Large-aperture paperboard punching die

Abstract

The utility model relates to the technical field of paperboard punching processing, in particular to a large-aperture paperboard punching die which comprises a lower die plate, a shaping punching body is arranged in the middle of the lower die plate, a suction square box is arranged below the shaping punching body, the bottom end of the lower die plate is fixedly connected with a base, and the bottom end of the lower die plate is fixedly connected with the base. The device comprises a base, a conveying belt is arranged on the base, a suction square box is arranged on the conveying belt, an operation square groove is formed in the position, close to the rear portion, of the middle of the base, a groove is formed in the bottom end face of the operation square groove in a communicating mode, and a vacuum generator is arranged on the inner side of the groove. According to the large-aperture paperboard punching die, after punching processing operation of paper sheets to be processed is completed, paper scraps generated after processing can be drawn out through the suction structure and then conveyed out in time through the conveying belt, and paper scrap taking-out operation is completed in time in cooperation with the whole die; and subsequent normal punching operation of the die can be guaranteed after the die is taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard punching processing, and particularly relates to a large-aperture cardboard punching die. Background Technique

[0002] When punching cardboard or other paper products, a cardboard punching die is a cold punching die for paper products that punches holes by means of pneumatic, electric or manual methods. At the same time, a large-aperture cardboard punching die refers to a die with some punching holes of larger diameters during the punching process, enabling the cardboard to complete efficient punching operations according to specific aperture sizes;

[0003] In the prior art, when using a large-aperture cardboard punching die to perform punching operations on cardboard, generally, the punching operation is achieved by the up-and-down stamping of the punching tool bit. However, considering that the cut paper scraps are also relatively large, if they are not removed in time, these paper scraps will easily get stuck inside the punching holes and affect the subsequent normal punching operations of the die. Therefore, a large-aperture cardboard punching die is proposed for the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a large-aperture cardboard punching die to solve the problem that in the prior art, during the use of a large-aperture cardboard punching die, if the paper scraps are not removed in time, it will affect the subsequent punching operations of the die.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A large-aperture cardboard punching die includes a lower template. A shaping punching hole body is provided at the middle position of the lower template. A suction box is provided below the shaping punching hole body. The bottom end of the lower template is fixedly connected to a base. An operation square groove is provided at the middle and rear position of the base. A groove is communicated with the bottom end surface of the operation square groove. A vacuum generator is provided inside the groove. A conveyor belt is provided behind the vacuum generator. A vacuum suction nozzle is provided at the top of the suction box. First telescopic rods are respectively connected to both sides of the bottom of the suction box.

[0007] Preferably, a punching tool bit body is provided directly above the shaping punching hole body. The top of the punching tool bit body is fixedly connected to an upper template. The outer end of the punching tool bit body and the inner end of the shaping punching hole body are set to be dimensionally consistent.

[0008] Preferably, guide columns are respectively slidably connected to the left and right ends of the upper template. The lower parts of the guide columns penetrate through the lower template and the base and are fixedly connected. The top ends of the guide columns are fixedly connected to a top plate. Second telescopic rods are respectively connected to both sides of the top of the upper template. The cylinder ends of the second telescopic rods are fixedly connected to the top plate.

[0009] Preferably, the inner end of the groove and the outer end of the vacuum generator are adapted in size, the cylinder end of the first telescopic rod penetrates through the inner side of the operation square groove and is fixedly connected to the base, and the groove and the base are integrally formed.

