A rolling coating device and method for rubber oil of a steering gear shock absorber sleeve

Abstract

The present invention relates to a roll coating device, specifically to a roll coating device for the rubber oil of a steering gear shock absorber sleeve. The roll coating device is composed of a frame and a roll coater. A conveyor belt is arranged on the frame, a feeder is arranged on the frame on one side of the conveyor belt, and a roll coater is arranged on the frame on the other side of the conveyor belt. The roll coating device can roll coat workpieces one by one through the feeder. Since oil is applied by rolling and the workpieces are mutually extruded during the rolling coating process, the circumferential surface of the workpieces can be evenly roll coated without adhering too much oil. Furthermore, the oil will not drip onto the tabletop, and it is not easy to generate oil mist splash, which is not easy to affect the environment. Since mechanical automatic roll coating is adopted, it will not affect the next process, and thus the working efficiency can be greatly improved. At the same time, since only the circumferential surface of the workpieces is roll coated and it is not necessary to wipe the end faces and inner holes of the workpieces, the working efficiency is further improved. The problem of low working efficiency and poor working environment in the existing oil application method is solved.

Description

Technical Field

[0001] The present invention relates to a roll coating device, and more particularly to a roll coating device for rubber oil of a steering damper sleeve. Background Art

[0002] The steering damper sleeve is an important component affecting the performance of the steering gear assembly on the vehicle. The steering damper sleeve is installed at both ends of the steering gear housing, and the steering damper sleeve is in interference connection with the port ends of both ends of the steering gear housing. Since the steering damper sleeve is in interference connection with the steering gear housing, when installing the steering damper sleeve, rubber oil (or lubricating oil) needs to be applied to the circumferential surface of the steering damper sleeve, so as to facilitate the press-fitting of the steering damper sleeve and the steering gear housing by lubricating between the steering damper sleeve and the steering gear housing, and reduce the frictional force between the steering damper sleeve and the steering gear housing, preventing damage to the steering damper sleeve caused by mutual shearing due to the frictional force between the steering damper sleeve and the steering gear housing. At present, there are the following two methods for oiling the steering damper sleeve: 1. Manually apply it with a paintbrush; 2. Atomize the rubber oil with an oil gun and then spray it. Although the above two methods can oil the steering damper sleeve, the above two methods also have corresponding disadvantages: In Method 1, since it is necessary to ensure that the entire circumferential surface of the steering damper sleeve is evenly coated, the paintbrush often dips a large amount of oil, resulting in a large waste of oil. Moreover, after applying the oil, there is a lot of oil adhering to the position where the steering damper sleeve initially contacts the paintbrush, and the surface of the steering damper sleeve is prone to overflow in the form of water droplets, dripping onto the workbench surface, resulting in a poor working environment. At the same time, the time for applying the oil with the paintbrush is likely to affect the next process (the press-fitting must be carried out after applying the oil), resulting in low work efficiency; In Method 2, there is rubber oil adhering to the two end faces and the inner hole of the steering damper sleeve for the generated oil mist, and it is necessary to clean the oil in the end faces and the inner hole in the subsequent process, which will also affect the next process, resulting in low efficiency. At the same time, oil mist splashes and precipitates on the surrounding equipment during the spraying process, causing harm to the surrounding equipment and damage to the occupational health of personnel, and also resulting in a poor environment in the adjacent operation area. Therefore, it is necessary to design a roll coating device for rubber oil of a steering damper sleeve to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to: aiming at the deficiencies of the prior art, provide a roll coating device for rubber oil of a steering damper sleeve that can effectively improve work efficiency and effectively improve the working environment, so as to solve the problems of low work efficiency and poor working environment of the existing oiling methods.

[0004] The technical solution of the present invention is:

[0005] A rolling coating device for the rubber oil of a steering gear shock absorber sleeve, which is composed of a frame, a conveyor belt, a feeding device and a rolling coater. It is characterized in that: a conveyor belt is arranged on the frame, a feeding device is arranged on the frame on one side of the conveyor belt, and a rolling coater is arranged on the frame on the other side of the conveyor belt; the rolling coater is composed of an oil storage tank, a support plate, an oil coating roller and a rolling coating motor. An oil coating roller is arranged on the support plate on one side of the end of the oil storage tank at intervals up and down, and the bottom of the oil coating roller at the lower end of the support plate extends into the oil storage tank; a rolling coating motor is arranged on the other side of the support plate, and the output shaft of the rolling coating motor is connected to the oil coating roller at the lower end of the support plate; the oil storage tank and the support plate are respectively fixedly connected to the frame.

[0006] The oil coating roller is composed of an assembly shaft, a sheet-shaped oil-absorbing cotton wheel and a locking nut. A plurality of oil-absorbing cotton wheels are sleeved on the assembly shaft, and a locking nut is threadedly installed on the assembly shaft outside the oil-absorbing cotton wheel, and the locking nut is abutted and connected to the oil-absorbing cotton wheel.

