Drum-shaped roller automatic polishing device

Abstract

This invention belongs to the field of workpiece polishing, specifically an automatic polishing device for drum-shaped rollers. It includes a centerless grinder, which contains a grinding wheel for polishing the rollers, a guide wheel for controlling the roller's rotation and feed, and a support plate for supporting the rollers. A spray plate for cooling and lubricating the rollers and grinding wheel is located directly above the support plate inside the centerless grinder. A first cylinder is fixedly mounted on the top of the centerless grinder via a mounting plate. A hanging basket is fixedly connected to the output end of the first cylinder, with an opening on one side facing the support plate. A sliding plate is slidably mounted on the bottom of the hanging basket. A drying cylinder is located on one side of the centerless grinder, with a feed inlet on the side facing the centerless grinder. By setting up the first cylinder and the drying cylinder, the polished rollers can be conveyed and dried, reducing surface moisture and improving the quality of subsequent processing steps such as spraying and assembly.

Description

Technical Field

[0001] This invention relates to the field of workpiece polishing, specifically an automatic polishing device using a drum-shaped roller. Background Technology

[0002] The tappet is a crucial moving component in the oil pump. When the outer diameter surface of the roller is subjected to downward pressure from the cam, the middle part of the outer diameter surface undergoes microscopic deformation due to frequent stress. The two ends of the roller will experience more significant stress deformation, causing the stress on the two sides of the cam surface that moves with the roller to be greater than that in the middle, resulting in an edge effect and accelerating the wear between the roller and the cam. Therefore, it is necessary to design a roller with the two sides slightly lower than the middle. This way, when the outer diameter surface of the roller is subjected to stress, the two sides can bulge and form an effective support surface along the entire length with the middle. At the same time, since the roller is used in a high-load working environment, according to the design requirements, the convexity in the middle needs to be smaller and gentler, while the convexity on both sides needs to be larger. This allows the two sides to play a load-bearing role after deformation under stress without causing an edge effect. This type of roller is called a "drum roller".

[0003] Because the roller's profile is a log-shaped line with a large drop at both ends and a gentle slope in the middle, a more perfect profile can be ground using a special contouring tool in conjunction with specific parameters of a centerless grinder. By finely adjusting the grinding parameters, the centerless grinder can efficiently grind the roller's outer diameter to a strict dimensional tolerance range in one pass, while simultaneously achieving extremely low surface roughness, ensuring smooth and durable rolling contact between the roller and the cam during engine operation.

[0004] The working principle of a centerless grinder is based on the workpiece being in a "centerless" free-floating state within the grinding zone. The workpiece is placed on a support plate located between a high-speed rotating grinding wheel and a low-speed guide wheel. The friction generated by the guide wheel drives its rotation and axial movement. During this process, a powerful spray system continuously sprays sufficient coolant onto the contact point between the grinding wheel and the workpiece. Its core function is to promptly remove the large amount of heat generated during grinding, preventing thermal deformation of the workpiece; simultaneously, it washes away grinding debris, maintaining the sharpness and self-sharpening effect of the grinding wheel, thereby ensuring the dimensional accuracy and surface quality of the workpiece.

[0005] During use and observation, it was found that after the rollers were ground by a centerless grinder, the surface was covered with coolant and was in a wet state, which made it difficult to directly proceed to the next step, such as spraying or assembly, thus affecting the continuity of the processing.

