Automatic rubber strip pasting equipment for grinding discs

Abstract

The present invention discloses an automatic glue strip pasting device for a grinding disc, which includes a frame, a turntable rotatably positioned on the frame for positioning a splicing material tray, a turntable driving device for driving the rotation of the turntable, a glue bucket for supplying glue, a dispensing head communicated with the glue for discharging glue, a dispensing driving device for driving the dispensing head to move in the radial and longitudinal directions of the turntable, a flocking strip material tray positioning device for rotatably positioning a flocking strip material tray, a flocking strip feeding device for feeding the flocking strip forward, a flocking strip feeding driving device for driving the flocking strip feeding device to move in the radial and longitudinal directions of the turntable, a flocking strip pressing device for pressing the flocking strip at the opening of the annular groove of the splicing material tray into the groove, a flocking strip pressing driving device for driving the flocking strip pressing device to vibrate up and down, a flocking strip scissors for cutting the flocking strip, a flocking strip scissors driving device for driving the opening and closing of the flocking strip scissors, and a control system. The present invention realizes efficient flocking of the grinding disc, saves labor, and improves the quality of the finished product.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding disc manufacturing, and particularly to an automatic flocking strip pasting device for grinding discs. Background Art

[0002] The flocked grinding disc is used for grinding and polishing the surface of products. When producing the flocked grinding disc, it is necessary to stick the flocking strips into the annular grooves of the splicing material tray. Since the circumferences of the annular grooves in each circle of the splicing material tray are different, the lengths of the required flocking strips are also different, and the thickness of the flocking strips should be slightly greater than the width of the annular grooves of the splicing material tray to ensure that after the flocking strips are stuck, the surface of the grinding disc is completely covered with flocking, avoiding the appearance of bald spots or bald strips without flocking.

[0003] Currently, the work of sticking flocking strips on the flocked grinding disc is all carried out manually. Workers squeeze glue into the annular grooves of the splicing material tray, and then insert the flocking strips into the annular grooves of the splicing material tray. After a circle of annular grooves is filled with flocking strips, the flocking strips are cut off and continue to be inserted into the next circle. After the inserted flocking strips are pressed flat by workers with their hands, the flocking strips are inserted smoothly into the annular grooves of the splicing material tray.

[0004] The above-mentioned manual method of sticking flocking strips has the following defects:

[0005] 1. It consumes a lot of labor, has extremely low production efficiency, and high production costs;

[0006] 2. During the process of manually sticking flocking strips, hands are used to press the flocking strips to press them into the annular grooves of the splicing material tray. It is difficult to ensure that the pressing depth of the flocking strips is consistent, often resulting in inconsistent flocking heights on the surface of the final flocked grinding disc, which affects the grinding and polishing;

[0007] 3. During the process of sticking flocking strips, the flocking strips are cut by workers with scissors, and the cut incisions are not straight, resulting in differences in the splicing of the flocking strips in each circle of annular grooves, easily causing concave points, bald spots, etc. on the surface of the flocked grinding disc;

[0008] 4. When manually applying glue, it is difficult to control the amount of glue applied, and problems such as glue overflow are likely to occur;

[0009] 5. During the manual operation process, it is also easy to cause the flocked surface to be contaminated with dirt. Summary of the Invention

[0010] In order to overcome the above defects, the present invention provides an automatic flocking strip pasting device for grinding discs, which realizes the full-automatic pasting of flocking strips on the grinding disc, has high pasting efficiency, high quality of the finished grinding disc, and saves labor.

