1. A rubber internal mixing device comprises a device main body and a feed hopper arranged on the device main body, wherein a first treatment cavity and a second treatment cavity which can be communicated are arranged in the device main body; the first treatment cavity and the second treatment cavity are respectively used for carrying out primary treatment and secondary treatment on rubber;

the device is characterized in that a flashboard capable of being opened automatically under overpressure is arranged at the communication position of the first treatment cavity and the second treatment cavity;

one end of the flashboard is rotatably arranged at the communication position of the first treatment cavity and the second treatment cavity, and the other end of the flashboard closes the communication position through the pressure limiting mechanism.

2. The rubber internal mixing device of claim 1, wherein the pressure limiting mechanism comprises a pressure limiting member disposed inside the device body, the pressure limiting member is rotatably mounted on the device body, and the middle position of the pressure limiting member is engaged or sucked on the device body.

3. The rubber internal mixing device of claim 2, wherein the pressure limiting piece is provided with a second suction piece, and the device body is provided with a first suction piece which is sucked with the second suction piece.

4. The rubber internal mixing device according to claim 1, wherein a state maintaining mechanism is provided between the device main body and the shutter, and the state maintaining mechanism is used for maintaining the shutter in an open state after the first processing chamber and the second processing chamber are communicated.

5. A rubber internal mixing device according to claim 4, wherein said state keeping mechanism is an engaging mechanism or a catching mechanism provided on the device main body and the shutter.

6. The rubber internal mixing device of claim 5, wherein the suction mechanism is a fourth suction member provided on the device body and a third suction member provided on the shutter, and the third suction member is provided for suction with the fourth suction member.

7. The rubber internal mixing device of claim 2, wherein the gate plate is rotatably mounted on the device body through a torsion spring, and the pressure limiting member includes an attraction portion and a locking portion, wherein the attraction portion is rotatably mounted on the device body, the attraction portion is engaged with or attracted to the device body, the locking portion is rotatably mounted on the attraction portion, and the locking portion is elastically rotatably mounted on the attraction portion, and the attraction portion is further provided with a limiting structure for limiting rotation of the locking portion.

8. The rubber internal mixing device of claim 7, wherein the attraction part is rotatably mounted on the device body through a torsion spring.

9. The rubber internal mixing device of claim 1, wherein a mounting cavity is arranged at the through hole in the feeding hopper, a rotating shaft is eccentrically arranged in the mounting cavity, the rotating shaft is arranged in a self-rotating manner, a plurality of expansion plates are arranged on the rotating shaft in an array manner, and one ends of the expansion plates, far away from the rotating shaft, elastically abut against the inner wall of the mounting cavity; the outer side of the rotating shaft is provided with a retractable plate which is divided into a plurality of independent material conveying grooves.

Background

The closed rubber mixing machine is called as internal mixer, also called as kneading machine, and is mainly used for plastication and mixing of rubber. An internal mixer is a machine which is provided with a pair of rotors of a specific shape and rotating relative to each other and which plasticizes and mixes polymer materials with clearance in a closed state with adjustable temperature and pressure.

Because the rubber internal mixing device can take place pressure variation in the course of handling, and it does not have the decompression function of current equipment, and then leads to the too big of equipment internal pressure in the course of handling, has certain risk, consequently provides a rubber internal mixing device now and solves this technical problem.

Disclosure of Invention

The invention aims to provide a rubber banburying device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a rubber internal mixing device comprises a device main body and a feed hopper arranged on the device main body, wherein a first treatment cavity and a second treatment cavity which can be communicated are arranged in the device main body; the first treatment cavity and the second treatment cavity are respectively used for carrying out primary treatment and secondary treatment on rubber;

a flashboard capable of being opened automatically under overpressure is arranged at the communication position of the first treatment cavity and the second treatment cavity;

one end of the flashboard is rotatably arranged at the communication position of the first treatment cavity and the second treatment cavity, and the other end of the flashboard closes the communication position through the pressure limiting mechanism.

