CN220946929U - A paste structure for corrugated box - Google Patents

Abstract

The utility model relates to the technical field of corrugated cartons and discloses a pasting structure for corrugated cartons, which comprises a workbench and is characterized in that three storage boxes are arranged at the top of the workbench and are respectively used for placing paperboards, placing corrugations and spraying glue, a push plate device is arranged in front of the left side of the workbench, a moving device is jointly arranged between the workbench and the three storage boxes, and a plate discharging device is arranged at the rear side of the moving device. Through setting up No. two sliding trays, no. four fixed plates, no. one sliding tray, place the board, no. two fixed plates, no. two fixed strips, promote groove and export groove just can play spacing fixed effect to No. four fixed plates and place the board, promote groove and export groove can be better discharge corrugated case, and the workstation can also play spacing fixed effect to No. two fixed plates and No. two fixed strips, convenient to use, simple structure.

Description

A paste structure for corrugated box

Technical Field

The utility model belongs to the technical field of corrugated cartons, and particularly relates to a pasting structure for corrugated cartons.

Background

The corrugated board is manufactured into the corrugated paper box through die cutting, nailing or sticking. Corrugated cartons are the most widely used packaging products, and the dosage is always the first of various packaging products. Including calcium plastic corrugated cartons. For over half a century, corrugated cartons gradually replaced transport packaging containers such as wooden cartons with excellent usability and good processability, and became the main force of transport packaging. It not only protects commodity, is convenient for storage, transportation, but also plays the role of beautifying commodity and propaganda commodity. The corrugated case belongs to an environment-friendly product, which is favorable for environmental protection and loading, unloading and transportation.

However, the corrugated case making machine in the prior art needs to manually place the paper boards and then paste the paper boards, so that the working efficiency is extremely low, time and labor are wasted, a great deal of manpower resources and working time are consumed, and a paste structure for corrugated cases is needed to be automatically produced.

The present utility model has been made in view of this.

Disclosure of utility model

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

The utility model provides a paste structure for corrugated box, includes the workstation, its characterized in that, the top of workstation is provided with three storage tank, and three storage tank is used for placing the cardboard respectively, places the flute and spouts and put glue, and the left side the place ahead of workstation is provided with a push pedal device, is provided with a mobile device jointly between workstation and the three storage tank, and mobile device's rear side is provided with a play board device, and fixed mounting has a No. six fixed plates on the place ahead bottom wall of workstation, and a track is installed to the lantern ring on the lateral wall of No. six fixed plates, and fixed mounting has a plurality of No. three teeth of a cogwheel on the lateral wall of track, and fixed mounting has a positive and negative rotation motor on the left side bottom wall of No. six fixed plates, and positive and negative rotation motor's output is fixed connection with No. six fixed plates's left side bottom.

As a preferred embodiment of the utility model, a second fixing plate is fixedly arranged at the bottom position in front of the storage box in an integrated mode, four first fixing strips are fixedly arranged at the rear side of the second fixing plate at equal intervals, and one second fixing strip is fixedly arranged at one end, far away from the second fixing plate, of each of the four first fixing strips.

As a preferred embodiment of the utility model, the mobile device comprises a third fixed plate, a fourth fixed plate is fixedly arranged at the top of the third fixed plate, a placing plate is fixedly arranged at the top of the fourth fixed plate, the placing plate is U-shaped, a plurality of second gear teeth are fixedly arranged on the front side wall surface of the third fixed plate, a fifth fixed plate is fixedly arranged on the rear side of the third fixed plate, and an outlet groove is formed above the fifth fixed plate.

As a preferred embodiment of the utility model, the mobile device further comprises two baffles, the two baffles are respectively arranged at the upper positions of the left side and the right side of the third fixing plate, one ends of the two baffles, which are close to the fifth fixing plate, are in a protruding state, the protruding ends of the two baffles are fixedly connected with the fifth fixing plate, the two baffles are respectively arranged above the outlet groove, and the two baffles are further arranged between the four first fixing strips and the three storage boxes.

As a preferred embodiment of the utility model, a first sliding groove is formed in the top center position of the workbench, a second sliding groove is formed in the bottom center position of the first sliding groove, a fourth fixing plate is clamped in the cavity of the second sliding groove, a placing plate is clamped in the cavity of the first sliding groove, a pushing groove is formed in the front and the rear of the left side of the workbench, and the second fixing plate and the second fixing strip are fixedly arranged on the top wall surface of the workbench.

