A film blowing machine for processing garbage bags

By introducing a combined structure of bidirectional screw, screw sleeve, slide groove and support into the blown film machine, the problem of film tube displacement under the action of external wind force was solved, and the stable positioning of the film tube and the improvement of processing accuracy were achieved.

CN224465254UActive Publication Date: 2026-07-07DONGGUAN RONGYE PACKAGING PRODUCTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN RONGYE PACKAGING PRODUCTS CO LTD
Filing Date
2025-06-16
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing blown film machines cannot effectively limit the blowing of the film cylinder, causing the film cylinder to easily shift due to external wind forces.

Method used

By introducing a combination structure of bidirectional screw, screw sleeve, slide groove and support into the blown film machine, and in conjunction with a motor and electric telescopic rod, the limiting and angle adjustment of the film tube can be achieved, ensuring the stability of the film tube.

Benefits of technology

This effectively limits the movement of the film tube, preventing it from shifting under external wind force and improving the stability and precision of film processing.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224465254U_ABST
    Figure CN224465254U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of blown film machines for garbage bag processing, including extruder, the right end of the top of extruder is fixedly connected with sleeve through first support, and the inside of sleeve is fixedly connected with conveying box through third support, the outside of conveying box is fixedly connected with second motor, and the output shaft of second motor is fixedly connected with bidirectional screw rod, the outer surface of bidirectional screw rod is threadedly connected with two screw sleeves, the outside of screw sleeve is fixedly connected with fourth support, and the inner surface of fourth support is movably connected with first guide roller.The utility model will raw material be input into extruder from feeding hopper, and under the cooperation of extruder and rotating die head, raw material is blown into film cylinder, people can control second motor rotation according to needs, second motor will drive bidirectional screw rod to rotate when rotating, and under the cooperation of screw sleeve, sliding slot and fourth support, the distance between two first guide rollers can be adjusted, so that film cylinder can be limited processing.
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Description

Technical Field

[0001] This utility model relates to the field of garbage bag processing technology, specifically a blown film machine for garbage bag processing. Background Technology

[0002] As the name suggests, garbage bags are bags for holding garbage. These small bags bring great convenience to thousands of households and provide important protection for environmental protection. They even help with garbage recycling and sorting. Garbage bags require the use of blown film machines during production. However, existing blown film machines cannot limit the position of the blown film tube, causing the film tube to easily shift due to external wind forces. Therefore, we propose a blown film machine for garbage bag processing. Utility Model Content

[0003] The purpose of this invention is to provide a blown film machine for processing garbage bags, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a blown film machine for garbage bag processing, comprising an extruder, wherein a sleeve is fixedly connected to the right end of the top of the extruder via a first bracket, and a conveying box is fixedly connected to the inner side of the sleeve via a third bracket, a second motor is fixedly connected to the outer side of the conveying box, and a bidirectional screw is fixedly connected to the output shaft of the second motor, wherein two threaded sleeves are threadedly connected to the outer surface of the bidirectional screw, a fourth bracket is fixedly connected to the outer side of the threaded sleeves, and a first guide roller is movably connected to the inner surface of the fourth bracket.

[0005] Preferably, the left end of the top of the extruder is connected to a feed hopper, the right end of the top of the extruder is connected to a rotating die head, the left and right ends of the bottom of the extruder are fixedly connected to second support legs, and the outer surface of the sleeve is fixedly connected to multiple equidistant first support legs, and the bottoms of the first support legs and the second support legs are located on the same horizontal plane.

[0006] Preferably, a slider is fixedly connected to the upper end of the outer surface of the sleeve, a toothed ring is slidably connected to the inner side of the slider, a first motor is fixedly connected to the outer side of the sleeve, and a gear is fixedly connected to the output shaft of the first motor, and the gear meshes with the toothed ring.

[0007] Preferably, a fifth bracket is fixedly connected to both ends of the top of the gear, an electric telescopic rod is fixedly connected to the upper end of the inner side of the fifth bracket, an adjusting rod is movably connected to the inner side of the fifth bracket and the lower end of the electric telescopic rod, a second bracket is movably connected to the inner side of the adjusting rod and the telescopic end of the electric telescopic rod, and a second guide roller is movably connected to the inner side of the second bracket.