[0006] Therefore, an automatic grinding and polishing device with a drum-shaped roller is proposed to address the above problems. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by this invention to solve its technical problem is as follows: An automatic polishing device for drum-shaped rollers, comprising a centerless grinder, wherein the centerless grinder is provided with a grinding wheel for polishing the rollers, a guide wheel for controlling the rotation and feed of the rollers, and a support plate for supporting the rollers; a spray plate for cooling and lubricating the rollers and grinding wheel is provided directly above the support plate inside the centerless grinder; a first cylinder is fixedly mounted on the top of the centerless grinder via a mounting plate; a hanging basket is fixedly connected to the output end of the first cylinder, and one side of the hanging basket has an opening facing the support plate. The bottom of the hanging basket is equipped with a sliding plate; a drying cylinder is provided on one side of the centerless grinder; the drying cylinder has a feed inlet on the side facing the centerless grinder; a discharge outlet is provided at the bottom of the drying cylinder; an air inlet pipe is connected to the top of the drying cylinder, and a hot air supply device is connected to the end of the air inlet pipe; a guide plate is fixed to the inner wall of the drying cylinder, and the guide plate has a spiral structure; a conveyor is provided at the bottom of the drying cylinder; by setting up the first cylinder and the drying cylinder, the polished rollers can be conveyed and dried to reduce the surface moisture of the rollers and improve the quality of subsequent processing steps such as spraying and assembly.

[0009] Preferably, the drying cylinder is symmetrically connected to a rotating shaft via an ear plate; multiple gearboxes are fixedly connected to both sides of the drying cylinder; a first bevel gear and a second bevel gear are meshed inside the gearboxes; the first bevel gear and the rotating shaft are fixedly connected; a crossbar is fixedly connected to one end of the second bevel gear, and the end of the crossbar extends into the interior of the drying cylinder; multiple rubber plates are provided on the outer wall of the crossbar; the drying cylinder is provided with a power assembly for driving the rotating shaft to rotate; by setting multiple crossbars and rubber plates, the roller can consume kinetic energy multiple times when sliding down the guide plate, reducing the sliding speed of the roller, increasing the contact time between the roller and the hot airflow, and also making the roller fall more smoothly onto the conveyor.

[0010] Preferably, the power assembly includes a geared motor fixedly mounted on the drying drum; a belt is fitted between the output end of the geared motor and a pair of rotating shafts; a driven shaft is connected to the crossbar via a key, and the inner wall of the driven shaft has a wide keyway that allows the driven shaft to rotate in the opposite direction relative to the crossbar; the rubber plate is fixedly connected to the driven shaft; a torsion spring is installed between the crossbar and the driven shaft; the geared motor can reduce the power output to the crossbar and the rubber plate. During normal operation, the crossbar can drive the rubber plate directly connected to the driven shaft to rotate counterclockwise, the torsion spring is in its normal state, and the roller is in its driven state. The rollers are conveyed from right to left. When the rollers come into contact with the rubber plate, the force exerted by the rollers on the rubber plate causes the rubber plate and the driven shaft to rotate clockwise relative to the crossbar along the wide keyway. During this process, the torsion spring can be in a torsional state to ensure that the rollers are not "stopped" due to the physical obstruction of the rubber plate. As the rollers continue to roll and move away from the rubber plate, the torsion spring can then apply torque to the driven shaft and restore it to the initial state described above. It is worth mentioning that anti-reverse components, such as elastic retaining rings, should be installed on both sides of the driven shaft to lock its axial position to the crossbar.

[0011] Preferably, the inner wall of the grinding wheel is symmetrically connected to two pairs of rollers; a conveyor belt is sleeved between adjacent pairs of rollers; a bearing plate is fixed to the outer wall of the conveyor belt; multiple counterweights are provided on the inner wall of the bearing plate at the bottom; in the initial state, the conveyor belt can be kept stable by the weight of the multiple bearing plates evenly distributed on its surface and the counterweights inside the bearing plates. When the roller falls from the guide plate to the discharge port, the roller can fall onto a pair of bearing plates arranged laterally inside the pair of conveyor belts. During the process, the roller squeezes the bearing plate, which can drive the bearing plate to rotate along with the conveyor belt and the pair of rollers, so as to further consume the kinetic energy of the roller before it falls onto the conveyor and reduce the rolling situation after the roller falls onto the conveyor.

