Punching device of bag making machine

Abstract

The utility model relates to the technical field of bag making machines, in particular to a punching device of a bag making machine, which comprises a working plate, the top of the working plate is connected with a U-shaped plate, the top of the U-shaped plate is provided with a driving mechanism, the driving mechanism extends to the top of the inner wall of the U-shaped plate, the driving mechanism is provided with a locking mechanism, and after a bag is placed on the top of the working plate, the bag is locked by the locking mechanism. The four-sample punching head can be driven to descend to punch a bag through the locking mechanism by starting the driving mechanism, and then locking of the four-sample punching head can be relieved by pushing the locking mechanism. At the moment, the four-sample punching head is rotated, the hole diameter needing to be punched is aligned to the top of the working plate, then the locking mechanism is loosened, the four-sample punching head can be locked again, and therefore the adjustment of the hole diameter of the punched bag is completed, the hole diameter of the punched bag can be conveniently switched through the device, and the punching head with the corresponding hole diameter does not need to be replaced for punching; and the complex operation in the dismounting and replacing process is reduced, so that the bag punching efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag-making machines, in particular to a hole punching device for a bag-making machine. Background Technique

[0002] Environmentally friendly plastic bags are the general term for various biodegradable plastic bags. With the development of technology, various materials that can replace traditional PE plastics have emerged, including high-molecular materials such as PLA, PHAs, PBA, and PBS, all of which can replace traditional PE plastic bags. A bag-making machine is a machine for making various plastic packaging bags or packaging bags of other materials. Its processing range is packaging bags of various sizes, thicknesses, and specifications made of plastic or other materials. A hole punching device will be installed on the bag-making machine to punch holes in the produced packaging bags.

[0003] At present, there are still some deficiencies in the traditional hole punching device of the bag-making machine. Since the specifications of the punching heads on the hole punching device of the bag-making machine are fixed, when plastic bags need to be punched with holes of different diameters, it is necessary for workers to disassemble and replace the punching heads, which is time-consuming and laborious, thus reducing the efficiency of punching holes in plastic bags. For this reason, we propose a hole punching device for a bag-making machine. Content of the Utility Model

[0004] Based on the deficiencies in the prior art mentioned in the above background technique, the present utility model provides a hole punching device for a bag-making machine.

[0005] The present utility model overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A hole punching device for a bag-making machine, comprising: a working plate, a U-shaped plate is connected to the top of the working plate, a driving mechanism is arranged on the top of the U-shaped plate and extends to the top of the inner wall of the U-shaped plate, a locking mechanism is arranged on the driving mechanism, a four-piece punching head is connected to the locking mechanism, the locking mechanism is used to lock the four-piece punching head, the driving mechanism is used to drive the four-piece punching head to move up and down through the locking mechanism, and two fixing mechanisms are arranged on the driving mechanism, and the two fixing mechanisms are used to fix the bag-making machine.

[0007] As a further solution of the present utility model: the driving mechanism includes a cylinder, a connecting plate and two vertical plates, the cylinder is connected to the top of the U-shaped plate, and the output end of the cylinder extends to the top of the inner wall of the U-shaped plate, the connecting plate is connected to the output end of the cylinder, and the two vertical plates are respectively connected to both sides of the bottom of the connecting plate.

[0008] As a further solution of the utility model: The locking mechanism includes a fixed rod, two connecting plates, two pulling plates, two first springs, two inserting rods and two inserting holes. The fixed rod is fixedly connected between the two vertical plates, and the four-hole punching head is rotatably connected to the outer surface of the fixed rod. The two connecting plates are respectively connected to the adjacent surfaces of the two vertical plates. The two pulling plates are both slidably connected to the outer surface of the fixed rod. One ends of the two first springs are respectively connected to the adjacent surfaces of the two connecting plates, and the other ends of the two first springs are respectively connected to the opposite surfaces of the two pulling plates. The two inserting rods are respectively connected to the adjacent surfaces of the two pulling plates. The two inserting holes are opened on both sides of the four-hole punching head.

[0009] As a further solution of the utility model: The two first springs are both located on the outer surface of the fixed rod, and the two inserting rods are respectively inserted into the two inserting holes movably.

