Film blowing machine for waterproof PE film

By introducing adjustment and linkage components into the blown film machine for waterproof PE film, the problem of insufficient film tension control was solved, achieving uniform stress on the film and stable production, thus improving film quality and adaptability.

CN223918669UActive Publication Date: 2026-02-17FUJIAN ZHONGFEI FILM TECH CO LTD
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Patent Information

Application Number
CN202520388221.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-02-17
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Existing blown film machines for waterproof PE films have shortcomings in film tension control, resulting in uneven stress during film stretching, leading to uneven surface and thickness, which makes it difficult to meet the quality requirements of high-end application scenarios.

Method used

The adjustment components include a rotating plate driven by a first motor and a limiting roller. Through the cooperation of the rotating rod and the connecting plate, the film tension can be precisely adjusted. The winding diameter can be adjusted through the linkage component and the spreading component to ensure the stability and versatility of the film.

Benefits of technology

This achieves uniform stress distribution on the film during the stretching process, improves the surface smoothness and thickness uniformity of the film, enhances the stability and adaptability of the waterproof PE film, and meets the needs of high-end applications.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a PE (polyethylene) film blowing technology, and discloses a waterproof PE film blowing machine which comprises a support, an extruder is fixedly connected to the top of the support, a cooling assembly is arranged on the inner wall of the extruder, an inclined panel is fixedly connected to the inner wall of the support, a limiting roller is arranged on the side wall of the support, a blowing assembly is arranged on the inner wall of the support, and the cooling assembly is arranged on the inner wall of the support. A base is fixedly connected to the bottom of the limiting roller, a driving assembly is arranged on the side wall of the base, and an adjusting assembly is arranged on the top of the base; the adjusting assembly comprises a first motor, the bottom of the first motor is fixedly connected to the top of the base, and the output end of the first motor is fixedly connected with a rotating plate. According to the film blowing machine for the waterproof PE film, the rotating plate is driven by the first motor to rotate, the rotating rod is driven to rotate, the connecting plate slides, and the connecting plate limiting roller is driven to move, so that the problems that the tension cannot be adjusted, so that a film is stressed unevenly in the stretching process, the surface is uneven easily and the like are solved, and the stability of the film blowing machine for the waterproof PE film is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to PE film blowing technology field especially relates to a waterproof PE film's film blowing machine. BACKGROUND

[0002] Waterproof PE film is a kind of film made of polyethylene material, has excellent waterproof performance. PE is a kind of common thermoplastic plastic, has light weight, flexible, chemical corrosion resistance, low temperature resistance and other characteristics. Waterproof PE film is widely used in various fields, mainly used to prevent moisture penetration or protect objects from the damage of humid environment, waterproof PE film uses film blowing machine because film blowing machine is the core equipment of producing PE film, can efficiently, stably process polyethylene (PE) raw material into the film meeting the requirements. Film blowing process has the characteristics such as low cost, high production efficiency, excellent film performance, is very suitable for large-scale production of waterproof PE film.

[0003] In the prior art, the film blowing machine of waterproof PE film usually includes the following main structures: support is used to support the whole equipment, extruder is used to heat and extrude polyethylene raw material into molten state, die head forms annular film from molten raw material, blowing assembly inflates film into bubble shape by compressed air, cooling air ring is used to quickly cool film to shape, traction roller stretches and guides film to winding device, winding machine winds finished film into roll. In addition, it also includes thickness detection device, automatic control system and multilayer co-extrusion die and other auxiliary structures to realize efficient, stable and high-precision production.

