Film wrap angle adjustment device and double-release and double-receive coating production line

Abstract

The present invention discloses a film wrap angle adjustment device and a double-release and double-receive coating production line. The film wrap angle adjustment device includes a frame and an angle adjustment mechanism. The frame is provided with a plurality of conveyor rollers, on which films are wound. The angle adjustment mechanism is arranged on the frame. The angle adjustment mechanism includes a horizontal positioning component and an angle fine-tuning component. The horizontal positioning component is slidably connected to the frame. The angle fine-tuning component is arranged on the horizontal positioning component. The horizontal positioning component drives the angle fine-tuning component to move closer to or away from the film wound between two adjacent conveyor rollers. The angle fine-tuning component is provided with a detachable and replaceable adjustment roller, which abuts and pushes the film, thereby changing the wrap angle of the film on the conveyor roller. The horizontal positioning component and the angle fine-tuning component constitute a two-level adjustment system. The contact position is first quickly and roughly adjusted by the horizontal positioning component, and then the angle fine-tuning component accurately controls the size of the angle.

Description

Technical Field

[0001] The present invention relates to the technical field of coating processing, in particular to a film wrap angle adjustment device and a double-release and double-receive coating production line. Background Art

[0002] Coating is a technical process for evenly applying coating to the surface of a film. During the coating process, the film needs to be flattened and conveyed. During the film conveying process, the central angle corresponding to the arc of the contact part between the film and the conveying roller is called the wrap angle. The conveying tension and the wrap angle determine the friction between the conveying roller and the film. When the thickness of the conveyed film changes, if the friction between the conveying roller and the film is too large, it will cause the film to wrinkle. If the friction between the conveying roller and the film is too small, it will slip. Therefore, it is necessary to adjust the conveying tension and the wrap angle in time, and then adjust the friction between the film and the conveying roller to avoid wrinkling of the film and affect subsequent transfer.

[0003] Existing coating processes generally adjust the tension by adjusting the spacing between conveyor rollers or setting tensioning rollers. In this case, the wrap angle will only passively change slightly and cannot be actively adjusted and controlled, resulting in poor control over film wrinkling. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a film wrap angle adjustment device, which can adjust the wrap angle of the film on the conveying roller according to the conveying of films of different thicknesses, thereby realizing precise control of the film wrap angle.

[0005] The present invention also provides a double-release and double-receive coating production line having the above-mentioned film wrap angle adjustment device.

[0006] According to an embodiment of the first aspect of the present invention, a film wrap angle adjustment device includes a frame and an angle adjustment mechanism, wherein the frame is provided with a plurality of conveyor rollers, and a film is wound around the conveyor rollers. The angle adjustment mechanism is provided on the frame, and includes a horizontal adjustment component and an angle fine-adjustment component, wherein the horizontal adjustment component is slidably connected to the frame, and the angle fine-adjustment component is provided on the horizontal adjustment component, wherein the horizontal adjustment component drives the angle fine-adjustment component to move closer to or away from the film wound between two adjacent conveyor rollers, and wherein the angle fine-adjustment component is provided with a detachable and replaceable adjustment roller, wherein the adjustment roller abuts and pushes the film, thereby changing the wrap angle of the film on the conveyor rollers, and wherein the adjustment roller has a plurality of diameter specifications, and by replacing the adjustment rollers with different diameter specifications, the film of different thicknesses can be accommodated.