As a preferred implementation mode of the utility model, the push plate device comprises a first fixing plate, wherein the first fixing plate is U-shaped, a gear groove is formed in the position of the left side and the right side of the front of the top wall surface of the first fixing plate, a first gear is arranged in each cavity of the two gear grooves, a first motor is fixedly arranged at the top of each of the two first gears, the first motors are arranged on the left side wall surface and the right side wall surface of the front of the top of the first fixing plate, the output ends of the two first motors penetrate through the top wall surface of the first fixing plate, and the two first gears are fixedly arranged on the output ends of the two first fixing plates;

The top position department is provided with a push plate in the intracavity of fixed plate, all fixed mounting has a plurality of gear teeth No. one on the lateral wall face in the place ahead of push plate, the gear tooth No. one of both sides all meshes with a gear wheel of corresponding each other.

As a preferred embodiment of the utility model, the plate discharging device comprises four No. seven fixing plates, wherein the four No. seven fixing plates are fixedly arranged on the rear side wall surface of the No. five fixing plates, two No. seven fixing plates which are vertically opposite are arranged on the left side and the right side of the rear of the No. five fixing plates, and a No. four gear is fixedly arranged on the side wall surface, close to each other, of the No. seven fixing plates which are mutually opposite on the left side and the right side;

A rotating rod is fixedly installed between the two gears on the upper side, a rotating rod is fixedly installed between the two gears on the lower side, the two gears on the left side are meshed with each other, the two gears on the right side are meshed with each other, a motor number two is fixedly installed on a side wall surface, far away from the rotating rod, of the fixing plate number seven on the upper left side, and the motor number two penetrates through the fixing plate number seven on the upper left side and is fixedly connected with the gears on the upper left side.

Compared with the prior art, the utility model has the following beneficial effects:

1. Through setting up, storage tank, track, no. six fixed plates, positive and negative rotation motor, workstation, push pedal device, mobile device and play board device, the cardboard can be placed to the storage tank, places the flute and spouts and put glue, and push pedal device can release the corrugated case of accomplishing with placing, and mobile device can remove corrugated case, goes out the board device and can make things convenient for corrugated case's taking out, and track, no. six fixed plates and positive and negative rotation motor then can make mobile device remove, convenient to use, simple structure.

2. Through setting up No. three fixed plates, no. four fixed plates, exit slot, no. five fixed plates, place board and No. two teeth of a cogwheel, no. three fixed plates and No. four fixed plates can mutually support with the workstation and play spacing fixed effect to placing the board, place the top wall of board and can place corrugated case, the U-shaped shape of placing the board can be better plays spacing fixed effect to corrugated case, exit slot and No. five fixed plates can make corrugated case paste together that can be better when discharging, convenient to use, simple structure, the practicality is strong.

3. Through setting up No. two sliding trays, no. four fixed plates, no. one sliding tray, place the board, no. two fixed plates, no. two fixed strips, promote groove and export groove just can play spacing fixed effect to No. four fixed plates and place the board, promote groove and export groove can be better discharge corrugated case, and the workstation can also play spacing fixed effect to No. two fixed plates and No. two fixed strips, convenient to use, simple structure.

4. Through setting up motor, gear, teeth of a cogwheel, push plate, gear groove and fixed plate, when the push plate carries out the direction that is close to the workstation and removes, just can release the flute that the position corresponds, convenient to use, simple structure. Full automation, need not artificial manual and take out corrugated container, practiced thrift a large amount of operating time, labour saving and time saving.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of the table 10 of the present utility model;

fig. 3 is a perspective view of the storage case 11 according to the present utility model;

FIG. 4 is a perspective view of one side placement plate 25 of the present utility model;

FIG. 5 is an enlarged view of the utility model at A in FIG. 4;

Fig. 6 is a perspective view of the other side of the placement plate 25 of the present utility model;

Fig. 7 is a perspective view of a third fixing plate 27 of the present utility model;

fig. 8 is a bottom perspective view of the table 10 of the present utility model.

