Tension regulating and controlling device for winding POF (Polyolefin Fiber) heat shrink film

Abstract

The utility model discloses a tensile force regulation and control device for winding a POF heat shrink film, which comprises a fixed guide seat, the inner end face of the fixed guide seat penetrates to the outside and is provided with a guide chute for guiding and two groups of material guide rollers, and the two groups of material guide rollers are rotationally clamped on the inner end face of the fixed guide seat. Transmission gears are arranged at the centers of the side end faces of the two sets of guide rollers. By arranging the adjusting device, when the tensile force strength of the POF thermal shrinkage film is adjusted and controlled, the stepping motor can be in threaded connection with the ball sliding seat through the connecting lead screw, and then the ball sliding seat is driven to compress or stretch the spring clamping ring; and therefore, the strength of the supporting elastic force of the spring clamping ring to the guide sliding seat is quickly and accurately regulated, and the adaptability of the guide sliding seat to regulation and control of the tensile force strength of the POF heat shrinkage film conveyed by the upper part of the limiting guide roller is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of POF heat shrink film equipment, in particular to a tensioning force regulating device for rolling up a POF heat shrink film. Background Art

[0002] POF heat shrink film has the characteristics of high transparency, high shrinkage rate, high toughness, high heat sealing performance, antistatic, and excellent cold resistance. In addition, it has high surface gloss, high tear strength, and uniform heat shrinkage, which is suitable for fully automatic high-speed packaging. Due to these characteristics, POF heat shrink film is widely used in the packaging of products in various industries such as food and beverages, handicrafts, electronic appliances, and mechanical parts.

[0003] For example, the utility model patent disclosed in the publication number CN218909259U discloses a POF heat shrink film tension automatic control winding device, including a fixed frame, a POF heat shrink film body and a winding roller, wherein a rotating shaft is rotatably connected in the fixed frame, and a support sleeve is rotatably connected in the fixed frame and located on the opposite side of the rotating shaft, and a connecting component is provided on the winding roller, the rotating shaft and the support sleeve for convenient removal of the POF heat shrink film body. The POF heat shrink film tension automatic control winding device, by providing a connecting component, after the winding is completed, only a connecting screw needs to be turned and a pull rod needs to be pulled, and the winding roller and the POF heat shrink film body on the outer surface move, and the POF heat shrink film body wound on the outer surface of the winding roller gradually separates from the outer surface of the winding roller after hitting the fixed frame, and in this process, only the connecting screw needs to be turned and the pull rod needs to be pulled, so that the rolled POF heat shrink film body can be conveniently removed, solving the problem of inconvenient material removal after winding.

[0004] Although the above-mentioned POF winding equipment can control the tension of the film winding to a certain extent, it is not convenient to adjust the intensity of the tension according to demand, thereby reducing the adaptability of the equipment to the winding tension regulation. Therefore, a tension regulation device for POF heat shrink film winding is urgently needed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a tension regulating device for rolling up a POF heat shrinkable film, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a tension regulating device for winding a POF heat shrink film, comprising a fixed guide seat, wherein the inner end surface of the fixed guide seat is connected to the outside and a guide slot for guiding is provided.

[0007] Material guide rollers, wherein two groups of material guide rollers are provided, and both groups of material guide rollers are rotatably clamped on the inner end surface of the fixed guide seat, transmission gears are provided at the center of the side end surfaces of the two groups of material guide rollers, and a servo motor is provided at the side end surface of the fixed guide seat facing the material guide rollers;

[0008] The adjusting device comprises two groups of adjusting devices, the two groups of adjusting devices are respectively arranged alternately at the upper part and the lower part of the fixed guide seat, and a limiting guide roller is rotatably clamped between the two groups of adjusting devices located in the same plane.

[0009] Preferably, the adjusting device includes a motor holder, a support guide seat is fixedly provided at the center of the upper end surface of the motor holder, and a guide slide is slidably clamped at the bottom of the inner end surface of the support guide seat, a spring retaining ring is fixedly installed at the center of the lower end surface of the guide slide, a stepper motor is provided at the center of the inner end surface of the motor holder, and a connecting screw is fixedly installed at the center of the upper end surface of the stepper motor, and the inner end surface of the support guide seat is threadedly connected to a ball slide through the connecting screw.

