Mechanical tension balance link mechanism for film winders

Abstract

This utility model relates to the field of film winding machines, and more particularly to a mechanical tension balancing linkage mechanism for film winding machines. It includes a plate body, with two fixed rollers mounted on one side of the plate body. A swing arm is rotatably connected to the side of the plate body near the fixed rollers, and a floating roller is mounted on the movable end of the swing arm. An adjustment structure is provided on the surface of the plate body corresponding to the position of the swing arm. The adjustment structure includes a groove formed on the plate body. A sliding rod is fixedly connected to the side of the swing arm near the plate body, and the sliding rod is slidably connected to the inner wall of the groove. A support plate is fixedly connected to the side of the plate body away from the swing arm, and a support rod is slidably connected to the inner wall of the support plate. A sliding frame is fixedly connected to the lower end of the support rod. The mechanical tension balancing linkage mechanism for film winding machines provided by this utility model has the advantages of allowing convenient replacement of springs in the tension balancing linkage structure, reducing downtime, and improving the efficiency of maintenance operations.

Description

Technical Field

[0001] This utility model relates to the field of film winding machines, and more particularly to a mechanical tension balance linkage mechanism for film winding machines. Background Technology

[0002] A film winding machine is a mechanical device used to uniformly wind film material into a roll. A mechanical tension balance linkage mechanism controls the tension of the film to keep it stable and avoids uneven tension of the roll. Floating rollers, swing arms, and spring systems are typical mechanical tension balance linkage mechanisms.

[0003] Existing technologies, such as the utility model patent with publication number CN208932672U, disclose a device for controlling film tension. This patent employs a balancing box and a winding device. The balancing box includes two baffles and at least three balancing frames. Two balancing frames are fixed to the inner walls of the upper and lower ends of one of the baffles via flanges. Another balancing frame is fixed to the inner wall of another baffle via a flange and is positioned between the two balancing frames. Each balancing frame includes a pressure roller and two balancing tubes. The winding device is installed on the outside of one of the baffles. The structure is simple and reduces the possibility of film deformation caused by tension changes during film winding.

[0004] The inventors discovered the following problems in their daily work when using the tension balance linkage mechanism: the springs need to be replaced after a certain period of use, the disassembly and assembly of the springs in the spring system is cumbersome, resulting in long downtime of the film winding machine and low efficiency of maintenance work. Utility Model Content

[0005] The purpose of this invention is to solve the shortcomings of the existing technology, such as low work efficiency and long downtime when replacing springs.

[0006] To solve the above-mentioned technical problems, this utility model provides a mechanical tension balancing linkage mechanism for a film winding machine, comprising: a plate body, two fixed rollers mounted on one side of the plate body, a swing arm rotatably connected to the side of the plate body near the fixed rollers, a floating roller mounted on the movable end of the swing arm, an adjustment structure provided on the surface of the plate body corresponding to the position of the swing arm, the adjustment structure including a slide groove, the slide groove being formed on the plate body, a slide rod fixedly connected to the side of the swing arm near the plate body, the slide rod being slidably connected to the inner wall of the slide groove, and a support fixedly connected to the side of the plate body away from the swing arm. A support plate is provided, with a support rod slidably connected to its inner wall. A sliding frame is fixedly connected to the lower end of the support rod, and the inner wall of the sliding frame is slidably connected to the sliding rod. Mounting frames are fixedly connected to the surfaces of both the support rod and the support plate. A rotating shaft is fixedly connected to the side of each mounting frame that is far apart from each other. A baffle is rotatably connected to the arc surface of the rotating shaft. A coil spring is fitted onto the arc surface of the rotating shaft, and both ends of the coil spring are fixedly connected to the rotating shaft and the baffle, respectively. Mounting blocks are slidably connected to the inner walls of both mounting frames, and springs are fixedly connected to the side of each mounting frame that is close to each other.

[0007] The effect achieved by the above components is to make the springs in the tension balance linkage structure easy to replace, reduce downtime, and improve the efficiency of maintenance work.

[0008] Preferably, a round rod is fixedly connected to the upper surface of the sliding frame, and the arc surface of the round rod is slidably connected to the support plate.

[0009] The effect achieved by the above components is to further limit the sliding frame by using the round rod, making the sliding frame more stable when it moves.

[0010] Preferably, a plurality of protrusions are fixedly connected to the surface of the baffle, and the plurality of protrusions are evenly distributed on the baffle.

