Chain transmission mechanism, unwinding and winding device for coating machine and coating machine

Abstract

This utility model discloses a chain drive mechanism, a winding and unwinding device for a coating machine, and a coating machine, relating to the field of coating equipment technology. The chain drive mechanism includes a central shaft, a first winding assembly, and a second winding assembly. The central shaft extends along a first direction; the first winding assembly includes a first winding shaft and a first winding motor, wherein a first winding chain is sleeved between the first winding shaft and the central shaft, and a first transmission chain is sleeved between the first winding motor and the central shaft. The second winding assembly includes a second winding shaft and a second winding motor, wherein a second winding chain is sleeved between the second winding shaft and the central shaft, and a second transmission chain is sleeved between the second winding motor and the central shaft. By employing the technology provided by this utility model, the problem of excessive noise during high-speed winding operations is solved.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, specifically to a chain drive mechanism, a winding and unwinding device for a coating machine, and a coating machine. Background Technology

[0002] In coating equipment, the take-up AB shaft is a key component for achieving uniform and efficient material winding. It winds the coated material into a roll at a certain tension and speed, allowing the coating machine to perform continuous coating and winding operations during production. Currently, to reduce noise during the winding process, the drive device for the take-up AB shaft is mainly a synchronous belt drive, which drives the unwinding and take-up shafts to rotate via the synchronous belt. For example, Chinese Utility Model Patent Document 1 (CN212101151U) discloses a back-mounted take-up device for a coating machine, which includes a frame, a power take-up shaft, a support shaft, a synchronous belt, and a back-mounted automatic roll changing device. Its rotary table and drive motor are connected and driven by the synchronous belt.

[0003] While the aforementioned synchronous belt drive method can achieve low-noise transmission, the synchronous belt is a "one-piece" unit, meaning it connects all shafts as a continuous, indivisible whole. This makes replacement and repair extremely difficult when the synchronous belt is damaged, especially in complex mechanisms. Based on this, Chinese Utility Model Patent Document 2 (CN210682619U) discloses an auxiliary mechanism for a coating winding machine and the coating winding machine itself. This mechanism uses a chain for transmission and includes a chain tensioning device to adjust chain tension. However, this method still generates significant noise when the winding shaft (such as winding shaft A or winding shaft B) rotates at high speeds. Utility Model Content

[0004] This utility model provides a chain drive mechanism, a winding and unwinding device for a coating machine, and a coating machine to solve the problems of difficult maintenance of synchronous belt drives and high noise during winding operations in the prior art.

[0005] To solve the above-mentioned technical problems, in a first aspect, the technical solution adopted by this utility model is to provide a chain drive mechanism, which includes: a central shaft, a first winding assembly, and a second winding assembly.

[0006] The central shaft extends along a first direction; the first winding assembly includes a first winding shaft and a first winding motor, wherein the first winding shaft and the central shaft are fitted with a first winding chain, and the first winding motor and the central shaft are fitted with a first transmission chain.

[0007] The second winding assembly includes a second winding shaft and a second winding motor, wherein the second winding shaft is fitted with a second winding chain and the central shaft, and the second winding motor is fitted with a second transmission chain and the central shaft.

[0008] The beneficial effects of the technical solution provided by this utility model compared to the prior art are as follows:

[0009] The winding operation of axis A is achieved by using a first winding chain as the transmission medium between the first winding shaft and the central shaft, and a first transmission chain as the transmission medium between the first winding motor and the central shaft; the winding operation of axis B is achieved by using a second winding chain as the transmission medium between the second winding shaft and the central shaft, and a second transmission chain as the transmission medium between the second winding motor and the central shaft.

[0010] The first winding chain and the first drive chain are connected to the central shaft to achieve multi-stage chain drive for winding axis A. The second winding chain and the second drive chain are connected to the central shaft to achieve multi-stage chain drive for winding axis B. This design can disperse energy during transmission and reduce noise. Moreover, compared with synchronous belt drives, chain drives are easier to replace when damaged. With the above layout, only the damaged single-stage chain needs to be replaced.

[0011] In some embodiments, a central transmission sleeve is provided at one end of the central shaft along the first direction. The central transmission sleeve includes an inner ring and an outer ring, wherein the first transmission chain meshes with the outer ring of the central transmission sleeve and rotates thereon; and the second transmission chain meshes with the inner ring of the central transmission sleeve.

