Tension-adjustable unwinding structure for coating machine

Abstract

The utility model discloses a tension-adjustable unreeling structure for a coating machine, which belongs to the technical field of unreeling of coating machines and is characterized by comprising coating equipment, a tension-adjustable transmission mechanism is arranged on the front side of the coating equipment, a tension-adjustable unreeling mechanism is movably connected to the inner side of the tension-adjustable transmission mechanism, and the tension-adjustable unreeling mechanism is movably connected to the inner side of the tension-adjustable transmission mechanism. The surface tension of the unwinding roller can be integrally adjusted, the surface tension of the unwinding roller can also be independently adjusted, and effective adjustment can be carried out under the conditions of different unwinding speeds and different tension of coiled materials, so that the effects that the tension is small during unwinding, the coiled materials are disengaged, and the coiled materials with large tension are broken are achieved, and the production efficiency is improved. By means of the adjusting roller and the conveying roller, the horizontal distance and the height distance between the adjusting roller and the conveying roller and between the conveying rollers can be adjusted in the conveying process, and when the tensioning effect is adjusted and the tension strength is adapted, adjustment which is faster in response and higher in precision can be conducted, so that the situation that coiled materials are damaged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coating machine unwinding technical field especially relates to a coating machine adjustable tension unwinding structure. BACKGROUND

[0002] The coating machine is mainly used for the surface coating process production of film, paper and the like, and the coating machine can coat a layer of glue, paint or ink with special function on the wound substrate, and after drying, it is wound, which adopts a special multifunctional coating head and can realize various forms of surface coating production.

[0003] In the prior art, the internal structure of the coating machine is relatively compact in order to save floor space, but the volume and weight of the wound substrate are large, and it is inconvenient to load and unload in the limited space, and the operators spend a lot of time on loading, unloading and other work, which affects the production efficiency.

[0004] In view of the above problems, the existing patent (publication number: CN215159583U) proposes a coating machine adjustable tension unwinding structure, which is arranged side by side by the unwinding mechanism and the winding mechanism at one end of the coating machine body close to the feeding port; the unwinding translation mechanism is installed on the inner side wall of the coating machine body; the unwinding mechanism and the unwinding translation mechanism are detachably connected; the unwinding mechanism is translationally and slidingly connected with the coating machine body through the unwinding translation mechanism; the winding translation mechanism is installed on the inner side wall of the coating machine body and is located above the unwinding translation mechanism; the winding mechanism and the winding translation mechanism are detachably connected; the winding mechanism is translationally and slidingly connected with the coating machine body through the winding translation mechanism, the unwinding mechanism and the winding mechanism of the utility model are designed to be detachable and can be translationally adjusted in position, and when it is necessary to change the material or unload, the position can be adjusted to be close to the feeding port, so as to facilitate the material changing and unloading work.

[0005] In view of the above problems, the existing patent gives a solution, but the existing coating machine hollow unwinding roller of the coating machine cannot adjust the surface tension, is affected by the unwinding speed, and cannot unwind according to the rotation rate of the hollow unwinding roller. The problem of slipping and loosening occurs, and the horizontal distance and height distance between the hollow unwinding roller and the transmission roller are adjusted by the traditional mechanical structure during the unwinding process, but during the high-speed unwinding process, the tension of the wound material may suddenly change due to various factors, and a faster adjusting structure is needed to respond quickly, so as to adjust the tension and avoid damage to the wound material.

[0006] Therefore, a coating machine adjustable tension unwinding structure is proposed. Utility model content

[0007] The utility model discloses a purpose lies in, provide a kind of adjustable tension unwinding structure for coating machine, can solve the surface tension of existing openwork unwinding roll cannot be adjusted under certain speed unwinding operation is difficult to carry out, and the problem of slow response speed of transmission adjustment between each roll by traditional mechanical structure.

