1. The utility model provides an electric automatization sliding ring brush silk material feeding unit which characterized in that: including pneumatic means (1), centrifugal device (2), conveyor (3) and return means (4), its characterized in that:

the pneumatic device (1) comprises a pushing plate 105;

the centrifugal device (2) comprises a right driven bevel gear (219), a return spring lower support column (220), a return spring (221) and an upper fixing plate 222;

the conveying device (3) comprises a supporting plate (301), a centrifugal bevel gear (305) and a return spring upper support (307);

the return device (4) comprises a connecting plate (401);

the right driven helical gear (219) is rotatably installed on a driven shaft (217) and located on the right side of the left driven straight gear (218), a return spring lower supporting column (220) is fixedly installed on a return spring fixing plate (203), a return spring (221) is rotatably installed on the return spring lower supporting column (220), an upper fixing plate (222) is fixedly installed on a transmission cabin plate (201) and located on the inner sides of two sets of side fixing plates (202), a supporting plate (301) is fixedly installed on the upper fixing plate (222), a centrifugal helical gear (305) and the right driven helical gear (219) form gear engagement, the return spring on support (307) is fixedly installed on the lower surface of a return pipeline (306), the return spring on support (307) forms spring fit through the return spring (221) and the return spring lower supporting column (220), and a connecting plate (401) and a pushing plate (105) are fixedly connected.

2. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: the pneumatic device (1) further comprises a fixed base plate (101), an oil cylinder fixing plate (102), a hydraulic oil cylinder (103), a pushing connecting plate (104), a pipeline supporting plate (106), a driven pipeline (107) and a fixed pipeline (108), wherein the oil cylinder fixing plate (102) is fixedly arranged on the fixed base plate (101), the hydraulic oil cylinder (103) is rotatably arranged on the oil cylinder fixing plate (102), the pushing connecting plate (104) is fixedly arranged at one end of the hydraulic oil cylinder (103), the pushing plate (105) is fixedly connected with the pushing connecting plate (104), the pipeline supporting plate (106) is fixedly arranged on the upper surface of the middle part of the fixed base plate (101), the driven pipeline (107) and the pipeline supporting plate 106 form sliding fit, and the fixed pipeline (108) is arranged on the lower surface of the driven pipeline (107) in a sliding manner.

3. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: the centrifugal device (2) also comprises a transmission chamber plate (201), a side fixing plate (202), a return spring fixing plate (203), a motor fixing plate (204), a motor (205), a right belt pulley (206), a left belt pulley driven shaft (207), a left driven belt pulley (208), a driven belt (209), a driven bevel gear (210), a worm support plate (211), a worm (212), a connecting bevel gear (213), a turbine driven shaft (214), a turbine (215), a driven spur gear (216), a driven shaft (217) and a left driven spur gear (218), wherein the side fixing plate (202) is provided with two groups which are respectively and fixedly arranged at the left side and the right side of the transmission chamber plate (201), the return spring fixing plate (203) is fixedly arranged at the inner sides of the two groups of side fixing plates (202), the motor fixing plate (204) is fixedly arranged on the transmission chamber plate (201), and the motor (205) is fixedly arranged on the motor fixing plate (204), the right belt pulley (206) is rotatably arranged on a motor (205), a left belt pulley driven shaft (207) is rotatably arranged on a transmission bin plate (201), a left driven belt pulley (208) is rotatably arranged on the left belt pulley driven shaft (207), a driven belt (209), the left driven belt pulley (208) and the right belt pulley (206) form belt transmission fit, a driven helical gear (210) is rotatably arranged on the left belt pulley driven shaft (207), a worm support plate (211) is fixedly arranged on the upper surface of the middle part of the transmission bin plate (201), two ends of a worm (212) are respectively rotatably arranged in shaft holes at two sides of the worm support plate (211), a connecting helical gear (213) is rotatably arranged at one end of the worm (212), the connecting helical gear (213) and the driven helical gear (210) form gear engagement, a turbine driven shaft (214) is rotatably arranged in a right shaft hole of the transmission bin plate 201, the worm wheel (215) is rotatably arranged on a worm wheel driven shaft (214), the worm wheel (215) is in gear engagement with the worm (212), the driven spur gear (216) is rotatably arranged on the worm wheel driven shaft (214), the driven shaft (217) is rotatably arranged in a left shaft hole of the transmission chamber plate (201), the left driven spur gear (218) is rotatably arranged on the driven shaft (217), and the left driven spur gear (218) is in gear engagement with the driven spur gear (216).

4. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: conveyor (3) still include pan feeding pipeline (302), centrifugal feed bin tighrening ring (303), centrifugal feed bin (304) and return pipeline (306), pan feeding pipeline (302) carry out fixed connection with backup pad (301), centrifugal feed bin tighrening ring (303) carry out fixed connection with the both sides surface of pan feeding pipeline (302), centrifugal feed bin (304) rotate and install on centrifugal feed bin tighrening ring (303), centrifugal helical gear (305) carry out fixed connection with centrifugal feed bin (304), return pipeline (306) slidable mounting at the side surface of pan feeding pipeline (302).

5. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: the return device (4) also comprises a side protection plate (402), a fixed lower plate (403), a servo motor fixing plate (404), a servo motor (405), a driving helical gear (406), a middle driven shaft (407), a middle upper driven helical gear (408), a middle lower driven spur gear (409), a right side pulley driven shaft (410), a lower driven spur gear (411), a right side driven pulley (412), a left side pulley driven shaft (413), a left side driven pulley (414), a belt (415), a lower side driven spur gear (416), a driven rack (417), a sliding rail (418), a linear sliding block (419), a sliding block connecting plate (420), a return pipeline pressing plate (421), a left side spring support column (422), a spring support connecting plate (423), a right side spring support column (424) and a strong spring 425, wherein two groups of the side protection plates (402) are respectively and fixedly installed at the left side and the right side of the connecting plate (401), the fixed lower plate (403) is fixedly arranged on the lower surfaces of two groups of side protection plates (402), a servo motor fixing plate (404) is fixedly arranged on the fixed lower plate (403), a servo motor (405) is fixedly arranged on the servo motor fixing plate (404), a driving bevel gear (406) is rotatably arranged on the servo motor (405), a middle driven shaft (407) is rotatably arranged in a middle shaft hole of the fixed lower plate (403), a middle upper driven bevel gear (408) is rotatably arranged on the middle driven shaft (407), the middle upper driven bevel gear (408) and the driving bevel gear (406) form gear engagement, a middle lower driven spur gear (409) is rotatably arranged on the middle driven shaft (407) below the middle upper driven bevel gear (408), a right side belt pulley driven shaft (410) is rotatably arranged in a right side shaft hole of the fixed lower plate (403), a lower driven spur gear (411) is rotationally arranged on a right-side pulley driven shaft (410), a right-side driven pulley (412) is rotationally arranged on the right-side pulley driven shaft (410) and is positioned above the lower driven spur gear (411), a left-side pulley driven shaft (413) is rotationally arranged in a left-side shaft hole of a fixed lower plate (403), a left-side driven pulley (414) is rotationally arranged on the left-side pulley driven shaft (413), a lower-side driven spur gear (416) is rotationally arranged on the left-side pulley driven shaft (413) and is positioned below the left-side driven pulley (414), a driven rack (417) is in sliding fit with the fixed lower plate (403), the driven rack (417) is in gear engagement with the lower-side driven spur gear (416), a sliding rail (418) is fixedly arranged on the upper right-side surface of the fixed lower plate (403), and a linear sliding block (419) is in sliding fit with the sliding rail (418), the slide block connecting plate (420) and the linear slide block (419) are fixedly connected, the slide block connecting plate (420) and the driven rack (417) are fixedly connected, the return pipeline pressing plate (421) and the slide block connecting plate (420) are fixedly connected, the left spring supporting column (422) is fixedly installed on the right side surface of the return pipeline pressing plate (421), the spring supporting connecting plate (423) and the connecting plate (401) form sliding fit, and the right spring supporting column (424) is fixedly installed on the inner side surface of the spring supporting connecting plate (423).

6. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: the lower driven spur gear (411) and the middle lower driven spur gear (409) form gear engagement.

7. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: the belt (415) of (a) forms a belt drive fit with the left driven pulley (414) and the right driven pulley (412).

8. An electrically automated slip ring brush wire feeder according to claim 1, characterized in that: the right spring rest (424) forms a spring fit with the left spring rest (422) via a strong spring (425).

Background

The existence of material feeding unit can save a large amount of costs of labor for the enterprise in a lot of assembly line enterprises, and current closed material feeding unit is after equipment is static, and the material that remains in the feed bin and cause the jam easily, in order to solve this kind of problem, application number CN201922149301.1 opened an electric automatization material feeding unit, but the device simple structure just can not clear up the material in the pipeline feed bin automatically, can not fine prevent to block up.

Disclosure of Invention

To the technical problem, the electric automatic sliding ring brush wire feeding device comprises a pneumatic device, a centrifugal device, a conveying device and a return device.

The pneumatic device comprises a pushing plate. The centrifugal device comprises a right driven helical gear, a return spring lower supporting column, a return spring and an upper fixing plate. The conveying device comprises a supporting plate, a centrifugal bevel gear and a return spring. The return device comprises a connecting plate.

The driven helical gear of right side rotate and install the right side that is located the driven straight-teeth gear of left side on the driven shaft, return spring hold up the post fixed mounting on the return spring fixed plate down, return spring rotate and install and hold up under the return spring on the post, an upper fixed plate fixed mounting on the transmission storehouse board lie in the inboard of two sets of side fixed plates, backup pad fixed mounting on an upper fixed plate, centrifugal helical gear and the driven helical gear of right side form gear engagement, return spring on hold up the lower surface of fixed mounting at the return line, return spring on hold up and hold up the post through return spring and return spring down and form the spring cooperation, the connecting plate carry out fixed connection with the slurcam.

The pneumatic device of (2) still include PMKD, the hydro-cylinder fixed plate, hydraulic cylinder, promote the connecting plate, the pipeline backup pad, driven pipeline and fixed pipeline, hydro-cylinder fixed plate fixed mounting is on PMKD, hydraulic cylinder rotate and install on the hydro-cylinder fixed plate, promotion connecting plate fixed mounting in hydraulic cylinder's one end, the slurcam carry out fixed connection with the promotion connecting plate, pipeline backup pad fixed mounting at PMKD's middle part upper surface, driven pipeline and pipeline backup pad form sliding fit, fixed pipeline installation sliding mounting at driven pipeline's lower surface.

The centrifugal device also comprises a transmission chamber plate, a side fixing plate, a return spring fixing plate, a motor, a right belt pulley, a left belt pulley driven shaft, a left driven belt pulley, a driven belt, a driven helical gear, a worm supporting plate, a worm, a connecting helical gear, a turbine driven shaft, a turbine, a driven straight gear, a driven shaft and a left driven straight gear, wherein the side fixing plate is provided with two groups which are fixedly arranged at the left side and the right side of the transmission chamber plate respectively, the return spring fixing plate is fixedly arranged at the inner sides of the two groups of side fixing plates, the motor fixing plate is fixedly arranged on the transmission chamber plate, the motor is fixedly arranged on the motor fixing plate, the right belt pulley is rotatably arranged on the motor, the left belt pulley driven shaft is rotatably arranged on the transmission chamber plate, the left driven belt is in belt transmission fit with the left driven belt pulley and the right belt pulley, the driven helical gear of (2) rotate and install on the left belt pulley driven shaft, worm backup pad fixed mounting at transmission storehouse board middle part upper surface, the both ends of worm rotate respectively and install in worm backup pad both sides shaft hole, the connection helical gear rotate and install the one end at the worm, connection helical gear and driven helical gear form gear engagement, the turbine driven shaft rotate and install in the right side shaft hole of transmission storehouse board, the turbine rotate and install on the turbine driven shaft, turbine and worm form gear engagement, driven spur gear rotate and install on the turbine driven shaft, the driven shaft rotate and install in the left side shaft hole of transmission storehouse board, left driven spur gear rotate and install on the driven shaft, left driven spur gear and driven spur gear form gear engagement.

