Extruder thread element surface grinding equipment

Abstract

The invention discloses surface grinding equipment for a thread element of an extruder, and relates to the technical field of grinding and polishing. The device comprises a transmission assembly, the transmission assembly is fixedly connected with the inner wall of a fixed sleeve, the outer surface of the fixed sleeve is in transmission connection with the inner wall of a grinding abrasive belt, the inner wall of the grinding abrasive belt is in transmission connection with a deflection sleeve, and the inner wall of the deflection sleeve is rotationally connected with the outer surface of the end of a deflection assembly. The outer surface of the side, away from the deflection sleeve, of the deflection assembly is fixedly connected with the inner wall of the fixing support, the grinding abrasive belt has elasticity, and when the grinding abrasive belt grinds the screw, the grinding abrasive belt deforms, so that the grinding abrasive belt is attached to the surface of the screw, the screws of different diameters are ground, the elastic force of deformation of the grinding abrasive belt is recovered, and the grinding effect is improved. And the grinding abrasive belt can be pressed on the surface of the screw, so that the pressure is increased, the friction force is increased, and the grinding effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and polishing, and particularly relates to a surface grinding device for an extruder screw element. Background Art

[0002] According to the included angle between the headstock material flow direction and the screw center line, the headstock of an extruder can be divided into a right-angle headstock, an oblique-angle headstock, etc. A screw extruder relies on the pressure and shear force generated by the rotation of the screw to enable the material to be fully plasticized and evenly mixed, and is formed through a die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and rarely seen multi-screw extruders and screwless extruders; In a twin-screw extruder, various specifications of screw elements are sleeved on the mandrel according to different needs. The screw elements need to be polished during the production process. After rough grinding, in order to further improve the grinding accuracy, manual high-precision grinding of the screw elements is required. When grinding, the element to be ground needs to be held manually by an operator and ground with a sand belt. Since manual holding is very unstable, it is relatively easy to have grinding errors. Therefore, we propose a surface grinding device for an extruder screw element. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a surface grinding device for an extruder screw element, including: A base, and sleeve plates and fixed brackets symmetrically arranged on the top of the base; A fixing mechanism, which has a telescopic fixing structure for fixing different extruder screws; A grinding mechanism, which has a grinding structure for grinding the threaded surface of an extruder screw; The top of the base is fixedly connected to the sleeve plates and the side of the fixed brackets away from the grinding mechanism. The bottom of the fixing mechanism is fixedly connected to the top of the base, and both ends of the grinding mechanism are fixedly connected to the inner walls of the sleeve plates and the fixed brackets; Among them, the grinding mechanism includes: A transmission component, which is used to drive the operation of the grinding mechanism, and a fixed sleeve arranged at the end of the transmission component; A grinding sand belt, the outer surface of which has rough particles, and the grinding sand belt has elasticity for grinding the threaded surface of an extruder screw, and a deflection sleeve sleeved inside the grinding sand belt. The width of the grinding sand belt is equal to the gap width of the fixed sleeve, and the gap width of the deflection sleeve is greater than that of the fixed sleeve; A deflection component, which has a rotating structure for driving the grinding sand belt to change the grinding angle; The outer surface of the transmission component is fixedly connected to the inner wall of the sleeve plate. One side of the transmission component away from the sleeve plate is fixedly connected to the inner wall of the fixed sleeve. The outer surface of the fixed sleeve is drivingly connected to the inner wall of the abrasive belt. One side inner wall of the abrasive belt away from the fixed sleeve is drivingly connected to the deflection sleeve. The inner wall of the deflection sleeve is rotatably connected to the outer surface of the end of the deflection component. The outer surface of one side of the deflection component away from the deflection sleeve is fixedly connected to the inner wall of the fixed bracket. The fixing mechanism fixes the screw of the extruder. The transmission component drives the fixed sleeve to rotate. The fixed sleeve drives the abrasive belt to drive. The driving of the abrasive belt drives the surface of the deflection sleeve to rotate. The abrasive belt grinds the thread surface of the screw. The outer surface of the abrasive belt has rough particles, so that when the abrasive belt grinds the thread surface of the screw, the grinding efficiency is higher, and the grinding efficiency of the screw can be improved. And because the abrasive belt has elasticity, when the abrasive belt grinds a thicker screw, the abrasive belt deforms, so that the abrasive belt adheres to the surface of the screw, realizing the grinding of screws with different diameters. At the same time, the elastic force of the abrasive belt recovering from deformation can press the abrasive belt tightly against the surface of the screw, thereby increasing the pressure and friction force, and further improving the grinding effect. Since the inclination angles of the threads of different screws and even the threads of the same screw are different, in order to avoid the inappropriate inclination angle of the abrasive belt causing damage to the threads of the screw, the abrasive belt can slide on the surface of the deflection sleeve, thereby changing the deflection angle of the abrasive belt, so as to adapt to the threads with different inclination angles and avoid damage to the threads of the screw by the abrasive belt.

