Film blowing machine with auxiliary positioning structure

By introducing a limiting structure consisting of a double-headed electric telescopic column and a limiting plate into the blown film machine, combined with the adjustment design of the sliding frame and tension roller, the problems of material deviation and tension adjustment are solved, thereby improving production efficiency and product quality.

CN223835036UActive Publication Date: 2026-01-27SHENYANG ZHONGHE PLASTIC PACKAGING PROD CO LTD
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Patent Information

Application Number
CN202520400097.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-27
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Blown film machines are difficult to adjust the limit according to the material size, which leads to material deviation, affecting production efficiency and product quality. At the same time, they lack the flexibility to adjust the material tension.

Method used

A blown film machine with an auxiliary positioning structure was designed. It uses a double-headed electric telescopic column and a limiting plate in conjunction with a limiting roller to achieve precise material positioning. The tension is precisely adjusted by combining a sliding frame and a tension roller.

Benefits of technology

It enables flexible limiting and tension adjustment based on material size, improving production efficiency and product quality, and meeting actual needs for adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of film blowing machines, and discloses a film blowing machine with an auxiliary positioning structure. The limiting part is arranged at the top of the bottom plate; the adjusting part is arranged on one side of the limiting part; the film blowing machine body is mounted at the top of the bottom plate; the bottom legs are fixedly connected to the bottom of the bottom plate; wherein the limiting part comprises a fixing frame, a limiting part and a limiting part, and the fixing frame is fixedly connected to the top of the bottom plate; the first fixing seats are fixedly connected to one side of the fixing frame, and the first fixing seats are symmetrically arranged. Materials are installed on the outer wall of the material storage roller, so that one end of each material penetrates through the space between the limiting rollers, then a double-end electric telescopic column is driven according to the width of the materials, the double-end electric telescopic column drives limiting plates on the two sides to slide along the track of a fixed rail at the same time, and the sliding directions of the limiting plates on the two sides are opposite; in this way, the purpose of limiting the materials is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, specifically a blown film machine with an auxiliary positioning structure. Background Technology

[0002] A blown film machine heats and melts plastic particles and then blows them into a thin film. There are many types of blown film machines, including those for PE, POF, PVC, etc. Using brand-new particles results in virgin material, uniform color, cleanliness, and good bag stretching. The films produced by blown film machines are suitable for various high-end film packaging. Due to their good barrier properties, freshness preservation, moisture protection, frost protection, oxygen barrier, and oil resistance, these films can be widely used for light and heavy packaging, such as various fresh fruits, meat products, pickles, fresh milk, liquid beverages, and pharmaceuticals.

[0003] Currently, a common challenge faced by blown film machines in daily applications is the difficulty in flexibly adjusting the limit according to the size of the material. This causes the material to easily shift during use, which not only affects production efficiency and product quality but may also cause a series of problems. In addition, some blown film machine devices lack sufficient flexibility in design and cannot meet the need to adjust the material tension according to actual needs. Utility Model Content

[0004] The purpose of this utility model is to provide a blown film machine with an auxiliary positioning structure, which solves a common challenge faced by blown film machines in daily applications: the difficulty in flexibly adjusting the limit according to the size of the material. This causes the material to easily shift during use, which not only affects production efficiency and product quality, but may also cause a series of problems. In addition, some blown film machine devices lack sufficient flexibility in design and cannot meet the technical problem of adjusting the material tension according to actual needs. This invention achieves the purpose of adjusting the limit and tension according to the material size.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blown film machine with an auxiliary positioning structure, comprising: a base plate; a limiting part disposed on the top of the base plate; an adjusting part disposed on one side of the limiting part; a blown film machine body mounted on the top of the base plate; and base legs fixedly connected to the bottom of the base plate; wherein the limiting part includes: a fixing frame fixedly connected to the top of the base plate; and a fixing seat fixedly connected to one side of the fixing frame, wherein the fixing seats are symmetrically arranged.

[0006] Preferably, a storage roller is rotatably connected between the inner sides of the first fixed seat, a second fixed seat is fixedly connected to one side of the fixed frame, the second fixed seats are symmetrically arranged, a fixed rail is fixedly connected to one side of the fixed frame, the fixed rails are symmetrically arranged, and a double-headed electric telescopic column is fixedly connected to one side of the fixed frame. By driving the double-headed electric telescopic column, the position of the two side limit plates can be quickly and accurately adjusted.

