Efficient bag making machine for plastic film production

By combining the lifting components and the pressure plate, the problem of adhesion between the heat sealing device and the plastic film was solved, achieving a highly efficient and stable heat sealing process for the plastic film.

CN223803187UActive Publication Date: 2026-01-16SUZHOU YUNSHUN NEW PACKING CO LTD
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Patent Information

Application Number
CN202520172732.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2026-01-16
Estimated Expiration
2035-01-26

AI Technical Summary

Technical Problem

During the heat sealing process of plastic film, the heat sealing device is prone to sticking to the plastic film, which affects normal transportation.

Method used

A lifting assembly drives the heat-sealing assembly to move downwards, causing the auxiliary assembly to contact the plastic film before the heat-sealing assembly for heat sealing. Then, the lifting assembly drives the heat-sealing assembly to move upwards to avoid adhesion. At the same time, the pressure plate design allows it to contact the plastic film before the heat-sealing plate and to move away after the heat-sealing plate leaves, preventing adhesion.

Benefits of technology

This improves the stability of high-efficiency bag-making machines used in plastic film production, avoids adhesion of plastic film to the heat-sealing device, and ensures normal conveying.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223803187U_ABST
    Figure CN223803187U_ABST
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Abstract

The utility model discloses an efficient bag making machine for plastic film production, and relates to the technical field of plastic film production. The device comprises a support frame. The lifting assembly is started to drive the heat sealing assembly to move downwards, so that the lifting assembly can drive the auxiliary assembly arranged on the outer surface in a sliding mode to make contact with the top end of a plastic film before the heat sealing assembly in the moving process, and along with continuous movement of the heat sealing assembly, the bottom end of the heat sealing assembly conducts heat sealing treatment on the plastic film; then the lifting assembly is started again to drive the heat sealing assembly to move upwards so that the heat sealing assembly can move earlier than the auxiliary assembly, and when the bottom end of the heat sealing assembly is separated from the top end of the plastic film, the auxiliary assembly moves along with continuous movement of the heat sealing assembly and is separated from the top end of the plastic film; and adhesion of the plastic film caused by the high temperature of the heat sealing assembly is avoided, and therefore the stability of the efficient bag making machine for plastic film production is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plastic film production, specifically, and particularly relates to a high -efficient bag making machine for plastic film production. BACKGROUND

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a film layer. Plastic packaging and plastic packaging products account for an increasingly large share of the market, especially composite plastic soft packaging, which has been widely used in food, medicine, chemical industry and other fields, of which food packaging accounts for the largest proportion, such as beverage packaging, frozen food packaging, steamed food packaging, fast food packaging and other products, which have brought great convenience to people's life.

[0003] By cutting, heat sealing and forming inside the bag making machine, plastic bags of different shapes and specifications are produced, but when heat sealing the plastic film, the heat sealing device is prone to sticking to the plastic film. Since the plastic film is clamped by two groups of conveying belts, it is conveyed by friction force, and then after heat sealing is completed, the heat sealing device is prone to moving the plastic film, which affects the normal conveying of the plastic film.

[0004] In view of the problems in the related art, no effective solution has been proposed so far. INVENTION CONTENTS

[0005] In view of the problems in the related art, the utility model provides a high -efficient bag making machine for plastic film production to overcome the above technical problems existing in the prior art.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0007] The utility model is a kind of high -efficient bag making machine for plastic film production, including support frame:

[0008] The support frame is respectively provided with machine body assembly, lifting assembly, heat sealing assembly and auxiliary assembly;

[0009] The bottom end of the machine body assembly is fixedly installed with the top end of the support frame, so that the machine body assembly can be away from the ground;

[0010] The lifting end of the lifting assembly is fixedly installed with one side of the heat sealing assembly, so that the lifting assembly drives the heat sealing assembly to heat seal the plastic film;

[0011] The auxiliary assembly is slidably arranged inside and on the outer surface of the heat sealing assembly, so that the auxiliary assembly can press the plastic film after heat sealing.