[0010] Preferably, the conveying gaps in the middle of the two groups of guide rollers are directly opposite to the guide chute, which can improve the accuracy of subsequent guiding of the POF heat shrink film.

[0011] Preferably, the two groups of guide rollers are meshedly connected via the transmission gears, which can effectively improve the stability of the two groups of guide rollers in relative rotation to transport the POF heat shrink film.

[0012] Preferably, the bottom of the spring clamp is fixedly connected to the ball slide, and the guide slide is rotatably clamped to the limiting guide roller. The two groups of guide slides can lock and limit the limiting guide roller, effectively improving the stability of the subsequent limiting guide roller in guiding the POF heat shrink film.

[0013] Preferably, the ball slide is threadably connected to the inner end surface of the support guide seat through the connecting screw rod. The connecting screw rod can be threadedly connected to the ball slide seat, thereby driving the ball slide to be lifted and lowered inside the support guide seat, and the support height of the spring clamp can be quickly and accurately adjusted.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides an adjustment device. When adjusting the tension strength of the POF heat shrink film, the stepper motor can drive the ball slide to compress or stretch the spring clamp ring through the threaded connection between the connecting screw and the ball slide, thereby quickly and accurately adjusting the strength of the elastic force of the spring clamp ring supporting the guide slide, effectively improving the adaptability of the guide slide to the tension strength adjustment of the POF heat shrink film transported on the upper part of the limiting guide roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the main body of the utility model;

[0017] Figure 2 This is a disassembled diagram of the regulating device of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the regulating device of the utility model.

[0019] In the figure: 1-limiting guide roller, 2-adjusting device, 3-transmission gear, 4-guide slide, 5-material guide roller, 6-servo motor, 7-fixed guide seat, 21-support guide seat, 22-ball slide seat, 23-motor holder, 24-stepping motor, 25-spring retaining ring, 26-guide slide seat, 27-connecting screw rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides an embodiment: a tension regulating device for winding a POF heat shrink film, comprising a fixed guide seat 7, the inner end surface of the fixed guide seat 7 is penetrated to the outside and a guide slot 4 for guiding is provided.

[0022] The guide rollers 5 are provided with two groups, and the two groups of guide rollers 5 are rotatably clamped on the inner end surface of the fixed guide seat 7, and the transmission gears 3 are provided at the center of the side end surfaces of the two groups of guide rollers 5, and the servo motor 6 is provided at the side end surface of the fixed guide seat 7 facing the guide rollers 5;

[0023] The adjusting device 2 is provided with two groups in total. The two groups of adjusting devices 2 are staggeredly arranged at the upper and lower parts of the fixed guide seat 7, and the limiting guide roller 1 is rotatably clamped between the two groups of adjusting devices 2 located in the same plane.

[0024] The adjusting device 2 includes a motor holder 23, a support guide seat 21 is fixedly arranged at the center of the upper end surface of the motor holder 23, and a guide slide 26 is slidably clamped at the bottom of the inner end surface of the support guide seat 21, a spring retaining ring 25 is fixedly installed at the center of the lower end surface of the guide slide 26, a stepper motor 24 is arranged at the center of the inner end surface of the motor holder 23, and a connecting screw 27 is fixedly installed at the center of the upper end surface of the stepper motor 24, and the inner end surface of the support guide seat 21 is threadedly connected to the ball slide 22 through the connecting screw 27.

[0025] The conveying gap in the middle of the two groups of guide rollers 5 is directly opposite to the guide chute 4, which can improve the accuracy of subsequent guiding of the POF heat shrink film.

[0026] The two groups of guide rollers 5 are meshed and connected via the transmission gear 3 , which can effectively improve the stability of the two groups of guide rollers 5 in relative rotation to transport the POF heat shrinkable film.

[0027] The bottom of the spring clamp 25 is fixedly connected to the ball slide 22, and the guide slide 26 is rotatably connected to the limiting guide roller 1. The two sets of guide slides 26 can lock and limit the limiting guide roller 1, effectively improving the stability of the subsequent limiting guide roller 1 in guiding the POF heat shrink film.

