Gap adjusting structure for upper and lower compression rollers of coating head
By setting up a frame, cylinder, oblique block and motor-driven structure on the coating head, the precise adjustment of the gap between the upper and lower pressing rollers is achieved, solving the problems of poor adjustment stability and low accuracy in traditional structures, and improving the coating material Productivity and ease of operation.
Patent Information
- Application Number
- CN202323292487.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-04
AI Technical Summary
The traditional coating head gap adjustment structure has poor stability, time-consuming and laborious operation, and the accuracy cannot be accurately grasped, resulting in wasting raw materials and reducing yield.
The structure includes frame, cylinder, oblique block, motor, screw rod and plane roller bearing, and the gap adjustment of the upper and lower pressure rollers through the movement of the oblique block and the driving of the cylinder, the motor and transmission device are used to achieve precise adjustment to reduce sliding friction. Improve operational convenience and accuracy.
It significantly reduces the operating strength, improves the accuracy and repeatability of gap adjustment, improves the yield of the coating material, and ensures the accuracy and efficiency of the coating effect.
Smart Images
Figure CN222174616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coating head adjustment, in particular to a coating head upper and lower pressure roller gap adjustment structure. Background Art
[0002] The coating head is a structure that coats polymer melt and the like onto a substrate. The coating head has upper and lower pressure rollers. During use, the spacing between the upper and lower pressure rollers is adjusted according to actual needs, that is, the gap of the coating head is adjusted, so that the coating thickness can be adjusted.
[0003] When the traditional coating head gap adjustment structure is in use, the adjustment stability of the adjustment structure is poor and adjustment deviation is very likely to occur. It is necessary to repeatedly measure the thickness of the product and adjust the roller gap according to the thickness. This not only takes a long time to adjust to the required thickness value, but also because the upper and lower pressure rollers are heavy, the workers' operation is time-consuming and laborious, and the adjustment accuracy cannot be accurately grasped, which causes waste of raw materials and reduces the yield of finished products. Utility Model Content
[0004] In order to improve the convenience and accuracy of adjusting the gap between the upper and lower pressure rollers of the coating head and to improve the problem that the gap adjustment of the coating head is time-consuming, labor-intensive and the accuracy cannot be controlled, the present application provides a gap adjustment structure for the upper and lower pressure rollers of the coating head, which can significantly reduce the operating intensity of the staff, improve the accuracy and repeatability of the gap adjustment, and improve the yield rate of the coating material.
[0005] The gap adjustment structure of the upper and lower rollers of the coating head provided in this application adopts the following technical solution:
[0006] The upper and lower pressure roller gap adjustment structure of the coating head includes a frame, on which a cylinder is provided for driving the upper pressure roller to move up and down, and on which an inclined block is slidably provided between an upper bearing seat for mounting the upper pressure roller and a lower bearing seat for mounting the lower pressure roller, and on which a driving component is also provided for driving the inclined block to move toward or away from between the upper bearing seat and the lower bearing seat.
[0007] By adopting the above technical solution, on the one hand, the distance between the upper bearing seat of the upper pressure roller and the lower bearing seat of the lower pressure roller is adjusted by moving the inclined block, thereby adjusting the gap between the upper pressure roller and the lower pressure roller. On the other hand, by arranging a cylinder on the frame to drive the upper pressure roller to move, the gap adjustment is more accurate and the operation time is saved, the labor intensity of the workers is reduced, the product output yield is improved, and the coating effect is ensured.
[0008] In a specific implementation scheme, the drive assembly includes a motor mounted on a frame, a reducer is connected to the motor, a rotatable screw is provided on the frame, an output shaft of the motor is connected to the screw, and the screw is threadedly connected to the bevel block.
[0009] By adopting the above technical solution, the motor starts to drive the screw to rotate, thereby pushing the slider to move on the screw, thereby realizing the movement of the slider between the upper bearing seat of the upper pressure roller and the lower bearing seat of the lower pressure roller, thereby adjusting the gap between the upper pressure roller and the lower pressure roller.