[0010] Preferably, the suction port end of the vacuum suction nozzle extends into the interior of the shaping punching body. There are two groups of the vacuum suction nozzles, with two in each group. The width of the suction box is smaller than the width of the shaping punching body. The base is rotationally connected through a micro motor and a conveyor belt arranged inside, and the conveyor belt is arranged at the rear position of the operation square groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, through the arrangement of the conveyor belt, the suction box, the vacuum generator, the groove, the first telescopic rod and the vacuum suction nozzle, it is convenient for the large-aperture cardboard punching die to, after completing the punching operation on the paper to be processed, first use the suction structure composed of the suction box, the vacuum generator, the groove, the first telescopic rod and the vacuum suction nozzle to extract the paper scraps, and then use the conveyor belt to convey them out in time, cooperating with the whole die to complete the paper scrap removal operation in time. At the same time, this structural design can avoid the problem that the relatively large paper scraps are stuck inside the punching hole and are not easy to take out, and can ensure the normal punching operation of the die in the subsequent process after timely taking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the semi-sectioned internal structure of the lower template of the present utility model;

[0015] Figure 3 is a schematic diagram of the conveyor belt installation structure of the present utility model;

[0016] Figure 4 is a schematic top view structure diagram of the lower template of the present utility model.

[0017] In the figure: 1. Lower template; 2. Shaping punching body; 3. Base; 4. Operation square groove; 5. Suction box; 6. Vacuum generator; 7. Groove; 8. First telescopic rod; 9. Vacuum suction nozzle; 10. Conveyor belt; 11. Punching cutter head body; 12. Upper template; 13. Guide post; 14. Top plate; 15. Second telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0020] A large-aperture cardboard punching die includes a lower template 1. A shaping punching body 2 is provided at the middle position of the lower template 1. A suction box 5 is provided below the shaping punching body 2. The bottom end of the lower template 1 is fixedly connected to a base 3. An operation square groove 4 is provided at the middle and rear position of the base 3. The bottom end surface of the operation square groove 4 is communicated with a groove 7. A vacuum generator 6 is provided inside the groove 7. A conveyor belt 10 is provided behind the vacuum generator 6. A vacuum suction nozzle 9 is provided on the top of the suction box 5. Both sides of the bottom of the suction box 5 are respectively connected with a first telescopic rod 8.

[0021] As Figure 1 and Figure 4 shown, a punching cutter head body 11 is provided directly above the shaping punching body 2. The top of the punching cutter head body 11 is fixedly connected to an upper template 12. The outer end of the punching cutter head body 11 and the inner end of the shaping punching body 2 are set to be dimensionally matched. With this dimensional matching setting, as the punching cutter head body 11 can fit into the inside of the shaping punching body 2, the entire die can complete the corresponding stamping and punching operations; Guide columns 13 are respectively slidably connected to the left and right ends of the upper template 12. The lower parts of the guide columns 13 penetrate through the lower template 1 and the base 3 and are fixedly connected. The top ends of the guide columns 13 are fixedly connected to a top plate 14. Both sides of the top of the upper template 12 are respectively connected with a second telescopic rod 15. The cylinder ends of the second telescopic rods 15 are fixedly connected to the top plate 14. When the upper template 12 is driven by the second telescopic rods 15 to move up and down, the sliding connection and cooperation between the upper template 12 and the guide columns 13 will provide guiding and auxiliary limitation for the entire lifting movement.

[0022] As Figure 1 , Figure 2 and Figure 3As shown, the inner end of the groove 7 and the outer end of the vacuum generator 6 are dimensionally adapted. The cylinder end of the first telescopic rod 8 passes through the inner side of the operation square groove 4 and is fixedly connected to the base 3. The groove 7 and the base 3 are integrally formed. When the vacuum generator 6 moves synchronously with the first telescopic rod 8 during the upward operation, the groove 7 mainly serves to provide a moving space for the vacuum generator 6. The suction port end of the vacuum suction nozzle 9 extends into the interior of the shaping punching body 2. There are two groups of vacuum suction nozzles 9, with two in each group. The width of the suction box 5 is smaller than the width of the shaping punching body 2. The base 3 is rotationally connected through a micro motor and a conveyor belt 10 provided inside. The conveyor belt 10 is arranged at the rear position of the operation square groove 4. After the vacuum suction nozzles 9 are pre-inserted into the interior of the shaping punching body 2, with the generation of the suction force, the entire mold can adsorb and confine the paper scraps through the two groups of vacuum suction nozzles 9, thus facilitating the subsequent rapid removal of the paper scraps from the punching interior by suction.

