Tension degree adjusting mechanism for poe film packaging material

Abstract

The utility model discloses a poe film packaging material tension degree adjusting mechanism, which relates to the technical field of tension degree adjustment and comprises a tensioning machine, a group of corresponding traction components are rotatably connected to two ends in the tensioning machine respectively, a plurality of lifting side frames are fixedly connected to two sides in the tensioning machine respectively, and the lifting side frames are fixedly connected to two ends of the tensioning machine respectively. The tensioning device comprises a tensioning machine, a plurality of tensioning adjusting plates are arranged on the tensioning machine, the two sides of the interior of the tensioning machine are connected with tensioning adjusting frames in a sliding mode through lifting side frames, the centers of the interiors of the tensioning adjusting frames are connected with tensioning shafts in a rotating mode, and the tensioning shafts are located in the center of the interior of the tensioning machine. The tension spring is extruded, the tension force of the tension spring is actively regulated and controlled by changing the compression stroke of the tension spring, then the tension force of the tension spring is flexibly regulated and controlled, it is ensured that the packaging film is kept in the optimal tension state in the conveying process, and meanwhile material loss and equipment faults caused by improper tension are reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of tension adjustment, and specifically relates to a tension adjustment mechanism for POE film packaging materials. Background Technique

[0002] The tension adjustment mechanism for POE film packaging materials plays a crucial role in the packaging process. By precisely controlling the tension of the packaging film, it ensures the stability and efficiency of the packaging process, prevents the packaging film from slipping on the conveyor belt and reduces resistance, ensuring its stability during transportation. At the same time, appropriate tension can also ensure that the packaging film covers the product surface smoothly and without wrinkles, improving the overall aesthetics and sealing performance of the packaging, increasing production efficiency and convenience, and reducing the trouble caused by frequently changing pulley specifications to adapt to different production volumes. Inappropriate tension may cause the packaging film to break or wrinkle, resulting in material waste, and through precise adjustment, such losses can be significantly reduced.

[0003] According to the search, the Chinese patent document, publication number: CN 221133608 U, discloses a spinning tensioning mechanism. The utility model discloses a spinning tensioning mechanism, including a support platform. The center position of the upper surface of the support platform is fixedly connected with a support plate. The outer surface of the support plate is fixedly connected with a cross plate. One outer surface of the support plate away from the cross plate is fixedly connected with two rotating wheels, and the two rotating wheels are symmetrically arranged. The surface of the rotating wheel is provided with a slot. The rotating wheel is slidably connected with the spinning line. The center position of one outer surface of the support plate away from the cross plate is fixedly connected with a spinning line tensioning structure. By setting a chain and a sprocket, when the spinning line passes through the surfaces of the rotating wheel and the tensioning wheel, rotating the sprocket, and at the same time the sprocket drives the chain to move, when the spinning line is in a "tight" state, opening the tensioning switch to fix the sprocket can more conveniently make the spinning line in a tensioned state.

[0004] Since the above device cannot actively regulate the static tension of the spring, when the thickness or material of the packaging film changes, the fixed tension may not be able to meet the working requirements of packaging films with different thicknesses and materials, thereby having a certain impact on the stability and quality of the packaging. In view of this, we provide a tension adjustment mechanism for POE film packaging materials. Content of the Utility Model

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a tension adjustment mechanism for POE film packaging materials.

[0006] To achieve the above object, the present utility model provides the following technical solution: A tension adjustment mechanism for a poe film packaging material, including a tensioning machine. At both ends inside the tensioning machine, a set of corresponding traction components are rotatably connected. On both sides inside the tensioning machine, a plurality of lifting side frames are fixedly connected. On both sides inside the tensioning machine, a tension adjustment frame is slidably connected through the lifting side frames. Inside the center of the tension adjustment frame, a tension shaft is rotatably connected. The tension shaft is located at the center inside the tensioning machine, and the tension shaft is rotatably connected to the center inside the tensioning machine through the tension adjustment frame. At both ends inside the tensioning machine, a plurality of limiting shaft cylinders are fixedly connected, and a spring limiting shaft is slidably connected to the center inside the limiting shaft cylinder;

