A kind of plastic packaging bag processing is used to open the hole device

Abstract

The utility model provides a kind of opening air hole device for plastic packaging bag processing, it is related to the field of plastic packaging bag processing, and it includes: rack, one end of rack is equipped with conveying groove, conveying groove is equipped with conveying belt, the top of conveying belt is equipped with two guide plates, one end of two guide plates is equipped with pressure roller, the scheme, through drive assembly, guide plate, pressure roller and elastic component form double positioning structure, drive assembly can pass through drive motor, two-way screw rod, first sliding block and first sliding slot, the spacing of two guide plates is accurately adjusted to adapt to different width packaging bag, avoid lateral deviation when conveying;Pressure roller is always elastically compressed packaging bag under the action of spring, second sliding block, second sliding slot and support of elastic component, prevent up and down to move, double positioning ensures that packaging bag is stable in position when punching, effectively reduce the hole position dislocation, spacing uneven phenomenon when continuous processing into roll plastic film, improve packaging bag appearance and service performance.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging bag processing, and in particular to a device for opening vent holes in plastic packaging bag processing. Background Technology

[0002] Plastic packaging bags are widely used in the packaging of food, daily necessities, and industrial products due to their advantages such as being lightweight, waterproof, and low-cost. During the processing of some plastic packaging bags (such as food preservation bags and express delivery cushioning bags), ventilation holes are required to allow air to pass through, preventing moisture buildup inside the bag from causing product spoilage, or preventing the packaging bags from bulging or breaking due to pressure differences between the inside and outside during stacking and transportation.

[0003] Currently, the commonly used ventilation hole opening devices in plastic packaging bag processing have many shortcomings and cannot meet the needs of efficient and precise production. On the one hand, traditional ventilation hole opening devices mostly adopt a single punching structure and lack an effective positioning mechanism, resulting in large deviations in the position of the ventilation holes. Especially when continuously processing into rolls of plastic film, misalignment and uneven spacing of the holes are likely to occur, affecting the appearance and performance of the packaging bags. In addition, some devices do not have an effective waste collection structure during the punching process. The plastic waste generated during punching is easy to adhere to the punching components or the surface of the packaging bags, which not only affects the accuracy of subsequent processing but also requires manual cleaning, reducing production efficiency.

[0004] Therefore, it is necessary to provide a device for opening vents in the processing of plastic packaging bags to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a device for opening vent holes in the processing of plastic packaging bags.

[0006] This utility model provides a device for opening ventilation holes in plastic packaging bag processing, comprising: a frame, a conveying groove at one end of the frame, a conveyor belt in the conveying groove, two guide plates at the top end of the conveyor belt, and a pressure wheel at one end of each of the two guide plates;

[0007] A drive assembly, which is located at the top of the frame, is connected to two guide plates respectively and is used to drive the movement of the guide plates;

[0008] Two elastic components are respectively located at one end of the two guide plates to drive the elastic movement of the pressure roller.

[0009] Preferably, the drive assembly includes two first sliders, which are respectively fixedly disposed at the bottom ends of two guide plates. A first groove is provided at the top end of the frame, and both first sliders are slidably connected to the first groove. A bidirectional lead screw that is threadedly connected to the first slider is rotatably connected in the first groove. A drive motor is fixedly disposed on one side of the frame, and the output shaft of the drive motor is fixedly connected to one end of the bidirectional lead screw.

[0010] Preferably, the elastic component includes a bracket, which is rotatably mounted at one end of the pressure roller. A second slider is fixed at one end of the bracket. A second groove is provided on one side of the guide plate. The second slider is slidably connected to the second groove. The inner wall of the second groove is elastically connected to the second slider by a spring.

[0011] Preferably, a drive roller and a driven roller are rotatably connected in the conveying trough, and the drive roller and the driven roller are connected by a conveyor belt. A conveyor motor is fixed on one side of the frame, and the output shaft of the conveyor motor is fixedly connected to one end of the drive roller.

[0012] Preferably, the top of the frame is provided with a mounting plate, the bottom of the mounting plate is fixed with a plurality of punching pins, the top of the frame is provided with a plurality of punching slots corresponding to the punching pins, the bottom of the frame is fixed with a collection box located below the punching slots, a filter screen is fixed inside the collection box, and a collection component located below the filter screen is provided inside the collection box.

