Film blowing device for plastic film production and processing

By setting up an installation and connection mechanism in the blown film device, and using electric push rods and motor-driven conveying rollers and winding rollers, the problem of uneven film thickness was solved, achieving uniformity in film thickness and improving production efficiency.

CN223849964UActive Publication Date: 2026-01-30CANGZHOU JUNTENG PLASTICS CO LTD
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Patent Information

Application Number
CN202520249162.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-01-30
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing blown film equipment lacks an effective film thickness adjustment mechanism, resulting in uneven film thickness and affecting product quality and consistency.

Method used

By setting up installation and connection mechanisms, precise control of film thickness is achieved, including the use of electric push rods and motor-driven conveying rollers and winding rollers, in conjunction with cooling fans to cool and wind up the film, ensuring uniform film thickness.

Benefits of technology

This achieves uniform film thickness, improves product quality and production efficiency, and simplifies processing procedures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a film blowing device for plastic film production and processing, and relates to the technical field of film blowing devices. The device comprises a mounting shell and a melting machine, a mounting mechanism and a connecting mechanism are arranged on the mounting shell, then a first electric push rod is started, the first electric push rod drives a sliding shell and two pull plates to slide downwards on the outer wall of a fixing rod, and then the two pull plates drive two connecting plates to rotate downwards on the inner wall of the fixing shell; the gap between the two connecting plates is adjusted by positively and negatively starting the first electric push rod, then the proper gap is adjusted so that the thickness of the blown film can meet the required specification, then the blown film makes contact with the outer wall of the second conveying roller and then makes contact with the outer wall of the winding roller to be wound, and then winding is conducted through the connecting mechanism. Through the operation, the thickness of the film can be quickly and effectively controlled, the processing requirement is met, and therefore it is ensured that the thickness of the film is uniform and consistent, and the quality and consistency of products are improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of blown film equipment, and in particular relates to a blown film equipment for plastic film production and processing. Background Technology

[0002] In the prior art, a search revealed a Chinese patent that discloses "a blown film device for plastic film production and processing," with publication number "CN117601412A." This patent mainly involves using a cooling device to pump cooling water into the interior of multiple guide tubes during film extrusion, guiding the water into the interior of a cooling cylinder. The cooling cylinder absorbs the heat from the blown film tubes, and the water that has absorbed the heat is then pumped back into the cooling device for cooling, thus enabling secondary utilization.

[0003] However, the above-mentioned device lacks an effective film thickness adjustment mechanism, making it inconvenient to control and adjust the film thickness according to actual production needs. This makes it easy for the film thickness to be uneven during processing, affecting product quality and consistency. Utility Model Content

[0004] The purpose of this utility model is to provide a blown film device for plastic film production and processing. By setting up an installation mechanism, it solves the problem that the above-mentioned device lacks an effective film thickness adjustment mechanism, making it inconvenient to control and adjust the film thickness according to actual production needs. This makes it easy for the film thickness to be uneven during processing, affecting product quality and consistency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a blown film production and processing device for plastic film, comprising a mounting shell and a melting machine. The mounting shell is provided with a mounting mechanism and a connecting mechanism. The mounting mechanism includes two first conveying rollers rotatably connected to the top of the inner wall of the mounting shell. The outer wall of the mounting shell is fixedly connected to the inner wall of the mounting shell. A blown film machine is connected and fixedly connected to the right side of the melting machine. The bottom of the blown film machine is in contact with the bottom of the inner wall of the mounting shell. A cooling fan is fixedly connected to the bottom of the inner wall of the mounting shell. A connecting pipe is fixedly connected to the output end of the cooling fan. A perforated shell is fixedly connected to the top of the blown film machine. The other end of the connecting pipe is connected and fixedly connected to the outer wall of the perforated shell. A fixed shell is fixedly connected to the rear side of the inner wall of the mounting shell. A first electric push rod is fixedly connected to the inner wall of the fixed shell. Two connecting plates are rotatably connected to the inner wall of the fixed shell. The two connecting plates are symmetrically arranged about the fixed shell as the central axis. A fixed rod is fixedly connected to the inner wall of the fixed shell. A sliding shell is slidably connected to the outer wall of the fixed rod.

[0007] Furthermore, the bottom of the sliding shell is fixedly connected to the output end of the first electric actuator, and two pull plates are hinged to the front side of the sliding shell. The two pull plates are symmetrically arranged about the fixed shell as the central axis, and the front side of each of the two pull plates is hinged to the rear side of the two connecting plates.