[0007] At least the following beneficial effects are achieved: the film wrap angle adjustment device includes a frame and a wrap angle adjustment mechanism, wherein a plurality of conveyor rollers are provided on the frame, and a film is wound on the conveyor rollers. The wrap angle adjustment mechanism is provided on the frame. The wrap angle adjustment mechanism includes a horizontal adjustment component and a wrap angle fine-adjustment component. The horizontal adjustment component is slidably connected to the frame. The wrap angle fine-adjustment component is provided on the horizontal adjustment component. The horizontal adjustment component drives the wrap angle fine-adjustment component to move closer to or away from the film wound between two adjacent conveyor rollers. The wrap angle fine-adjustment component is provided with a detachable and replaceable adjustment roller, which abuts and pushes the film, thereby changing the wrap angle of the film on the conveyor roller. The horizontal adjustment component and the wrap angle fine-adjustment component constitute a two-level adjustment system, which firstly uses the horizontal adjustment component to quickly and roughly adjust the contact position, and then uses the wrap angle fine-adjustment component to accurately control the wrap angle size. By actively adjusting the wrap angle, the problem of film wrinkles caused by wrap angle deviation in high-speed production lines is solved.

[0008] According to some embodiments of the present invention, the wrap angle fine-tuning assembly includes a support frame, a swinging member and a first limiting member, the support frame is arranged on the horizontal adjustment assembly, one end of the swinging member is rotatably arranged on the support frame, the adjusting roller is rotatably arranged on the other end of the swinging member, the adjusting roller is detachably connected to the swinging member, the first limiting member is arranged on the support frame, the swinging member is connected to the first limiting member, and the first limiting member is used to limit the swinging angle of the swinging member.

[0009] According to some embodiments of the present invention, the swinging member includes a rotating shaft, a rocker arm, and a rotating shaft driving device. The rotating shaft is rotatably arranged on the supporting frame. One end of the rocker arm is fixedly connected to the rotating shaft. The other end of the rocker arm is provided with a mounting groove for accommodating the adjusting roller. The rotating shaft driving device is arranged on the supporting frame. The output end of the rotating shaft driving device is connected to the rotating shaft. The rotating shaft driving device is used to drive the rotating shaft to rotate.

[0010] According to some embodiments of the present invention, the first limiting member includes a limiting seat and a limiting block, the limiting seat is detachably arranged on the support frame and is located at one end of the rotating shaft, the limiting block is eccentrically arranged at the end of the rotating shaft, and a limiting protrusion is provided on the limiting seat, and the limiting block can abut against the limiting protrusion as the rotating shaft rotates.

[0011] According to some embodiments of the present invention, the frame is connected to a base, the horizontal adjustment assembly includes a horizontal slide rail, a guide frame and a horizontal slide, the horizontal slide rail is arranged on the base, the guide frame is arranged on the base and located above the horizontal slide rail, the horizontal slide is slidably arranged on the horizontal slide rail, and the support frame is arranged on the horizontal slide.

[0012] According to some embodiments of the present invention, the horizontal positioning assembly further includes a second limiting member, and the second limiting member is used to fix the relative positions of the guide frame and the horizontal slide.

[0013] According to some embodiments of the present invention, the second limiting member includes a plurality of limiting holes, limiting slots, limiting sockets and limiting pins, a plurality of the limiting holes are opened on the guide frame, a plurality of the limiting holes are evenly arranged along the length direction of the guide frame, the limiting slots are opened in the horizontal slide, the guide frame is passed through the limiting slots, the limiting sockets are opened on the horizontal slide, the opening direction of the limiting sockets is perpendicular to the limiting slots, and the limiting pins are passed through the limiting holes and the limiting sockets.

[0014] According to some embodiments of the present invention, the limiting hole and the limiting insertion hole are both tapered holes, and the limiting pin is a tapered pin.

[0015] According to some embodiments of the present invention, a handle is provided on the limiting pin.

[0016] According to the second aspect of the present invention, the double-unwinding and double-rewinding coating production line includes two continuous coating devices, one of which is arranged above the other continuous coating device, and both of the continuous coating devices include an automatic unwinding device, a coating device, a coagulation box, a water absorption device, an oven, a correction device, an automatic rewinding device and the film angle adjustment device of the first aspect embodiment. The automatic unwinding device, the film angle adjustment device, the coating device, the coagulation box, the water absorption device, the oven, the correction device and the automatic rewinding device are arranged in sequence along the conveying path of the film.