[0008] Preferably, there are multiple third supports, which are spirally distributed among each other, and a groove is provided at the connection between the conveyor box and the screw sleeve.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model feeds raw materials into the extruder from the feed hopper, and blows the raw materials into a thin film tube with the cooperation of the extruder and the rotating die head. The second motor can be controlled to rotate as needed. When the second motor rotates, it will drive the bidirectional screw to rotate. With the cooperation of the screw sleeve, the slide groove and the fourth bracket, the distance between the two first guide rollers can be adjusted, thereby limiting the position of the thin film tube.

[0011] 2. This utility model controls the extension and retraction of the electric telescopic rod. With the cooperation of the adjusting rod, the deflection angle of the second guide roller can be adjusted. The rotation of the first motor can drive the gear to rotate, and with the cooperation of the slider, it can drive the gear ring to rotate, thereby adjusting the position of the second bracket. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective.

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0014] Figure 3 This is a three-dimensional structural diagram of the present invention from a third-view perspective;

[0015] Figure 4 This is a cross-sectional view of the conveyor box of this utility model;

[0016] Figure 5 This is a schematic diagram of the slider structure of this utility model.

[0017] In the diagram: Extruder 1, Feed hopper 2, First support 3, Second support 4, Gear ring 5, First support leg 6, Sleeve 7, Second guide roller 8, First motor 9, Rotary die head 10, Third support 11, Conveying box 12, Gear 13, Adjusting rod 14, Electric telescopic rod 15, Screw sleeve 16, Bidirectional screw 17, First guide roller 18, Slide groove 19, Fourth support 20, Second motor 21, Slider 22, Fifth support 23, Second support leg 24. Detailed Implementation

[0018] 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.

[0019] The components of this application, including the extruder 1, feed hopper 2, first support 3, second support 4, gear ring 5, first support leg 6, sleeve 7, second guide roller 8, first motor 9, rotating die head 10, third support 11, conveyor box 12, gear 13, adjusting rod 14, electric telescopic rod 15, screw sleeve 16, bidirectional screw 17, first guide roller 18, slide groove 19, fourth support 20, second motor 21, slider 22, fifth support 23, and second support leg 24, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Example

[0020] Please see Figures 1-4 The following technical solution is provided, specifically disclosing: An extruder 1 is included. A sleeve 7 is fixedly connected to the right end of the top of the extruder 1 via a first bracket 3. A conveyor box 12 is fixedly connected to the inner side of the sleeve 7 via a third bracket 11. A second motor 21 is fixedly connected to the outer side of the conveyor box 12. A bidirectional screw 17 is fixedly connected to the output shaft of the second motor 21. Two threaded sleeves 16 are threadedly connected to the outer surface of the bidirectional screw 17. A fourth bracket 20 is fixedly connected to the outer side of the threaded sleeves 16. A first guide roller 18 is movably connected to the inner surface of the fourth bracket 20. A feed hopper 2 is connected to the left end of the top of the extruder 1. A rotating die head 10 is connected to the right end of the top of the extruder 1. Second support legs 24 are fixedly connected to both the left and right ends of the bottom of the extruder 1. Multiple equidistant first support legs 6 are fixedly connected to the outer surface of the cylinder 7, and the bottoms of the first support legs 6 and the second support legs 24 are located on the same horizontal plane. There are multiple third supports 11, which are spirally distributed among each other. A groove 19 is provided at the connection between the conveying box 12 and the screw sleeve 16. The raw material is fed into the extruder 1 from the feed hopper 2, and the raw material is blown into a film cylinder with the cooperation of the extruder 1 and the rotating die head 10. The second motor 21 can be controlled to rotate as needed. When the second motor 21 rotates, it will drive the bidirectional screw 17 to rotate. With the cooperation of the screw sleeve 16, the groove 19 and the fourth support 20, the distance between the two first guide rollers 18 can be adjusted, thereby limiting the film cylinder. Example