[0008] Furthermore, the connecting mechanism includes a second conveying roller rotatably connected to the inner wall of the mounting housing, and a bottom shell is fixedly connected to the bottom of the inner wall of the mounting housing.

[0009] Furthermore, the inner wall of the bottom shell is fixedly connected to two connecting rods, which are symmetrically arranged about the bottom shell as the central axis, and the outer walls of the two connecting rods are slidably connected to a first connecting shell.

[0010] Furthermore, a second connecting shell is fixedly connected to the bottom of the inner wall of the bottom shell, a motor is fixedly connected to the inner wall of the first connecting shell, and two rotating shafts are provided on the inner wall of the bottom shell.

[0011] Furthermore, the output end of the motor is fixedly connected to the front end of the front rotating shaft via a coupling, and the rear end of the rotating shaft is rotatably connected to the inner wall of the second connecting shell.

[0012] Furthermore, a second electric actuator is fixedly connected to the inner wall of the bottom shell, and the output end of the second electric actuator is fixedly connected to the rear side of the first connecting shell. Two support shells are fixedly connected to the bottom of the inner wall of the bottom shell, and the two support shells are symmetrically arranged about the central axis of the bottom shell.

[0013] Furthermore, the inner walls of the two support shells are rotatably connected to rollers, and the rear end of the front rotating shaft and the front end of the rear rotating shaft are both fixedly connected to cross concave shells. The front end and the rear end of the rollers are both fixedly connected to cross convex shells, and the outer walls of the two cross convex shells are slidably connected to the inner walls of the two cross concave shells.

[0014] This utility model has the following beneficial effects:

[0015] 1. By setting the installation mechanism, first put the material into the inside of the melt machine for hot melting, after the completion of the film blowing machine, then start the cooling fan, the cooling fan conveying wind through the connecting pipe into the shell inside and spray out, the film blowing cooling, then the film blowing through the fixed shell and two connecting plate and two first conveying roller outer wall contact, then start the first electric push rod, the first electric push rod sliding shell with two pull plate in the outer wall of the fixed rod sliding down, then two pull plate driven two connecting plate in the inner wall of the fixed shell rotating down, through the positive and negative start the first electric push rod so that the two connecting plate gap adjustment, then adjust the appropriate gap to make the film thickness meet the needs of the specifications, then the film with the second conveying roller outer wall contact, then with the winding roller outer wall contact winding, then through the connecting mechanism for winding, through the above operation can quickly and effectively control the thickness of the film, meet the processing needs, so as to ensure the uniformity of the film thickness, thereby improving the quality and consistency of the product.

[0016] 2. By setting the connecting mechanism, first through the installation mechanism for processing film blowing, then the film and winding roller outer wall winding, then start the motor, the motor driven front side rotating shaft and front side cross concave shell and front side cross convex shell and winding roller and film in the inside of two support shell rotating, then winding roller driven rear side cross convex shell and cross concave shell and rear side rotating shaft in the inner wall of the second connecting shell rotating, which makes the winding roller rotating winding film, after the completion, stop the motor, start the second electric push rod, the second electric push rod driven first connecting shell in the outer wall of two connecting rod sliding forward, then the first connecting shell driven motor and front side rotating shaft and cross concave shell and front side cross convex shell contact, then drag the winding roller in the inner wall of two support shell sliding forward, at this time the winding roller driven rear side cross convex shell and rear side cross concave shell contact, then the winding roller and winding film from the inside of two support shell, after the completion, according to the above operation reverse can be reinstalled winding roller, through the above operation realizes the automatic winding of plastic film and the convenient disassembly and installation of winding roller, thereby simplifying the processing operation process and improving the production efficiency.

[0017] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating labor.

[0019] Figure 1 The overall structure of the present application is shown in the figure.

[0020] Figure 2 It is the whole local section structure schematic view of the utility model;

[0021] Figure 3 It is the installation mechanism structure schematic view of the utility model;

[0022] Figure 4 It is the connection mechanism structure schematic view of the utility model;

[0023] Figure 5 It is Figure 4 The enlarged structure schematic view of A in the middle.

