A heat-shrinkable film packaging bag forming apparatus
By introducing positioning components and adjusting heating components into the heat shrink film packaging bag forming device, the problem of insufficient positioning accuracy was solved, enabling precise positioning and flexible heating of materials, thereby improving the heat shrinking effect and appearance quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海旭杜包装材料有限公司
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
Existing heat shrink film packaging bag forming devices have insufficient positioning accuracy, making it difficult to stably adjust the packaging bag to the center position before heating, thus affecting the heat shrinking effect.
The device employs a positioning component and an adjusting heating component. The positioning component adjusts the material position by driving a bidirectional lead screw and a baffle via a motor, while the adjusting heating component adjusts the heating distance by driving a screw and a heating tube via a motor, thus achieving precise positioning and flexible heating.
It achieves precise centering and flexible heating of materials, avoiding problems such as uneven heat shrinkage and edge wrinkles, and improving the packaging appearance qualification rate and heat shrinkage effect.
Smart Images
Figure CN224392079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of heat shrink film packaging bag forming device, and in particular to a heat shrink film packaging bag forming device. Background Technology
[0002] Heat shrink packaging, a process that uses heat to shrink a film and tightly wrap materials, is widely used in food, medicine, daily necessities, and electronic products. Its core advantages are high packaging efficiency, good sealing, and beautiful appearance. It can also effectively prevent moisture, dust, and damage. With the increasing demand for diversified and personalized product packaging in the consumer market, as well as the popularization of e-commerce logistics and automated production lines, heat shrink packaging equipment is developing towards "high precision, high efficiency, and high flexibility".
[0003] Existing heat shrink film packaging bag forming devices may have insufficient positioning accuracy. When the heat shrink film packaging bag carrying the product is transported to the heating frame, it is difficult to stably adjust to the center position due to the lack of an efficient and accurate positioning mechanism. The positional deviation of the packaging bag will lead to poor heat shrinking effect. To address this, we propose a heat shrink film packaging bag forming device. Utility Model Content
[0004] The purpose of this utility model is to provide a heat shrink film packaging bag forming device to solve the problem of insufficient positioning accuracy mentioned in the background art. When the heat shrink film packaging bag carrying the product is transported to the heating frame, it is difficult to stably adjust to the center position due to the lack of an efficient and accurate positioning mechanism. The deviation of the packaging bag position will lead to poor heat shrink effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat shrink film packaging bag forming device, including a worktable, a conveying device inside the worktable, a heating frame fixedly installed at the rear of the top of the worktable, and a positioning component installed at the top of the worktable and in front of the heating frame. The positioning component includes a fixing frame, a first motor, a guide rod, and a sliding rod. The fixing frame is fixedly installed on the outer wall of the worktable. The first motor is connected to a moving block and a baffle through a bidirectional lead screw. The sliding rod is connected to an operating rod and an adjusting plate through a sliding plate.
[0006] As a preferred embodiment, the first motor is fixedly installed on the right outer wall of the fixing frame, one end of the bidirectional lead screw is fixedly connected to the output end of the first motor, and the other end of the bidirectional lead screw is rotatably connected to the left inner wall of the fixing frame.
[0007] As a preferred embodiment, the outer wall of the bidirectional lead screw is rotatably connected to the inner wall of the right side of the fixed frame, the guide rod is fixedly installed on the inner walls of both sides of the fixed frame and located directly above the bidirectional lead screw, and two sets of moving blocks are provided, with the upper inner walls of both sets of moving blocks slidably connected to the outer wall of the guide rod.
[0008] As a preferred embodiment, the lower inner walls of both sets of movable blocks are threaded to the outer wall of the bidirectional lead screw. Two sets of baffles are also provided, and the two sets of baffles are respectively fixedly connected to the lower outer walls of the two sets of movable blocks. The slide rod is fixedly installed on the inner walls of both sides of the fixed frame and located in front of the guide rod.
[0009] As a preferred embodiment, the slide, the operating lever, and the adjusting plate are each provided in two sets. The two sets of slides are slidably connected to the outer wall of the sliding rod, the two sets of operating levers are respectively fixedly connected to the front outer wall of the two sets of slides, and the two sets of adjusting plates are respectively fixedly connected to the lower surface of the two sets of slides.
[0010] As a preferred embodiment, the heating frame is provided with an adjustable heating component inside and at the top. The adjustable heating component includes a heating control box. The bottom of the heating control box is electrically connected to a heating conduit. The outer wall of the heating conduit is slidably connected to the inner wall of the top of the heating frame. Multiple sets of material heating pipes distributed at equal intervals are fixedly connected to the inner wall of the heating conduit. The multiple sets of material heating pipes are located inside the heating frame and directly above the conveying device.