[0011] The effect achieved by the above components is to increase the friction on the surface of the baffle by the protrusions, making it easier for the user to rotate the baffle.

[0012] Preferably, the spring is a high-carbon steel spring.

[0013] The effect achieved by the above components is that the spring is a high-carbon steel spring, which has the advantages of high elastic modulus and low cost.

[0014] Preferably, the arc surface of the floating roller is provided with an auxiliary structure, the auxiliary structure including two positioning rings, the positioning rings being slidably connected to the floating roller, and two auxiliary plates being fixedly connected to the side of the two positioning rings that are far apart from each other. The surface of the auxiliary plate is threaded with a screw, one end of the screw is rotatably connected to a clamping plate, and the side of the clamping plate near the auxiliary plate is fixedly connected to an auxiliary rod, the arc surface of the auxiliary rod being slidably connected to the auxiliary plate.

[0015] The above components achieve the following effects: the operating auxiliary rod uses a clamp to fix the positioning ring on the floating roller, and the two positioning rings limit the two sides of the film to prevent the film from shifting during movement. This is suitable for limiting films of various widths.

[0016] Preferably, the end of the screw away from the clamping plate has a plurality of anti-slip grooves, and the plurality of anti-slip grooves are evenly distributed on the screw.

[0017] The effect achieved by the above components is to increase the friction at the operating end of the screw through the anti-slip texture, making it easier for the user to rotate the screw.

[0018] Preferably, an anti-slip pad, which is a rubber pad, is fixedly connected to the side of the clamp away from the screw.

[0019] The effect achieved by the above components is to increase the friction on the surface of the clamping plate through the anti-slip pad, thereby improving the limiting effect of the clamping plate.

[0020] Compared with related technologies, the mechanical tension balance linkage mechanism of the film winding machine provided by this utility model has the following advantages:

[0021] This utility model provides a mechanical tension balancing linkage mechanism for a film winding machine. By setting an adjustment structure, when the film winding tension changes and the swing arm rotates, the sliding rod and sliding frame transmit the force to the support rod. The support rod and support plate then transmit the force to the springs on the two mounting frames. The tension is balanced by the elastic force of the springs. By operating the baffle of the mounting frame, the springs and mounting blocks can be easily disassembled and assembled with respect to the mounting frame. When the springs need to be replaced after a certain period of use, downtime can be greatly reduced, the efficiency of maintenance work can be improved, and the operation is simple and convenient.

[0022] By setting up an auxiliary structure and operating an auxiliary rod, the positioning ring is fixed on the floating roller using a clamping plate. The two positioning rings limit the two sides of the film to prevent the film from shifting during movement. This method is suitable for limiting films of various widths. Attached Figure Description

[0023] Figure 1 A schematic diagram of the mechanical tension balance linkage mechanism of the film winding machine provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structural schematic of the adjustment structure.

[0025] Figure 3 for Figure 1 A partial structural diagram of the adjustment structure shown;

[0026] Figure 4 for Figure 1The diagram shows the disassembled structure of the adjustment mechanism.

[0027] Figure 5 for Figure 1 The diagram shows the structure of the auxiliary structure.

[0028] The following are the labeling elements in the diagram: 1. Plate body; 2. Fixed roller; 3. Swing arm; 4. Floating roller; 5. Adjustment structure; 501. Slide groove; 502. Slide rod; 503. Support plate; 504. Support rod; 505. Slide frame; 506. Round rod; 507. Mounting frame; 508. Rotating shaft; 509. Baffle; 510. Coil spring; 511. Protrusion; 512. Mounting block; 513. Spring; 6. Auxiliary structure; 61. Positioning ring; 62. Auxiliary plate; 63. Screw; 64. Clamping plate; 65. Auxiliary rod; 66. Anti-slip pad. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figures 1 to 5 The mechanical tension balance linkage mechanism of the film winding machine provided in this embodiment includes: a plate 1, two fixed rollers 2 are installed on one side of the plate 1, a swing arm 3 is rotatably connected to the side of the plate 1 near the fixed rollers 2, a floating roller 4 is installed at the movable end of the swing arm 3, an adjustment structure 5 is provided on the surface of the plate 1 corresponding to the position of the swing arm 3, and an auxiliary structure 6 is provided on the arc surface of the floating roller 4.

