Film blowing machine with upper traction structure

Abstract

The utility model relates to the technical field of film blowing machines, and discloses a film blowing machine with an upper traction structure, which comprises a film blowing machine main body, one side of the film blowing machine main body is provided with a motor box, the inside of the motor box is fixedly connected with a height adjusting mechanism, the lower surface of the inner wall of the film blowing machine main body is provided with a base, and the upper traction structure is arranged on the base. And two connecting blocks are fixedly connected to the surface of the base. According to the film blowing machine with the upper traction structure, through the arrangement of the height adjusting mechanism, when the film blowing machine is used, a driving motor in a motor box can be started, and the driving motor drives a lead screw at the tail end to rotate, so that a moving plate in threaded connection with the surface of the lead screw moves up and down on the lead screw; and the height of the traction roller connected with one side of the movable plate can be adjusted according to actual requirements, adjustment of the tension of the thin film is achieved, therefore, diversified production requirements are met, and the use flexibility of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a blown film machine with an upper traction structure. Background Technology

[0002] In the plastics processing industry, blown film machines are key equipment for producing various film products, and their performance and processing quality directly affect the quality of the film products and production efficiency. With the continuous growth of market demand for higher quality and greater diversity of film products, higher requirements are being placed on the technological improvement and innovation of blown film machines; traditional blown film machines with an upper traction structure have revealed some problems that urgently need to be solved in actual production.

[0003] Regarding the height of the traction rollers, existing blown film machines often have fixed or limited adjustable heights. However, different types and specifications of plastic films have different requirements for traction roller height during production due to differences in raw material characteristics, thickness requirements, and process parameters. For example, thicker films may require higher traction rollers during the traction process to ensure sufficient stretching space and appropriate tension distribution, thus avoiding problems such as uneven stretching and excessive thickness deviation. Conversely, for some thin and easily deformable films, lower traction roller heights provide better control over film orientation and forming effects. Fixed-height traction rollers cannot flexibly adapt to these diverse production needs, limiting the blown film machine's ability to process different products and reducing the equipment's versatility and applicability. Utility Model Content

[0004] The purpose of this invention is to provide a blown film machine with an upper traction structure, which solves the problem in the background art that the fixed-height traction roller cannot flexibly adapt to these diverse production needs, thus limiting the blown film machine's ability to process different products and reducing the equipment's versatility and applicability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A blown film machine with an upper traction structure includes a blown film machine body, a motor housing installed on one side of the blown film machine body, a height adjustment mechanism fixedly connected inside the motor housing, a base provided on the lower surface of the inner wall of the blown film machine body, two connecting blocks fixedly connected to the surface of the base, a motor box fixedly connected to the surface of one of the connecting blocks, an anti-deviation mechanism fixedly connected inside the motor box, the height adjustment mechanism including a drive motor fixedly connected inside the motor housing, a lead screw fixedly connected to the bottom of the drive motor, a moving plate threadedly connected to the surface of the lead screw, a motor compartment fixedly connected to one side of the moving plate, a servo motor fixedly connected inside the motor compartment, and a traction roller fixedly connected to the output end of the servo motor; the anti-deviation mechanism including a rotating motor fixedly connected inside the motor box, a forward and reverse lead screw fixedly connected to the output end of the rotating motor, a threaded block threadedly connected to the surface of the forward and reverse lead screw, an electric push rod fixedly connected to the top of the threaded block, and an arc-shaped limiting plate fixedly connected to the top of the electric push rod.

[0006] As a further embodiment of this utility model, a rotating shaft is rotatably connected to one side of the traction roller, and a fixing plate is fixedly connected to one side of the rotating shaft. The fixing plate serves to fix the rotating shaft.

[0007] As a further embodiment of this utility model, two limiting holes are provided on the surface of the fixing plate, and a limiting rod is slidably connected inside the limiting holes. The limiting rod serves to limit the position of the fixing plate.

[0008] As a further embodiment of this utility model, a ventilation opening is provided on the top of the blown film machine body, and a filter box is installed inside the ventilation opening. The filter box is designed to absorb odors.

[0009] As a further embodiment of this utility model, two activated carbon layers are installed inside the filter box, and two rotating interfaces are fixedly connected to one side of the activated carbon layers. The rotating interfaces serve to connect and limit the posts.