[0028] The ball slide 22 is connected to the inner end surface of the support guide seat 21 through a connecting screw 27 and a threaded sliding connection. The connecting screw 27 can be threadedly connected to the ball slide 22, thereby driving the ball slide 22 to be lifted and lowered inside the support guide seat 21, and the support height of the spring retaining ring 25 can be quickly and accurately adjusted.

[0029] Working principle: When conveying and rewinding the POF heat shrink film, the staff can start two sets of servo motors 6. At this time, the servo motors 6 can drive the guide rollers 5 to rotate. When the guide rollers 5 rotate, they can mesh with the two sets of transmission gears 3, thereby synchronously driving the upper and lower sets of guide rollers 5 to rotate in the opposite direction. The guide rollers 5 on both sides can convey the POF heat shrink film synchronously. At the same time, when conveying the POF heat shrink film, it can pass through the limit guide rollers 1 located at the upper and lower parts of the adjustment device 2. When the POF heat shrink film is subjected to external pulling force, the limit guide rollers 1 can drive the two sides through the spring clamp ring 25. The guide slide 26 moves up and down, thereby adaptively adjusting the tension of the transported POF heat shrink film, improving the safety of the POF heat shrink film transportation. If the tension of the POF heat shrink film needs to be regulated, the stepper motor 24 can drive the ball slide 22 to move up and down through the connecting screw 27, thereby driving the spring retaining ring 25 to move up and down inside the support guide 21, and then increasing or reducing the elastic force of the unit downward support of the guide slide 26, so as to facilitate the subsequent adaptive regulation of the tension of the guide slide 26 according to different types of POF heat shrink films.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension regulating device for winding a POF heat shrinkable film, comprising a fixed guide seat (7), wherein the inner end surface of the fixed guide seat (7) is connected to the outside and a guide slot (4) for guiding is provided. Features: Guide rollers (5), the guide rollers (5) being provided with two groups in total, and the two groups of guide rollers (5) are both rotatably clamped on the inner end surface of the fixed guide seat (7), a transmission gear (3) is provided at the center of the side end surfaces of the two groups of guide rollers (5), and a servo motor (6) is provided at the side end surface of the fixed guide seat (7) directly opposite to the guide rollers (5); The adjusting device (2) comprises two groups of adjusting devices (2), the two groups of adjusting devices (2) are respectively arranged alternately at the upper part and the lower part of the fixed guide seat (7), and the limiting guide roller (1) is rotatably clamped between the two groups of adjusting devices (2) located on the same plane.

2. A tension control device for rolling up a POF heat shrinkable film according to claim 1, Features: The adjusting device (2) comprises a motor holder (23), a support guide seat (21) is fixedly arranged at the center of the upper end surface of the motor holder (23), and a guide slide seat (26) is slidably engaged at the bottom of the inner end surface of the support guide seat (21), a spring retaining ring (25) is fixedly installed at the center of the lower end surface of the guide slide seat (26), a stepping motor (24) is arranged at the center of the inner end surface of the motor holder (23), and a connecting screw (27) is fixedly installed at the center of the upper end surface of the stepping motor (24), and the inner end surface of the support guide seat (21) is threadedly connected to a ball slide seat (22) via the connecting screw (27).

3. A tension control device for rolling up a POF heat shrinkable film according to claim 2, Features: The conveying gaps in the middle of the two groups of guide rollers (5) are directly opposite to the guide chute (4).

4. A tension control device for rolling up a POF heat shrinkable film according to claim 2, Features: The two groups of guide rollers (5) are meshedly connected via the transmission gear (3).

5. A tension control device for rolling up a POF heat shrinkable film according to claim 2, Features: The bottom of the spring clamp ring (25) is fixedly connected to the ball slide seat (22), and the guide slide seat (26) is rotationally clamped to the limiting guide roller (1).

6. A tension control device for rolling up a POF heat shrinkable film according to claim 2, Features: The ball sliding seat (22) is threadedly slidably connected to the inner end surface of the support guide seat (21) via the connecting screw rod (27).

Images