[0013] Preferably, the collection assembly includes a negative pressure pipe, which is fixedly installed at the bottom of the inner wall of the collection box. The top of the negative pressure pipe is connected to multiple negative pressure heads, and the bottom of the collection box is fixed with a negative pressure fan that is connected to the negative pressure pipe.

[0014] Preferably, a truss is fixed to the top of the frame, and a hydraulic cylinder is fixed to the bottom of the truss. The telescopic end of the hydraulic cylinder is fixedly connected to the top of the mounting plate.

[0015] Preferably, the negative pressure head is configured to correspond to the punching groove.

[0016] Compared with related technologies, the ventilation hole opening device for processing plastic packaging bags provided by this utility model has the following beneficial effects:

[0017] 1. A dual positioning structure is formed by the drive component, guide plate, pressure roller and elastic component. The drive component can accurately adjust the distance between the two guide plates to adapt to packaging bags of different widths through the drive motor, bidirectional lead screw, first slider and first slide groove, to avoid lateral deviation during conveying; the pressure roller, under the action of the spring, second slider, second slide groove and bracket of the elastic component, always elastically presses the packaging bag to prevent vertical movement. The dual positioning ensures the stability of the packaging bag position when punching, effectively reducing the phenomenon of hole misalignment and uneven spacing when continuously processing into roll plastic film, and improving the appearance and performance of the packaging bag;

[0018] 2. A highly efficient waste collection system is constructed using a collection box, filter screen, and collection components. The negative pressure fan, negative pressure pipe, and negative pressure head corresponding to the punching slot in the collection components can suck punching waste from the punching slot into the collection box in real time. The filter screen effectively intercepts waste to prevent it from entering the negative pressure system, eliminating the need for real-time manual cleaning and preventing waste from adhering to the punching components (mounting plate, punching needles) or the surface of the packaging bag, ensuring the accuracy of subsequent processing. At the same time, it reduces manual cleaning and significantly improves production efficiency. In addition, the device achieves continuous conveying of packaging bags through a conveyor belt, active roller, driven roller, and conveyor motor. With the hydraulic cylinder-driven mounting plate and multiple punching needles punching synchronously, it can meet the needs of large-scale continuous production, further improving processing efficiency. Moreover, the structural design is adapted to the processing of packaging bags of different specifications, making it easy to operate and highly practical, effectively ensuring the accuracy and efficiency of processing ventilation holes in plastic packaging bags. Attached Figure Description

[0019] Figure 1 A schematic diagram provided for this utility model;

[0020] Figure 2 A schematic diagram of the guide plate provided by this utility model;

[0021] Figure 3 Provided by this utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 A schematic diagram of the collection box provided by this utility model.

[0023] Labels in the diagram: 1. Frame; 2. Conveying trough; 3. Conveying belt; 4. Guide plate; 5. Pressure roller; 6. Drive assembly; 61. First slider; 62. First chute; 63. Bidirectional lead screw; 64. Drive motor; 7. Elastic component; 71. Support; 72. Second slider; 73. Second chute; 74. Spring; 8. Driving roller; 9. Driven roller; 10. Conveying motor; 11. Mounting plate; 12. Punching pin; 13. Punching groove; 14. Collection box; 15. Filter screen; 16. Collection assembly; 161. Negative pressure pipe; 162. Negative pressure head; 163. Negative pressure fan; 17. Truss; 18. Hydraulic cylinder. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please refer to the following: Figures 1 to 4 A device for opening ventilation holes for processing plastic packaging bags includes: a frame 1, a conveying groove 2 is provided at one end of the frame 1, a conveyor belt 3 is provided in the conveying groove 2, two guide plates 4 are provided at the top end of the conveyor belt 3, and a pressure wheel 5 is provided at one end of each of the two guide plates 4.

[0026] The drive assembly 6 is located at the top of the frame 1. The drive assembly 6 is connected to two guide plates 4 respectively and is used to drive the movement of the guide plates 4.

[0027] Two elastic components 7 are respectively disposed at one end of the two guide plates 4, and are used to drive the elastic movement of the pressure roller 5.

