Automatic dismounting device for waste removing ejector pin of flat die cutting machine roller

Abstract

The present application belongs to the technical field of paperboard waste cleaning, and particularly relates to a flat press flat die cutting machine roller waste cleaning ejector pin automatic dismounting device. The flat press flat die cutting machine roller waste cleaning ejector pin automatic dismounting device comprises a waste cleaning ejector pin, characterized in that the waste cleaning ejector pin is installed on a pin hole of a waste cleaning roller, a needle magazine is arranged outside the waste cleaning roller, and an ejector pin pushing mechanism is arranged in the waste cleaning roller. The present application has the beneficial effects that when a batch of paperboard processing is completed, the ejector pins on the waste cleaning roller are automatically put into the magazine under the pushing of the ejector pin remover, and when the next batch of paperboard needs to be processed, the needle pushing cylinders on the ejector pin loader will sequentially install corresponding ejector pins in the waste area, so that the plate loading is rapid, the ejector pins can be reused, the roller has high rigidity, and the waste cleaning problem is completely solved.

Description

(I) Technical Field

[0001] This invention belongs to the field of paperboard waste removal technology, and specifically relates to an automatic disassembly and assembly device for the waste removal ejector pin of a flatbed die-cutting machine. (II) Background Technology

[0002] Cardboard boxes are widely used in cargo packaging and transportation. The cardboard box manufacturing process involves die-cutting and waste removal. Waste removal typically uses a waste removal board, which is time-consuming, requires replacement for each batch, incurs high plate-making costs, and demands strict technical expertise, resulting in significant resource waste. Consequently, this method has not been widely adopted, and waste removal is still largely done manually, which is time-consuming, labor-intensive, and unsuitable for modern production. Therefore, we applied for a patent for our ejector pin waste removal technology, achieving plate-free waste removal and saving considerable manpower and resources. However, the synchronous belt for waste removal lacks rigidity, and loading and unloading the ejector pins still requires manual labor, which is time-consuming and labor-intensive. (III) Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides an automatic disassembly and assembly device for the waste removal ejector pin of a flatbed die-cutting machine roller, which is high in strength, high in efficiency, accurate in positioning, and reusable.

[0004] This invention is achieved through the following technical solution:

[0005] An automatic disassembly and assembly device for the waste removal ejector pin of a flatbed die-cutting machine includes a waste removal ejector pin, characterized in that: the waste removal ejector pin is installed on the pin hole of the waste removal roller, a pin magazine is provided outside the waste removal roller, and an ejector pin ejection mechanism is provided inside the waste removal roller.

[0006] The needle magazine is equipped with a needle-pushing mechanism on its outer side.

[0007] The needle magazine is equipped with a pin positioning block.

[0008] The ejector pin pushing mechanism and the needle magazine are mounted on the base, through which the ball screw passes and a guide shaft passes.

[0009] Hollow shafts are fixedly connected to both sides of the waste removal roller, and the hollow shafts are fixed to the waste removal roller by bolts.

[0010] The ejector pin mechanism is mounted on a movable base, which passes through a rotating lead screw and has a guide rod inside.

[0011] The ejector pin ejection mechanism is an ejector pin ejection cylinder.

[0012] The ejector pin pushing mechanism is an ejector pin pushing cylinder.

[0013] The needle magazine has a needle inlet / outlet on the inner side of its bottom and a needle ejection mechanism inlet on the outer side of its bottom.

[0014] The needle magazine has a needle lifting hole on the front or rear side of the bottom, a lifting plate outside the needle lifting hole, the lifting plate is fixed to the end of the lifting cylinder, the lifting cylinder is fixed to the end of the telescopic cylinder, and the telescopic cylinder is fixed to the side wall of the needle magazine.

[0015] The needle magazine is equipped with an entry / exit positioning block at the bottom. The end of the entry / exit positioning block is hinged to the bottom of the needle magazine, and an entry / exit spring is connected between the outer side of the entry / exit positioning block and the inner wall of the needle magazine.

[0016] The beneficial effects of this invention are: after a batch of paperboard is processed, the ejector pins on the waste removal roller are automatically put into storage under the push of the ejector pin unloader. When the next batch of paperboard needs to be processed, the ejector pin pusher cylinder on the ejector pin loader will install the corresponding ejector pins in the waste area in sequence. This makes the plate loading fast, the ejector pins can be reused, and the roller has high rigidity and strength, thus completely solving the waste removal problem. (iv) Description of the attached drawings

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Appendix Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Appendix Figure 2 This is a side view of the structure of the present invention;

[0020] Appendix Figure 3 This is a schematic diagram of the needle magazine structure of the present invention;

[0021] Appendix Figure 4 This is a schematic diagram of the waste removal ejector pin structure of the present invention;

[0022] Appendix Figure 5 This is a schematic diagram of the installation structure of the inbound / outbound positioning block of the present invention;

[0023] Appendix Figure 6 This is a schematic diagram of the lifting plate mounting structure of the present invention;

