CN219341151U

CN219341151U - Tractor for BOPP film traction

Info

Publication number: CN219341151U
Application number: CN202320228873.2U
Authority: CN
Inventors: 贝楠
Original assignee: Shantou Special Economic Zone Xiongwei Plastic Packaging Materials Co ltd
Current assignee: Shantou Special Economic Zone Xiongwei Plastic Packaging Materials Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-07-14
Anticipated expiration: 2033-02-16

Abstract

The utility model relates to a tractor for BOPP film traction, which solves the problem that the film clamping strength is difficult to control and comprises a frame, a rolling assembly, a first roll shaft, a second roll shaft and two mounting assemblies, wherein the rolling assembly is arranged on the frame, the first roll shaft is in rotating fit on the frame, the second roll shaft is arranged above the first roll shaft, the two mounting assemblies are arranged on the frame, and two ends of the second roll shaft are respectively connected with the two mounting assemblies in a rotating way. Belongs to the technical field of film processing equipment.

Description

Tractor for BOPP film traction

Technical Field

The utility model belongs to the technical field of film processing equipment, and particularly relates to a tractor for BOPP film traction.

Background

The BOPP film is produced by making high molecular polypropylene melt into sheet or thick film through a long and narrow machine head, stretching the sheet or thick film in two vertical directions (longitudinal and transverse directions) at a certain temperature and a set speed in a special stretching machine, and carrying out proper cooling or heat treatment or special processing (such as corona and coating) to obtain the film.

The film traction machine is usually used for clamping films with different thicknesses, so that the films are wrinkled. For example, chinese patent publication No. CN210854608U discloses a film rim charge traction mechanism, which drives two risers to move vertically through a rotating column, so as to adjust the distance between the first traction roller and the second traction roller, but the mode is difficult to control the clamping force on the film, the film is easily torn due to the too high clamping force, the clamping force is lower, and wrinkles are easily generated.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a tractor for stretching a BOPP film, which solves the problem that the film clamping strength is difficult to control.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a tractor for BOPP film traction includes frame, rolling subassembly, first roller, second roller and two installation components, the rolling subassembly is located in the frame, first roller normal running fit is in the frame, the second roller is located the top of first roller, two installation components are all located in the frame, the both ends of second roller respectively with two installation components rotate and are connected.

As a preferable technical scheme of the utility model, the winding assembly comprises a driving motor and a driving roller, wherein the driving motor is arranged on the frame and is in transmission connection with the driving roller, and the first roller shaft and the driving roller are arranged along the feeding direction.

As a preferable technical scheme of the utility model, the two mounting assemblies comprise a base, a guide shaft, a sliding block, an adjusting part and a floating part, wherein the base is arranged on the frame, two ends of the guide shaft are connected with the base, the sliding block is in sliding fit on the guide shaft, the second roll shaft is in rotating fit on the sliding block, the adjusting part is arranged on the base, the adjusting part drives the sliding block to reciprocate along the vertical direction, and the floating part is in fit on one end of the sliding block.

As a preferable technical solution of the present utility model, the adjusting member includes an adjusting bolt, one end of the adjusting bolt is screwed with the base, and the end penetrates through the base and contacts with the slider.

As a preferable technical scheme of the utility model, the floating component comprises a limit column and a spring, one end of the limit column is movably matched with the base, the other end of the limit column is connected with the sliding block, and the spring is sleeved on the limit column.

As a preferable technical scheme of the utility model, the base is provided with a position sensor, and the position sensor is matched with the sliding block.

As a preferable technical scheme of the utility model, the base is provided with the kidney-shaped hole, and the base is arranged on the frame through the screw and the kidney-shaped hole.

As a preferable technical scheme of the utility model, one end of the driving roller is provided with a handle in a matching way.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the sliding block can slide along the guide shaft through the rotating structure of the adjusting bolt, so that the distance between the first roll shaft and the second roll shaft is changed, the second roll shaft has downward pressure under the action of the elasticity of the spring, the clamping strength of the first roll shaft and the second roll shaft on the film is improved, the traction force of the film is improved, and the equipment operation is more stable;

2. the base of this equipment adopts detachable structural design, can accomplish through the dismouting of second roller, very big reduction the later stage to the change degree of difficulty of roll body, can change the roller of different sizes and sizes according to the demand, improve application ability, convenient to use.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of another direction of the present utility model;

FIG. 3 is a schematic view of the mounting assembly of the present utility model;

description of the main reference signs

In the figure: 1. a frame; 2. a winding assembly; 21. a driving motor; 22. a drive roll; 221. a handle; 3. a first roller shaft; 4. a second roller shaft; 5. a mounting assembly; 51. a base; 511. a position sensor; 512. waist-shaped holes; 52. a guide shaft; 53. a slide block; 54. an adjusting member; 55. a floating member; 551. a limit column; 552. and (3) a spring.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-3, the present embodiment provides a tractor for stretching BOPP films, which includes a frame 1, a winding assembly 2, a first roller shaft 3, a second roller shaft 4 and two mounting assemblies 5, wherein the winding assembly 2 is disposed on the frame 1, the first roller shaft 3 is rotationally matched on the frame 1, the second roller shaft 4 is disposed above the first roller shaft 3, the two mounting assemblies 5 are disposed on the frame 1, and two ends of the second roller shaft 4 are respectively rotationally connected with the two mounting assemblies 5; the winding component 2 is used for winding films, and the films are clamped and guided by the first roll shaft 3 and the second roll shaft 4 in the winding process, so that the films can be subjected to a certain extrusion force, and the films can be stably wound.