[0010] In a specific possible implementation method, a slide rail is provided on the frame, a slider is provided on the slide rail, and the inclined block is installed on the slider.
[0011] By adopting the above technical solution, the inclined block is installed on the slider, so that the inclined block can move with the slider, reducing the friction between the slider and the lower bearing seat of the lower pressure roller during movement, thereby facilitating the control of the gap between the upper pressure roller and the lower pressure roller.
[0012] In a specific possible implementation manner, the inclined block is connected to a plane roller bearing, and the plane roller bearing abuts against an upper bearing seat for mounting an upper pressure roller.
[0013] By adopting the above technical solution, the sliding friction of the inclined block is reduced through the characteristics of the plane roller bearing itself, avoiding direct contact between the inclined block and the upper bearing seat, which would otherwise cause difficulty in adjustment due to excessive combined force, thereby improving the convenience of adjusting the gap between the upper and lower pressure rollers.
[0014] In a specific feasible implementation scheme, a driven bevel gear is installed at the end of the screw rod, a mounting plate is provided on the frame, a rotatable mounting rod is provided on the mounting plate, active bevel gears meshing with the driven bevel gear are provided at both ends of the mounting rod, and a power component for driving the mounting rod to rotate is also provided on the frame.
[0015] By adopting the above-mentioned technical solution, through the transmission cooperation of the driven bevel gear arranged on the screw rod and the active bevel gear on the mounting rod, the power assembly installed on the mounting rod drives the two screw rods to simultaneously adjust the distance between the upper bearing seat of the upper pressure roller and the lower bearing seat of the lower pressure roller, thereby achieving the purpose of adjusting the gap between the upper pressure roller and the lower pressure roller, making the gap adjustment more convenient.
[0016] In a specific possible implementation manner, the power assembly includes a rotary motor, and the rotary motor is mounted on a frame.
[0017] By adopting the above technical solution, the motor is turned on, and the two screws rotate simultaneously to drive the inclined block to move to the same position, thereby increasing the accuracy of the gap adjustment, and the overall adjustment is very convenient and easy to operate.
[0018] In a specific possible implementation manner, the power assembly includes a rotating handle arranged at the end of the mounting rod, and the frame is also provided with a locking assembly for locking the rotating handle.
[0019] By adopting the above technical solution, the mounting rod is driven to rotate by rotating the handle, thereby driving the two screws to rotate through the meshing active bevel gear and the driven bevel gear, and the two screws rotate and push the bevel block, so that the distance between the upper bearing seat of the upper pressure roller and the lower bearing seat of the lower pressure roller can meet the clearance requirements under different processing conditions. The rotation of the mounting rod is locked by the locking assembly, thereby determining the position of the bevel block and locking the clearance between the upper pressure roller and the lower pressure roller.
[0020] In a specific feasible implementation scheme, the locking assembly includes an L-shaped positioning block that is slidably connected to the frame, a positioning plate is provided on the frame, one end of the L-shaped positioning block is overlapped on the positioning plate, a spring is connected between the L-shaped positioning block and the positioning plate, and a locking rod for abutting the positioning plate is detachably inserted on the L-shaped positioning block; a limiting groove is provided on the outer peripheral side wall of the mounting rod, and a limiting piece for snapping into the limiting groove is provided on the L-shaped positioning block.
[0021] By adopting the above-mentioned technical scheme, the L-shaped positioning block is slid, the limit piece leaves the limit groove on the mounting rod, and the locking rod is inserted into the L-shaped positioning block and abuts against the positioning plate, so as to achieve the purpose of locking the movement of the L-shaped positioning block, thereby facilitating the staff to adjust the gap between the upper pressure roller and the lower pressure roller according to different processing conditions. After the adjustment is completed, the locking rod is pulled out, and the spring is reset to push the L-shaped positioning block to move, thereby making the limit piece snap into the limit groove, thereby locking the gap between the upper pressure roller and the lower pressure roller.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The present application enables the upper pressure roller to move precisely by moving the inclined block and applying pressure to the upper bearing seat of the upper pressure roller by the cylinder, thereby achieving precise adjustment of the gap between the upper pressure roller and the lower pressure roller.