[0011] Technical solution adopted by the present invention to solve its technical problems: An automatic glue strip pasting device for a grinding disc, comprising a frame, a turntable, a turntable driving device, a glue bucket, a dispensing head, a dispensing driving device, a flocked strip material tray positioning device, a flocked strip feeding device, a flocked strip feeding driving device, a flocked strip pressing device, a flocked strip pressing driving device, a flocked strip scissors, a flocked strip scissors driving device and a control system. The turntable is rotatably mounted on the frame around a vertical axis. A splicing material tray positioning device is provided on the turntable, and the splicing material tray positioning device can fixedly position the splicing material tray on the turntable. The turntable driving device drives the turntable to rotate. The glue bucket is fixedly mounted on the frame, and the glue bucket is connected to the dispensing head through a pipeline. The glue bucket supplies glue to the dispensing head. The dispensing head is mounted on the frame so as to be able to move radially and longitudinally along the turntable in a horizontal plane. The dispensing driving device drives the dispensing head to move. A dispensing nozzle is provided on the dispensing head, and the dispensing nozzle can be inserted into an annular groove on the surface of the splicing material tray on the turntable and discharge glue. The flocked strip material tray is rotatably mounted on the flocked strip material tray positioning device. The flocked strip feeding device is mounted on the frame so as to be able to move radially and longitudinally along the turntable in a horizontal plane. The flocked strip feeding driving device drives the flocked strip feeding device to move in the horizontal and longitudinal directions. The flocked strip feeding device can send the flocked strips on the flocked strip material tray to the annular groove of the splicing material tray in a fixed length. The flocked strip pressing device is mounted on the flocked strip feeding device so as to be able to reciprocate longitudinally. The flocked strip pressing device can strike the upper side of the flocked strip located at the opening of the annular groove of the splicing material tray. The flocked strip pressing driving device drives the flocked strip pressing device to move. The flocked strip scissors are mounted on the flocked strip feeding device, and the flocked strip scissors can cut off the flocked strip when closed. The flocked strip scissors driving device drives the flocked strip scissors to open and close. The control system controls the start and stop actions of the turntable driving device, the glue bucket, the dispensing driving device, the flocked strip feeding device, the flocked strip feeding driving device, the flocked strip pressing driving device and the flocked strip scissors driving device.

[0012] As a further improvement of the present invention, the frame comprises a horizontal tabletop and a truss fixed on the horizontal tabletop. A horizontal linear guide rail extending radially along the turntable is provided on the truss. A left slider and a right slider are respectively slidably provided on the horizontal linear guide rail. A left vertical guide rail and a right vertical guide rail extending longitudinally are respectively provided on the left slider and the right slider. A left mounting plate is slidably provided on the left vertical guide rail, and a right mounting plate is slidably provided on the right vertical guide rail. The dispensing head is mounted on the left mounting plate, and the flocked strip feeding device is mounted on the right mounting plate. The dispensing driving device comprises a left horizontal driving device and a left longitudinal driving device. The flocked strip feeding driving device comprises a right horizontal driving device and a right longitudinal driving device. The left horizontal driving device and the right horizontal driving device respectively drive the left slider and the right slider to move horizontally. The left longitudinal driving device and the right longitudinal driving device respectively drive the left mounting plate and the right mounting plate to move up and down.

[0013] As a further improvement of the present invention, an imaging device, a horizontal adjustment block and a horizontal adjustment driving device are further provided. The imaging device is fixedly installed on the left slider. The imaging device can image the annular groove on the splicing tray and transmit signals to the control system. The horizontal adjustment block is installed on the left mounting plate so as to be able to slide horizontally along the direction extending perpendicular to the horizontal linear guide rail. The horizontal adjustment driving device drives the horizontal adjustment block to move. The dispensing head is fixedly installed on the horizontal adjustment block, and the control system controls the operation of the horizontal adjustment driving device.

[0014] As a further improvement of the present invention, the flocking strip feeding device includes a driving feeding roller, a feeding pressure roller and a feeding servo motor. The driving feeding roller and the feeding pressure roller are respectively rotatably installed on the right mounting plate. The flocking strip can be tightly clamped between the driving feeding roller and the feeding pressure roller. The feeding servo motor is fixedly installed on the right mounting plate, and the feeding servo motor drives the driving feeding roller to rotate.

[0015] As a further improvement of the present invention, a flocking strip guiding channel is further provided on the flocking strip feeding device. The flocking strip drawn from the flocking strip tray can slide linearly along the flocking strip guiding channel.

[0016] As a further improvement of the present invention, the flocking strip pressing driving device includes a pressing motor, an eccentric wheel and a connecting rod. The eccentric wheel is rotatably installed on the right mounting plate. The pressing motor drives the eccentric wheel to rotate. The upper end of the connecting rod is hinged to the eccentric rotating shaft on the eccentric wheel, and the lower end of the connecting rod is hinged to the flocking strip pressing device.