[0024] In the drawing, the component list represented by each sign is as follows:

[0025] 1, installation shell;11, melting machine;2, installation mechanism;21, first conveying roller;22, film blowing machine;23, cooling fan;24, shell with hole;25, connecting pipe;26, fixed shell;27, first electric push rod;28, connecting plate;29, fixed rod;210, sliding shell;211, pull plate;3, connection mechanism;301, second conveying roller;31, bottom shell;32, connecting rod;33, first connecting shell;34, second connecting shell;35, motor;36, rotating shaft;37, second electric push rod;38, support shell;39, winding roller;310, cross concave shell;311, cross convex shell. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. 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 those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model discloses a kind of film blowing devices for plastic film production and processing, including installation shell 1 and melting machine 11, installation shell 1 is provided with installation mechanism 2 and connection mechanism 3;

[0028] The installation mechanism 2 comprises two first conveying rollers 21 rotatably connected to the top of the inner wall of the installation shell 1, the outer wall of the installation shell 1 is fixedly connected with the inner wall of the installation shell 1, the right side of the melting machine 11 is communicated and fixedly connected with a film blowing machine 22, the bottom of the film blowing machine 22 is in contact with the bottom of the inner wall of the installation shell 1, the bottom of the inner wall of the installation shell 1 is fixedly connected with a cooling fan 23, the output end of the cooling fan 23 is communicated and fixedly connected with a connecting pipe 25, the top of the film blowing machine 22 is fixedly connected with a perforated shell 24, the other end of the connecting pipe 25 is communicated and fixedly connected with the outer wall of the perforated shell 24, the rear side of the inner wall of the installation shell 1 is fixedly connected with a fixed shell 26, the inner wall of the fixed shell 26 is fixedly connected with a first electric push rod 27, the inner wall of the fixed shell 26 is rotatably connected with two connecting plates 28, the two connecting plates 28 are symmetrically arranged with the fixed shell 26 as the center axis, the inner wall of the fixed shell 26 is fixedly connected with a fixed rod 29, the outer wall of the fixed rod 29 is slidably connected with a sliding shell 210, first, the material is placed into the interior of the melting machine 11 for hot melting, after completion, the film blowing is carried out through the film blowing machine 22, then the cooling fan 23 is started, the conveying wind of the cooling fan 23 enters the interior of the perforated shell 24 through the connecting pipe 25 and is sprayed out, and the blown film is cooled, then the blown film passes through the fixed shell 26 and the two connecting plates 28 and is in contact with the outer wall of the two first conveying rollers 21, then the first electric push rod 27 is started, and the first electric push rod 27 drives the sliding shell 210 and the two pull plates 211 to slide downward on the outer wall of the fixed rod 29.

[0029] The bottom of the sliding shell 210 is fixedly connected with the output end of the first electric push rod 27, the front side of the sliding shell 210 is hingedly connected with two pull plates 211, the two pull plates 211 are symmetrically arranged with the fixed shell 26 as the center axis, and the front side of each of the two pull plates 211 is hingedly connected with the rear side of each of the two connecting plates 28, then the two pull plates 211 drive the two connecting plates 28 to rotate downward on the inner wall of the fixed shell 26, the gap between the two connecting plates 28 is adjusted by starting and stopping the first electric push rod 27 in reverse, then the gap is adjusted to the appropriate size so that the thickness of the blown film meets the required specifications, then the blown film is in contact with the outer wall of the second conveying roller 301, and then is in contact with the outer wall of the winding roller 39 for winding, then the film is wound through the connecting mechanism 3, through the above operation, the thickness of the film can be quickly and effectively controlled, the processing requirements are met, the thickness of the film is uniform, and the quality and consistency of the product are improved.

[0030] The connecting mechanism 3 comprises a second conveying roller 301 rotatably connected to the inner wall of the installation shell 1, and a bottom shell 31 fixedly connected to the bottom of the inner wall of the installation shell 1, the film is processed and blown through the installation mechanism 2 first, then is in contact with the outer wall of the second conveying roller 301, and then is wound with the outer wall of the winding roller 39.

[0031] The inner wall of the bottom shell 31 is fixedly connected with two connecting rods 32, the two connecting rods 32 are symmetrically arranged with the bottom shell 31 as the center axis, the outer wall of the two connecting rods 32 is slidably connected with a first connecting shell 33, then the motor 35 is started, the motor 35 drives the front shaft 36 to rotate with the front cross concave shell 310 and the front cross convex shell 311 and the roll 39 and the film in the inside of the two support shells 38.

[0032] The inner wall of the bottom shell 31 is fixedly connected with a second connecting shell 34, the inner wall of the first connecting shell 33 is fixedly connected with a motor 35, the inner wall of the bottom shell 31 is provided with two shafts 36, then the motor 35 is started, the motor 35 drives the front shaft 36 to rotate with the front cross concave shell 310 and the front cross convex shell 311 and the roll 39 and the film in the inside of the two support shells 38.