[0024] 2. By arranging a plane roller bearing on the inclined block, the sliding friction of the inclined block is reduced by taking advantage of the characteristics of the plane roller bearing itself, avoiding direct contact between the inclined block and the upper bearing seat, thereby preventing the adjustment from being difficult due to excessive combined force, and improving the convenience of gap adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.
[0026] Figure 2 It is a side view of the overall structure of Example 1 of the present application.
[0027] Figure 3 yes Figure 2 Enlarged view of part A.
[0028] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application.
[0029] Figure 5 yes Figure 4 Enlarged view of part B.
[0030] Figure 6 Schematic diagram of the overall structure of Example 3 of the present application.
[0031] Figure 7 yes Figure 6 Magnified view of part C.
[0032] Explanation of the reference numerals in the accompanying drawings: 1. frame; 12. bearing seat slide rail; 121. special-shaped slider; 13. upper bearing seat; 14. lower bearing seat; 131. cylinder; 2. slide rail; 21. slider; 22. plane roller bearing; 23. fixing plate; 24. motor; 241. reducer; 31. screw rod; 40. inclined block; 41. sleeve; 43. mounting plate; 120. mounting rod; 123. active bevel gear; 124. driven bevel gear; 44. rotating motor; 125. limiting groove; 132. rotating handle; 127. slide bar; 133. L-shaped positioning block; 220. limiting member; 141. positioning plate; 221. spring; 232. locking rod; 60. upper pressure roller; 70. lower pressure roller. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-7 This application is described in further detail.
[0034] The embodiments of the present application disclose a structure for adjusting the gap between the upper and lower pressure rollers of a coating head.
[0035] Example 1
[0036] Reference Figure 1 and Figure 2 The upper and lower roller gap adjustment structure of the coating head includes a frame 1, on which two bearing seat slide rails 12 are vertically arranged, and special-shaped sliders 121 are arranged on the two bearing seat slide rails 12. The special-shaped sliders 121 are provided with an upper bearing seat 13 for installing the upper pressure roller 60, and the frame 1 is also provided with a lower bearing seat 14 for installing the lower pressure roller 70. The frame 1 is also provided with two cylinders 131, and the output shafts of the two cylinders 131 are respectively connected to the upper bearing seats 13 at both ends of the upper pressure roller 60, and the cylinders 131 respectively apply a constant pressure to the upper bearing seat 13, so that the upper bearing seat 13 pushes the special-shaped slider 121 to move up and down along the bearing seat slide rail 12, thereby moving the upper pressure roller 60 up and down.
[0037] Reference Figure 2 and Figure 3The lower bearing seat 14 is provided with a slide rail 2, a slider 21 is provided on the slide rail 2, an inclined block 40 is provided on the slider 21, a plane roller bearing 22 is connected to the inclined surface of the inclined block 40, and the plane roller bearing 22 abuts against the upper bearing seat 13. The lower bearing seat 14 is provided with a fixing plate 23, a motor 24 is installed on the fixing plate 23, a reducer 241 is provided on the motor 24, a screw rod 31 is connected to the output shaft of the motor 24, the screw rod 31 passes through the inclined block 40 and is installed on the fixing plate 23, a sleeve 41 is installed on the inclined block 40, the screw rod 31 passes through the sleeve 41 and is threadedly connected with the sleeve 41. The rotation of the screw rod 31 drives the sleeve 41 to move, the sleeve 41 pushes the inclined block 40, and the inclined block 40 moves on the slide rail 2 through the slider 21.