[0004] Further, cleaning grooves are formed on the outer surface of the abrasive belt, and a plurality of cleaning grooves are formed on the outer surface of the abrasive belt. Grooves are formed on the outer surface of the deflection sleeve. The grooves are inclined axially of the deflection sleeve, and a plurality of the grooves are arranged circumferentially of the deflection sleeve. When the abrasive belt grinds the screw, the waste chips generated by grinding are at the interval between the abrasive belt and the screw, which will cause the surface roughness of the abrasive belt to decrease, and even the abrasive belt to slip, resulting in a decrease in the grinding effect of the abrasive belt. By forming the cleaning grooves, the waste chips will enter the inside of the cleaning grooves, and the width of the cleaning grooves is relatively large. After the cleaning grooves are away from the screw, the waste chips can fall out of the cleaning grooves, so as to achieve the effect of cleaning the waste chips and avoid the decrease in the grinding effect of the abrasive belt. The circumferentially and axially inclined grooves can increase the friction force between the deflection sleeve and the inner wall of the abrasive belt, thereby preventing the deflection sleeve and the abrasive belt from slipping. At the same time, for the axially arranged grooves, when the abrasive belt slides on the surface of the deflection sleeve, it will not be subjected to too much resistance. When the abrasive belt is inserted into the thread of the screw and moves, it drives the abrasive belt to slide on the surface of the deflection sleeve, thereby automatically adjusting the inclination angle of the abrasive belt and avoiding damage to the threads of the screw.

[0005] Further, the transmission assembly includes a grinding motor, the outer surface of the grinding motor is fixedly connected to the inner wall of the sleeve plate, a grinding rotating shaft is arranged on one side of the grinding motor close to the grinding abrasive belt, and the output end of the grinding motor is fixedly connected to the end of the grinding rotating shaft. The outer surface of the grinding rotating shaft away from the grinding motor is fixedly connected to the inner wall of the fixed sleeve. During grinding, the grinding motor is started, the output end of the grinding motor drives the grinding rotating shaft to rotate, and the grinding rotating shaft drives the fixed sleeve to rotate, thereby driving the grinding abrasive belt to drive.

[0006] Further, the deflection assembly includes a rotating seat, the outer surface of the rotating seat is fixedly connected to the inner wall of the fixed bracket, a rotating ball is arranged on one side of the rotating seat away from the fixed bracket, and the outer surface of the rotating ball is rotatably connected to the inner wall of the rotating seat. A deflection rotating shaft is fixedly connected to one side of the rotating ball away from the rotating seat, and the outer surface of the deflection rotating shaft is rotatably connected to the inner wall of the deflection sleeve. When the grinding abrasive belt is deformed, the deflection sleeve is pulled to move, driving the deflection rotating shaft to move, thereby driving the rotating ball to rotate inside the rotating seat, thereby reducing the deformation degree of the grinding abrasive belt, avoiding the long-term deformation of the grinding abrasive belt, causing fatigue deformation of the grinding abrasive belt, thereby ensuring the service life of the grinding abrasive belt, and at the same time, it can also cooperate with the deflection sleeve to change the deflection angle of the grinding abrasive belt.

[0007] Further, a convex block is arranged at the interval between the rotating seat and the rotating ball. The outer surface of the convex block is fixedly connected to the inner wall of the rotating seat, and the outer surface of the convex block is slidably connected to the outer surface of the rotating ball. A plurality of convex blocks are arranged along the circumferential direction of the rotating seat, and the number of convex blocks is also several. When the rotating ball rotates inside the rotating seat, the rotating ball slides on the surface of the convex block. At the same time, since the convex block is made of rubber material, it can increase the friction between the rotating ball and the convex block, thereby avoiding the random rotation of the rotating ball in the rotating seat, thereby avoiding the random shaking of the grinding abrasive belt when driving the grinding screw, thereby improving the grinding efficiency.

[0008] Further, the fixing mechanism includes a slide table cylinder, the slide table cylinder is arranged at the interval between the sleeve plate and the fixed bracket, and the outer surface of the slide table cylinder is fixedly connected to the top of the base. A groove plate is arranged on one side of the slide table cylinder away from the base, and the output end of the slide table cylinder is fixedly connected to the outer surface of the groove plate. Fixing components are symmetrically arranged on both sides of the groove plate, and the inner wall of the fixing component is fixedly connected to the outer surface of the groove plate. The two symmetrically arranged fixing components fix the two ends of the screw. During grinding, the slide table cylinder is started, the output end of the slide table cylinder drives the groove plate to move, thereby driving the two fixing components to move, thereby driving the screw to move, so that the grinding abrasive belt can grind different parts of the screw, thereby grinding the entire screw.