As a further scheme of the invention: the pressure limiting mechanism comprises a pressure limiting piece arranged in the device main body, the pressure limiting piece is rotatably arranged on the device main body, and the middle position of the pressure limiting piece is clamped or sucked on the device main body.

As a still further scheme of the invention: the pressure limiting piece is provided with a second suction piece, and the device main body is provided with a first suction piece which is sucked with the second suction piece.

As a still further scheme of the invention: a state maintaining mechanism is arranged between the device main body and the flashboard, and the flashboard is used for maintaining an open state after the first treatment cavity and the second treatment cavity are communicated.

As a still further scheme of the invention: the state maintaining mechanism is a suction mechanism or a clamping mechanism arranged on the device main body and the flashboard.

As a still further scheme of the invention: the actuation mechanism is the fourth actuation spare of setting in the device main part and sets up the third actuation spare on the flashboard, third actuation spare is used for setting up with fourth actuation spare actuation.

As a still further scheme of the invention: the flashboard rotates through the torsional spring and installs in the device main part, just the voltage limiting piece includes actuation portion and sticking department, wherein actuation portion rotates and installs in the device main part, actuation portion block or actuation are in the device main part, the sticking department rotates and installs in actuation portion, just sticking department elasticity rotates and installs on actuation portion, still be equipped with restriction sticking department pivoted limit structure on the actuation portion.

As a still further scheme of the invention: the attraction part is rotatably installed on the device main body through a torsion spring.

As a still further scheme of the invention: an installation cavity is formed in the through hole in the feeding hopper, a rotating shaft is eccentrically arranged in the installation cavity and is arranged in a self-rotating mode, a plurality of telescopic plates are arranged on the rotating shaft in an array mode, and one ends, far away from the rotating shaft, of the telescopic plates elastically abut against the inner wall of the installation cavity; the outer side of the rotating shaft is provided with a retractable plate which is divided into a plurality of independent material conveying grooves.

Compared with the prior art, the invention has the beneficial effects that: when the pressure reaches the set pressure, the completion of the primary treatment in the first treatment cavity is indicated, at the moment, the flashboard overcomes the pressure of the pressure limiting mechanism, the first treatment cavity is communicated with the second treatment cavity in a rotating mode, so that the rubber in the first treatment cavity flows into the second treatment cavity, the second treatment cavity carries out secondary treatment on the rubber, and meanwhile the first treatment cavity is communicated with the second treatment cavity to further limit the pressure of the first treatment cavity, further the safety of banburying is ensured, and the overpressure in the device main body is prevented; the arrangement of the flashboard ensures that the primary treatment can be thoroughly completed in the first treatment cavity, and the use safety can be ensured.

Drawings

FIG. 1 is a schematic structural diagram of a rubber internal mixing device.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a schematic structural diagram of a rotating shaft in the rubber internal mixing device.

In the figure: the device comprises a device main body-1, a first treatment cavity-2, a second treatment cavity-3, a gate plate-4, a pressure limiting piece-5, a suction part-6, a locking part-7, a limiting rod-8, a first suction piece-9, a second suction piece-10, a feed hopper-11, a rotating shaft-12, a telescopic plate-13, a mounting cavity-14, a first extrusion roller set-15, a second extrusion roller set-16, a discharge port-17, a third suction piece-18 and a fourth suction piece-19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, in embodiment 1 of the present invention, a structural diagram of a rubber internal mixing device provided in the embodiment of the present invention includes: the device comprises a device body 1 and a feed hopper 11 arranged on the device body 1, wherein a first treatment cavity 2 and a second treatment cavity 3 which can be communicated are arranged in the device body 1; the first treatment cavity 2 and the second treatment cavity 3 are respectively used for carrying out primary treatment and secondary treatment on rubber;

a flashboard 4 capable of being opened automatically under overpressure is arranged at the communication position of the first treatment cavity 2 and the second treatment cavity 3;

specifically, 4 one end of flashboard rotates and installs in first process chamber 2 and the 3 intercommunication departments of second process chamber, 4 the other end of flashboard closes the intercommunication department through the pressure limiting mechanism.