In the figure: 10. a work table; 11. a storage box; 12. a pushing plate; 13. a baffle; 14. a motor I; 15. a first fixing plate; 16. a gear groove; 17. a first gear; 18. a first gear tooth; 19. a pushing groove; 20. a first sliding groove; 21. a second sliding groove; 22. a second fixing plate; 23. a first fixing strip; 24. a second fixing strip; 25. placing a plate; 26. gear teeth II; 27. a third fixing plate; 28. a fourth fixing plate; 29. an outlet slot; 30. a fifth fixing plate; 31. gear teeth III; 32. a sixth fixing plate; 33. a track; 34. a motor II; 35. a seventh fixing plate; 36. a fourth gear; 37. a rotating lever; 38. and a forward and reverse rotation motor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.

As shown in fig. 1, a pasting structure for corrugated paper boxes comprises a workbench 10, and is characterized in that three storage boxes 11 are arranged at the top of the workbench 10, the three storage boxes 11 are respectively used for placing paperboards, placing corrugations and spraying glue, a push plate device is arranged in front of the left side of the workbench 10, a moving device is jointly arranged between the workbench 10 and the three storage boxes 11, a plate outlet device is arranged on the rear side of the moving device, a sixth fixing plate 32 is fixedly arranged on the wall surface of the bottom of the front side of the workbench 10, a crawler belt 33 is arranged on the lantern ring on the side wall of the sixth fixing plate 32, a plurality of third gear teeth 31 are fixedly arranged on the side wall of the crawler belt 33, a forward and reverse motor 38 is fixedly arranged on the wall surface of the bottom of the left side of the sixth fixing plate 32, and the output end of the forward and reverse motor 38 is fixedly connected with the bottom of the left side of the sixth fixing plate 32.

When the corrugated paper box is specifically used, the storage box 11 can be used for placing paper boards, placing corrugated paper boxes and spraying glue, the push plate device can push out the placed corrugated paper boxes, the moving device can move the corrugated paper boxes, the board discharging device can facilitate taking out of the corrugated paper boxes, and the crawler belt 33, the six-number fixing plate 32 and the forward and backward rotating motor 38 can enable the moving device to move.

Through setting up, storage tank 11, track 33, no. six fixed plates 32, positive and negative rotation motor 38, workstation 10, push pedal device, mobile device and play board device, the cardboard can be placed to storage tank 11, places the flute and spouts and put glue, push pedal device can release the corrugated container that places the completion, mobile device can remove corrugated container, play board device can make things convenient for corrugated container's taking out, track 33, no. six fixed plates 32 and positive and negative rotation motor 38 then can make mobile device remove, convenient to use, simple structure.

As shown in fig. 3, a second fixing plate 22 is fixedly mounted at the bottom of the front of the storage box 11 in an integrally formed manner, four first fixing strips 23 are fixedly mounted at the rear side of the second fixing plate 22 at equal intervals, and a second fixing strip 24 is fixedly mounted at one end, far away from the second fixing plate 22, of the four first fixing strips 23.

When the mobile device is specifically used, the second fixing plate 22, the first fixing strip 23 and the second fixing strip 24 can enable parts of the mobile device to be arranged between the second fixing plate 22, the first fixing strip 23, the second fixing strip 24 and the storage box 11, and can assist in use of the mobile device.

By arranging the second fixing plate 22, the first fixing strip 23 and the second fixing strip 24, the auxiliary effect on the use of the mobile device is achieved, and the auxiliary effect is an integral part of the use of the mobile device.

As shown in fig. 7, the moving device includes a third fixing plate 27, a fourth fixing plate 28 is fixedly mounted on the top of the third fixing plate 27, a placement plate 25 is fixedly mounted on the top of the fourth fixing plate 28, the placement plate 25 is U-shaped, a plurality of second gear teeth 26 are fixedly mounted on the front side wall surface of the third fixing plate 27, a fifth fixing plate 30 is fixedly mounted on the rear side of the third fixing plate 27, and an outlet slot 29 is formed above the fifth fixing plate 30.

When the corrugated paper box is specifically used, the third fixing plate 27 can play a role in limiting and fixing the fourth fixing plate 28 and the placing plate 25, the fourth fixing plate 28 can play a role in limiting and fixing the placing plate 25, corrugated paper boxes can be placed on the top wall surface of the placing plate 25, the fifth fixing plate 30 and the outlet groove 29 can discharge the manufactured corrugated paper boxes, the corrugated paper boxes can be extruded when passing through the outlet groove 29, paper boards and corrugated boards can be better adhered together, and the second gear teeth 26 can be matched with the structure to enable the third fixing plate 27 to move.

