Automatic dismounting device for waste removing top pin of carton processing paperboard

Abstract

The present application belongs to the technical field of packaging carton processing, and particularly relates to a paperboard waste cleaning and ejector pin automatic dismounting device for paper carton processing. The paperboard waste cleaning and ejector pin automatic dismounting device comprises a waste cleaning belt provided with ejector pins, and is characterized in that: a plurality of needle libraries are arranged on the inner side of the waste cleaning belt, and an ejector pin pushing mechanism is arranged on the inner side of the needle libraries. The paperboard waste cleaning and ejector pin automatic dismounting device has the beneficial effects that: when a batch of paperboards is processed, the ejector pins on the waste cleaning belt are automatically pushed into the needle libraries by the ejector pin remover, and when the next batch of paperboards needs to be processed, the ejector pin pushing cylinders on the ejector pin loader will sequentially load corresponding ejector pins in the waste area, so that the plate loading is rapid, the ejector pins can be reused, and the waste cleaning problem is completely solved.

Description

Technical Field

[0001] This invention belongs to the field of packaging carton processing technology, and specifically relates to an automatic disassembly and assembly device for waste removal pins in carton processing. Background Technology

[0002] Cardboard boxes are widely used in cargo packaging and transportation. The cardboard box manufacturing process involves die-cutting and waste removal. The waste removal process typically uses waste removal boards, which is time-consuming, requires replacement for each batch, incurs high board 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 have applied for a patent for ejector pin waste removal technology, achieving plate-free waste removal and saving considerable manpower and resources. However, loading and unloading the ejector pins still requires manual labor, which is time-consuming and labor-intensive. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this invention provides an automatic disassembly and assembly device for cleaning waste pins in cardboard box processing that is simple in structure, highly efficient, accurately positioned, and reusable.

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

[0005] An automatic disassembly and assembly device for cleaning ejector pins in cardboard processing includes a cleaning belt for mounting ejector pins, characterized in that: the inner side of the cleaning belt is provided with a plurality of pin magazines, and the inner side of the pin magazines is provided with an ejector pin ejection mechanism.

[0006] The outer side of the waste removal zone is equipped with a push-in mechanism.

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

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

[0009] The ejector pin pushing mechanism is mounted on a movable base, which passes through a rotating lead screw and has a guide rod inside.

[0010] The ejector pin ejection mechanism is an ejector pin ejection cylinder.

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

[0012] The needle magazine has a needle inlet on the upper outer side, a needle outlet on the lower outer side, and a needle ejection mechanism inlet on the lower inner side.

[0013] The needle magazine has an insertion positioning block at the top, and the end of the insertion positioning block is hinged to the ejector pin positioning block. An insertion spring is connected between the outer side of the insertion positioning block and the inner wall of the needle magazine.

[0014] The needle magazine has an exit positioning block at the bottom, with the end of the exit positioning block hinged to the bottom of the needle magazine, and an exit spring connecting the outer side of the exit positioning block to the inner wall of the needle magazine.

[0015] The beneficial effects of this invention are: after a batch of cardboard is processed, the ejector pins on the waste removal belt are automatically put into storage under the push of the ejector pin unloader. When the next batch of cardboard needs to be processed, the ejector pin pusher cylinder on the ejector pin installer will install the corresponding ejector pins in the waste area in sequence. This makes the plate loading quick, the ejector pins can be reused, and the waste removal problem is completely solved. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Appendix Figure 1 This is a schematic diagram of the main structure of the present invention;

[0018] Appendix Figure 2 This is a side view of the structure of the present invention;

[0019] Appendix Figure 3 This is a schematic diagram of the needle magazine structure of the present invention;

[0020] Appendix Figure 4 This is a schematic diagram of the ejector pin structure of the present invention;

[0021] Appendix Figure 5 This is a schematic diagram of the inner surface structure of the waste removal belt of the present invention;

[0022] Appendix Figure 6 This is a schematic diagram of the installation structure of the warehousing positioning block of the present invention;

[0023] Appendix Figure 7 This is a schematic diagram of the installation structure of the outbound positioning block of the present invention;