[0012] By adopting the above technical solution, the power distribution between the first transmission chain and the second transmission chain can be realized through the double-layer structure of the inner and outer rings of the central transmission sleeve.

[0013] In some implementations, the first take-up chain, and / or the first drive chain, and / or the second take-up chain, and / or the second drive chain are timing chains.

[0014] A timing chain is a precision transmission chain whose core function is to accurately transmit power in a mechanical system and strictly maintain the synchronous motion relationship between two or more rotating parts. It is primarily used in the transmission of automobile engines. By employing the above-mentioned technical solution, using a timing chain from automobile engines in the transmission of the aforementioned winding AB shaft effectively utilizes the high precision and high strength characteristics of the timing chain. This allows for high-precision meshing with the first and second winding motors to achieve a high torque effect. This high-precision meshing effectively reduces impact and vibration between the chain and sprockets, further reducing noise. The high-strength timing chain also effectively prevents slippage or tooth skipping during high-speed operation, thereby reducing noise during high-speed rotation.

[0015] In some implementations, the first take-up shaft and the second take-up shaft are arranged on both sides of the central shaft along a second direction, and the first take-up motor and the second take-up motor are located on the same side of the central shaft along a third direction.

[0016] By adopting the above technical solution, the transmission mechanism is arranged on the same side to enhance space utilization, concentrate the noise source, and facilitate maintenance personnel to carry out inspection and operation.

[0017] In some embodiments, the chain drive mechanism further includes a first idler wheel and a second idler wheel, the first idler wheel being located between the first winding motor and the central shaft, and the second idler wheel being located between the second winding motor and the central shaft.

[0018] In some embodiments, the chain drive mechanism further includes a third idler wheel and a fourth idler wheel, the third idler wheel being located between the first take-up shaft and the central shaft, and the fourth idler wheel being located between the second take-up shaft and the central shaft.

[0019] By adopting the above technical solution, a first idler wheel, a second idler wheel, a third idler wheel, and a fourth idler wheel are added to support and guide the chain, reduce excessive friction between the chain and the sprockets (transmission parts such as the central drive sleeve, the first winding motor, and the second winding motor), and suppress vibration to further reduce noise during the winding operation.

[0020] In a second aspect, this application also provides a take-up and unwinding device for a coating machine, including the aforementioned transmission mechanism and frame. The frame includes a frame back plate, a material transfer section, and a fixing section protruding from the frame back plate. The central shaft of the transmission mechanism passes through the material transfer section and the fixing section sequentially along a first direction, and a first take-up shaft and a second take-up shaft pass through the material transfer section.

[0021] Using the above technical solution, the winding and unwinding device for the coating machine includes all the functions of the aforementioned transmission mechanism, which will not be elaborated here. Meanwhile, the frame includes a frame back plate, a material transfer section, and a fixing section, integrating the main components of the transmission mechanism on one side of the frame, facilitating maintenance and replacement by personnel, and also enabling the concentration of noise sources.

[0022] In some implementations, the first winding motor and the second winding motor are disposed on the fixed part and on the same side of the central shaft, wherein the fixed part is provided with a transmission chamber, and the output ends of the first winding motor and the second winding motor are located in the transmission chamber.

[0023] By adopting the above technical solution, while fixing the motor through the fixing part, the transmission chamber can protect the motor output end, as well as the first and second transmission chains, and suppress noise transmission.

[0024] In some embodiments, a base foot is provided on the side of the frame away from the central axis, and the base foot is located at one end of the first take-up motor and the second take-up motor. By adopting the above technical solution, the base foot is added to fix the side where the motor is located, thereby enhancing the load-bearing capacity and structural stability of one side of the frame.

[0025] In a third aspect, this application also provides a coating machine, including the aforementioned unwinding and winding device for a coating machine. By adopting the above technical solution, the coating machine possesses all the technical effects of the aforementioned unwinding and winding device for a coating machine, which will not be elaborated upon here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0027] Figure 1 This is a connection diagram of an embodiment of the chain drive mechanism provided by this utility model. Figure 1 ;

[0028] Figure 2 This is a connection diagram of an embodiment of a chain drive mechanism provided by this utility model;

[0029] Figure 3 This is a partial schematic diagram of an embodiment of a chain drive mechanism provided by this utility model;

[0030] Figure 4 This is a three-dimensional structural schematic diagram of an embodiment of the central transmission sleeve of a chain drive mechanism provided by this utility model;

[0031] Figure 5 This is a partial three-dimensional structural schematic diagram of an embodiment of a chain drive mechanism provided by this utility model;

[0032] Figure 6 This is a three-dimensional structural diagram of an embodiment of a winding and unwinding device for a coating machine provided by this utility model. Figure 1 ;

[0033] Figure 7 This is a partial three-dimensional structural schematic diagram of an embodiment of a winding and unwinding device for a coating machine provided by this utility model;

[0034] Figure 8 This is a partial three-dimensional structural schematic diagram of an embodiment of a winding and unwinding device for a coating machine provided by this utility model.