[0008] To achieve the above object, the utility model provides following technical scheme: a kind of adjustable tension unwinding structure for coating machine, including coating equipment, the front side of the coating equipment is provided with adjustable tension transmission mechanism, the inside of the adjustable tension transmission mechanism is movably connected with adjustable tension unwinding mechanism;

[0009] The adjustable tension unwinding mechanism includes openwork unwinding roll, adjusting assembly, bearing frame and adjusting roll, the inside of the adjustable tension transmission mechanism is movably connected with the openwork unwinding roll, the inside of the openwork unwinding roll is movably connected with the adjusting assembly, the outside of the openwork unwinding roll is slidably connected with the bearing frame, the inside of the adjusting assembly is movably connected with the bearing frame, the inside of the bearing frame is movably connected with the adjusting roll.

[0010] Preferably, the front side and the rear side of the coating equipment are provided with slide rail bottom plates, the top of the slide rail bottom plate is slidably connected with a power generation box, the inside of the power generation box is threadedly connected with an electric bidirectional threaded rod, and the inside of the power generation box is fixedly connected with a cavity limiting stand.

[0011] Preferably, the outside of the cavity limiting stand is movably connected with an electromagnetic coil, the inside of the cavity limiting stand is provided with a magnetorheological fluid, the inside of the cavity limiting column is slidably connected with an adjustable bearing piston rod, and the adjustable bearing piston rod is arranged at the top of the magnetorheological fluid.

[0012] Preferably, the top of the adjustable bearing piston rod is fixedly connected with a bearing support block, the outside of the bearing support block is slidably connected with a slide rail vertical plate, the right side of the right bearing support block is fixedly connected with a servo motor, the openwork unwinding roll is fixedly connected to the output end of the front side servo motor, and the openwork unwinding roll is rotatably connected to the inside of the front side bearing support block.

[0013] Preferably, the right side of the inside of the openwork unwinding roll is fixedly connected with an electric turntable, the inside of the electric turntable is provided with an arc-shaped guide groove, and the inside of the arc-shaped guide groove is movably connected with a guide extrusion block.

[0014] Preferably, the guide extrusion block is fixedly connected to the right side of the bearing frame, the inside of the bearing frame is fixedly connected with an electric telescopic rod, the outside of the electric telescopic rod is fixedly connected with a rotating support frame, the rotating support frame is slidably connected to the inside of the bearing frame, and the adjusting roll is rotatably connected to the inside of the rotating support frame.

[0015] Preferably, the front side and the rear side of the coating device are fixedly connected with transmission support bases, the slide rail bottom plates are fixedly connected to the left side and the right side of the transmission support bases, and the slide rail vertical plates are slidably connected to the left side and the right side of the top of the transmission support bases.

[0016] Preferably, the output end of the rear side servo motor is fixedly connected with a transmission roller, and the transmission roller is rotatably connected to the inner side of the rear side bearing support block.

[0017] Compared with the prior art, the coating machine has the advantages that:

[0018] 1. The adjustable tension unwinding mechanism can adjust the surface tension of the unwinding roller as a whole or individually, and can effectively adjust the tension of the unwinding roller when facing different unwinding rates and different roll materials, thereby avoiding small tension during unwinding, roll material separation, and large tension roll material breakage.

[0019] 2. The adjustable tension transmission mechanism can adjust the horizontal distance and the height distance between the adjusting roller and the transmission roller, and between the transmission rollers during transmission, and can adjust the tension effect and adapt to the tension strength without using traditional pure mechanical transmission, but using a combination of mechanical transmission and magnetorheological fluid, so that the sudden rate and tension change during roll material transmission can be responded faster and more accurately, thereby avoiding damage to the roll material. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the adjustable tension unwinding structure of the coating machine.

[0021] Figure 2 It is a partial structure diagram of the adjustable tension unwinding mechanism of the coating machine.

[0022] Figure 3 It is a whole structure diagram of the adjustable tension unwinding mechanism.

[0023] Figure 4 It is a whole structure diagram of the adjustable tension transmission mechanism.

[0024] Figure 5 It is a whole structure diagram of the adjustable tension transmission mechanism.