Specifically, rubber to be treated enters a first treatment chamber 2 to be subjected to primary treatment, after the primary treatment is finished, the pressure inside the first treatment chamber 2 is increased, when the pressure reaches a set pressure, the primary treatment inside the first treatment chamber 2 is finished, at the moment, a flashboard 4 overcomes the pressure of a pressure limiting mechanism, and rotates to communicate the first treatment chamber 2 with a second treatment chamber 3, so that the rubber in the first treatment chamber 2 flows into the second treatment chamber 3, the second treatment chamber 3 performs secondary treatment on the rubber, and the first treatment chamber 2 is communicated with the second treatment chamber 3 to further limit the pressure of the first treatment chamber 2, so that the safety of banburying is ensured, and overpressure inside a device main body 1 is prevented; through setting up flashboard 4, guaranteed to thoroughly accomplish primary treatment in first treatment chamber 2, can guarantee safe in utilization again.

Example 2

Referring to fig. 1 to 3, the main difference between the present embodiment 2 and the present embodiment 1 is that the pressure limiting mechanism includes a pressure limiting member 5 disposed inside the device main body 1, the pressure limiting member 5 is rotatably mounted on the device main body 1, and the middle position of the pressure limiting member 5 is engaged with or attracted to the device main body 1.

When the internal pressure of the first processing cavity 2 is greater than the force of the pressure limiting piece 5 clamped or sucked on the device main body 1, the pressure limiting piece 5 rotates, and then the flashboard 4 is free from the pressure limiting piece 5 to limit the position of the flashboard 4, so that the flashboard 4 rotates, and the first processing cavity 2 is communicated with the second processing cavity 3.

Specifically, a second suction member 10 is arranged on the pressure limiting member 5, and a first suction member 9 which is sucked with the second suction member 10 is arranged on the device body 1, so that the pressure limiting member 5 is sucked and installed on the device body 1. The second suction element 10 and the first suction element 9 can be a suction cup or an electromagnet. The second engaging element 10 can also be snapped onto the first engaging element 9, and the second engaging element 10 can be configured as a snap.

As a preferred embodiment of the present invention, the shutter 4 is maintained in an open state for the first and second process chambers 2 and 3 to communicate with each other; a state maintaining mechanism is provided between the apparatus main body 1 and the shutter 4. Specifically, state holding mechanism is for setting up actuation mechanism or block mechanism on device main part 1 and flashboard 4, and specific block mechanism adopts current buckle setting, also can set up to actuation mechanism, actuation mechanism is for setting up fourth actuation 19 and the third actuation 18 of setting on flashboard 4 on device main part 1, third actuation 18 is used for setting up with the actuation of fourth actuation 19, third actuation 18 and fourth actuation 19 can be the electro-magnet or be the sucking disc. The third engaging element 18 is arranged on the shutter 4 remote from the pivot end.

As a preferred embodiment of the present invention, in order to enable the shutter 4 to automatically close the communication between the first process chamber 2 and the second process chamber 3, it is provided. Consequently flashboard 4 rotates through the torsional spring and installs on device main part 1, just pressure-limiting piece 5 includes actuation portion 6 and sticking portion 7, wherein actuation portion 6 rotates and installs on device main part 1, 6 blocks of actuation portion or actuation are on device main part 1, sticking portion 7 rotates and installs at actuation portion 6, just sticking portion 7 elasticity rotates and installs on actuation portion 6, sticking portion 7 can rotate through the torsional spring elasticity and install on actuation portion 6, still be equipped with restriction sticking portion 7 pivoted limit structure on actuation portion 6, restrict the rotation of sticking portion 7 through limit structure, and then can block flashboard 4 on sticking portion 7, locking portion 7 can rotate when flashboard 4 rotates and closes the intercommunication department, and then can slide in to the latched position of pressure-limiting piece 5, the secondary operation needs of being convenient for. The suction portion 6 is provided with a limiting rod 8 for limiting the rotating position of the locking portion 7.

