1. A pneumatic punching mechanism is characterized by comprising a punching guide sleeve mounting plate (3), a power mechanism and an actuating mechanism; the power mechanism comprises a cylinder (12) and a punching lever (8); the actuating mechanism comprises a punching shaft (17), a punching sleeve (18), a punching shaft mounting plate (5), a hinge plate (7) and a punching guide sleeve (4);

the two cylinders (12) are arranged on one side of the punching guide sleeve mounting plate (3) side by side, the output ends of the two cylinders (12) penetrate through the punching guide sleeve mounting plate (3) and are connected through a cylinder connecting shaft (21), and the cylinder connecting shaft (21) is connected with the lower end of the punching lever (8); the upper end of the punching lever (8) is connected with one side of the punching shaft mounting plate (5), the middle of the punching lever (8) is hinged with the hinged plate (7), the hinged plate (7) is fixedly arranged on the other side of the punching guide sleeve mounting plate (3), the hinged plate (7) vertically penetrates through the punching shaft mounting plate (5), and the punching shaft mounting plate (5) can slide on the hinged plate (7); the punching shaft (17) is arranged on the other side of the punching shaft mounting plate (5), the punching sleeve (18) is arranged in the punching guide sleeve (4), the punching guide sleeve (4) is arranged on the punching guide sleeve mounting plate (3), and the punching shaft (17) can move in the punching guide sleeve (4).

2. The pneumatic punching mechanism according to claim 1, wherein the punching guide sleeve mounting plate (3) is provided at an upper end thereof with a passing groove (1).

3. The pneumatic punching mechanism according to claim 1, wherein a waste box (2) is arranged on one side of the punching guide sleeve mounting plate (3), and the bottom of the waste box (2) is connected with a plastic corrugated pipe (20) through a plastic corrugated pipe joint (19).

4. The pneumatic punching mechanism according to claim 1, wherein a loose joint bolt (9) is respectively mounted on the output ends of the two air cylinders (12), the two loose joint bolts (9) are connected through the air cylinder connecting shaft (21), and the air cylinder connecting shaft (21) penetrates through the lower end of the punching lever (8) and is connected with the lower end of the punching lever (8).

5. The pneumatic punching mechanism according to claim 4, wherein the cylinder connecting shafts (21) on both sides of the lower end of the punching lever (8) are respectively sleeved with an equal-height sleeve (10).

6. The pneumatic punching mechanism according to claim 1, wherein the cylinder (12) is a thin cylinder; the two air cylinders (12) act together and are provided with two magnetic switches (11).

7. The pneumatic punching mechanism according to claim 1, wherein the upper end of the punching lever (8) is connected with two connecting plates (6) on one side of the punching shaft mounting plate (5) through a first pin shaft (15), and the first pin shaft (15) passes through elliptical holes on the two connecting plates (6); the middle part of the punching lever (8) is hinged with the hinge plate (7) through a second shaft pin (14).

8. The pneumatic punching mechanism according to claim 1, wherein the punching shaft (17) is a T-shaped punching shaft, and the front end of the punching shaft (17) is a bevel; the punching sleeve (18) is a female die matched with the punching shaft (17).

9. A bending machine with a pneumatic punching mechanism, characterized by comprising the pneumatic punching mechanism (400) according to any one of claims 1 to 8.

10. The bending machine with the pneumatic punching mechanism according to claim 9, further comprising a straightening mechanism (100), a feeding mechanism (200), a slotting mechanism (300) and a bending mechanism (500) which are arranged in sequence, wherein the pneumatic punching mechanism (400) is installed between the slotting mechanism (300) and the bending mechanism (500).

