Plastic bag cutting machine for plastic packaging production line
By designing a scraping component and a hydraulic cylinder to adjust the cutting position on the plastic bag cutting machine, the waste material on the surface of the hot melt cutting plate is automatically removed, solving the problem of hot cutting waste adhesion and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-07
AI Technical Summary
During the hot cutting process of existing plastic bag cutting machines, waste material easily adheres to the surface of the blades, requiring frequent manual cleaning, which increases downtime for maintenance and affects production efficiency.
Design a plastic bag cutting machine for a plastic packaging production line. The machine uses a scraping component that drives a moving block via a lead screw and guide rod. It works in conjunction with an electric telescopic rod to adjust the scraper, automatically removing plastic clumps from the surface of the hot melt cutting plate. The cutting position is adjusted by a hydraulic cylinder, and the cutting plate is heated by a heating box for hot cutting.
It enables automated removal of waste from the surface of the hot melt cutting board, reducing downtime for maintenance, improving production efficiency, and allowing cleaning operations to be performed without stopping the equipment.
Smart Images

Figure CN224089793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic bag production equipment, and in particular to a plastic bag cutting machine for a plastic packaging production line. Background Technology
[0002] It takes several steps, including material selection, melting, film making, printing, sealing and cutting, to produce environmentally friendly plastic packaging bags that meet the process requirements. Among them, the cutting process plays a crucial role in the production of plastic bags. The plastic bags need to be cut. If the degree of cutting is high, a batch of individual plastic bags can be produced.
[0003] Plastic bag cutting is generally done by hot cutting. The waste generated by the hot cutting process tends to adhere to the surface of the blades, requiring frequent manual cleaning. After cleaning, the waste that falls onto the worktable needs to be collected manually, which increases downtime for maintenance and affects production efficiency.
[0004] To address the above problems, a plastic bag cutting machine for plastic packaging production lines needs to be designed to overcome them. Utility Model Content
[0005] The main objective of this invention is to provide a plastic bag cutting machine for a plastic packaging production line, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A plastic bag cutting machine for a plastic packaging production line includes a plastic bag cutting machine body, and a scraping component is installed on the upper end of the plastic bag cutting machine body;
[0008] The scraping assembly includes a support frame disposed on the outer wall of one upper end of the main body of the plastic bag cutter. A side rod is installed on the outer wall of the main body of the plastic bag cutter on one side of the support frame. A support plate is installed on the outer wall of the side rod. A motor is installed on the outer wall of the upper end of the support plate. The output end of the motor passes through the support plate and is connected to a lead screw via a coupling. A moving block is disposed on the outer wall of the lead screw. A slider is disposed on one side of the moving block. A guide rod is disposed inside the slider. A first adjusting plate is disposed on the other side of the moving block. A rotating shaft is disposed in the middle of the first adjusting plate. An electric telescopic rod is disposed on the outer wall of one end of the rotating shaft. A second adjusting plate is disposed on the other end of the electric telescopic rod. A scraper is disposed on one end of the second adjusting plate. A receiving box is disposed on one side of the scraper.
[0009] As a preferred embodiment of this utility model, a connecting plate is installed on the top of the support frame, and hydraulic cylinders are respectively installed at both ends of the upper side of the connecting plate. A heating box is provided at one end of the connecting plate through the hydraulic cylinders, and a hot melt cutting plate is installed on one side of the heating box.
[0010] As a preferred embodiment of this utility model, a conveyor belt is installed on the upper side of the main body of the plastic bag cutting machine, a heat-insulated cutting table is installed on the lower side of the support frame, and a storage platform is installed on the right side near the heat-insulated cutting table.
[0011] As a preferred embodiment of this utility model, the conveyor belt is detachably installed with respect to the main body of the plastic bag cutting machine, the heat-insulated cutting table is detachably installed with respect to the main body of the plastic bag cutting machine, and the storage platform is fixedly installed with respect to the main body of the plastic bag cutting machine.
[0012] As a preferred embodiment of this utility model, the connecting plate is fixedly welded to the support frame, the hydraulic cylinder is fixedly connected to the connecting plate, and the hydraulic cylinder is fixedly connected to the heating box.
