Vertical packaging machine capable of automatically adjusting film tension

Abstract

The utility model belongs to the technical field of vertical packaging machines, and particularly relates to a vertical packaging machine capable of automatically adjusting film tension, which comprises a vertical packaging machine body, a hopper is mounted at the top end of the vertical packaging machine body, supports are mounted on two side walls, close to the front end, of the vertical packaging machine body, and a packaging film is erected and connected at the top ends of the supports. A fixing block is installed on the inner side wall of the support, and the packaging process is optimized in the following mode that the two sides of a packaging film are clamped through the idler wheels, so that the situation that tension is loosened due to the fact that the packaging film is excessively stretched under the action of traction force is avoided. Meanwhile, the reset spring endows the connecting rod with a certain movement range, and it is ensured that the design does not hinder smooth unfolding and rotation of the packaging film. In conclusion, the function of automatic adjustment is achieved, in addition, potential damage of external factors to the packaging film is effectively reduced through the arrangement of the protective cover, and therefore packaging operation interruption caused by damage is avoided, and normal operation of the packaging process is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of vertical packaging machines, and particularly relates to a vertical packaging machine for automatically adjusting film tension. Background Art

[0002] A vertical packaging machine is a common automated packaging device that is widely used in various industries. The vertical packaging machine is controlled by an automated system to complete various packaging tasks.

[0003] During the packaging process of a vertical packaging machine, tension is a crucial parameter. It determines the degree of stretching of the packaging film, which in turn affects the tightness, stability, and aesthetics of the packaging. Reasonable tension adjustment can ensure that the packaging film maintains stable performance in various links such as transmission, forming, and sealing.

[0004] During the operation of the vertical packaging machine, the packaging film is pulled to the required length and then broken to complete the packaging. However, if the traction force generated during this traction process is not properly managed, it becomes a significant problem. Currently, most vertical packaging machines on the market generally lack an effective fixing mechanism for the packaging film, resulting in the machine often having to continue rotating to overcome the inertia of the traction force when stopping the traction of the packaging film. This process not only causes the packaging film to become slack but also directly leads to a significant decrease in the tension of the packaging film, seriously affecting the tightness and overall quality of the packaging. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a vertical packaging machine for automatically adjusting film tension, aiming to solve the following problems in the prior art: During the operation of the vertical packaging machine, the packaging film is pulled to the required length and then broken to complete the packaging. However, if the traction force generated during this traction process is not properly managed, it becomes a significant problem. Currently, most vertical packaging machines on the market generally lack an effective fixing mechanism for the packaging film, resulting in the machine often having to continue rotating to overcome the inertia of the traction force when stopping the traction of the packaging film. This process not only causes the packaging film to become slack but also directly leads to a significant decrease in the tension of the packaging film, seriously affecting the tightness and overall quality of the packaging.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A vertical packaging machine for automatically adjusting film tension, including a vertical packaging machine body. A hopper is installed at the top of the vertical packaging machine body. Brackets are installed on both side walls of the vertical packaging machine body near the front end. A packaging film is installed on top of the brackets. A fixing block is installed on the inner side wall of the brackets. A sleeve is installed on the outer side wall of the fixing block. A return spring is assembled inside the sleeve. A roller is arranged inside the fixing block. A connecting rod is installed on the surface of the roller. A convex block is installed at the end of the connecting rod.

[0007] Preferably, for a vertical packaging machine for automatically adjusting the film tension of the present utility model, the bump is assembled inside the sleeve, and the roller is connected to the sleeve through a connecting rod and the bump.

[0008] Preferably, for a vertical packaging machine for automatically adjusting the film tension of the present utility model, the return spring forms an elastic telescopic connection between the bump and the connecting rod and the sleeve.

[0009] Preferably, for a vertical packaging machine for automatically adjusting the film tension of the present utility model, the two fixing blocks are at the same height, and the two rollers are clamped on both sides of the packaging film.