[0007] A positioning plate is arranged on the frame below the conveyor belt. The top end of the positioning plate abuts against the assembly shaft of the oil coating roller at the lower end of the support plate, and an adjustment hole is arranged at the bottom end of the positioning plate. The positioning plate is fixedly connected to the frame through the adjustment hole and a fixing bolt.

[0008] The conveyor belt is composed of support rollers, a belt body, sleeve rods and a transmission motor. The belt body is arranged between the parallel support rollers, and sleeve rods are evenly distributed on the outer surface of the belt body; a transmission motor is arranged above the support rollers, and the output shaft of the transmission motor is connected to the support rollers; the bottom ends of the support rollers are movably connected to the frame through bearings, and the transmission motor is fixedly connected to the frame.

[0009] A limiting flange is arranged on the support roller below the belt body, and the limiting flange abuts against the bottom end face of the belt body; a limiting sleeve is arranged on the support roller above the belt body, and the limiting sleeve is connected to the support roller through a bearing, and the bottom end face of the limiting sleeve abuts against the top end face of the belt body; the top ends of the support rollers are connected to the frame through the limiting sleeve and bearings.

[0010] The feeding device is composed of a feeding chute, a blocking mechanism, a pushing cylinder, an adjustment frame and a positioning block. A blocking mechanism is arranged on one side of the tail end of the feeding chute, a pushing cylinder is arranged on the blocking mechanism, a positioning block is installed in front of the tail end of the feeding chute through an adjustment frame, and a V-shaped groove is arranged on the positioning block; the end of the piston rod of the pushing cylinder is provided with a push head corresponding to the V-shaped groove; the feeding chute is arranged in an inclined shape, and the feeding chute is fixedly connected to the frame through the installed plates arranged at intervals.

[0011] The described blocking mechanism is composed of an assembly plate, a lifting cylinder, a lower blocking rod, a swing arm and an upper blocking rod. The assembly plate is in an inverted L shape. A lifting cylinder is installed at the top end of the assembly plate, and a lower blocking rod is arranged on the piston rod of the lifting cylinder; a swing arm is installed on the assembly plate below the lifting cylinder through an assembly short shaft. One end of the swing arm abuts and connects with a follower flange on the lower blocking rod, and the other end of the swing arm is installed with an upper blocking rod through a pin; the assembly plate is fixedly connected to the frame and the pushing cylinder respectively.

[0012] The described adjusting frame is composed of a support block, a set screw, an angle positioning block, a telescopic rod, an adjusting nut and a spring. The angle positioning block is installed on the support block through the set screw. The telescopic rods are inserted into the angle positioning block in parallel and movably. The end of the telescopic rod below the angle positioning block is threadedly installed with an adjusting nut, and the end of the telescopic rod above the angle positioning block is fixedly connected to the positioning block. A spring is sleeved on the telescopic rod between the angle positioning block and the positioning block; the support block is fixedly connected to the frame.

[0013] A color sensor for detecting the shock absorber sleeve on the conveyor belt is arranged on the frame above the oil sump. The color sensor is electrically connected to the lifting cylinder, the pushing cylinder, the conveyor motor and the roller coating motor respectively.

[0014] A connector is arranged on the frame outside the oil sump. An oil injection pipe is arranged on the frame between the connector and the oil sump. The connector is communicated with the oil sump through the oil injection pipe.

[0015] The beneficial effects of the present invention are as follows:

[0016] The roller coating device for the rubber oil of the shock absorber sleeve of the steering gear can feed workpieces (shock absorber sleeves of the steering gear) onto the conveyor belt one by one through the feeder, and can transfer the workpieces to the roller coater one by one through the conveyor belt, and then perform roller coating through the roller coater. Since roller coating is carried out by the oil coating roller and the oil coating roller and the workpiece are mutually extruded during the roller coating process, the circumferential surface of the workpiece can be evenly roller coated and will not adhere too much oil, so that the oil adhered to the workpiece will not drip on the tabletop, and it is not easy to generate oil mist splashing, and it is not easy to affect the environment; because of mechanical automatic roller coating, during the assembly process, only the roller coated workpiece needs to be taken from the conveyor belt to perform assembly, which will not affect the next process, and thus can greatly improve the work efficiency; at the same time, since only the circumferential surface of the workpiece is roller coated during the roller coating process, it is not easy for the oil to enter the end face and inner hole of the workpiece, and it is not necessary to wipe the end face and inner hole of the workpiece before the assembly process, further improving the work efficiency; it solves the problems of low work efficiency and poor working environment of the existing oiling method, and is especially suitable for oiling the shock absorber sleeve of the steering gear. Description of the Drawings

[0017] Figure 1 is the structural schematic diagram of the present invention;

[0018] Figure 2It is a top view schematic diagram of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the roller coater of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the conveyor belt of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the support roller of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the feeder of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the blocking mechanism of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the adjusting frame of the present invention.