[0012] Preferably, a second cylinder is fixedly connected to the outer wall of the hanging basket; the output end of the second cylinder and the end of the slide plate are fixedly connected; a stop plate is fixedly connected to the top of the slide plate; the stop plate is arc-shaped on the side facing the centerless grinder and chamfered on the other side; by setting the second cylinder, when it is necessary to release the roller from the hanging basket, the slide plate can be driven to move laterally along the hanging basket by activating the second cylinder, so that the roller falls into the feed port. At the same time, by setting the stop plate, one side is arc-shaped to facilitate the roller to slide from the support plate into the top of the slide plate, and the chamfer on the other side is to apply a spatial limiting effect to the roller at the top of the slide plate, reducing the possibility of the roller coming off when the hanging basket moves.

[0013] Preferably, the top of the hanging basket is threadedly connected to a pair of screws via an mounting plate; a horizontal plate is rotatably connected to the bottom of the pair of screws; vertical plates are symmetrically fixed to the bottom of the horizontal plates; an elastic body is fixed to one side of the pair of vertical plates facing each other; by setting a pair of vertical plates, lateral guidance and constraint can be provided for the rollers when they enter the hanging basket, which can further reduce the movement of the rollers on the hanging basket. At the same time, the setting of the elastic body can reduce the compression between the rollers and the vertical plates. The elastic body can be made of rubber, which can reduce scratches on the roller surface. The setting of the screws can adjust the height of the horizontal plate by rotating a pair of screws, which can adapt to the size of the rollers.

[0014] Preferably, a water collection tank is fixedly connected to the side of the centerless grinder facing the drying cylinder; a drainage groove is provided on the inner wall of the centerless grinder, the drainage groove is inclined and its end is located above the drainage groove; a filter screen is fixedly connected to the inner wall of the water collection tank; by setting the drainage groove, the wastewater generated by the spraying plate during operation can be discharged into the water collection tank through the drainage groove, realizing the centralized recycling of wastewater, and at the same time, the filter screen can isolate solid debris in the wastewater to achieve solid-liquid separation of wastewater.

[0015] Preferably, a baffle plate is fixedly connected to the side of the water collection tank facing the drying cylinder, and the baffle plate is inclined; a sponge is fixedly connected to the inner wall of the baffle plate; a grid is provided on the top of the slide plate; by setting the baffle plate and the grid, when the first cylinder is started to drive the hanging basket to move with the rollers, the cooling water dripping from the surface of the rollers can be discharged through the grid, reducing the water stains accumulated on the slide plate. At the same time, the baffle plate can collect the water droplets dripping when the hanging basket moves. Here, the vertical projection of the hanging basket should be covered by the sponge. In addition, the sponge can cushion the water droplets when they fall onto the baffle plate, reducing the splashing when the water droplets fall directly.

[0016] Preferably, the inner wall of the feed inlet is rotatably connected with multiple ball bearings; by setting the ball bearings, the sliding resistance between the roller and the feed inlet can be further reduced, which facilitates the stable movement of the roller as it slides from the feed inlet into the drying cylinder.

[0017] Preferably, the centerless grinder further includes a profile plate for dressing the grinding wheel and guide wheel; the profile plate includes two arc-shaped sections on both sides and a straight section in the middle; by setting the profile plate, the guide wheel and grinding wheel can be dressed to a predetermined shape. The dressing principle can be found in a Chinese patent with publication number CN208196393U. This setting allows the roller to be ground at the end chamfer when it moves through the first arc, the middle part of the roller can be ground when it passes through the middle position, and the other end chamfer can be ground when it passes through the second arc. After passing through the three contour-shaped grinding areas, the outer diameter surface of the roller with large drum shape at both ends and flat in the middle is basically formed.

[0018] The advantages of this invention are: 1. The automatic polishing device for drum-shaped rollers described in this invention, by setting a first cylinder and a drying cylinder, can convey and dry the polished rollers, reduce the surface moisture of the rollers, and improve the quality of subsequent processing steps such as spraying and assembly. In addition, the cooperation between the drying cylinder and the guide plate can also simplify the space occupied by traditional conveyor belt drying equipment, reduce the space occupied by the drying equipment, and at the same time, the static state of the rollers is broken during the tumbling and descending process, so that all parts of the rollers can be fully exposed to the hot airflow, achieving dynamic drying.

