Plastic bag punching device

Abstract

The utility model provides a plastic bag punching device. Relates to the technical field of plastic bag production and discloses a plastic bag punching device which comprises a pneumatic puncher, an air cylinder is fixedly installed on the pneumatic puncher, an adapter block is fixedly installed on an output rod of the air cylinder, a connecting pipe is installed at the bottom of the adapter block in a threaded mode, and an extension pipe is fixedly installed on one side of the connecting pipe. A through hole is formed in the pneumatic puncher, the through hole is matched with the connecting pipe, a circular groove is formed in the bottom of the pneumatic puncher, a rotating plate is rotationally installed in the circular groove, four supporting arms are fixedly installed at the bottom of the rotating plate, and the four supporting arms are each slidably sleeved with a hanging lug; and two collecting boxes are arranged below the pneumatic hole puncher. The plastic bag disc collecting device has the advantages that the operation is convenient and fast, redundant plastic bag discs in the round holes can be rapidly collected, and the subsequent step of collecting the plastic bag discs is omitted.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production, in particular to a plastic bag punching device. Background Art

[0002] Plastic bags are bags made of plastic as the main raw material. They are indispensable items in people's daily lives and are often used to package various items. They are widely used because of their low price, extremely light weight, large capacity, and easy storage. Plastic bags are used as packaging belts. In order to ensure the safety of use, release the air in the bag, facilitate hanging, open and preserve freshness, it is usually necessary to punch holes in specific positions of the plastic bags. In order to ensure the efficiency of plastic bag punching, it is necessary to use special punching equipment. Pneumatic punchers are one of the most common plastic punching settings.

[0003] Traditionally, during the use of a pneumatic hole punch, the excess plastic bag discs taken out from the round holes cannot be specially collected. After being separated from the round holes, they are usually scattered randomly, which affects the working environment and is not convenient for subsequent cleaning of the collection box.

[0004] Therefore, it is necessary to provide a new plastic bag punching device to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a plastic bag punching device which is easy to operate, can quickly collect redundant plastic bag discs in a round hole, and saves the subsequent step of collecting the plastic bag discs.

[0006] To solve the above technical problems, the plastic bag punching device provided by the utility model includes: a pneumatic puncher, on which a cylinder is fixedly installed, a transfer block is fixedly installed on the output rod of the cylinder, a connecting pipe is threadedly installed at the bottom of the transfer block, an extension pipe is fixedly installed on one side of the connecting pipe, a passage hole is arranged on the pneumatic puncher, the passage hole is adapted to the connecting pipe, a circular groove is formed at the bottom of the pneumatic puncher, a rotating plate is rotatably installed in the circular groove, four support arms are fixedly installed at the bottom of the rotating plate, hanging ears are slidably sleeved on the four support arms respectively, two collecting boxes are arranged below the pneumatic puncher, the four hanging ears are respectively fixedly connected to both sides of the two collecting boxes, side blocks are fixedly installed on both sides of the connecting pipe, a connecting plate is slidably sleeved on the connecting pipe, two screw rods are threadedly installed on the connecting plate, the two screw rods are respectively slidably connected to the two side blocks, a longitudinal rod is slidably installed on the connecting plate, a nut is threadedly installed on the longitudinal rod, a sleeve block is fixedly sleeved on the longitudinal rod, a spring is sleeved on the longitudinal rod, a lower pressing plate is fixedly installed at the bottom end of the longitudinal rod, a through hole is formed in the lower pressing plate, the through hole is adapted to the connecting pipe, an air pump is arranged on the pneumatic puncher, a hose is fixedly installed at the air outlet of the air pump, and one end of the hose away from the air pump is fixedly connected to one end of the extension pipe away from the connecting pipe.

[0007] Preferably, a rubber pad is fixedly installed on the top of the lower pressing plate, and the rubber pad is adapted to the connecting pipe.

[0008] Preferably, two annular blocks are fixedly sleeved on the connecting pipe, and the two annular blocks are respectively located at the top and bottom of the connecting plate.

[0009] Preferably, an activity groove is formed on one side of the connecting plate, the two side blocks are both located in the activity groove, and the connecting pipe is slidably installed in the activity groove.

[0010] Preferably, an installation groove is formed at the bottom of the transfer block, threads are arranged on the inner wall of the installation groove, and the connecting pipe is threadedly connected to the inner wall of the installation groove.