[0007] At one end inside the tensioning machine, a first motor is fixedly connected. At the center inside the tensioning machine, a double-threaded lead screw is rotatably connected through the output end of the first motor. At the lower end inside the tensioning machine, a set of corresponding limiting slide rails are fixedly connected at the same time, and the limiting slide rails are located on both sides outside the double-threaded lead screw. At both ends of the outer wall of the double-threaded lead screw, a plurality of tension adjustment plates and compression bottom plates are respectively rotatably connected, and the tension adjustment plates and compression bottom plates are slidably connected to the lower end inside the tensioning machine through the limiting slide rails.

[0008] In the above, one outer wall of the lifting side frame penetrates and is connected to one outer wall of the tension adjustment frame, and one side inside the tension adjustment frame is slidably connected to one outer wall of the lifting side frame. One end of the outer wall of the spring limiting shaft penetrates one side of the outer wall of the tension adjustment plate and the center of the outer wall of the limiting shaft cylinder at the same time, and one end of the outer wall of the spring limiting shaft is slidably connected to one side inside the tension adjustment plate and the center inside the limiting shaft cylinder.

[0009] In the above, a tension spring is sleeved on the outer wall of the spring limiting shaft, and one end of the outer wall of the tension spring is fixedly connected to one side of the outer wall of the tension adjustment plate. One end of the outer wall of the spring limiting shaft away from the limiting shaft cylinder is fixedly connected to one side of the outer wall of the compression bottom plate.

[0010] In the above, at both ends inside the compression bottom plate, tension connecting rods are respectively rotatably connected through rotating shafts, and the top inside the tension connecting rods is rotatably connected to one side inside the tension adjustment frame.

[0011] In the above, one end of the outer wall of the limiting slide rail penetrates one side of the outer walls of the compression bottom plate and the tension adjustment plate at the same time, and one side inside the compression bottom plate and the tension adjustment plate is slidably connected to one end of the outer wall of the limiting slide rail.

[0012] In the above, one end of the outer wall of the double-threaded lead screw penetrates and is connected to the center inside the compression bottom plate, and one end of the outer wall of the double-threaded lead screw is located at the center inside the compression bottom plate. One end of the outer wall of the double-threaded lead screw penetrates the center inside the tension adjustment plate, and the double-threaded lead screw is rotatably connected to the center inside the tension adjustment plate through the external thread on the outer wall.

[0013] As described above, one end of the double-threaded lead screw penetrates through one end of the inside of the tensioning machine, and one end of the outer wall of the double-threaded lead screw penetrates through one end of the inside of the tensioning machine and is fixedly connected to the outer wall of the output end of the first motor.

[0014] Compared with the prior art, the tension adjustment mechanism for the POE film packaging material has the following beneficial effects:

[0015] First, the present invention passes the packaging film through one of the traction components, and makes the packaging film pass through the top of the tensioning shaft and through the center of the other traction component. The tension spring pushes the tensioning link through the spring limiting shaft and the compression bottom plate, so that multiple tensioning links, tension springs and lifting side frames cooperate with each other. Under the combined action of multiple tensioning links, tension springs and lifting side frames, the tensioning adjustment frame and the tensioning shaft are pushed to lift the packaging film, so that the packaging film can maintain a stable tension during the conveying process.

[0016] Second, when it is necessary to adjust the tension of the tension spring according to the subsequent conditions of different packaging films in the present invention, the first motor output end drives the double-threaded lead screw to rotate. As the double-threaded lead screw rotates, the double-threaded lead screw cooperates with the limiting slide rail through the external thread on the outer wall, and at the same time pushes multiple tensioning adjustment plates to move towards the center of the inside of the tensioning machine along the limiting slide rail. When the tensioning adjustment plate moves, it squeezes the tension spring. By changing the compression stroke of the tension spring, the tension of the tension spring is actively regulated, and then the tension of the tension spring is flexibly regulated to ensure that the packaging film maintains the best tension state during the conveying process. At the same time, material loss and equipment failures caused by improper tension are minimized as much as possible.