The conveying device further comprises a feeding pipeline, a centrifugal bin fastening ring, a centrifugal bin and a return pipeline, the feeding pipeline is fixedly connected with the supporting plate, the centrifugal bin fastening ring is fixedly connected with the surfaces of the two sides of the feeding pipeline, the centrifugal bin is rotatably installed on the centrifugal bin fastening ring, the centrifugal helical gear is fixedly connected with the centrifugal bin, and the return pipeline is slidably installed on the side surface of the feeding pipeline.

The return device also comprises a side protection plate, a fixed lower plate, a servo motor fixing plate, a servo motor, a driving bevel gear, a middle driven shaft, a middle upper driven bevel gear, a middle lower driven straight gear, a right belt pulley driven shaft, a lower driven straight gear, a right driven belt pulley, a left belt pulley driven shaft, a left driven belt pulley, a belt, a lower driven straight gear, a driven rack, a slide rail, a linear slider, a slider connecting plate, a return pipeline pressing plate, a left spring supporting column, a spring supporting connecting plate, a right spring supporting and a strong spring, wherein the side protection plate comprises two groups of side protection plates which are respectively and fixedly arranged on the left side and the right side of the connecting plate, the fixed lower plate is fixedly arranged on the lower surfaces of the two groups of side protection plates, the servo motor fixing plate is fixedly arranged on the fixed lower plate, the servo motor of the bevel gear is fixedly arranged on the servo motor fixing plate, and the driving rotation of the bevel gear is arranged on the servo motor, the middle driven shaft is rotatably arranged in a middle shaft hole of the fixed lower plate, the middle upper driven bevel gear is rotatably arranged on the middle driven shaft, the middle upper driven bevel gear and the driving bevel gear form gear engagement, the middle lower driven spur gear is rotatably arranged on the middle driven shaft and positioned below the middle upper driven bevel gear, the right side belt pulley driven shaft is rotatably arranged in a right side shaft hole of the fixed lower plate, the lower driven spur gear is rotatably arranged on the right side belt pulley driven shaft, the right side driven belt pulley is rotatably arranged on the right side belt pulley driven shaft and positioned above the lower driven spur gear, the left side belt pulley driven shaft is rotatably arranged in a left side shaft hole of the fixed lower plate, the left side driven belt pulley is rotatably arranged on the left side belt pulley driven shaft, the lower side driven spur gear is rotatably arranged on the left side belt pulley driven shaft and positioned below the left side driven belt pulley, driven rack and fixed hypoplastron form sliding fit, driven rack and the driven straight-tooth gear of downside form gear engagement, slide rail fixed mounting on the right side upper surface of fixed hypoplastron, sharp slider and slide rail form sliding fit, the slider connecting plate carry out fixed connection with sharp slider, the slider connecting plate carry out fixed connection with driven rack, return pipeline clamp plate and slider connecting plate carry out fixed connection, left side spring hold up post fixed mounting on the right side surface of return pipeline clamp plate, the spring hold up the connecting plate and form sliding fit with the connecting plate, the right side spring hold up fixed mounting on the inside surface that the connecting plate was held up to the spring.

Further, the lower driven spur gear and the middle lower driven spur gear form gear meshing.

Further, the belt forms a belt drive fit with the left driven pulley and the right driven pulley.

Furthermore, the right side spring is held and forms spring fit with the left side spring holding column through a strong spring.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention can be suitable for various closed materials to carry out centrifugal stable conveying on the closed materials.

(2) The automatic pushing and cleaning device can automatically push and clean the excess materials in the pipeline after the materials are conveyed.

(3) The invention can automatically return the pipeline after the excess material is pushed out to prepare the next equipment operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the pneumatic device of the present invention.

FIG. 3 is a schematic view of the structure of the centrifugal apparatus of the present invention.