[0009] Further, the fixing component includes a frame body, and the inner wall of the frame body is slidably connected to the inner wall of the groove plate. One side of the frame body away from the base is fixedly connected with a fixing plate. An expansion rod is arranged at the interval between the frame body and the groove plate, and one side of the expansion rod close to the fixing plate is fixedly connected with the inner wall of the frame body. The end of the expansion rod away from the frame body is fixedly connected with the outer surface of the groove plate. When the expansion rod is started, the expansion rod drives the frame body to move, so as to drive the change of the interval between the two fixing plates, so that the two fixing components can fix screws with different lengths.

[0010] Further, a rotating cylinder is fixedly connected to the inner wall of the fixing plate. A conical plate is fixedly connected to the inner wall of the rotating cylinder. The conical plate has a certain elasticity, and the number of the conical plates is several. Triangular grooves are formed on the outer surfaces of the several conical plates, and several triangular grooves are arranged along the circumferential direction of the conical plate. When the screw is inserted into the rotating cylinder, the screw presses the conical plate, and the conical plate deforms. Thus, under the elastic force of the conical plate recovering from deformation, the screw is pressed and fixed. By arranging the triangular grooves, the conical plate can deform uniformly around, so that the axis of the screw coincides with the axis of the rotating cylinder, thus avoiding the shaking of the screw when it rotates. Since the conical plate is conical, screws with different diameters can be fixed inside the conical plate.

[0011] Further, a sliding groove is formed in the top of the base, and the sliding groove is formed on the side away from the sliding table cylinder. A mounting seat is slidably connected to the inner wall of the sliding groove. A fixing motor is fixedly connected to the inner wall of the mounting seat. One side of the fixing motor close to the fixing plate is fixedly connected with a fixing rotating shaft, and the fixing rotating shaft is fixedly connected with the output end of the fixing motor. The end of the fixing rotating shaft away from the fixing motor is fixedly connected with the outer surface of the rotating cylinder. During grinding, the fixing motor is started to drive the fixing rotating shaft to rotate, drive the rotating cylinder to rotate, and the rotating cylinder drives the conical plate to rotate, so as to drive the screw to rotate, so that all parts in the circumferential direction of the screw can contact the grinding abrasive belt, thus grinding the surface of the whole screw. At the same time, when adjusting the distance between the two fixing components, the fixing plate moves, drives the rotating cylinder to move, drives the fixing rotating shaft to move, drives the fixing motor to move, and drives the mounting seat to move. The mounting seat slides inside the sliding groove.

[0012] Furthermore, limiting grooves are symmetrically formed at the top of the groove plate. A trolley is arranged on the top of the groove plate, and the rollers of the trolley are slidably connected inside the limiting grooves. Fixing bars are symmetrically arranged on one side of the trolley away from the groove plate, and the outer surfaces of the two fixing bars are fixedly connected to the trolley. Drums are symmetrically arranged at the intervals between the two fixing bars, and both fixing bars are rotatably connected to the inner walls of the two fixing bars through rotating rods. The screw is placed between the two drums, and the drums support the surface of the screw. Moving the trolley drives the fixing bars to move, and then drives the drums to move so as to support screws of different lengths, thereby preventing the screw from shaking when rotating, maintaining the grinding efficiency of the screw. The rotation of the screw drives the rotation of the drums, thus preventing the friction between the threads of the screw and the drums from damaging the threads.

[0013] The beneficial effects of the present invention are as follows: 1. By providing a grinding mechanism, the outer surface of the grinding abrasive belt has rough particles, so that when the grinding abrasive belt grinds the thread surface of the screw, the grinding efficiency is higher, which can improve the grinding efficiency of the screw. And because the grinding abrasive belt has elasticity, when the grinding abrasive belt grinds a thicker screw, the grinding abrasive belt deforms, so that the grinding abrasive belt adheres to the surface of the screw, realizing the grinding of screws with different diameters. At the same time, the elastic force of the grinding abrasive belt recovering from deformation can press the grinding abrasive belt tightly against the surface of the screw, thereby increasing the pressure and friction force, and further improving the grinding effect.

[0014] 2. By providing a cleaning groove, when the grinding abrasive belt grinds the screw, the waste chips generated by grinding are at the interval between the grinding abrasive belt and the screw, which will cause the surface roughness of the grinding abrasive belt to decrease, and even the grinding abrasive belt to slip, resulting in a decrease in the grinding effect of the grinding abrasive belt. By opening the cleaning groove, the waste chips will enter the cleaning groove, and the width of the cleaning groove is relatively large. After the cleaning groove is far away from the screw, the waste chips can fall out of the cleaning groove, thus achieving the effect of cleaning the waste chips and avoiding the decrease in the grinding effect of the grinding abrasive belt.

[0015] 3. By providing a deflection assembly, when the grinding abrasive belt deforms, it pulls the deflection sleeve to move, drives the deflection shaft to move, and then drives the rotating ball to rotate inside the rotating seat, thereby reducing the deformation degree of the grinding abrasive belt and preventing the grinding abrasive belt from being fatigued and deformed due to long-term deformation, thus ensuring the service life of the grinding abrasive belt. At the same time, it can also cooperate with the deflection sleeve to change the deflection angle of the grinding abrasive belt, avoiding the inappropriate inclination angle of the grinding abrasive belt from damaging the threads of the screw. The grinding abrasive belt can slide on the surface of the deflection sleeve, thereby changing the deflection angle of the grinding abrasive belt to adapt to the threads with different inclination angles and avoiding the grinding abrasive belt from damaging the threads of the screw.