[0011] As a preferred embodiment, a connecting frame is fixedly installed on the top of the heating frame, and a second motor is fixedly connected to the top of the heating frame and to the right of the connecting frame. The output end of the second motor is fixedly connected to a screw, and the upper end of the screw is rotatably connected to the inner top wall of the connecting frame.
[0012] As a preferred embodiment, a sliding groove is provided on the outer wall of the connecting frame, and a movable part is threadedly connected to the outer wall of the screw. The left end of the movable part is slidably connected to the inside of the sliding groove, and the right end of the movable part is fixedly connected to the top of the heating control box.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. Through the positioning components, the operator can start the first motor, which drives the bidirectional lead screw to rotate, causing two sets of moving blocks to move synchronously in opposite directions. This, in turn, drives the two sets of baffles to adjust the distance, achieving centering positioning for materials of different widths. This effectively controls material offset errors and avoids problems such as uneven shrinkage of heat shrink film and edge wrinkles caused by positional deviations, thus improving the packaging appearance qualification rate. When the material moves to the front of the two sets of baffles, if the position is offset, the operator can manually push the operating lever to make the adjustment plate slide along the slide bar. The adjustment plate pushes the material to the middle position of the two sets of baffles, completing precise centering positioning. This ensures that the material is in the optimal position when entering the heating frame, laying the foundation for uniform shrinkage of the heat shrink film.
[0015] 2. By adjusting the heating components, the operator can start the second motor, which drives the screw to rotate and move the moving parts up and down along the slide, thus realizing the vertical displacement of the heating control box and the material heating tube. This design can flexibly adjust the distance between the material heating tube and the material surface, accurately match the heat radiation requirements of materials of different specifications, and avoid the film from being scorched due to the distance being too close or insufficient shrinkage due to the distance being too far, thereby achieving a high-quality heat shrinkage effect for materials of all specifications. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the positioning component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the positioning component of this utility model;
[0020] Figure 5 This is one of the structural schematic diagrams of the adjustable heating component of this utility model;
[0021] Figure 6 This is the second schematic diagram of the structure of the adjustable heating component of this utility model.
[0022] In the diagram: 1. Workbench; 2. Conveying device; 3. Heating frame; 4. Positioning assembly; 401. Fixing frame; 402. First motor; 403. Bidirectional lead screw; 404. Moving block; 405. Baffle; 406. Guide rod; 407. Slide rod; 408. Slide plate; 409. Operating lever; 410. Adjusting plate; 5. Adjusting heating assembly; 501. Heating control box; 502. Heating conduit; 503. Material heating tube; 504. Connecting frame; 505. Second motor; 506. Screw; 507. Slide groove; 508. Moving part. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see the appendix Figure 1 Appendix Figure 3 and appendix Figure 4 A heat shrink film packaging bag forming device includes a workbench 1, a conveying device 2 inside the workbench 1, a heating frame 3 fixedly installed at the rear of the top of the workbench 1, and a positioning component 4 located at the top of the workbench 1 and in front of the heating frame 3. The positioning component 4 includes a fixing frame 401, a first motor 402, a guide rod 406, and a slide rod 407. The fixing frame 401 is fixedly installed on the outer wall of the workbench 1. The first motor 402 is connected to a moving block 404 and a baffle 405 through a bidirectional lead screw 403. The slide rod 407 is connected to an operating rod 409 and an adjusting plate 410 through a sliding plate 408. The first motor 402 is fixedly installed on the right outer wall of the fixing frame 401. One end of the bidirectional lead screw 403 is fixedly connected to the output end of the first motor 402, and the other end of the bidirectional lead screw 403 is rotatably connected to the left inner wall of the fixing frame 401.
[0025] A hollowed-out groove is provided in the middle of the top of the fixed frame 401. This groove mainly provides space for the left and right translation of the moving block 404. The conveying device 2 drives the heat shrink film packaging bag with the product to pass through the heating frame 3 at a uniform speed through the roller conveyor and conveyor belt, so as to realize continuous production.
[0026] The outer wall of the bidirectional lead screw 403 is rotatably connected to the inner right wall of the fixed frame 401. The guide rod 406 is fixedly installed on the inner walls of both sides of the fixed frame 401 and located directly above the bidirectional lead screw 403. Two sets of moving blocks 404 are provided. The upper inner walls of both sets of moving blocks 404 are slidably connected to the outer wall of the guide rod 406, and the lower inner walls of both sets of moving blocks 404 are threadedly connected to the outer wall of the bidirectional lead screw 403. Two sets of baffles 405 are also provided. The two sets of baffles 405 are respectively fixed... The slide rod 407 is fixedly connected to the lower outer wall of the two sets of moving blocks 404 and is fixedly installed on the inner walls of both sides of the fixed frame 401 and located in front of the guide rod 406. There are two sets of slide plates 408, operating rods 409 and adjusting plates 410. The two sets of slide plates 408 are slidably connected to the outer wall of the slide rod 407. The two sets of operating rods 409 are fixedly connected to the front outer wall of the two sets of slide plates 408 respectively. The two sets of adjusting plates 410 are fixedly connected to the lower surface of the two sets of slide plates 408 respectively.