[0035] In the picture:

[0036] 10. Central shaft; 11. Central drive sleeve; 110. Inner ring; 111. Outer ring; 20. First winding assembly; 21. First winding shaft; 22. First winding motor; 23. First drive chain; 24. First winding chain;

[0037] 30. Second winding assembly; 31. Second winding shaft; 32. Second winding motor; 33. Second drive chain; 34. Second winding chain;

[0038] 41. First idler wheel; 42. Second idler wheel; 43. Third idler wheel; 44. Fourth idler wheel; 50. Frame; 51. Frame back plate; 52. Transfer section; 53. Fixing section; 530. Transmission chamber; 54. Base foot. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0040] To facilitate subsequent descriptions, this application will first combine the chain drive mechanism, the winding and unwinding device for the coating machine, and the specific structure of the coating machine before describing them. Figure 1 Define the first direction (X) and the second direction (Z); combine Figure 2 A third direction (Y) is defined. The first direction is the length direction of the chain drive mechanism when it is normally positioned, such as the X direction; the second direction is the height direction of the chain drive mechanism when it is normally positioned, such as the Z direction; and the third direction is the width direction of the chain drive mechanism when it is normally positioned, such as the Y direction. In this application, the first direction (X), the second direction (Z), and the third direction (Y) are perpendicular to each other.

[0041] It is understood that the mutual perpendicularity in this application is not absolute perpendicularity. Approximate perpendicularity due to processing errors and assembly errors (e.g., the included angle between two structural features is 89.9°) is also within the scope of mutual perpendicularity in this application.

[0042] See Figures 1 to 2 As shown, Figure 1 A connection diagram of an embodiment of a chain drive mechanism provided in this application is shown. Figure 1 ; Figure 2 A connection diagram of an embodiment of a chain drive mechanism provided in this application is shown. Figure 2 .

[0043] In a first aspect, the chain drive mechanism includes: a central shaft 10, a first winding assembly 20, and a second winding assembly 30. The central shaft 10 extends along a first direction; the first winding assembly 20 includes a first winding shaft 21 and a first winding motor 22, wherein the first winding shaft 21 is fitted with a first winding chain 24 on the central shaft 10, and the first winding motor 22 is fitted with a first transmission chain 23 on the central shaft 10. The second winding assembly 30 includes a second winding shaft 31 and a second winding motor 32, wherein the second winding shaft 31 is fitted with a second winding chain 34 on the central shaft 10, and the second winding motor 32 is fitted with a second transmission chain 33 on the central shaft 10.

[0044] In this embodiment of the application, combined with Figure 1 As shown, the winding operation of axis A is realized by using the first winding chain 24 as the transmission medium between the first winding shaft 21 and the central shaft 10, and the first transmission chain 23 as the transmission medium between the first winding motor 22 and the central shaft 10; the winding operation of axis B is realized by using the second winding chain 34 as the transmission medium between the second winding shaft 31 and the central shaft 10, and the second transmission chain 33 as the transmission medium between the second winding motor 32 and the central shaft 10.

[0045] The first winding chain 24 and the first transmission chain 23 are connected to the central shaft 10 to achieve multi-stage chain drive for the winding A shaft. Similarly, the second winding chain 34 and the second transmission chain 33 are connected to the central shaft 10 to achieve multi-stage chain drive for the winding B shaft. This design effectively disperses energy during transmission and reduces noise. Furthermore, chain drives are easier to replace when damaged compared to synchronous belt drives; with this layout, only the damaged chain needs to be replaced. In some applications, the winding A shaft and the winding B shaft operate in a dual-station, alternating manner.

[0046] In some implementations, the first take-up chain 24, the first drive chain 23, the second take-up chain 34, and the second drive chain 33 are timing chains. A timing chain is a precision drive chain whose core function is to accurately transmit power in a mechanical system and strictly maintain the synchronous motion relationship between two or more rotating parts. It is mainly used in the transmission of automobile engines.

