Weld joint positioning mechanism of gravure roller

Abstract

The utility model relates to the technical field of gravure roller machining, in particular to a welding seam positioning mechanism of a gravure roller, which comprises a positioning table, the positioning table is provided with a rolling module and an identification module, and the rolling module comprises a driving wheel and a driven wheel which are arranged at an interval; the recognition module comprises a photographing lens mounted at the top of the positioning table, the photographing lens is longitudinally arranged, and the photographing direction of the photographing lens faces the gravure roller; the gravure roller needing gap welding is placed in the rolling module, the gravure roller is supported by the driving wheel and the driven wheel in a rolling mode, then the driving wheel rotates, is in rolling fit with the gravure roller, increases friction force and is matched with the driven wheel to enable the gravure roller to rotate, and meanwhile the photographing lens located on the positioning table continuously photographs. When the weld joint of the gravure roller is positioned right above the photographing lens and is photographed, the driving wheel stops rotating; at the moment, other transfer mechanisms can clamp the gravure roller, for example, when the gravure roller is clamped by the left side and the right side, the gravure roller does not make contact with a welding gap, and it is guaranteed that the gravure roller is prevented from deforming during transfer.

Description

Technical Field

[0001] This utility model relates to the field of gravure roller processing technology, and in particular to a weld seam positioning mechanism for gravure rollers. Background Technology

[0002] Gravure rollers are commonly used coating production fixtures that smoothly and evenly coat products with coatings. They are suitable for various coating processes, including direct gravure coating, reverse gravure coating, and reverse roller coating. The main parameters of gravure rollers include mesh count and aperture depth. Mesh count is a measure of material particle size or fineness, referring to the number of holes in a 1-inch (25.4 mm) segment of the screen, reflecting the particle size of the material. The higher the mesh count, the finer the particles. The aperture depth on the surface of the gravure roller determines the amount of coating material it can carry. These parameters are all related to the manufacturing process of the gravure roller, affecting not only coating efficiency but also directly determining coating quality. Furthermore, gravure rollers with the same parameters can produce different defects in different coating processes. To ensure coating quality, in coating production, especially precision coating, gravure rollers are generally specialized rollers, with different parameters used for different processes.

[0003] Gravure roller processing involves winding iron sheets into a roller-shaped structure. After winding, gaps need to be eliminated by welding to form a one-piece structure. Before welding, the pre-formed gravure roller is clamped and transferred to the corresponding work station for processing using a fixture. During the transfer, the fixture may clamp onto the gaps, causing the gravure roller to deform. Utility Model Content

[0004] The purpose of this invention is to provide a weld seam positioning mechanism for gravure rollers, addressing the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] The gravure roller weld positioning mechanism includes a positioning platform, which is equipped with a rolling module and an identification module. The rolling module includes a drive wheel and a driven wheel arranged at intervals. The drive wheel and the driven wheel provide rolling support for the gravure roller. Both the drive wheel and the driven wheel include a rotatable wheel body and a rubber sleeve fitted on the wheel body. The rubber sleeve is in rolling cooperation with the gravure roller. The identification module includes a camera lens installed on the top of the positioning platform. The camera lens is arranged longitudinally and the camera lens is pointing towards the gravure roller.

[0007] Furthermore, the rolling module also includes a rolling support for mounting the driving wheel and the driven wheel. The rolling support has upright side guide plates on both sides, and a pair of parallel and spaced driving shafts and driven shafts are installed between the two side guide plates.

[0008] Furthermore: the drive shaft is used to mount the drive wheel, and the driven shaft is used to mount the driven wheel.

[0009] Furthermore: the side guide plate is formed with longitudinally arranged mounting grooves, the top of which has an opening, and the drive shaft is detachably mounted in the mounting groove.

[0010] Furthermore: bearing housings are installed at both ends of the drive shaft, the bearing housings are formed with first connecting holes, and the side guide plate is formed with second connecting holes that are coaxially aligned with the first connecting holes. The bearing housings and the side guide plate are connected through the first connecting holes and the second connecting holes.

[0011] Furthermore, the positioning stage is also equipped with a rotation drive component that drives the drive wheel to rotate. The rotation drive component includes a motor base, on which a drive motor is mounted, and the drive motor is connected to the drive shaft for transmission.