[0004] However, the film blowing machine in the prior art has obvious deficiencies in film tension control. Due to the lack of precise tension adjustment mechanism, film is prone to uneven force in the stretching process, resulting in uneven surface, uneven thickness and other problems. This not only affects the appearance quality of the film, but also reduces its waterproof performance and mechanical strength, which is difficult to meet the high requirements of high-end application scenarios for film quality, therefore a film blowing machine for waterproof PE film is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a film blowing machine for waterproof PE film, aims at improving the problem that the film is unevenly stressed in the stretching process due to the inability to adjust tension in the prior art, and prone to uneven surface.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of blown film machine of waterproof PE film, including support, the support top is fixedly connected with extruder, the inner wall of extruder is provided with cooling assembly, the inner wall of support is fixedly connected with inclined plane board, the lateral wall of support is provided with limiting roller, the inner wall of support is provided with blowing assembly, the limiting roller bottom is fixedly connected with base, the lateral wall of base is provided with driving assembly, the top of base is provided with adjusting assembly;

[0008] The adjusting assembly includes a first motor, the first motor is fixedly connected to the top of the base, the output end of the first motor is fixedly connected with a rotating plate, the lateral wall of the rotating plate is rotatably connected with a connecting block, the bottom of the connecting block is fixedly connected to the top of the base, the lateral wall of the rotating plate is rotatably connected with a rotating rod, the lateral wall of the rotating rod is rotatably connected with a connecting plate, and the inside of the connecting plate is provided with a limiting assembly.

[0009] As a further description of the above technical solution:

[0010] The limiting restriction includes a first fixed column, the outer wall of the first fixed column is slidably connected inside the connecting plate, and the bottom of the first fixed column is fixedly connected to the top of the base.

[0011] As a further description of the above technical solution:

[0012] The driving assembly includes a first hollow block, the lateral wall of the first hollow block is provided on the lateral wall of the base, the inner wall of the first hollow block is fixedly connected with a first support plate, the top of the first support plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a transmission chain, and the inside of the transmission chain is provided with a linkage assembly.

[0013] As a further description of the above technical solution:

[0014] The linkage assembly includes a second fixed column, the outer wall of the second fixed column is fixedly connected inside the transmission chain, the outer wall of the second fixed column is provided with a limiting block, the bottom of the limiting block is fixedly connected with another first support plate, and one end of the second fixed column is provided with a limiting assembly.

[0015] As a further description of the above technical solution:

[0016] The limiting assembly includes a hollow groove column, the lateral wall of the hollow groove column is fixedly connected with the lateral wall of the first hollow block, the inside of the hollow groove column is slidably connected with a sliding block, the lateral wall of the hollow groove column is provided with a spring, one end of the spring is fixedly connected to the lateral wall of the hollow groove column, the other end of the spring is fixedly connected with a sleeve ring, and the lateral wall of the sliding block is provided with a strutting assembly.

[0017] As a further description of the above technical solution:

[0018] The expansion assembly includes an anti-skid plate, the anti-skid plate side wall is fixedly connected with the sliding block side wall, the sliding block side wall is fixedly connected with the anti-skid plate, the anti-skid plate side wall is fixedly connected with the second support plate, the second support plate side wall is rotationally connected with the connecting rod, the connecting rod side wall is fixedly connected with the third support plate, the third support plate side wall is fixedly connected with the sleeve ring, the sleeve ring inner wall is slidably connected with the second fixed column outer wall, one end of the second fixed column is fixedly connected with the threaded rod, and the threaded rod outer wall is threadedly connected with the handle, and the handle side wall is arranged at one end of the sleeve ring.

[0019] As a further description of the above technical solutions:

[0020] The cooling assembly includes a circulating water pump, the circulating water pump bottom is fixedly connected with the support inner wall, the circulating water pump output end is fixedly connected with a third connecting pipe, one end of the third connecting pipe is fixedly connected with a water tank, the circulating water pump input end is fixedly connected with another third connecting pipe, one end of the third connecting pipe is fixedly connected with a water bucket, and the water bucket bottom is fixedly connected with the support inner wall.

[0021] As a further description of the above technical solutions:

[0022] The blowing assembly includes a blower, the blower bottom is fixedly connected with the support top, the blower output end is fixedly connected with a first connecting pipe, one end of the first connecting pipe is fixedly connected with a wind ring, the wind ring inside is fixedly connected with a second connecting pipe, and the second connecting pipe outer wall is fixedly connected with one end of the extruder.