[0021] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5The following technical solution is provided, specifically disclosing that: a slider 22 is fixedly connected to the upper end of the outer surface of the sleeve 7, a toothed ring 5 is slidably connected to the inner side of the slider 22, a first motor 9 is fixedly connected to the outer side of the sleeve 7, a gear 13 is fixedly connected to the output shaft of the first motor 9, and the gear 13 meshes with the toothed ring 5, a fifth bracket 23 is fixedly connected to both ends of the top of the gear 13, an electric telescopic rod 15 is fixedly connected to the upper end of the inner side of the fifth bracket 23, an adjusting rod 14 is movably connected to the inner side of the fifth bracket 23 and the lower end of the electric telescopic rod 15, a second bracket 4 is movably connected to the inner side of the adjusting rod 14 and the telescopic end of the electric telescopic rod 15, and a second guide roller 8 is movably connected to the inner side of the second bracket 4. By controlling the telescopic extension and retraction of the electric telescopic rod 15, the deflection angle of the second guide roller 8 can be adjusted with the cooperation of the adjusting rod 14. By controlling the rotation of the first motor 9, the gear 13 can be rotated, and with the cooperation of the slider 22, the toothed ring 5 can be rotated, thereby adjusting the position of the second bracket 4.

[0022] The working principle of this application is as follows: First, all electrical equipment is connected to the power supply and controller. The raw material is fed into the extruder 1 from the feed hopper 2. With the cooperation of the extruder 1 and the rotating die head 10, the raw material is blown into a film tube. The second motor 21 can be controlled to rotate as needed. When the second motor 21 rotates, it will drive the bidirectional screw 17 to rotate. With the cooperation of the screw sleeve 16, the slide groove 19 and the fourth bracket 20, the distance between the two first guide rollers 18 can be adjusted, thereby limiting the film tube. The electric telescopic rod 15 is controlled to extend and retract. With the cooperation of the adjusting rod 14, the deflection angle of the second guide roller 8 can be adjusted. The first motor 9 is controlled to rotate, which can drive the gear 13 to rotate. With the cooperation of the slider 22, the gear ring 5 can rotate, thereby adjusting the position of the second bracket 4.

[0023] 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 blown film machine for processing garbage bags, comprising an extruder (1), characterized in that: The right end of the top of the extruder (1) is fixedly connected to a sleeve (7) via a first bracket (3), and the inner side of the sleeve (7) is fixedly connected to a conveyor box (12) via a third bracket (11). The outer side of the conveyor box (12) is fixedly connected to a second motor (21), and the output shaft of the second motor (21) is fixedly connected to a bidirectional screw (17). The outer surface of the bidirectional screw (17) is threaded with two screw sleeves (16), the outer side of the screw sleeves (16) is fixedly connected to a fourth bracket (20), and the inner surface of the fourth bracket (20) is movably connected to a first guide roller (18).

2. The blown film machine for garbage bag processing according to claim 1, characterized in that: The top left end of the extruder (1) is connected to the feed hopper (2), the top right end of the extruder (1) is connected to the rotating die head (10), the bottom left and right ends of the extruder (1) are fixedly connected to the second support leg (24), the outer surface of the sleeve (7) is fixedly connected to multiple equidistant first support legs (6), and the bottoms of the first support leg (6) and the second support leg (24) are located on the same horizontal plane.

3. The blown film machine for garbage bag processing according to claim 1, characterized in that: A slider (22) is fixedly connected to the upper end of the outer surface of the sleeve (7). A toothed ring (5) is slidably connected to the inner side of the slider (22). A first motor (9) is fixedly connected to the outer side of the sleeve (7). A gear (13) is fixedly connected to the output shaft of the first motor (9), and the gear (13) meshes with the toothed ring (5).

4. The blown film machine for garbage bag processing according to claim 3, characterized in that: The top two ends of the gear (13) are fixedly connected to the fifth bracket (23). The upper end of the inner side of the fifth bracket (23) is fixedly connected to the electric telescopic rod (15). The inner side of the fifth bracket (23) and the lower end of the electric telescopic rod (15) are movably connected to the adjusting rod (14). The inner side of the adjusting rod (14) and the telescopic end of the electric telescopic rod (15) are movably connected to the second bracket (4). The inner side of the second bracket (4) is movably connected to the second guide roller (8).

5. A blown film machine for processing garbage bags according to claim 1, characterized in that: The number of the third support (11) is multiple, and the multiple third supports (11) are distributed in a spiral shape. A groove (19) is provided at the connection between the conveying box (12) and the screw sleeve (16).