[0013] As a preferred embodiment of this utility model, the side rod is fixedly installed between the main body of the plastic bag cutting machine, the support plate is detachably installed between the side rod, the motor is fixedly installed between the support plate, and the output end of the motor is fixedly connected to the lead screw through a coupling.
[0014] In a preferred embodiment of this utility model, the lead screw and the support plate are rotatably connected by a bearing, the guide rod and the support plate are fixedly connected, the slider and the guide rod are slidably connected, the moving block and the lead screw are threadedly connected, and the moving block and the slider are fixedly connected.
[0015] As a preferred embodiment of this utility model, the first adjusting plate is fixedly connected to the moving block, the rotating shaft is fixedly connected to the electric telescopic rod, the rotating shaft is rotatably connected to the first adjusting plate, the second adjusting plate is hinged to the first adjusting plate, the electric telescopic rod is fixedly connected to the second adjusting plate, and the second adjusting plate is fixedly connected to the scraper.
[0016] Beneficial effects
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. In this utility model, a plastic bag cutting machine for a plastic packaging production line is designed. A lead screw and guide rod drive a first adjusting plate at one end of a moving block to move back and forth. During the movement of the first adjusting plate, a scraper is driven to scrape the hot melt cutting plate, which helps to prevent plastic lumps from remaining on the surface of the hot melt cutting plate and prevents them from affecting the cutting of the main body of the plastic bag cutting machine. The angle of the scraper can be easily adjusted by the extension and retraction of the electric telescopic rod, so that it can fit more closely to the surface of the hot melt cutting plate and make cleaning more convenient. The removed plastic lumps are collected by the receiving box. The operation can be carried out without stopping the equipment, saving operation time.
[0019] 2. In this utility model, a plastic bag cutting machine for a plastic packaging production line is designed. The hydraulic cylinder extends and retracts to facilitate the adjustment of the hot melt cutting position according to the thickness of the plastic packaging bag. The heating box facilitates the heating of the hot melt cutting plate to perform hot cutting operation on the plastic bag. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main structure of the plastic bag cutting machine of this utility model;
[0021] Figure 2 This is a schematic diagram of the scraper and support plate of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the hot melt cutting plate of this utility model.
[0023] In the diagram: 1. Main body of the plastic bag cutting machine; 2. Conveyor belt; 3. Heat-insulated cutting table; 4. Scraping assembly; 401. Support frame; 402. Side rod; 403. Support plate; 404. Motor; 405. Guide rod; 406. Slider; 407. Moving block; 408. Lead screw; 409. First adjusting plate; 410. Rotating shaft; 411. Electric telescopic rod; 412. Second adjusting plate; 413. Scraper; 414. Connecting plate; 415. Hydraulic cylinder; 416. Heating box; 417. Hot melt cutting plate; 418. Receiving box; 5. Storage table. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figures 1-3 As shown, a plastic bag cutting machine for a plastic packaging production line includes a plastic bag cutting machine body 1, and a scraping component 4 is installed on the upper end of the plastic bag cutting machine body 1.
[0026] The scraping assembly 4 includes a support frame 401 mounted on the outer wall of one upper end of the plastic bag cutting machine body 1. A side rod 402 is installed on the outer wall of the plastic bag cutting machine body 1 on one side of the support frame 401. A support plate 403 is installed on the outer wall of the side rod 402. A motor 404 is installed on the outer wall of one upper end of the support plate 403. The output end of the motor 404 passes through the support plate 403 and is connected to a lead screw 408 via a coupling. A moving block 407 is provided on the outer wall of the lead screw 408. A slider 406 is provided on one side of the moving block 407. A guide rod 405 is provided inside the slider 406. A first adjusting plate 409 is provided on the other side of the moving block 407. A rotating shaft 410 is provided in the middle of the first adjusting plate 409. An electric telescopic rod 411 is provided on the outer wall of one end of the rotating shaft 410. A second adjusting plate 412 is provided on the other end of the electric telescopic rod 411. A scraper 413 is installed on one end of the second adjusting plate 412. A receiving box 418 is provided on one side of the scraper 413.