[0017] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 3 is a partial cut-away enlarged three-dimensional structural diagram of the limit shaft cylinder, tensioning adjustment plate and spring limiting shaft of the present invention;

[0021] Figure 4 is a partial cut-away enlarged three-dimensional structural diagram of the compression bottom plate, tensioning adjustment plate and double-threaded lead screw of the present invention;

[0022] Figure 5This is a partial three-dimensional structural schematic diagram of the compression bottom plate and the tension adjustment plate of the present utility model;

[0023] Figure 6 This is a partial disassembled three-dimensional structural schematic diagram of the lifting side frame and the tension adjustment frame of the present utility model.

[0024] In the figure: 1. Tensioning machine; 101. Traction assembly; 2. Lifting side frame; 201. Tension adjustment frame; 202. Tensioning shaft; 203. Limit shaft cylinder; 204. Spring limit shaft; 205. Tension spring; 206. Tension connecting rod; 3. First motor; 301. Double-threaded lead screw; 302. Limit slide rail; 303. Tension adjustment plate; 304. Compression bottom plate. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1-6 shown, the present utility model provides a technical solution: a tension adjustment mechanism for a poe film packaging material, including a tensioning machine 1. A set of corresponding traction assemblies 101 are rotatably connected to both ends inside the tensioning machine 1, and a plurality of lifting side frames 2 are fixedly connected to both sides inside the tensioning machine 1. A tension adjustment frame 201 is slidably connected to both sides inside the tensioning machine 1 through the lifting side frames 2, and a tensioning shaft 202 is rotatably connected to the center inside the tension adjustment frame 201. The tensioning shaft 202 is located at the center inside the tensioning machine 1, and the tensioning shaft 202 is rotatably connected to the center inside the tensioning machine 1 through the tension adjustment frame 201. A plurality of limit shaft cylinders 203 are fixedly connected to both ends inside the tensioning machine 1, and a spring limit shaft 204 is slidably connected to the center inside the limit shaft cylinder 203;

[0027] A first motor 3 is fixedly connected to one end inside the tensioning machine 1, and a double-threaded lead screw 301 is rotatably connected to the output end of the first motor 3 at the center inside the tensioning machine 1. A set of corresponding limit slide rails 302 are fixedly connected to the lower end inside the tensioning machine 1, and the limit slide rails 302 are located on both sides outside the double-threaded lead screw 301. Both ends of the outer wall of the double-threaded lead screw 301 are rotatably connected to a plurality of tension adjustment plates 303 and compression bottom plates 304, and the tension adjustment plates 303 and the compression bottom plates 304 are slidably connected to the lower end inside the tensioning machine 1 through the limit slide rails 302.

[0028] Pass the packaging film through one of the traction components 101, and make the packaging film pass over the top of the tensioning shaft 202 and pass through the center of the other traction component 101. The tensioning spring 205 pushes the tensioning link 206 through the spring limiting shaft 204 and the compression bottom plate 304, so that multiple tensioning links 206, tensioning springs 205 and the lifting side frame 2 cooperate with each other. Under the combined action of multiple tensioning links 206, tensioning springs 205 and the lifting side frame 2, the tensioning adjustment frame 201 and the tensioning shaft 202 are pushed to lift the packaging film, so that the packaging film can maintain a stable tension during the conveying process. When it is necessary to adjust the tensioning force of the tensioning spring 205 according to the subsequent requirements of different packaging films, the output end of the first motor 3 drives the double-threaded lead screw 301 to rotate. As the double-threaded lead screw 301 rotates, the double-threaded lead screw 301 cooperates with the limit slide rail 302 through the external thread on the outer wall, and at the same time pushes multiple tensioning adjustment plates 303 to move towards the center of the inside of the tensioning machine 1 along the limit slide rail 302. When the tensioning adjustment plate 303 moves, it squeezes the tensioning spring 205. By changing the compression stroke of the tensioning spring 205, the tensioning force of the tensioning spring 205 is actively regulated, and then the tensioning force of the tensioning spring 205 is flexibly regulated to ensure that the packaging film maintains the best tension state during the conveying process. At the same time, as much as possible, reduce the material loss and equipment failures caused by improper tension.