[0017] As a further improvement of the present invention, a longitudinally extending pressing linear guide rail and a pressing limit stop block are further fixedly provided on the right mounting plate. The flocking strip pressing driving device further includes a pressing slider. The pressing slider is installed on the pressing linear guide rail so as to be able to slide longitudinally. The flocking strip pressing device is a roller rotatably installed on the pressing slider around a horizontal rotating shaft. The outer circumferential surface of the roller can press the flocking strip on the annular groove of the splicing tray, and the pressing slider stops on the upper side surface of the pressing limit stop block.

[0018] As a further improvement of the present invention, the splicing tray positioning device includes side pressing blocks and an intermediate pressing block. A positioning material groove for placing the splicing tray is formed on the turntable. At least two side pressing blocks are spaced apart and installed on the upper side edge of the turntable. Each side pressing block can press the upper side edge of the splicing tray in the positioning material groove. The intermediate pressing block can be detachably and fixedly installed at the center of the turntable, and the edge of the intermediate pressing block can press the inner ring edge of the splicing tray in the positioning material groove.

[0019] As a further improvement of the present invention, a horizontal linear slide rail extending along the direction of the vertical truss is further provided on the horizontal tabletop. A turntable bracket is slidably provided on the horizontal linear slide rail, and a turntable is rotatably mounted on the turntable bracket. A turntable feeding drive device is further provided on the horizontal tabletop, and the turntable feeding drive device drives the turntable bracket to slide along the horizontal linear slide rail, and the control system controls the operation of the turntable feeding drive device.

[0020] As a further improvement of the present invention, the flocking strip material disk positioning device includes a flocking strip support disk and at least one guiding wheel. The flocking strip support disk is fixedly mounted on the machine frame. A horizontal plane for placing the rolled-up flocking strip is formed on the upper side of the flocking strip support disk. A fixed shaft for sleeving the rolled-up flocking strip is fixedly provided on the horizontal plane of the flocking strip support disk. At least one guiding wheel is rotatably mounted on at least one of the machine frame and the flocking strip feeding device, and the flocking strip is led out from the flocking strip support disk and wound around each guiding wheel.

[0021] The beneficial effects of the present invention are as follows: The present invention realizes feeding by clamping the flocking strip with the active feeding roller and the feeding pressure roller. The feeding length of each circle is controlled by calculating the number of rotations of the active feeding roller by the control system, ensuring that the length of each circle of the flocking strip is consistent with the circumference of the annular groove, ensuring perfect splicing of the flocking strip in the annular groove of the splicing material disk. Moreover, the flocking strip is precisely cut by the flocking strip scissors, and the shearing surface is flat, enabling perfect butt joint, so that there are no gaps or bumps on the surface of the grinding disk at the splicing part of the flocking strip. Quantitative and uniform gluing is carried out by the glue dispensing head in the annular groove of the splicing material disk, and the glue dispensing amount is precisely calculated, and there will be no situation of lack of glue or overflow of glue. When the flocking strip is inserted into the annular groove of the splicing material disk, the flocking strip pressing device realizes up and down vibration pressing, ensuring that the pressing depth of the flocking strip is consistent. Finally, the surface of the obtained grinding disk finished product is flat and tight after flocking. The present invention realizes efficient flocking of the grinding disk, saves labor, improves the finished product quality, and reduces the production cost. Description of the Drawings

[0022] Figure 1 is the first three-dimensional view of the present invention;

[0023] Figure 2 is Figure 1 the enlarged view of part A in

[0024] Figure 3 is the second three-dimensional view of the present invention;

[0025] Figure 4 is Figure 3 the enlarged view of part B in

[0026] Figure 5 is the third three-dimensional view of the present invention;

[0027] Figure 6 is Figure 5 the enlarged view of part C in

[0028] Figure 7 This is the fourth three-dimensional view of the present invention;

[0029] Figure 8 is Figure 7 the enlarged view of part D in

[0030] Figure 9 This is the three-dimensional view of the turntable positioning and splicing tray of the present invention;

[0031] Figure 10 This is the three-dimensional view of the intermediate pressing block of the present invention. Detailed implementation mode