[0024] In the diagram, 1 is the waste removal ejector pin, 2 is the waste removal roller, 3 is the pin hole, 4 is the pin magazine, 5 is the ejector pin ejection mechanism, 6 is the ejector pin insertion mechanism, 7 is the ejector pin positioning block, 8 is the base, 9 is the ball screw, 10 is the guide shaft, 11 is the hollow shaft, 12 is the bolt, 13 is the moving seat, 14 is the rotating screw, 15 is the guide rod, 16 is the ejector pin inlet / outlet, 17 is the ejector pin ejection mechanism inlet, 18 is the ejector pin lifting hole, 19 is the lifting plate, 20 is the lifting cylinder, 21 is the telescopic cylinder, 22 is the inlet / outlet positioning block, and 23 is the inlet / outlet spring. (V) Detailed Implementation Methods

[0025] The attached figure illustrates a specific embodiment of the present invention. This embodiment includes a waste removal ejector pin 1, which is mounted on the needle hole 3 of a waste removal roller 2. A needle magazine 4 is located outside the waste removal roller 2, and an ejector pin ejection mechanism 5 is located inside the waste removal roller 2. An ejector pin insertion mechanism 6 is located outside the needle magazine 4. An ejector pin positioning block 7 is located inside the needle magazine 4. The ejector pin insertion mechanism 6 and the needle magazine 4 are mounted on a base 8, through which a ball screw 9 passes, and a guide shaft 10 passes inside the base 8. Hollow shafts 11 are fixedly connected to both sides of the waste removal roller 2, and the hollow shafts 11 are fixed to the waste removal roller 2 by bolts 12. The ejector pin ejection mechanism 5 is mounted on a movable base 13, through which a rotating screw 14 passes, and a guide rod 15 passes inside the movable base 13. The ejector pin ejection mechanism 5 is an ejector pin ejection cylinder. The ejector pin insertion mechanism 6 is an ejector pin insertion cylinder. An ejector pin inlet / outlet 16 is located on the inner side of the bottom of the needle magazine 4, and an ejector pin ejection mechanism inlet 17 is located on the outer side of the bottom of the needle magazine 4. The needle magazine 4 has a pin lifting hole 18 on the front or rear side of its bottom. A lifting plate 19 is provided outside the pin lifting hole 18. The lifting plate 19 is fixed to the end of the lifting cylinder 20, which is fixed to the end of the telescopic cylinder 21. The telescopic cylinder 21 is fixed to the side wall of the needle magazine 4. An entry / exit positioning block 22 is provided at the bottom of the needle magazine 4. The end of the entry / exit positioning block 22 is hinged to the bottom of the needle magazine 4. An entry / exit spring 23 connects the outer side of the entry / exit positioning block 22 to the inner wall of the needle magazine 4. A cavity is opened inside the base 8, and a cylinder is placed inside the cavity. The cylinder's extension and retraction drive the bridge plate, serving as a bridge for the installation and removal of the waste pin 1, allowing the waste pin 1 to smoothly enter and exit the magazine.