Through setting up No. three fixed plates 27, no. four fixed plates 28, export groove 29, no. five fixed plates 30, place board 25 and No. two teeth of a cogwheel 26, no. three fixed plates 27 and No. four fixed plates 28 can mutually support with workstation 10 and play spacing fixed effect to placing board 25, place the top wall of board 25 and can place corrugated case, place the U-shaped shape of board 25 can be better play spacing fixed effect to corrugated case, export groove 29 and No. five fixed plates 30 can make corrugated case paste together that can be better when discharging, and is convenient to use, simple structure, the practicality is strong.

As shown in fig. 6, the moving device further includes two baffles 13, the two baffles 13 are respectively disposed at the upper positions of the left and right sides of the third fixing plate 27, one ends of the two baffles 13, which are close to the fifth fixing plate 30, are in a protruding state, the protruding ends of the two baffles 13 are fixedly connected with the fifth fixing plate 30, the two baffles 13 are disposed above the outlet groove 29, and the two baffles 13 are further disposed between the four first fixing strips 23 and the three storage boxes 11.

When the storage box is specifically used, the two baffles 13 are arranged between the four first fixing strips 23 and the three storage boxes 11 and are also arranged on the left side and the right side of the placement plate 25, the two baffles 13 can block materials when the placement plate 25 moves left and right, after the two baffles 13 leave the bottom of the storage boxes 11, the top wall surface of the placement plate 25 can face the bottom of the storage boxes 11, so that the materials can enter the top wall surface of the placement plate 25, according to the structure, when the output end of the third gear tooth 31 rotates, the sixth fixing plate 32 can rotate, when the sixth fixing plate 32 rotates, the crawler belt 33 and the third gear tooth 31 can rotate, then the second gear tooth 26 meshed with the third gear tooth 31 can move, and when the second gear tooth 26 moves, the moving device can be driven to move.

Through setting up baffle 13, fixed strip 23, storage tank 11, place board 25, no. three teeth of a cogwheel 31, no. six fixed plates 32, track 33 and No. two teeth of a cogwheel 26, just so can make mobile device remove, can also accomplish the operation of placing the material, convenient to use, simple structure.

As shown in fig. 2, a first sliding groove 20 is formed in the top center position of the workbench 10, a second sliding groove 21 is formed in the bottom center position of the first sliding groove 20, a fourth fixing plate 28 is clamped in the cavity of the second sliding groove 21, a placing plate 25 is clamped in the cavity of the first sliding groove 20, a pushing groove 19 is formed in the front and the rear of the left side of the workbench 10, and a second fixing plate 22 and a second fixing strip 24 are fixedly mounted on the top wall surface of the workbench 10.

When the novel corrugated carton is specifically used, the second sliding groove 21 can limit and fix the fourth fixing plate 28, the first sliding groove 20 can limit and fix the placing plate 25, the pushing grooves 19 and the outlet grooves 29 correspond to each other, the corrugated carton can be better discharged, and the workbench 10 can also limit and fix the second fixing plate 22 and the second fixing strip 24.

Through setting up No. two sliding tray 21, no. four fixed plates 28, no. one sliding tray 20, place the board 25, no. two fixed plates 22, no. two fixed strips 24, promote groove 19 and export groove 29 just can play spacing fixed effect to No. four fixed plates 28 and place the board 25, promote groove 19 and export groove 29 can be better with corrugated case discharge, workstation 10 can also play spacing fixed effect to No. two fixed plates 22 and No. two fixed strips 24, convenient to use, simple structure.

As shown in fig. 2, the push plate device includes a first fixing plate 15, the first fixing plate 15 is U-shaped, a gear groove 16 is formed at the front left and right sides of the top wall of the first fixing plate 15, a first gear 17 is disposed in the cavity of the two gear grooves 16, a first motor 14 is fixedly mounted at the top of the two first gears 17, the first motor 14 is disposed on the front left and right sides of the top of the first fixing plate 15, the output ends of the two first motors 14 penetrate through the top wall of the first fixing plate 15, and the two first gears 17 are fixedly mounted on the output ends of the two first fixing plates 15;

A pushing plate 12 is arranged at the top position in the cavity of the first fixing plate 15, a plurality of first gear teeth 18 are fixedly arranged on the left and right side wall surfaces in front of the pushing plate 12, and the first gear teeth 18 on two sides are meshed with the corresponding first gears 17.