Fig. 4 is a schematic view of the internal structure of the conveying device of the present invention.

Fig. 5 is a schematic view of the internal assembly of the return device of the present invention.

Fig. 6 is a schematic view of the internal assembly structure of the return device of the present invention.

Fig. 7 is a schematic structural view of a return device according to the present invention.

In the figure: 1-a pneumatic device; 2-a centrifugal device; 3-a conveying device; 4-a return device; 101-a fixed baseplate; 102-oil cylinder fixing plate; 103-a hydraulic oil cylinder; 104-pushing the connecting plate; 105-a pusher plate; 106-a tube support plate; 107-slave line; 108-fixed piping; 201-a transmission cabin plate; 202-side fixing plate; 203-return spring fixing plate; 204-motor fixing plate; 205-a motor; 206-right pulley; 207-left pulley driven shaft; 208-left driven pulley; 209-driven belt; 210-a driven bevel gear; 211-worm support plate; 212-a worm; 213-connecting a bevel gear; 214-turbine driven shaft; 215-a turbine; 216-driven spur gear; 217-driven shaft; 218-left driven spur gear; 219-right driven bevel gear; 220-a lower support post of a return spring; 221-a return spring; 222-an upper fixing plate; 301-a support plate; 302-a feeding pipeline; 303-centrifugal bin fastening ring; 304-a centrifugal silo; 305-centrifugal bevel gear; 306-return line; 307-holding on a return spring; 401-connecting plate; 402-side shield plate; 403-fixing the lower plate; 404-servo motor fixing plate; 405-a servo motor; 406-driving bevel gear; 407-intermediate driven shaft; 408-middle upper driven bevel gear; 409-middle lower driven spur gear; 410-right side pulley driven shaft; 411-lower driven spur gear; 412-right driven pulley; 413-left side pulley driven shaft; 414-left driven pulley; 415-a belt; 416-lower driven spur gear; 417-driven rack; 418-sliding rail; 419-linear slide block; 420-a slider connecting plate; 421-return pipeline pressure plate; 422-left spring support; 423-spring holding the connection plate; 424-right spring hold; 425-Strong spring.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

Example (b): an electric automatic slip ring brush wire feeding device is shown in figures 1, 2, 3, 4, 5, 6 and 7.

An electric automation slip ring brush wire feeding device comprises a pneumatic device 1, a centrifugal device 2, a conveying device 3 and a return device 4. The pneumatic device 1 comprises a push plate 105. The centrifugal device 2 comprises a right driven bevel gear 219, a return spring lower support column 220, a return spring 221 and an upper fixing plate 222. The conveying device 3 comprises a support plate 301, a centrifugal bevel gear 305 and a return spring upper support 307. The return means 4 comprise a connection plate 401.

The right driven helical gear 219 is rotatably installed on the driven shaft 217 and located on the right side of the left driven spur gear 218, the return spring lower support column 220 is fixedly installed on the return spring fixing plate 203, the return spring 221 is rotatably installed on the return spring lower support column 220, the upper fixing plate 222 is fixedly installed on the transmission chamber plate 201 and located on the inner sides of the two sets of side fixing plates 202, the supporting plate 301 is fixedly installed on the upper fixing plate 222, the centrifugal helical gear 305 and the right driven helical gear 219 form gear engagement, the return spring upper support 307 is fixedly installed on the lower surface of the return pipeline 306, the return spring upper support 307 forms spring fit through the return spring 221 and the return spring lower support column 220, and the connecting plate 401 is fixedly connected with the pushing plate 105.