[0024] In the diagram, 1 is the ejector pin, 2 is the waste removal belt, 3 is the needle magazine, 4 is the ejector pin ejection mechanism, 5 is the ejector pin insertion mechanism, 6 is the ejector pin positioning block, 7 is the base, 8 is the ball screw, 9 is the guide shaft, 10 is the moving seat, 11 is the rotating screw, 12 is the guide rod, 13 is the ejector pin inlet, 14 is the ejector pin outlet, 15 is the ejector pin ejection mechanism inlet, 16 is the inlet positioning block, 17 is the inlet spring, 18 is the outlet positioning block, 19 is the outlet spring, and 20 is the needle hole. Detailed Implementation

[0025] The attached figure illustrates a specific embodiment of the present invention. This embodiment includes a waste removal belt 2 on which ejector pins 1 are mounted. Several needle magazines 3 are located inside the waste removal belt 2, and ejector pin ejection mechanisms 4 are located inside the needle magazines 3. An ejector pin insertion mechanism 5 is located outside the waste removal belt 2. An ejector pin positioning block 6 is located inside the needle magazines 3. The ejector pin ejection mechanism 4 and the needle magazines 3 are mounted on a base 7, through which a ball screw 8 passes, and a guide shaft 9 passes. The ejector pin insertion mechanism 5 is mounted on a movable seat 10, through which a rotating screw 11 passes, and a guide rod 12 passes. The ejector pin ejection mechanism 4 is an ejector pin ejection cylinder. The ejector pin insertion mechanism 5 is an ejector pin insertion cylinder. An ejector pin inlet 13 is located on the upper outer side of the needle magazines 3, an ejector pin outlet 14 is located on the lower outer side of the needle magazines 3, and an ejector pin ejection mechanism inlet 15 is located on the lower inner side of the needle magazines 3. The needle magazine 3 has an insertion positioning block 16 at the top, with its end hinged to the ejector pin positioning block 6. An insertion spring 17 connects the outer side of the insertion positioning block 16 to the inner wall of the needle magazine 3. The needle magazine 3 has an exit positioning block 18 at the bottom, with its end hinged to the bottom of the needle magazine 3. An exit spring 19 connects the outer side of the exit positioning block 18 to the inner wall of the needle magazine 3.

[0026] The automatic assembly and disassembly device for cleaning cardboard ejector pins in cardboard processing according to the present invention requires the removal of ejector pins 1 from the cleaning belt 2 of the previous batch of cardboard boxes before cleaning another batch of cardboard boxes of different sizes and shapes after the first batch of cardboard boxes has been processed. When removing ejector pins 1, rotating the screw 11 rotates the moving seat 10 to move laterally to any position laterally on the cleaning belt 2. Inside the cleaning belt 2, the ejector pin inlet 13 of the needle magazine 3 is on a straight line perpendicular to the mounting plane of ejector pin 1, along with ejector pin 1 and the piston rod of the ejector pin pushing cylinder. As the cleaning belt 2 rotates, the ejector pin pushing cylinder can push ejector pins 1 at any position on the cleaning belt 2 away from the cleaning belt 2. When ejector pin 1 is pushed down, it enters the ejector pin inlet 13 of the needle magazine 3. As ejector pin 1 enters the needle magazine 3, it falls along the ejector pin positioning block 6 under its own gravity, and the ejector pins 1 are arranged vertically in the needle magazine 3 one by one. A certain space is left above the ejector pin positioning block 6 for the ejector pin 1 to slide in horizontally, and a certain space is left below the ejector pin positioning block 6 for the ejector pin 1 to slide out horizontally. During the process of removing the ejector pin 1, the ball screw 8 rotates, which can move the base 7 laterally, thereby driving the needle magazine 3 to move laterally. After all the ejector pins 1 are removed, the position of the ejector pin 1 on the waste removal belt 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 8 can drive the base 7 and the needle magazine 3 to reach any horizontal position. The waste removal belt 2 itself rotates, so that the needle hole 20 used to insert the ejector pin 1 on the waste removal belt 2 can be aligned with the ejector pin outlet 14. The ejector pin ejection cylinder is activated, and its piston rod passes through the ejector pin ejection mechanism inlet 15, pushing the bottommost ejector pin 1 in the needle magazine 3 out of the ejector pin outlet 14 and inserting it into the needle hole 20 of the waste removal belt 2. The ejector pins 1 above will fall down in sequence. In this way, the ejector pins 1 are pushed into the required needle holes 20 of the waste removal belt 2 one by one. The ejector pins 1 forming the new array correspond to the waste paper edges of the new batch of cardboard. As the cardboard moves, the ejector pins 1 insert into the waste paper edges. The ejector pins 1 rotate with the waste removal belt 2, removing the waste paper edges from the cardboard. When the ejector pins 1 are pushed into the needle magazine 3, they push the two insertion positioning blocks 16 outward. After the ejector pins 1 enter, under the action of the insertion spring 17, the two insertion positioning blocks 16 swing inward to prevent the ejector pins 1 from being pulled out of the needle magazine 3 by the ejector pin pushing mechanism 5 or due to machine vibration. The ejector pin 1, falling into the bottom of the needle magazine 3, will not be dislodged from the magazine 3 due to machine vibrations because of the limiting effect of the two ejector positioning blocks 18. When the ejector pin ejection mechanism 4 needs to eject the ejector pin 1 outward, the piston rod of the ejector pin ejection cylinder moves forward, and the distance between the inner sides of the two ejector positioning blocks 18 becomes smaller and smaller. As the piston rod of the ejector pin ejection cylinder moves forward, it pushes the two ejector positioning blocks 18 outward, so that the front ends of the two ejector positioning blocks 18 open, allowing the ejector pin 1 to smoothly exit the needle magazine 3. After the piston rod of the ejector pin ejection cylinder retracts, under the action of the ejector spring 19, the two ejector positioning blocks 18 swing inward again to position the falling ejector pin 1. When the die-cut cardboard passes over the waste removal belt 2, the waste removal ejector pin 1 installed on the waste removal belt 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 made, the waste removal pins that do not correspond to the waste paper edges of this batch of cardboard should be removed, and then the waste removal pins should be reinstalled at the waste removal belt positions corresponding to the waste paper edges of this batch of cardboard.