[0012] Further, the machine body assembly comprises a mounting plate, the bottom end of the mounting plate is fixedly installed with the top end of the support frame, the top end of the mounting plate is fixedly installed with an unwinding device, the top end of the mounting plate is fixedly installed with a guide roller, and the top end of the mounting plate is fixedly installed with a winding device.

[0013] Further, the lifting assembly comprises a fixed frame plate, one side of the fixed frame plate is fixedly installed with one side of the mounting plate, one side of the fixed frame plate is fixedly connected with a mounting frame, the top end of the mounting frame is fixedly installed with an electric push rod, the telescopic end of the electric push rod is fixedly installed with a sliding block, and the outer surface of the sliding block is slidably connected with the inner portion of the fixed frame plate.

[0014] Further, the heat sealing assembly comprises a connecting plate, one side of the connecting plate is fixedly installed with one side of the sliding block, the inner portion of the connecting plate is fixedly installed with a mounting rod, and the bottom end of the mounting rod is fixedly installed with a heat sealing plate.

[0015] Further, the auxiliary assembly comprises a connecting frame, the inner portion of the connecting frame is slidably arranged with the outer surface of the mounting rod, the top end of the connecting frame is fixedly connected with a spring, the top end of the spring is fixedly connected with the bottom end of the connecting plate, and the bottom end of the connecting frame is fixedly installed with a pressing plate.

[0016] Further, the inner portion of the fixed frame plate is provided with a limiting groove, the inner portion of the limiting groove is slidably arranged with a limiting block, and one side of the limiting block is fixedly connected with one side of the sliding block.

[0017] Further, the top end of the mounting plate is fixedly installed with a backing plate.

[0018] The utility model has the advantages of the following beneficial effects:

[0019] 1、 the utility model discloses a heat sealing assembly is driven to move downwards to the lifting assembly is started to drive, can drive the auxiliary assembly of the outer surface sliding arrangement to contact the top of plastic film first with heat sealing assembly in the moving process, with the continuous movement of heat sealing assembly, makes its bottom heat sealing treatment to plastic film, then starts the lifting assembly again, makes it drive heat sealing assembly to move upwards, to make it move first auxiliary assembly when the bottom of heat sealing assembly and the top of plastic film are separated and fit, make auxiliary assembly move with the continuous movement of heat sealing assembly and separate the top of plastic film, to avoid the high temperature of heat sealing assembly to cause the adhesion of plastic film, thereby improved the stability of the high -efficient bag making machine of plastic film production.

[0020] 2. This utility model uses a mounting rod and a spring fixed at the bottom of the connecting plate to move the connecting frame, so that it can drive the pressure plate installed at the bottom to press and fix the plastic film. Since the bottom of the pressure plate is lower than the bottom of the heat sealing plate, when the pressure plate and the heat sealing plate move downward at the same time, the pressure plate can contact the top of the plastic film before the heat sealing plate, and can also move away after the heat sealing plate leaves the top of the plastic film, thereby avoiding the plastic film from sticking due to the high temperature of the heat sealing plate.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention in its working state;

[0025] Figure 3 This is a schematic diagram of the structure of this utility model from a rear-view perspective;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention from a right-side view.

[0027] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the local structure at point A;

[0028] Figure 6 For the present utility model Figure 4 An enlarged schematic diagram of the local structure at point B.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Support frame; 2. Machine body assembly; 201. Mounting plate; 202. Unwinding device; 203. Guide roller; 204. Rewinding device; 3. Lifting assembly; 301. Fixed frame plate; 302. Mounting frame; 303. Electric push rod; 304. Slider; 4. Heat sealing assembly; 401. Connecting plate; 402. Mounting rod; 403. Heat sealing plate; 5. Auxiliary assembly; 501. Connecting frame; 502. Spring; 503. Pressure plate; 6. Limiting groove; 7. Limiting block; 8. Pad plate. DETAILED DESCRIPTION

