Film stretching and annealing equipment

Abstract

The utility model discloses thin film stretching and annealing equipment which comprises a base plate, a mounting frame provided with a wind-up roller and arranged at the top of the base plate, a mounting plate provided with a conveying roller in a rotating mode, a plurality of annealing compression rollers located between the conveying roller and the wind-up roller and arranged on the mounting plate, and a rotating shaft connected with the mounting frame in a rotating mode. A straight rod is located on one side of the mounting frame and fixedly connected with the rotating shaft, winding rollers are arranged at the two ends of the straight rod, a motor used for driving the rotating shaft to rotate is arranged on the other side of the mounting frame, the conveying roller is located at the end, away from the winding rollers, of the mounting plate, and a transmission mechanism is arranged between a shaft rod of the conveying roller and the rotating shaft. An arc-shaped plate is located above the conveying rollers and elastically connected to the mounting plate, and a plurality of circular protrusions are arranged on the side, opposite to the conveying rollers, of the arc-shaped plate. According to the utility model, the flattening of the film is facilitated, the moving consistency of the film is improved, the uniform movement of the film is facilitated, and the annealing effect of the film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film stretching, in particular to a film stretching annealing device. Background Art

[0002] During the film production process, the film is stretched at a certain temperature, then annealed, cooled, and finally rolled up. The film is stretched and annealed by adjusting the traction speed and temperature of the preheating roller, stretching roller, annealing roller, and cooling roller. Stretching is to increase the longitudinal tensile strength; annealing is to eliminate the internal stress of the stretched film and adjust the shrinkage rate.

[0003] After searching, the patent publication number CN215320787U discloses a "film blowing online annealing and stretching device", which includes a preheating oven, a preheating roller group, and a cooling roller group; the temperature in the preheating oven is set below 80°C; a preheating roller group and a cooling roller group are arranged behind the preheating oven; a plurality of preheating rollers are arranged in the preheating roller group; a plurality of cooling rollers are arranged in the cooling roller group; the film alternately passes through the preheating roller and the cooling roller; the temperature difference between the preheating roller and the cooling roller is greater than 50°C. The device is equipped with a special annealing and stretching system after film blowing to adjust the horizontal and vertical stretching difference of the film. Through repeated heating and cooling, the temperature changes alternately by sudden heating and sudden cooling, the crystallinity and grain size of the film are changed, so that the horizontal and vertical differences of the material are more balanced.

[0004] In the prior art, the film is generally preheated by a preheating roller, and then stretched by a guide roller and a stretching roller. However, when the film moves on multiple annealing rollers, wrinkles and inconsistent movement are easily generated, which affects the annealing effect of the film. Utility Model Content

[0005] The utility model aims to provide a film stretching annealing device, which is beneficial to the flattening of the film and improves the consistency of the film movement, and is also beneficial to the uniform movement of the film and enhances the annealing effect of the film.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a film stretching annealing device, comprising: a base plate, a mounting frame with a winding roller is arranged on the top of the base plate, a mounting plate with a conveying roller rotatably mounted, and a plurality of annealing pressure rollers are arranged between the conveying roller and the winding roller and on the mounting plate;

[0007] The mounting frame is rotatably connected to a rotating shaft, a straight rod is located on one side of the mounting frame and fixedly connected to the rotating shaft, and the winding roller is arranged at both ends of the straight rod, and a motor for driving the rotating shaft to rotate is arranged on the other side of the mounting frame, the conveying roller is located at the end of the mounting plate away from the winding roller, and a transmission mechanism is arranged between the shaft of the conveying roller and the rotating shaft; an arc plate is located above the conveying roller and elastically connected to the mounting plate, and a plurality of circular protrusions are arranged on the arc plate relative to the side of the conveying roller.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, the mounting plate is provided with a slide groove which is slidably connected to the arc plate, and an elastic member is provided between the arc plate and the inner wall of the slide groove.

[0010] 2. In the above solution, the arc-shaped plate is fixedly connected to a sliding block embedded in the sliding groove.

[0011] 3. In the above solution, when the circular protrusion contacts the circumferential outer wall of the conveying roller, the elastic member is in a compressed state.

[0012] 4. In the above solution, the transmission mechanism includes: a first sprocket mounted on the rotating shaft, a second sprocket mounted on the conveying roller shaft, and a chain is mounted between the first sprocket and the second sprocket.