[0032] Embodiment: An automatic glue strip pasting device for a grinding disc, comprising a frame, a turntable 1, a turntable driving device 2, a glue bucket 3, a dispensing head 4, a dispensing driving device, a flocking strip tray positioning device, a flocking strip feeding device, a flocking strip feeding driving device, a flocking strip pressing device, a flocking strip pressing driving device, a flocking strip scissors 5, a flocking strip scissors driving device 6 and a control system 7. The turntable 1 is rotatably mounted on the frame around a vertical axis. A splicing tray positioning device is provided on the turntable 1, and the splicing tray positioning device can fixedly position the splicing tray 8 on the turntable 1. The turntable driving device 2 drives the turntable 1 to rotate. The glue bucket 3 is fixedly mounted on the frame, and the glue bucket 3 is connected to the dispensing head 4 through a pipeline. The glue bucket 3 supplies glue to the dispensing head 4. The dispensing head 4 is mounted on the frame so as to be able to move radially and longitudinally along the turntable 1 on a horizontal plane. The dispensing driving device drives the dispensing head 4 to move. A dispensing nozzle is provided on the dispensing head 4, and the dispensing nozzle can be inserted into the annular groove 9 on the surface of the splicing tray 8 on the turntable 1 and dispense glue. The flocking strip tray is rotatably mounted on the flocking strip tray positioning device. The flocking strip feeding device is mounted on the frame so as to be able to move radially and longitudinally along the turntable 1 on a horizontal plane. The flocking strip feeding driving device drives the flocking strip feeding device to move in the horizontal and longitudinal directions. The flocking strip feeding device can send the flocking strips 10 on the flocking strip tray to the annular groove 9 of the splicing tray 8 in a fixed length. The flocking strip pressing device is mounted on the flocking strip feeding device so as to be able to move reciprocally in the longitudinal direction. The flocking strip pressing device can knock on the upper side of the flocking strip 10 at the opening of the annular groove 9 of the splicing tray 8. The flocking strip pressing driving device drives the flocking strip pressing device to move. The flocking strip scissors 5 are mounted on the flocking strip feeding device, and the flocking strip scissors 5 can be closed to cut off the flocking strip 10. The flocking strip scissors driving device 6 drives the flocking strip scissors 5 to open and close. The control system 7 controls the start and stop actions of the turntable driving device 2, the glue bucket 3, the dispensing driving device, the flocking strip feeding device, the flocking strip feeding driving device, the flocking strip pressing driving device and the flocking strip scissors driving device 6.

[0033] In use, the rolled flocking strip 10 is placed on the flocking strip material tray positioning device for positioning. After the flocking strip 10 is led out from the flocking strip material tray positioning device, the flocking strip feeding device feeds it, and at the same time, the control system 7 measures the feeding length. The flocking strip feeding driving device drives the flocking strip feeding device to move radially on the splicing tray 8, so that the flocking strip 10 is aligned with different circles of the annular groove 9 on the splicing tray 8. At the same time, by driving the flocking strip feeding device to move longitudinally, the flocking strip 10 is inserted into and withdrawn from the annular groove 9 of the splicing tray 8, realizing the replacement of different annular grooves 9 for pasting the flocking strip 10. When pasting the flocking strip 10, the glue is applied while pasting the flocking strip 10. After the flocking strip 10 is inserted into the opening of the annular groove 9, the flocking strip pressing device vibrates it up and down to press the flocking strip 10 completely into the annular groove 9 of the splicing tray 8, and the surface height of the flocking strip 10 is consistent. After a circle of the flocking strip 10 is pasted, it is cut to a fixed length by the flocking strip scissors 5, and the next circle of the flocking strip 10 is pasted. This device can achieve high-speed feeding and high-speed pasting of the flocking strip 10. The splicing gap of a single circle of the flocking strip 10 is 0-1 mm, and the amount of glue applied can ensure a filling amount of 2 / 3 of the depth of the annular groove 9, and the height of the glue strip implanted in the groove is consistent.

[0034] The frame includes a horizontal table surface 11 and a truss 12 fixed on the horizontal table surface 11. A horizontal linear guide rail 13 extending radially along the turntable 1 is provided on the truss 12. A left slider 14 and a right slider 15 are respectively slidably provided on the horizontal linear guide rail 13. Left vertical guide rails 16 and right vertical guide rails 17 extending longitudinally are respectively provided on the left slider 14 and the right slider 15. A left mounting plate 18 is slidably provided on the left vertical guide rail 16, and a right mounting plate 19 is slidably provided on the right vertical guide rail 17. The glue dispensing head 4 is installed on the left mounting plate 18, and the flocking strip feeding device is installed on the right mounting plate 19. The glue dispensing driving device includes a left horizontal driving device 20 and a left longitudinal driving device 21. The flocking strip feeding driving device includes a right horizontal driving device 22 and a right longitudinal driving device 23. The left horizontal driving device 20 and the right horizontal driving device 22 respectively drive the left slider 14 and the right slider 15 to move horizontally, and the left longitudinal driving device 21 and the right longitudinal driving device 23 respectively drive the left mounting plate 18 and the right mounting plate 19 to move up and down.

