A guiding device for a packaging film bag making machine

By installing an arc-shaped guide rod on the corner guide plate of the packaging film bag making machine and adjusting its curvature, the problem of stiff steering caused by conventional guide plates was solved, achieving a smooth transition of the packaging film and improving product quality.

CN224426749UActive Publication Date: 2026-06-30JILIN ZHONGYI PHARM PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN ZHONGYI PHARM PACKAGING CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Conventional triangular inclined guide plates cannot achieve a natural and gradual turning transition in packaging film processing, resulting in wrinkles and irregular stacking of flexible films during high-speed transport, which affects the product qualification rate.

Method used

An arc-shaped guide rod is installed on the angle guide plate, and its curvature is adjusted by an adjustment component to provide smooth and progressive steering guidance to accommodate packaging films of different sizes and materials.

Benefits of technology

This reduces wrinkles and skewing at the corners of the packaging film, improving the stability and pass rate of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a guiding device for a packaging film bag making machine, including a corner guide plate. A pair of angle steels are fixedly installed on one side of the corner guide plate, and a guide rod is movably installed between the pair of angle steels via an adjusting component. The corner guide plate has several through holes for accommodating the guide rods. The guide rods pass through the through holes and have an overall arc-shaped structure to guide the packaging film smoothly into the corner area along a preset trajectory. This utility model provides smooth and gradual steering guidance for the packaging film conveying by installing guide rods on the corner guide plate, reducing problems such as wrinkles and skewing caused by trajectory deviation. The guide rods can flexibly change their curvature with the adjusting component to adapt to packaging films of different specifications and materials, meeting diverse corner-folding process requirements.
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Description

Technical Field

[0001] This utility model relates to the field of packaging film processing, specifically a guiding device for a packaging film bag making machine. Background Technology

[0002] In the field of packaging film processing, the corner folding process is one of the key steps in achieving packaging film formation, and its processing quality directly affects the appearance, sealing performance, and usability of the final product. Currently, in the packaging film corner folding process, the corner guide plate is the core component guiding the formation of the packaging film. Conventional equipment mostly uses triangular inclined corner guide plates, which rely on the fixed inclination angle of the hypotenuse of the triangle to guide the film's direction.

[0003] However, the guiding trajectory of a conventional triangular inclined corner guide is a rigid straight inclined path. When the film enters the corner area, it cannot achieve a natural and gradual turning transition. For thinner flexible films, their own tension is weak, making it difficult to tightly adhere to the inclined surface of the guide. During high-speed transport, local slack is prone to occur, which in turn forms irregular stacking at the corner, producing wrinkles and significantly reducing the product qualification rate. Utility Model Content

[0004] The purpose of this utility model is to provide a guiding device for a packaging film bag making machine, so as to solve the problem mentioned in the background art that the conventional angled guide plate has a fixed tilt angle, resulting in a rigid conveying trajectory of the packaging film.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a guiding device for a packaging film bag making machine, including a corner guide plate, a pair of angle steels fixedly installed on one side of the corner guide plate, a guide rod movably installed between the pair of angle steels through an adjusting component, a plurality of through holes for accommodating the guide rods on the corner guide plate, the guide rods passing through the through holes and having an overall arc-shaped structure, so as to guide the packaging film smoothly into the corner area along a preset trajectory.

[0006] Preferably, the adjusting assembly includes a pair of positioning blocks fixedly connected to the angle steel, the pair of positioning blocks being fixedly connected by a guide rod, and a bidirectional screw being rotatably mounted above the guide rod. A pair of sliders are slidably mounted on the bidirectional screw and the guide rod, the sliders being threadedly connected to the bidirectional screw, and the guide rod being connected to the sliders.

[0007] Preferably, the bidirectional screw has a hexagonal structure at its central position.

[0008] Preferably, the opposing surfaces of the pair of sliders are provided with cavities for accommodating the guide rods, and one side wall of the cavity is provided with a limiting hole adapted to the guide rods.

[0009] Preferably, the angle steel has several round holes, and the positioning block is locked to one side of the angle steel by bolts.

[0010] Preferably, one side of the positioning block is provided with an inclined structure adapted to the angle steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention provides smooth and gradual steering guidance for the conveying of packaging film by installing guide rods on the angle guide plate, reducing problems such as wrinkles and skewing caused by trajectory deviation. The guide rods can be adjusted with the adjustment components to flexibly change the curvature to adapt to packaging films of different specifications and materials, thereby improving the stability of product quality. Attached Figure Description

[0013] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a partial three-dimensional structural diagram of the entire utility model from a second perspective;

[0015] Figure 3 This is a schematic diagram of the overall top-view planar structure of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the adjustment component and guide rod assembly of this utility model;

[0017] Figure 5 This is a partially enlarged three-dimensional structural diagram of the adjustment component of this utility model.