[0007] Preferably, the inner sides of the fixed base two are rotatably connected to the limiting rollers, the limiting rollers are symmetrically arranged, the outer wall of the fixed rail is slidably connected to the limiting plate, the limiting plate is adapted to the limiting rollers, the limiting plate has a sliding opening inside, and one side of the limiting plate is fixedly connected to the output end of the double-headed electric telescopic column.

[0008] Preferably, the adjustment part includes: a connecting seat, which is fixedly connected to one side of the fixing frame, the connecting seats are symmetrically arranged, and the connecting seat has a second sliding opening inside; and a guide frame, which is fixedly connected between the inner sides of the second sliding opening.

[0009] Preferably, a sliding frame is slidably connected to the inner wall of the second slide, the sliding frame is slidably connected to the outer wall of the guide frame, a rotating column is rotatably connected between the inner sides of the sliding frame, a tension roller is fixedly connected to the outer wall of the rotating column, and the tension roller is slidably connected inside the first slide. By driving the sliding frame to slide along the trajectory of the second slide, the position of the tension roller can be easily adjusted, thereby achieving precise control of the material tension.

[0010] Preferably, a cam is rotatably connected between the inner sides of the guide frame, one end of the cam is fixedly connected to a connecting post, one end of the connecting post extends outward through the guide frame and the connecting seat, and one end of the connecting post is fixedly connected to a circular chuck. A locking rod is rotatably connected to one side of the connecting seat via a base, and the locking rod engages with the circular chuck. By moving the locking rod, the engagement and disengagement of the circular chuck and the locking rod are controlled, thereby fixing and unlocking the position of the sliding frame.

[0011] Preferably, a sliding plate is slidably connected to the inner wall of the guide frame. The sliding plates are symmetrically arranged and adapted to the cam. An installation groove is provided on one side of the sliding plate. An anti-slip pad is fixedly connected inside the installation groove and is adapted to the inner wall of the sliding frame.

[0012] This invention provides a blown film machine with an auxiliary positioning structure. It has the following advantages:

[0013] (1) This utility model installs the material on the outer wall of the storage roller, so that one end of the material passes between the limiting rollers. Then, according to the width of the material, the double-headed electric telescopic column is driven, so that the double-headed electric telescopic column drives the limiting plates on both sides to slide along the track of the fixed rail at the same time, and the sliding directions of the two limiting plates are opposite, thereby achieving the purpose of limiting the material.

[0014] (2) This utility model drives the sliding frame to slide along the trajectory of the second sliding opening, thereby driving the rotating column and the tension roller to slide, thereby achieving the purpose of adjusting the position of the tension roller and thus adjusting the tension of the material. Then, the lever is moved so that the lever is no longer engaged with the circular chuck. The circular chuck is held and controlled to rotate 90 degrees, thereby driving the cam to rotate under the transmission of the connecting column, thereby pushing the sliding plate to slide and squeezing the inner wall of the sliding frame. Under the action of the anti-slip pad, it is rubbed against the inner wall of the sliding frame to achieve the purpose of fixing the position of the sliding frame. Then, the lever is loosened, and under the action of gravity, it is engaged with the circular chuck to achieve the purpose of freely adjusting the position of the tension roller. Attached Figure Description

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

[0016] Figure 2 This is a front view of the present utility model;

[0017] Figure 3 This is a view of the limiting part of the present invention;

[0018] Figure 4 This is a view of the adjustment part of the present invention;

[0019] Figure 5 This is a detailed view of the adjustment part of this utility model.

[0020] In the diagram: 1. Base plate, 2. Limiting part, 3. Adjusting part, 4. Blown film machine body, 5. Base leg;

[0021] 211 Fixed frame, 212 Fixed seat one, 213 Storage roller, 214 Fixed seat two, 215 Limiting roller, 216 Fixed rail, 217 Limiting plate, 218 Double-headed electric telescopic column;

[0022] 311 Connecting seat, 312 Guide frame, 313 Sliding frame, 314 Rotating column, 315 Tension roller, 316 Cam, 317 Connecting column, 318 Circular chuck, 319 Clamping rod, 320 Sliding plate, 321 Anti-slip pad. Detailed Implementation