[0038] The implementation principle of Example 1 is as follows: first, the cylinder 131 is started to make the upper bearing seat 13 slide along the bearing seat slide rail 212 through the special-shaped slider 21 to a certain gap required for production. Then, the motor 24 is started, and the motor 24 drives the screw rod 31 to rotate, so that the sleeve 41 threadedly connected to the screw rod 31 pushes the inclined block 40, so that the inclined block 40 moves on the slide rail 2 through the slider 21 to adjust the gap between the upper and lower pressure rollers.
[0039] When it is necessary to increase the distance between the upper pressure roller 60 and the lower pressure roller 70, the motor 24 is started to drive the slider 21 to move, and then the plane roller bearing 22 on the inclined block 40 can push the upper bearing seat 13 to move upward, and at the same time reduce the pressure of the cylinder 131 on the upper bearing seat 13, so that the piston rod of the cylinder 131 moves upward under the push of the inclined block 40, thereby increasing the distance between the upper pressure roller 60 and the lower pressure roller 70; conversely, when it is necessary to reduce the distance between the upper pressure roller 60 and the lower pressure roller 70, the motor 24 is started to drive the slider 21 to move, and then the plane roller bearing 22 on the inclined block 40 can move in the direction of moving out of the gap between the upper pressure roller 60 and the lower pressure roller 70, and at the same time increase the pressure of the cylinder 131 on the upper bearing seat 13, so that the piston rod of the cylinder 131 pushes the upper pressure roller 60 to move downward, and with the help of the cooperation between the cylinder 131 and the inclined block 40, the precise adjustment of the distance between the upper pressure roller 60 and the lower pressure roller 70 is achieved.
[0040] Example 2
[0041] Reference Figure 4 and Figure 5The difference between this embodiment and the embodiment 1 is that two mounting plates 43 are arranged on the frame 1, and a mounting rod 120 is arranged through the mounting plates 43. The mounting rod 120 can rotate in the mounting plates 43, and two active bevel gears 123 are arranged on the mounting rod 120. A rotating motor 44 is arranged on the mounting plate 43, and the output shaft of the rotating motor 44 is connected to the mounting rod 120 to drive the mounting rod 20 to rotate. A driven bevel gear 124 is installed at the end of the screw rod 31, and the driven bevel gear 124 is meshed with the active bevel gear 123, so that after the rotating motor 44 is started, the screw rod 31 can be driven to rotate through the mounting rod 120, and then the inclined block 40 can be driven to move, so as to adjust the spacing between the upper pressure roller 60 and the lower pressure roller 70.
[0042] The implementation principle of Example 2 is: start the rotating motor 44, the rotating motor 44 drives the mounting rod 120 to rotate, and then the active bevel gear 123 drives the meshing driven bevel gear 124 to rotate, and then drives the screw rod 31 to rotate, and through the sleeve 41 threadedly connected on the screw rod 31, the inclined block 40 is pushed to move on the slide rail 2 through the slider 21, and then the distance between the upper bearing seat 13 of the upper pressure roller 60 and the lower bearing seat 14 of the lower pressure roller 70 is adjusted to adjust the gap between the upper pressure roller 60 and the lower pressure roller 70.
[0043] Example 3
[0044] Reference Figure 6 and Figure 7 The difference between this embodiment and embodiment 2 is that a plurality of limit grooves 125 are evenly provided on the outer peripheral side wall of the mounting rod 120, a rotating handle 132 is provided at the end of the mounting rod 120, a slide bar 127 is provided on the frame 1, an L-shaped positioning block 133 is provided on the frame 1, the L-shaped positioning block 133 is provided with a slide groove for the slide bar 127 to be inserted into, and a limit member 220 for inserting into the limit groove 125 is provided on the L-shaped positioning block 133. When the limit member 220 is inserted into the limit groove 125, the rotation of the mounting rod 120 can be limited.
[0045] A positioning plate 141 is also provided on the frame 1, one end of the L-shaped positioning block 133 is overlapped on the positioning plate 141, a spring 221 is connected between the L-shaped positioning block 133 and the positioning plate 141, and a through hole is opened on the L-shaped positioning block 133 and a locking rod 232 inserted into the through hole is provided.