[0016] 4. The present invention fixes screws of different lengths by setting fixing components. By opening triangular grooves, the conical plates can deform uniformly in all directions, so that the axis of the screw coincides with the axis of the rotating cylinder, thus avoiding shaking during the rotation of the screw. Since the conical plates are conical, screws of different diameters can be fixed inside the conical plates.

[0017] 5. The present invention sets rollers, and the screw is placed between two rollers. The rollers support the surface of the screw. Move the trolley, and the movement of the trolley drives the fixing bar to move, driving the rollers to move to support screws of different lengths, thus avoiding shaking during the rotation of the screw, maintaining the grinding efficiency of the screw. The rotation of the screw drives the rotation of the rollers, thus avoiding damage to the threads caused by friction between the threads of the screw and the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a surface grinding device for a screw element of an extruder according to the present invention; Figure 2 is a schematic diagram of the structure of the grinding mechanism according to the present invention; Figure 3 is a schematic diagram of the structure of the grinding abrasive belt according to the present invention; Figure 4 is a schematic diagram of the structure of the convex block according to the present invention; Figure 5 is a schematic diagram of the structure of the fixing mechanism according to the present invention; Figure 6 is a schematic diagram of the structure of the fixing component according to the present invention; Figure 7 is a schematic diagram of the structure of the conical plate according to the present invention; Figure 8 is a schematic diagram of the structure of the roller according to the present invention.

[0019] In the figure: 1. Base; 2. Sleeve plate; 3. Fixed bracket; 4. Fixing mechanism; 41. Slide table cylinder; 42. Groove plate; 43. Fixing component; 431. Frame; 432. Fixed plate; 433. Rotating cylinder; 434. Conical plate; 435. Fixed rotating shaft; 436. Fixed motor; 437. Mounting seat; 438. Chute; 439. Telescopic rod; 4310. Triangular groove; 44. Trolley; 45. Limit groove; 46. Fixing bar; 47. Roller; 5. Grinding mechanism; 51. Fixed sleeve; 52. Transmission component; 521. Grinding motor; 522. Grinding rotating shaft; 53. Grinding abrasive belt; 54. Cleaning groove; 55. Deflection sleeve; 56. Deflection component; 561. Rotating seat; 562. Rotating ball; 563. Deflection rotating shaft; 564. Convex block; 57. Groove body. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for specific purposes.

[0021] Example 1. Refer to Figures 1 - 4 , the present invention is a surface grinding device for an extruder screw element, including: A base 1, and a sleeve plate 2 and a fixed bracket 3 symmetrically arranged on the top of the base 1; A fixing mechanism 4, which has a telescopic fixing structure for fixing different extruder screws; A grinding mechanism 5, which has a grinding structure for grinding the thread surface of the extruder screw; The top of the base 1 is fixedly connected to the sleeve plate 2 and the side of the fixed bracket 3 away from the grinding mechanism 5. The bottom of the fixing mechanism 4 is fixedly connected to the top of the base 1. The two ends of the grinding mechanism 5 are respectively fixedly connected to the inner walls of the sleeve plate 2 and the fixed bracket 3; Among them, the grinding mechanism 5 includes: A transmission component 52, which is used to drive the operation of the grinding mechanism 5, and a fixed sleeve 51 arranged at the end of the transmission component 52; A grinding abrasive belt 53, the outer surface of which has rough particles, and the grinding abrasive belt 53 has elasticity for grinding the thread surface of the extruder screw, and a deflection sleeve 55 sleeved inside the grinding abrasive belt 53. The width of the grinding abrasive belt 53 is equal to the clearance width of the fixed sleeve 51, and the clearance width of the deflection sleeve 55 is greater than that of the fixed sleeve 51; A deflection component 56, which has a rotating structure for driving the grinding abrasive belt 53 to change the grinding angle; The outer surface of the transmission assembly 52 is fixedly connected to the inner wall of the sleeve plate 2. The side of the transmission assembly 52 away from the sleeve plate 2 is fixedly connected to the inner wall of the fixed sleeve 51. The outer surface of the fixed sleeve 51 is in transmission connection with the inner wall of the abrasive belt 53. The inner wall of the abrasive belt 53 away from the fixed sleeve 51 is in transmission connection with the deflection sleeve 55. The inner wall of the deflection sleeve 55 is rotationally connected to the outer surface of the end of the deflection assembly 56. The outer surface of the side of the deflection assembly 56 away from the deflection sleeve 55 is fixedly connected to the inner wall of the fixed bracket 3. The fixing mechanism 4 fixes the screw of the extruder. The transmission assembly 52 drives the fixed sleeve 51 to rotate. The fixed sleeve 51 drives the abrasive belt 53 to transmit. The transmission of the abrasive belt 53 drives the surface of the deflection sleeve 55 to rotate. The abrasive belt 53 grinds the thread surface of the screw. The outer surface of the abrasive belt 53 has rough particles, so that when the abrasive belt 53 grinds the thread surface of the screw, the grinding efficiency is higher, and the grinding efficiency of the screw can be improved. And because the abrasive belt 53 has elasticity, when the abrasive belt 53 grinds a thicker screw, the abrasive belt 53 deforms, so that the abrasive belt 53 adheres to the surface of the screw, realizing the grinding of screws with different diameters. At the same time, the elastic force of the abrasive belt 53 recovering from deformation can press the abrasive belt 53 against the surface of the screw, thereby increasing the pressure and friction force, and further improving the grinding effect. Since the inclination angles of the threads of different screws or even the threads of the same screw are different, in order to avoid the inappropriate inclination angle of the abrasive belt 53 causing damage to the threads of the screw by the abrasive belt 53, the abrasive belt 53 can slide on the surface of the deflection sleeve 55, thereby changing the deflection angle of the abrasive belt 53, so as to adapt to the threads with different inclination angles and avoid the abrasive belt 53 damaging the threads of the screw.