Background

The three-dimensional luminous character is the most common advertisement carrier at present, and the three-dimensional surrounding edge is the most core component. The three-dimensional surrounding edge is formed by processing a long sheet material band according to the requirement through a word bending machine (or a word enclosing machine). In the manufacture of the subsequent three-dimensional luminous characters, the three-dimensional surrounding edge needs to be connected with the bottom plate matched with the three-dimensional surrounding edge in shape through screws, so that holes need to be punched in the material belt in advance. At present, the three-dimensional luminous character surrounding edge is generally punched through manual operation, the punching position is determined according to the appearance of the three-dimensional surrounding edge on the basis of the interference-free principle, and the punching position is generally realized by adopting a pneumatic or electric punching gun or a manual punching clamp. The punching mode needs to mark the punching position on the bottom plate and then punch the hole by manual alignment. Errors are easily generated in the manual marking hole positions, and too large errors easily cause difficulty in later installation and may cause scrapping of finished products and loss; in addition, the manual punching efficiency is low, and the cost is invisibly increased. In a word, manual punching wastes time and labor, and is low in efficiency and high in production cost.

Recently, some automatic punching and enclosing machines are available on the market, for example, publication No. CN 110421060 a discloses an automatic punching and enclosing machine, the punching device adopts a stepping motor, a speed reducer for driving, and a crank connecting rod force-increasing mechanism, and the device has a complex structure and high cost.

Disclosure of Invention

In order to solve the problems of high error, low efficiency, high cost and the like in the manufacturing of the three-dimensional surrounding edge mounting hole of the three-dimensional luminous character, the invention provides the pneumatic punching mechanism and the character bending machine with the pneumatic punching mechanism.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

in a first aspect, the invention provides a pneumatic punching mechanism, which comprises a punching guide sleeve mounting plate, a power mechanism and an actuating mechanism; the power mechanism comprises a cylinder and a punching lever; the actuating mechanism comprises a punching shaft, a punching sleeve, a punching shaft mounting plate, a hinged plate and a punching guide sleeve; the two cylinders are arranged on one side of the punching guide sleeve mounting plate side by side, the output ends of the two cylinders penetrate through the punching guide sleeve mounting plate, the output ends of the two cylinders are connected through a cylinder connecting shaft, and the cylinder connecting shaft is connected with the lower end of the punching lever; the upper end of the punching lever is connected with one side of the punching shaft mounting plate, the middle of the punching lever is hinged with the hinged plate, the hinged plate is fixedly arranged on the other side of the punching guide sleeve mounting plate, the hinged plate vertically penetrates through the punching shaft mounting plate, and the punching shaft mounting plate can slide on the hinged plate; the punching shaft is arranged on the other side of the punching shaft mounting plate, the punching sleeve is arranged in the punching guide sleeve, the punching guide sleeve is arranged on the punching guide sleeve mounting plate, and the punching shaft can move in the punching guide sleeve.

Preferably, the upper end of the punching guide sleeve mounting plate is provided with a clamping groove.

Preferably, a waste material box is arranged on one side of the punching guide sleeve mounting plate, and the bottom of the waste material box is connected with a plastic corrugated pipe through a plastic corrugated pipe joint.

Preferably, loose joint bolts are respectively installed at the output ends of the two air cylinders and are connected through the air cylinder connecting shaft, and the air cylinder connecting shaft penetrates through the lower end of the punching lever and is connected with the lower end of the punching lever.

Preferably, equal-height sleeves are respectively sleeved on the cylinder connecting shafts on the two sides of the lower end of the punching lever.

Preferably, the cylinder is a thin cylinder; two cylinders act together and are provided with two magnetic switches.

Preferably, the upper end of the punching lever is connected with two connecting plate pieces on one side of the punching shaft mounting plate through a first pin shaft, and the first pin shaft penetrates through elliptical holes in the two connecting plate pieces; the middle part of the punching lever is hinged with the hinge plate through a second shaft pin.

Preferably, the punching shaft is a T-shaped punching shaft, and the front end of the punching shaft is an inclined plane; the punching sleeve is a female die matched with the punching shaft.

In a second aspect, the invention further provides a word bending machine with a pneumatic punching mechanism, which comprises the pneumatic punching mechanism in the technical scheme.

Preferably, the pneumatic punching machine further comprises a correcting mechanism, a feeding mechanism, a slotting mechanism and a bending mechanism which are arranged in sequence, and the pneumatic punching mechanism is installed between the slotting mechanism and the bending mechanism.