[0013] 5. In the above solution, the motor is installed on the top of a side panel, and the side panel is fixedly connected to the mounting frame.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses a film stretching annealing device, which is located at one side of a mounting frame and has a straight rod fixedly connected to a rotating shaft, and winding rollers are arranged at both ends of the straight rod, and a motor for driving the rotating shaft to rotate is arranged at the other side of the mounting frame, the conveying roller is located at the end of the mounting plate away from the winding roller, and a transmission mechanism is arranged between the shaft rod of the conveying roller and the rotating shaft, and a plurality of circular protrusions are arranged on the side of the arc plate relative to the conveying roller, and the rotating shaft is driven by a motor to rotate to drive the two winding rollers to wind the film, and the conveying roller is driven to rotate by the transmission mechanism to unwind the film, and the film between the conveying roller and the winding roller is wound around a plurality of annealing rollers, and the circular protrusions reduce the wrinkles of the film during the movement of the film, which is beneficial to the flattening of the film, improves the consistency of the film movement, and is beneficial to the uniform movement of the film on the annealing roller, thereby improving the annealing effect of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1This is a schematic structural diagram of the first perspective of the film stretching annealing device of the utility model;

[0017] Attached Figure 2 This is a second perspective structural schematic diagram of the film stretching annealing device of the utility model;

[0018] Attached Figure 3 For the utility model Figure 1 A magnified image of point A;

[0019] Attached Figure 4 For the utility model Figure 2 Enlarged view of point B.

[0020] In the above drawings: 1. conveying roller; 2. arc plate; 201. slider; 3. mounting plate; 301. slide groove; 4. base plate; 5. winding roller; 6. mounting frame; 7. first sprocket; 8. motor; 9. side plate; 10. chain; 11. second sprocket; 12. annealing roller; 13. straight rod; 14. rotating shaft; 15. circular protrusion; 16. elastic member. DETAILED DESCRIPTION

[0021] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0022] Embodiment 1: A film stretching annealing device, comprising: a base plate 4, a mounting frame 6 with a winding roller 5 is arranged on the top of the base plate 4, a mounting plate 3 with a conveying roller 1 rotatably mounted thereon, a plurality of annealing pressure rollers 12 are arranged between the conveying roller 1 and the winding roller 5 and on the mounting plate 3;

[0023] The film is passed through the conveying roller, the curved plate and the annealing roller, and the film is rolled up by the winding roller. The film is stretched by the opposite friction between the conveying roller and the circular protrusions on the surface of the curved plate.

[0024] The mounting frame 6 is rotatably connected to a rotating shaft 14, a straight rod 13 is located on one side of the mounting frame 6 and fixedly connected to the rotating shaft 14, and the winding roller 5 is arranged at both ends of the straight rod 13, and a motor 8 for driving the rotating shaft 14 to rotate is arranged on the other side of the mounting frame 6, the conveying roller 1 is located at the end of the mounting plate 3 away from the winding roller 5, and a transmission mechanism is arranged between the shaft of the conveying roller 1 and the rotating shaft 14; an arc plate 2 is located above the conveying roller 1 and elastically connected to the mounting plate 3, and a plurality of circular protrusions 15 are arranged on the side of the arc plate 2 relative to the conveying roller 1;

[0025] The motor is started, and the winding roller is driven to rotate through the rotating shaft and the straight rod for winding. At the same time, under the chain transmission between the first sprocket and the second sprocket, the conveying roller also rotates at the same time to ensure the synchronization of winding.

[0026] The mounting plate 3 is provided with a slide groove 301 which is slidably connected to the arc plate 2, and an elastic member 16 is provided between the arc plate 2 and the inner wall of the slide groove 301;

[0027] When the film on the conveying roller is gradually reduced, in order to ensure that the arc plate is in close contact with the film, the slider is pushed to move in the slide groove by the elastic member, thereby driving the arc plate to always be in close contact with the film.

[0028] The arc plate 2 is fixedly connected to a slider 201 which is embedded in the slide groove 301 .

[0029] When the circular protrusion 15 contacts the circumferential outer wall of the conveying roller 1 , the elastic member 16 is in a compressed state.

[0030] The transmission mechanism comprises: a first sprocket 7 sleeved on the rotating shaft 14, a second sprocket 11 sleeved on the shaft of the conveying roller 1, and a chain 10 is sleeved between the first sprocket 7 and the second sprocket 11.

[0031] The motor 8 is mounted on the top of a side plate 9 , and the side plate 9 is fixedly connected to the mounting frame 6 .

[0032] The winding roller 5 and the conveying roller 1 are arranged in parallel.

[0033] The circular protrusions 15 are arranged in an array.

[0034] Embodiment 2: A film stretching annealing device, comprising: a base plate 4, a mounting frame 6 with a winding roller 5 is arranged on the top of the base plate 4, a mounting plate 3 with a conveying roller 1 rotatably mounted thereon, a plurality of annealing pressure rollers 12 are arranged between the conveying roller 1 and the winding roller 5 and on the mounting plate 3;

[0035] The mounting frame 6 is rotatably connected to a rotating shaft 14, a straight rod 13 is located on one side of the mounting frame 6 and fixedly connected to the rotating shaft 14, and the winding roller 5 is arranged at both ends of the straight rod 13, and a motor 8 for driving the rotating shaft 14 to rotate is arranged on the other side of the mounting frame 6, the conveying roller 1 is located at the end of the mounting plate 3 away from the winding roller 5, and a transmission mechanism is arranged between the shaft of the conveying roller 1 and the rotating shaft 14; an arc plate 2 is located above the conveying roller 1 and elastically connected to the mounting plate 3, and a plurality of circular protrusions 15 are arranged on the side of the arc plate 2 relative to the conveying roller 1;

[0036] A motor drives the rotating shaft to rotate and drive two winding rollers to wind up the film. At the same time, the transmission mechanism drives the conveying roller to rotate to unwind the film. The film between the conveying roller and the winding roller is wrapped around multiple annealing rollers. The circular protrusions reduce the wrinkles of the film during the movement, which is beneficial to flattening the film, improving the consistency of the film movement, and facilitating the uniform movement of the film on the annealing roller, thereby improving the annealing effect of the film.