[0010] As a further solution of the utility model: The fixing mechanism includes two telescopic rods, a fixing plate and two second springs. The two telescopic rods are both connected to the bottom of the connecting plate. The fixing plate is connected to the bottoms of the two telescopic rods. The two second springs are both connected to the tops of the connecting plate and the fixing plate.

[0011] As a further solution of the utility model: The two second springs are respectively located on the outer surfaces of the two telescopic rods.

[0012] As a further solution of the utility model: A plurality of bases are connected to the bottom of the working plate.

[0013] After adopting the above structure, compared with the prior art, the utility model has the following advantages:

[0014] 1. The output end of the starting cylinder drives the vertical plate to descend through the connecting plate, so that the locking mechanism drives the four-hole punching head to descend to the top of the working plate to punch holes in the bag. Pull the two pulling plates to slide on the outer surface of the fixed rod and drive the two inserting rods to withdraw from the two inserting holes to release the locking of the four-hole punching head. And the two first springs will be compressed. Rotate the four-hole punching head to face the corresponding punching head towards the top of the working plate. Release the two pulling plates, and the two first springs will reset and drive the two inserting rods to re-insert into the two inserting holes to lock the four-hole punching head to complete the adjustment of the punching size required for the bag. This enables the device to conveniently switch the punching diameter, without replacing the punching head with the corresponding aperture for punching, reducing the complex operations in the disassembly and replacement process, thereby improving the punching efficiency of the device for the bag.

[0015] 2. While the connecting plate descends, the fixed plate is driven by two telescopic rods to descend to the top of the working plate to press the bag. At the same time, the two telescopic rods will be squeezed to contract and the two second springs will be compressed. After the punching is completed, the connecting plate rises and the two second springs will reset and the two telescopic rods will extend. As a result, after the four punching heads are no longer in contact with the bag, the fixed plate will rise to release the fixation of the bag, avoiding the situation where the four punching heads adhere to the bag. This enables the device to press and punch the bag to prevent the bag from moving, and at the same time, it can prevent the four punching heads from adhering to the bag after punching, thus avoiding affecting the punching efficiency of the device for the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the structure of the driving mechanism of the present invention;

[0018] Figure 3 is a schematic diagram of the structure of the locking mechanism of the present invention;

[0019] Figure 4 is a schematic diagram of the position of the jack;

[0020] Figure 5 is a schematic diagram of the structure of the fixing mechanism of the present invention.

[0021] In the figure: 1, working plate; 2, U-shaped plate; 3, driving mechanism; 301, cylinder; 302, connecting plate; 303, vertical plate; 4, locking mechanism; 401, fixed rod; 402, connecting plate; 403, pulling plate; 404, first spring; 405, inserting rod; 406, jack; 5, four-hole punching head; 6, fixing mechanism; 601, telescopic rod; 602, fixed plate; 603, second spring; 7, base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1:

[0024] Please refer to Figures 1 to 5, in the embodiment of the present utility model, a bag-making machine punching device includes: a working plate 1, a U-shaped plate 2 is connected to the top of the working plate 1, a driving mechanism 3 is arranged on the top of the U-shaped plate 2, and the driving mechanism 3 extends to the top of the inner wall of the U-shaped plate 2. A locking mechanism 4 is arranged on the driving mechanism 3, and a four-sample punching head 5 is connected to the locking mechanism 4. The locking mechanism 4 is used to lock the four-sample punching head 5, and the driving mechanism 3 is used to drive the four-sample punching head 5 to move up and down through the locking mechanism 4. Two fixing mechanisms 6 are arranged on the driving mechanism 3, and the two fixing mechanisms 6 are used to fix the bag-making machine.

[0025] Specifically, after placing the bag on the top of the working plate 1, starting the driving mechanism 3 can drive the four-sample punching head 5 to descend through the locking mechanism 4 to punch the bag. Then, by pushing the locking mechanism 4, the locking of the four-sample punching head 5 can be released. At this time, rotate the four-sample punching head 5 to align the aperture to be punched with the top of the working plate 1, and then release the locking mechanism 4 to re-lock the four-sample punching head 5 to complete the adjustment of the punching aperture of the bag. When the driving mechanism 3 drives the four-sample punching head 5 to descend through the locking mechanism 4, the driving mechanism 3 will drive the two fixing mechanisms 6 to descend to the top of the working plate 1 and squeeze the bag to fix the bag and then contract. After that, when the driving mechanism 3 drives the four-sample punching head 5 to rise and no longer contact the bag, the two fixing mechanisms 6 will rise with the driving mechanism 3, thus avoiding the situation of adhesion between the four-sample punching head 5 and the bag.