[0025] In the figure, 1, coating equipment; 2, adjustable tension transmission mechanism; 21, slide rail bottom plate; 22, power generation box; 23, electric bidirectional threaded rod; 24, cavity limiting stand; 25, magnetorheological fluid; 26, adjustable bearing piston rod; 27, bearing support block; 28, slide rail vertical plate; 29, servo motor; 210, electromagnetic coil; 3, adjustable tension unwinding mechanism; 31, hollow unwinding roller; 32, adjusting assembly; 32a, electric turntable; 32b, arc-shaped guide groove; 32c, guide extrusion block; 32d, electric telescopic rod; 32e, rotating support frame; 33, bearing frame; 34, adjusting roller; 4, transmission support base; 5, transmission roller. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] An adjustable tension unwinding structure for a coating machine, comprising coating equipment 1, the front side of the coating equipment 1 is provided with an adjustable tension transmission mechanism 2, the inner side of the adjustable tension transmission mechanism 2 is movably connected with an adjustable tension unwinding mechanism 3.

[0029] The adjustable tension unwinding mechanism 3 comprises a hollow unwinding roller 31, an adjusting assembly 32, a bearing frame 33 and an adjusting roller 34, the hollow unwinding roller 31 is movably connected to the inner side of the adjustable tension transmission mechanism 2, the adjusting assembly 32 is movably connected to the inner side of the hollow unwinding roller 31, the bearing frame 33 is slidably connected to the outer side of the hollow unwinding roller 31, the bearing frame 33 is movably connected to the inner side of the adjusting assembly 32, and the adjusting roller 34 is movably connected to the inner side of the bearing frame 33.

[0030] In the embodiment, the hollow unwinding roller 31 unwinds the winding material, and the extension length of the adjusting roller 34 can be integrally adjusted or individually adjusted by the adjusting assembly 32 during unwinding, so that the tension adjustment requirement under different conditions can be met.

[0031] Specifically, as Figure 1 , Figure 2 , Figure 5As shown, the front side and the rear side of the coating device 1 are provided with slide rail bottom plates 21, the top of the slide rail bottom plate 21 is slidingly connected with a power generation box 22, the inner side of the power generation box 22 is threadedly connected with an electric bidirectional threaded rod 23, and the inner side of the power generation box 22 is fixedly connected with a cavity limiting column 24.

[0032] Specifically, as shown in Figure 1 , Figure 2 , Figure 5 The outer side of the cavity limiting column 24 is movably connected with an electromagnetic coil 210, the inner side of the cavity limiting column 24 is provided with a magneto-rheological fluid 25, and the inner side of the cavity limiting column is slidingly connected with an adjustable bearing piston rod 26. The adjustable bearing piston rod 26 is arranged at the top of the magneto-rheological fluid 25.

[0033] Specifically, as shown in Figure 1 , Figure 2 , Figure 5 The top of the adjustable bearing piston rod 26 is fixedly connected with a bearing support block 27, the outer side of the bearing support block 27 is slidingly connected with a slide rail vertical plate 28, the right side of the right bearing support block 27 is fixedly connected with a servo motor 29, and the hollow unwinding roller 31 is fixedly connected to the output end of the front servo motor 29. The hollow unwinding roller 31 is rotatably connected to the inner side of the front bearing support block 27.

[0034] In this embodiment: by starting the electric bidirectional threaded rod 23 to adjust the horizontal distance between the hollow unwinding roller 31 and the transmission roller 5, the power generation box 22 supplies power to the electromagnetic coil 210, and after the electromagnetic coil 210 generates a magnetic field, the magneto-rheological fluid 25 in the cavity limiting column 24 changes from a non-Newtonian fluid to a solid and deforms according to the size of the magnetic field. The volume can fill the cavity limiting column 24, and the adjustable bearing piston rod 26 is pushed up during deformation. The magneto-rheological fluid 25 has fast response and high lifting precision, can respond to sudden tension changes, and can slowly descend after the electromagnetic field weakens without affecting the transmission of the material. In this way, the distance between the adjusting roller 34 and the transmission roller 5, the transmission roller 5 and the transmission roller 5 can be adjusted faster, so as to respond to the tension, transmission speed change and tensioned material.

[0035] Specifically, as shown in Figure 1 , Figure 2 The right side of the inner side of the hollow unwinding roller 31 is fixedly connected with an electric turntable 32a, the inner side of the electric turntable 32a is provided with an arc-shaped guide groove 32b, and the inner side of the arc-shaped guide groove 32b is movably connected with a guide extrusion block 32c.