As a preferred embodiment of the present invention, in order to facilitate the pressure-limiting member 5 to return to the initial state, the engaging portion 6 may be rotatably mounted on the apparatus body 1 by a torsion spring, or may be elastically and rotatably mounted on the apparatus body 1 by other means.

As a preferred embodiment of the present invention, in order to solve the problem that the waste gas inside the first processing chamber 2 is exhausted and affects the environment when the raw material is added into the first processing chamber 2, an installation chamber 14 is arranged at a through hole inside the feeding hopper 11, a rotating shaft 12 is eccentrically arranged inside the installation chamber 14, the rotating shaft 12 is arranged in a self-rotating manner, a plurality of expansion plates 13 are arranged on the rotating shaft 12 in an array manner, and one end of each expansion plate 13, which is far away from the rotating shaft 12, elastically abuts against the inner wall of the installation chamber 14; there is expansion plate 13 to cut apart into a plurality of independent defeated silo in the pivot 12 outside, during the material loading defeated silo is in the upper end, then rotates and pour the raw materials into to device main part 1 inside when changing the below, then rotates after that, because eccentric settings, defeated silo space diminishes this moment, it is inside to the pivot 12 that all enter into to the expansion plate 13 of defeated silo both sides, and then defeated silo is whole compressed, so and then avoid the inside air of device main part 1 to pass through defeated silo discharge, and then guarantee safe in utilization, prevent air escape.

The inside first extrusion roller set 15 that is provided with of first treatment chamber 2, the inside second extrusion roller set 16 that is provided with of second treatment chamber 3 is used for handling the raw materials through first extrusion roller set 15 and second extrusion roller set 16.

The bottom of the second processing chamber 3 is provided with a discharge port 17, and the discharge port 17 is arranged to facilitate discharging the raw materials.

Be provided with drive pivot 12 on the feeder hopper 11 and rotate actuating mechanism, actuating mechanism includes the driving motor who is connected with the 12 transmissions of pivot, the motor provides power for the pivot 12 rotates.

The working principle of the invention is as follows:

rubber to be processed is added to an inlet above a feed hopper 11, then a rotating shaft 12 rotates, a conveying chute on the rotating shaft 12 is arranged at the upper end when being fed, then the rotating shaft is changed to the lower side, raw materials are poured into the device main body 1, then the rotating shaft rotates, due to eccentric arrangement, the space of the conveying chute is reduced until telescopic plates 13 on two sides of the conveying chute completely enter the rotating shaft 12, then the conveying chute is completely compressed, and therefore air in the device main body 1 is prevented from being discharged through the conveying chute, use safety is guaranteed, and air is prevented from being discharged; the raw materials enter the first processing cavity 2 to be subjected to primary processing, the internal pressure of the first processing cavity 2 is increased after the primary processing is finished, when the pressure reaches a set pressure, the primary processing in the first processing cavity 2 is finished, at the moment, the flashboard 4 overcomes the suction force between the first suction piece 9 and the second suction piece 10, the first processing cavity 2 and the second processing cavity 3 are communicated by rotating, so that the rubber in the first processing cavity 2 flows into the second processing cavity 3, the second processing cavity 3 carries out secondary processing on the rubber, and meanwhile, the first processing cavity 2 and the second processing cavity 3 are communicated, so that the pressure of the first processing cavity 2 is limited, the safety of banburying is ensured, and the internal overpressure of the device main body 1 is prevented; through setting up flashboard 4, guaranteed to thoroughly accomplish primary treatment in first treatment chamber 2, can guarantee safe in utilization again.

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, in the description of the present invention, "a plurality" means two or more unless otherwise specified. A feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.