[0019] 2. The automatic polishing device for drum-shaped rollers described in this invention, by setting multiple crossbars and rubber plates, allows the rollers to consume kinetic energy multiple times when sliding down the guide plate, reducing the sliding speed of the rollers, increasing the contact time between the rollers and the hot airflow, and also allowing the rollers to land more smoothly on the conveyor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main body of the present invention; Figure 2 This is a schematic diagram of the centerless grinding machine in this invention; Figure 3 This is a schematic diagram of the structure of the first cylinder in this invention; Figure 4 This is a schematic diagram of the hanging basket structure in this invention; Figure 5 This is a schematic diagram of the skateboard structure in this invention; Figure 6 This is a schematic diagram of the drying cylinder in this invention; Figure 7 This is a schematic diagram of the gearbox structure in this invention; Figure 8 This is a schematic diagram of the structure of the first bevel gear in this invention; Figure 9 This is a schematic diagram of the structure of the rubber sheet in this invention; Figure 10 This is a schematic diagram of the driven shaft in this invention. Figure 11 This is a schematic diagram of the discharge port structure in this invention; Figure 12 This is a schematic diagram of the water collection tank in this invention; Figure 13This is a schematic diagram of the contour plate in this invention.

[0022] In the diagram: 1. Centerless grinder; 12. Grinding wheel; 13. Guide wheel; 14. Support plate; 141. Spray plate; 15. First cylinder; 16. Hanging basket; 17. Slide plate; 18. Drying cylinder; 19. Feed inlet; 110. Air inlet pipe; 111. Guide plate; 112. Discharge outlet; 113. Conveyor; 2. Shaft; 22. Gearbox; 23. First bevel gear; 24. Second bevel gear; 25. Crossbar; 26. 1. Rubber sheet; 3. Gear motor; 32. Driven shaft; 33. Torsion spring; 4. Roller; 42. Conveyor belt; 43. Support plate; 44. Counterweight; 5. Second cylinder; 52. Anti-reverse plate; 6. Screw; 62. Horizontal plate; 63. Vertical plate; 64. Elastomer; 7. Drainage trough; 72. Water collection trough; 73. Filter screen; 8. Water baffle; 82. Sponge; 83. Grating; 9. Ball bearing; 10. Contouring plate; a. Roller. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1 to 12 As shown in the embodiment of the present invention, an automatic grinding and polishing device for a drum-shaped roller includes a centerless grinder 1. The centerless grinder 1 contains a roller a, a grinding wheel 12 for grinding and polishing the roller a, a guide wheel 13 for controlling the rotation and feed of the roller a, and a support plate 14 for supporting the roller a. A spray plate 141 for cooling and lubricating the roller a and the grinding wheel 12 is located directly above the support plate 14 inside the centerless grinder 1. A first cylinder 15 is fixedly mounted on the top of the centerless grinder 1 via a mounting plate. The output end of the first cylinder 15 is fixedly connected to... The equipment includes a hanging basket 16 with an opening on one side facing the support plate 14; a sliding plate 17 is mounted on the bottom of the hanging basket 16; a drying cylinder 18 is mounted on one side of the centerless grinder 1; a feed inlet 19 is located on the side of the drying cylinder 18 facing the centerless grinder 1; a discharge outlet 112 is located at the bottom of the drying cylinder 18; an air inlet pipe 110 is connected to the top of the drying cylinder 18, and a hot air supply device is connected to the end of the air inlet pipe 110; a guide plate 111 with a spiral structure is fixed to the inner wall of the drying cylinder 18; and a conveyor 113 is located at the bottom of the drying cylinder 18. During operation, the support plate 14 on the centerless grinder 1 can be fed by mechanical grippers or manually. After the roller a is placed on the support plate 14, it can be driven by the slowly rotating guide wheel 13 to rotate and move radially. The outer wall of the roller a is polished by the rapidly rotating grinding wheel 12. During the process, the spray plate 141 can spray coolant onto the grinding wheel 12 and the roller a to assist the polishing process. The coolant here can be cooling water. After polishing, roller a can detach from guide wheel 13 and slide into basket 16. Then, by activating the first cylinder 15, basket 16 can be moved laterally, carrying roller a to drying cylinder 18 and positioned above inlet 19. Slide plate 17 can then be opened electrically, causing roller a to fall into inlet 19 by gravity and enter drying cylinder 18. Roller a then falls onto guide plate 111 and spirals down within drying cylinder 18 along its spiral structure. During this process, hot air supply equipment connected to the end of air inlet pipe 110 is activated, allowing hot air to enter drying cylinder 18 through air inlet pipe 110. The combined effect of heat and airflow dries any residual liquid on the surface of roller a. Meanwhile, the spiral structure of the guide plate 111 also forces an increase in the contact time between the roller a and the hot airflow. Finally, the dried roller a can be discharged through the discharge port 112 and fall onto the conveyor 113, which will then transport it to the next processing area. By setting the first cylinder 15 and the drying cylinder 18, the polished roller a can be conveyed and dried, reducing the surface moisture of the roller a and improving the quality of subsequent processing steps such as spraying and assembly. In addition, the cooperation between the drying cylinder 18 and the guide plate 111 can also simplify the space occupied by the traditional conveyor belt drying equipment and reduce the space occupied by the drying equipment. At the same time, the static state of the roller a is broken during the rolling and falling process, so that all parts of the roller a can be fully exposed to the hot airflow, achieving dynamic drying.