[0033] The output end of the motor 35 is fixedly connected with the front end of the front shaft 36 through a shaft coupling, the rear end of the rear shaft 36 is rotatably connected with the inner wall of the second connecting shell 34, then the roll 39 drives the rear cross convex shell 311 to rotate with the cross concave shell 310 and the rear shaft 36 in the inner wall of the second connecting shell 34.

[0034] The inner wall of the bottom shell 31 is fixedly connected with a second electric push rod 37, the output end of the second electric push rod 37 is fixedly connected with the rear side of the first connecting shell 33, the inner wall of the bottom shell 31 is fixedly connected with two support shells 38 at the bottom, the two support shells 38 are symmetrically arranged with the bottom shell 31 as the center axis, which makes the roll 39 rotate to wind the film, after completion, the motor 35 is stopped, the second electric push rod 37 is started, the second electric push rod 37 drives the first connecting shell 33 to slide forward on the outer wall of the two connecting rods 32.

[0035] The inner wall of the two support shells 38 is rotatably connected with a roll 39, the rear end of the front shaft 36 is fixedly connected with the front end of the rear shaft 36, the front end and the rear end of the roll 39 are fixedly connected with a cross convex shell 311, the outer wall of the two cross convex shells 311 is slidably connected with the inner wall of the two cross concave shells 310, then the first connecting shell 33 drives the motor 35 to disengage from the front shaft 36 and the cross concave shell 310 and contact with the front cross convex shell 311, then the roll 39 is slid forward in the inner wall of the two support shells 38, at this time the roll 39 drives the rear cross convex shell 311 to disengage from the rear cross concave shell 310, then the roll 39 and the wound film are taken out from the inside of the two support shells 38, after completion, the reverse of the above operation can reinstall the roll 39, through the above operation, the automatic winding of the plastic film and the convenient disassembly and installation of the roll 39 are realized, thereby the processing operation process is simplified and the production efficiency is improved.

[0036] One specific application of the embodiment is: the melting machine 11, the melting machine is a device for heating solid plastic to molten state in the film blowing device for plastic film production and processing, its function is to heat and melt the plastic raw material and mix it uniformly, to provide suitable molten plastic for subsequent film blowing, while accurately controlling the amount of supply, to ensure the continuity and quality stability of film production, it realizes the stirring, propulsion and shearing of plastic through the rotation of the screw, so that the different components are fully mixed, and the film performance is improved.

[0037] When using the device, first put the material into the inside of the melting machine 11 for hot melting, then blow the film through the film blowing machine 22, then start the cooling fan 23, the conveying wind of the cooling fan 23 enters the inside of the perforated shell 24 through the connecting pipe 25 and sprays out, and then the blown film is cooled, then the blown film is in contact with the outer wall of the two first conveying rollers 21 through the fixed shell 26 and the two connecting plates 28, then start the first electric push rod 27, the first electric push rod 27 drives the sliding shell 210 and the two pull plates 211 to slide downward on the outer wall of the fixed rod 29, then the two pull plates 211 drive the two connecting plates 28 to rotate downward on the inner wall of the fixed shell 26, the gap between the two connecting plates 28 is adjusted by starting and stopping the first electric push rod 27 in reverse, then adjust the appropriate gap so that the thickness of the blown film meets the required specifications, then the blown film is in contact with the outer wall of the second conveying roller 301, then in contact with the outer wall of the winding roller 39, then the film is wound, then the film is wound through the connecting mechanism 3, through the above operation, the thickness of the film can be quickly and effectively controlled, the processing requirements are met, so as to ensure that the thickness of the film is uniform, thereby improving the quality and consistency of the product.

[0038] When using the device, first process and blow the film through the mounting mechanism 2, then wind the film on the outer wall of the winding roller 39, then start the motor 35, the motor 35 drives the front side rotating shaft 36, the front side cross concave shell 310 and the front side cross convex shell 311 to rotate with the winding roller 39 and the film in the inside of the two support shells 38, then the winding roller 39 drives the rear side cross convex shell 311, the cross concave shell 310 and the rear side rotating shaft 36 to rotate on the inner wall of the second connecting shell 34, which makes the winding roller 39 rotate to wind the film, after completion, stop the motor 35, start the second electric push rod 37, the second electric push rod 37 drives the first connecting shell 33 to slide forward on the outer wall of the two connecting rods 32, then the first connecting shell 33 drives the motor 35 and the front side rotating shaft 36 and the cross concave shell 310 to separate from the contact with the front side cross convex shell 311, then drag the winding roller 39 to slide forward in the inside of the two support shells 38, at this time the winding roller 39 drives the rear side cross convex shell 311 to separate from the contact with the rear side cross concave shell 310, then take out the winding roller 39 and the wound film from the inside of the two support shells 38, after completion, reverse the above operation to reinstall the winding roller 39, through the above operation, the automatic winding of the plastic film and the convenient disassembly and installation of the winding roller 39 are realized, thereby simplifying the processing operation process and improving the production efficiency.