[0012] Furthermore: the positioning stage has a driven cavity formed inside, the motor base is installed in the driven cavity of the positioning stage, the motor base is also equipped with a reducer that is connected to the drive end of the drive motor, the drive end of the reducer is equipped with a driving synchronous pulley, the drive shaft is coaxially equipped with a driven synchronous pulley that is vertically aligned with the driving synchronous pulley, a transmission belt is sleeved between the driving synchronous pulley and the driven synchronous pulley, and the top of the positioning stage is formed with a transmission groove for the transmission belt to pass through.

[0013] Furthermore: There are two rolling modules, which are arranged in parallel and spaced apart. The two rolling modules are installed on the top of the positioning platform with the two rolling modules aligned laterally. The rotation drive is connected to the drive wheel of one of the rolling modules.

[0014] Furthermore, the identification module is located between the two rolling modules, and the identification module also includes an identification mount for mounting the camera lens, which can move up and down above the positioning platform.

[0015] Furthermore: the positioning platform is formed with a lifting groove, and a lifting electric cylinder installed in the drive cavity is provided at the bottom of the lifting groove. The body of the lifting electric cylinder is installed at the bottom of the lifting groove, the drive end of the lifting electric cylinder passes through the lifting groove, and the drive end of the lifting electric cylinder is connected to the identification seat.

[0016] The beneficial effects of this utility model are as follows: The gravure roller requiring seam welding is placed into the rolling module, where the driving wheel and driven wheel provide rolling support. The driving wheel then rotates, and through the rubber sleeve, it rolls with the gravure roller to increase friction. This, combined with the driven wheel, causes the gravure roller to rotate. Simultaneously, the camera lens on the positioning platform continuously takes pictures until the weld seam of the gravure roller is captured directly above the camera lens, at which point the driving wheel stops rotating. At this point, the remaining transfer mechanisms can clamp the gravure roller, for example, when clamping the gravure roller from the left or right sides, without contacting the weld seam, thus preventing deformation of the gravure roller during transfer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the weld positioning mechanism.

[0018] Figure 2 This is a schematic diagram of the weld positioning mechanism from another perspective, which hides the gravure roller.

[0019] Figure 3 This is a partial exploded structural diagram of the weld positioning mechanism.

[0020] The reference numerals in the figures include:

[0021] 1-Positioning stage,

[0022] 11-Identification module, 12-Identification base, 13-Photo capture lens, 14-Lifting slot, 15-Lifting electric cylinder

[0023] 16-Driven roller, 17-Driven roller, 18-Glue-coated sleeve, 19-Gravure roller

[0024] 2-Rolling module,

[0025] 21-Rolling support seat, 22-Side guide plate, 23-Drive shaft, 24-Driven shaft, 25-Mounting groove

[0026] 26-Bearing housing, 27-First connecting hole, 28-Second connecting hole

[0027] 3- Rotation drive component,

[0028] 31-Drive cavity, 32-Motor mount, 33-Drive motor, 34-Reducer, 35-Drive synchronous pulley

[0029] 36-Transmission groove, 37-Driven synchronous pulley, 38-Transmission belt. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings.

[0031] like Figure 1-3 As shown, the weld seam positioning mechanism of the gravure roller includes a positioning platform 1. The positioning platform 1 is provided with a rolling module 2 and an identification module 11. The rolling module 2 includes a driving wheel 16 and a driven wheel 17 arranged at intervals. The driving wheel 16 and the driven wheel 17 provide rolling support for the gravure roller 19. Both the driving wheel 16 and the driven wheel 17 include a rotatable wheel body and a rubber sleeve 18 fitted on the wheel body. The rubber sleeve 18 rolls in cooperation with the gravure roller 19. The identification module 11 includes a camera lens 13 installed on the top of the positioning platform 1. The camera lens 13 is arranged longitudinally, and the camera lens 13 takes pictures facing the gravure roller 19.