[0047] In this embodiment, a timing chain used in automotive engines is used in the transmission of the aforementioned take-up AB shaft. This effectively utilizes the high precision and strength of the timing chain, enabling it to mesh precisely with the first take-up motor 22 and the second take-up motor 32 to achieve a high torque effect. This high-precision meshing effectively reduces impact and vibration between the chain and sprockets, further reducing noise. The high-strength timing chain also effectively prevents slippage or tooth skipping during high-speed operation, thereby reducing noise during high-speed rotation. Exemplarily, one or more of the first take-up chain 24, the first drive chain 23, the second take-up chain 34, and the second drive chain 33 can be replaced with a timing chain; this application does not limit this.

[0048] In some implementation schemes, combined Figure 1 and Figure 2 As shown, the first take-up shaft 21 and the second take-up shaft 31 are arranged on both sides of the central shaft 10 along the second direction, and the first take-up motor 22 and the second take-up motor 32 are located on the same side of the central shaft 10 along the third direction. In this embodiment, by arranging the transmission mechanism (the first take-up motor 22 and the second take-up motor 32) on the same side, the space utilization is enhanced, the noise source is concentrated, and maintenance personnel can easily carry out inspection and operation.

[0049] See Figure 3 and Figure 4 As shown, Figure 3 A partial schematic diagram of an embodiment of a chain drive mechanism provided in this application is shown; Figure 4 A three-dimensional structural schematic diagram of an embodiment of the central transmission sleeve 11 of a chain drive mechanism provided in this application is shown.

[0050] In some implementation schemes, combined Figure 1 and Figure 3 As shown, a central transmission sleeve 11 is provided at one end of the central shaft 10 along the first direction. The central transmission sleeve 11 includes an inner ring 110 and an outer ring 111. The first transmission chain 23 meshes with the outer ring 111 of the central transmission sleeve 11 and rotates thereon. The second transmission chain 33 meshes with the inner ring 110 of the central transmission sleeve 11.

[0051] In this embodiment, the double-layer structure of the inner ring 110 and outer ring 111 of the central transmission sleeve 11 enables power distribution between the first transmission chain 23 and the second transmission chain 33. Figure 3 As shown, the operation process is distinguished between the first take-up shaft 21 and the second take-up shaft 31.

[0052] See Figure 5 As shown, Figure 5A partial perspective structural schematic diagram of an embodiment of a chain drive mechanism provided in this application is shown; wherein, the shielding parts (such as the fixing part 53) have been partially hidden.

[0053] In some embodiments, the chain drive mechanism further includes a first idler pulley 41 and a second idler pulley 42, the first idler pulley 41 being located between the first take-up motor 22 and the central shaft 10, and the second idler pulley 42 being located between the second take-up motor 32 and the central shaft 10. The chain drive mechanism also includes a third idler pulley 43 and a fourth idler pulley 44, the third idler pulley 43 being located between the first take-up shaft 21 and the central shaft 10, and the fourth idler pulley 44 being located between the second take-up shaft 31 and the central shaft 10.

[0054] In this embodiment, a first idler wheel 41, a second idler wheel 42, a third idler wheel 43, and a fourth idler wheel 44 are added to support and guide the chain, reduce excessive friction between the chain and the sprockets (transmission parts such as the central drive sleeve 11, the first winding motor 22, and the second winding motor 32), and suppress vibration to further reduce noise during the winding operation.

[0055] See Figure 6 As shown, Figure 6 This application provides a three-dimensional structural schematic diagram of an embodiment of a take-up and unwinding device for a coating machine. Figure 1 .

[0056] In a second aspect, this application also provides a take-up and unwinding device for a coating machine, including the aforementioned transmission mechanism and frame 50. The frame 50 includes a frame back plate 51, a material transfer section 52, and a fixing section 53 protruding from the frame back plate 51. The central shaft 10 of the transmission mechanism passes through the material transfer section 52 and the fixing section 53 sequentially along a first direction, and the first take-up shaft 21 and the second take-up shaft 31 pass through the material transfer section 52.

[0057] In this embodiment, the winding and unwinding device for the coating machine includes all the functions of the aforementioned transmission mechanism, which will not be elaborated here. Meanwhile, the frame 50 includes a frame back plate 51, a material transfer section 52, and a fixing section 53, integrating the main components of the transmission mechanism on one side of the frame 50, facilitating maintenance and replacement by personnel, and also enabling the concentration of noise sources.