[0023] Working process: All the electric energy required for the startup and operation of the punching device in the present utility model comes from an external power source. When the large-aperture cardboard punching mold is needed, as the cardboard to be processed is placed flat above the lower template 1, under the guiding and limiting of the guide posts 13, a group of second telescopic rods 15 can be started to drive the upper template 12 and the punching cutter head body 11 to align with the interior of the shaping punching body 2 and perform downward stretching. While enabling the punching cutter head body 11 to be correspondingly inserted into the interior of the shaping punching body 2, it also facilitates the entire mold to utilize the stamping force generated during the stretching process to perform the stamping and punching operation on the cardboard. At the same time, since the relatively large paper scraps generated after stamping and punching will mainly accumulate and fall into the interior of the shaping punching body 2, when these paper scraps need to be processed, with the connection and cooperation of the operation square groove 4 and the groove 7, as the entire mold completes a single punching operation, the entire mold can start a group of first telescopic rods 8 to push the suction box 5 upward, so that the two groups of vacuum suction nozzles 9 can be inserted into the interior of the shaping punching body 2. Under the conduction effect of the suction box 5, the vacuum generator 6 in the startup operation state will start to generate negative pressure suction, and the paper scraps inside the shaping punching body 2 will be adsorbed and confined through the vacuum suction nozzles 9. Then, when a group of first telescopic rods 8 are reset downward, when the suction box 5 and the vacuum suction nozzles 9 with paper scraps drop to a position flush with the conveyor belt 10 and one side end of the paper scraps without adsorption force comes into contact with the conveyor belt 10, the conveyor belt 10 in the startup operation state will transmit the paper scraps from front to back until they can be taken out below the lower template 1, cooperating with the entire mold to quickly remove the paper scraps.

[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large-diameter cardboard punching die, comprising a lower die plate (1), characterized in that: A shaping punching body (2) is provided in the middle of the lower template (1), a suction box (5) is provided below the shaping punching body (2), a base (3) is fixedly connected to the bottom end of the lower template (1), an operating square groove (4) is provided in the middle rear position of the base (3), a groove (7) is connected to the bottom end surface of the operating square groove (4), a vacuum generator (6) is provided on the inner side of the groove (7), a conveyor belt (10) is provided behind the vacuum generator (6), a vacuum nozzle (9) is provided on the top of the suction box (5), and first telescopic rods (8) are respectively connected to the two sides of the bottom of the suction box (5).

2. A large-aperture cardboard punching die according to claim 1, characterized in that: A punching head body (11) is provided directly above the shaped punching body (2), the top of the punching head body (11) is fixedly connected to an upper template (12), and the outer end of the punching head body (11) and the inner end of the shaped punching body (2) are arranged to match each other in size.

3. A large-aperture cardboard punching die according to claim 2, characterized in that: The left and right ends of the upper template (12) are respectively slidably connected with guide columns (13); the lower part of the guide column (13) passes through the lower template (1) and is fixedly connected with the base (3); the top of the guide column (13) is fixedly connected with a top plate (14); the top two sides of the upper template (12) are respectively connected with second telescopic rods (15); the cylinder end of the second telescopic rod (15) and the top plate (14) are fixedly connected.

4. A large-aperture cardboard punching die according to claim 1, characterized in that: The inner end of the groove (7) and the outer end of the vacuum generator (6) are adapted to each other in size, the cylinder end of the first telescopic rod (8) passes through the inner side of the operating square groove (4) and is fixedly connected to the base (3), and the groove (7) and the base (3) are integrally formed.

5. A large-aperture cardboard punching die according to claim 1, characterized in that: The suction end of the vacuum suction nozzle (9) extends into the interior of the shaping punching body (2), and two groups of vacuum suction nozzles (9) are provided in total. The width of the suction box (5) is smaller than the width of the shaping punching body (2). The base (3) is rotatably connected to the conveyor belt (10) via an internal micro motor, and the conveyor belt (10) is provided at the rear of the operating square slot (4).

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