[0032] In the embodiments of this utility model, please refer to Figures 1 to 4The adjusting structure 5 includes a slide groove 501, which is formed on the plate 1. A slide rod 502 is fixedly connected to the side of the swing arm 3 near the plate 1. The slide rod 502 is slidably connected to the inner wall of the slide groove 501. A support plate 503 is fixedly connected to the side of the plate 1 away from the swing arm 3. A support rod 504 is slidably connected to the inner wall of the support plate 503. A slide frame 505 is fixedly connected to the lower end of the support rod 504. The inner wall of the slide frame 505 is slidably connected to the slide rod 502. Mounting frames 507 are fixedly connected to the surfaces of both the support rod 504 and the support plate 503. A rotating shaft 508 is fixedly connected to the side of each mounting frame 507 away from each other. A baffle 509 is rotatably connected to the arc surface of the rotating shaft 508. A coil spring 510 is sleeved on the arc surface of the rotating shaft 508. The two ends of the coil spring 510 are fixedly connected to the rotating shaft 508 and the baffle 509, respectively. The inner walls of the slide frame 505 are slidably connected with mounting blocks 512. Two mounting frames 507 are fixedly connected to each other on one side, and springs 513 are fixedly connected to each other. This allows the springs 513 in the tension balance linkage structure to be easily moved, reducing downtime and improving the efficiency of maintenance work. A round rod 506 is fixedly connected to the upper surface of the slide frame 505. The arc surface of the round rod 506 is slidably connected to the support plate 503. The round rod 506 is used to further limit the slide frame 505, making the slide frame 505 more stable when moving. Several protrusions 511 are fixedly connected to the surface of the baffle 509. The protrusions 511 are evenly distributed on the baffle 509. The protrusions 511 increase the friction on the surface of the baffle 509, making it easier for the user to rotate the baffle 509. The springs 513 are high carbon steel springs 513, which have the advantages of high elastic modulus and low cost.

[0033] In the embodiments of this utility model, please refer to Figure 1 and Figure 5 The auxiliary structure 6 includes two positioning rings 61, which are slidably connected to the floating roller 4. Two auxiliary plates 62 are fixedly connected to the sides of the two positioning rings 61 that are furthest from each other. A screw 63 is threaded onto the surface of each auxiliary plate 62. A clamping plate 64 is rotatably connected to one end of each screw 63. An auxiliary rod 65 is fixedly connected to the side of the clamping plate 64 closest to the auxiliary plate 62. The arc surface of the auxiliary rod 65 is slidably connected to the auxiliary plate 62. By operating the auxiliary rod 65, the clamping plate 64 fixes the positioning rings 61 onto the floating roller 4. The two positioning rings 61... 1. Limits both sides of the film to prevent it from shifting during movement. It is suitable for limiting films of various widths. The end of the screw 63 away from the clamping plate 64 is provided with several anti-slip patterns. The anti-slip patterns are evenly distributed on the screw 63. The anti-slip patterns increase the friction of the operating end of the screw 63, making it easier for the user to rotate the screw 63. The side of the clamping plate 64 away from the screw 63 is fixedly connected to an anti-slip pad 66. The anti-slip pad 66 is a rubber pad. The anti-slip pad 66 increases the friction of the surface of the clamping plate 64 and improves the limiting effect of the clamping plate 64.

[0034] The working principle of the mechanical tension balance linkage mechanism of the film winding machine provided by this utility model is as follows: By setting the adjustment structure 5, the swing arm 3 rotates, driving the slide rod 502 to move. During the movement of the slide rod 502 along the inner wall of the slide groove 501, the lateral movement of the slide rod 502 is offset by the inner wall area of ​​the slide frame 505. The slide rod 502 drives the slide frame 505 to move longitudinally, and the slide frame 505 drives the support rod 504 to move longitudinally. During the longitudinal movement of the support rod 504 along the support plate 503, the support plate 503 and the support rod 504 respectively drive the two mounting frames 507 to move away from or towards each other. The mounting frames 507 then drive the mounting blocks 512 to move, causing the spring 513 between the two mounting blocks 512 to compress or stretch. When the spring 513 needs to be replaced after a certain period of use, first... Rotate the baffle 509 on the mounting frame 507. The baffle 509 rotates along the arc surface of the rotating shaft 508. The coil spring 510 gives the baffle 509 a torsional force, turning the baffle 509 away from the opening area of ​​the mounting frame 507. Then, move the mounting block 512 out of the mounting frame 507. Take a new spring 513 with mounting blocks 512 at both ends and move the mounting blocks 512 into the mounting frame 507. Release the baffle 509. The baffle 509 returns to its original position under the torsional force of the coil spring 510, blocking the mounting block 512 in the mounting frame 507. The round rod 506 further limits the sliding frame 505, making the sliding frame 505 more stable when moving. The protrusion 511 increases the friction on the surface of the baffle 509, making it easier for the user to rotate the baffle 509. The spring 513 is a high carbon steel spring 513, which has the advantages of high elastic modulus and low cost.