[0039] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A film blowing device for plastic film production and processing, comprising a mounting shell (1) and a melting machine (11), characterized in that: The installation shell (1) is provided with an installation mechanism (2) and a connecting mechanism (3); The installation mechanism (2) comprises two first conveying rollers (21) rotatably connected to the top of the inner wall of the installation shell (1), the outer wall of the installation shell (1) is fixedly connected with the inner wall of the installation shell (1), the right side of the melting machine (11) is communicated with and fixedly connected with a film blowing machine (22), the bottom of the film blowing machine (22) is in contact with the bottom of the inner wall of the installation shell (1), the bottom of the inner wall of the installation shell (1) is fixedly connected with a cooling fan (23), the output end of the cooling fan (23) is communicated with and fixedly connected with a connecting pipe (25), the top of the film blowing machine (22) is fixedly connected with a hole shell (24), the other end of the connecting pipe (25) is communicated with and fixedly connected with the outer wall of the hole shell (24), the rear side of the inner wall of the installation shell (1) is fixedly connected with a fixed shell (26), and the inner wall of the fixed shell (26) is fixedly connected with a first electric push rod (27).

2. The film blowing device for plastic film production and processing according to claim 1, characterized in that, The inner wall of the fixed shell (26) is rotatably connected with two connecting plates (28), the two connecting plates (28) are symmetrically arranged with the fixed shell (26) as the center axis, the inner wall of the fixed shell (26) is fixedly connected with a fixed rod (29), the outer wall of the fixed rod (29) is slidably connected with a sliding shell (210), the bottom of the sliding shell (210) is fixedly connected with the output end of the first electric push rod (27), the front side of the sliding shell (210) is hingedly connected with two pull plates (211), the two pull plates (211) are symmetrically arranged with the fixed shell (26) as the center axis, and the front side of each of the two pull plates (211) is hingedly connected with the rear side of each of the two connecting plates (28).

3. The film blowing device for plastic film production and processing according to claim 2, characterized in that, The connecting mechanism (3) comprises a second conveying roller (301) rotatably connected to the inner wall of the installation shell (1), and the bottom of the inner wall of the installation shell (1) is fixedly connected with a bottom shell (31).

4. The film blowing device for plastic film production and processing according to claim 3, characterized in that, The inner wall of the bottom shell (31) is fixedly connected with two connecting rods (32), the two connecting rods (32) are symmetrically arranged with the bottom shell (31) as the center axis, and the outer wall of each of the two connecting rods (32) is slidably connected with a first connecting shell (33).

5. The film blowing device for plastic film production and processing according to claim 4, characterized in that, The bottom of the inner wall of the bottom shell (31) is fixedly connected with a second connecting shell (34), the inner wall of the first connecting shell (33) is fixedly connected with a motor (35), and the inner wall of the bottom shell (31) is provided with two rotating shafts (36).

6. The film blowing device for plastic film production and processing according to claim 5, characterized in that, The output end of the motor (35) is fixedly connected with the front end of the front rotating shaft (36) through a shaft coupling, and the rear end of the rear rotating shaft (36) is rotatably connected with the inner wall of the second connecting shell (34).

7. The film blowing device for plastic film production and processing according to claim 6, characterized in that, The inner wall of the bottom shell (31) is fixedly connected with a second electric push rod (37), the output end of the second electric push rod (37) is fixedly connected with the rear side of the first connecting shell (33), the bottom of the inner wall of the bottom shell (31) is fixedly connected with two supporting shells (38), and the two supporting shells (38) are symmetrically arranged with the bottom shell (31) as the center axis.

8. The film blowing device for plastic film production and processing according to claim 7, characterized in that, The inner wall of the two support shells (38) is rotationally connected with a winding roller (39), the rear end of the front rotating shaft (36) and the front end of the rear rotating shaft (36) are fixedly connected with cross concave shells (310), the front end and the rear end of the winding roller (39) are fixedly connected with cross convex shells (311), and the outer wall of the two cross convex shells (311) is slidingly connected with the inner wall of the two cross concave shells (310).

Citation Information

Patent Citations

  • Film blowing device for plastic film production and processing

    CN117601412A