[0032] The gravure roller 19, which requires seam welding, is placed into the rolling module 2. The driving wheel 16 and the driven wheel 17 support the gravure roller 19 by rolling. Then, the driving wheel 16 rotates and rolls with the gravure roller 19 through the rubber sleeve 18 to increase friction. It works with the driven wheel 17 to make the gravure roller 19 rotate. At the same time, the camera lens 13 located on the positioning platform 1 takes pictures continuously until the weld seam of the gravure roller 19 is photographed directly above the camera lens 13. At this time, the driving wheel 16 stops rotating. At this time, the other transfer mechanisms can clamp the gravure roller 19. For example, when the gravure roller 19 is clamped on the left and right sides, it will not come into contact with the weld seam, thus preventing the gravure roller 19 from deforming during transfer.

[0033] Specifically, the recognition module 11 is located between the two rolling modules 2. The recognition module 11 also includes a recognition seat 12 for mounting the camera lens 13. The recognition seat 12 can move up and down above the positioning table 1. The positioning table 1 is formed with a lifting groove 14. A lifting cylinder 15 is installed at the bottom of the lifting groove 14 and mounted in the drive cavity 31. The body of the lifting cylinder 15 is mounted at the bottom of the lifting groove 14, and the drive end of the lifting cylinder 15 passes through the lifting groove 14 and is connected to the recognition seat 12. Under the lifting drive of the lifting cylinder 15, the recognition seat 12 with the camera lens 13 can move up and down; it can accommodate gravure rollers 19 with different outer diameters, so that the camera lens 13 can approach or move away from the rolling gravure roller 19, making it easier to capture and record gaps more clearly and to identify gaps.

[0034] Furthermore, the rolling module 2 also includes a rolling support base 21 for mounting the drive wheel 16 and the driven wheel 17. Upright side guide plates 22 are mounted on both sides of the rolling support base 21, and a pair of parallel, spaced-apart drive shafts 23 and 24 are mounted between the two side guide plates 22. The drive shaft 23 is used to mount the drive wheel 16, and the driven shaft 24 is used to mount the driven wheel 17. The drive wheel 16 and the driven wheel 17 are spaced apart, forming a space for placing the gravure roller 19. The gravure roller 19 simultaneously contacts both the drive wheel 16 and the driven wheel 17. When the drive wheel 16 rotates, the driven wheel 17 also rotates synchronously, achieving rolling support for the gravure roller 19. Since both the drive wheel 16 and the driven wheel 17 are fitted with rubber sleeves 18, friction is increased during rolling support, making it less likely for the gravure roller 19 to slip.

[0035] The side guide plate 22 has longitudinally arranged mounting grooves 25 with openings at the top. The drive shaft 23 is detachably mounted in the mounting grooves 25. Bearing seats 26 are mounted at both ends of the drive shaft 23. The bearing seats 26 have first connecting holes 27, and the side guide plate 22 has second connecting holes 28 coaxially aligned with the first connecting holes 27. The bearing seats 26 and the side guide plate 22 are connected by screws inserted into the first connecting holes 27 and the second connecting holes 28. The drive shaft 23 and the bearing seats 26 form an integral structure. When the size of the drive wheel 16 is not suitable, the drive wheel 16 can be disassembled and replaced by removing the bearing seats 26 from the side guide plate 22 with screws, so as to be suitable for gravure rollers 19 of different sizes.

[0036] The positioning stage 1 is also equipped with a rotation drive 3 that drives the drive wheel 16 to rotate. The rotation drive 3 includes a motor base 32, on which a drive motor 33 is mounted. The drive motor 33 is connected to the drive shaft 23. The drive motor 33 can drive the drive wheel 16 to rotate, so that the gravure roller 19 placed in the rolling module 2 can rotate, so that the camera lens 13 of the recognition module 11 can continuously take pictures to identify the welding gap.

[0037] Preferably, the positioning stage 1 has a drive cavity 31 formed inside. The motor base 32 is installed in the drive cavity 31 of the positioning stage 1. The motor base 32 also has a reducer 34 that is connected to the drive end of the drive motor 33. The drive end of the reducer 34 has a drive synchronous pulley 35. The drive shaft 23 has a driven synchronous pulley 37 that is vertically aligned with the drive synchronous pulley 35. A transmission belt 38 is sleeved between the drive synchronous pulley 35 and the driven synchronous pulley 37. The top of the positioning stage 1 has a transmission groove 36 for the transmission belt 38 to pass through. The drive motor 33, in conjunction with the reducer 34, drives the drive synchronous pulley 35 to rotate. Under the action of the transmission belt 38, the driven synchronous pulley 37 installed on the drive shaft 23 rotates synchronously, realizing the rotation of the drive shaft 23. Thus, the drive motor 33 can drive the drive wheel 16 to rotate, and the rolling module 2 can provide rolling support for the gravure roller 19.