[0026] Embodiment 2:

[0027] Please refer to Figures 2 to 4, in the embodiment of the present utility model, a bag-making machine punching device, the driving mechanism 3 includes a cylinder 301, a connecting plate 302 and two vertical plates 303. The cylinder 301 is connected to the top of the U-shaped plate 2, and the output end of the cylinder 301 extends to the top of the inner wall of the U-shaped plate 2. The connecting plate 302 is connected to the output end of the cylinder 301. The two vertical plates 303 are respectively connected to both sides of the bottom of the connecting plate 302. The locking mechanism 4 includes a fixed rod 401, two connecting plates 402, two pulling plates 403, two first springs 404, two inserting rods 405 and two inserting holes 406. The fixed rod 401 is fixedly connected between the two vertical plates 303, and the four-hole punching head 5 is rotatably connected to the outer surface of the fixed rod 401. The two connecting plates 402 are respectively connected to the adjacent surfaces of the two vertical plates 303. The two pulling plates 403 are both slidably connected to the outer surface of the fixed rod 401. One ends of the two first springs 404 are respectively connected to the adjacent surfaces of the two connecting plates 402, and the other ends of the two first springs 404 are respectively connected to the opposite surfaces of the two pulling plates 403. The two inserting rods 405 are respectively connected to the adjacent surfaces of the two pulling plates 403. The two inserting holes 406 are opened on both sides of the four-hole punching head 5. The two first springs 404 are both located on the outer surface of the fixed rod 401. The two inserting rods 405 are respectively movably inserted into the two inserting holes 406.

[0028] Specifically, when the cylinder 301 is started, the output end drives the vertical plates 303 to descend through the connecting plate 302, so that the locking mechanism 4 drives the four-hole punching head 5 to descend to the top of the working plate 1 to punch the bag. Pull the two pulling plates 403 to slide on the outer surface of the fixed rod 401 and drive the two inserting rods 405 to withdraw from the two inserting holes 406 to release the locking of the four-hole punching head 5, and the two first springs 404 will be compressed. Rotate the four-hole punching head 5 to face the corresponding punching head towards the top of the working plate 1. Release the two pulling plates 403, and the two first springs 404 will reset to drive the two inserting rods 405 to re-insert into the two inserting holes 406 to lock the four-hole punching head 5, completing the adjustment of the punching size required for the bag, thereby improving the punching efficiency of the device for the bag.

[0029] Embodiment 3:

[0030] Please refer to Figures 1 to 5 , in the embodiment of the present utility model, a bag-making machine punching device, the fixing mechanism 6 includes two telescopic rods 601, a fixing plate 602 and two second springs 603. The two telescopic rods 601 are both connected to the bottom of the connecting plate 302. The fixing plate 602 is connected to the bottom of the two telescopic rods 601. The two second springs 603 are both connected to the tops of the connecting plate 302 and the fixing plate 602. The two second springs 603 are respectively located on the outer surfaces of the two telescopic rods 601. A plurality of bases 7 are connected to the bottom of the working plate 1.

[0031] Specifically, while the connecting plate 302 descends, it drives the fixed plate 602 to descend to the top of the working plate 1 through two telescopic rods 601 to press the bag. At the same time, it will squeeze the two telescopic rods 601 to contract and compress the two second springs 603. After the punching is completed, the connecting plate 302 rises and the two second springs 603 will reset and the two telescopic rods 601 will extend, so that the four - type punching head 5 and the bag are no longer in contact before the fixed plate 602 rises to release the fixation of the bag, avoiding adhesion between the four - type punching head 5 and the bag when the four - type punching head 5 rises. The stability of the device during operation can be improved by setting multiple bases 7.