[0010] Preferably, for a vertical packaging machine for automatically adjusting the film tension of the present utility model, an electric rod is installed at the top of the bracket, a protective cover is arranged at the top of the bracket and outside the packaging film, and support plates are installed on both sides of the protective cover.

[0011] Preferably, for a vertical packaging machine for automatically adjusting the film tension of the present utility model, the telescopic end of the electric rod is connected to the bottom end of the support plate, and the support plate forms a lifting connection with the bracket through the electric rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The design of the present utility model aims to optimize the packaging process in the following way: the two sides of the packaging film are clamped by the rollers to prevent the packaging film from being overstretched under the traction force and resulting in tension relaxation. At the same time, the return spring gives the connecting rod a certain range of movement to ensure that this design does not interfere with the smooth unfolding and rotation of the packaging film. In summary, the function of automatic adjustment is achieved. In addition, the setting of the protective cover effectively reduces the potential damage of external factors to the packaging film, thus avoiding the interruption of packaging operations caused by breakage and ensuring the normal progress of the packaging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the bottom view of the main structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the installation structure of the fixing block and the roller of the present utility model;

[0018] Figure 4 Schematic diagram of the connection structure between the roller and the sleeve of the present utility model;

[0019] Figure 5 Schematic diagram of the installation structure of the protective cover of the present utility model.

[0020] In the figure: 1, vertical packaging machine body; 2, hopper; 3, packaging film; 4, fixed block; 5, sleeve; 6, connecting rod; 7, roller; 8, return spring; 9, convex block; 10, protective cover; 11, support plate; 12, electric rod; 13, bracket. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0022] Please refer to Figures 1-5 , the present utility model provides the following technical solutions: A vertical packaging machine for automatically adjusting the film tension, including a vertical packaging machine body 1, a hopper 2 is installed at the top of the vertical packaging machine body 1, brackets 13 are installed on both side walls of the vertical packaging machine body 1 near the front end, a packaging film 3 is erected and connected at the top of the brackets 13, a fixed block 4 is installed on the inner side wall of the brackets 13, a sleeve 5 is installed on the outer side wall of the fixed block 4, a return spring 8 is assembled inside the sleeve 5, a roller 7 is arranged inside the fixed block 4, a connecting rod 6 is installed on the surface of the roller 7, and a convex block 9 is installed at the end of the connecting rod 6.

[0023] Preferably in the embodiment: The convex block 9 is assembled inside the sleeve 5, and the roller 7 is connected to the sleeve 5 through the connecting rod 6 and the convex block 9.

[0024] Preferably in the embodiment: The return spring 8 forms an elastic telescopic connection with the sleeve 5 through the convex block 9 and the connecting rod 6.

[0025] Preferably in the embodiment: The two fixed blocks 4 are at the same height, and the two rollers 7 are clamped on both sides of the packaging film 3.

[0026] In the embodiment, the two sides of the packaging film 3 are clamped by the rollers 7 to prevent the packaging film 3 from being overstretched under the traction force and resulting in tension relaxation. At the same time, the return spring 8 gives the connecting rod 6 a certain range of movement to ensure that this design does not prevent the smooth unfolding and rotation of the packaging film 3.

[0027] First, the packaging film 3 is unwound and passed through two rollers 7, which then clamp both sides of the packaging film 3. Next, the packaging film 3 extends downward and combines with the packaging part on the vertical packaging machine body 1. During the operation of the vertical packaging machine body 1, the packaging film 3 is unwound under traction. Whenever a packaging operation is completed, the two rollers 7 will hold and fix the packaging film 3 to prevent it from being overstretched under the action of traction, which may lead to tension relaxation. This process will repeat continuously to carry out the packaging operation.