For stable film winding, in an embodiment, the winding assembly 2 includes a driving motor 21 and a driving roller 22, the driving motor 21 is disposed on the frame 1 and is in transmission connection with the driving roller 22, the first roller shaft 3 and the driving roller 22 are disposed along the feeding direction, and the driving roller 22 is driven to rotate by the driving motor 21, so that the driving roller 22 automatically winds the film, and further winding is achieved.

In order to adjust the distance between the two roller shafts and realize the control of the clamping force between the two roller shafts, in one embodiment, each of the two mounting assemblies 5 comprises a base 51, a guide shaft 52, a sliding block 53, an adjusting component 54 and a floating component 55, the base 51 is arranged on the frame 1, both ends of the guide shaft 52 are connected with the base 51, the sliding block 53 is in sliding fit on the guide shaft 52, the second roller shaft 4 is in rotating fit on the sliding block 53, the adjusting component 54 is arranged on the base 51, the adjusting component 54 drives the sliding block 53 to reciprocate along the vertical direction, and the floating component 55 is in matching arrangement on one end of the sliding block 53; the adjusting part 54 includes an adjusting bolt having one end screwed with the base 51 and penetrating the base 51 and contacting the slider 53; the floating component 55 comprises a limit column 551 and a spring 552, one end of the limit column 551 is movably matched on the base 51, the other end of the limit column 551 is connected with the sliding block 53, and the spring 552 is sleeved on the limit column 551; the second roll shaft 4 is in running fit with the sliding block 53, through rotating the adjusting bolt, the sliding block 53 can slide along the guide shaft 52 in the vertical direction, the distance between the second roll shaft 4 and the first roll shaft 3 is changed, the spring 552 is sleeved on the guide column, the sliding is of a floating structure, the base 51 is of a detachable structure, and the spring 552 is matched with the base 51 to further ensure the clamping force between the second roll shaft 4 and the second roll shaft 4.

In order to identify and detect the position of the slider 53 and ensure the accuracy of the clamping force, in an embodiment, a position sensor 511 is disposed on the base 51, the position sensor 511 is matched with the slider 53, and the position sensor 511 detects and identifies the position of the slider 53, so that when the slider 53 is offset, an alarm can be given to the system in time, and an operator can find an abnormal situation in time.

In order to facilitate the disassembly and assembly of the base 51 and to change the relative position between the base 51 and the frame 1, in one embodiment, a kidney-shaped hole 512 is provided on the base 51, and the base 51 is mounted on the frame 1 by screws and the kidney-shaped hole 512.

To facilitate the removal of the wound film, in one embodiment, a handle 221 is provided at one end of the drive roller 22.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. A tractor for stretching BOPP films, characterized in that: including frame (1), rolling subassembly (2), first roller (3), second roller (4) and two installation component (5), rolling subassembly (2) are located in frame (1), first roller (3) normal running fit is in frame (1), second roller (4) are located the top of first roller (3), two installation component (5) are all located in frame (1), the both ends of second roller (4) respectively with two installation component (5) rotate and connect.

2. The tractor for stretching BOPP films according to claim 1, wherein: the winding assembly (2) comprises a driving motor (21) and a driving roller (22), the driving motor (21) is arranged on the frame (1) and is in transmission connection with the driving roller (22), and the first roller shaft (3) and the driving roller (22) are arranged along the feeding direction.

3. The tractor for stretching BOPP films according to claim 1, wherein: two installation component (5) all include base (51), guiding axle (52), slider (53), adjusting part (54) and floating part (55), base (51) are located on frame (1), both ends of guiding axle (52) all with base (51) are connected, slider (53) sliding fit is in on guiding axle (52), second roller (4) running fit is in on slider (53), adjusting part (54) are located on base (51), adjusting part (54) drive slider (53) are along vertical direction reciprocating motion, floating part (55) cooperation is located on the one end of slider (53).

4. A tractor for stretching BOPP films according to claim 3, wherein: the adjusting part (54) comprises an adjusting bolt, one end of the adjusting bolt is in threaded connection with the base (51), and the end penetrates through the base (51) and is in contact with the sliding block (53).

5. A tractor for stretching BOPP films according to claim 3, wherein: the floating component (55) comprises a limiting column (551) and a spring (552), one end of the limiting column (551) is movably matched with the base (51), the other end of the limiting column (551) is connected with the sliding block (53), and the spring (552) is sleeved on the limiting column (551).

6. A tractor for stretching BOPP films according to claim 3, wherein: the base (51) is provided with a position sensor (511), and the position sensor (511) is matched with the sliding block (53).

7. A tractor for stretching BOPP films according to claim 3, wherein: the base (51) is provided with a kidney-shaped hole (512), and the base (51) is arranged on the frame (1) through screws and the kidney-shaped hole (512).

8. The tractor for stretching BOPP films according to claim 2, wherein: one end of the driving roller (22) is provided with a handle (221) in a matching way.