[0025] In the figure: 1, frame; 2, oil sump; 3, support plate; 4, roller coating motor; 5, assembly shaft; 6, oil-absorbing cotton wheel; 7, locking nut; 8, positioning plate; 9, adjustment hole; 10, support roller; 11, belt body; 12, sleeve rod; 13, conveyor motor; 14, limit flange; 15, limit sleeve; 16, feeding chute; 17, pushing cylinder; 18, positioning block; 19, V-shaped groove; 20, push head; 21, assembly plate; 22, lifting cylinder; 23, lower stop rod; 24, swing arm; 25, upper stop rod; 26, assembly short shaft; 27, follower flange; 28, support block; 29, set screw; 30, angle positioning block; 31, telescopic rod; 32, adjusting nut; 33, spring; 34, color sensor; 35, connector; 36, oil injection pipe; 37, workpiece. Detailed implementation manners

[0026] The roller coating device for the shock absorber rubber oil of the steering gear is composed of a frame 1, a conveyor belt, a feeder and a roller coater. A conveyor belt is arranged on the frame 1, a feeder is arranged on the frame 1 on one side of the conveyor belt, and a roller coater is arranged on the frame 1 on the other side of the conveyor belt. The function of the feeder is to feed the workpiece to the conveyor belt through the feeder, so that the conveyor belt can drive the workpiece to move towards the roller coater, and thus the roller coater roller-coats the workpiece moving to the roller coater, so that the oil adheres to the circumferential surface of the workpiece.

[0027] The roller coater consists of an oil storage tank 2, a support plate 3, an oiling roller, and a roller coating motor 4. An oiling roller is arranged on the support plate 3 at one end of the oil storage tank 2 at upper and lower intervals, so that when the workpiece is located between the oiling rollers, the workpiece is driven to rotate by the oiling rollers, so that the oil on the oiling rollers adheres to the circumferential surface of the workpiece, and the circumferential surface of the workpiece is roller coated. Since the oiling rollers and the workpiece are mutually extruded, too much oil will not adhere to the workpiece, so that the oil on the circumferential surface of the workpiece is not easy to drip from the workpiece, ensuring the surrounding working environment. At the same time, after the workpiece is roller coated by the oiling rollers and continues to move forward, the workpiece will continue to move above the oil storage tank 2 for a certain distance, so that even if there is too much oil on the workpiece, the excess oil on the workpiece can drip back into the oil storage tank 2, recycling the oil to avoid waste and avoiding polluting the surrounding working environment. Since the oiling is carried out by the roller coating method and there is no oil mist splashing, it further ensures that the surrounding working environment will not be polluted; when the oiling roller is roller coating, only the circumferential surface of the workpiece is roller coated, so that the oil is not easy to flow to the end face and inner hole of the workpiece. Therefore, when the workpiece is press-fitted, there is no need to wipe the inner hole and end face of the workpiece. Only by removing the roller-coated workpiece can the press-fitting be carried out. Thus, it is not easy to occupy the operation time of the next process and can effectively improve the work efficiency; the function of the oiling roller at the upper end of the support plate 3 is on the one hand to press the workpiece against the oiling roller at the lower end of the support plate 3, so that the oil on the oiling roller at the lower end of the support plate 3 can roller coat the circumferential surface of the workpiece, and on the other hand to adsorb the excess oil on the workpiece through the oiling roller at the upper end of the support plate 3, removing the excess oil on the workpiece to avoid oil dripping and polluting the surrounding environment; the oiling roller consists of an assembly shaft 5, a sheet-shaped oil-absorbing cotton wheel 6, and a locking nut 7. A plurality of oil-absorbing cotton wheels 6 are sleeved on the assembly shaft 5, and a locking nut 7 is threadedly installed on the assembly shaft 5 outside the oil-absorbing cotton wheel 6, and the locking nut 7 is abutted and connected with the oil-absorbing cotton wheel 6; since the workpieces have different specifications, the axial lengths, tapers, and end face diameters are different among workpieces of different specifications. The purpose of stacking multiple oil-absorbing cotton wheels 6 is to adjust the length of the oiling roller by adjusting the number of oil-absorbing cotton wheels 6, so that the length of the oiling roller can be consistent with the axial length of the workpiece, thereby ensuring that when roller coating, the oiling roller can fully roller coat the circumferential surface of the workpiece, ensuring that all parts of the circumferential surface of the workpiece can adhere to the oil, thereby ensuring the normal press-fitting of the workpiece and ensuring that the workpiece will not be damaged during the press-fitting process; the oil-absorbing cotton wheel 6 is a cotton wheel, and it is easy to change its shape after being extruded, so that the oil-absorbing cotton wheel 6 can adapt to workpieces of different specifications, so that the oil-absorbing cotton wheel 6 can change its shape along with the shape of the workpiece during the roller coating extrusion process, and then the oil-absorbing cotton wheel 6 is wedged with the outer shape of the circumferential surface of the workpiece, thereby ensuring that all parts of the circumferential surface of the workpiece can be roller coated with oil; the bottom of the oiling roller at the lower end of the support plate 3 extends into the oil storage tank 2, so that the bottom of the oiling roller at the lower end of the support plate 3 can adsorb the oil in the oil storage tank 2, thereby ensuring that the oiling roller at the lower end of the support plate 3 can absorb the oil and then transfer the oil to the circumferential surface of the workpiece;On the other side of the support plate 3, there is a roller coating motor 4. The output shaft of the roller coating motor 4 is connected to the oiling roller at the lower end of the support plate 3. The function of the roller coating motor 4 is that when the roller coating motor 4 rotates, it can drive the oiling roller at the lower end of the support plate 3 to rotate, thereby driving the workpiece between the oiling rollers to rotate, and roller coating the circumferential surface of the workpiece during the rotation of the workpiece; the oil sump 2 and the support plate 3 are respectively fixedly connected to the frame 1; on the frame 1 below the conveyor belt, there is a positioning plate 8. The top end of the positioning plate 8 abuts against the assembly shaft 5 of the oiling roller at the lower end of the support plate 3. The bottom end of the positioning plate 8 is provided with an adjustment hole 9. The positioning plate 8 is fixedly connected to the frame 1 through the adjustment hole 9 and a fixing bolt. The function of the positioning plate 8 is to support the oiling roller at the lower end of the support plate 3, so that the oiling roller at the lower end of the support plate 3 can bear the gravity and extrusion force of the workpiece without deviation, ensuring that the supporting force and contact area of the oiling roller at the lower end of the support plate 3 on the workpiece will not change, and further ensuring uniform roller coating; the function of the adjustment hole 9 is to adjust the position of the positioning plate 8 through the adjustment hole 9, so that when adjusting the number of oil-absorbing cotton wheels 6, the relative position of the positioning plate 8 and the oiling roller assembly shaft 5 can be adjusted to avoid interference between the oil-absorbing cotton wheels 6 and the locking nuts 7 and the positioning plate 8.;

