A take-out device for a rotating shaft of a film laminating machine

Abstract

The utility model relates to a kind of take-out device for laminating machine rotating shaft, including chassis, take-out assembly, lifting device and sliding device;Sliding device is set on chassis;Lifting device is set on sliding device, and sliding device limits the sliding path of at least a part of lifting device;Take-out assembly is set on lifting device, and lifting device limits the lifting distance of at least a part of take-out assembly;Take-out assembly includes support, support piece and clamping piece;Support is set on lifting device;Support piece and clamping piece are all installed on support, and clamping piece is located above support piece, solve the technical problem that existing technology laminating machine rotating shaft take-out device cannot adapt to non-gas expansion type ordinary precision rotating shaft, and device can only be linearly pulled along axial direction, lack active clamping mechanism to rotating shaft, when rotating shaft and bearing block exist cooperation resistance, it is easy to cause rotating shaft deflection due to uneven force, and further damage the precision structure of shaft end.

Description

Technical Field

[0001] This utility model relates to the field of coating machines, and in particular to a removal device for the rotating shaft of a coating machine. Background Technology

[0002] Replacing the shaft is a common but crucial task in the daily maintenance and repair of coating machines. Coating machine shafts are generally heavy, have precise installation positions, and operate in limited space. The convenience and safety of removing them directly affect the efficiency and cost of equipment maintenance. However, the current dedicated shaft removal equipment in the industry still has technical shortcomings. Chinese utility model patent CN202023298543.6 discloses a floor-mounted shaft pulling and unloading device for a coating machine. This device achieves shaft pulling through a linear guide rail and a T-shaped screw drive structure on a support base, and releases the constraint by utilizing the air-expanding shaft's air release characteristics. Although it can reduce the labor intensity of manual hoisting and has anti-backward protection functions, it has obvious limitations in application: its core design is designed for air-expanding shaft unloading scenarios after winding, and relies on the air-expanding shaft's own retractable characteristics for positioning. It cannot be adapted to ordinary precision rotating shafts that are not air-expanding. Furthermore, the device can only pull straight along the axial direction and lacks an active clamping mechanism for the rotating shaft. When there is resistance between the rotating shaft and the bearing seat, uneven force can easily cause the rotating shaft to deflect, thereby damaging the precision structure at the shaft end. Utility Model Content

[0003] This application provides a removal device for the shaft of a coating machine, which solves the technical problems of existing removal devices for the shaft of a coating machine that cannot be adapted to ordinary precision shafts that are not air-expanded, and that the device can only perform linear removal along the axial direction, lacking an active clamping mechanism for the shaft. When there is resistance between the shaft and the bearing seat, uneven force can easily cause the shaft to deflect, thereby damaging the precision structure at the shaft end.

[0004] The technical solution adopted in this application is as follows.

[0005] A removal device for a rotating shaft of a coating machine includes a base frame, a removal assembly, a lifting device, and a sliding device. The sliding device is mounted on the base frame. The lifting device is mounted on the sliding device and defines at least a portion of the sliding path of the lifting device. The removal assembly is mounted on the lifting device and defines at least a portion of the lifting distance of the removal assembly. The removal assembly includes a bracket, a support member, and a clamping member. The bracket is mounted on the lifting device. The support member and the clamping member are both mounted on the bracket, and the clamping member is located above the support member. The support member includes a drive wheel and a support wheel. The clamping member includes a clamping wheel.

[0006] As a further improvement to the above technical solution: A further technical solution is as follows: the support component further includes a first support base, a second support base, and a first motor; both the first support base and the second support base are installed at the bottom end of the bracket; the first motor is installed on the first support base; the drive wheel is rotatably connected to the first support base and is connected to the output shaft of the first motor; the support wheel is rotatably connected to the second support base, and the drive wheel and the support wheel are at the same height.