[0023] 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.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] One common challenge faced by blown film machines in daily applications is the difficulty in flexibly adjusting the limit according to the material size. This leads to material deviation during use, affecting production efficiency and product quality, and potentially causing a series of problems. Furthermore, some blown film machine designs lack sufficient flexibility to meet the technical requirements of adjusting material tension according to actual needs. The preferred embodiment of this utility model, a blown film machine with an auxiliary positioning structure, is as follows: Figure 1-5 As shown: A blown film machine with an auxiliary positioning structure includes: a base plate 1; a limiting part 2 disposed on the top of the base plate 1; an adjusting part 3 disposed on one side of the limiting part 2; a blown film machine body 4, mounted on the top of the base plate 1; and a bottom leg 5, fixedly connected to the bottom of the base plate 1; wherein the limiting part 2 includes: a fixing frame 211, fixedly connected to the top of the base plate 1; and a fixing seat 212, fixedly connected to one side of the fixing frame 211, with the fixing seats 212 symmetrically arranged.

[0027] A storage roller 213 is rotatably connected between the inner sides of the fixed base 212. A fixed base 214 is fixedly connected to one side of the fixed frame 211. The fixed bases 214 are symmetrically arranged. A fixed rail 216 is fixedly connected to one side of the fixed frame 211. The fixed rails 216 are symmetrically arranged. A double-headed electric telescopic column 218 is fixedly connected to one side of the fixed frame 211.

[0028] A limiting roller 215 is rotatably connected between the inner sides of the fixed base 214. The limiting rollers 215 are symmetrically arranged. A limiting plate 217 is slidably connected to the outer wall of the fixed rail 216. The limiting plate 217 is adapted to the limiting roller 215. A sliding opening is provided inside the limiting plate 217. One side of the limiting plate 217 is fixedly connected to the output end of the double-headed electric telescopic column 218.

[0029] Furthermore, in this embodiment, the material is installed on the outer wall of the storage roller 213, so that one end of the material passes between the limiting rollers 215. Then, according to the width of the material, the double-headed electric telescopic column 218 is driven, so that the double-headed electric telescopic column 218 drives the limiting plates 217 on both sides to slide simultaneously along the trajectory of the fixed rail 216, and the two limiting plates 217 slide in opposite directions, thereby achieving the purpose of limiting the material.

[0030] Example 2:

[0031] Based on Embodiment 1, a preferred embodiment of the blown film machine with an auxiliary positioning structure provided by this utility model is, for example... Figure 1-5 As shown: Adjustment part 3 includes: connecting seat 311, which is fixedly connected to one side of fixed frame 211. The connecting seats 311 are symmetrically arranged, and the interior of the connecting seat 311 has a sliding opening 2; guide frame 312, which is fixedly connected between the inner sides of the sliding opening 2.

[0032] A sliding frame 313 is slidably connected to the inner wall of the second slide. The sliding frame 313 is slidably connected to the outer wall of the guide frame 312. A rotating column 314 is rotatably connected between the inner sides of the sliding frame 313. A tension roller 315 is fixedly connected to the outer wall of the rotating column 314. The tension roller 315 is slidably connected inside the first slide.

[0033] A cam 316 is rotatably connected between the inner sides of the guide frame 312. A connecting post 317 is fixedly connected to one end of the cam 316. One end of the connecting post 317 extends outward through the guide frame 312 and the connecting seat 311. A circular chuck 318 is fixedly connected to one end of the connecting post 317. A locking rod 319 is rotatably connected to one side of the connecting seat 311 through the base. The locking rod 319 engages with the circular chuck 318.

[0034] The inner wall of the guide frame 312 is slidably connected to a sliding plate 320. The sliding plates 320 are symmetrically arranged and are adapted to the cam 316. A mounting groove is provided on one side of the sliding plate 320. An anti-slip pad 321 is fixedly connected inside the mounting groove and is adapted to the inner wall of the sliding frame 313.

[0035] Furthermore, in this embodiment, the sliding frame 313 is driven to slide along the trajectory of the second sliding opening, thereby causing the rotating column 314 and the tension roller 315 to slide, thus achieving the purpose of adjusting the position of the tension roller 315 and thus adjusting the tension of the material. Then, the lever 319 is moved so that the lever 319 is no longer engaged with the circular chuck 318. The circular chuck 318 is held and controlled to rotate 90 degrees, thereby driving the cam 316 to rotate under the transmission of the connecting column 317, thereby pushing the sliding plate 320 to slide, so that it squeezes the inner wall of the sliding frame 313. Under the action of the anti-slip pad 321, it is made to rub against the inner wall of the sliding frame 313, thereby achieving the purpose of fixing the position of the sliding frame 313. Then, the lever 319 is loosened, and under the action of gravity, it is engaged with the circular chuck 318, thereby achieving the purpose of freely adjusting the position of the tension roller 315.