The pneumatic device 1 further comprises a fixed base plate 101, an oil cylinder fixing plate 102, a hydraulic oil cylinder 103, a pushing connecting plate 104, a pipeline supporting plate 106, a driven pipeline 107 and a fixed pipeline 108, the oil cylinder fixing plate 102 is fixedly installed on the fixed base plate 101, the hydraulic oil cylinder 103 is rotatably installed on the oil cylinder fixing plate 102, the pushing connecting plate 104 is fixedly installed at one end of the hydraulic oil cylinder 103, the hydraulic oil cylinder 103 is a power source, the pushing connecting plate 104 is driven to move when the hydraulic oil cylinder 103 runs, the pushing plate 105 is fixedly connected with the pushing connecting plate 104, the pipeline supporting plate 106 is fixedly installed on the upper surface of the middle of the fixed base plate 101, the driven pipeline 107 and the pipeline supporting plate 106 form sliding fit, and the fixed pipeline 108 is installed on the lower surface of the driven pipeline 107 in a sliding manner.

The centrifugal device 2 further comprises a transmission chamber plate 201, a side fixing plate 202, a return spring fixing plate 203, a motor fixing plate 204, a motor 205, a right belt pulley 206, a left belt pulley driven shaft 207, a left driven belt pulley 208, a driven belt 209, a driven helical gear 210, a worm support plate 211, a worm 212, a connecting helical gear 213, a turbine driven shaft 214, a turbine 215, a driven spur gear 216, a driven shaft 217 and a left driven spur gear 218, wherein two groups of the side fixing plate 202 are respectively and fixedly arranged at the left side and the right side of the transmission chamber plate 201, the return spring fixing plate 203 is fixedly arranged at the inner sides of the two groups of the side fixing plates 202, the motor fixing plate 204 is fixedly arranged on the transmission chamber plate 201, the motor 205 is fixedly arranged on the motor fixing plate 204, the right belt pulley 206 is rotatably arranged on the motor 205, the motor 205 is a power source, the right belt pulley 206 is driven to rotate when the motor 205 rotates, the left belt pulley driven shaft 207 is rotatably arranged on the transmission chamber plate 201, the left driven pulley 208 is rotatably mounted on the left pulley driven shaft 207, the driven belt 209 is in belt transmission fit with the left driven pulley 208 and the right pulley 206, the driven bevel gear 210 is rotatably mounted on the left pulley driven shaft 207, when the right pulley 206 rotates, the driven belt 209 drives the left driven pulley 208 and the driven bevel gear 210 synchronously connected with the left driven pulley 208 to synchronously rotate, the worm support plate 211 is fixedly mounted on the upper surface of the middle part of the transmission chamber plate 201, two ends of the worm 212 are respectively rotatably mounted in shaft holes at two sides of the worm support plate 211, when the driven bevel gear 210 rotates, the driven bevel gear 213 is driven to synchronously rotate with the worm 212 fixedly connected with the driven bevel gear 213, the connecting bevel gear 213 is rotatably mounted at one end of the worm 212, the connecting bevel gear 213 and the driven bevel gear 210 form gear engagement, the turbine driven shaft 214 is rotatably mounted in a right shaft hole of the transmission chamber plate 201, and the turbine 215 is rotatably mounted on the turbine driven shaft 214, the worm wheel 215 is in gear engagement with the worm 212, the driven spur gear 216 is rotatably mounted on a worm wheel driven shaft 214, when the worm 212 rotates, the worm wheel 215 and the driven spur gear 216 synchronously connected with the worm wheel are driven to rotate synchronously, the driven shaft 217 is rotatably mounted in a left shaft hole of the transmission chamber plate 201, the left driven spur gear 218 is rotatably mounted on the driven shaft 217, the left driven spur gear 218 and the driven spur gear 216 form gear engagement, and when the driven spur gear 216 rotates, the left driven spur gear 218 and the right driven helical gear 219 synchronously connected with the left driven spur gear 218 are driven to rotate synchronously.

Conveyor 3 still includes pan feeding pipeline 302, centrifugal feed bin tighrening ring 303, centrifugal feed bin 304 and return pipeline 306, pan feeding pipeline 302 carries out fixed connection with backup pad 301, centrifugal feed bin tighrening ring 303 carries out fixed connection with the both sides surface of pan feeding pipeline 302, centrifugal feed bin 304 rotates and installs on centrifugal feed bin tighrening ring 303, centrifugal helical gear 305 carries out fixed connection with centrifugal feed bin 304, it is rotatory to drive centrifugal helical gear 305 when driven helical gear 219 rotates in the right side, return pipeline 306 slidable mounting is at the side surface of pan feeding pipeline 302.