[0026] Please see Figures 6 to 8 As shown, a rotating shaft 2 is symmetrically rotatably connected to the drying cylinder 18 via ear plates; multiple gearboxes 22 are fixedly connected to both sides of the drying cylinder 18; a first bevel gear 23 and a second bevel gear 24 are meshed inside the gearboxes 22; the first bevel gear 23 and the rotating shaft 2 are fixedly connected; a crossbar 25 is fixedly connected to one end of the second bevel gear 24, and the end of the crossbar 25 extends into the interior of the drying cylinder 18; multiple rubber plates 26 are provided on the outer wall of the crossbar 25; and a power assembly for driving the rotating shaft 2 to rotate is provided on the drying cylinder 18. As roller a spirals downwards on guide plate 111, a pair of rotating shafts 2 can be driven by a power assembly to rotate, thereby slowing down roller a. Specifically, when the rotating shafts 2 rotate, they mesh with a first bevel gear 23 and a second bevel gear 24. The second bevel gear 24 rotates under the meshing action of the first bevel gear 23. The crossbar 25 and the directly connected rubber plate 26 rotate synchronously with the second bevel gear 24. Since the rubber plate 26 is located within the pitch range of guide plate 111, the rotation of multiple rubber plates 26 will create physical resistance to the roller a rolling on guide plate 111, thereby continuously consuming the kinetic energy converted from potential energy during the descent of roller a. On the one hand, this increases the heat resistance between roller a and the ground. The contact time of the airflow also allows roller a to fall stably onto the conveyor 113 when it is discharged from the outlet 112. At the same time, due to the elasticity of the rubber plate 26, damage to the surface of roller a or collisions caused by knocking roller a are reduced when it comes into contact with roller a. It is worth mentioning that the rotation speed of the rubber plate 26 should not be too fast to avoid knocking or even knocking roller a away when it collides with roller a. By setting multiple crossbars 25 and rubber plates 26, roller a can consume kinetic energy multiple times when it slides down the guide plate 111, reducing the downward speed of roller a, increasing the contact time between roller a and the hot airflow, and making roller a fall onto the conveyor 113 more smoothly.