[0028] The conveyor belt is composed of a support roller 10, a belt body 11, a sleeve rod 12 and a conveyor motor 13. The belt body 11 is arranged between the juxtaposed support rollers 10, and the sleeve rods 12 are evenly distributed on the outer surface of the belt body 11; above the support roller 10, there is a conveyor motor 13, and the output shaft of the conveyor motor 13 is connected to the support roller 10; the bottom end of the support roller 10 is movably connected to the frame 1 through a bearing, and the conveyor motor 13 is fixedly connected to the frame; the function of the conveyor motor 13 is to drive the support roller 10 to rotate, thereby driving the belt body 11 to rotate, and then driving the sleeve rod 12 to rotate, thereby driving the workpiece sleeved on the sleeve rod 12 to be transported, so that the workpiece can be transported from the feeder to the roller coater; on the support roller 10 below the belt body 11, there is a limit flange 14, and the limit flange 14 abuts against the bottom end face of the belt body 11 to limit the lower end of the belt body 11 through the limit flange 14 to prevent the belt body 11 from moving downward during rotation, so as to ensure that the position of the belt body 11 will not change, and ensure that the conveyor belt can accurately feed and accurately transport the workpiece between the oiling rollers; on the support roller 10 above the belt body 11, there is a limit sleeve 15, and the limit sleeve 15 is connected to the support roller 10 through a bearing. The bottom end face of the limit sleeve 15 abuts against the top end face of the belt body 11; the top end of the support roller 10 is connected to the frame 1 through the limit sleeve 15 and a bearing; the function of the limit sleeve 15 is on the one hand to support the support roller 10, and on the other hand to limit the upper end of the belt body 11 to prevent the belt body 11 from moving upward during rotation, so as to cooperate with the limit flange 14 to further ensure that the position of the belt body 11 will not change, and ensure that the conveyor belt can accurately feed and accurately transport the workpiece between the oiling rollers.