[0017] At least the following beneficial effects are achieved: this double-release and double-receive coating production line has all the beneficial effects brought about by the above-mentioned film wrap angle adjustment device, which will not be repeated here.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0020] Figure 1 A schematic diagram of the structure of an embodiment of the present invention Figure 1 ;

[0021] Figure 2 is a cross-sectional view of an embodiment of the present invention;

[0022] Figure 3A schematic diagram of the structure of an embodiment of the present invention Figure 2 ;

[0023] Figure 4 for Figure 2 Partial cross-sectional view of section AA;

[0024] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 6 for Figure 3 A partial enlarged view of point C in the middle.

[0026] Reference numerals:

[0027] Frame 10, base 11;

[0028] Wrap angle adjustment mechanism 20, horizontal adjustment assembly 21, horizontal slide rail 211, guide frame 212, horizontal slide 213, second limiting member 214, limiting hole 214a, limiting slot 214b, limiting socket 214c, limiting pin 214d, handle 214e, wrap angle fine adjustment assembly 22, support frame 221, swing member 222, rotating shaft 222a, swing rod 222b, rotating shaft driving device 222c, adjusting roller 223, first limiting member 224, limiting seat 224a, limiting protrusion 224c, limiting block 224b;

[0029] Conveyor roller 30;

[0030] Film 40. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 6The present invention discloses a film wrap angle adjustment device including a frame 10 and a wrap angle adjustment mechanism 20. The frame 10 is provided with a plurality of conveying rollers, on which a film is wound. The wrap angle adjustment mechanism 20 is arranged on the frame 10. The wrap angle adjustment mechanism 20 includes a horizontal adjustment component 21 and a wrap angle fine-adjustment component 22. The horizontal adjustment component 21 is slidably connected to the frame 10. The wrap angle fine-adjustment component 22 is arranged on the horizontal adjustment component 21. The horizontal adjustment component 21 drives the wrap angle fine-adjustment component 22 to move closer to or away from a film 40 wound between two adjacent conveying rollers. The wrap angle fine-adjustment component 22 is provided with a detachable and replaceable adjustment roller 223. The adjustment roller 223 presses against and pushes the film 40, thereby changing the wrap angle of the film 40 on the conveying roller 30. The adjustment roller 223 has a plurality of diameter specifications. By replacing the adjustment roller 223 with different diameter specifications, it can adapt to films 40 of different thicknesses.

[0035] In an embodiment of the present invention, the wrap angle of the film 40 on the conveying roller 30 is actively adjusted by replacing the adjustment roller 223 with different diameters. At the same time, the horizontal adjustment component 21 and the wrap angle fine-tuning component 22 constitute a two-level adjustment system. The contact position is first quickly and roughly adjusted by the horizontal adjustment component 21, and then the wrap angle size is accurately controlled by the wrap angle fine-tuning component 22, thereby greatly improving the film tension adjustment accuracy and solving the problem of film wrinkles caused by wrap angle deviation in high-speed production lines.

[0036] Reference Figures 1 to 6 The wrap angle fine-tuning assembly 22 includes a support frame 221, a swinging member 222, and a first limiting member 224. The support frame 221 is disposed on the horizontal adjustment assembly 21. One end of the swinging member 222 is rotatably disposed on the support frame 221. The adjusting roller 223 is rotatably disposed on the other end of the swinging member 222. The adjusting roller 223 is detachably connected to the swinging member 222. The first limiting member 224 is disposed on the support frame 221. The swinging member 222 is connected to the first limiting member 224. The first limiting member 224 is used to limit the swing angle of the swinging member 222.

[0037] It should be noted that, in an embodiment of the present invention, the detachable adjusting roller 223 supports the rapid replacement of rollers of different diameters to accommodate a variety of film thicknesses; the first limiting member 224 mechanically limits the swinging member 222 to avoid film tearing caused by over-adjustment, thereby greatly reducing the mechanical failure rate.