[0027] Please see Figures 8 to 10 As shown, the power assembly includes a geared motor 3 fixedly mounted on the drying drum 18; a belt is fitted between the output end of the geared motor 3 and a pair of rotating shafts 2; a driven shaft 32 is connected to the crossbar 25 by a key, and the inner wall of the driven shaft 32 is provided with a wide keyway that allows the driven shaft 32 to rotate in the opposite direction relative to the crossbar 25; the rubber plate 26 is fixedly connected to the driven shaft 32; a torsion spring 33 is installed between the crossbar 25 and the driven shaft 32. The geared motor 3 can reduce the power output to the crossbar 25 and the rubber plate 26, so as to... Figure 10 For example, during normal operation, the crossbar 25 can drive the rubber plate 26 directly connected to the driven shaft 32 to rotate counterclockwise. The torsion spring 33 is in its normal state, while the roller a rolls from right to left. When the roller a contacts the rubber plate 26, the force applied by the roller a to the rubber plate 26 can cause the rubber plate 26 and the driven shaft 32 to rotate clockwise "in the opposite direction" relative to the crossbar 25 along the wide keyway. During this process, the torsion spring 33 can be in a torsional state to ensure that the roller a will not be "stopped" due to the physical obstruction of the rubber plate 26. As the roller a continues to roll and moves away from the rubber plate 26, the torsion spring 33 can then apply torque to the driven shaft 32 and restore it to the above initial state. It is worth mentioning that anti-reverse components, such as elastic retaining rings, should be installed on both sides of the driven shaft 32 to lock its axial position to the crossbar 25.

[0028] Please see Figure 9As shown, two pairs of rollers 4 are symmetrically rotatably connected to the inner wall of the grinding wheel 12; a conveyor belt 42 is sleeved between adjacent pairs of rollers 4; a support plate 43 is fixed to the outer wall of the conveyor belt 42; and multiple counterweights 44 are provided on the inner wall of the support plate 43 located at the bottom. In the initial state, the conveyor belt 42 is stable under the gravity of the bearing plate 43 with the additional counterweight 44 at the bottom. When the roller a falls from the guide plate 111 to the discharge port 112, the roller a can fall onto the pair of bearing plates 43 arranged laterally inside the pair of conveyor belts 42. During the process, the roller a squeezes the bearing plate 43, which can drive the bearing plate 43 to rotate along with the conveyor belt 42 and the pair of rollers 4, so as to further consume the kinetic energy of the roller a before it falls onto the conveyor 113 and reduce the rolling situation after the roller a falls onto the conveyor 113. In addition, in order to ensure the stable operation of the above movement, there is a certain time difference between the two adjacent rollers a during drying. That is, at the same time, only one roller a is drying in the drying cylinder 18. During the time difference between the previous roller a leaving the bearing plate 43 and the next roller a contacting the bearing plate 43, it should be ensured that the conveyor belt 42 can automatically complete the reset through the bearing plate 43 with the counterweight 44.

[0029] Please see Figure 4 and Figure 5 As shown, a second cylinder 5 is fixedly connected to the outer wall of the hanging basket 16; the output end of the second cylinder 5 and the end of the slide plate 17 are fixedly connected; a stop plate 52 is fixedly connected to the top of the slide plate 17; the stop plate 52 is arc-shaped on the side facing the centerless grinder 1 and chamfered on the other side. By setting the second cylinder 5, when it is necessary to release roller a from the hanging basket 16, the second cylinder 5 can be activated to drive the slide plate 17 to move laterally along the hanging basket 16 so that roller a falls into the feed port 19. At the same time, by setting the anti-reverse plate 52, one side of its arc shape is set to facilitate roller a to slide from the support plate 14 into the top of the slide plate 17, and the other side of its chamfer is set to apply a spatial limit to roller a at the top of the slide plate 17, reducing the possibility of roller a falling out when it moves with the hanging basket 16.

[0030] Please see Figure 5 As shown, the top of the hanging basket 16 is threadedly connected to a pair of screws 6 via an mounting plate; the bottom of the pair of screws 6 is rotatably connected to a horizontal plate 62; the bottom of the horizontal plate 62 is symmetrically fixed to a vertical plate 63; and an elastic body 64 is fixed to one side of the pair of vertical plates 63 facing each other. By setting a pair of upright plates 63, lateral guidance and constraint can be provided when roller a enters the hanging basket 16, which can further reduce the movement of roller a on the hanging basket 16. At the same time, the setting of the elastic body 64 can reduce the compression between roller a and the upright plate 63. The elastic body 64 can be made of rubber, which can reduce the scratches on the surface of roller a. The setting of the screw 6 can adjust the height of the horizontal plate 62 by rotating a pair of screws 6, which can adapt to the size of roller a to a certain extent.