[0007] A further technical solution is as follows: the clamping component further includes a movable frame, a first slider, a first slide rail, and a cylinder; the clamping wheels are rotatably connected to the movable frame, and there are two sets of clamping wheels arranged symmetrically; the first slider is disposed at both ends of the movable frame; the first slide rail is disposed on the support; the first slider is slidably connected to the first slide rail; the cylinder is disposed at the top of the support, and the cylinder piston rod is connected to the movable frame.

[0008] A further technical solution is as follows: the lifting device includes a connecting block, a second slider, a second slide rail, a lead screw, a mounting frame, and a second motor; the mounting frame is disposed on the sliding device, and the sliding device defines at least a portion of the sliding path of the mounting frame; the lead screw is rotatably connected to the mounting frame; the connecting block is threadedly connected to the lead screw; the bracket is connected to the connecting block; the second slider is disposed on the bracket; the second slide rail is disposed on the mounting frame; the second slider is slidably connected to the second slide rail; the second motor is mounted on the top of the mounting frame, and the output shaft of the second motor is drively connected to the lead screw.

[0009] A further technical solution is as follows: the sliding device includes a moving plate, a third slider, a third slide rail, a gear, a rack, and a third motor; the mounting frame is mounted on the moving plate; the third slider is disposed at both ends of the moving plate; the third slide rail is disposed at both ends of the base frame; the third slider is slidably connected to the third slide rail; the third motor is mounted on the moving plate, and the output shaft of the third motor is connected to the gear; the gear is meshed with the rack; the rack is disposed on the base frame.

[0010] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The drive wheel and support wheel of the support component, together with the clamping wheel of the clamping component, form a synergistic clamping structure. This eliminates the need to rely on the shaft's own contraction characteristics, enabling stable clamping of ordinary precision shafts that are not air-expanded. Specifically, the drive wheel and support wheel of the support component are fixed to the bottom of the bracket via a first support base and a second support base, with their tops at the same horizontal level, forming the lower support surface supporting the shaft. The two sets of clamping wheels of the clamping component are symmetrically installed below the moving frame. Driven by a cylinder, the moving frame descends along the first slide rail, applying uniform pressure from above the shaft. This, combined with the lower support surface, creates a stable fixing effect of "upper and lower clamping, left and right limiting." This structure can adapt to shafts of different specifications, breaking the limitation of traditional devices that are only suitable for air-expanded shafts. It broadens the applicable scenarios of the equipment, meeting the removal needs of shafts from various coating machines, without requiring the design of special tools for different shaft types.

[0011] 2. Because the clamping and supporting components cooperate to form a "three-point clamping" structure, the rotating shaft can be subjected to uniform circumferential force, avoiding deformation caused by local stress concentration. On the other hand, the first motor of the supporting component can drive the drive wheel to rotate, providing the rotating shaft with axial rotational driving force. Combined with the axial tension of the sliding device, the rotating shaft rotates and moves axially simultaneously during the removal process, converting the sliding friction between the rotating shaft and the bearing seat into rolling friction, significantly reducing the resistance to the fit. At the same time, the sliding device, through the sliding cooperation of the third slider and the third slide rail, ensures that the moving plate drives the lifting device, the removal component, and the rotating shaft to move linearly along the axial direction. The lifting device, through the cooperation of the second slider and the second slide rail, ensures the verticality of the bracket driving the rotating shaft during the lifting process. The double guide structure avoids the generation of eccentric torque, completely solving the problem of rotating shaft skew and damage to the precision structure of the shaft end caused by uneven force application in traditional devices. In addition, the drive wheel, support wheel, and clamping wheel are all made of materials that are both wear-resistant and elastic. When they come into contact with the shaft surface, they can form a buffer to avoid scratches and indentations caused by hard friction. This effectively protects the cylindricity and surface roughness of the shaft, ensures the subsequent fitting accuracy between the shaft and the bearing housing, and reduces secondary repairs caused by shaft end damage.