[0028] In addition, the elastic characteristics of the return spring 8 ensure that the packaging film 3 can rotate and unwind smoothly. The connecting rod 6 is connected to the sleeve 5 through the bump 9 and the return spring 8, realizing the telescopic function, thus preventing the two rollers 7 from clamping too tightly and hindering the smooth unwinding of the packaging film 3.

[0029] In summary, the function of automatically adjusting the tension of the packaging film 3 is realized. Embodiment

[0030] Please refer to Figures 1-5 , an electric rod 12 is installed at the top of the bracket 13, and a protective cover 10 is arranged outside the packaging film 3 at the top of the bracket 13, and support plates 11 are installed on both sides of the protective cover 10.

[0031] Preferably in the embodiment: the telescopic end of the electric rod 12 is connected to the bottom end of the support plate 11, and the support plate 11 forms a lifting connection with the bracket 13 through the electric rod 12.

[0032] In the embodiment, the electric rod 12 serves as the driving core and controls the lifting movement of the protective cover 10. When the electric rod 12 works, it can drive the protective cover 10 to rise or fall. When the protective cover 10 rises, it will open and expose the installation position of the packaging film 3, which is convenient for replacing the packaging film 3 after it is used up. When the protective cover 10 falls, it will block the outside of the packaging film 3, effectively reducing the possible damage to the packaging film 3 caused by external factors, avoiding the interruption of the packaging operation caused thereby, and ensuring the smooth progress of the packaging process.

[0033] In summary, according to the description of Embodiment 1 and Embodiment 2, the utility model clamps the packaging film 3 by the rollers 7 to prevent overstretching, and the return spring 8 ensures the smooth unwinding of the film, thereby realizing automatic tension adjustment. At the same time, the protective cover 10 protects the packaging film 3 from external damage and ensures that the packaging process is not interrupted.

[0034] It should be noted that the vertical packaging machine body 1 belongs to the existing mature technology, and its model of the vertical packaging machine body 1 is: QY - BZJ - 500. At the same time, the technical features described in the text have no obvious connection with the working principle of the vertical packaging machine body 1, so the specific situation of the vertical packaging machine body 1 will not be elaborated too much.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are 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 perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical packaging machine for automatically adjusting film tension, comprising a vertical packaging machine body (1), characterized in that: A hopper (2) is installed at the top of the vertical packaging machine body (1). On both side walls of the vertical packaging machine body (1) near the front end, brackets (13) are installed. A packaging film (3) is installed and connected by being erected at the top of the brackets (13). A fixing block (4) is installed on the inner side wall of the brackets (13). A sleeve (5) is installed on the outer side wall of the fixing block (4). A return spring (8) is assembled inside the sleeve (5). A roller (7) is arranged inside the fixing block (4). A connecting rod (6) is installed on the surface of the roller (7), and a convex block (9) is installed at the end of the connecting rod (6).

2. The vertical packaging machine for automatically adjusting film tension according to claim 1, wherein: The convex block (9) is assembled inside the sleeve (5), and the roller (7) is connected to the sleeve (5) through the connecting rod (6) and the convex block (9).

3. The vertical packaging machine for automatically adjusting film tension according to claim 1, characterized in that: The return spring (8) is elastically telescopically connected to the sleeve (5) through the convex block (9) and the connecting rod (6).

4. The vertical packaging machine for automatically adjusting film tension according to claim 1, wherein: The two fixing blocks (4) are at the same height, and the two rollers (7) are clamped on both sides of the packaging film (3).

5. The vertical packaging machine for automatically adjusting film tension according to claim 1, characterized in that: An electric rod (12) is installed at the top of the bracket (13). A protective cover (10) is arranged at the top of the bracket (13) and outside the packaging film (3). Support plates (11) are installed on both sides of the protective cover (10).

6. The vertical packaging machine for automatically adjusting film tension according to claim 5, characterized in that: The telescopic end of the electric rod (12) is connected to the bottom end of the support plate (11). The support plate (11) is vertically connected to the bracket (13) through the electric rod (12).

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