[0031] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0032] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0033] Please refer to Figures 1-6 The utility model discloses a kind of high-efficiency bag making machines for plastic film production, including support frame 1:

[0034] The support frame 1 is respectively provided with organism assembly 2, lifting assembly 3, heat sealing assembly 4 and auxiliary assembly 5;

[0035] The bottom end of the organism assembly 2 is fixedly installed with the top end of the support frame 1, so that the organism assembly 2 can be away from the ground;

[0036] The lifting end of the lifting assembly 3 is fixedly installed with one side of the heat sealing assembly 4, so that the lifting assembly 3 drives the heat sealing assembly 4 to heat seal processing plastic film;

[0037] The inside of the auxiliary assembly 5 is slidably arranged with the outer surface of the heat sealing assembly 4, so that the auxiliary assembly 5 can compact plastic film after heat sealing processing.

[0038] In use, by winding the plastic film around the outer surface of the body assembly 2, and intermittently driving the plastic film to move a fixed distance, when the plastic film is intermittently stopped, the lifting assembly 3 is started to drive the heat sealing assembly 4 to move downward, so that the auxiliary assembly 5 slidingly arranged on the outer surface can be contacted with the top end of the plastic film before the heat sealing assembly 4, and with the continuous movement of the heat sealing assembly 4, the bottom end of the heat sealing assembly 4 can heat seal the plastic film, and then the lifting assembly 3 is started again to drive the heat sealing assembly 4 to move upward, so that the heat sealing assembly 4 can move before the auxiliary assembly 5, and when the bottom end of the heat sealing assembly 4 is separated from the top end of the plastic film, the auxiliary assembly 5 can move with the continuous movement of the heat sealing assembly 4, so that the two heat sealing marks are a group of plastic bags, and the body assembly 2 can drive the plastic film to move again, and the above steps are repeated in turn to complete the processing of the plastic bag.

[0039] The lifting assembly 3 is started to drive the heat sealing assembly 4 to move downward, so that the auxiliary assembly 5 slidingly arranged on the outer surface can be contacted with the top end of the plastic film before the heat sealing assembly 4, and with the continuous movement of the heat sealing assembly 4, the bottom end of the heat sealing assembly 4 can heat seal the plastic film, and then the lifting assembly 3 is started again to drive the heat sealing assembly 4 to move upward, so that the heat sealing assembly 4 can move before the auxiliary assembly 5, and when the bottom end of the heat sealing assembly 4 is separated from the top end of the plastic film, the auxiliary assembly 5 can move with the continuous movement of the heat sealing assembly 4, so that the two heat sealing marks are a group of plastic bags, and the body assembly 2 can drive the plastic film to move again, and the above steps are repeated in turn to complete the processing of the plastic bag.

[0040] In one embodiment, for the above-mentioned body assembly 2, the body assembly 2 comprises a mounting plate 201, the bottom end of the mounting plate 201 is fixedly installed with the top end of the support frame 1, the top end of the mounting plate 201 is fixedly installed with an unwinding device 202, the top end of the mounting plate 201 is fixedly installed with a guide roller 203, and the top end of the mounting plate 201 is fixedly installed with a winding device 204.

[0041] By winding the plastic film around the outer surface of the unwinding device 202, the guide roller 203 and the winding device 204 in turn, the winding device 204 can drive the plastic film to move along the direction of the guide roller 203, so as to guide the moving direction of the plastic film.

[0042] In an embodiment, for the above-mentioned lifting assembly 3, the lifting assembly 3 comprises a fixed rack plate 301, one side of the fixed rack plate 301 is fixedly installed with one side of the mounting plate 201, one side of the fixed rack plate 301 is fixedly connected with a mounting rack 302, the top end of the mounting rack 302 is fixedly installed with an electric push rod 303, the telescopic end of the electric push rod 303 is fixedly installed with a sliding block 304, and the outer surface of the sliding block 304 is in sliding connection with the inner part of the fixed rack plate 301.

[0043] By starting the electric push rod 303 to drive the sliding block 304 installed at the telescopic end to move, it can move along the direction of the fixed rack plate 301, thereby improving the stability of the sliding block 304 during movement.

