CN220702785U

CN220702785U - Tensioning device for BOPP film rewinding

Info

Publication number: CN220702785U
Application number: CN202322429169.6U
Authority: CN
Inventors: 章昊; 吴佳斌; 孙展鹏
Original assignee: Wuxi Zhenchuang Packaging New Material Technology Co ltd
Current assignee: Wuxi Zhenchuang Packaging New Material Technology Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-04-02
Anticipated expiration: 2033-09-07

Abstract

The utility model discloses a tensioning device for BOPP film rewinding, which comprises a workbench, wherein guide rollers are symmetrically arranged at the top of the workbench, a tensioning module is arranged at the center of the top of the workbench, the tensioning module comprises a tensioning frame fixed at the center of the top of the workbench, sliding grooves are symmetrically formed in the inner wall of the tensioning frame, sliding blocks are arranged in the sliding grooves in a sliding manner, the tensioning rollers are rotationally connected between the two sliding blocks, guide wheels are symmetrically arranged at the top of the tensioning frame, connecting ropes are wound on the guide wheels, one ends of the connecting ropes are connected with the sliding blocks, and the other ends of the connecting ropes are connected with counterweight pieces. The tensioning roller moves upwards in the tensioning frame under the action of gravity of the counterweight, plays a role in tensioning the BOPP film, is simple in structure and not easy to damage, and effectively reduces the use cost.

Description

Tensioning device for BOPP film rewinding

Technical Field

The utility model relates to the technical field of BOPP film processing, in particular to a tensioning device for rewinding a BOPP film.

Background

The BOPP film is a plastic film which is formed by taking BOPP as a base material, coating acrylic glue on one side and attaching a release film (a single-layer release film is not attached), wherein the BOPP plastic film has smooth surface and high transparency, and is resistant to temperature and weather. The BOPP film needs to be rewound by utilizing the winding device in the processing treatment, and the BOPP film needs to be tensioned in the rewinding process of the BOPP film, so that the BOPP film is prevented from being wrinkled and the rewinding quality is prevented from being influenced.

The patent CN109607282B discloses a tensioning device for rolling up a rolled film, which comprises a workbench, wherein supporting feet are arranged at the bottom of the workbench, and a first rolling device, a first tensioning device, a second tensioning device, a third tensioning device and a second rolling device are sequentially fixed on the workbench. According to the utility model, the first tensioning device jacks up the rolled film, the second tensioning device extrudes the rolled film downwards, so that the tensioning force of the rolled film can be conveniently and rapidly adjusted, and meanwhile, the third tensioning device is arranged before film discharging, and compared with the first tensioning device and the second tensioning device, a third cylinder in the third tensioning device drives the third tensioning roller to move upwards in an inclined manner, the speed of the third tensioning roller in the vertical direction is slow, and the tensioning force can be finely adjusted before film discharging. The tensioning device in the scheme is complex in structure, needs to adopt an air cylinder to drive and control, and is high in manufacturing cost. Therefore, it is necessary to design a tensioner for rewinding BOPP film.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the tensioning device for rewinding the BOPP film, the tensioning roller moves upwards in the tensioning frame under the action of gravity of the counterweight, the tensioning effect on the BOPP film is achieved, the structure is simple, the BOPP film is not easy to damage, and the use cost is effectively reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tensioning device for BOPP membrane rewinding, includes the workstation, the guide roll is installed to the top symmetry of workstation, tensioning module is installed to the top center department of workstation, tensioning module is including fixing the tensioning frame in workstation top center department, the spout has been seted up to the inner wall symmetry of tensioning frame, the inside slip of spout has the slider, and rotates between two sliders and be connected with the tensioning roll, the guide pulley is installed to the top symmetry of tensioning frame, it has the connecting rope to encircle on the guide pulley, the one end and the slider of connecting rope are connected, the other end and the counter weight piece of connecting rope are connected.

Preferably, the counterweight comprises a locating plate connected to the tail end of the connecting rope, a screw is fixed at the center of the bottom of the locating plate, a movable plate is sleeved on the screw, a locating nut screwed on the screw is arranged below the movable plate, and a plurality of balancing weights clamped on the screw are arranged between the locating plate and the movable plate.

Preferably, the inside of balancing weight has seted up the water storage chamber, the water inlet that link up the water storage chamber has been seted up to the side of balancing weight, the upper cover that has screwed of water inlet.

Preferably, both ends of the tensioning roller are rotated on the sliding block through bearings.

Preferably, a guide tube is fixed at the side of the tensioning frame, and the connecting rope passes through the guide tube.