[0029] As Figures 1-6 shown, one side outer wall of the lifting side frame 2 is connected through the one side outer wall of the tensioning adjustment frame 201, and one side inside the tensioning adjustment frame 201 is slidably connected to one side outer wall of the lifting side frame 2. Through the connection of one side outer wall of the lifting side frame 2 and one side inside the tensioning adjustment frame 201, when the tensioning adjustment frame 201 moves, it can only move vertically along the outer wall of the lifting side frame 2.

[0030] One end outer wall of the spring limiting shaft 204 passes through one side outer wall of the tensioning adjustment plate 303 and the center of the outer wall of the limit shaft cylinder 203 at the same time, and one end outer wall of the spring limiting shaft 204 is slidably connected to one side inside the tensioning adjustment plate 303 and the center of the inside of the limit shaft cylinder 203. Through the connection of one end outer wall of the spring limiting shaft 204 with one side inside the tensioning adjustment plate 303 and the center of the inside of the limit shaft cylinder 203 at the same time, one end outer wall of the limit shaft cylinder 203 can slide inside the center of the limit shaft cylinder 203 and one side inside the tensioning adjustment plate 303.

[0031] The outer wall of the spring limiting shaft 204 is sleeved with a tensioning spring 205, and one end outer wall of the tensioning spring 205 is fixedly connected to one side outer wall of the tensioning adjustment plate 303. The tensioning spring 205 is sleeved on the outer wall of the spring limiting shaft 204, and one end outer wall of the tensioning spring 205 is fixed to one side outer wall of the tensioning adjustment plate 303, so that the tensioning spring 205 always provides a thrust for the spring limiting shaft 204.

[0032] One end of the outer wall of the spring limiting shaft 204 away from the limiting shaft cylinder 203 is fixedly connected to one side of the outer wall of the compression bottom plate 304, so that multiple spring limiting shafts 204 at one end inside the tensioner 1 are simultaneously arranged, facilitating the compression bottom plate 304 to drive multiple spring limiting shafts 204 at one end inside the tensioner 1 to compress the tension spring 205 simultaneously.

[0033] At both ends inside the compression bottom plate 304, tension connecting rods 206 are respectively rotatably connected through rotating shafts, and the top end inside the tension connecting rod 206 is rotatably connected to one side inside the tension adjusting frame 201. The tension connecting rod 206 is used to connect one end inside the compression bottom plate 304 and one side of the bottom of the tension adjusting frame 201. Cooperating with the lifting side frame 2, under the action of the tension spring 205, the tension shaft 202 can be pushed to tension the packaging film.

[0034] As Figures 1-5 As shown, one end of the outer wall of the limit slide rail 302 penetrates through one side of the outer walls of the compression bottom plate 304 and the tension adjusting plate 303 simultaneously, and one side inside the compression bottom plate 304 and the tension adjusting plate 303 is slidably connected to one end of the outer wall of the limit slide rail 302. By penetrating one end of the outer wall of the limit slide rail 302 through one side inside the tension adjusting plate 303 and the compression bottom plate 304, the movement trajectories of the tension adjusting plate 303 and the compression bottom plate 304 are restricted, so that the tension adjusting plate 303 and the compression bottom plate 304 can only move along the outer wall of the limit slide rail 302.

[0035] One end of the outer wall of the double-threaded lead screw 301 penetrates through the center inside the compression bottom plate 304, and one end of the outer wall of the double-threaded lead screw 301 is located at the center inside the compression bottom plate 304. The double-threaded lead screw 301 directly penetrates through the center inside the compression bottom plate 304. When the compression bottom plate 304 moves, it is not restricted by the thread on the outer wall of the double-threaded lead screw 301.