[0022] The outer surface of the grinding abrasive belt 53 is provided with cleaning grooves 54, and a number of cleaning grooves 54 are provided on the outer surface of the grinding abrasive belt 53. The outer surface of the deflection sleeve 55 is provided with grooves 57, and the grooves 57 are inclined with respect to the axial direction of the deflection sleeve 55, and a number of grooves 57 are arranged along the circumferential direction of the deflection sleeve 55. When the grinding abrasive belt 53 grinds the screw, the waste chips generated by grinding are at the interval between the grinding abrasive belt 53 and the screw, which will cause the surface roughness of the grinding abrasive belt 53 to decrease, and even the grinding abrasive belt 53 to slip, resulting in a decrease in the grinding effect of the grinding abrasive belt 53. By providing the cleaning grooves 54, the waste chips will enter the inside of the cleaning grooves 54, and the width of the cleaning grooves 54 is relatively large. Therefore, after the cleaning grooves 54 are far away from the screw, the waste chips can fall out of the cleaning grooves 54, so as to achieve the effect of cleaning the waste chips, thus avoiding the decrease in the grinding effect of the grinding abrasive belt 53. The grooves 57 inclined along the circumferential direction can increase the friction force between the deflection sleeve 55 and the inner wall of the grinding abrasive belt 53, thus avoiding slipping between the deflection sleeve 55 and the grinding abrasive belt 53. At the same time, for the axially arranged grooves 57, when the grinding abrasive belt 53 slides on the surface of the deflection sleeve 55, it will not be subject to excessive resistance, so that when the grinding abrasive belt 53 is clamped into the thread of the screw, the grinding abrasive belt 53 moves, driving the grinding abrasive belt 53 to slide on the surface of the deflection sleeve 55, thereby automatically adjusting the inclination angle of the grinding abrasive belt 53, thus avoiding damage to the thread of the screw.

[0023] The transmission assembly 52 includes a grinding motor 521, the outer surface of the grinding motor 521 is fixedly connected to the inner wall of the sleeve plate 2, a grinding rotating shaft 522 is arranged on one side of the grinding motor 521 close to the grinding abrasive belt 53, and the output end of the grinding motor 521 is fixedly connected to the end of the grinding rotating shaft 522. The outer surface of the grinding rotating shaft 522 on the side far away from the grinding motor 521 is fixedly connected to the inner wall of the fixed sleeve 51. During grinding, the grinding motor 521 is started, the output end of the grinding motor 521 drives the grinding rotating shaft 522 to rotate, and the grinding rotating shaft 522 drives the fixed sleeve 51 to rotate, thereby driving the grinding abrasive belt 53 to transmit.

[0024] The deflection assembly 56 includes a rotating seat 561, the outer surface of the rotating seat 561 is fixedly connected to the inner wall of the fixed bracket 3, a rotating ball 562 is arranged on one side of the rotating seat 561 far away from the fixed bracket 3, and the outer surface of the rotating ball 562 is rotatably connected to the inner wall of the rotating seat 561. A deflection rotating shaft 563 is fixedly connected to the side of the rotating ball 562 far away from the rotating seat 561, and the outer surface of the deflection rotating shaft 563 is rotatably connected to the inner wall of the deflection sleeve 55. When the grinding abrasive belt 53 is deformed, the deflection sleeve 55 is pulled to move, driving the deflection rotating shaft 563 to move, thereby driving the rotating ball 562 to rotate inside the rotating seat 561, so as to reduce the deformation degree of the grinding abrasive belt 53, avoid the grinding abrasive belt 53 from being deformed for a long time, resulting in fatigue deformation of the grinding abrasive belt 53, thus ensuring the service life of the grinding abrasive belt 53, and at the same time, it can also cooperate with the deflection sleeve 55 to change the deflection angle of the grinding abrasive belt 53.