[0036] In use, firstly, the material is installed on the outer wall of the storage roller 213, so that one end of the material passes between the limiting rollers 215. Then, according to the width of the material, the double-headed electric telescopic column 218 is driven, causing the limiting plates 217 on both sides to slide simultaneously along the trajectory of the fixed rail 216, and the two limiting plates 217 slide in opposite directions, thereby achieving the purpose of limiting the material. Secondly, the sliding frame 313 is driven to slide along the trajectory of the second sliding opening, thereby causing the rotating column 314 and the tension roller 315 to slide, thereby achieving the purpose of adjusting the position of the tension roller 315, and thus achieving the purpose of adjusting the material tension. Then, move the lever 319 so that it is no longer engaged with the circular chuck 318. Hold and control the circular chuck 318 to rotate 90 degrees. Under the transmission of the connecting column 317, the cam 316 is driven to rotate, thereby pushing the sliding plate 320 to slide and press it against the inner wall of the sliding frame 313. Under the action of the anti-slip pad 321, it is made to rub against the inner wall of the sliding frame 313, thereby fixing the position of the sliding frame 313. Then, loosen the lever 319, and under the action of gravity, it engages with the circular chuck 318, thereby achieving the purpose of freely adjusting the position of the tension roller 315.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A blown film machine with an auxiliary positioning structure, characterized in that, Includes: base plate (1); The limiting part (2) is set at the top of the base plate (1); An adjustment part (3) is provided on one side of the limiting part (2); The blown film machine body (4) is installed on top of the base plate (1); The bottom leg (5) is fixedly connected to the bottom of the base plate (1); The limiting part (2) includes: The fixing bracket (211) is fixedly connected to the top of the base plate (1); Fixing base one (212) is fixedly connected to one side of fixing frame (211), and fixing base one (212) is symmetrically arranged; The adjustment part (3) includes: A connecting seat (311) is fixedly connected to one side of a fixing frame (211). The connecting seats (311) are symmetrically arranged, and a sliding opening is provided inside the connecting seat (311). The guide frame (312) is fixedly connected between the inner sides of the slide two; The inner wall of the second sliding opening is slidably connected to a sliding frame (313), the sliding frame (313) is slidably connected to the outer wall of the guide frame (312), the inner sides of the sliding frame (313) are rotatably connected to a rotating column (314), the outer wall of the rotating column (314) is fixedly connected to a tension roller (315), and the tension roller (315) is slidably connected to the inside of the first sliding opening; A cam (316) is rotatably connected between the inner sides of the guide frame (312). A connecting post (317) is fixedly connected to one end of the cam (316). One end of the connecting post (317) extends outward through the guide frame (312) and the connecting seat (311). A circular chuck (318) is fixedly connected to one end of the connecting post (317). A locking rod (319) is rotatably connected to one side of the connecting seat (311) through the base. The locking rod (319) engages with the circular chuck (318). The inner wall of the guide frame (312) is slidably connected to a sliding plate (320). The sliding plates (320) are symmetrically arranged and are adapted to the cam (316). A mounting groove is provided on one side of the sliding plate (320). An anti-slip pad (321) is fixedly connected inside the mounting groove and is adapted to the inner wall of the sliding frame (313).

2. The blown film machine with an auxiliary positioning structure according to claim 1, characterized in that: A storage roller (213) is rotatably connected between the inner sides of the first fixed seat (212). A second fixed seat (214) is fixedly connected to one side of the fixed frame (211). The second fixed seat (214) is symmetrically arranged. A fixed rail (216) is fixedly connected to one side of the fixed frame (211). The fixed rail (216) is symmetrically arranged. A double-headed electric telescopic column (218) is fixedly connected to one side of the fixed frame (211).

3. A blown film machine with an auxiliary positioning structure according to claim 2, characterized in that: The inner sides of the fixed base (214) are rotatably connected to the limiting roller (215), the limiting roller (215) is symmetrically arranged, the outer wall of the fixed rail (216) is slidably connected to the limiting plate (217), the limiting plate (217) is adapted to the limiting roller (215), the limiting plate (217) has a sliding opening, and one side of the limiting plate (217) is fixedly connected to the output end of the double-headed electric telescopic column (218).