[0035] By setting the auxiliary structure 6, according to the width of the film and the winding path, the two positioning rings 61 are moved to the appropriate position along the arc surface of the floating roller 4, so that the two positioning rings 61 are located on both sides of the film. Then, the two screws 63 on the positioning rings 61 are rotated. The screws 63 move along the auxiliary plate 62 towards the floating roller 4 by means of the thread. The screws 63 drive the clamping plate 64 to move. During this process, the auxiliary rod 65 on the clamping plate 64 always moves along the auxiliary plate 62. Continue to rotate the screws 63 until the clamping plate 64 tightly abuts against the floating roller 4, so that the position of the positioning rings 61 is fixed. The anti-slip texture increases the friction of the operating end of the screws 63, making it easier for the user to rotate the screws 63. The anti-slip pad 66 increases the friction of the surface of the clamping plate 64, improving the limiting effect of the clamping plate 64.

[0036] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mechanical tension balancing linkage for a film winder, characterized by, include: A plate (1) has two fixed rollers (2) installed on one side. A swing arm (3) is rotatably connected to the side of the plate (1) near the fixed rollers (2). A floating roller (4) is installed on the movable end of the swing arm (3). An adjustment structure (5) is provided on the surface of the plate (1) at the position corresponding to the swing arm (3). The adjustment structure (5) includes a slide groove (501). The slide groove (501) is opened on the plate (1). A slide rod (502) is fixedly connected to the side of the swing arm (3) near the plate (1). The slide rod (502) is slidably connected to the inner wall of the slide groove (501). A support plate (503) is fixedly connected to the side of the plate (1) away from the swing arm (3). A support rod (504) is slidably connected to the inner wall of the support plate (503). A sliding frame (505) is fixedly connected to the lower end of the support rod (504). The inner wall of the sliding frame (505) is slidably connected to the sliding rod (502). Mounting frames (507) are fixedly connected to the surfaces of the support rod (504) and the support plate (503). A rotating shaft (508) is fixedly connected to the side of the two mounting frames (507) that is far apart from each other. A baffle (509) is rotatably connected to the arc surface of the rotating shaft (508). A coil spring (510) is sleeved on the arc surface of the rotating shaft (508). The two ends of the coil spring (510) are fixedly connected to the rotating shaft (508) and the baffle (509) respectively. Mounting blocks (512) are slidably connected to the inner walls of the two mounting frames (507). A spring (513) is fixedly connected to the side of the two mounting frames (507) that is close to each other.

2. The mechanical tension balance linkage of a film winder of claim 1, wherein, A round rod (506) is fixedly connected to the upper surface of the sliding frame (505), and the arc surface of the round rod (506) is slidably connected to the support plate (503).

3. The mechanical tension balance link mechanism of a film winder according to claim 1, wherein, The surface of the baffle (509) is fixedly connected with a number of protrusions (511), and the number of protrusions (511) are evenly distributed on the baffle (509).

4. The mechanical tension balance link mechanism of a film winder according to claim 1, wherein, The spring (513) is a high carbon steel spring (513).

5. The mechanical tension balance link mechanism of a film winder according to claim 1, wherein, The floating roller (4) has an auxiliary structure (6) on its arc surface. The auxiliary structure (6) includes two positioning rings (61). The positioning rings (61) are slidably connected to the floating roller (4). Two auxiliary plates (62) are fixedly connected to the side of the two positioning rings (61) that are far apart from each other. A screw (63) is threadedly connected to the surface of the auxiliary plate (62). A clamping plate (64) is rotatably connected to one end of the screw (63). An auxiliary rod (65) is fixedly connected to the side of the clamping plate (64) that is close to the auxiliary plate (62). The arc surface of the auxiliary rod (65) is slidably connected to the auxiliary plate (62).

6. The mechanical tension balance link mechanism of a film winder according to claim 5, wherein, The screw (63) has several anti-slip patterns at the end away from the clamp (64), and the several anti-slip patterns are evenly distributed on the screw (63).

7. The mechanical tension balance link mechanism of a film winder according to claim 5, wherein, An anti-slip pad (66) is fixedly connected to the side of the clamp (64) away from the screw (63), and the anti-slip pad (66) is a rubber pad.

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