[0038] Reference Figures 1 to 6The swing member 222 includes a rotating shaft 222a, a swing arm 222b, and a rotating shaft drive device 222c. The rotating shaft 222a is rotatably mounted on the support frame 221. One end of the swing arm 222b is fixedly connected to the rotating shaft 222a. The other end of the swing arm 222b defines a mounting slot for accommodating the adjustment roller 223. The rotating shaft drive device 222c is mounted on the support frame 221. The output end of the rotating shaft drive device 222c is connected to the rotating shaft 222a. The rotating shaft drive device 222c is used to drive the rotating shaft 222a to rotate.

[0039] It should be noted that when the adjusting roller 223 is working, it is close to the conveying roller, and its position is not convenient for disassembly and replacement, and replacement requires a lot of time. Through the swing component 222, the position of the adjusting roller 223 can be adjusted so that it is located in an open position for easy replacement, thereby improving equipment maintenance efficiency.

[0040] It should be noted that, in an embodiment of the present invention, the shaft drive device 222c provides servo-level angle control, so that the pushing force of the adjustment roller 223 on the film 40 can be linearly adjusted; the mounting groove design of the rocker arm 222b enables tool-free disassembly and assembly of the adjustment roller 223, and the maintenance efficiency is improved by 300%.

[0041] Reference Figures 1 to 6 The first limiting member 224 includes a limiting seat 224a and a limiting block 224b. The limiting seat 224a is detachably mounted on the support frame 221 and is located at one end of the rotating shaft 222a. The limiting block 224b is eccentrically mounted at the end of the rotating shaft 222a. The limiting seat 224a is provided with a limiting protrusion 224c. The limiting block 224b rotates with the rotating shaft 222a to abut against the limiting protrusion 224c.

[0042] It should be noted that, in an embodiment of the present invention, the eccentric limit block 224b and the limit protrusion 224c constitute a hard mechanical stop, which is instantly locked when the rotating shaft 222a overrotates; the detachable design of the limit seat 224a allows for customized limit angles to meet different process requirements.

[0043] Reference Figures 1 to 6 The frame 10 is connected to the base 11. The horizontal adjustment assembly 21 includes a horizontal slide rail 211, a guide frame 212, and a horizontal slide 213. The horizontal slide rail 211 is disposed on the base 11. The guide frame 212 is disposed on the base 11 and is located above the horizontal slide rail 211. The horizontal slide 213 is slidably disposed on the horizontal slide rail 211. The support frame 221 is disposed on the horizontal slide 213.

[0044] It should be noted that in the embodiment of the present invention, the horizontal slide rail 211 and the guide frame 212 form a double-track load-bearing structure, providing stable sliding guidance and avoiding vibration. The linear movement of the horizontal slide 213 allows the angle fine-tuning assembly 22 to be translated and positioned as a whole.

[0045] Reference Figures 1 to 6 The horizontal position adjustment assembly 21 further includes a second position limiting member 214. The second position limiting member 214 is used to fix the relative positions of the guide frame 212 and the horizontal slide 213.

[0046] It should be noted that, in an embodiment of the present invention, the limit pin 214d cooperates with the tapered hole to achieve gapless locking, eliminating the micro-displacement of the horizontal slide 213; the limit holes 214a are evenly arranged along the guide frame 212 to adapt to the standardized production line spacing.

[0047] Reference Figures 1 to 6 The second limiting member 214 includes a plurality of limiting holes 214a, a limiting slot 214b, a limiting socket 214c, and a limiting pin 214d. The plurality of limiting holes 214a are provided on the guide frame 212. The plurality of limiting holes 214a are evenly arranged along the length direction of the guide frame 212. The limiting slot 214b is provided in the horizontal slide 213. The guide frame 212 is provided in the limiting slot 214b. The limiting socket 214c is provided in the horizontal slide 213. The opening direction of the limiting socket 214c is perpendicular to the limiting slot 214b. The limiting pin 214d is provided in the limiting holes 214a and the limiting socket 214c.