[0018] In the diagram: 1. Angle guide plate; 2. Angle steel; 3. Through hole; 4. Positioning block; 5. Slider; 6. Two-way screw; 7. Guide rod; 8. Limiting hole. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-3This utility model provides a technical solution: a guiding device for a packaging film bag making machine, including a folding guide plate 1, which has a triangular structure. A pair of angle steels 2 are fixedly installed on one side of the folding guide plate 1. The angle steels 2 are welded to one side of the folding guide plate 1. A guide rod 7 is movably installed between the pair of angle steels 2 through an adjusting component. The guide rod 7 has elasticity and toughness. The folding guide plate 1 is provided with several through holes 3 for accommodating the guide rod 7. The through holes 3 can prevent the guide rod 7 from swinging. The guide rod 7 passes through the through holes 3 and has an overall arc-shaped structure so as to guide the packaging film smoothly into the folding area along a preset trajectory. The arc-shaped structure of the guide rod 7 makes a smooth transition with the packaging film, which allows the packaging film to naturally complete the turning during the conveying process and reduces problems such as wrinkles and skewing caused by trajectory deviation.

[0021] Please see Figures 2-5 The adjustment assembly includes a pair of positioning blocks 4 fixedly connected to the angle steel 2. The angle steel 2 has several round holes. The positioning blocks 4 are bolted to one side of the angle steel 2. This design allows the curvature of the guide rod 7 to be changed by adjusting the position of the positioning blocks 4 on the angle steel 2, thus quickly adapting to various packaging film specifications. One side of the positioning blocks 4 is designed with an inclined structure to fit the angle steel 2, ensuring a tight fit. The pair of positioning blocks 4 are fixedly connected by a guide rod, and a bidirectional screw 6 is rotatably mounted above the guide rod. The bidirectional screw 6 has a hexagonal structure at its center, allowing the user to adjust the spacing between the pair of sliders 5 by rotating the bidirectional screw 6 with a tool. A pair of sliders 5 are slidably mounted on the bidirectional screw 6 and the guide rod. The sliders 5 are threadedly connected to the bidirectional screw 6. The guide rod 7 is connected to the sliders 5. The opposite surfaces of the pair of sliders 5 are provided with cavities for accommodating the guide rod 7. One side wall of the cavity is provided with a limiting hole 8 that matches the guide rod 7. The end of the guide rod 7 is designed with a T-shaped structure. The cavity, in conjunction with the limiting hole 8 on one side wall, can constrain the guide rod 7 from multiple directions, preventing it from shifting or shaking when the packaging film is running or under stress.

[0022] When the bidirectional screw 6 is rotated, the pair of sliders 5 threaded to it will slide synchronously relative to each other along the guide rod (i.e., the distance between them increases or decreases). Since the end of the guide rod 7 extends into the cavity of the slider 5, the change in the distance between the sliders will cause the curvature of the guide rod 7 to change. The larger the distance between the sliders 5, the gentler the curvature of the guide rod 7; the smaller the distance, the more the curvature protrudes from the plane of the angled guide plate 1, so that the guide rod 7 can adapt to the conveying requirements of packaging films of different specifications.

[0023] This application provides smooth and gradual steering guidance for the conveying of packaging film by installing guide rods 7 on the angle guide plate 1, reducing problems such as wrinkles and skewing caused by trajectory deviation. The guide rods 7 can be used with the adjustment components to flexibly change the curvature to adapt to packaging films of different specifications and materials, thereby improving the stability of product quality.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] 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 guiding device of a packaging film bagging machine, comprising a corner folding guide (1), characterized in that: A pair of angle steels (2) are fixedly installed on one side of the angle guide plate (1). A guide rod (7) is movably installed between the pair of angle steels (2) through an adjustment component. The angle guide plate (1) is provided with several through holes (3) for accommodating the guide rod (7). The guide rod (7) passes through the through holes (3) and has an overall arc structure so as to guide the packaging film to smoothly enter the angle area along a preset trajectory.

2. A guide for a bag machine for a packaging film according to claim 1, characterized in that The adjustment assembly includes a pair of positioning blocks (4) fixedly connected to the angle steel (2), the pair of positioning blocks (4) are fixedly connected by a guide rod, and a bidirectional screw (6) is rotatably installed above the guide rod. A pair of sliders (5) are slidably installed on the bidirectional screw (6) and the guide rod. The sliders (5) are threadedly connected to the bidirectional screw (6), and the guide rod (7) is connected to the sliders (5).

3. A guide for a bag machine for a packaging film as claimed in claim 2, characterized in that: The bidirectional screw (6) has a hexagonal structure at its central position.

4. A guide for a bag machine for a packaging film according to claim 2, characterized in that: The opposing surfaces of the pair of sliders (5) are provided with cavities for accommodating the guide rod (7), and one side wall of the cavity is provided with a limiting hole (8) that is adapted to the guide rod (7).

5. A guide for a bag machine for a packaging film as defined in claim 2, characterized in that The angle steel (2) has several round holes, and the positioning block (4) is locked to one side of the angle steel (2) by bolts.

6. A guide for a bag machine for a packaging film according to claim 2, characterized in that: One side of the positioning block (4) is designed with an inclined structure that is compatible with the angle steel (2).