[0012] 3. In terms of safety, the device completely replaces manual operation through a mechanized structure. The coordinated clamping of the support and clamping components ensures that the rotating shaft remains stable and free from the risk of falling during removal and transport. Operators only need to control the movement of each component through the electrical control system, without needing to approach the area under the heavy object or the stress zone, completely eliminating safety accidents such as crushing and crushing injuries, and minimizing operational safety risks. In terms of efficiency, only one operator is needed to complete all operations: the sliding device is adjusted to a horizontal position by the third motor, and the lead screw of the lifting device is rotated by the second motor, driving the connecting block and the bracket to rise and fall, achieving precise alignment of the removal component and the rotating shaft; after clamping, the first and third motors are started to complete the rotational release and axial transport of the rotating shaft. Compared with traditional manual operation, efficiency is greatly improved, and equipment maintenance downtime is significantly reduced. In terms of cost, mechanized operation reduces manpower input and lowers labor costs; at the same time, it avoids shaft misalignment damage and surface scratches, reducing shaft scrap rate and bearing housing maintenance costs; in addition, the equipment structure is stable, the replacement cycle of vulnerable parts such as drive wheels and clamping wheels is long, and the subsequent maintenance cost is low, resulting in outstanding overall economic benefits. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a removal device for the rotating shaft of a coating machine according to the present invention.

[0014] Figure 2 This is a partial structural diagram illustrating the extraction component in this utility model.

[0015] Figure 3 This is a partial structural diagram illustrating the support component in this utility model.

[0016] Figure 4 This is a partial structural diagram illustrating the clamping component in this utility model.

[0017] Figure 5 This is a partial structural diagram illustrating the lifting device in this utility model. Figure 6 This is a partial structural diagram illustrating the sliding device in this utility model. In the diagram: 1. Base frame; 2. Take-out component; 21. Bracket; 22. Support component; 221. Drive wheel; 222. Support wheel; 223. First support seat; 224. Second support seat; 225. First motor; 23. Clamping component; 231. Clamping wheel; 232. Moving frame; 233. First slider; 234. First slide rail; 235. Cylinder; 3. Lifting device; 31. Connecting block; 32. Second slider; 33. Second slide rail; 34. Lead screw; 35. Mounting frame; 36. Second motor; 4. Sliding device; 41. Moving plate; 42. Third slider; 43. Third slide rail; 44. Gear; 45. Rack; 46. Third motor. Detailed Implementation

[0018] This application provides a removal device for the shaft of a coating machine, which solves the technical problems of existing removal devices for the shaft of a coating machine that cannot be adapted to ordinary precision shafts that are not air-expanded, and that the device can only perform linear removal along the axial direction and lacks an active clamping mechanism for the shaft. When there is resistance between the shaft and the bearing seat, uneven force can easily cause the shaft to deflect, thereby damaging the precision structure at the shaft end.

[0019] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows: To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] A device for removing the shaft of a coating machine, such as Figures 1-6 As shown, It includes a base frame 1, a take-out component 2, a lifting device 3, and a sliding device 4. The base frame 1 serves as the foundation platform for the entire device, providing stable support and installation foundation for other components.

[0021] The sliding device 4 is mounted on the base frame 1. Specifically, the sliding device 4 includes a moving plate 41, a third slider 42, a third slide rail 43, a gear 44, a rack 45, and a third motor 46. Two third slide rails 43 are fixed parallel to each other on both sides of the base frame 1. The bottom ends of both ends of the moving plate 41 are fixed with third sliders 42, which slide in cooperation with the third slide rails 43. The third motor 46 is mounted on the moving plate 41 via a motor mount, and its output shaft is connected to the gear 44. The rack 45 is fixedly mounted on the base frame 1 and meshes with the gear 44. When the third motor 46 is started, it drives the gear 44 to rotate, thereby driving the entire moving plate 41 and all its components to move horizontally precisely and smoothly along the direction of the rack 45.