[0025] A bump 564 is provided at the interval between the rotating seat 561 and the rotating ball 562. The outer surface of the bump 564 is fixedly connected to the inner wall of the rotating seat 561, and the outer surface of the bump 564 is slidably connected to the outer surface of the rotating ball 562. A plurality of bumps 564 are arranged along the circumferential direction of the rotating seat 561, and the number of bumps 564 is also set to be several. When the rotating ball 562 rotates inside the rotating seat 561, the rotating ball 562 slides on the surface of the bump 564. At the same time, since the bump 564 is made of rubber material, it can increase the friction between the rotating ball 562 and the bump 564, thereby preventing the rotating ball 562 from rotating randomly in the rotating seat 561, and thus preventing the abrasive belt 53 from shaking randomly when driving the grinding screw, thereby improving the grinding efficiency.

[0026] Example 2, please refer to Figures 5 - 8 , the fixing mechanism 4 includes a slide cylinder 41. The slide cylinder 41 is arranged at the interval between the sleeve plate 2 and the fixed bracket 3, and the outer surface of the slide cylinder 41 is fixedly connected to the top of the base 1. A groove plate 42 is arranged on the side of the slide cylinder 41 away from the base 1, and the output end of the slide cylinder 41 is fixedly connected to the outer surface of the groove plate 42. Fixed components 43 are symmetrically arranged on both sides of the groove plate 42, and the inner wall of the fixed component 43 is fixedly connected to the outer surface of the groove plate 42. The two symmetrically arranged fixed components 43 fix the two ends of the screw. During grinding, the slide cylinder 41 is started, and the output end of the slide cylinder 41 drives the groove plate 42 to move, thereby driving the two fixed components 43 to move, thereby driving the screw to move, so that the abrasive belt 53 can grind different parts of the screw, thereby grinding the entire screw.

[0027] The fixed component 43 includes a frame body 431, and the inner wall of the frame body 431 is slidably connected to the inner wall of the groove plate 42. A fixing plate 432 is fixedly connected to the side of the frame body 431 away from the base 1. An expansion link 439 is arranged at the interval between the frame body 431 and the groove plate 42, and the side of the expansion link 439 close to the fixing plate 432 is fixedly connected to the inner wall of the frame body 431. The end of the expansion link 439 away from the frame body 431 is fixedly connected to the outer surface of the groove plate 42. When the expansion link 439 is started, the expansion link 439 drives the frame body 431 to move, thereby changing the interval between the two fixing plates 432, so that the two fixed components 43 can fix screws of different lengths.

[0028] The inner wall of the fixed plate 432 is fixedly connected with a rotating cylinder 433. The inner wall of the rotating cylinder 433 is fixedly connected with a tapered plate 434. The tapered plate 434 has a certain elasticity, and the number of tapered plates 434 is set to be several. Triangular grooves 4310 are formed on the outer surfaces of the several tapered plates 434, and several triangular grooves 4310 are arranged circumferentially along the tapered plate 434. The screw rod is inserted into the rotating cylinder 433, and the screw rod presses the tapered plate 434. The tapered plate 434 deforms, and under the elastic force of the tapered plate 434 restoring its deformation, the screw rod is pressed and fixed. By opening the triangular grooves 4310, the tapered plate 434 can deform uniformly in all directions, so that the axis of the screw rod coincides with the axis of the rotating cylinder 433, thereby avoiding shaking when the screw rod rotates. Since the tapered plate 434 is conical, screw rods with different diameters can be fixed inside the tapered plate 434.

[0029] A chute 438 is formed at the top of the base 1, and the chute 438 is formed on the side far from the slide table cylinder 41. The inner wall of the chute 438 is slidably connected with a mounting seat 437. The inner wall of the mounting seat 437 is fixedly connected with a fixed motor 436. One side of the fixed motor 436 close to the fixed plate 432 is fixedly connected with a fixed rotating shaft 435, and the fixed rotating shaft 435 is fixedly connected with the output end of the fixed motor 436. The end of the fixed rotating shaft 435 far from the fixed motor 436 is fixedly connected with the outer surface of the rotating cylinder 433. During grinding, the fixed motor 436 is started to drive the fixed rotating shaft 435 to rotate, drive the rotating cylinder 433 to rotate, the rotating cylinder 433 rotates to drive the tapered plate 434 to rotate, thereby driving the screw rod to rotate, so that all parts in the circumferential direction of the screw rod can contact the grinding abrasive belt 53, thereby grinding the surface of the entire screw rod. At the same time, when adjusting the distance between the two fixing components 43, the fixed plate 432 moves, drives the rotating cylinder 433 to move, drives the fixed rotating shaft 435 to move, drives the fixed motor 436 to move, drives the mounting seat 437 to move, and the mounting seat 437 slides inside the chute 438.