The invention has the following beneficial effects:

according to the pneumatic punching mechanism and the character bending machine with the same, which are provided by the invention, the pneumatic punching mechanism is an independent mechanism, whether punching is carried out or not can be selected by controlling the air cylinder in the advertisement character processing process, the function of the character bending machine is not influenced, automatic punching can be realized, the structure is simple, the operation is stable and reliable, the efficiency is high, and the cost is low.

The thin cylinder pushes the punching lever to act on the punching shaft by taking the second pin shaft as a shaft, and pushes the punching shaft to act on the punching sleeve to do reciprocating motion so as to realize punching operation on the passing plate. The double-thin cylinder and the punching lever are adopted, so that the requirement on air source pressure is lowered, and the punching operation on the plate is easier to realize. The two magnetic switches control the extension and retraction of the output end of the thin cylinder, so that the condition of inaccurate time control is avoided, and the processing time is saved. And moreover, the pneumatic punching mechanism is convenient in waste treatment, and the waste of punching operation is conveyed to the outside of the machine through a waste material box and a plastic corrugated pipe to be collected in a centralized manner.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention.

FIG. 1 is a perspective view of a pneumatic punching mechanism provided in accordance with an embodiment of the present invention;

FIG. 2 is a front view of a pneumatic punching mechanism provided by an embodiment of the present invention;

FIG. 3 is a top view of a pneumatic punching mechanism provided by an embodiment of the present invention;

FIG. 4 is a left side partial cross-sectional view of a pneumatic punch mechanism provided in accordance with an embodiment of the present invention;

fig. 5 is a perspective view of a bending machine with a pneumatic punching mechanism according to an embodiment of the invention.

Description of reference numerals:

1. a material passing groove; 2. a waste material box; 3. a punching guide sleeve mounting plate; 4. punching a guide sleeve; 5. a punching shaft mounting plate; 6. connecting sheets; 7. a hinge plate; 8. a punching lever; 9. an eye bolt; 10. an equal-height sleeve; 11. a magnetic switch; 12. a cylinder; 13. a spring cotter pin; 14. a second pin shaft; 15. a first pin shaft; 16. bending through the threads; 17. punching a hole shaft; 18. punching a hole sleeve; 19. a plastic corrugated pipe joint; 20. a plastic bellows; 21. a cylinder connecting shaft; 100. a correction mechanism; 200. a feeding mechanism; 300. a grooving mechanism; 400. a pneumatic punching mechanism; 500. a bending mechanism.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The embodiment provides a pneumatic punching mechanism, as shown in fig. 1 to 4, comprising a punching guide sleeve mounting plate 3, a power mechanism and an actuating mechanism; the power mechanism comprises a cylinder 12 and a punching lever 8; the actuating mechanism comprises a punching shaft 17, a punching sleeve 18, a punching shaft mounting plate 5, a hinge plate 7 and a punching guide sleeve 4; the two cylinders 12 are arranged on one side of the punching guide sleeve mounting plate 3 side by side, the output ends of the two cylinders 12 penetrate through the punching guide sleeve mounting plate 3, the output ends of the two cylinders 12 are connected through a cylinder connecting shaft 21, and the cylinder connecting shaft 21 is connected with the lower end of the punching lever 8; the upper end of the punching lever 8 is connected with one side of the punching shaft mounting plate 5, the middle part of the punching lever 8 is hinged with the hinged plate 7, the hinged plate 7 is fixedly arranged on the other side of the punching guide sleeve mounting plate 3, the hinged plate 7 vertically penetrates through the punching shaft mounting plate 5, and the punching shaft mounting plate 5 can slide on the hinged plate 7; the punching shaft 17 is arranged on the other side of the punching shaft mounting plate 5, the punching sleeve 18 is arranged in the punching guide sleeve 4, the punching guide sleeve 4 is arranged on the punching guide sleeve mounting plate 3, and the punching shaft 17 can move in the punching guide sleeve 4.

The cylinder 12 pushes the punching lever 8 to act on the punching shaft 17 by taking the second pin shaft 14 as a shaft, and pushes the punching shaft 17 to act on the punching sleeve 18 to do reciprocating motion so as to realize punching operation on the passing plate.