[0046] The implementation principle of Example 3 is as follows: when the installation rod 120 needs to be rotated to adjust the spacing between the upper pressure roller 60 and the lower pressure roller 70, the locking rod 232 is pulled out, and then the L-shaped positioning block 133 is pulled to make the limiting member 220 disengage from the limiting groove 125. When the L-shaped positioning block 133 is pulled until the through hole is located on the side of the positioning plate 141 away from the spring 221, the locking rod 232 is inserted to make the locking rod 232 abut against the positioning plate 141, and the spring 221 contracts. After the spacing adjustment is completed, the locking rod 232 is pulled out, so that the spring 221 is reset and drives the L-shaped positioning block 133 to slide until the limiting member 220 on the L-shaped positioning block 133 is stuck in the limiting groove 125, so that the installation rod 120 stops rotating. At this time, the through hole is located on the side of the positioning plate facing the spring 221 , and the locking rod 232 is inserted so that the locking rod 232 abuts against the positioning plate 141 , and then the locking rod 232 enables the limiting member 220 to be stably inserted into the limiting groove 125 .
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. The gap adjustment structure between the upper and lower rollers of the coating head. It is characterized in that The invention comprises a frame (1), wherein the frame (1) is provided with a cylinder (131) for driving an upper pressure roller (60) to move up and down, and the frame (1) is provided with an inclined block (40) which is slidably disposed between an upper bearing seat (13) for mounting the upper pressure roller (60) and a lower bearing seat (14) for mounting the lower pressure roller (70), and the frame (1) is also provided with a driving component for driving the inclined block (40) to move toward between the upper bearing seat (13) and the lower bearing seat (14) or to move away from between the upper bearing seat (13) and the lower bearing seat (14).
2. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 1, It is characterized in that The driving assembly comprises a motor (24) mounted on a frame (1), a reducer (241) being connected to the motor (24), a rotatable screw rod (31) being arranged on the frame (1), an output shaft of the motor (24) being connected to the screw rod (31), and the screw rod (31) and the inclined block (40) being threadedly connected.
3. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 1, It is characterized in that A slide rail (2) is arranged on the frame (1), a slider (21) is arranged on the slide rail (2), and the inclined block (40) is mounted on the slider (21).
4. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 1, It is characterized in that The inclined block (40) is connected to a plane roller bearing (22), and the plane roller bearing (22) abuts against an upper bearing seat (13) for mounting an upper pressure roller (60).
5. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 2, It is characterized in that A driven bevel gear (124) is mounted on the end of the screw rod (31); a mounting plate (43) is disposed on the frame (1); a rotatable mounting rod (120) is disposed on the mounting plate (43); driving bevel gears (123) meshing with the driven bevel gear (124) are disposed at both ends of the mounting rod (120); and a power assembly for driving the mounting rod (120) to rotate is also disposed on the frame (1).
6. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 5, It is characterized in that The power assembly comprises a rotary motor (44), and the rotary motor (44) is mounted on the frame (1).
7. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 5, It is characterized in that The power assembly comprises a rotating handle (132) arranged at the end of the mounting rod (120), and the frame (1) is also provided with a locking assembly for locking the rotating handle (132).
8. The gap adjustment structure between the upper and lower rollers of the coating head according to claim 7, It is characterized in that The locking assembly comprises an L-shaped positioning block (133) slidably connected to the frame (1); a positioning plate (141) is arranged on the frame (1); one end of the L-shaped positioning block (133) is overlapped on the positioning plate (141); a spring (221) is connected between the L-shaped positioning block (133) and the positioning plate (141); a locking rod (232) for abutting against the positioning plate (141) is detachably inserted on the L-shaped positioning block (133); a limiting groove (125) is provided on the outer peripheral side wall of the mounting rod (120); and a limiting member (220) for snapping into the limiting groove (125) is provided on the L-shaped positioning block (133).