[0028] Specifically, the drive assembly 6 includes two first sliders 61, which are fixedly mounted at the bottom ends of the two guide plates 4 respectively. A first groove 62 is provided at the top of the frame 1. Both first sliders 61 are slidably connected to the first groove 62. A bidirectional lead screw 63, which is threadedly connected to the first sliders 61, is rotatably connected inside the first groove 62. A drive motor 64 is fixed on one side of the frame 1. The output shaft of the drive motor 64 is fixedly connected to one end of the bidirectional lead screw 63.

[0029] The working process is as follows: the drive assembly 6 (including two first sliders 61, a first slide groove 62, a bidirectional lead screw 63, and a drive motor 64) is set up in cooperation with two guide plates 4. The drive motor 64 is started, and its output shaft drives the bidirectional lead screw 63 to rotate in the first slide groove 62. The rotation of the bidirectional lead screw 63 drives the two first sliders 61, which are threaded to it, to slide relatively closer or further away along the first slide groove 62, thereby driving the two guide plates 4 to move synchronously, so as to adjust the distance between the two guide plates 4. It can be adapted to plastic packaging bags of different widths and solves the problems of fixed guide spacing and poor versatility of traditional devices, laying the foundation for subsequent precise conveying and punching.

[0030] Specifically, the elastic component 7 includes a bracket 71, which is rotatably mounted at one end of the pressure roller 5. A second slider 72 is fixed at one end of the bracket 71. A second groove 73 is provided on one side of the guide plate 4. The second slider 72 is slidably connected to the second groove 73. The inner wall of the second groove 73 is elastically connected to the second slider 72 by a spring 74.

[0031] With the cooperation of the elastic component 7 (including bracket 71, second slider 72, second slide groove 73, and spring 74) with the pressure roller 5 and guide plate 4, the working process is as follows: when the plastic packaging bag passes through the pressure roller 5 driven by the conveyor belt 3, the elastic force generated by the spring 74 pushes the second slider 72 to slide down along the second slide groove 73. The second slider 72 drives the bracket 71 to move synchronously. The bracket 71 drives the pressure roller 5 to always be in close contact with the surface of the plastic packaging bag, so as to achieve the effect of elastically pressing plastic packaging bags of different thicknesses, avoiding the packaging bag from moving up and down during the conveying process, ensuring the conveying stability, and reducing the hole position deviation caused by the displacement of the packaging bag.

[0032] Specifically, a drive roller 8 and a driven roller 9 are rotatably connected in the conveyor trough 2. The drive roller 8 and the driven roller 9 are connected by a conveyor belt 3. A conveyor motor 10 is fixed on one side of the frame 1. The output shaft of the conveyor motor 10 is fixedly connected to one end of the drive roller 8.

[0033] By cooperating with the conveying components (including the active roller 8, the driven roller 9, and the conveying motor 10) and the conveying belt 3 and the conveying trough 2, the working process is as follows: the conveying motor 10 is started, and its output shaft drives the active roller 8 to rotate in the conveying trough 2. The active roller 8 drives the driven roller 9 to rotate synchronously through the conveying belt 3. The conveying belt 3 then rotates at a uniform speed along the set direction, achieving the effect of continuous and stable conveying of plastic packaging bags. This replaces the traditional manual feeding method, improves feeding efficiency, ensures the smooth operation of continuous punching, and avoids problems such as uneven conveying speed and intermittency caused by manual feeding.

[0034] Specifically, the top of the frame 1 is provided with a mounting plate 11, and the bottom of the mounting plate 11 is fixed with a plurality of punching pins 12. The top of the frame 1 is provided with a plurality of punching slots 13 corresponding to the punching pins 12. The bottom of the frame 1 is fixed with a collection box 14 located below the punching slots 13. A filter screen 15 is fixed inside the collection box 14. A collection assembly 16 located below the filter screen 15 is provided inside the collection box 14. The collection assembly 16 includes a negative pressure pipe 161. The negative pressure pipe 161 is fixedly installed at the bottom of the inner wall of the collection box 14. The top of the negative pressure pipe 161 is connected to a plurality of negative pressure heads 162. The bottom of the collection box 14 is fixed with a negative pressure fan 163 connected to the negative pressure pipe 161.