[0010] As a further embodiment of this utility model, a limiting post is rotatably connected to the surface of the rotating interface, and a positioning block is inserted into the surface of the limiting post. The positioning block serves to limit the position of the limiting post.

[0011] As a further embodiment of this utility model, two limiting blocks are fixedly connected to the bottom of the threaded block. The limiting blocks are slidably connected to the inside of the slide rail opened on the surface of the base. The limiting blocks are used to limit the movement of the threaded block.

[0012] This utility model provides a blown film machine with an upper traction structure, which has the following beneficial effects:

[0013] 1. This blown film machine with an upper traction structure, through the setting of a height adjustment mechanism, allows the drive motor inside the motor box to be started during use. The drive motor drives the lead screw at the end to rotate, causing the moving plate threaded on the lead screw to move up and down on the lead screw. This, in turn, drives the traction roller connected to one side of the moving plate to achieve the effect of height adjustment. The height of the traction roller can be adjusted according to actual needs to achieve film tension adjustment, thereby meeting diverse production needs and improving the flexibility of equipment use.

[0014] 2. This blown film machine with an upper traction structure, through the setting of an anti-deviation mechanism, adjusts the height of the two arc-shaped limiting plates according to the height of the traction roller during use. This allows the arc-shaped limiting plates to limit the movement trajectory of the film on both sides of the traction roller. It can also start the bottom rotating motor, which drives the positive and negative lead screws to rotate, causing the two arc-shaped limiting plates mounted on the surface of the positive and negative lead screws to move relative to each other. This achieves the limitation of films of different sizes and prevents the film from deviating during the traction process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the height adjustment mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the anti-deviation mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the filter box structure of this utility model.

[0019] In the diagram: 1. Main body of the blown film machine; 2. Motor box; 3. Height adjustment mechanism; 301. Drive motor; 302. Lead screw; 303. Moving plate; 304. Motor compartment; 305. Servo motor; 306. Traction roller; 4. Base; 5. Connecting block; 6. Motor box; 7. Anti-deviation mechanism; 701. Rotating motor; 702. Positive and negative lead screws; 703. Threaded block; 704. Electric push rod; 705. Arc-shaped limiting plate; 8. Rotating shaft; 9. Fixing plate; 10. Limiting rod; 11. Filter box; 12. Activated carbon layer; 13. Rotating interface; 14. Limiting column; 15. Positioning block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a blown film machine with an upper traction structure, including a blown film machine body 1, a motor box 2 installed on one side of the blown film machine body 1, and a height adjustment mechanism 3 fixedly connected inside the motor box 2. The height adjustment mechanism 3 drives a traction roller 306 connected to one side of a moving plate 303 to adjust its height. The height of the traction roller 306 can be adjusted according to actual needs to regulate film tension, thereby meeting diverse production requirements and improving the flexibility of equipment use. A base 4 is provided on the lower surface of the inner wall of the blown film machine body 1. Two connecting blocks 5 are fixedly connected to the surface of the base 4. A motor box 6 is fixedly connected to the surface of one of the connecting blocks 5. An anti-deviation mechanism 7 is fixedly connected inside the motor box 6 to prevent the film from deviating during traction.

[0022] The height adjustment mechanism 3 includes a drive motor 301 fixedly connected inside the motor housing 2. A lead screw 302 is fixedly connected to the bottom of the drive motor 301. A moving plate 303 is threadedly connected to the surface of the lead screw 302. A motor compartment 304 is fixedly connected to one side of the moving plate 303. A servo motor 305 is fixedly connected inside the motor compartment 304. A traction roller 306 is fixedly connected to the output end of the servo motor 305.

[0023] The anti-deviation mechanism 7 includes a rotating motor 701 fixedly connected inside the motor box 6. The output end of the rotating motor 701 is fixedly connected to a positive and negative lead screw 702. A threaded block 703 is threadedly connected to the surface of the positive and negative lead screw 702. An electric push rod 704 is fixedly connected to the top of the threaded block 703. An arc-shaped limiting plate 705 is fixedly connected to the top of the electric push rod 704.

[0024] A rotating shaft 8 is rotatably connected to one side of the traction roller 306, and a fixing plate 9 is fixedly connected to one side of the rotating shaft 8. The fixing plate 9 serves to fix the rotating shaft 8.

[0025] Two limiting holes are provided on the surface of the fixing plate 9. A limiting rod 10 is slidably connected inside the limiting holes. The limiting rod 10 serves to limit the position of the fixing plate 9.