[0037] The mounting plate 3 is provided with a sliding groove 301 slidably connected to the arc plate 2 , and an elastic member 16 is disposed between the arc plate 2 and the inner wall of the sliding groove 301 .

[0038] The arc plate 2 is fixedly connected to a slider 201 which is embedded in the slide groove 301 .

[0039] When the circular protrusion 15 contacts the circumferential outer wall of the conveying roller 1 , the elastic member 16 is in a compressed state.

[0040] The transmission mechanism comprises: a first sprocket 7 sleeved on the rotating shaft 14, a second sprocket 11 sleeved on the shaft of the conveying roller 1, and a chain 10 is sleeved between the first sprocket 7 and the second sprocket 11.

[0041] The motor 8 is mounted on the top of a side plate 9 , and the side plate 9 is fixedly connected to the mounting frame 6 .

[0042] The winding roller 5 and the conveying roller 1 are arranged in parallel.

[0043] The circular protrusions 15 are arranged in an array.

[0044] The middle portion of the straight rod 13 is fixedly connected to the rotating shaft 14 .

[0045] The working principle is:

[0046] When in use, the film is passed through the conveying roller, the curved plate and the annealing roller, and the film is rolled up by the winding roller. The film is stretched by the opposite friction between the conveying roller and the circular protrusions on the surface of the curved plate. When the film on the conveying roller is gradually reduced, in order to ensure that the curved plate is in close contact with the film, the slider is pushed to move in the slide groove by the elastic member, thereby driving the curved plate to always be in close contact with the film.

[0047] The motor is started, and the winding roller is driven to rotate through the rotating shaft and the straight rod for winding. At the same time, under the chain transmission between the first sprocket and the second sprocket, the conveying roller also rotates at the same time to ensure the synchronization of winding.

[0048] When the above-mentioned film stretching annealing equipment is used, a motor drives the rotating shaft to rotate and drive two winding rollers to wind up the film. At the same time, a transmission mechanism drives the conveying roller to rotate to unwind the film, and the film between the conveying roller and the winding roller is wrapped around multiple annealing rollers. During the movement of the film, the circular protrusions reduce the wrinkles of the film, which is beneficial to the flattening of the film, improves the consistency of the film movement, and is beneficial to the uniform movement of the film on the annealing roller, thereby improving the annealing effect of the film.

[0049] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A film stretching annealing device, comprising: A base plate (4), characterized in that: a mounting frame (6) having a winding roller (5) is arranged on the top of the base plate (4), a mounting plate (3) on which a conveying roller (1) is rotatably mounted, and a plurality of annealing rollers (12) are arranged on the mounting plate (3) between the conveying roller (1) and the winding roller (5); The mounting frame (6) is rotatably connected to a rotating shaft (14); a straight rod (13) is located on one side of the mounting frame (6) and fixedly connected to the rotating shaft (14); the winding roller (5) is arranged at both ends of the straight rod (13); a motor (8) for driving the rotating shaft (14) to rotate is arranged on the other side of the mounting frame (6); the conveying roller (1) is located at one end of the mounting plate (3) away from the winding roller (5); and a transmission mechanism is arranged between the shaft of the conveying roller (1) and the rotating shaft (14); and an arc plate (2) is located above the conveying roller (1) and elastically connected to the mounting plate (3); and a plurality of circular protrusions (15) are arranged on one side of the arc plate (2) relative to the conveying roller (1).

2. The film stretching annealing equipment according to claim 1, characterized in that: The mounting plate (3) is provided with a sliding groove (301) which is slidably connected to the arc plate (2), and an elastic member (16) is provided between the arc plate (2) and the inner wall of the sliding groove (301).

3. The film stretching annealing equipment according to claim 2, characterized in that: The arc-shaped plate (2) is fixedly connected to a sliding block (201) embedded in the sliding groove (301).

4. The film stretching annealing equipment according to claim 2, characterized in that: When the circular protrusion (15) contacts the circumferential outer wall of the conveying roller (1), the elastic member (16) is in a compressed state.

5. The film stretching annealing equipment according to claim 2, characterized in that: The transmission mechanism comprises: a first sprocket (7) sleeved on a rotating shaft (14), a second sprocket (11) sleeved on a shaft of a conveying roller (1), and a chain (10) sleeved between the first sprocket (7) and the second sprocket (11).

6. The film stretching annealing equipment according to claim 1, characterized in that: The motor (8) is mounted on the top of a side plate (9), and the side plate (9) is fixedly connected to the mounting frame (6).

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