[0036] Specifically, as shown in Figure 5 , Figure 3As shown, the guide extrusion block 32c is fixedly connected to the right side of the bearing frame 33, the inner side of the bearing frame 33 is fixedly connected with the electric telescopic rod 32d, the outer side of the electric telescopic rod 32d is fixedly connected with the rotating support frame 32e, the rotating support frame 32e is slidingly connected to the inner side of the bearing frame 33, and the adjusting roller 34 is rotatably connected to the inner side of the rotating support frame 32e.

[0037] In this embodiment: by starting the electric turntable 32a on the inner side of the hollow unwinding roller 31, the turntable rotates to drive the guide extrusion block 32c on the rear side of the bearing frame 33 to slide in the arc-shaped guide groove 32b, so that the bearing frame 33 is simultaneously outward, driving the adjusting roller 34 on its inner side to adjust the tension of the coiled material, and the rotating path of the adjusting roller 34 is on the rotating support frame 32e, which can prevent the coiled material from being broken due to large stress during unwinding, and when the tension is insufficient, the electric telescopic rod 32d is used to lift the rotating support frame 32e of the bearing adjusting roller 34, so that each adjusting roller 34 is adjusted separately with the support frame, realizing more comprehensive tension adjustment to adapt to different unwinding conditions, coiled material quality and reduce coiled material damage.

[0038] Specifically, as shown in Figure 4 , Figure 3 , the front side and the rear side of the coating equipment 1 are fixedly connected with the transmission support base 4, the slide rail bottom plate 21 is fixedly connected to the left side and the right side of the transmission support base 4, and the slide rail vertical plate 28 is slidingly connected to the left side and the right side of the top of the transmission support base 4.

[0039] Specifically, as shown in Figure 4 , Figure 1 Figure 2 Figure 1 Figure 2 , the output end of the rear side servo motor 29 is fixedly connected with the transmission roller 5, and the transmission roller 5 is rotatably connected to the inner side of the rear side bearing support block 27.

[0040] In this embodiment: the transmission support base 4 can support the entire unwinding process and the transmission process, and the transmission roller 5 can transport the coiled material.

[0041] Working principle: before the unwinding operation, first fix the coiled material on the hollow unwinding roller 31 for unwinding, then adjust the initial height of each adjustable bearing piston rod 26, and then carry out the coating operation, the coiled material is unwound through the hollow unwinding roller 31, then conveyed to the inside of the coating equipment 1 through the transmission roller 5, and finally coated through the transmission roller 5, in the above coating process, the horizontal distance between the hollow unwinding roller 31 and the transmission roller 5, the transmission roller 5 and the transmission roller 5 can be adjusted by starting the electric two-way threaded rod 23, and the power generation box 22 can function on the electromagnetic coil 210, when the electromagnetic coil 210 generates a magnetic field after being electrified, the magneto-rheological fluid 25 inside the cavity limiting column 24 will deform from non-Newtonian fluid to solid according to the size of the magnetic field generated by the electromagnetic coil 210, the volume can fill the entire cavity limiting column 24, and the adjustable bearing piston rod 26 is pushed to rise during the deformation process, the magneto-rheological fluid 25 has fast response speed and high rising accuracy, can quickly adjust to sudden changes in tension, and can also slowly descend after the electromagnetic gradually decreases, without affecting the transmission of the coiled material, the above can achieve faster adjustment of the distance between the adjusting roller 34 and the transmission roller 5, the transmission roller 5 and the transmission roller 5, so as to cope with tension changes, transmission speed changes and tension material effects, and in the unwinding process, the electric rotating disc 32a inside the hollow unwinding roller 31 can be started, the rotation of the electric rotating disc 32a will drive the guide extrusion block 32c at the rear side of the bearing frame 33 to slide in the arc-shaped guide groove 32b, so that the bearing frame 33 can be outward at the same time, and the adjusting roller 34 inside the bearing frame 33 can be lifted to adjust the tension of the coiled material, and the rotation path of the adjusting roller 34 is on the rotating support frame 32e, which can effectively prevent the coiled material from being broken due to excessive stress, and when the tension is insufficient, the electric telescopic rod 32d can be used to lift the rotating support frame 32e of the bearing adjusting roller 34, so that each adjusting roller 34 can be individually adjusted with the rotating support frame 32e, so as to achieve more comprehensive tension adjustment, adapt to different unwinding conditions, coiled material quality and reduce coiled material damage.