[0035] The horizontal table 11 positions the turntable 1, the turntable drive device 2, the glue bucket 3, and the flocking strip material tray positioning device. The truss 12 positions the dispensing drive device and the flocking strip feeding drive device. Through horizontal and longitudinal movements, the dispensing head 4 and the discharging position of the flocking strip feeding device move radially and longitudinally on the turntable 1, enabling dispensing and flocking of different annular grooves 9 on the splicing tray 8. In addition to using the above-mentioned motion mechanism to change the positions of the dispensing head 4 and the flocking strip feeding device to adapt to different annular grooves 9 for flocking, a multi-axis robotic arm can also be used to drive the dispensing head 4 and the flocking strip feeding device to reach the specified positions for dispensing and flocking, as well as to replace different annular grooves 9. Such equivalent replacement structures are easily conceivable by those skilled in the art based on this patent and fall within the protection scope of this patent.

[0036] An imaging device 44, a horizontal adjustment block 24, and a horizontal adjustment drive device 25 are also provided. The imaging device 44 is fixedly installed on the left slider 14. The imaging device 44 can image the annular groove 9 on the splicing tray 8 and transmit signals to the control system 7. The horizontal adjustment block 24 is slidably installed on the left mounting plate 18 along a horizontal straight line extending in the direction perpendicular to the horizontal straight guide rail 13. The horizontal adjustment drive device 25 drives the horizontal adjustment block 24 to move. The dispensing head 4 is fixedly installed on the horizontal adjustment block 24, and the control system 7 controls the operation of the horizontal adjustment drive device 25. The position of the dispensing head 4 can be adjusted through the horizontal adjustment block 24 to make it directly opposite to the annular groove 9 on the splicing tray 8.

[0037] The flocking strip feeding device includes a driving feed roller 26, a feed pressure roller 27, and a feed servo motor 28. The driving feed roller 26 and the feed pressure roller 27 are respectively rotatably installed on the right mounting plate 19. The flocking strip 10 can be tightly clamped between the driving feed roller 26 and the feed pressure roller 27. The feed servo motor 28 is fixedly installed on the right mounting plate 19, and the feed servo motor 28 drives the driving feed roller 26 to rotate. Feeding is achieved by the elastic clamping and rotation of the driving feed roller 26 and the feed pressure roller 27 on the flocking strip 10. The control system 7 only needs to calculate the number of rotations and angles of the driving feed roller 26 to calculate the feeding length, ensuring the stability of the discharged flocking strip length. It is best to form knurled patterns on the surfaces of the driving feed roller 26 and the feed pressure roller 27 to prevent the flocking strip 10 from slipping on the driving feed roller 26 and the feed pressure roller 27 and improve the feeding accuracy. The above feeding method can achieve the function of flocking and pasting strips with a maximum feeding speed of 40 mm / s. In addition, the flocking strip material tray positioning device can also drive the rotation of the flocking strip 10 material roll for feeding and length measurement, or feeding and length measurement can also be achieved by the clamping and pulling method and linear feeding, and the length measurement can also be carried out by a length meter, etc. Such equivalent replacement structures are easily conceivable by those skilled in the art based on this patent and fall within the protection scope of this patent.

[0038] The flocking strip feeding device is also provided with a flocking strip guiding channel 29, and the flocking strip 10 led out from the flocking strip coil can slide linearly along the flocking strip guiding channel 29. The flocking strip guiding channel 29 guides the forward conveyance of the flocking strip 10, and at the same time makes the curled flocking strip 10 become straight, avoiding the curling and deformation of the flocking strip 10 and affecting the flocking accuracy. The flocking strip guiding channel 29 can be composed of a U-shaped stainless steel section, and the guiding channel can be disconnected at the shearing position, the position of the active feeding roller 26 and the feeding pressure roller 27.