[0029] The loader consists of a loading chute 16, a blocking mechanism, a pushing cylinder 17, an adjustment frame and a positioning block 18. The loading chute 16 is inclined. The loading chute 16 is fixedly connected to the frame 1 through the mounting plates arranged at intervals. A blocking mechanism is arranged on one side of the tail end of the loading chute 16 to block the workpieces through the blocking mechanism, so as to release the workpieces one by one, enabling the workpieces to be loaded onto the conveyor belt one by one. The blocking mechanism consists of an assembly plate 21, a lifting cylinder 22, a lower stop rod 23, a swing arm 24 and an upper stop rod 25. The assembly plate 21 is in an inverted L shape. The lifting cylinder 22 is installed at the top end of the assembly plate 21. The lower stop rod 23 is arranged on the piston rod of the lifting cylinder 22. The function of the lifting cylinder 22 is to block the workpiece at the end of the tail of the loading chute 16 through the lower stop rod 23 when the lifting cylinder 22 drives the lower stop rod 23 to move downward, so that the workpiece at the end of the tail of the loading chute 16 cannot continue to roll downward. When the lifting cylinder 22 drives the lower stop rod 23 to move upward, the lower stop rod 23 releases the workpiece at the end of the tail of the loading chute 16, enabling the workpiece to roll out of the loading chute 16. The swing arm 24 is installed on the assembly plate 21 below the lifting cylinder 22 through an assembly short shaft 26. One end of the swing arm 24 is in abutting connection with the follower flange 27 on the lower stop rod 23. The other end of the swing arm 24 is installed with the upper stop rod 25 through a pin. The function of the follower flange 27 is to drive the end of the swing arm 24 to move up and down through the follower flange 27 during the up and down movement of the lower stop rod 23, thereby driving the swing arm 24 to swing around the assembly short shaft 26, and thus driving the upper stop rod 25 at the other end of the swing arm 24 to move up and down. After the upper stop rod 25 moves downward, it blocks the workpiece above the upper stop rod 25 to prevent the workpiece above the upper stop rod 25 from moving downward. After the upper stop rod 25 moves upward, the upper stop rod 25 releases the workpiece above the upper stop rod 25, enabling the workpiece above the upper stop rod 25 to move downward. Since the lower stop rod 23 is at one end of the swing arm 24 and the upper stop rod 25 is at the other end of the swing arm 24, the movement directions of the upper stop rod 25 and the lower stop rod 23 are opposite, that is, when the lower stop rod 23 moves downward, the upper stop rod 25 moves upward, and when the lower stop rod 23 moves upward, the upper stop rod 25 moves downward. After the workpiece is released by the upper stop rod 25, it enters between the upper stop rod 25 and the lower stop rod 23, and the lower stop rod 23 blocks the workpiece. Since the distance between the upper stop rod 25 and the lower stop rod 23 is the same as the outer diameter of the workpiece, only one workpiece can enter between the upper stop rod 25 and the lower stop rod 23. When the lower stop rod 23 releases the workpiece between the upper stop rod 25 and the lower stop rod 23, the upper stop rod 25 blocks the workpiece, thereby releasing the workpieces one by one, enabling the workpieces to be loaded onto the conveyor belt one by one. A pushing cylinder 17 is arranged on the blocking mechanism. A positioning block 18 is installed in front of the end of the tail of the loading chute 16 through an adjustment frame. A V-shaped groove 19 is arranged on the positioning block 18. The end of the piston rod of the pushing cylinder 17 is correspondingly provided with a push head 20 opposite to the V-shaped groove 19;The function of the positioning block 18 is to position the workpiece released by the feeding chute 16 through the V-shaped groove 19 on the positioning block 18, so that the workpiece is located between the push head 20 and the sleeve rod 12 of the conveyor belt, enabling the push head 20 to push the workpiece towards the sleeve rod 12 of the conveyor belt, and further enabling the workpiece to be sleeved on the sleeve rod 12, thereby loading the workpiece onto the conveyor belt; the function of the pushing cylinder 17 is to push the push head 20 to move through the pushing cylinder 17, so as to push the workpiece towards the conveyor belt during the movement of the push head 20 and load the workpiece; the adjusting frame is composed of a support block 28, a set screw 29, an angle positioning block 30, a telescopic rod 31, an adjusting nut 32 and a spring 33. The angle positioning block 30 is installed on the support block 28 through the set screw 29. The telescopic rod 31 is inserted into the angle positioning block 30 in parallel and movably. The end of the telescopic rod 31 below the angle positioning block 30 is threadedly installed with the adjusting nut 32. The end of the telescopic rod 31 above the angle positioning block 30 is fixedly connected to the positioning block 18. A spring 33 is sleeved on the telescopic rod 31 between the angle positioning block 30 and the positioning block 18; the support block 28 is fixedly connected to the frame 1; the function of the set screw 29 is to adjust the inclination angle of the angle positioning block 30 through the set screw 29, and then adjust the inclination angle of the telescopic rod 31, thereby adjusting the inclination angle of the positioning block 18, that is, adjusting the inclination angle of the V-shaped groove 19 on the positioning block 18, so that the inclination angle of the V-shaped groove 19 can be consistent with the taper of the workpiece. When the workpiece rolls into the V-shaped groove 19, the inner hole of the workpiece can be guaranteed to be in a horizontal state, so that the inner hole of the workpiece is parallel to the sleeve rod 12 during the process of sleeving the workpiece onto the sleeve rod 12, and the inner hole of the workpiece does not touch the end of the sleeve rod 12, avoiding scratches on the inner hole of the workpiece and resulting in workpiece damage; the function of the telescopic rod 31 is to enable the positioning block 18 to move up and down. Since the axial lengths of workpieces of different specifications are different, when the workpiece is too long, after the workpiece is completely sleeved on the sleeve rod 12, its end can still remain in the V-shaped groove 19 of the positioning block 18. In this case, when the workpiece moves driven by the conveyor belt, the workpiece can press the positioning block 18, causing the positioning block 18 to move downward against the elastic force of the spring 33, avoiding interference between the workpiece and the positioning block 18; the function of the adjusting nut 32 is to adjust the distance between the positioning block 18 and the angle positioning block 30 through the adjusting nut 32, and then adjust the height of the positioning block 18, so that the height of the positioning block 18 is adapted to the outer diameter of the workpiece, so that when the workpiece rolls onto the positioning block 18, the inner hole of the workpiece can be on the same axis as the sleeve rod 12, thereby ensuring that the workpiece can be sleeved on the sleeve rod 12; the assembly plate 21 is fixedly connected to the frame 1 and the pushing cylinder 17 respectively.;