[0023] The utility model has the following beneficial effects:

[0024] 1、the utility model discloses, through the first motor drive rotary plate rotation drives the rotation of the rotating rod, and the connecting plate is driven to slide, and the limiting roller of connecting plate side wall is driven to move, reached the effect of adjusting tension, solved the problem that the uneven stress of film in the process of stretching caused by the inability to adjust tension, easy to appear surface uneven etc., improved the stability of the film blowing machine of waterproof PE membrane.

[0025] 2、the utility model discloses, through the rotation of handle drives sleeve ring to move, and the sleeve ring moves and rotates the connecting rod, and the connecting rod drives the anti-skid plate to move, immediately drives the sliding block of anti-skid plate to slide in the empty groove column, reached the effect of adjusting winding diameter, solved the problem that the production capacity of equipment was limited by the inability to adjust winding diameter, difficult to adapt to the needs of different customers, improved the diversity of the film blowing machine of waterproof PE membrane. ACCURACY OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of the film blowing machine of waterproof PE membrane is provided for the utility model;

[0027] Figure 2 A support side wall structure schematic view of the blown film machine of the waterproof PE film is provided in the utility model.

[0028] Figure 3 A support top structure schematic view of the blown film machine of the waterproof PE film is provided in the utility model.

[0029] Figure 4 A base top structure schematic view of the blown film machine of the waterproof PE film is provided in the utility model.

[0030] Figure 5 A first hollow block section structure schematic view of the blown film machine of the waterproof PE film is provided in the utility model.

[0031] Figure 6 A hollow groove column side wall structure schematic view of the blown film machine of the waterproof PE film is provided in the utility model.

[0032] Figure 7 A Figure 2 Enlarged view of A in the middle.

[0033] Legend:

[0034] 1, support, 2, extruder, 3, water bucket, 4, water tank, 5, inclined plane plate, 6, limiting roller, 7, first hollow block, 8, circulating water pump, 9, base, 10, connecting block, 11, first motor, 12, rotating plate, 13, rotating rod, 14, first fixed column, 15, connecting plate, 16, first support plate, 17, second motor, 18, transmission chain, 19, limiting block, 20, second fixed column, 21, antiskid plate, 22, hollow groove column, 23, connecting rod, 24, second support plate, 25, handle, 26, threaded rod, 27, sleeve ring, 28, third support plate, 29, sliding block, 30, air ring, 31, first connecting pipe, 32, air blower, 33, second connecting pipe, 34, third connecting pipe, 35, spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and 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 the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] Refer to Figure 1 And Figure 4The utility model provides an embodiment: a kind of blown film machine of waterproof PE film, including support 1, support 1 uses high-strength steel material, function is the structure of supporting entire blown film machine, ensure the stability and durability of equipment, support 1 top is fixedly connected with extruder 2, the part of extruder 2 inside contact PE film usually uses wear-resistant alloy steel or chrome-plated steel, function is to heat and extrude PE material into shape, and internal heating temperature is generally between 130-200 degrees, cooling assembly is provided in the inner wall of extruder 2, support 1 inner wall is fixedly connected with inclined plane 5, support 1 side wall is provided with limiting roller 6, limiting roller 6 surface usually uses rubber or polyurethane coating, function is to limit the position of PE film, ensure that it keeps stable in blown film process, support 1 inner wall is provided with blowing assembly, limiting roller 6 bottom is fixedly connected with base 9, base 9 side wall is provided with drive assembly, base 9 top is provided with adjusting assembly;

[0037] Adjusting assembly includes first motor 11, first motor 11 bottom is fixedly connected at the top of base 9, first motor 11 output end is fixedly connected with rotating plate 12, rotating plate 12 usually uses aluminum alloy, adjust the position of limiting roller 6, ensure that the thickness and width of PE film meet the requirements, rotating plate 12 side wall is rotatably connected with connecting block 10, connecting block 10 bottom is fixedly connected at the top of base 9, rotating plate 12 side wall is rotatably connected with rotating rod 13, rotating rod 13 side wall is rotatably connected with connecting plate 15, connecting plate 15 is provided with limiting assembly inside, limiting limit includes first fixed column 14, first fixed column 14 outer wall is slidably connected in connecting plate 15 inside, first fixed column 14 bottom is fixedly connected at the top of base 9.