[0044] In an embodiment, for the above-mentioned heat sealing assembly 4, the heat sealing assembly 4 comprises a connecting plate 401, one side of the connecting plate 401 is fixedly installed with one side of the sliding block 304, the inner part of the connecting plate 401 is fixedly installed with a mounting rod 402, and the bottom end of the mounting rod 402 is fixedly installed with a heat sealing plate 403.

[0045] When the sliding block 304 moves, it can drive the connecting plate 401 installed on one side to move, so as to drive the mounting rod 402 installed inside to move, and when the mounting rod 402 moves, it can drive the heat sealing plate 403 installed at the bottom end to heat seal and process the plastic film.

[0046] In an embodiment, for the above-mentioned auxiliary assembly 5, the auxiliary assembly 5 comprises a connecting rack 501, the inner part of the connecting rack 501 is in sliding arrangement with the outer surface of the mounting rod 402, the top end of the connecting rack 501 is fixedly connected with a spring 502, the top end of the spring 502 is fixedly connected with the bottom end of the connecting plate 401, and the bottom end of the connecting rack 501 is fixedly installed with a pressing plate 503.

[0047] When the mounting rod 402 moves, it can drive the connecting rack 501 to move in cooperation with the spring 502 fixed at the bottom end of the connecting plate 401, so as to drive the pressing plate 503 installed at the bottom end to press and fix the plastic film, and since the bottom end of the pressing plate 503 is lower than the bottom end of the heat sealing plate 403, when the pressing plate 503 and the heat sealing plate 403 move downward at the same time, the pressing plate 503 can be in contact with the top end of the plastic film before the heat sealing plate 403, and it can leave the top end of the plastic film after the heat sealing plate 403 leaves, thereby avoiding the plastic film from being adhered due to the high temperature of the heat sealing plate 403.

[0048] In one embodiment, for the above-mentioned fixed frame plate 301, the inside of the fixed frame plate 301 is provided with a limiting groove 6, the inside of the limiting groove 6 is slidably provided with a limiting block 7, one side of the limiting block 7 is fixedly connected with one side of the sliding block 304.

[0049] When the sliding block 304 moves, the limiting block 7 fixedly connected with one side of the sliding block 304 also moves. Since the outer surface of the limiting block 7 is slidably arranged in the limiting groove 6, and the limiting groove 6 is arranged in the inside of the fixed frame plate 301, when the limiting block 7 moves, it can move along the direction of the limiting groove 6, thereby improving the stability of the sliding block 304 during movement.

[0050] In one embodiment, for the above-mentioned mounting plate 201, the top end of the mounting plate 201 is fixedly provided with a backing plate 8.

[0051] The backing plate 8 is arranged on the lower side of the heat sealing plate 403, so that it can support the plastic film, thereby improving the stability of the plastic film during heat sealing processing.

[0052] Through the above technical solution, 1. By starting the lifting assembly 3 to drive the heat sealing assembly 4 to move downward, so that the outer surface of the auxiliary assembly 5 slidably arranged can be contacted with the top end of the plastic film before the heat sealing assembly 4 during movement. With the continuous movement of the heat sealing assembly 4, the bottom end of the heat sealing assembly 4 can heat seal the plastic film, and then the lifting assembly 3 is started again to drive the heat sealing assembly 4 to move upward, so that the heat sealing assembly 4 can move before the auxiliary assembly 5. When the bottom end of the heat sealing assembly 4 is separated from the top end of the plastic film, the auxiliary assembly 5 can move with the continuous movement of the heat sealing assembly 4 and be separated from the top end of the plastic film, so as to avoid the high temperature of the heat sealing assembly 4 from causing the plastic film to be adhered, thereby improving the stability of the high-efficiency bag making machine for plastic film production;

[0053] 2. By means of the spring 502 fixedly arranged at the bottom end of the connecting plate 401 cooperating with the mounting rod 402 to drive the connecting frame 501 to move, so that the pressing plate 503 fixedly arranged at the bottom end can press and fix the plastic film. Since the bottom end of the pressing plate 503 is lower than the bottom end of the heat sealing plate 403, when the pressing plate 503 and the heat sealing plate 403 move downward at the same time, the pressing plate 503 can be contacted with the top end of the plastic film before the heat sealing plate 403, and can be separated from the top end of the plastic film after the heat sealing plate 403 is separated from the top end of the plastic film, thereby avoiding the high temperature of the heat sealing plate 403 from causing the plastic film to be adhered.