The return device 4 further comprises a side protection plate 402, a fixed lower plate 403, a servo motor fixing plate 404, a servo motor 405, a driving bevel gear 406, a middle driven shaft 407, a middle upper driven bevel gear 408, a middle lower driven spur gear 409, a right pulley driven shaft 410, a lower driven spur gear 411, a right driven pulley 412, a left pulley driven shaft 413, a left driven pulley 414, a belt 415, a lower driven spur gear 416, a driven rack 417, a slide rail 418, a linear slide block 419, a slide block connecting plate 420, a return pipeline pressing plate 421, a left spring support column 422, a spring support connecting plate 423, a right spring support 424 and a strong spring 425, wherein two groups of the side protection plate 402 are respectively and fixedly installed on the left side and the right side of the connecting plate 401, the fixed lower plate 403 is fixedly installed on the lower surfaces of the two groups of the side protection plates 402, a servo motor 405 is fixedly arranged on a servo motor fixing plate 404, a driving bevel gear 406 is rotatably arranged on the servo motor 405, the servo motor 405 is a power source, the driving bevel gear 406 is driven to rotate when the servo motor 405 rotates, an intermediate driven shaft 407 is rotatably arranged in an intermediate shaft hole of a fixed lower plate 403, an intermediate upper driven bevel gear 408 is rotatably arranged on the intermediate driven shaft 407, the intermediate upper driven bevel gear 408 and the driving bevel gear 406 form gear engagement, an intermediate lower driven spur gear 409 is rotatably arranged on the intermediate driven shaft 407 below the intermediate upper driven bevel gear 408, the driving bevel gear 406 drives the intermediate upper driven bevel gear 408 and the intermediate lower driven spur gear 409 synchronously connected with the intermediate upper driven bevel gear 408 to rotate synchronously, a right side pulley driven shaft 410 is rotatably arranged in a right side shaft hole of the fixed lower plate 403, and a lower driven spur gear 411 is rotatably arranged on the right side pulley driven shaft 410, a right driven pulley 412 is rotatably mounted on the right pulley driven shaft 410 above the lower driven spur gear 411, the lower driven spur gear 411 and the right driven pulley 412 synchronously connected therewith are driven to rotate synchronously when the middle lower driven spur gear 409 rotates, a left pulley driven shaft 413 is rotatably mounted in a left shaft hole of the fixed lower plate 403, a left driven pulley 414 is rotatably mounted on the left pulley driven shaft 413, a lower driven spur gear 416 is rotatably mounted on the left pulley driven shaft 413 below the left driven pulley 414, the left driven pulley 414 and the lower driven spur gear 416 synchronously connected therewith are driven to rotate synchronously by a belt 415 when the right driven pulley 412 rotates, a driven rack 417 forms a sliding fit with the fixed lower plate 403, a driven rack 417 forms a gear engagement with the lower driven spur gear 416, the driven rack 417 is driven to move when the lower driven spur gear 416 rotates, slide rail 418 is fixedly installed on the right upper surface of fixed lower plate 403, linear slide block 419 and slide rail 418 form sliding fit, slide block connecting plate 420 and linear slide block 419 carry out fixed connection, slide block connecting plate 420 and driven rack 417 carry out fixed connection, return pipeline clamp plate 421 and slide block connecting plate 420 carry out fixed connection, left side spring holds up post 422 and fixedly installs on the right side surface of return pipeline clamp plate 421, spring holds up connecting plate 423 and forms sliding fit with connecting plate 401, right side spring holds up 424 and fixedly installs on the inside surface that spring held up connecting plate 423.

The lower driven spur gear 411 and the intermediate lower driven spur gear 409 form a gear mesh. The belt 415 is in belt driving engagement with the left driven pulley 414 and the right driven pulley 412. The right spring rest 424 is in spring engagement with the left spring rest 422 by a strong spring 425.