[0030] Limit grooves 45 are symmetrically formed at the top of the groove plate 42. A trolley 44 is arranged at the top of the groove plate 42, and the rollers of the trolley 44 are slidably connected inside the limit grooves 45. Fixing strips 46 are symmetrically arranged on one side of the trolley 44 far from the groove plate 42, and the outer surfaces of the two fixing strips 46 are fixedly connected with the trolley 44. Rolling cylinders 47 are symmetrically arranged at the intervals between the two fixing strips 46, and both fixing strips 46 are rotatably connected to the inner walls of the two fixing strips 46 through rotating rods. The screw rod is placed between the two rolling cylinders 47, and the rolling cylinders 47 support the surface of the screw rod. The trolley 44 is moved, and the movement of the trolley 44 drives the fixing strips 46 to move, drives the rolling cylinders 47 to move, so as to support screw rods of different lengths, thereby avoiding shaking when the screw rod rotates, thereby maintaining the grinding efficiency of the screw rod. The rotation of the screw rod drives the rolling cylinders 47 to rotate, thereby avoiding friction between the threads of the screw rod and the rolling cylinders 47 and causing thread damage.

[0031] Start the telescopic rod 439. The telescopic rod 439 drives the frame 431 to move, thereby changing the interval between the two fixing plates 432. The screw rod is inserted into the inside of the rotating cylinder 433. The screw rod presses the tapered plate 434, and the tapered plate 434 deforms. Thus, under the elastic force of the tapered plate 434 recovering from deformation, the screw rod is pressed and fixed. Move the trolley 44. The movement of the trolley 44 drives the fixing strip 46 to move. The rotation of the screw rod drives the roller 47 to rotate. Start the fixing motor 436 to drive the fixing rotating shaft 435 to rotate, driving the rotating cylinder 433 to rotate. The rotation of the rotating cylinder 433 drives the tapered plate 434 to rotate, thereby driving the screw rod to rotate. During grinding, the slide table cylinder 41 is started. The output end of the slide table cylinder 41 drives the groove plate 42 to move, thereby driving the two fixing components 43 to move, thereby driving the screw rod to move, so that the grinding abrasive belt 53 can grind different parts of the screw rod, thereby grinding the entire screw rod. Start the grinding motor 521. The output end of the grinding motor 521 drives the grinding rotating shaft 522 to rotate. The grinding rotating shaft 522 drives the fixed sleeve 51 to rotate, thereby driving the grinding abrasive belt 53 to drive, and the grinding abrasive belt 53 grinds the threaded surface of the screw rod.

[0032] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A surface grinding device for extruder threaded components, characterized in that: include: A base (1), and a sleeve plate (2) and a fixing bracket (3) symmetrically arranged on the top of the base (1); A fixing mechanism (4), the fixing mechanism (4) having a telescopic fixing structure, and being used to fix different extruder screws; A grinding mechanism (5), the grinding mechanism (5) having a grinding structure, and used for grinding the thread surface of the extruder screw; The top of the base (1) is fixedly connected to the sleeve plate (2) and the side of the fixed bracket (3) away from the grinding mechanism (5), the bottom of the fixed mechanism (4) is fixedly connected to the top of the base (1), and the two ends of the grinding mechanism (5) are respectively fixedly connected to the inner walls of the sleeve plate (2) and the fixed bracket (3); Wherein, the grinding mechanism (5) comprises: A transmission assembly (52), the transmission assembly (52) being used to drive the grinding mechanism (5) to operate, and a fixed sleeve (51) arranged at the end of the transmission assembly (52); A grinding belt (53), the outer surface of which has rough particles, and the grinding belt (53) is elastic and is used to grind the thread surface of the extruder screw, and a deflection sleeve (55) sleeved inside the grinding belt (53), the width of the grinding belt (53) being equal to the gap width of the fixed sleeve (51), and the gap width of the deflection sleeve (55) being greater than that of the fixed sleeve (51); A deflection assembly (56), the deflection assembly (56) having a rotating structure for driving the grinding belt (53) to change the grinding angle; The outer surface of the transmission assembly (52) is fixedly connected to the inner wall of the sleeve plate (2); the side of the transmission assembly (52) away from the sleeve plate (2) is fixedly connected to the inner wall of the fixed sleeve (51); the outer surface of the fixed sleeve (51) is transmission-connected to the inner wall of the grinding belt (53); the inner wall of the grinding belt (53) away from the fixed sleeve (51) is transmission-connected to the deflection sleeve (55); the inner wall of the deflection sleeve (55) is rotationally connected to the outer surface of the end of the deflection assembly (56); and the outer surface of the deflection assembly (56) away from the deflection sleeve (55) is fixedly connected to the inner wall of the fixed bracket (3).

2. The surface grinding device for extruder threaded element according to claim 1, characterized in that: The outer surface of the grinding belt (53) is provided with a cleaning groove (54), and a plurality of the cleaning grooves (54) are provided on the outer surface of the grinding belt (53); the outer surface of the deflection sleeve (55) is provided with a groove body (57), the groove body (57) is arranged to be inclined with respect to the axial direction of the deflection sleeve (55), and a plurality of the groove bodies (57) are arranged along the circumference of the deflection sleeve (55).