[0022] The lifting device 3 is mounted on the moving plate 41 of the sliding device 4. Specifically, the lifting device 3 includes a connecting block 31, a second slider 32, a second slide rail 33, a lead screw 34, a mounting frame 35, and a second motor 36. The mounting frame 35 is a gantry frame, with its bottom fixedly mounted on the moving plate 41. The lead screw 34 is vertically rotatably connected to the mounting frame 35 via a bearing seat. The second motor 36 is fixed to the top of the mounting frame 35, and its output shaft is connected to the lead screw 34 via a coupling. The connecting block 31 has a threaded hole in the middle that mates with the lead screw 34, forming a threaded pair with the lead screw 34. The second slide rail 33 is vertically fixed to the mounting frame 35, while the second slider 32 is fixed to the bracket 21 of the take-out assembly 2 and is slidably connected to the second slide rail 33. When the second motor 36 rotates forward and backward, it drives the lead screw 34 to rotate, thereby causing the connecting block 31 and the bracket 21 fixed thereto to make precise lifting and lowering movements along the second slide rail 33.

[0023] The extraction component 2 is mounted on the connecting block 31 of the lifting device 3 and is the core component that directly performs the task of extracting the rotating shaft. The extraction component 2 includes a bracket 21, a support member 22, and a clamping member 23.

[0024] The bracket 21 is fixedly connected to the connecting block 31 of the lifting device 3.

[0025] Support member 22 is installed at the bottom end of bracket 21 and includes a first support base 223, a second support base 224, a first motor 225, a drive wheel 221, and a support wheel 222. The first support base 223 and the second support base 224 are fixed side by side to the bottom of bracket 21. The first motor 225 is mounted on the first support base 223, and its output shaft is connected to the drive wheel 221, which can directly drive the drive wheel 221 to rotate. The support wheel 222 is rotatably connected to the second support base 224 through a bearing. The tops of the drive wheel 221 and the support wheel 222 are at the same horizontal height, together forming a V-shaped or concave support surface for supporting the rotating shaft.

[0026] The clamping member 23 is located above the support member 22 and includes a movable frame 232, a first slider 233, a first slide rail 234, a cylinder 235, and two sets of clamping wheels 231. The first slide rail 234 is vertically fixed to the bracket 21. The movable frame 232 has first sliders 233 at both ends, which are slidably connected to the first slide rail 234. The cylinder 235 is fixed to the top of the bracket 21, and its piston rod is connected downward to the movable frame 232. The two sets of clamping wheels 231 are symmetrically rotatably connected to the lower part of the movable frame 232 through bearings. When the piston rod of the cylinder 235 extends or retracts, it can drive the movable frame 232 and the clamping wheels 231 to descend or rise along the first slide rail 234, thereby clamping or releasing the rotating shaft supported by the support wheels.

[0027] The working principle of the removal device for the rotating shaft of the coating machine of this utility model is as follows: Positioning and Clamping: The operator controls the third motor 46 of the sliding device 4 and the second motor 36 of the lifting device 3 to drive the entire removal assembly 2 to move directly below the rotating shaft to be replaced on the coating machine. After adjusting the height, the drive wheel 221 and support wheel 222 of the support member 22 securely support the rotating shaft. Then, the cylinder 235 of the clamping member 23 is activated, pushing the moving frame 232 downward, so that the two sets of clamping wheels 231 press the rotating shaft from above, forming a stable "three-point clamping" to ensure that the rotating shaft will not roll or deviate during the movement.

[0028] Removal Operation: After the shaft is reliably clamped, the first motor 225 of the support member 22 is activated, driving the drive wheel 221 to rotate. Due to the friction between the drive wheel 221 and the shaft, and the clamping action of the clamping wheel 231, the shaft will rotate under the drive of the drive wheel 221. At the same time, the third motor 46 of the sliding device 4 is activated, causing the entire device to smoothly move the clamped shaft out of the equipment along its axial direction. The rotational movement of the shaft combined with the horizontal movement of the device simulates the action of "rotating and pulling out," which can effectively overcome static friction, prevent the shaft from jamming with the bearing seat, and achieve easy and smooth removal.