[0054] In the description of the application, references to "one embodiment", "an example", "certain examples" etc. mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example" or "certain examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0055] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all of the details of the application, nor limit the application to the specific embodiments described. Obviously, many modifications and variations of the application can be made in light of the teachings above. The embodiments are chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application. The application is merely exemplary and limited by the scope of the appended claims as well as the equivalents thereof.

Claims

1. An efficient bag making machine for plastic film production, comprising a support frame (1), characterized in that: the support frame (1) is provided with a machine body assembly (2), a lifting assembly (3), a heat sealing assembly (4) and an auxiliary assembly (5) respectively; the bottom end of the machine body assembly (2) is fixedly installed with the top end of the support frame (1), so that the machine body assembly (2) can be away from the ground; the lifting end of the lifting assembly (3) is fixedly installed with one side of the heat sealing assembly (4), so that the lifting assembly (3) drives the heat sealing assembly (4) to heat seal the plastic film; the inside of the auxiliary assembly (5) is slidably provided with the outer surface of the heat sealing assembly (4), so that the auxiliary assembly (5) can press the plastic film after heat sealing.

2. The high efficiency bag making machine for plastic film production according to claim 1, characterized in that, the machine body assembly (2) comprises an installation plate (201), the bottom end of the installation plate (201) is fixedly installed with the top end of the support frame (1), the top end of the installation plate (201) is fixedly installed with an unwinding device (202), the top end of the installation plate (201) is fixedly installed with a guide roller (203), and the top end of the installation plate (201) is fixedly installed with a winding device (204).

3. The high efficiency bag making machine for plastic film production according to claim 2, characterized in that, the lifting assembly (3) comprises a fixed frame plate (301), one side of the fixed frame plate (301) is fixedly installed with one side of the installation plate (201), one side of the fixed frame plate (301) is fixedly connected with a mounting frame (302), the top end of the mounting frame (302) is fixedly installed with an electric push rod (303), the telescopic end of the electric push rod (303) is fixedly installed with a sliding block (304), and the outer surface of the sliding block (304) is slidably connected with the inside of the fixed frame plate (301).

4. The high efficiency bag making machine for plastic film production according to claim 3, characterized in that, the heat sealing assembly (4) comprises a connecting plate (401), one side of the connecting plate (401) is fixedly installed with one side of the sliding block (304), the inside of the connecting plate (401) is fixedly installed with a mounting rod (402), and the bottom end of the mounting rod (402) is fixedly installed with a heat sealing plate (403).

5. The high efficiency bag making machine for plastic film production according to claim 4, characterized in that, the auxiliary assembly (5) comprises a connecting frame (501), the inside of the connecting frame (501) is slidably provided with the outer surface of the mounting rod (402), the top end of the connecting frame (501) is fixedly connected with a spring (502), the top end of the spring (502) is fixedly connected with the bottom end of the connecting plate (401), and the bottom end of the connecting frame (501) is fixedly installed with a pressing plate (503).

6. The high efficiency bag making machine for plastic film production as claimed in claim 3, wherein, the inside of the fixed frame plate (301) is provided with a limiting groove (6), the inside of the limiting groove (6) is slidably provided with a limiting block (7), and one side of the limiting block (7) is fixedly connected with one side of the sliding block (304).

7. The high efficiency bag making machine for plastic film production as claimed in claim 2 wherein, the top end of the installation plate (201) is fixedly installed with a backing plate (8).