[0027] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, a connecting plate 414 is installed on the top of the support frame 401. Hydraulic cylinders 415 are installed at both ends of the upper side of the connecting plate 414. A heating box 416 is provided at one end of the hydraulic cylinder 415 passing through the connecting plate 414. A hot melt cutting plate 417 is installed on one side of the heating box 416. A conveyor belt 2 is installed on the upper side of the plastic bag cutting machine body 1. A heat-insulating cutting table 3 is installed on the lower side of the support frame 401. A storage platform 5 is installed on the right side near the heat-insulating cutting table 3. The conveyor belt 2 and the plastic bag cutting machine body 1 are detachably installed. The heat-insulating cutting table 3 and the plastic bag cutting machine body 1 are detachably installed. The storage platform 5 is fixedly installed to the plastic bag cutting machine body 1. The connecting plate 414 is fixedly welded to the support frame 401. The hydraulic cylinder 415 is fixedly connected to the connecting plate 414. The hydraulic cylinder 415 is fixedly connected to the heating box 416. The side rod 402 is fixedly installed to the plastic bag cutting machine body 1. The support plate 403 and the side rod 402 are detachably installed. The motor 404 and the support plate 403 are fixedly installed. The output end of the motor 404 and the lead screw 408 are fixedly connected through a coupling. The lead screw 408 and the support plate 403 are rotatably connected through a bearing. The guide rod 405 and the support plate 403 are fixedly connected. The slider 406 and the guide rod 405 are slidably connected. The moving block 407 and the lead screw 408 are threadedly connected. The moving block 407 and the slider 406 are fixedly connected. The first adjusting plate 409 and the moving block 407 are fixedly connected. The rotating shaft 410 and the electric telescopic rod 411 are fixedly connected. The rotating shaft 410 and the first adjusting plate 409 are rotatably connected. The second adjusting plate 412 and the first adjusting plate 409 are hinged. The electric telescopic rod 411 and the second adjusting plate 412 are fixedly connected. The second adjusting plate 412 and the scraper 413 are fixedly connected.
[0028] In this process, after the scraper 413 scrapes off the plastic clumps on the surface of the hot melt cutting plate 417, the waste material falls directly into the receiving box 418.
[0029] In particular, the hydraulic cylinder 415 pushes the heating box 416 and the hot melt cutting plate 417 up and down to adjust according to the thickness of the plastic bag, so as to ensure that the cutting depth is consistent;
[0030] It features a built-in heating element with an adjustable temperature range of 50–250°C, suitable for hot melt cutting of different materials such as PE and PVC.
[0031] The working process of this utility model is as follows: When using the plastic bag cutting machine for a plastic packaging production line designed in this scheme, the power to the main body 1 of the plastic bag cutting machine is turned on, and the conveyor belt 2 is started to transport the plastic bags to the heat-insulated cutting table 3. The hydraulic cylinder 415 extends and retracts, driving the hot-melt cutting plate 417 to perform hot-press cutting. The hot-melt cutting plate 417 is heated by the heating box 416 to facilitate the hot-melt cutting of the plastic bags. The cut plastic bags are then transported to the storage table 5 for placement. However, after the hot-melt cutting plate 417 has been hot-melted for a period of time, plastic clumps may adhere to its surface, affecting the cutting effect. The motor 404 is started, driving the lead screw 408 to rotate, and the moving block 40... 7. The slider 406 slides against the outer wall of the guide rod 405 for guidance, causing the moving block 407 to drive the first adjusting plate 409 to move back and forth. During the movement, the scraper 413 at one end of the second adjusting plate 412 scrapes the hot melt cutting plate 417. The electric telescopic rod 411 extends and retracts to drive the scraper 413 to adjust the angle, making it easier to fit the hot melt cutting plate 417. The operation is simple and facilitates the timely removal of plastic lumps left on the surface of the hot melt cutting plate 417. The removed plastic lumps are collected by the receiving box 418. The operation can be carried out without stopping the equipment, saving the time of cutting plastic bags and improving the efficiency of the main body 1 of the plastic bag cutting machine.