[0029] Removal and Placement: After the shaft has been completely removed, operate the lifting device 3 to lower it to a suitable height, then move the entire device to a safe area, and finally release the clamping member 23 to remove the shaft. The process of installing a new shaft is the reverse, and the same device can be used to accurately and effortlessly insert it.

[0030] Beneficial effects 1. The drive wheel 221 and support wheel 222 of the support member, together with the clamping wheel 231 of the clamping member, form a cooperative clamping structure. This eliminates the need to rely on the shaft's own contraction characteristics, enabling stable clamping of non-air-expanding ordinary precision shafts. Specifically, the drive wheel 221 and support wheel 222 of the support member are fixed to the bottom of the bracket 21 via the first support base 223 and the second support base 224, with their tops at the same horizontal level, forming the lower support surface for the shaft. The two sets of clamping wheels 231 of the clamping member are symmetrically installed below the moving frame 232. Driven by the cylinder 235, the moving frame 232 descends along the first slide rail 234, applying uniform pressure from above the shaft. This, combined with the lower support surface, creates a stable fixing effect of "upper and lower clamping, left and right limiting." This structure can adapt to shafts of different specifications, breaking the limitation of traditional devices that are only suitable for air-expanding shafts. It broadens the applicable scenarios of the equipment, meeting the removal needs of shafts from various coating machines, without requiring the design of special tools for different shaft types.

[0031] 2. Because the clamping member 23 and the support member 22 cooperate to form a "three-point clamping" structure, the rotating shaft can be subjected to uniform force in the circumference, avoiding deformation of the rotating shaft caused by local stress concentration. On the other hand, the first motor 225 of the support member can drive the drive wheel 221 to rotate, providing the rotating shaft with axial rotational driving force. Combined with the axial pulling force of the sliding device, the rotating shaft can rotate and move axially at the same time during the removal process, converting the sliding friction between the rotating shaft and the bearing seat into rolling friction, greatly reducing the cooperation resistance. At the same time, the sliding device ensures that the moving plate 41 drives the lifting device 3, the removal component 2 and the rotating shaft to move linearly along the axial direction through the sliding cooperation of the third slider 42 and the third slide rail 43. The lifting device ensures the verticality of the bracket 21 driving the rotating shaft to lift and lower through the cooperation of the second slider 32 and the second slide rail 33. The double guide structure avoids the generation of eccentric torque and completely solves the problem of the rotating shaft being skewed and the precision structure of the shaft end being damaged due to uneven force application in traditional devices. In addition, the drive wheel 221, support wheel 222, and clamping wheel 231 are all made of materials that are both wear-resistant and elastic. When they come into contact with the surface of the shaft, they can form a buffer to avoid scratches and indentations caused by hard friction. This effectively protects the cylindricity and surface roughness of the shaft, ensures the subsequent fitting accuracy between the shaft and the bearing seat, and reduces secondary repairs caused by shaft end damage.

[0032] 3. In terms of safety, the device completely replaces manual operation through a mechanized structure. The coordinated clamping of the support component 22 and the clamping component 23 ensures that the rotating shaft will not loosen or fall during removal and transportation. Operators only need to control the movement of each component through the electrical control system, without needing to approach the area under the heavy object or the stress zone, completely eliminating safety accidents such as squeezing and crushing, and minimizing operational safety risks. In terms of efficiency, only one operator is needed to complete all operations: the sliding device 4 is adjusted to a horizontal position by driving the third motor 46, and the lead screw 34 of the lifting device 3 is rotated by the second motor 36, which drives the connecting block 31 and the bracket 21 to rise and fall, achieving precise alignment between the removal component 2 and the rotating shaft; after clamping, the first motor 225 and the third motor 46 are started to complete the rotational release and axial transportation of the rotating shaft. Compared with traditional manual operation, efficiency is greatly improved, and equipment maintenance downtime is significantly shortened. In terms of cost, mechanized operation reduces manpower input and lowers labor costs; at the same time, it avoids shaft misalignment damage and surface scratches, reducing shaft scrap rate and bearing housing maintenance costs; in addition, the equipment structure is stable, the replacement cycle of vulnerable parts such as drive wheel 221 and clamping wheel 231 is long, the subsequent maintenance cost is low, and the overall economic benefits are outstanding.