[0036] One end of the outer wall of the double-threaded lead screw 301 penetrates through the center inside the tension adjusting plate 303, and the double-threaded lead screw 301 is rotatably connected to the center inside the tension adjusting plate 303 through the thread on its outer wall. By penetrating the double-threaded lead screw 301 through the center inside the tension adjusting plate 303, when the double-threaded lead screw 301 rotates, it cooperates with the limit slide rail 302 through the thread on its outer wall to push multiple tension adjusting plates 303 at both ends of its outer wall to move towards the center or both ends inside the tensioner 1 simultaneously.

[0037] One end of the outer wall of the double-threaded lead screw 301 penetrates through one end inside the tensioner 1, and one end of the outer wall of the double-threaded lead screw 301 penetrates through one end inside the tensioner 1 and is fixedly connected to the outer wall of the output end of the first motor 3, so that the first motor 3 can drive the double-threaded lead screw 301 to rotate at the center inside the tensioner 1 through the rotation of the output end.

[0038] Working principle: One outer wall of the lifting side frame 2 is connected through the inside of one side of the tensioning and adjusting frame 201. When the tensioning and adjusting frame 201 moves, it can only move vertically along the outer wall of the lifting side frame 2. One outer wall of one end of the spring limiting shaft 204 is connected through the inside of one side of the tensioning and adjusting plate 303 and the center of the inside of the limiting shaft cylinder 203 at the same time, so that one end of the outer wall of the limiting shaft cylinder 203 can slide through the center of the inside of the limiting shaft cylinder 203 and the inside of one side of the tensioning and adjusting plate 303. The tensioning spring 205 is sleeved on the outer wall of the spring limiting shaft 204, and one outer wall of one end of the tensioning spring 205 is fixed on one outer wall of the tensioning and adjusting plate 303, so that the tensioning spring 205 always provides a thrust force for the spring limiting shaft 204. Multiple spring limiting shafts 204 at one end inside the tensioning machine 1 are compressed simultaneously, so that the compression bottom plate 304 can drive multiple spring limiting shafts 204 at one end inside the tensioning machine 1 to compress the tensioning spring 205 at the same time. One end inside the compression bottom plate 304 is connected to one side of the bottom of the tensioning and adjusting frame 201 through the tensioning connecting rod 206. Cooperating with the lifting side frame 2, under the action of the tensioning spring 205, the tensioning shaft 202 can be pushed to tension the packaging film. One outer wall of one end of the limiting slide rail 302 penetrates through the inside of one side of the tensioning and adjusting plate 303 and the compression bottom plate 304 at the same time to limit the movement tracks of the tensioning and adjusting plate 303 and the compression bottom plate 304, so that the tensioning and adjusting plate 303 and the compression bottom plate 304 can only move along the outer wall of the limiting slide rail 302. The double-threaded lead screw 301 directly penetrates through the center of the inside of the compression bottom plate 304. When the compression bottom plate 304 moves, it is not restricted by the thread on the outer wall of the double-threaded lead screw 301. The double-threaded lead screw 301 penetrates through the center of the inside of the tensioning and adjusting plate 303. When the double-threaded lead screw 301 rotates, through the cooperation of the thread on its outer wall with the limiting slide rail 302, multiple tensioning and adjusting plates 303 at both ends of its outer wall are pushed to move towards the center or both ends inside the tensioning machine 1 at the same time. One outer wall of one end of the double-threaded lead screw 301 is fixed to the output end of the first motor 3, so that the first motor 3 can drive the double-threaded lead screw 301 to rotate through the rotation of the output end inside the center of the tensioning machine 1.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension adjustment mechanism for a POE film packaging material, comprising a tensioner (1), characterized in that: A group of corresponding traction components (101) are rotatably connected at both ends of the tensioner (1), and a plurality of lifting side frames (2) are fixedly connected at both sides of the tensioner (1). A tensioning adjustment frame (201) is slidably connected at both sides of the tensioner (1) through the lifting side frames (2), and a tensioning shaft (202) is rotatably connected to the center of the tensioning adjustment frame (201). The tensioning shaft (202) is located at the center of the tensioner (1), and the tensioning shaft (202) is rotatably connected to the center of the tensioner (1) through the tensioning adjustment frame (201). A plurality of limiting shaft cylinders (203) are fixedly connected at both ends of the tensioner (1), and a spring limiting shaft (204) is slidably connected to the center of the limiting shaft cylinder (203). A first motor (3) is fixedly connected to one end of the tensioner (1), and a double-threaded screw (301) is rotatably connected to the center of the tensioner (1) through the output end of the first motor (3). A group of corresponding limit slide rails (302) are fixedly connected to the lower end of the tensioner (1), and the limit slide rails (302) are located on both sides of the outside of the double-threaded screw (301). A plurality of tension adjustment plates (303) and a compression bottom plate (304) are rotatably connected to the two ends of the outer wall of the double-threaded screw (301), and the tension adjustment plates (303) and the compression bottom plate (304) are both slidably connected to the lower end of the tensioner (1) through the limit slide rails (302).