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A plastic bag cutting machine for a plastic packaging production line, comprising a main body (1) of the plastic bag cutting machine, characterized in that: A scraping component (4) is installed on one of the upper ends of the main body (1) of the plastic bag cutting machine; The scraping assembly (4) includes a support frame (401) disposed on the outer wall of one upper end of the plastic bag cutting machine body (1). A side rod (402) is installed on the outer wall of the plastic bag cutting machine body (1) on one side of the support frame (401). A support plate (403) is installed on the outer wall of the side rod (402). A motor (404) is installed on the outer wall of the upper end of the support plate (403). The output end of the motor (404) passes through the support plate (403) and is connected to a lead screw (408) via a coupling. A moving block (407) is provided on the outer wall of the lead screw (408). A slider (406) is provided on one side of the moving block (407), and a guide rod (405) is provided inside the slider (406). A first adjusting plate (409) is provided on the other side of the moving block (407). A rotating shaft (410) is provided in the middle of the first adjusting plate (409). An electric telescopic rod (411) is provided on the outer wall of one end of the rotating shaft (410). A second adjusting plate (412) is provided at the other end of the electric telescopic rod (411). A scraper (413) is installed at one end of the second adjusting plate (412). A receiving box (418) is provided on one side of the scraper (413).
2. The plastic bag cutting machine for a plastic packaging production line according to claim 1, characterized in that: A connecting plate (414) is installed on the top of the support frame (401). Hydraulic cylinders (415) are installed at both ends of the upper side of the connecting plate (414). A heating box (416) is provided at one end of the hydraulic cylinder (415) through the connecting plate (414). A hot melt cutting plate (417) is installed on one side of the heating box (416).
3. The plastic bag cutting machine for a plastic packaging production line according to claim 1, characterized in that: A conveyor belt (2) is installed on the upper side of the main body (1) of the plastic bag cutting machine, a heat-insulating cutting table (3) is installed on the lower side of the support frame (401), and a storage table (5) is installed on the right side near the heat-insulating cutting table (3).
4. A plastic bag cutting machine for a plastic packaging production line according to claim 3, characterized in that: The conveyor belt (2) is detachably installed between itself and the main body (1) of the plastic bag cutter, the heat-insulated cutting table (3) is detachably installed between itself and the main body (1) of the plastic bag cutter, and the storage platform (5) is fixedly installed between itself and the main body (1) of the plastic bag cutter.
5. A plastic bag cutting machine for a plastic packaging production line according to claim 2, characterized in that: The connecting plate (414) is fixedly welded to the support frame (401), the hydraulic cylinder (415) is fixedly connected to the connecting plate (414), and the hydraulic cylinder (415) is fixedly connected to the heating box (416).
6. A plastic bag cutting machine for a plastic packaging production line according to claim 1, characterized in that: The side rod (402) is fixedly installed between the main body (1) of the plastic bag cutting machine, the support plate (403) is detachably installed between the side rod (402), the motor (404) is fixedly installed between the support plate (403), and the output end of the motor (404) is fixedly connected to the lead screw (408) through a coupling.
7. A plastic bag cutting machine for a plastic packaging production line according to claim 1, characterized in that: The lead screw (408) and the support plate (403) are rotatably connected by bearings, the guide rod (405) and the support plate (403) are fixedly connected, the slider (406) and the guide rod (405) are slidably connected, the moving block (407) and the lead screw (408) are threadedly connected, and the moving block (407) and the slider (406) are fixedly connected.
8. A plastic bag cutting machine for a plastic packaging production line according to claim 1, characterized in that: The first adjusting plate (409) is fixedly connected to the moving block (407), the rotating shaft (410) is fixedly connected to the electric telescopic rod (411), the rotating shaft (410) is rotatably connected to the first adjusting plate (409), the second adjusting plate (412) is hinged to the first adjusting plate (409), the electric telescopic rod (411) is fixedly connected to the second adjusting plate (412), and the second adjusting plate (412) is fixedly connected to the scraper (413).