[0042] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable tension unwinding structure for coating machine, comprising a coating device (1), characterized in that: The front side of the coating equipment (1) is provided with an adjustable tension transmission mechanism (2), and the inner side of the adjustable tension transmission mechanism (2) is movably connected with an adjustable tension unwinding mechanism (3); The adjustable tension unwinding mechanism (3) comprises a hollow unwinding roller (31), an adjusting assembly (32), a bearing frame (33) and an adjusting roller (34), the hollow unwinding roller (31) is movably connected to the inner side of the adjustable tension transmission mechanism (2), the adjusting assembly (32) is movably connected to the inner side of the hollow unwinding roller (31), the bearing frame (33) is slidably connected to the outer side of the hollow unwinding roller (31), the bearing frame (33) is movably connected to the inner side of the adjusting assembly (32), and the adjusting roller (34) is movably connected to the inner side of the bearing frame (33).

2. The adjustable tension unwinding structure for a coating machine according to claim 1, characterized in that: The front side and the rear side of the coating equipment (1) are provided with slide rail bottom plates (21), the top of the slide rail bottom plate (21) is slidably connected with a power generation box (22), the inner side of the power generation box (22) is threadedly connected with an electric bidirectional threaded rod (23), and the inner side of the power generation box (22) is fixedly connected with a cavity limiting stand column (24).

3. The adjustable tension unwinding structure for a coating machine according to claim 2, characterized in that: The outer side of the cavity limiting stand column (24) is movably connected with an electromagnetic coil (210), the inner side of the cavity limiting stand column (24) is provided with a magnetorheological fluid (25), the inner side of the cavity limiting stand column is slidably connected with an adjustable bearing piston rod (26), and the adjustable bearing piston rod (26) is arranged at the top of the magnetorheological fluid (25).

4. The adjustable tension unwinding structure for a coating machine according to claim 3, characterized in that: The top of the adjustable bearing piston rod (26) is fixedly connected with a bearing support block (27), the outer side of the bearing support block (27) is slidably connected with a slide rail vertical plate (28), the right side of the right bearing support block (27) is fixedly connected with a servo motor (29), the hollow unwinding roller (31) is fixedly connected to the output end of the front servo motor (29), and the hollow unwinding roller (31) is rotatably connected to the inner side of the front bearing support block (27).

5. The adjustable tension unwinding structure for coating machine according to claim 1, characterized in that: The right side of the inner side of the hollow unwinding roller (31) is fixedly connected with an electric rotating disc (32a), the inner side of the electric rotating disc (32a) is provided with an arc-shaped guide groove (32b), and the inner side of the arc-shaped guide groove (32b) is movably connected with a guide extrusion block (32c).

6. The adjustable tension unwinding structure for a coating machine according to claim 5, characterized in that: The guide extrusion block (32c) is fixedly connected to the right side of the bearing frame (33), the inner side of the bearing frame (33) is fixedly connected with an electric telescopic rod (32d), the outer side of the electric telescopic rod (32d) is fixedly connected with a rotating support frame (32e), the rotating support frame (32e) is slidably connected to the inner side of the bearing frame (33), and the adjusting roller (34) is rotatably connected to the inner side of the rotating support frame (32e).

7. The adjustable tension unwinding structure for coating machine according to claim 4, characterized in that: The front side and the rear side of the coating equipment (1) are fixedly connected with transmission support bases (4), the slide rail bottom plates (21) are fixedly connected to the left side and the right side of the transmission support bases (4), and the slide rail vertical plates (28) are slidably connected to the left side and the right side of the top of the transmission support bases (4).

8. The adjustable tension unwinding structure for coating machine according to claim 4, characterized in that: The output end of the rear servo motor (29) is fixedly connected with a transmission roller (5), which is rotationally connected to the inner side of the rear bearing support block (27).

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