[0039] The flocking strip pressing drive device includes a pressing motor 30, an eccentric wheel 31 and a connecting rod 32. The eccentric wheel 31 is rotatably installed on the right mounting plate 19. The pressing motor 30 drives the eccentric wheel 31 to rotate. The upper end of the connecting rod 32 is hinged to the eccentric rotating shaft on the eccentric wheel 31, and the lower end of the connecting rod 32 is hinged to the flocking strip pressing device. Through the eccentric wheel 31 and the connecting rod 32, a crank and connecting rod 32 mechanism is formed to realize the high-speed up and down vibration of the flocking strip pressing device to knock the flocking strip 10 located at the opening of the annular groove 9 into the annular groove 9, ensuring that the surface height of the flocking strip 10 is consistent. Preferably, a pressing roller is further arranged on the right mounting plate 19. The pressing roller 45 can roll-press the surface of the flocking strip 10 during the flocking process to further improve the overall surface flatness of the flocking strip 10. The pressing roller can be installed on the right mounting plate 19 by means of a multi-section articulated arm 46 to realize the adjustment of its position.

[0040] The right mounting plate 19 is also fixedly provided with a longitudinally extending pressing linear guide rail 33 and a pressing limit stop 34. The flocking strip pressing drive device further includes a pressing slider 35. The pressing slider 35 is slidably installed on the pressing linear guide rail 33 along the longitudinal direction. The flocking strip pressing device is a roller 36 rotatably installed on the pressing slider 35 around a horizontal rotating shaft. The outer circumferential surface of the roller 36 can press against the flocking strip 10 on the annular groove 9 of the splicing coil 8. The pressing slider is stopped on the upper side surface of the pressing limit stop 34. The limit stop and the pressing slider 35 realize height limitation by means of stopping, and at the same time form vibration. The roller 36 contacts the flocking strip 10 to avoid damaging the flocking strip 10 during the pressing process.

[0041] The splicing coil positioning device includes side pressing blocks 37 and an intermediate pressing block 38. The turntable 1 is formed with a positioning material groove for placing the splicing coil 8. At least two side pressing blocks 37 are spaced and installed on the upper side edge of the turntable 1. Each side pressing block 37 can press against the upper side edge of the splicing coil 8 in the positioning material groove. The intermediate pressing block 38 is detachably and fixedly installed at the center of the turntable 1, and the edge of the intermediate pressing block 38 can press against the inner ring edge of the splicing coil in the positioning material groove.

[0042] The outer edge and inner edge of the annular splicing material tray 8 are pressed and positioned by the side pressing block 37 and the middle pressing block 38. The side pressing block 37 slides and positions along the radial direction on the turntable 1. For example, long slots are provided thereon, and a radially extending guide groove is provided at the edge of the turntable 1. The side pressing block 37 is placed in the guide groove, and by sliding the side pressing block 37, it can be extended into or withdrawn from the positioning material groove, and then fixed to the turntable 1 by screws passing through the long slots on the side pressing block 37. In addition, the side pressing block 37 can also be directly positioned on the turntable 1 by the way of screw installation and disassembly, or its pressing on the outer edge of the splicing material tray 8 or disengaging from the outer edge of the splicing material tray 8 can be toggled by rotating around the vertical axis. The middle pressing block 38 can be quickly installed and disassembled with the center of the turntable 1 through a quick installation mechanism. A handle can also be provided on the middle pressing block 38 to improve the operation convenience. The middle pressing block 38 is preferably in a gear-like structure, and the inner edge of the splicing material tray 8 is pressed by the teeth on its outer circumference. In addition to the above structures, the fixed positioning of the splicing material tray 8 can also be achieved by other means.

[0043] A horizontal linear slide rail 39 extending along the direction of the vertical truss 12 is further provided on the horizontal table surface 11. A turntable support 40 capable of sliding is provided on the horizontal linear slide rail 39. The turntable 1 is rotatably installed on the turntable support 40. A turntable feeding drive device 41 is further provided on the horizontal table surface 11. The turntable feeding drive device 41 drives the turntable support 40 to slide along the horizontal linear slide rail 39, and the control system 7 controls the operation of the turntable feeding drive device 41. By providing the horizontal linear slide rail 39 on the horizontal table surface 11, the turntable 1 can slide on the horizontal table surface 11 and withdraw to the outside of the truss 12, the dispensing mechanism and the feeding device, which is convenient for loading and unloading the splicing material tray 8.