[0026] The top of the blown film machine body 1 is provided with a ventilation opening, and a filter box 11 is installed inside the ventilation opening. The filter box 11 is designed to absorb odors.

[0027] The filter box 11 has two activated carbon layers 12 installed inside. Two rotating interfaces 13 are fixedly connected to one side of the activated carbon layer 12. The rotating interfaces 13 serve to connect the limiting column 14.

[0028] The surface of the rotating interface 13 is rotatably connected to a limit post 14, and a positioning block 15 is inserted into the surface of the limit post 14. The positioning block 15 serves to limit the position of the limit post 14.

[0029] Two limiting blocks are fixedly connected to the bottom of the threaded block 703. The limiting blocks are slidably connected to the inside of the slide rail opened on the surface of the base 4. The limiting blocks play a role in limiting the threaded block 703.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When using it, the drive motor 301 inside the motor box 2 can be started. The drive motor 301 drives the lead screw 302 at the end to rotate, so that the moving plate 303 connected to the thread on the surface of the lead screw 302 moves up and down on the lead screw 302.

[0032] The second step: During use, adjust the height of the two arc-shaped limiting plates 705 according to the height of the traction roller 306, so that the arc-shaped limiting plates 705 can limit the movement trajectory of the film on both sides of the traction roller 306. The bottom rotating motor 701 can be started, and the rotating motor 701 drives the positive and negative lead screws 702 to rotate, so that the two arc-shaped limiting plates 705 mounted on the surface of the positive and negative lead screws 702 move relative to each other, thereby limiting the film of different sizes.

[0033] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0034] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0035] 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 film blowing machine with an upper traction structure, comprising a film blowing machine body (1), characterized in that: One side of the film blowing machine body (1) is provided with a motor box (2), the inside of the motor box (2) is fixedly connected with a height adjusting mechanism (3), the lower surface of the inner wall of the film blowing machine body (1) is provided with a base (4), the surface of the base (4) is fixedly connected with two connecting blocks (5), the surface of one of the connecting blocks (5) is fixedly connected with a motor box (6), the inside of the motor box (6) is fixedly connected with an anti-deviation mechanism (7), The height adjusting mechanism (3) comprises a driving motor (301) fixedly connected to the inside of the motor box (2), the bottom of the driving motor (301) is fixedly connected with a lead screw (302), the surface of the lead screw (302) is threadedly connected with a moving plate (303), one side of the moving plate (303) is fixedly connected with a motor bin (304), the inside of the motor bin (304) is fixedly connected with a servo motor (305), the output end of the servo motor (305) is fixedly connected with a traction roller (306); The anti-deviation mechanism (7) comprises a rotating motor (701) fixedly connected to the inside of the motor box (6), the output end of the rotating motor (701) is fixedly connected with a reversible lead screw (702), the surface of the reversible lead screw (702) is threadedly connected with a threaded block (703), the top of the threaded block (703) is fixedly connected with an electric push rod (704), the top of the electric push rod (704) is fixedly connected with an arc-shaped limiting plate (705).

2. The film blowing machine with upper traction structure according to claim 1, characterized in that: One side of the traction roller (306) is rotatably connected with a rotating shaft (8), one side of the rotating shaft (8) is fixedly connected with a fixed plate (9).

3. The film blowing machine with upper traction structure according to claim 2, characterized in that: The surface of the fixed plate (9) is provided with two limiting holes, the inside of the limiting hole is slidably connected with a limiting rod (10).

4. The film blowing machine with upper traction structure according to claim 1, characterized in that: The top of the film blowing machine body (1) is provided with a ventilation opening, the inside of the ventilation opening is provided with a filter box (11).

5. The film blowing machine with upper traction structure according to claim 4, characterized in that: The inside of the filter box (11) is provided with two activated carbon layers (12), one side of the activated carbon layer (12) is fixedly connected with two rotating interfaces (13).

6. The film blowing machine with upper traction structure according to claim 5, characterized in that: The surface of the rotating interface (13) is rotatably connected with a limiting column (14), the surface of the limiting column (14) is inserted with a positioning block (15).

7. The film blowing machine with upper traction structure according to claim 1, characterized in that: The bottom of the threaded block (703) is fixedly connected with two limiting blocks, the limiting block is slidably connected in the slide rail provided in the surface of the base (4).

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