[0038] Refer to Figure 1 、 Figure 5 And Figure 6, the driving assembly comprises a first hollow block 7, the side wall of the first hollow block 7 is arranged on the side wall of the base 9, the inner wall of the first hollow block 7 is fixedly connected with a first supporting plate 16, the top of the first supporting plate 16 is fixedly connected with a second motor 17, the output end of the second motor 17 is fixedly connected with a transmission chain 18, the transmission chain 18 is internally provided with a linkage assembly, the linkage assembly comprises a second fixed column 20, the outer wall of the second fixed column 20 is fixedly connected in the transmission chain 18, the outer wall of the second fixed column 20 is provided with a limiting block 19, the bottom of the limiting block 19 is fixedly connected with another first supporting plate 16, one end of the second fixed column 20 is provided with a limiting assembly, the limiting assembly comprises a hollow slot column 22, the side wall of the hollow slot column 22 is fixedly connected on the side wall of the first hollow block 7, the inner wall of the hollow slot column 22 is slidably connected with a sliding block 29, the side wall of the hollow slot column 22 is provided with a spring 35, one end of the spring 35 is fixedly connected on the side wall of the hollow slot column 22, the other end of the spring 35 is fixedly connected with a sleeve ring 27, the side wall of the sliding block 29 is provided with a spreading assembly, the spreading assembly comprises an anti-skid plate 21, the material of the anti-skid plate 21 is aluminum alloy, and the outer wall of the anti-skid plate 21 is provided with an anti-skid strip, so as to reduce the falling of the winding drum, the side wall of the anti-skid plate 21 is fixedly connected on the side wall of the sliding block 29, the side wall of the sliding block 29 is fixedly connected with the anti-skid plate 21, the side wall of the anti-skid plate 21 is fixedly connected with a second supporting plate 24, the side wall of the second supporting plate 24 is rotatably connected with a connecting rod 23, the side wall of the connecting rod 23 is fixedly connected with a third supporting plate 28, the side wall of the third supporting plate 28 is fixedly connected with the sleeve ring 27, the inner wall of the sleeve ring 27 is slidably connected on the outer wall of the second fixed column 20, one end of the second fixed column 20 is fixedly connected with a threaded rod 26, the outer wall of the threaded rod 26 is threadedly connected with a handle 25, and the side wall of the handle 25 is arranged at one end of the sleeve ring 27;

[0039] Referring to Figures 1-3 and Figure 7 , the cooling assembly comprises a circulating water pump 8, the bottom of the circulating water pump 8 is fixedly connected on the inner wall of the support 1, the output end of the circulating water pump 8 is fixedly connected with a third connecting pipe 34, one end of the third connecting pipe 34 is fixedly connected with the water tank 4, the circulating water pump 8 and the water tank 4 are usually made of stainless steel or corrosion-resistant plastic, and the function is to reduce the temperature in the water tank 4 through water circulation, so as to prevent the PE film from overheating, the input end of the circulating water pump 8 is fixedly connected with another third connecting pipe 34, one end of the third connecting pipe 34 is fixedly connected with the water bucket 3, and the bottom of the water bucket 3 is fixedly connected on the inner wall of the support 1, the blowing assembly comprises a blower 32, the bottom of the blower 32 is fixedly connected on the top of the support 1, the output end of the blower 32 is fixedly connected with a first connecting pipe 31, one end of the first connecting pipe 31 is fixedly connected with a wind ring 30, the blower 32 and the wind ring 30 are usually made of aluminum alloy or stainless steel, and the function is to blow air into the wind ring 30 through the blower 32 to form bubbles, so as to help the PE film to be formed, the inner wall of the wind ring 30 is fixedly connected with a second connecting pipe 33, and the outer wall of the second connecting pipe 33 is fixedly connected on one end of the extruder 2;