[0011] Preferably, an annular groove is formed on the rotating plate, a limiting block is fixedly installed on the inner wall of the circular groove, and the limiting block is rotatably installed in the annular groove.

[0012] Compared with the related art, the plastic bag punching device provided by the utility model has the following

[0013] Beneficial effects:

[0014] In the present utility model, two collection boxes are arranged below the pneumatic hole puncher. By using the two collection boxes alternately, the redundant plastic bag discs pressed out by the connecting pipe can be collected, thus automatically completing the collection and preventing the plastic discs from falling randomly. In addition, the gas generated by the air pump can push the discs, ensuring that the discs accurately fall into the corresponding collection boxes, preventing blockage of the connecting pipe. Manually adjusting the rotating plate can swap the positions of the two collection boxes, facilitating the alternate use of the collection boxes. During the movement of the connecting pipe, the lower pressing plate is driven, and through the lower pressing plate, the plastic bag to be punched can be firmly pressed, preventing the plastic bag from shifting during the punching process and affecting the punching accuracy. Description of the Drawings

[0015] Figure 1 Schematic diagram of the three-dimensional structure of a preferred embodiment of the plastic bag punching device provided by the present utility model;

[0016] Figure 2 Schematic diagram of the side view structure of the present utility model;

[0017] Figure 3 For Figure 2 Enlarged schematic diagram of the lower pressing plate shown in

[0018] Figure 4 Schematic diagram of the front view sectional structure of the present utility model;

[0019] Figure 5 For Figure 4 Enlarged schematic diagram of the connecting plate and the lower pressing plate shown in

[0020] Figure 6 Schematic diagram of the top view sectional structure of the connecting plate in the present utility model;

[0021] Figure 7 For Figure 6 Enlarged schematic diagram of the connecting plate shown in

[0022] Figure 8 Schematic diagram of the bottom view sectional structure of the collection box in the present utility model;

[0023] Figure 9 Schematic diagram of the bottom view assembly of the rotating plate and the support arm in the present utility model;

[0024] Figure 10 Schematic diagram of the side view assembly of the hanging ear and the collection box in the present utility model.

[0025] Reference numerals in the figures: 1, pneumatic punch; 2, cylinder; 3, adapter block; 4, connecting pipe; 5, extension pipe; 6, through hole; 7, circular groove; 8, rotating plate; 9, support arm; 10, hanging ear; 11, collection box; 12, side block; 13, screw; 14, connecting plate; 15, longitudinal rod; 16, nut; 17, sleeve block; 18, spring; 19, lower pressing plate; 20, through hole for passing through; 21, air pump; 22, hose. Detailed implementation mode

[0026] The present invention will be further described below in conjunction with the drawings and the implementation mode.