[0035] By cooperating with the collection component 16 (including negative pressure pipe 161, negative pressure head 162, and negative pressure fan 163) and the collection box 14, filter screen 15, and punching groove 13, the working process is as follows: When the punching operation begins, the negative pressure fan 163 is started. The negative pressure fan 163 generates negative pressure through the negative pressure pipe 161. The negative pressure head 162 at the top of the negative pressure pipe 161 (corresponding to the punching groove 13) sucks the plastic waste generated by punching from the punching groove 13 into the collection box 14. When the waste passes through the filter screen 15, it is intercepted above the filter screen 15, achieving the effect of real-time and efficient collection of punching waste. This avoids the waste from adhering to the surface of the punching component or packaging bag, which affects the subsequent processing accuracy. There is no need for manual cleaning of waste in real time, reducing labor costs and improving production efficiency.

[0036] Specifically, a truss 17 is fixed at the top of the frame 1, and a hydraulic cylinder 18 is fixed at the bottom of the truss 17. The telescopic end of the hydraulic cylinder 18 is fixedly connected to the top of the mounting plate 11.

[0037] With the coordinated arrangement of truss 17, hydraulic cylinder 18, mounting plate 11, and punching pins 12, the working process is as follows: when the plastic packaging bag is conveyed to the punching area, the hydraulic cylinder 18 is activated. The telescopic end of the hydraulic cylinder 18 drives the mounting plate 11 to move up and down in the vertical direction. The mounting plate 11 drives multiple punching pins 12 at the bottom to move synchronously. When the punching pins 12 move downward, they pass through the plastic packaging bag and insert into the punching groove 13 to complete the punching. This achieves the effect of stable and precise driving of the punching pins 12 to perform punching operations. Compared with the traditional manual or pneumatic drive method, the hydraulic cylinder 18 has a more stable driving force and stronger controllability, which can ensure consistent punching depth, reduce punching quality problems caused by unstable drive, and improve the processing accuracy of the vent holes.

[0038] Specifically, the negative pressure head 162 is set in correspondence with the punching groove 13. This correspondence facilitates the negative pressure head 162 to adsorb the waste material on the top of the frame 1.

[0039] The working principle of the ventilation hole opening device for processing plastic packaging bags provided by this utility model is as follows:

[0040] Before using the ventilation hole opening device for processing plastic packaging bags, pre-processing is required according to the width of the plastic packaging bag to be processed. Start the drive motor 64 in the drive assembly 6. The output shaft of the drive motor 64 drives the bidirectional lead screw 63 in the first slide groove 62 to rotate. Since the two first sliders 61 are respectively fixed to the bottom of the two guide plates 4 and threadedly connected to the bidirectional lead screw 63, the rotation of the bidirectional lead screw 63 will cause the two first sliders 61 to slide relatively closer or further apart along the first slide groove 62, thereby adjusting the distance between the two guide plates 4 until it matches the width of the plastic packaging bag. Then turn off the drive motor 64. Next, check the status of each component to ensure that the conveyor belt 3, punching needle 12, collecting assembly 16, etc. are normal. Then start the conveyor belt. Machine 10, the output shaft of conveyor motor 10 drives the active roller 8 in conveyor trough 2 to rotate. The active roller 8 drives the driven roller 9 to rotate synchronously through conveyor belt 3, so that conveyor belt 3 starts to run at a uniform speed. The plastic packaging bag or roll of plastic film to be processed is placed at the feed end of conveyor belt 3. Conveyor belt 3 drives the plastic packaging bag to move towards the punching area. During the conveying process, the plastic packaging bag moves along the inner side of the two guide plates 4 on both sides to avoid lateral deviation. When the plastic packaging bag moves to the pressure roller 5 at one end of guide plate 4, the pressure roller 5 contacts the surface of the packaging bag under the action of elastic component 7. In elastic component 7, one end of bracket 71 is rotatably connected to pressure roller 5, and the other end of second slider 72 is slidably embedded in second slide groove 73 on one side of guide plate 4. The second slider 72 is elastically connected to the inner wall of the second slide groove 73 via a spring 74. The spring force of the spring 74 pushes the second slider 72 downward along the second slide groove 73, keeping the pressure roller 5 in close contact with the surface of the packaging bag and preventing the packaging bag from moving up and down. When the packaging bag is conveyed to the bottom of the mounting plate 11 at the top of the frame 1, the hydraulic cylinder 18 at the bottom of the truss 17 is activated. The telescopic end of the hydraulic cylinder 18 drives the mounting plate 11 to move downward. Multiple punching pins 12 at the bottom of the mounting plate 11 move downward synchronously, pass through the packaging bag, and insert into the corresponding punching slot 13 at the top of the frame 1 to complete the opening of the ventilation hole. At the same time, the negative pressure fan 163 at the bottom of the collection box 14 is activated. The negative pressure fan 163 generates negative pressure through the negative pressure pipe 161 at the bottom of the inner wall of the collection box 14. Multiple negative pressure heads 162, corresponding to the punching slot 13, are installed at the top of the negative pressure pipe 161 to draw plastic waste generated during punching from the punching slot 13 into the collection box 14. The waste is intercepted by the filter screen 15 in the collection box 14 and is kept above the filter screen 15 to prevent it from entering the negative pressure pipe 161 and affecting the operation of the equipment. After punching is completed, the extension end of the hydraulic cylinder 18 drives the mounting plate 11 to return to its original position. The conveyor belt 3 continues to transport the processed packaging bag to the discharge end, while simultaneously transporting the next section of packaging bag to be processed to the punching area. The above punching action is repeated to achieve continuous processing. When the waste in the collection box 14 accumulates to a certain amount, the negative pressure fan 163 is turned off, the collection box 14 is opened to clean the waste on the filter screen 15, and the equipment is restarted after cleaning to continue operation.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus for perforating a plastic packaging bag, characterized by comprising: include: A frame (1) is provided with a conveying groove (2) at one end of the frame (1), a conveyor belt (3) is provided in the conveying groove (2), and two guide plates (4) are provided at the top of the conveyor belt (3). Each of the two guide plates (4) is provided with a pressure wheel (5). A drive assembly (6) is disposed at the top of the frame (1). The drive assembly (6) is connected to two guide plates (4) respectively and is used to drive the movement of the guide plates (4). Two elastic components (7) are respectively disposed at one end of two guide plates (4) for driving the elastic movement of the pressure roller (5).