[0048] Reference Figure 4 The limiting hole 214a and the limiting insertion hole 214c are both tapered holes, and the limiting pin 214d is a tapered pin.

[0049] Reference Figure 4 As an embodiment of the present invention, a handle 214e is provided on the limiting pin 214d.

[0050] It should be noted that, in the embodiment of the present invention, the self-locking fit between the limit pin 214d and the tapered hole can maintain the locking force even in a vibration environment of the equipment, thereby avoiding the risk of accidental disengagement of a traditional cylindrical pin.

[0051] The handle 214e provides a tool-free operation interface, and the operator can quickly insert and remove the limit pin 214d even when wearing gloves, greatly improving the efficiency of production line changeovers.

[0052] The present invention also discloses a double-unwinding and double-winding coating production line, comprising two continuous coating devices, one of which is located above the other continuous coating device. Both continuous coating devices include an automatic unwinding device, a film wrap angle adjustment device, a coating device, a coagulation box, a water absorption device, a drying oven, a deviation correction device, and an automatic winding device. The automatic unwinding device, film wrap angle adjustment device, coating device, coagulation box, water absorption device, drying oven, deviation correction device, and automatic winding device are sequentially arranged along the conveying path of the film 40. In an embodiment of the present invention, the double-unwinding and double-winding coating production line is a device for performing surface coating processing on substrates such as film 40 and paper, and has two unwinding devices and two winding devices. Its working process is generally as follows: the two unwinding devices respectively unwind the substrate, the coating device coats the surface of the substrate with a layer of glue, paint, or ink with a specific function, and then the substrate is dried by the drying device. Finally, the two winding devices respectively wind the coated and dried substrate into rolls. The double-release and double-collection coating production line can realize continuous production. Through the double-release and double-collection and non-stop material receiving technology, it shortens the production cycle and improves production efficiency. At the same time, it reduces manual intervention and downtime, reduces the operating cost of the equipment, and also reduces the errors and waste caused by material replacement or adjustment, which is conducive to improving the quality of film products.

[0053] Specifically, the dual-unwind and dual-wind coating production line includes two continuous coating devices capable of independently performing spot coating on the film 40, thereby significantly improving the coating efficiency of the film 40. The automatic unwinding device, coating device, coagulation box, water absorption device, drying oven, deviation correction device, and automatic winder are all common devices in the field of coating technology and will not be further described here.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Film wrap angle adjustment device, characterized in that: include: A frame (10), wherein a plurality of conveying rollers (30) are provided on the frame (10), and a film (40) is wound around the conveying rollers (30); An angle adjustment mechanism (20), the angle adjustment mechanism (20) is arranged on the frame (10), the angle adjustment mechanism (20) includes a horizontal adjustment component (21) and an angle fine-adjustment component (22), the horizontal adjustment component (21) is slidably connected to the frame (10), the angle fine-adjustment component (22) is arranged on the horizontal adjustment component (21), the horizontal adjustment component (21) drives the angle fine-adjustment component (22) to approach or move away from the film (40) wound between two adjacent conveying rollers, a detachable and replaceable adjustment roller (223) is provided on the angle fine-adjustment component (22), the adjustment roller (223) presses against and pushes the film (40), thereby changing the angle of the film (40) on the conveying roller (30), the adjustment roller (223) has several diameter specifications, and the adjustment roller (223) with different diameter specifications is replaced to adapt to the film (40) of different thicknesses; The wrap angle fine-tuning assembly (22) comprises a support frame (221), a swinging member (222), and a first limiting member (224); the support frame (221) is arranged on the horizontal adjustment assembly (21); one end of the swinging member (222) is rotatably arranged on the support frame (221); the adjusting roller (223) is rotatably arranged on the other end of the swinging member (222); the adjusting roller (223) is detachably connected to the swinging member (222); the first limiting member (224) is arranged on the support frame (221); the swinging member (222) is connected to the first limiting member (224); and the first limiting member (224) is used to limit the swing angle of the swinging member (222).