And a material passing groove 1 is arranged at the upper end of the punching guide sleeve mounting plate 3. And a waste material box 2 is arranged on one side of the punching guide sleeve mounting plate 3, and the bottom of the waste material box is connected with a plastic corrugated pipe 20 through a plastic corrugated pipe joint 19. The waste material of the punching operation is conveyed to the outside of the machine through the waste material box 2 and the plastic corrugated pipe 20 to be collected in a centralized way.

The output ends of the two air cylinders 12 are respectively provided with a loose joint bolt 9, the two loose joint bolts 9 are connected through an air cylinder connecting shaft 21, the air cylinder connecting shaft 21 penetrates through a connecting hole at the lower end of the punching lever 8 and is connected with the lower end of the punching lever 8, and the punching lever 8 is perpendicular to the air cylinder connecting shaft 21. 2 thin cylinders are connected together through a cylinder connecting shaft 21 to synchronously provide power.

The cylinder connecting shafts 21 on the two sides of the lower end of the punching lever 8 are respectively sleeved with equal-height sleeves 10. The punching lever 8 is prevented from moving left and right.

The cylinder 12 is a thin cylinder; the two cylinders 12 act together and are provided with two magnetic switches 11. The cylinder 12 is also provided with a threaded elbow 16 for connection to an air hose. The cylinder 12 provides power for the punching mechanism, the requirement on air source pressure is reduced by adopting the thin cylinder and the punching lever, and the punching operation on the plate is easier to realize. The two magnetic switches 11 control the extension and retraction of the output end of the air cylinder 12, so that the condition of inaccurate time control is avoided, and the processing time is saved.

The upper end of the punching lever 8 is connected with the two connecting plate pieces 6 on one side of the punching shaft mounting plate 5 through a first pin shaft 15, and the first pin shaft 15 penetrates through elliptical holes in the two connecting plate pieces 6; the punching lever 8 is hinged with the hinge plate 7 through a second shaft pin 14 in the middle. The holes of the first pin shaft 15 and the second pin shaft 14 are internally provided with spring split pins 13 to prevent the first pin shaft 15 and the second pin shaft 14 from being separated.

The punching shaft 17 is a T-shaped punching shaft, and the front end of the punching shaft 17 is an inclined plane to enhance punching force; the punching sleeve 18 is a female die matched with the punching shaft 17, has standard size and is easy to replace.

The embodiment also provides a character bending machine with a pneumatic punching mechanism, which comprises the pneumatic punching mechanism 400 in the embodiment. The pneumatic punching mechanism 400 is arranged between the grooving mechanism 300 and the bending mechanism 500.

According to the technical scheme, the embodiment provides a pneumatic punching mechanism and a word bending machine with the same, the pneumatic punching mechanism is an independent mechanism, whether punching is performed or not can be selected through the control cylinder in the advertisement word processing process, the function of a normal word bending machine is not influenced, automatic punching can be achieved, and the automatic word bending machine is simple in structure, stable and reliable in operation, high in efficiency and low in cost. The thin cylinder pushes the punching lever to act on the punching shaft by taking the second pin shaft as a shaft, and pushes the punching shaft to act on the punching sleeve to do reciprocating motion so as to realize punching operation on the passing plate. The double-thin cylinder and the punching lever are adopted, so that the requirement on air source pressure is lowered, and the punching operation on the plate is easier to realize. The two magnetic switches control the extension and retraction of the output end of the air cylinder, so that the condition of inaccurate time control is avoided, and the processing time is saved. And moreover, the pneumatic punching mechanism is convenient in waste treatment, and the waste of punching operation is conveyed to the outside of the machine through a waste material box and a plastic corrugated pipe to be collected in a centralized manner.

The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be construed as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the invention is defined by the claims. In the present invention, the technical solutions described in the embodiments of the present invention or those skilled in the art, based on the teachings of the embodiments of the present invention, design similar technical solutions to achieve the above technical effects within the spirit and the protection scope of the embodiments of the present invention, or equivalent changes and modifications made to the application scope, etc., should still fall within the protection scope covered by the patent of the embodiments of the present invention.