The beneficial effects of the utility model are as follows:

the tensioning roller moves upwards in the tensioning frame under the action of gravity of the counterweight, plays a tensioning role on the BOPP film, is simple in structure and not easy to damage, and effectively reduces the use cost.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall front plan structure of the present utility model;

FIG. 2 is a schematic front plan view of the tensioning module of the present utility model;

FIG. 3 is a schematic plan view of a weight according to the present utility model;

FIG. 4 is a schematic cross-sectional plan view of the balancing weight of the present utility model;

reference numerals in the drawings: 1. a work table; 2. a guide roller; 3. a tensioning module; 301. a tensioning frame; 302. a chute; 303. a slide block; 304. a tension roller; 305. a guide wheel; 306. a connecting rope; 307. a weight member; 3071. a positioning plate; 3072. a screw; 3073. balancing weight; 3074. a movable plate; 3075. positioning a screw cap; 3076. a water inlet; 3077. a water storage chamber; 308. a guide tube.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Example 1

The utility model provides the following technical scheme as shown in fig. 1, 2, 3 and 4: the utility model provides a tensioning device for BOPP membrane rewinding, including workstation 1, guide roll 2 is installed to the top symmetry of workstation 1, tensioning module 3 is installed to the top center department of workstation 1, tensioning module 3 is including fixing the tensioning frame 301 in workstation 1 top center department, spout 302 has been seted up to the inner wall symmetry of tensioning frame 301, the inside slip of spout 302 has slider 303, and rotate between two sliders 303 and be connected with tensioning roller 304, guide wheel 305 is installed to the top symmetry of tensioning frame 301, the last connecting rope 306 that encircles of guide wheel 305, connecting rope 306's one end is connected with slider 303, connecting rope 306's the other end is connected with counter weight 307, after passing BOPP membrane below guide roll 2 on one side of workstation 1, walk around the top of tensioning roller 304, finally under the below of passing workstation 1 opposite side guide roll 2, tensioning roller 304 plays the tensioning effect at the inside of tensioning frame 301 under counter weight 307 gravity, moreover, the steam generator is simple in structure, effectively reduce use cost.

Preferably, both ends of the tension roller 304 are rotated on the sliding block 303 through bearings, so that stable rotation of the tension roller 304 is ensured.

Preferably, a guide tube 308 is fixed to a side of the tension frame 301, and the connection rope 306 passes through the inside of the guide tube 308 to guide the connection rope 306.

Example two

Referring to fig. 2, 3 and 4, as another preferred embodiment, the difference from the first embodiment is that the weight 307 includes a positioning plate 3071 connected to the tail end of the connecting rope 306, a screw 3072 is fixed at the bottom center of the positioning plate 3071, a movable plate 3074 is sleeved on the screw 3072, a positioning nut 3075 screwed on the screw 3072 is arranged below the movable plate 3074, a plurality of balancing weights 3073 clamped on the screw 3072 are arranged between the positioning plate 3071 and the movable plate 3074, and the positioning nut 3075 is rotated to move downwards on the screw 3072, so that the distance between the positioning plate 3071 and the movable plate 3074 can be conveniently adjusted, and the coarse adjustment of the whole weight of the weight 307 can be realized by increasing or decreasing the number of the balancing weights 3073 due to the weight fixation of each balancing weight 3073, so as to meet the requirements of different tensioning forces.

Preferably, the inside of balancing weight 3073 has offered water storage chamber 3077, and the water inlet 3076 that link up water storage chamber 3077 has been seted up to the side of balancing weight 3073, has connect the closing cap soon on water inlet 3076, opens the closing cap, can pour into a certain amount of water into the inner wall of water storage chamber 3077, because the water yield adds and can freely add according to actual need to realized the accurate regulation of the whole weight of balancing weight 307, in order to satisfy the demand of different tensioning forces.

Working principle:

after passing the BOPP film below the guide roller 2 on one side of the workbench 1, the BOPP film is wound around the upper part of the tensioning roller 304, and finally, the tensioning roller 304 moves upwards in the tensioning frame 301 under the action of the gravity of the counterweight 307 below the guide roller 2 on the other side of the workbench 1, so that the BOPP film is tensioned, and the device is simple in structure and not easy to damage, and the use cost is effectively reduced.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a tensioning device for BOPP membrane rewinding, includes workstation (1), guide roll (2) are installed to the top symmetry of workstation (1), tensioning module (3), its characterized in that are installed at the top center department of workstation (1): tensioning module (3) are including fixing tensioning frame (301) in workstation (1) top center department, spout (302) have been seted up to the inner wall symmetry of tensioning frame (301), the inside slip of spout (302) has slider (303), and rotates between two sliders (303) to be connected with tensioning roller (304), leading wheel (305) are installed to the top symmetry of tensioning frame (301), encircle on leading wheel (305) and be connected rope (306), the one end and slider (303) of connecting rope (306) are connected, the other end and the counter weight piece (307) of connecting rope (306) are connected.

2. The tensioning device for rewinding BOPP film according to claim 1, wherein: the counterweight (307) comprises a locating plate (3071) connected to the tail end of the connecting rope (306), a screw rod (3072) is fixed at the center of the bottom of the locating plate (3071), a movable plate (3074) is sleeved on the screw rod (3072), a locating nut (3075) screwed on the screw rod (3072) is arranged below the movable plate (3074), and a plurality of counterweights (3073) clamped on the screw rod (3072) are arranged between the locating plate (3071) and the movable plate (3074).

3. The tensioning device for rewinding BOPP film according to claim 2, wherein: the inside of balancing weight (3073) has seted up water storage chamber (3077), water inlet (3076) that link up water storage chamber (3077) are seted up to the side of balancing weight (3073), the upper cover that has screwed of water inlet (3076).

4. The tensioning device for rewinding BOPP film according to claim 1, wherein: both ends of the tensioning roller (304) are rotated on the sliding block (303) through bearings.

5. The tensioning device for rewinding BOPP film according to claim 1, wherein: a guide tube (308) is fixed on the side edge of the tensioning frame (301), and the connecting rope (306) passes through the inside of the guide tube (308).