2. A tension adjustment mechanism for a poe film packaging material according to claim 1, characterized in that: The outer wall of one side of the lifting side frame (2) is connected to the outer wall of one side of the tensioning adjustment frame (201), and the inner side of the tensioning adjustment frame (201) is connected to the outer wall of one side of the lifting side frame (2) in a sliding manner. The outer wall of one end of the spring limiting shaft (204) simultaneously passes through one side of the outer wall of the tensioning adjustment plate (303) and the center of the outer wall of the limiting shaft cylinder (203), and one end of the outer wall of the spring limiting shaft (204) is connected to the inner side of the tensioning adjustment plate (303) and the inner center of the limiting shaft cylinder (203) in a sliding manner.

3. A tension adjustment mechanism for a poe film packaging material according to claim 2, characterized in that: The outer wall of the spring limiting shaft (204) is sleeved with a tensioning spring (205), and the outer wall of one end of the tensioning spring (205) is fixedly connected to the outer wall of one side of the tensioning adjustment plate (303), and the outer wall of one end of the spring limiting shaft (204) away from the limiting shaft cylinder (203) is fixedly connected to the outer wall of one side of the compression bottom plate (304).

4. A tension adjustment mechanism for a poe film packaging material according to claim 3, characterized in that: The two ends of the compression bottom plate (304) are rotatably connected to tensioning connecting rods (206) via rotating shafts, and the top end of the tensioning connecting rod (206) is rotatably connected to one side of the tensioning adjustment frame (201).

5. The tension adjustment mechanism of a poe film packaging material according to claim 1, characterized in that: One end of the outer wall of the limiting slide rail (302) simultaneously penetrates one side of the outer wall of the compression base plate (304) and the tension adjustment plate (303), and one side of the inner part of the compression base plate (304) and the tension adjustment plate (303) are both slidably connected to one end of the outer wall of the limiting slide rail (302).

6. A tension adjustment mechanism for PEO film packaging material according to claim 5, characterized in that: The outer wall of one end of the double-threaded screw rod (301) is connected to the inner center of the compression base plate (304), and one end of the outer wall of the double-threaded screw rod (301) is located at the inner center of the compression base plate (304). The outer wall of one end of the double-threaded screw rod (301) passes through the inner center of the tension adjustment plate (303), and the double-threaded screw rod (301) is rotatably connected to the inner center of the tension adjustment plate (303) through the outer wall thread.

7. A tension adjustment mechanism for PEO film packaging material according to claim 6, characterized in that: The outer wall of one end of the double-threaded screw rod (301) passes through one end inside the tensioner (1), and the outer wall of one end of the double-threaded screw rod (301) passes through one end inside the tensioner (1) and is fixedly connected to the outer wall of the output end of the first motor (3).

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