[0031] Please see Figure 3 and Figure 10 As shown, a water collection tank 72 is fixedly connected to the side of the centerless grinder 1 facing the drying cylinder 18; a drainage groove 7 is provided on the inner wall of the centerless grinder 1, the drainage groove 7 is inclined and its end is located above the drainage groove 7; a filter screen 73 is fixedly connected to the inner wall of the water collection tank 72. By setting up a drainage trough 7, the wastewater generated by the spraying plate 141 during operation can be discharged into the water collection tank 72 through the drainage trough 7, realizing centralized recycling of wastewater. At the same time, the filter screen 73 can isolate solid debris in the wastewater to achieve solid-liquid separation of wastewater.

[0032] Please see Figure 10 As shown, a baffle plate 8 is fixedly connected to the side of the water collection tank 72 facing the drying cylinder 18, and the baffle plate 8 is inclined; a sponge 82 is fixedly connected to the inner wall of the baffle plate 8; and a grid 83 is provided on the top of the slide plate 17. By setting up the baffle plate 8 and the grille 83, when the first cylinder 15 is activated to drive the hanging basket 16 to move with the roller a, the cooling water dripping from the surface of the roller a can be discharged through the grille 83, reducing the water stains accumulated on the slide plate 17. At the same time, the baffle plate 8 can collect the water droplets dripping when the hanging basket 16 moves. Here, the vertical projection of the hanging basket 16 should be covered by the sponge 82. In addition, the sponge 82 can cushion the water droplets when they fall onto the baffle plate 8, reducing the splashing that occurs when the water droplets fall directly.

[0033] Please see Figure 6 and Figure 7 As shown, a plurality of ball bearings 9 are rotatably connected to the inner wall of the feed inlet 19; By setting the ball bearing 9, the sliding resistance between the roller a and the feed inlet 19 can be further reduced, which facilitates the stable movement of the roller a as it slides from the feed inlet 19 into the drying cylinder 18.