[0044] The flocking strip material tray positioning device includes a flocking strip support disk 42 and at least one guide wheel 43. The flocking strip support disk 42 is fixedly installed on the machine frame. A horizontal plane for placing the rolled flocking strip 10 is formed on the upper side of the flocking strip support disk 42. A fixed shaft for sleeving the rolled flocking strip 10 is fixedly provided on the horizontal plane of the flocking strip support disk 42. At least one guide wheel 43 is rotatably installed on at least one of the machine frame and the flocking strip feeding device. The flocking strip 10 is led out from the flocking strip support disk 42 and winds around each guide wheel 43. The conveying direction of the flocking strip 10 is guided by a plurality of guide wheels 43, and it is not affected whether the flocking strip 10 roll is a positive roll or a negative roll.

Claims

1. An automatic adhesive strip pasting device for a grinding disc, characterized in that: It includes a frame, a turntable (1), a turntable driving device (2), a glue bucket (3), a dispensing head (4), a dispensing driving device, a flocking strip material tray positioning device, a flocking strip feeding device, a flocking strip feeding driving device, a flocking strip pressing device, a flocking strip pressing driving device, a flocking strip scissors (5), a flocking strip scissors driving device (6) and a control system (7). The turntable is rotatably mounted on the frame around a vertical axis. A splicing material tray positioning device is provided on the turntable, and the splicing material tray positioning device can fixedly position a splicing material tray (8) on the turntable. The turntable driving device drives the turntable to rotate. The glue bucket is fixedly mounted on the frame, and the glue bucket is connected to the dispensing head through a pipeline. The glue bucket supplies glue to the dispensing head. The dispensing head is mounted on the frame so as to be able to move radially and longitudinally along the turntable in a horizontal plane. The dispensing driving device drives the dispensing head to move. A dispensing nozzle is provided on the dispensing head, and the dispensing nozzle can be inserted into an annular groove on the surface of the splicing material tray on the turntable and dispense glue. The flocking strip material tray is rotatably mounted on the flocking strip material tray positioning device. The flocking strip feeding device is mounted on the frame so as to be able to move radially and longitudinally along the turntable in a horizontal plane. The flocking strip feeding driving device drives the flocking strip feeding device to move horizontally and longitudinally. The flocking strip feeding device can send the flocking strips on the flocking strip material tray to the annular groove (9) of the splicing material tray in a fixed length. The flocking strip pressing device is mounted on the flocking strip feeding device so as to be able to reciprocate longitudinally. The flocking strip pressing device can strike the upper side of the flocking strip (10) located at the opening of the annular groove of the splicing material tray. The flocking strip pressing driving device drives the flocking strip pressing device to move. The flocking strip scissors are mounted on the flocking strip feeding device. The flocking strip scissors can be closed to cut the flocking strip. The flocking strip scissors driving device drives the flocking strip scissors to open and close. The control system controls the start and stop actions of the turntable driving device, the glue bucket, the dispensing driving device, the flocking strip feeding device, the flocking strip feeding driving device, the flocking strip pressing driving device and the flocking strip scissors driving device; The frame includes a horizontal tabletop (11) and a truss (12) fixed on the horizontal tabletop. A horizontal linear guide rail (13) extending radially along the turntable is provided on the truss. A left slider (14) and a right slider (15) are respectively slidably provided on the horizontal linear guide rail. A left vertical guide rail (16) and a right vertical guide rail (17) extending longitudinally are respectively provided on the left slider and the right slider. A left mounting plate (18) is slidably provided on the left vertical guide rail. A right mounting plate (19) is slidably provided on the right vertical guide rail. The dispensing head is mounted on the left mounting plate. The flocking strip feeding device is mounted on the right mounting plate. The dispensing driving device includes a left horizontal driving device (20) and a left longitudinal driving device (21). The flocking strip feeding driving device includes a right horizontal driving device (22) and a right longitudinal driving device (23). The left horizontal driving device and the right horizontal driving device respectively drive the left slider and the right slider to move horizontally. The left longitudinal driving device and the right longitudinal driving device respectively drive the left mounting plate and the right mounting plate to move up and down.