2. The device according to claim 1, wherein The drive assembly (6) includes two first sliders (61), which are fixedly mounted on the bottom ends of two guide plates (4). The top end of the frame (1) is provided with a first groove (62), and both first sliders (61) are slidably connected to the first groove (62). A bidirectional lead screw (63) that is threadedly connected to the first slider (61) is rotatably connected in the first groove (62). A drive motor (64) is fixed on one side of the frame (1), and the output shaft of the drive motor (64) is fixedly connected to one end of the bidirectional lead screw (63).

3. The device according to claim 2, wherein The elastic component (7) includes a bracket (71), which is rotatably disposed at one end of the pressure wheel (5). A second slider (72) is fixed at one end of the bracket (71). A second groove (73) is provided on one side of the guide plate (4). The second slider (72) is slidably connected to the second groove (73). The inner wall of the second groove (73) is elastically connected to the second slider (72) by a spring (74).

4. The device according to claim 1, wherein The conveying trough (2) is rotatably connected to a drive roller (8) and a driven roller (9). The drive roller (8) and the driven roller (9) are connected by a conveyor belt (3). A conveyor motor (10) is fixed on one side of the frame (1). The output shaft of the conveyor motor (10) is fixedly connected to one end of the drive roller (8).

5. The device for opening vents in plastic packaging bag processing according to claim 1, characterized in that, The top of the frame (1) is provided with a mounting plate (11), and a plurality of punching pins (12) are fixed at the bottom of the mounting plate (11). The top of the frame (1) is provided with a plurality of punching slots (13) corresponding to the punching pins (12). The bottom of the frame (1) is fixed with a collection box (14) located below the punching slots (13). A filter screen (15) is fixed inside the collection box (14), and a collection component (16) located below the filter screen (15) is provided inside the collection box (14).

6. The device according to claim 5, wherein The collection assembly (16) includes a negative pressure pipe (161), which is fixedly installed at the bottom of the inner wall of the collection box (14). The top of the negative pressure pipe (161) is connected to a plurality of negative pressure heads (162), and the bottom of the collection box (14) is fixed with a negative pressure fan (163) connected to the negative pressure pipe (161).

7. The device according to claim 5, wherein A truss (17) is fixed at the top of the frame (1), and a hydraulic cylinder (18) is fixed at the bottom of the truss (17). The telescopic end of the hydraulic cylinder (18) is fixedly connected to the top of the mounting plate (11).

8. The device according to claim 6, wherein The negative pressure head (162) is arranged corresponding to the punching groove (13).

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