[0030] A connector 35 is provided on the frame 1 outside the oil sump 2. An oil injection pipe 36 is provided on the frame 1 between the connector 35 and the oil sump 2. The connector 35 is communicated with the oil sump 2 through the oil injection pipe 36. Oil can be injected into the oil sump 2 through the connector 35 and the oil injection pipe 36, which is convenient for supplementing the oil in the oil sump 2. The function of the connector 35 is to facilitate the connection of oil injection tools (such as oil pumps and manual oil pressing devices) through the connector 35, so as to conveniently inject oil into the oil sump 2. A color sensor 34 (Keyence CZ-V20 series RGB digital fiber optic sensor) for detecting the shock absorber sleeve on the conveyor belt is provided on the frame 1 above the oil sump 2. The color sensor 34 is electrically connected to the lifting cylinder 22, the pushing cylinder 17, the conveyor motor 13 and the roller coating motor 4 respectively. Preferably, the color sensor 34 is electrically connected to the lifting cylinder 22, the pushing cylinder 17, the conveyor motor 13 and the roller coating motor 4 respectively through a programmable controller (Siemens S7-200 type PLC). The color sensor 34 detects the workpiece and uploads the detection signal to the programmable controller. The programmable controller drives the lifting cylinder 22, the pushing cylinder 17, the conveyor motor 13 and the roller coating motor 4 to act according to the detection signal and the preset program (roller coating method) to complete the roller coating of the workpiece.

[0031] The roller coating method based on this roller coating device includes the following steps:

[0032] Adjust before roller coating;

[0033] Adjust the set screw 29 of the adjustment frame of the roller coating device according to the taper of the workpiece. Adjust the inclination angle of the positioning block 18 (i.e., the inclination angle of the V-shaped groove) through the set screw 29, and adjust the inclination angle of the positioning block 18 so that the inner hole of the workpiece is in a horizontal state when the workpiece falls into the V-shaped groove 19, so that the inner hole of the workpiece and the sleeve rod 12 of the conveyor belt will not rub against each other (when continuously roller coating workpieces of the same specification, the above repeated adjustment is not required).

[0034] Adjust the adjusting nut 32 of the adjustment frame according to the diameter of the workpiece, and adjust the height of the positioning block 18 so that the inner hole of the workpiece and the sleeve rod 12 of the conveyor belt are on the same axis when the workpiece falls into the V-shaped groove 19, so that the workpiece can be sleeved on the sleeve rod 12 (when continuously roller coating workpieces of the same specification, the above repeated adjustment is not required).

[0035] Loosen the fixing bolt on the positioning plate 8, and push the positioning plate 8 to move it backward so as to add or reduce the oil-absorbing cotton wheels 6 to / from the assembly shaft 5 of the oiling roller; adjust the number of the oil-absorbing cotton wheels 6 on the oiling roller according to the axial length of the workpiece, increase or decrease the number of the oil-absorbing cotton wheels so that the length of the oiling roller is equal to the axial length of the workpiece. After the length adjustment of the oiling roller is completed, push the positioning plate 8 to support the assembly shaft 5 of the oiling roller at the lower end of the support plate 3 again. After the positioning plate 8 moves in place, tighten the fixing bolt on the positioning plate 8 to lock the positioning plate 8 (when continuously roll-coating workpieces of the same specification, the above adjustments do not need to be repeated).

[0036] Make preparations before roll-coating;

[0037] Place (or replenish) the workpiece on the loading slideway 16 of the loader before roll-coating;

[0038] Connect the oil pump through the connector 35. After the connection is completed, start the oil pump to extract the oil from the oil barrel and inject (or replenish) the oil into the oil sump 2 through the connector 35 and the oil injection pipe 36 in sequence. The requirement for the oil level is that the height of the oil level is equal to 2 / 3 - 3 / 4 of the total height of the oil sump 2. At this time, the oil level can submerge the bottom of the oiling roller at the lower end of the support plate 3, and it can ensure that the oil is not easily spilled due to the rotation of the oiling roller driving the oil to flow.

[0039] Start the roll-coating motor 4 of the roll-coater. After the roll-coating motor 4 starts, drive the oiling roller to rotate at a speed of 0.05 - 0.1 rad / s for 2 - 3 circles, so that the oiling roller fully absorbs the oil through the oil-absorbing cotton wheels during the slow rotation process.