[0027] The heating frame 3 is located at the top rear of the workbench 1. After the material is adjusted by the positioning component 4, it enters the heating frame 3 to complete the shrinkage process. The fixing frame 401 is fixedly installed on the outer wall of the workbench 1 to provide installation support for the first motor 402, the bidirectional lead screw 403, the guide rod 406 and other components of the positioning component 4, ensuring the stability of the entire component structure.
[0028] Specifically, through the positioning component 4, the operator starts the first motor 402, which drives the bidirectional lead screw 403 to rotate, causing the two sets of moving blocks 404 to move synchronously in opposite directions. This changes the distance between the two sets of baffles 405, achieving centering positioning for materials of different widths, controlling material offset errors, and avoiding problems such as uneven shrinkage of the heat shrink film and edge wrinkles caused by positional deviations, thereby improving the packaging appearance qualification rate. When the material moves to the front of the two sets of baffles 405, if the position is offset, the operator pushes the operating lever 409, causing the adjusting plate 410 to slide along the slide bar 407, pushing the material to the middle position of the two sets of baffles 405, completing the centering positioning, and ensuring that the material is in the predetermined position when entering the heating frame 3, providing conditions for subsequent heat shrink film shrinkage.
[0029] Please see the appendix Figure 1 Appendix Figure 5 and appendix Figure 6 The heating frame 3 is equipped with an adjustable heating component 5 inside and on top. The adjustable heating component 5 includes a heating control box 501. The bottom of the heating control box 501 is electrically connected to a heating conduit 502. The outer wall of the heating conduit 502 is slidably connected to the inner wall of the top of the heating frame 3. Multiple sets of material heating pipes 503 are fixedly connected to the inner wall of the heating conduit 502 and are distributed at equal intervals. The multiple sets of material heating pipes 503 are located inside the heating frame 3 and directly above the conveying device 2.
[0030] The heating frame 3 has transparent glass plates on both the left and right outer walls to allow operators to observe the internal heating status in real time. The heating frame 3 has a feed inlet and a discharge outlet at the front and rear ends, respectively, and each port is equipped with a rubber insulation strip.
[0031] A connecting frame 504 is fixedly installed on the top of the heating frame 3. A second motor 505 is fixedly connected to the top of the heating frame 3 and to the right of the connecting frame 504. The output end of the second motor 505 is fixedly connected to the screw 506. The upper end of the screw 506 is rotatably connected to the inner wall of the top of the connecting frame 504. A sliding groove 507 is provided on the outer wall of the connecting frame 504. A moving part 508 is threadedly connected to the outer wall of the screw 506. The left end of the moving part 508 is slidably connected to the inside of the sliding groove 507. The right end of the moving part 508 is fixedly connected to the top of the heating control box 501.
[0032] The material heating tube 503 uses a far-infrared quartz tube, which can generate high temperature after being powered on. Through the effect of thermal radiation, the molecular chains of the heat shrink film below are rearranged, thereby achieving shrinkage. Multiple sets of material heating tubes 503 are distributed at equal distances, which can cover the width direction of the material, thus ensuring uniform heating.
[0033] Specifically, by adjusting the heating component 5, the operator starts the second motor 505, drives the screw 506 to rotate, and drives the moving part 508 to slide up and down along the slide groove 507, so that the heating control box 501 and the material heating tube 503 are vertically displaced, and the distance between the material heating tube 503 and the material surface is adjusted to match the heat radiation requirements of different specifications of materials, so as to avoid the film from being scorched due to the distance being too close or insufficient shrinkage due to the distance being too far, and to achieve the heat shrinkage effect of materials of all specifications.