When the corrugated pushing device is specifically used, when the output ends of the first motors 14 on the left side and the right side rotate, the rotation of the output ends of the first motors 14 can drive the first gears 17 to rotate, when the first gears 17 rotate, the first gear teeth 18 meshed with the first gears 17 can move, when the first gear teeth 18 in two rows move, the pushing plate 12 can be driven to move, the gear grooves 16 can play a limiting and fixing role on the first gears 17, the first fixing plate 15 can play a limiting and fixing role on the pushing plate 12, and when the pushing plate 12 moves towards the direction of the working table 10, the corrugated pushing plate corresponding to the position can be pushed out.

Through setting up motor 14, gear 17, teeth of a cogwheel 18, push plate 12, gear groove 16 and fixed plate 15, when push plate 12 carries out the direction that is close to workstation 10 and removes, just can release the flute that the position corresponds, convenient to use, simple structure. Full automation, need not artificial manual and take out corrugated container, practiced thrift a large amount of operating time, labour saving and time saving.

As shown in fig. 5, the board discharging device includes four No. seven fixing boards 35, the four No. seven fixing boards 35 are fixedly mounted on the rear side wall surface of the No. five fixing boards 30, two No. seven fixing boards 35 which are vertically opposite are respectively arranged on the left side and the right side of the rear of the No. five fixing boards 30, and a No. four gear 36 is fixedly mounted on a side wall surface, close to each other, of the No. seven fixing boards 35 which are mutually opposite on the left side and the right side;

A rotating rod 37 is fixedly installed between the two gears 36 on the upper side, a rotating rod 37 is fixedly installed between the two gears 36 on the lower side, the two gears 36 on the left side are meshed with each other, the two gears 36 on the right side are meshed with each other, a second motor 34 is fixedly installed on a side wall surface, far from the rotating rod 37, of the seventh fixing plate 35 on the upper left side, and the second motor 34 penetrates through the seventh fixing plate 35 on the upper left side and is fixedly connected with the fourth gears 36 on the upper left side.

When the corrugated paper box pushing device is specifically used, when the output end of the second fixing strip 24 rotates, the rotation of the output end of the second fixing strip 24 can drive the fourth gear 36 on the upper left side to rotate, when the fourth gear 36 on the upper left side rotates, the upper rotating rod 37 and the fourth gear 36 meshed with the upper left side can be driven to rotate, when the fourth gear 36 on the lower left side rotates, the lower rotating rod 37 can be driven to rotate, when the lower rotating rod 37 rotates, the two fourth gears 36 on the right side can be driven to rotate, so that the two rotating rods 37 can rotate in the positive and negative directions, after the corrugated paper box pushing device pushes out the corrugated paper box, the corrugated paper box is not easy to take out due to the tiny outlet grooves 29, the corrugated paper box is clamped between the two rotating rods 37, and then the corrugated paper box is moved through the rotation of the two rotating rods 37, and therefore the corrugated paper box is taken out.

The corrugated case can be conveniently taken out by arranging the second fixing strip 24, the fourth gear 36, the rotating rod 37 and the outlet groove 29, and the corrugated case is convenient to use and simple in structure.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. A paste structure for corrugated box, includes workstation (10), its characterized in that, the top of workstation (10) is provided with three storage tank (11), three storage tank (11) are used for placing the cardboard respectively, place the flute and spout and put glue, the left side the place ahead of workstation (10) is provided with a push pedal device, be provided with a mobile device jointly between workstation (10) and three storage tank (11), mobile device's rear side is provided with a play board device, fixed mounting has a No. six fixed plate (32) on the place ahead bottom wall of workstation (10), a track (33) are installed to the lantern ring on the lateral wall of No. six fixed plate (32), fixed mounting has a plurality of No. three teeth of a cogwheel (31) on the lateral wall of track (33), fixed mounting has a positive and negative rotation motor (38) on the left side bottom wall of No. six fixed plate (32), the output of positive and negative rotation motor (38) is fixed connection with the left side bottom of No. six fixed plate (32).