[0040] Load the workpiece onto the conveyor belt;

[0041] Start the lifting cylinder 22 of the blocking mechanism. The lifting cylinder 22 drives the lower blocking rod 23 to move upward (with the lower blocking rod 23 blocking the workpiece as the initial position). After the lower blocking rod 23 moves in place, release the workpiece blocked by the lower blocking rod 23, so that the workpiece rolls down to the V-shaped groove 19 of the positioning block 18 under its own weight; during the upward movement of the lower blocking rod 23, the lower blocking rod 23 drives the upper blocking rod 25 to move downward through the swing arm 24 to block the workpiece above the upper blocking rod 25.

[0042] After the lifting cylinder 22 drives the lower blocking rod 23 to move upward in place, the lifting cylinder 22 drives the lower blocking rod 23 to reset downward, so that the workpiece blocked by the upper blocking rod 25 is replenished above the lower blocking rod 23.

[0043] After the workpiece rolls into the V-shaped groove 19, the pushing cylinder 17 is started. The pushing cylinder 17 drives the push head 20 to move. During the movement, the push head 20 pushes the workpiece towards the sleeve rod 12 of the conveyor belt, gradually sleeving the workpiece on the sleeve rod 12. After the workpiece is sleeved, the pushing cylinder 17 drives the push head 20 to reset.

[0044] Workpiece transmission;

[0045] The transfer motor 13 starts, and the transfer motor 13 drives the sleeve rod 12 on the belt body 11 to move at a speed less than or equal to 5 m / s through the support roller 10 and the belt body 11 in sequence, so that the sleeve rod 12 drives the workpiece to be transported to the roller coater;

[0046] When the conveyor belt conveys the workpiece, the distance between two adjacent sleeve rods 12 is used as the distance for each conveyance. After each conveyance, a pause is made, and the conveyance is carried out at intervals with a pause time less than 5 s. After each conveyance, during the pause, the color sensor 34 detects the area below the color sensor 34. When no workpiece is detected (detected by the color of the workpiece), after the color sensor 34 sends the detection signal to the program controller, the above processes of feeding the workpiece onto the conveyor belt and conveying the workpiece are repeated, so that the workpiece continues to be conveyed below the color sensor 34;

[0047] Workpiece roller coating;

[0048] When the workpiece is conveyed between the oiling rollers of the roller coater, the roller coating motor 4 starts. The roller coating motor 4 drives the workpiece to rotate 2 - 3 circles within a time less than 5 s when the workpiece pauses through the oiling rollers, and the workpiece is roller coated by the oiling rollers during the rotation of the workpiece;

[0049] After the pause of the workpiece is completed, the conveyor belt continues to drive the workpiece to move towards the color sensor 34. When the workpiece moves below the color sensor 34, the color sensor 34 detects the workpiece, and the lifting cylinder 22, the pushing cylinder 17, the transfer motor 13, and the roller coating motor 4 stop and do not start again, waiting to pick up the workpiece from the conveyor belt. After picking up the workpiece, when the color sensor 34 does not detect the workpiece, the above process is repeated, so that the next roller coated workpiece is conveyed below the color sensor 34 and waits to be picked up, and so on in a cycle.

[0050] The roller coating device for the rubber oil of the steering gear shock absorber sleeve can feed the workpieces onto the conveyor belt one by one through the feeder, and can convey the workpieces to the roller coater one by one through the conveyor belt, and then perform roller coating through the roller coater. Since roller coating is carried out through the oiling rollers and the oiling rollers are mutually extruded with the workpiece during the roller coating process, the circumferential surface of the workpiece can be evenly roller coated and will not adhere too much oil, so that the oil adhered to the workpiece will not drip onto the tabletop, and it is not easy to generate oil mist splashing, and it is not easy to affect the environment; Since mechanical automatic roller coating is carried out, during the assembly process, only the roller coated workpiece needs to be taken from the conveyor belt to perform the assembly, which will not affect the next process, and thus can greatly improve the work efficiency; At the same time, since only the circumferential surface of the workpiece is roller coated during the roller coating process, it is not easy for the oil to enter the end face and inner hole of the workpiece, and it is not necessary to wipe the end face and inner hole of the workpiece before the assembly process, further improving the work efficiency; It solves the problems of low work efficiency and poor working environment of the existing oiling methods, and is especially suitable for oiling the steering gear shock absorber sleeve.