[0027] Please refer to Figures 1-10 , in which Figure 1 is a schematic three-dimensional structure diagram of a preferred embodiment of the plastic bag punching device provided by the present invention; Figure 2 is a schematic side view structure diagram of the present invention; Figure 3 is Figure 2 an enlarged schematic diagram of the lower pressing plate shown in Figure 4 is a schematic front sectional view structure diagram of the present invention; Figure 5 is Figure 4 an enlarged schematic diagram of the connecting plate and the lower pressing plate shown in Figure 6 is a schematic top sectional view structure diagram of the connecting plate in the present invention; Figure 7 is Figure 6 an enlarged schematic diagram of the connecting plate shown in Figure 8 is a schematic bottom sectional view structure diagram of the collection box in the present invention; Figure 9 is a schematic bottom assembly diagram of the rotating plate and the support arm in the present invention; Figure 10This is a schematic side view assembly diagram of the hanging ear and the collection box in the present utility model. The plastic bag punching device includes: a pneumatic punch 1, the model of the pneumatic punch 1 is lk009, a cylinder 2 is fixedly installed on the pneumatic punch 1, a transfer block 3 is fixedly installed on the output rod of the cylinder 2, an installation groove is opened at the bottom of the transfer block 3, a connecting pipe 4 is threadedly installed in the installation groove on the transfer block 3, an extension pipe 5 is fixedly installed on one side of the connecting pipe 4, a through hole 6 is provided on the pneumatic punch 1, and the through hole 6 is used for the up and down sliding passage of the connecting pipe 4, the through hole 6 is adapted to the connecting pipe 4, a circular groove 7 is opened at the bottom of the pneumatic punch 1, a rotating plate 8 is rotatably installed in the circular groove 7, four support arms 9 are fixedly installed at the bottom of the rotating plate 8, the four support arms 9 are distributed in a rectangular array, hanging ears 10 are slidably sleeved on the four support arms 9 respectively, two collection boxes 11 are arranged below the pneumatic punch 1, a plurality of ventilation holes are opened on the two collection boxes 11, the four hanging ears 10 are respectively fixedly connected to both sides of the two collection boxes 11, side blocks 12 are fixedly installed on both sides of the connecting pipe 4, clamping grooves are opened on one side of the two side blocks 12 away from each other, a connecting plate 14 is slidably sleeved on the connecting pipe 4, an activity groove is opened on one side of the connecting plate 14, two screw rods 13 are threadedly installed on the connecting plate 14, one ends of the two screw rods 13 close to each other are respectively slidably connected to the inner walls of the two clamping grooves on the two side blocks 12, the two side blocks 12 are both located in the activity groove, the connecting pipe 4 is slidably installed in the activity groove, a longitudinal rod 15 is slidably installed on the connecting plate 14, a thread is provided at a position close to the top of the longitudinal rod 15, a nut 16 is threadedly installed at the top of the longitudinal rod 15, the bottom of the nut 16 is in contact with the top of the connecting plate 14, a sleeve block 17 is fixedly sleeved on the longitudinal rod 15, a spring 18 is sleeved on the longitudinal rod 15, the top and bottom of the spring 18 are respectively in contact with the bottom of the connecting plate 14 and the top of the sleeve block 17, a lower pressing plate 19 is fixedly installed at the bottom of the longitudinal rod 15, a rubber pad is fixedly installed on the top of the lower pressing plate 19, the rubber pad is adapted to the connecting pipe 4, a through hole 20 is opened on the lower pressing plate 19, the through hole 20 is adapted to the connecting pipe 4, an air pump 21 is provided on the pneumatic punch 1, a hose 22 is fixedly installed at the air outlet of the air pump 21, and one end of the hose 22 away from the air pump 21 is fixedly connected to one end of the extension pipe 5 away from the connecting pipe 4.

[0028] In order to support the connecting plate 14 and facilitate determining the position between the connecting pipe 4 and the connecting plate 14, in this way, two annular blocks are fixedly sleeved on the connecting pipe 4, and the two annular blocks are respectively located at the top and bottom of the connecting plate 14.

[0029] In order to prevent the rotating plate 8 from falling off from the circular groove 7, in this way, an annular groove is opened on the rotating plate 8, and a limiting block is fixedly installed on the inner wall of the circular groove 7, and the limiting block is rotatably installed in the annular groove.

[0030] The working principle of the plastic bag punching device provided by the present utility model is as follows:

[0031] When punching a plastic bag, the two collecting boxes 11 are fixed to the bottom of the pneumatic punch 1 through the cooperation of four support arms 9 and four hanging ears 10. After the plastic bag to be punched is sorted out, it will slide in the material passing groove on the pneumatic punch 1. Adjust the position of the plastic bag so that the position where the plastic bag needs to be punched is aligned with the passing hole 6. Then start the cylinder 2. The output rod of the cylinder 2 will gradually extend outwards, drive the connecting pipe 4 to move downwards through the adapter block 3. During the movement of the connecting pipe 4, it will drive the connecting plate 14, and the connecting plate 14 will drive the lower pressing plate 19 through the longitudinal rod 15. Driven by the connecting pipe 4, the lower pressing plate 19 will gradually approach the plastic bag and contact the plastic bag prior to the connecting pipe 4. When the lower pressing plate 19 contacts the plastic bag, the connecting pipe 4 will continue to move downwards. At this time, the lower pressing plate 19 will be subjected to an upward resistance. Due to the cooperation of the sleeve block 17, the connecting plate 14 will squeeze the spring 18 under the drive of the connecting pipe 4, causing it to deform until the bottom end of the connecting plate 14 passes through the through hole 20 and extends into the passing hole 6, and a round hole will be pressed out of the plastic bag by the connecting pipe 4.