[0026] The automatic removal and assembly device for waste removal ejector pins on a flatbed die-cutting machine roller according to the present invention requires the removal of waste removal ejector pins 1 from the waste removal roller 2 before processing another batch of cartons of different sizes and shapes after the first batch of cartons has been processed. When removing the waste removal ejector pins 1, rotating the lead screw 14 drives the moving seat 13 to move laterally to any position on the waste removal roller 2. Inside the waste removal roller 2, the ejector pin inlet / outlet 16 of the needle magazine 4 is aligned with the waste removal ejector pin 1 and the piston rod of the ejector pin ejection cylinder. As the waste removal roller 2 rotates, the ejector pin ejection cylinder can push the waste removal ejector pin 1 from any position on the waste removal roller 2 away from the needle hole 3. When the waste removal ejector pin 1 is ejected, it enters the ejector pin inlet / outlet 16 of the needle magazine 4. The needle magazine 4 is connected to a telescopic cylinder 21, which, via a lifting cylinder 20, drives a lifting plate 19 to extend into the ejector pin lifting hole 18 and insert it below the waste removal ejector pin 1. The lifting cylinder 20 then moves the lifting plate 19 upward, pushing the waste removal ejector pin 1 into the ejector pin positioning block 7. Then, the next waste removal ejector pin 1 is pushed into the needle magazine 4, the lifting plate 19 is pulled out, and it is inserted again below the bottommost waste removal ejector pin 1, simultaneously lifting both waste removal ejector pins 1 and pushing them into the ejector pin positioning block 7. This process is repeated to remove all waste removal ejector pins 1 and arrange them sequentially within the needle magazine 4. During the removal of the waste removal ejector pins 1, the ball screw 9 rotates, causing the base 8 to move laterally, which in turn moves the needle magazine 4 laterally. After all the waste removal pins 1 are removed, the position of the waste removal pins 1 on the waste removal roller 2 is determined according to the position of the waste paper edge of the new batch of cardboard. Similarly, the rotation of the ball screw 9 drives the base 8 and the pin magazine 4 to reach any horizontal position. The waste removal roller 2 rotates itself, so that the pin hole 3 of the waste removal roller 2 used to insert the waste removal pins 1 corresponds to the pin inlet / outlet 16. The pin pushing cylinder is activated, and its piston rod passes through the pin ejection mechanism inlet 17, pushing the bottom waste removal pin 1 in the pin magazine 4 out of the pin inlet / outlet 16 and inserting it into the pin hole 3 of the waste removal roller 2. The waste removal pins 1 above will fall down in sequence. In this way, the waste removal pins 1 are pushed into the required pin holes 3 of the waste removal roller 2 one by one. The waste removal pins 1 forming a new array correspond to the waste paper edge of the new batch of cardboard. As the cardboard moves, the waste removal pins 1 are inserted into the waste paper edge. The waste removal pins 1 rotate with the waste removal roller 2 to remove the waste paper edge from the cardboard. When the waste removal ejector pin 1 is pushed into the needle magazine 4, the waste removal ejector pin 1 pushes the two entry and exit positioning blocks 22 outward. After the waste removal ejector pin 1 enters, under the action of the entry and exit spring 23, the two entry and exit positioning blocks 22 swing inward to prevent the ejector pin push-out mechanism 5 or machine vibration from taking the waste removal ejector pin 1 out of the needle magazine 4.When the ejector cylinder 6 needs to push the waste removal ejector pin 1 outward, the piston rod of the ejector cylinder moves forward, and the distance between the inner sides of the two inlet / outlet positioning blocks 22 becomes smaller and smaller. As the piston rod of the ejector cylinder moves forward, it pushes the two inlet / outlet positioning blocks 22 outward, so that the front ends of the two inlet / outlet positioning blocks 22 open, allowing the waste removal ejector pin 1 to smoothly disengage from the needle magazine 4. After the piston rod of the ejector cylinder retracts, under the action of the inlet / outlet spring 23, the two outlet positioning blocks 22 swing inward again to position the falling waste removal ejector pin 1. When the die-cut cardboard passes over the waste removal roller 2, the waste removal ejector pin 1 installed on the waste removal roller 2 inserts into the waste paper edge. As the cardboard moves and the waste removal ejector pin 1 rotates, the waste paper edge is removed from the cardboard, completing the waste removal process. When a batch of cardboard boxes is finished and another batch of cardboard boxes of different sizes and shapes is to be replaced, the waste removal pin 1 that does not correspond to the waste paper edge of this batch of cardboard should be removed, and then the waste removal pin 1 should be reinstalled at the position of the waste removal roller 2 that corresponds to the waste paper edge of this batch of cardboard.

Claims

1. An automatic disassembly and assembly device for the waste removal ejector pin of a flatbed die-cutting machine, comprising a waste removal ejector pin (1), characterized in that: The waste removal pin (1) is installed on the pin hole (3) of the waste removal roller (2). The waste removal roller (2) is provided with a needle magazine (4) outside and a pin ejection mechanism (5) inside. The needle magazine (4) is provided with a pin lifting hole (18) on the front or rear side of the bottom. The pin lifting hole (18) is provided with a lifting plate (19) outside. The lifting plate (19) is fixed to the end of the lifting cylinder (20). The lifting cylinder (20) is fixed to the end of the telescopic cylinder (21). The telescopic cylinder (21) is fixed to the side wall of the needle magazine (4).

2. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: The needle magazine (4) is provided with a needle pushing mechanism (6) on the outside.

3. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: The needle magazine (4) is equipped with a needle positioning block (7).

4. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 2, characterized in that: The pin insertion mechanism (6) and the needle magazine (4) are mounted on the base (8), the base (8) passes through the ball screw (9), and the guide shaft (10) passes through the base (8).

5. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: Hollow shafts (11) are fixedly connected to both sides of the waste removal roller (2), and the hollow shafts (11) and the waste removal roller (2) are fixed together by bolts (12).

6. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: The ejector pin mechanism (5) is mounted on the movable seat (13), which passes through the rotating screw (14) and has a guide rod (15) inside.

7. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: The ejector pin ejection mechanism (5) is an ejector pin ejection cylinder, and the ejector pin insertion mechanism (6) is an ejector pin insertion cylinder.

8. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: The needle magazine (4) has a needle inlet / outlet (16) on the inner side of its bottom and a needle ejection mechanism inlet (17) on the outer side of its bottom.

9. The automatic disassembly and assembly device for the waste removal ejector pin of the flatbed die-cutting machine according to claim 1, characterized in that: The needle magazine (4) is provided with an entry / exit positioning block (22) at the bottom. The end of the entry / exit positioning block (22) is hinged to the bottom of the needle magazine (4). An entry / exit spring (23) is connected between the outer side of the entry / exit positioning block (22) and the inner wall of the needle magazine (4).

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