Claims

1. A roll coating device for the rubber oil of a steering gear shock absorber sleeve, which is composed of a frame (1), a conveyor belt, a feeder and a roll coater, and is characterized in that: A conveyor belt is provided on the frame (1). A feeder is provided on the frame (1) on one side of the conveyor belt, and a roll coater is provided on the frame (1) on the other side of the conveyor belt; the roll coater is composed of an oil sump (2), a support plate (3), an oil coating roller and a roll coating motor (4). Oil coating rollers are provided on the support plate (3) at one end of the oil sump (2) at upper and lower intervals, and the bottom of the oil coating roller at the lower end of the support plate (3) extends into the oil sump (2); a roll coating motor (4) is provided on the other side of the support plate (3), and the output shaft of the roll coating motor (4) is connected to the oil coating roller at the lower end of the support plate (3); the oil sump (2) and the support plate (3) are respectively fixedly connected to the frame (1); The feeder is composed of a feeding chute (16), a blocking mechanism, a pushing cylinder (17), an adjusting frame and a positioning block (18). A blocking mechanism is provided on one side of the tail end of the feeding chute (16), a pushing cylinder (17) is provided on the blocking mechanism, a positioning block (18) is installed in front of the tail end of the feeding chute (16) through the adjusting frame, and a V-shaped groove (19) is provided on the positioning block (18); a push head (20) is correspondingly provided at the end of the piston rod of the pushing cylinder (17) and the V-shaped groove (19); the feeding chute (16) is arranged in an inclined shape, and the feeding chute (16) is fixedly connected to the frame (1) through the mounting plates arranged at intervals; The adjusting frame is composed of a support block (28), a set screw (29), an angle positioning block (30), a telescopic rod (31), an adjusting nut (32) and a spring (33). The angle positioning block (30) is installed on the support block (28) through the set screw (29), the telescopic rods (31) are arranged in parallel and movably inserted on the angle positioning block (30), the adjusting nut (32) is threadedly installed at the end of the telescopic rod (31) below the angle positioning block (30), the end of the telescopic rod (31) above the angle positioning block (30) is fixedly connected to the positioning block (18), and a spring (33) is sleeved on the telescopic rod (31) between the angle positioning block (30) and the positioning block (18); the support block (28) is fixedly connected to the frame (1); A color sensor (34) for detecting the shock absorber sleeve on the steering device on the conveyor belt is provided on the frame (1) above the oil sump (2).

2. The roll coating device for the rubber oil of the steering damper sleeve according to claim 1, characterized in that: The oil coating roller is composed of an assembly shaft (5), sheet-shaped oil-absorbing cotton wheels (6) and locking nuts (7). A plurality of oil-absorbing cotton wheels (6) are sleeved on the assembly shaft (5), and the locking nuts (7) are threadedly installed on the assembly shaft (5) outside the oil-absorbing cotton wheels (6), and the locking nuts (7) are abutted and connected to the oil-absorbing cotton wheels (6).

3. A rolling coating device for the rubber oil of a steering gear shock absorber sleeve according to claim 1, characterized in that: A positioning plate (8) is provided on the frame (1) below the conveyor belt. The top end of the positioning plate (8) abuts against the assembly shaft (5) of the oil coating roller at the lower end of the support plate (3), the bottom end of the positioning plate (8) is provided with an adjusting hole (9), and the positioning plate (8) is fixedly connected to the frame (1) through the adjusting hole (9) and fixing bolts; 4. A rolling coating device for a rubber oil of a steering gear shock absorber sleeve according to claim 1, characterized in that: The conveyor belt described above is composed of support rollers (10), a belt body (11), sleeve rods (12) and a conveyor motor (13). The belt body (11) is arranged between the juxtaposed support rollers (10), and the sleeve rods (12) are evenly distributed on the outer surface of the belt body (11); a conveyor motor (13) is arranged above the support rollers (10), and the output shaft of the conveyor motor (13) is connected to the support rollers (10); the bottom ends of the support rollers (10) are movably connected to the frame (1) through bearings, and the conveyor motor (13) is fixedly connected to the frame.

5. A rolling coating device for a rubber oil of a steering gear shock absorber sleeve, characterized in that: A limiting flange (14) is arranged on the support roller (10) below the belt body (11), and the limiting flange (14) is in abutting connection with the bottom end face of the belt body (11); a limiting sleeve (15) is arranged on the support roller (10) above the belt body (11), the limiting sleeve (15) is connected to the support roller (10) through a bearing, and the bottom end face of the limiting sleeve (15) is in abutting connection with the top end face of the belt body (11); the top ends of the support rollers (10) are connected to the frame (1) through the limiting sleeve (15) and bearings.

6. The roll coating device for the rubber oil of the steering gear shock absorber sleeve according to claim 1, characterized in that: The blocking mechanism is composed of an assembly plate (21), a lifting cylinder (22), a lower stop rod (23), a swing arm (24) and an upper stop rod (25). The assembly plate (21) is in an inverted L shape, and a lifting cylinder (22) is installed at the top end of the assembly plate (21), and a lower stop rod (23) is arranged on the piston rod of the lifting cylinder (22); a swing arm (24) is installed on the assembly plate (21) below the lifting cylinder (22) through an assembly short shaft (26), one end of the swing arm (24) is in abutting connection with a follower flange (27) on the lower stop rod (23), and the other end of the swing arm (24) is installed with an upper stop rod (25) through a pin; the assembly plate (21) is fixedly connected to the frame (1) and the pushing cylinder (17) respectively.

7. A rolling coating device for a rubber oil of a steering gear shock absorber sleeve, characterized in that: A connection head (35) is arranged on the frame (1) outside the oil sump (2), an oil injection pipe (36) is arranged on the frame (1) between the connection head (35) and the oil sump (2), and the connection head (35) is communicated with the oil sump (2) through the oil injection pipe (36).

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