[0040] Working principle: when using the waterproof PE film blowing machine, first of all, the PE material is conveyed into the inside of the extruder 2 through the feeding device, then the PE material is extruded through the extruder 2, the material is transmitted to the inside of the air ring 30 through the second connecting pipe 33, and the PE material is processed into shape through the air ring 30, then the air pump 32 output end draws gas, and the gas is discharged into the inside of the air ring 30 through the first connecting pipe 31, which achieves the effect of blow molding, then the circulating water pump 8 input end draws the liquid in the water bucket 3 through the third connecting pipe 34, and then the circulating water pump 8 output end discharges the liquid into the inside of the water tank 4 through the third connecting pipe 34 again, which achieves the effect of cooling the PE film;

[0041] Next, the PE film is changed from a cylindrical shape to a flat shape through the inclined panel 5, and then the PE film is placed in the outer wall of the limiting roller 6 through the stock limiting roller 6, then the rotating plate 12 is driven to rotate through the first motor 11 output end, and the side wall of the rotating plate 12 will move along the center point of the connecting block 10 hole, and then the rotating rod 13 is driven to rotate in the process of rotating the rotating plate 12, and the side wall of the rotating rod 13 will move in a circular motion along the side wall of the rotating plate 12, then the connecting plate 15 on the side wall of the rotating rod 13 is driven to rotate, and the connecting plate 15 moves in a straight line on the outer wall of the first fixed column 14 in the process of being stressed, which can change the circular motion of the rotating rod 13 into straight line motion, then the limiting roller 6 connected with the side wall of the connecting plate 15 can be moved, which achieves the effect of adjusting the tension;

[0042] Then the transmission chain 18 is driven to rotate by the second motor 17, and the second fixed column 20 is driven to rotate after the transmission chain 18 rotates, and the second fixed column 20 rotates in the limiting block 19, and the second fixed column 20 rotates to drive the one-end hollow column 22 to rotate, and the hollow column 22 rotates in the side wall of the first hollow block 7, and the second fixed column 20 rotates to drive the outer wall of the sleeve ring 27 to rotate, which achieves the effect of PE winding, and then the handle 25 is rotated, the handle 25 is rotated on the outer wall of the threaded rod 26, and the handle 25 is rotated to drive the sleeve ring 27 on the side wall to slide on the outer wall of the second fixed column 20, and then the third supporting plate 28 on the outer wall is driven to move with the sleeve ring 27 when the sleeve ring 27 slides, and then the third supporting plate 28 moves to drive the connecting rod 23 on the inner wall to rotate, and then the connecting rod 23 rotates along the center of the nut to move in a circle, and the second supporting plate 24 is driven to move while the connecting rod 23 rotates, and then the second supporting plate 24 moves to drive the anti-skid plate 21 and the sliding block 29 to slide in the groove of the hollow column 22, and the second supporting plate 24 is limited, which achieves the effect of adjusting the winding diameter.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A blown film machine for waterproof PE film comprising a support (1), characterized in that: The support (1) top fixedly connected with extruder (2), the inner wall of the extruder (2) is provided with cooling assembly, the inner wall of the support (1) is fixedly connected with inclined plane board (5), the side wall of the support (1) is provided with limiting roller (6), the inner wall of the support (1) is provided with blowing assembly, the bottom of the limiting roller (6) is fixedly connected with base (9), the side wall of the base (9) is provided with drive assembly, the top of the base (9) is provided with adjusting assembly; The adjusting assembly includes first motor (11), the first motor (11) bottom fixedly connected at the top of base (9), the first motor (11) output is fixedly connected with rotating plate (12), the side wall of the rotating plate (12) is rotatably connected with connecting block (10), the connecting block (10) bottom is fixedly connected at the top of base (9), the side wall of the rotating plate (12) is rotatably connected with rotating rod (13), the side wall of the rotating rod (13) is rotatably connected with connecting plate (15), the inside of the connecting plate (15) is provided with limiting assembly.