[0033] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for removing the rotating shaft of a coating machine, characterized in that, The assembly includes a base frame (1), a take-out component (2), a lifting device (3), and a sliding device (4); the sliding device (4) is mounted on the base frame (1); the lifting device (3) is mounted on the sliding device (4), and the sliding device (4) defines at least a portion of the sliding path of the lifting device (3); the take-out component (2) is mounted on the lifting device (3), and the lifting device (3) defines at least a portion of the lifting distance of the take-out component (2); the take-out component (2) includes a bracket (21), a support member (22), and a clamping member (23); the bracket (21) is mounted on the lifting device (3); the support member (22) and the clamping member (23) are both mounted on the bracket (21), and the clamping member (23) is located above the support member (22); the support member (22) includes a drive wheel (221) and a support wheel (222); the clamping member (23) includes a clamping wheel (231).

2. The removal device for the rotating shaft of the coating machine as described in claim 1, characterized in that, The support member (22) further includes a first support base (223), a second support base (224), and a first motor (225); the first support base (223) and the second support base (224) are both installed at the bottom of the bracket (21); the first motor (225) is installed on the first support base (223); the drive wheel (221) is rotatably connected to the first support base (223), and the drive wheel (221) is connected to the output shaft of the first motor (225); the support wheel (222) is rotatably connected to the second support base (224), and the drive wheel (221) and the support wheel (222) are at the same height.

3. The removal device for the rotating shaft of the coating machine as described in claim 2, characterized in that, The clamping component (23) further includes a movable frame (232), a first slider (233), a first slide rail (234), and a cylinder (235); the clamping wheel (231) is rotatably connected to the movable frame (232), and there are two sets of clamping wheels (231) arranged symmetrically; the first slider (233) is located at both ends of the movable frame (232); the first slide rail (234) is located on the support (21); the first slider (233) is slidably connected to the first slide rail (234); the cylinder (235) is located at the top of the support (21), and the piston rod of the cylinder (235) is connected to the movable frame (232).

4. The removal device for the rotating shaft of the coating machine as described in claim 1, characterized in that, The lifting device (3) includes a connecting block (31), a second slider (32), a second slide rail (33), a lead screw (34), a mounting bracket (35), and a second motor (36); the mounting bracket (35) is disposed on the sliding device (4), and the sliding device (4) defines at least a portion of the sliding path of the mounting bracket (35); the lead screw (34) is rotatably connected to the mounting bracket (35); the connecting block (31) is threadedly connected to the lead screw (34); the bracket (21) is connected to the connecting block (31); the second slider (32) is disposed on the bracket (21); the second slide rail (33) is disposed on the mounting bracket (35); the second slider (32) is slidably connected to the second slide rail (33); the second motor (36) is mounted on the top of the mounting bracket (35), and the output shaft of the second motor (36) is drivenly connected to the lead screw (34).

5. The removal device for the rotating shaft of the coating machine as described in claim 4, characterized in that, The sliding device (4) includes a moving plate (41), a third slider (42), a third slide rail (43), a gear (44), a rack (45), and a third motor (46); the mounting bracket (35) is mounted on the moving plate (41); the third slider (42) is disposed at both ends of the moving plate (41); the third slide rail (43) is disposed at both ends of the base frame (1); the third slider (42) is slidably connected to the third slide rail (43); the third motor (46) is mounted on the moving plate (41), and the output shaft of the third motor (46) is connected to the gear (44); the gear (44) is meshed with the rack (45); the rack (45) is disposed on the base frame (1).

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