[0032] The working principle of the present utility model is as follows: During use, place the bag on the top of the working plate 1 and at the bottom of the four - type punching head 5. At this time, start the cylinder 301. The output end of the cylinder 301 drives the vertical plate 303 to descend through the connecting plate 302, so as to drive the four - type punching head 5 to descend to the top of the working plate 1 through the locking mechanism 4 to punch the bag. When it is necessary to change the punching size, the staff pulls the two pull plates 403. The two pull plates 403 slide on the outer surface of the fixed rod 401 respectively, so as to drive the two insertion rods 405 to withdraw from the inside of the two insertion holes 406 to release the locking of the four - type punching head 5. At the same time, the two first springs 404 will be compressed. At this time, rotate the four - type punching head 5. Face the corresponding punching head towards the top of the working plate 1. Release the two pull plates 403, and the two first springs 404 will reset and drive the two insertion rods 405 to re - insert into the inside of the two insertion holes 406, so as to lock the four - type punching head 5 again, completing the adjustment of the punching size required for the bag. While the connecting plate 302 descends, the connecting plate 302 drives the fixed plate 602 to descend to the top of the working plate 1 through two telescopic rods 601 to press the bag. At the same time, it will squeeze the two telescopic rods 601 to contract and compress the two second springs 603. After the bag punching is completed, the connecting plate 302 rises. At the same time, the two second springs 603 will reset and the two telescopic rods 601 will extend, so that after the four - type punching head 5 and the bag are no longer in contact, the fixed plate 602 will rise to release the fixation of the bag, avoiding the situation of adhesion between the four - type punching head 5 and the bag when the four - type punching head 5 rises.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above - mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model.

Claims

1. A punching device for a bag-making machine, characterized in that, Comprising: A working plate (1), a U-shaped plate (2) is connected to the top of the working plate (1), a driving mechanism (3) is arranged at the top of the U-shaped plate (2), and the driving mechanism (3) extends to the top of the inner wall of the U-shaped plate (2). A locking mechanism (4) is arranged on the driving mechanism (3), a four-specification punching head (5) is connected to the locking mechanism (4), the locking mechanism (4) is used for locking the four-specification punching head (5), the driving mechanism (3) is used for driving the four-specification punching head (5) to move up and down through the locking mechanism (4), and two fixing mechanisms (6) are arranged on the driving mechanism (3), and the two fixing mechanisms (6) are used for fixing the bag-making machine.

2. The punching device of a bag-making machine according to claim 1, characterized in that, The driving mechanism (3) includes a cylinder (301), a connecting plate (302) and two vertical plates (303). The cylinder (301) is connected to the top of the U-shaped plate (2), and the output end of the cylinder (301) extends to the top of the inner wall of the U-shaped plate (2). The connecting plate (302) is connected to the output end of the cylinder (301), and the two vertical plates (303) are respectively connected to both sides of the bottom of the connecting plate (302).

3. The punching device of a bag-making machine according to claim 2, characterized in that, The locking mechanism (4) includes a fixing rod (401), two connecting plates (402), two pulling plates (403), two first springs (404), two inserting rods (405) and two inserting holes (406). The fixing rod (401) is fixedly connected between the two vertical plates (303), and the four-specification punching head (5) is rotatably connected to the outer surface of the fixing rod (401). The two connecting plates (402) are respectively connected to the adjacent surfaces of the two vertical plates (303). The two pulling plates (403) are both slidably connected to the outer surface of the fixing rod (401). One ends of the two first springs (404) are respectively connected to the adjacent surfaces of the two connecting plates (402), and the other ends of the two first springs (404) are respectively connected to the opposite surfaces of the two pulling plates (403). The two inserting rods (405) are respectively connected to the adjacent surfaces of the two pulling plates (403), and the two inserting holes (406) are opened on both sides of the four-specification punching head (5).

4. A bag-making machine punching device according to claim 3, wherein The two first springs (404) are both located on the outer surface of the fixing rod (401), and the two inserting rods (405) are respectively movably inserted into the two inserting holes (406).

5. The punching device of a bag-making machine according to claim 4, characterized in that, The fixing mechanism (6) includes two telescopic rods (601), a fixing plate (602) and two second springs (603). The two telescopic rods (601) are both connected to the bottom of the connecting plate (302), the fixing plate (602) is connected to the bottom of the two telescopic rods (601), and the two second springs (603) are both connected to the tops of the connecting plate (302) and the fixing plate (602).

6. The punching device for a bag-making machine according to claim 5, characterized in that, The two second springs (603) are respectively located on the outer surfaces of the two telescopic rods (601).

7. A bag-making machine punching device according to claim 6, characterized in that, A plurality of bases (7) are connected to the bottom of the working plate (1).

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