[0032] Immediately afterwards, the air pump 21 will be started. The air pump 21 will inject gas into the connecting pipe 4 through the hose 22 and the extension pipe 5. In this way, the redundant plastic sheet originally located in the round hole and pressed out by the connecting pipe 4 will be blown out and fall into the collecting box 11 on the left, thus completing the automatic collection of the plastic sheet and preventing the plastic sheet from being scattered everywhere. After punching is completed, the air pump 21 will be automatically turned off. Then the cylinder 2 is started again to drive the connecting pipe 4 and the lower pressing plate 19 to gradually move upwards for the next round of punching. During subsequent use, if one of the collecting boxes 11 needs to be cleaned after being filled, just rotate the rotating plate 8 to swap the positions of the two collecting boxes 11, so that the other empty collecting box 11 can continue to hold the plastic sheets, and the collecting box 11 filled with plastic sheets can be easily slid off from the corresponding two support arms 9. In addition, if the spring 18 needs to be replaced due to a decrease in its elastic force during subsequent use, just rotate the nut 16 off the longitudinal rod 15, and then the longitudinal rod 15 can be slid off the connecting plate 14, so that the spring 18 can be replaced relatively quickly. The connecting pipe 4 is connected to the adapter block 3 in a threaded form and can also be replaced as needed, and the operation is relatively convenient.

[0033] Compared with the related technology, the plastic bag punching device provided by the present utility model has the following

[0034] Beneficial effects:

[0035] In the present utility model, two collection boxes 11 are provided below the pneumatic punch 1. By using the two collection boxes 11 alternately, the redundant plastic bag circular pieces pressed out by the connecting pipe 4 can be collected, so as to automatically complete the collection and prevent the plastic circular pieces from falling randomly. In addition, the gas generated by the air pump 21 can push the circular pieces, ensuring that the circular pieces accurately fall into the corresponding collection box 11, preventing the connecting pipe 4 from being blocked. Manually adjusting the rotating plate 8 can swap the positions of the two collection boxes 11, facilitating the alternate use of the collection boxes 11. During the movement of the connecting pipe 4, the lower pressing plate 19 is driven, and through the lower pressing plate 19, the plastic bag to be punched can be firmly pressed, preventing the plastic bag from deviating during the punching process and affecting the punching accuracy.

[0036] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly obtained.

[0037] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A plastic bag punching device, comprising: Pneumatic punch, characterized in that a cylinder is fixedly installed on the pneumatic punch, a transfer block is fixedly installed on the output rod of the cylinder, a connecting pipe is threadedly installed at the bottom of the transfer block, an extension pipe is fixedly installed on one side of the connecting pipe, a through hole is arranged on the pneumatic punch, the through hole is adapted to the connecting pipe, a circular groove is opened at the bottom of the pneumatic punch, a rotating plate is rotatably installed in the circular groove, four support arms are fixedly installed at the bottom of the rotating plate, hanging ears are slidably sleeved on the four support arms, two collecting boxes are arranged below the pneumatic punch, the four hanging ears are respectively fixedly connected to both sides of the two collecting boxes, side blocks are fixedly installed on both sides of the connecting pipe, a connecting plate is slidably sleeved on the connecting pipe, two screw rods are threadedly installed on the connecting plate, the two screw rods are respectively slidably connected to the two side blocks, a longitudinal rod is slidably installed on the connecting plate, a nut is threadedly installed on the longitudinal rod, a sleeve block is fixedly sleeved on the longitudinal rod, a spring is sleeved on the longitudinal rod, a lower pressing plate is fixedly installed at the bottom end of the longitudinal rod, a through hole is opened on the lower pressing plate, the through hole is adapted to the connecting pipe, an air pump is arranged on the pneumatic punch, a hose is fixedly installed at the air outlet of the air pump, and one end of the hose away from the air pump is fixedly connected to one end of the extension pipe away from the connecting pipe.

2. The plastic bag punching device according to claim 1, wherein, A rubber pad is fixedly installed on the top of the lower pressing plate, and the rubber pad is adapted to the connecting pipe.

3. The plastic bag punching device according to claim 1, characterized in that, Two annular blocks are fixedly sleeved on the connecting pipe, and the two annular blocks are respectively located at the top and bottom of the connecting plate.

4. The plastic bag punching device according to claim 1, wherein, An activity groove is opened on one side of the connecting plate, the two side blocks are both located in the activity groove, and the connecting pipe is slidably installed in the activity groove.

5. The plastic bag punching device according to claim 1, characterized in that, An installation groove is opened at the bottom of the transfer block, threads are arranged on the inner wall of the installation groove, and the connecting pipe is threadedly connected to the inner wall of the installation groove.

6. The plastic bag punching device according to claim 1, characterized in that, An annular groove is opened on the rotating plate, a limiting block is fixedly installed on the inner wall of the circular groove, and the limiting block is rotatably installed in the annular groove.

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