[0038] Preferably, there are two rolling modules 2, which are arranged in parallel and spaced apart. The two rolling modules 2 are installed on the top of the positioning table 1 with their sides aligned laterally. The rotation drive 3 is connected to the drive wheel 16 of one of the rolling modules 2. With the cooperation of the two rolling modules 2, the gravure roller 19 can be positioned laterally above the positioning table 1, providing stable rolling support for the gravure roller 19.

[0039] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A weld seam positioning mechanism for gravure rollers, comprising a positioning table, the positioning table being equipped with a rolling module and an identification module, characterized in that: The rolling module includes a drive wheel and a driven wheel arranged at intervals. The drive wheel and the driven wheel provide rolling support for the gravure roller. Both the drive wheel and the driven wheel include a rotatable wheel body and a rubber sleeve fitted on the wheel body. The rubber sleeve is in rolling cooperation with the gravure roller. The recognition module includes a camera lens mounted on the top of the positioning stage. The camera lens is arranged vertically and its shooting direction is towards the gravure roller.

2. The weld seam positioning mechanism of the gravure roller according to claim 1, characterized in that: The rolling module also includes a rolling support for mounting the driving wheel and the driven wheel. Upright side guide plates are mounted on both sides of the rolling support, and a pair of parallel and spaced driving shafts and driven shafts are mounted between the two side guide plates.

3. The weld seam positioning mechanism of the gravure roller according to claim 2, characterized in that: The drive shaft is used to mount the drive wheel, and the driven shaft is used to mount the driven wheel.

4. The weld seam positioning mechanism of the gravure roller according to claim 3, characterized in that: The side guide plate is formed with a longitudinally arranged mounting groove, the top of which has an opening, and the drive shaft is detachably mounted in the mounting groove.

5. The weld seam positioning mechanism of the gravure roller according to claim 4, characterized in that: The drive shaft is equipped with bearing seats at both ends. The bearing seats are formed with first connecting holes, and the side guide plate is formed with second connecting holes that are coaxially aligned with the first connecting holes. The bearing seats and the side guide plate are connected through the first connecting holes and the second connecting holes.

6. The weld seam positioning mechanism of the gravure roller according to claim 5, characterized in that: The positioning platform is also equipped with a rotation drive component that drives the drive wheel to rotate. The rotation drive component includes a motor base, on which a drive motor is mounted, and the drive motor is connected to the drive shaft for transmission.

7. The weld seam positioning mechanism of the gravure roller according to claim 6, characterized in that: The positioning platform has a drive cavity formed inside. The motor base is installed in the drive cavity of the positioning platform. The motor base is also equipped with a reducer that is connected to the drive end of the drive motor. The drive end of the reducer is equipped with an active synchronous pulley. The active shaft is coaxially equipped with a driven synchronous pulley that is vertically aligned with the active synchronous pulley. A transmission belt is sleeved between the active synchronous pulley and the driven synchronous pulley. The top of the positioning platform is formed with a transmission groove for the transmission belt to pass through.

8. The weld seam positioning mechanism of the gravure roller according to claim 7, characterized in that: The number of the rolling modules is two, and the two rolling modules are arranged in parallel and spaced apart. The two rolling modules are installed on the top of the positioning platform with the two rolling modules aligned laterally. The rotation drive is connected to the drive wheel of one of the rolling modules.

9. The weld seam positioning mechanism of the gravure roller according to claim 8, characterized in that: The identification module is located between two rolling modules. The identification module also includes an identification seat for mounting a camera lens, which can move up and down above the positioning platform.

10. The weld seam positioning mechanism of the gravure roller according to claim 9, characterized in that: The positioning platform is formed with a lifting groove, and a lifting electric cylinder installed in the drive cavity is provided at the bottom of the lifting groove. The body of the lifting electric cylinder is installed at the bottom of the lifting groove, the drive end of the lifting electric cylinder passes through the lifting groove, and the drive end of the lifting electric cylinder is connected to the identification seat.

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