3. The surface grinding device for extruder threaded element according to claim 2, characterized in that: The transmission assembly (52) comprises a grinding motor (521), the outer surface of the grinding motor (521) being fixedly connected to the inner wall of the sleeve plate (2), a grinding shaft (522) being provided on a side of the grinding motor (521) close to the grinding belt (53), and an output end of the grinding motor (521) being fixedly connected to an end of the grinding shaft (522), and an outer surface of a side of the grinding shaft (522) away from the grinding motor (521) being fixedly connected to the inner wall of the fixed sleeve (51).

4. The surface grinding device for extruder threaded element according to claim 3, characterized in that: The deflection assembly (56) comprises a rotating seat (561), the outer surface of the rotating seat (561) being fixedly connected to the inner wall of the fixed bracket (3), a rotating ball (562) being provided on a side of the rotating seat (561) away from the fixed bracket (3), and the outer surface of the rotating ball (562) being rotatably connected to the inner wall of the rotating seat (561), a deflection shaft (563) being fixedly connected to a side of the rotating ball (562) away from the rotating seat (561), and the outer surface of the deflection shaft (563) being rotatably connected to the inner wall of the deflection sleeve (55).

5. The surface grinding device for extruder threaded element according to claim 4, characterized in that: A protrusion (564) is provided at the interval between the rotating seat (561) and the rotating ball (562); the outer surface of the protrusion (564) is fixedly connected to the inner wall of the rotating seat (561), and the outer surface of the protrusion (564) is slidably connected to the outer surface of the rotating ball (562); a plurality of protrusions (564) are provided along the circumference of the rotating seat (561), and the number of the protrusions (564) is set to be a plurality.

6. The surface grinding device for extruder threaded element according to claim 5, characterized in that: The fixing mechanism (4) comprises a slide cylinder (41), the slide cylinder (41) being arranged at the interval between the sleeve plate (2) and the fixing bracket (3), and the outer surface of the slide cylinder (41) being fixedly connected to the top of the base (1), a groove plate (42) being arranged on the side of the slide cylinder (41) away from the base (1), and the output end of the slide cylinder (41) being fixedly connected to the outer surface of the groove plate (42), and fixing components (43) being symmetrically arranged on both sides of the groove plate (42), and the inner wall of the fixing component (43) being fixedly connected to the outer surface of the groove plate (42).

7. The surface grinding device for extruder threaded element according to claim 6, characterized in that: The fixing assembly (43) comprises a frame (431), and the inner wall of the frame (431) is slidably connected to the inner wall of the groove plate (42); a side of the frame (431) away from the base (1) is fixedly connected to the fixing plate (432); a telescopic rod (439) is provided at a distance between the frame (431) and the groove plate (42); a side of the telescopic rod (439) close to the fixing plate (432) is fixedly connected to the inner wall of the frame (431); and an end of the telescopic rod (439) away from the frame (431) is fixedly connected to the outer surface of the groove plate (42).

8. The surface grinding device for extruder threaded element according to claim 7, characterized in that: The inner wall of the fixed plate (432) is fixedly connected to a rotating cylinder (433), and the inner wall of the rotating cylinder (433) is fixedly connected to a cone plate (434), the cone plate (434) has a certain elasticity, and there are a plurality of cone plates (434), and the outer surfaces of the plurality of cone plates (434) are all provided with triangular grooves (4310), and a plurality of triangular grooves (4310) are provided along the circumference of the cone plate (434).

9. The surface grinding device for extruder threaded element according to claim 8, characterized in that: A slide groove (438) is provided at the top of the base (1), and the slide groove (438) starts on a side away from the slide cylinder (41), the inner wall of the slide groove (438) is slidably connected to a mounting seat (437), the inner wall of the mounting seat (437) is fixedly connected to a fixed motor (436), the fixed motor (436) is fixedly connected to a fixed shaft (435) on a side close to the fixed plate (432), and the fixed shaft (435) is fixedly connected to an output end of the fixed motor (436), and the end of the fixed shaft (435) away from the fixed motor (436) is fixedly connected to the outer surface of the rotating drum (433).

10. The surface grinding device for extruder threaded element according to claim 9, characterized in that: The top of the groove plate (42) is symmetrically provided with a limiting groove (45), the top of the groove plate (42) is provided with a trolley (44), and the roller of the trolley (44) is slidably connected inside the limiting groove (45), a fixing bar (46) is symmetrically provided on the side of the trolley (44) away from the groove plate (42), and the outer surfaces of the two fixing bars (46) are fixedly connected to the trolley (44), and rollers (47) are symmetrically provided between the two fixing bars (46), and the two fixing bars (46) are rotatably connected to the inner walls of the two fixing bars (46) through a rotating rod.

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