[0034] Please see Figure 11 As shown, the centerless grinder 1 also includes a profile plate 10 for dressing the grinding wheel 12 and the guide wheel 13; the profile plate 10 includes arc-shaped sections on both sides and a straight section in the middle; By setting the contour plate 10, the guide wheel 13 and the grinding wheel 12 can be dressed to a predetermined shape. The dressing principle can be referred to a Chinese patent with publication number CN208196393U. This setting allows the roller a to be ground at the end chamfer when it moves through the first arc, the middle part of the roller a can be ground when it passes through the middle position, and the other end chamfer can be ground when it passes through the second arc. After passing through the three contour-shaped grinding areas, the outer diameter surface of the roller a, which is bulging at both ends and flat in the middle, is basically formed.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A drum roller automatic polishing device, characterized in that: The centerless grinder (1) includes a roller (a), a grinding wheel (12) for polishing the roller (a), a guide wheel (13) for controlling the rotation and feed of the roller (a), and a support plate (14) for supporting the roller (a). A spray plate (141) for cooling and lubricating the roller (a) and the grinding wheel (12) is provided directly above the support plate (14) in the centerless grinder (1). The top of the centerless grinder (1) is fixedly provided with a first cylinder (15) by a mounting plate; a hanging basket (16) is fixedly connected to the output end of the first cylinder (15), and an opening facing the support plate (14) is provided on one side of the hanging basket (16); a sliding plate (17) is provided at the bottom of the hanging basket (16). A drying cylinder (18) is provided on one side of the centerless grinder (1); a feed inlet (19) is provided on the side of the drying cylinder (1) facing the centerless grinder (1); a discharge outlet (112) is provided at the bottom of the drying cylinder (18); an air inlet pipe (110) is connected to the top of the drying cylinder (18), and a hot air supply device is connected to the end of the air inlet pipe (110); a guide plate (111) is fixed to the inner wall of the drying cylinder (18), and the guide plate (111) has a spiral structure; a conveyor (113) is provided at the bottom of the drying cylinder (18). The drying cylinder (18) is symmetrically connected to a rotating shaft (2) via an ear plate; multiple gearboxes (22) are fixedly connected to both sides of the drying cylinder (18); a first bevel gear (23) and a second bevel gear (24) are meshed inside the gearboxes (22); the first bevel gear (23) and the rotating shaft (2) are fixedly connected; a crossbar (25) is fixedly connected to one end of the second bevel gear (24), and the end of the crossbar (25) extends into the interior of the drying cylinder (18); multiple rubber plates (26) are provided on the outer wall of the crossbar (25); the drying cylinder (18) is provided with a power assembly for driving the rotating shaft (2) to rotate; The power assembly includes a geared motor (3) fixedly mounted on the drying drum (18); a belt is fitted between the output end of the geared motor (3) and a pair of rotating shafts (2); a driven shaft (32) is connected to the crossbar (25) by a key, and the inner wall of the driven shaft (32) is provided with a wide keyway that allows the driven shaft (32) to rotate in the opposite direction relative to the crossbar (25); the rubber plate (26) is fixedly connected to the driven shaft (32); a torsion spring (33) is installed between the crossbar (25) and the driven shaft (32), and the rubber plate (26) is located within the pitch range of the guide plate (111); The inner wall of the discharge port (112) is symmetrically connected to two pairs of rollers (4); a conveyor belt (42) is sleeved between adjacent pairs of rollers (4); a support plate (43) is fixed to the outer wall of the conveyor belt (42); multiple counterweights (44) are provided on the inner wall of the support plate (43) at the bottom. When the roller (a) falls from the guide plate (111) to the discharge port (112), the roller (a) falls onto a pair of support plates (43) arranged laterally on the inner side of a pair of conveyor belts (42). The roller (a) squeezes the support plate (43), driving the support plate (43) to rotate along with the conveyor belt (42) and the pair of rollers (4).

2. The automatic polishing device for drum-shaped rollers according to claim 1, characterized in that: The outer wall of the hanging basket (16) is fixedly connected to a second cylinder (5); the output end of the second cylinder (5) and the end of the slide plate (17) are fixedly connected; a backstop plate (52) is fixedly connected to the top of the slide plate (17); the backstop plate (52) is arc-shaped on one side facing the centerless grinder (1) and chamfered on the other side.

3. The automatic polishing device for drum-shaped rollers according to claim 2, characterized in that: The top of the hanging basket (16) is connected to a pair of screws (6) by a mounting plate; the bottom of the pair of screws (6) is rotatably connected to a horizontal plate (62); the bottom of the horizontal plate (62) is symmetrically fixed to a vertical plate (63); an elastic body (64) is fixed to one side of the pair of vertical plates (63) facing each other.

4. The automatic polishing device with a drum-shaped roller according to claim 3, characterized in that: The centerless grinder (1) has a water collection tank (72) fixedly connected to the side facing the drying cylinder (18); the inner wall of the centerless grinder (1) has a drainage groove (7), which is inclined and its end is located above the water collection tank (72); the inner wall of the water collection tank (72) has a filter screen (73) fixedly connected to it.

5. The automatic polishing device for drum-shaped rollers according to claim 4, characterized in that: A baffle plate (8) is fixedly connected to the side of the water collection tank (72) facing the drying cylinder (18), and the baffle plate (8) is inclined; a sponge (82) is fixedly connected to the inner wall of the baffle plate (8); a grid (83) is provided on the top of the slide plate (17).

6. The automatic polishing device for drum-shaped rollers according to claim 5, characterized in that: The inner wall of the feed inlet (19) is rotatably connected with multiple ball bearings (9).

7. The automatic polishing device for drum-shaped rollers according to claim 6, characterized in that: The centerless grinder (1) also includes a profile plate (10) for dressing the grinding wheel (12) and guide wheel (13); the profile plate (10) includes arc-shaped sections on both sides and a straight section in the middle.

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