2. The film wrap angle adjustment device according to claim 1, characterized in that: The swing component (222) comprises a rotating shaft (222a), a rocker arm (222b), and a rotating shaft driving device (222c); the rotating shaft (222a) is rotatably arranged on the support frame (221); one end of the rocker arm (222b) is fixedly connected to the rotating shaft (222a); the other end of the rocker arm (222b) is provided with a mounting groove for accommodating the adjusting roller (223); the rotating shaft driving device (222c) is arranged on the support frame (221); the output end of the rotating shaft driving device (222c) is connected to the rotating shaft (222a); and the rotating shaft driving device (222c) is used to drive the rotating shaft (222a) to rotate.

3. The film wrap angle adjustment device according to claim 2, characterized in that: The first limiting member (224) comprises a limiting seat (224a) and a limiting block (224b); the limiting seat (224a) is detachably arranged on the support frame (221) and is located at one end of the rotating shaft (222a); the limiting block (224b) is eccentrically arranged at the end of the rotating shaft (222a); a limiting protrusion (224c) is arranged on the limiting seat (224a); and the limiting block (224b) rotates with the rotating shaft (222a) and can abut against the limiting protrusion (224c).

4. The film wrap angle adjustment device according to claim 1, characterized in that: The frame (10) is connected to a base (11), and the horizontal adjustment component (21) includes a horizontal slide rail (211), a guide frame (212) and a horizontal slide (213). The horizontal slide rail (211) is arranged on the base (11), the guide frame (212) is arranged on the base (11) and is located above the horizontal slide rail (211), the horizontal slide (213) is slidably arranged on the horizontal slide rail (211), and the support frame (221) is arranged on the horizontal slide (213).

5. The film wrap angle adjustment device according to claim 4, characterized in that: The horizontal positioning assembly (21) further includes a second limiting member (214), and the second limiting member (214) is used to fix the relative position of the guide frame (212) and the horizontal slide (213).

6. The film wrap angle adjustment device according to claim 5, characterized in that: The second limiting component (214) includes a plurality of limiting holes (214a), a limiting slot (214b), a limiting plug hole (214c) and a limiting pin (214d), wherein the plurality of limiting holes (214a) are provided on the guide frame (212), and the plurality of limiting holes (214a) are evenly arranged along the length direction of the guide frame (212), the limiting slot (214b) is provided in the horizontal slide (213), the guide frame (212) is provided in the limiting slot (214b), the limiting plug hole (214c) is provided on the horizontal slide (213), the opening direction of the limiting plug hole (214c) is perpendicular to the limiting slot (214b), and the limiting pin (214d) is provided in the limiting hole (214a) and the limiting plug hole (214c).

7. The film wrap angle adjustment device according to claim 6, characterized in that: The limiting hole (214a) and the limiting insertion hole (214c) are both tapered holes, and the limiting pin (214d) is a tapered pin.

8. The film wrap angle adjustment device according to claim 6, characterized in that: The limiting pin (214d) is provided with a handle (214e).

9. Double-release and double-receive coating production line, characterized in that: The invention comprises two continuous coating devices, wherein one of the continuous coating devices is arranged above the other continuous coating device, and both of the continuous coating devices comprise an automatic unwinding device, a coating device, a coagulation box, a water absorption device, an oven, a deviation correction device, an automatic winding device, and a film wrap angle adjustment device as described in any one of claims 1 to 8, wherein the automatic unwinding device, the film wrap angle adjustment device, the coating device, the coagulation box, the water absorption device, the oven, the deviation correction device, and the automatic winding device are arranged in sequence along the conveying path of the film (40).

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