2. A blown film machine for waterproof PE film according to claim 1, characterized in that: The limiting restriction includes first fixed column (14), the first fixed column (14) outer wall is slidably connected in the inside of connecting plate (15), the first fixed column (14) bottom is fixedly connected at the top of base (9).

3. A blown film machine for producing a waterproof PE film according to claim 2, characterized in that: The drive assembly includes first hollow block (7), the first hollow block (7) side wall is provided in the side wall of base (9), the first hollow block (7) inner wall is fixedly connected with first support plate (16), the first support plate (16) top is fixedly connected with second motor (17), the second motor (17) output is fixedly connected with transmission chain (18), the inside of the transmission chain (18) is provided with linkage assembly.

4. A blown film machine for producing a waterproof PE film according to claim 3, characterized in that: The linkage assembly includes second fixed column (20), the second fixed column (20) outer wall is fixedly connected in the inside of transmission chain (18), the second fixed column (20) outer wall is provided with limiting block (19), the limiting block (19) bottom is fixedly connected with another first support plate (16), one end of the second fixed column (20) is provided with limiting assembly.

5. A blown film machine for producing a waterproof PE film according to claim 4, characterized in that: The limiting assembly includes hollow slot column (22), the side wall of the hollow slot column (22) is fixedly connected with the side wall of the first hollow block (7), the inside of the hollow slot column (22) is slidably connected with sliding block (29), the side wall of the hollow slot column (22) is provided with spring (35), one end of the spring (35) is fixedly connected with the side wall of the hollow slot column (22), the other end of the spring (35) is fixedly connected with sleeve ring (27), the side wall of the sliding block (29) is provided with strutting assembly.

6. A blown film machine for producing a waterproof PE film according to claim 5, characterized in that: The distraction assembly includes a non-slip plate (21), the non-slip plate (21) side wall fixedly connected to the slider (29) side wall, the slider (29) side wall fixedly connected with the non-slip plate (21), the non-slip plate (21) side wall fixedly connected with the second support plate (24), the second support plate (24) side wall rotationally connected with the connecting rod (23), the connecting rod (23) side wall fixedly connected with the third support plate (28), the third support plate (28) side wall fixedly connected with the sleeve ring (27), the sleeve ring (27) inner wall is connected with the second fixed column (20) outer wall, the second fixed column (20) one end fixedly connected with the threaded rod (26), the threaded rod (26) outer wall threadedly connected with the handle (25), the handle (25) side wall is arranged in the sleeve ring (27) one end.

7. A blown film machine for producing a waterproof PE film as claimed in claim 1, characterized in that: The cooling assembly includes a circulating water pump (8), the circulating water pump (8) bottom fixedly connected to the inner wall of the support (1), the circulating water pump (8) output fixedly connected with the third connecting pipe (34), the third connecting pipe (34) one end fixedly connected with the water tank (4), the circulating water pump (8) input fixedly connected with another third connecting pipe (34), the third connecting pipe (34) one end fixedly connected with the water bucket (3), the water bucket (3) bottom fixedly connected to the inner wall of the support (1).

8. A blown film machine for producing a waterproof PE film as claimed in claim 1, characterized in that: The blowing assembly includes a blower (32), the blower (32) bottom fixedly connected to the top of the support (1), the blower (32) output fixedly connected with the first connecting pipe (31), the first connecting pipe (31) one end fixedly connected with the air ring (30), the air ring (30) inside fixedly connected with the second connecting pipe (33), the second connecting pipe (33) outer wall fixedly connected to one end of the extruder (2).