2. The automatic rubber strip pasting device for grinding discs according to claim 1, characterized in that: An imaging device (44), a horizontal adjustment block (24) and a horizontal adjustment driving device (25) are further provided. The imaging device is fixedly installed on the left slider. The imaging device can image the annular groove on the splicing tray and transmit signals to the control system. The horizontal adjustment block is installed on the left mounting plate so as to be able to slide horizontally along the direction extending perpendicular to the horizontal linear guide rail. The horizontal adjustment driving device drives the horizontal adjustment block to move. The dispensing head is fixedly installed on the horizontal adjustment block, and the control system controls the operation of the horizontal adjustment driving device.

3. The automatic adhesive strip pasting device for grinding discs according to claim 1, characterized in that: The flocking strip feeding device includes a driving feed roller (26), a feed pressure roller (27) and a feed servo motor (28). The driving feed roller and the feed pressure roller are respectively rotatably installed on the right mounting plate. The flocking strip can be tightly clamped between the driving feed roller and the feed pressure roller. The feed servo motor is fixedly installed on the right mounting plate, and the feed servo motor drives the driving feed roller to rotate.

4. The automatic rubber strip pasting device for grinding discs according to claim 1, characterized in that: A flocking strip guiding channel (29) is further provided on the flocking strip feeding device. The flocking strip led out from the flocking strip tray can slide linearly along the flocking strip guiding channel.

5. The automatic rubber strip pasting device for grinding disc according to claim 1, wherein: The flocking strip pressing driving device includes a pressing motor (30), an eccentric wheel (31) and a connecting rod (32). The eccentric wheel is rotatably installed on the right mounting plate. The pressing motor drives the eccentric wheel to rotate. The upper end of the connecting rod is hinged to the eccentric rotating shaft on the eccentric wheel, and the lower end of the connecting rod is hinged to the flocking strip pressing device.

6. The automatic rubber strip pasting device for grinding discs according to claim 5, wherein: A longitudinally extending pressing linear guide rail (33) and a pressing limit stop block (34) are further fixedly provided on the right mounting plate. The flocking strip pressing driving device further includes a pressing slider (35). The pressing slider is installed on the pressing linear guide rail so as to be able to slide longitudinally. The flocking strip pressing device is a roller (36) rotatably installed on the pressing slider around a horizontal rotating shaft. The outer circumferential surface of the roller can press against the flocking strip on the annular groove of the splicing tray, and the pressing slider abuts against the upper side surface of the pressing limit stop block.

7. The automatic rubber strip pasting device for grinding discs according to claim 1, characterized in that: The splicing tray positioning device includes side pressing blocks (37) and an intermediate pressing block (38). A positioning material groove for placing the splicing tray is formed on the turntable. At least two side pressing blocks are installed at intervals on the upper side edge of the turntable. Each side pressing block can press against the upper side edge of the splicing tray in the positioning material groove. The intermediate pressing block is detachably and fixedly installed at the center of the turntable, and the edge of the intermediate pressing block can press against the inner ring edge of the splicing tray in the positioning material groove.

8. The automatic rubber strip pasting device for grinding discs according to claim 1, characterized in that: A horizontal linear slide rail (39) extending along the direction perpendicular to the truss is further provided on the horizontal tabletop. A turntable support (40) capable of sliding is provided on the horizontal linear slide rail. The turntable is rotatably installed on the turntable support. A turntable feeding driving device (41) is further provided on the horizontal tabletop. The turntable feeding driving device drives the turntable support to slide along the horizontal linear slide rail, and the control system controls the operation of the turntable feeding driving device.

9. The automatic rubber strip pasting device for grinding discs according to claim 1, characterized in that: The flocking strip material positioning device includes a flocking strip support disk (42) and at least one guide wheel (43). The flocking strip support disk is fixedly installed on the frame. A horizontal plane for placing the coiled flocking strip is formed on the upper side of the flocking strip support disk. A fixed shaft for sleeving the coiled flocking strip is fixedly arranged on the horizontal plane of the flocking strip support disk. At least one guide wheel is rotatably installed on at least one of the frame and the flocking strip feeding device. The flocking strip is led out from the flocking strip support disk and then winds around each guide wheel.

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