[0058] For example, the first winding motor 22 and the second winding motor 32 are disposed on the fixing part 53 and on the same side of the central shaft 10. Wherein, combined with Figure 7 As shown, Figure 7This illustration shows a partial perspective view of an embodiment of a take-up and unwinding device for a coating machine provided in this application. The fixing part 53 is provided with a transmission chamber 530, and the output ends of the first take-up motor 22 and the second take-up motor 32 are located within the transmission chamber 530. This further isolates the noise sources of the first take-up motor 22 and the second take-up motor 32, which are located on the same side, suppresses noise propagation, and protects the first transmission chain 23 and the second transmission chain 33.

[0059] See Figure 8 As shown, Figure 8 This application provides a three-dimensional structural schematic diagram of an embodiment of a take-up and unwinding device for a coating machine. Figure 2 .

[0060] In some embodiments, a base foot 54 is provided on the side of the frame 50 away from the central axis 10, and the base foot 54 is located at one end of the first take-up motor 22 and the second take-up motor 32. In this embodiment, the base foot 54 is added to fix the side where the motor is located, thereby enhancing the load-bearing capacity and structural stability of one side of the frame 50.

[0061] In a third aspect, this application also provides a coating machine, including the aforementioned unwinding and winding device for a coating machine. In the embodiments of this application, the coating machine possesses all the technical effects of the aforementioned unwinding and winding device for a coating machine, which will not be elaborated upon here.

[0062] 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, should be included within the protection scope of this utility model.

Claims

1. A chain drive mechanism, characterized by, include: A central axis extending along a first direction; The first winding assembly includes a first winding shaft and a first winding motor, wherein the first winding shaft is sleeved with a first winding chain on the central shaft, and the first winding motor is sleeved with a first transmission chain on the central shaft; The second winding assembly includes a second winding shaft and a second winding motor, wherein the second winding shaft is fitted with a second winding chain and the central shaft, and the second winding motor is fitted with a second transmission chain and the central shaft.

2. A chain drive as claimed in claim 1, characterised in that A central transmission sleeve is provided at one end of the central shaft along the first direction. The central transmission sleeve includes an inner ring and an outer ring. The first transmission chain meshes with the outer ring of the central transmission sleeve and rotates thereon. The second transmission chain meshes with the inner ring of the central transmission sleeve.

3. A chain drive according to any one of claims 1 to 2, characterised in that, The first winding chain, and / or the first drive chain, and / or the second winding chain, and / or the second drive chain are timing chains.

4. The chain drive mechanism of claim 1, wherein, The first take-up shaft and the second take-up shaft are arranged on both sides of the central shaft along the second direction, and the first take-up motor and the second take-up motor are located on the same side of the central shaft along the third direction.

5. The chain drive mechanism according to claim 1 or 2, characterized in that, The chain drive mechanism further includes a first idler wheel and a second idler wheel, wherein the first idler wheel is located between the first winding motor and the central shaft, and the second idler wheel is located between the second winding motor and the central shaft.

6. The chain drive mechanism according to claim 1 or 2, characterized in that, The chain drive mechanism further includes a third idler wheel and a fourth idler wheel. The third idler wheel is located between the first take-up shaft and the central shaft, and the fourth idler wheel is located between the second take-up shaft and the central shaft.

7. A winding and unwinding device for a coating machine, characterized in that, The invention includes the chain drive mechanism and frame as described in any one of claims 1 to 6, wherein the frame includes a frame back plate, a material transfer section and a fixing section protruding from the frame back plate, wherein the central shaft of the drive mechanism passes through the material transfer section and the fixing section sequentially along a first direction, and the first winding shaft and the second winding shaft pass through the material transfer section.

8. The unwinding and rewinding device for a coating machine according to claim 7, characterized in that, The first winding motor and the second winding motor are disposed on the fixed part and on the same side of the central shaft. The fixed part is provided with a transmission chamber, and the output ends of the first winding motor and the second winding motor are located in the transmission chamber.

9. A winding and unwinding device for a coating machine according to claim 8, characterized in that, The frame is provided with a base foot on the side away from the central axis, and the base foot is located at one end of the first winding motor and the second winding motor.

10. A coating machine, characterized in that, Includes the unwinding and rewinding device for a coating machine as described in any one of claims 7 to 9.

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