Claims

1. An automatic disassembly and assembly device for waste removal pins in cardboard processing, comprising a waste removal belt (2) for mounting pins (1), characterized in that: The waste removal belt (2) is provided with several needle magazines (3) on the inner side, a needle ejection mechanism (4) is provided on the inner side of the needle magazine (3), a needle push-in mechanism (5) is provided on the outer side of the waste removal belt (2), a needle inlet (13) is provided on the upper outer side of the needle magazine (3), a needle outlet (14) is provided on the lower outer side of the needle magazine (3), a needle ejection mechanism inlet (15) is provided on the lower inner side of the needle magazine (3), an exit positioning block (18) is provided at the bottom of the needle magazine (3), the end of the exit positioning block (18) is hinged to the bottom of the needle magazine (3), and an exit spring (19) is connected between the outer side of the exit positioning block (18) and the inner wall of the needle magazine (3).

2. The automatic disassembly and assembly device for waste removal pins in cardboard processing according to claim 1, characterized in that: The needle magazine (3) is equipped with a needle positioning block (6).

3. The automatic disassembly and assembly device for waste removal pins in cardboard processing according to claim 1, characterized in that: The ejector pin mechanism (4) and the needle magazine (3) are mounted on the base (7), the base (7) passes through the ball screw (8), and the base (7) has a guide shaft (9) inside.

4. The automatic disassembly and assembly device for waste removal pins in cardboard processing according to claim 1, characterized in that: The ejector pin pushing mechanism (5) is mounted on the movable seat (10), the movable seat (10) passes through the rotating screw (11), and a guide rod (12) passes through the movable seat (10).

5. The automatic disassembly and assembly device for waste removal pins in cardboard processing according to claim 1, characterized in that: The ejector pin ejection mechanism (4) is an ejector pin ejection cylinder.

6. The automatic disassembly and assembly device for waste removal pins in cardboard processing according to claim 1, characterized in that: The ejector pin pushing mechanism (5) is an ejector pin pushing cylinder.

7. The automatic disassembly and assembly device for waste removal pins in cardboard processing according to claim 1, characterized in that: The needle magazine (3) is provided with an insertion positioning block (16) at the top. The end of the insertion positioning block (16) is hinged to the pin positioning block (6). An insertion spring (17) is connected between the outer side of the insertion positioning block (16) and the inner wall of the needle magazine (3).

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