2. The pasting structure for corrugated paper boxes according to claim 1, wherein a second fixing plate (22) is fixedly mounted at a bottom position in front of the storage box (11) in an integrally formed mode, four first fixing strips (23) are fixedly mounted at the rear side of the second fixing plate (22) at equal intervals, and a second fixing strip (24) is fixedly mounted at one end, far away from the second fixing plate (22), of the four first fixing strips (23).

3. The pasting structure for corrugated paper boxes according to claim 1, wherein the moving device comprises a third fixing plate (27), a fourth fixing plate (28) is fixedly mounted on the top of the third fixing plate (27), a placing plate (25) is fixedly mounted on the top of the fourth fixing plate (28), the placing plate (25) is in a U shape, a plurality of second gear teeth (26) are fixedly mounted on the front side wall surface of the third fixing plate (27), a fifth fixing plate (30) is fixedly mounted on the rear side of the third fixing plate (27), and an outlet groove (29) is formed in the upper portion of the fifth fixing plate (30).

4. The pasting structure for corrugated paper boxes according to claim 1 or 2, wherein the moving device further comprises two baffles (13), the two baffles (13) are respectively arranged at the upper positions of the left side and the right side of the third fixing plate (27), one end, close to the fifth fixing plate (30), of the two baffles (13) is in a protruding state, protruding ends of the two baffles (13) are fixedly connected with the fifth fixing plate (30), the two baffles (13) are respectively arranged above the outlet groove (29), and the two baffles (13) are further arranged between the four first fixing strips (23) and the three storage boxes (11).

5. The pasting structure for corrugated paper boxes according to claim 1, wherein a first sliding groove (20) is formed in the top center position of the workbench (10), a second sliding groove (21) is formed in the bottom center position of the first sliding groove (20), a fourth fixing plate (28) is clamped in the cavity of the second sliding groove (21), a placing plate (25) is clamped in the cavity of the first sliding groove (20), a pushing groove (19) is formed in the front left side and the rear side of the workbench (10), and the second fixing plate (22) and the second fixing strip (24) are fixedly mounted on the top wall surface of the workbench (10).

6. The pasting structure for corrugated paper boxes according to claim 1, wherein the pushing plate device comprises a first fixing plate (15), the first fixing plate (15) is U-shaped, a gear groove (16) is formed in the position of the left side and the right side of the front of the top wall surface of the first fixing plate (15), a first gear (17) is arranged in a cavity of each of the two gear grooves (16), a first motor (14) is fixedly arranged at the top of each of the two first gears (17), the first motors (14) are arranged on the left side wall surface and the right side wall surface of the front of the top of the first fixing plate (15), the output ends of the two first motors (14) penetrate through the top wall surface of the first fixing plate (15), and the two first gears (17) are fixedly arranged on the output ends of the two first fixing plates (15);

A pushing plate (12) is arranged at the top position of the cavity of the first fixing plate (15), a plurality of first gear teeth (18) are fixedly arranged on the left side wall surface and the right side wall surface of the front of the pushing plate (12), and the first gear teeth (18) on two sides are meshed with the corresponding first gears (17).

7. A pasting structure for corrugated paper boxes according to claim 3, wherein the board discharging device comprises four seventh fixing boards (35), the four seventh fixing boards (35) are fixedly installed on the rear side wall surface of the fifth fixing board (30), two seventh fixing boards (35) which are vertically opposite are arranged on the left side and the right side of the rear of the fifth fixing board (30), and a fourth gear (36) is fixedly installed on one side wall surface, close to each other, of the seventh fixing boards (35) which are opposite to each other on the left side and the right side;

A rotating rod (37) is fixedly installed between the two gears (36) at the upper part, a rotating rod (37) is fixedly installed between the two gears (36) at the lower part, the two gears (36) at the left side are meshed with each other, the two gears (36) at the right side are meshed with each other, a motor (34) is fixedly installed on a side wall surface, far away from the rotating rod (37), of a fixed plate (35) at the upper left side, and the motor (34) penetrates through the fixed plate (35) at the upper left side and is fixedly connected with the gear (36) at the upper left side.