[0034] Working principle of this utility model: This utility model is a heat shrink film packaging bag forming device. First, the heat shrink film packaging bag containing the product is placed on the conveyor device 2 in the workbench 1. The conveyor device 2 drives the packaging bag to move at a constant speed towards the heating frame 3 through the roller conveyor and conveyor belt structure. Before reaching the heating frame 3, the material first enters the positioning component 4 area. The operator starts the first motor 402, and its output end drives the bidirectional lead screw 403 to rotate. The two sets of moving blocks 404 move synchronously in opposite directions along the guide rod 406, thereby driving the two sets of baffles 405 fixed at the lower end of the two sets of moving blocks 404 to adjust the distance. During this process, the operator can adjust the two sets of baffles 405 to a suitable distance according to the actual width of the material to achieve the centering of the material in the width direction. When the material moves to the front of the two sets of baffles 405, if there is a front-to-back position offset... The operator can manually push the operating lever 409, which drives the slide plate 408 to slide along the slide bar 407. The adjustment plate 410 connected to the slide plate 408 moves accordingly, pushing the offset material to the middle position of the two sets of baffles 405 to complete the position calibration and ensure that the material enters the heating frame 3 with a precise posture. Next, the operator starts the second motor 505, which drives the screw 506 to rotate. The moving part 508 on the outer wall of the screw 506 slides up and down along the slide groove 507 on the outer wall of the connecting frame 504 due to the thread drive. This drives the heating control box 501 and the material heating tube 503 fixed on the right end of the moving part 508 to make vertical displacement, thereby adjusting the distance between the material heating tube 503 and the material surface. When the material passes through the heating frame 3 at a uniform speed through the conveying device 2, the heat shrink film is heated and shrinks at a suitable temperature and distance, tightly wrapping the material.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heat shrink film packaging bag forming device, comprising a workbench (1), wherein a conveying device (2) is provided inside the workbench (1), and a heating frame (3) is fixedly installed on the rear of the top of the workbench (1), characterized in that: A positioning component (4) is provided at the top of the workbench (1) and in front of the heating frame (3). The positioning component (4) includes a fixing frame (401), a first motor (402), a guide rod (406), and a slide rod (407). The fixing frame (401) is fixedly installed on the outer wall of the workbench (1). The first motor (402) is connected to a moving block (404) and a baffle (405) via a two-way lead screw (403). The slide rod (407) is connected to an operating rod (409) and an adjusting plate (410) via a sliding plate (408). An adjusting heating component (5) is provided inside and at the top of the heating frame (3). The adjusting heating component (5) includes a heating control box (501). The bottom of the heating control box (501) is electrically connected to a heating conduit (502). The outer wall of the heating conduit (502) is slidably connected to the top inner wall of the heating frame (3). Multiple sets of material heating tubes (503) are fixedly connected to the inner wall of (502) and are distributed at equal distances. The multiple sets of material heating tubes (503) are located inside the heating frame (3) and directly above the conveying device (2). A connecting frame (504) is fixedly installed on the top of the heating frame (3). A second motor (505) is fixedly connected to the top of the heating frame (3) and to the right of the connecting frame (504). The output end of the second motor (505) is fixedly connected to the screw (506). The upper end of the screw (506) is rotatably connected to the top inner wall of the connecting frame (504). A sliding groove (507) is provided on the outer wall of the connecting frame (504). A moving part (508) is threadedly connected to the outer wall of the screw (506). The left end of the moving part (508) is slidably connected to the inside of the sliding groove (507). The right end of the moving part (508) is fixedly connected to the top of the heating control box (501).
2. The heat shrink film packaging bag forming device according to claim 1, characterized in that: The first motor (402) is fixedly installed on the right outer wall of the fixing frame (401). One end of the bidirectional lead screw (403) is fixedly connected to the output end of the first motor (402), and the other end of the bidirectional lead screw (403) is rotatably connected to the left inner wall of the fixing frame (401).
3. The heat shrink film packaging bag forming device according to claim 2, characterized in that: The outer wall of the bidirectional lead screw (403) is rotatably connected to the inner right wall of the fixed frame (401). The guide rod (406) is fixedly installed on the inner walls of both sides of the fixed frame (401) and located directly above the bidirectional lead screw (403). Two sets of moving blocks (404) are provided, and the upper inner walls of the two sets of moving blocks (404) are slidably connected to the outer wall of the guide rod (406).
4. The heat shrink film packaging bag forming device according to claim 3, characterized in that: The lower inner walls of the two sets of moving blocks (404) are threaded to the outer wall of the bidirectional lead screw (403). Two sets of baffles (405) are also provided. The two sets of baffles (405) are respectively fixedly connected to the lower outer walls of the two sets of moving blocks (404). The slide rod (407) is fixedly installed on the inner walls of both sides of the fixed frame (401) and located in front of the guide rod (406).
5. The heat shrink film packaging bag forming device according to claim 4, characterized in that: The slide (408), operating lever (409) and adjusting plate (410) are each provided in two sets. The two sets of slides (408) are slidably connected to the outer wall of the slide rod (407). The two sets of operating levers (409) are respectively fixedly connected to the front outer wall of the two sets of slides (408). The two sets of adjusting plates (410) are respectively fixedly connected to the lower surface of the two sets of slides (408).