An extruder barrel cleaning device

Abstract

The present application relates to a cleaning device for an extruder barrel, belonging to the field of extruder barrel technology. It includes a frame, on which a mounting plate is provided. A cleaning mechanism for cleaning the inside of the barrel is arranged on the mounting plate. A push-pull mechanism for controlling the feeding of the cleaning mechanism inside the barrel is arranged on the frame. An adjusting mechanism for controlling the alignment of the cleaning mechanism with the barrel is also arranged on the frame. The present application has the effect of facilitating the operator to clean the extruder barrel.

Description

Technical Field

[0001] The present application relates to the field of extruder barrel technology, and particularly relates to a cleaning device for an extruder barrel. Background Art

[0002] Plastic materials enter the extruder from the hopper and are conveyed forward by the rotation of the screw. During the forward movement of the materials, they are heated by the barrel, sheared and continuously kneaded and compressed by the screw, causing the materials to form a melt, thus realizing the transformation of the materials.

[0003] When the extruder finishes producing one kind of material product and before producing another kind of material product, in order to reduce the doping of different material components and avoid affecting the product quality and performance. Therefore, it is necessary to clean the residue left by the previous material in the extruder barrel. Currently, the cleaning of the materials in the extruder barrel is carried out manually, with a large labor intensity and low efficiency. When cleaning the barrel, the barrel needs to be heated, which is likely to cause accidental burns to the operator. Moreover, the extruder barrel is relatively long, which causes great difficulties for the operator to clean the extruder barrel. Summary of the Invention

[0004] In order to achieve the purpose of facilitating the operator to clean the extruder barrel, the present application provides a cleaning device for an extruder barrel.

[0005] The cleaning device for an extruder barrel provided by the present application adopts the following technical solutions:

[0006] A cleaning device for an extruder barrel includes a frame, an installation plate is arranged on the frame, a cleaning mechanism for cleaning the inside of the barrel is arranged on the installation plate, a pushing and pulling mechanism for controlling the feeding of the cleaning mechanism inside the barrel is arranged on the frame, and an adjusting mechanism for controlling the alignment of the cleaning mechanism with the barrel is also arranged on the frame.

[0007] By adopting the above technical solutions, a cleaning mechanism is provided to clean the inner wall of the extruder barrel. The operator adjusts the position of the installation plate through the adjusting mechanism, and then adjusts the position of the cleaning mechanism, so that the cleaning mechanism is aligned with the extruder barrel. Then, the frame is pushed to make the cleaning mechanism partially extend into the extruder barrel. The operator drives the installation plate to move through the pushing and pulling mechanism, and then drives the cleaning mechanism to move along the axis of the base barrel, so that the cleaning mechanism cleans the inner wall of the extruder barrel back and forth, thus facilitating the operator to clean the extruder barrel.

[0008] Optionally, the cleaning mechanism includes a driving motor and a cleaning rod. The driving motor is arranged on the installation plate, and the output shaft of the driving motor is connected to the cleaning rod through a universal joint coupling. A wire roller for cleaning the inside of the barrel is arranged at one end of the cleaning rod far from the driving motor.

[0009] By adopting the above technical solution, the operator inserts the cleaning rod and the wire roller into the barrel of the extruder, and then starts the driving motor to drive the cleaning rod to rotate, thereby driving the wire roller to rotate in the barrel of the extruder. Through the friction between the wire roller and the inner wall of the barrel, the cleaning effect of the inner wall of the barrel is achieved, which is convenient for the operator to clean the inner wall of the barrel.

[0010] Optionally, the cleaning rod includes a first connecting rod and a second connecting rod. One or more first connecting rods are arranged between the universal joint coupling and the second connecting rod, and the first connecting rod and the second connecting rod are arranged in sequence along their own axial directions. Both ends of the first connecting rod and the second connecting rod are provided with studs. The other ends of the first connecting rod and the second connecting rod are both provided with screw holes for threaded connection of adjacent studs. One end of the universal joint coupling facing the first connecting rod is provided with a threaded rod, and the threaded rod is threadedly connected to the screw hole of the adjacent first connecting rod. One or more wire rollers are sleeved on the stud of the second connecting rod, and a fastening nut for pressing the wire roller is threadedly connected to the stud of the second connecting rod.

[0011] By adopting the above technical solution, the operator installs the first connecting rod and the second connecting rod on the output shaft of the driving motor, and installs the wire roller on the second connecting rod to facilitate the cleaning effect of the inner wall of the extruder barrel; by setting the universal joint coupling to compensate the axial distance between the barrel and the output shaft of the driving motor, the first connecting rod and the second connecting rod can be smoothly inserted into the barrel of the extruder; by setting screw holes and studs on the first connecting rod and the second connecting rod, the operator can connect several first connecting rods between the driving motor and the second connecting rod to control the length of the cleaning rod to adapt to the lengths of different extruder barrels, which is beneficial to improving the use flexibility of the cleaning device.

[0012] Optionally, the helix directions of the threaded rod and each stud are opposite to the rotation direction of the driving motor, and through holes are formed in both the first connecting rod and the second connecting rod.

[0013] By adopting the above technical solution, the helix directions of the threaded rod and each stud are opposite to the rotation direction of the driving motor, reducing the loosening of the connection between the first connecting rod and the adjacent first connecting rod or the second connecting rod during the rotation of the driving motor; by setting the through holes, the operator inserts the pin shaft into the through holes, which is convenient for rotating the first connecting rod or the second connecting rod, enabling the first connecting rod to be smoothly connected to the adjacent first connecting rod or the second connecting rod, which is beneficial to improving the operation convenience of the operator.

[0014] Optionally, the push-pull mechanism includes a push-pull plate, a gear, and a rack. The push-pull plate is slidably arranged on the frame. The mounting plate is arranged on the push-pull plate. A reciprocating motor is arranged on the push-pull plate. The gear is coaxially arranged on the output shaft of the reciprocating motor. The rack is arranged on the frame, and the length direction of the rack is parallel to the moving direction of the push-pull plate. The gear meshes with the rack.

[0015] By adopting the above technical solution, the operator starts the reciprocating motor to drive the gear to rotate. Since the gear meshes with the rack, the rotation of the gear causes relative movement between the gear and the rack, and further causes relative movement between the push-pull plate and the frame, realizing the movement of the mounting seat and the cleaning component on the frame. The operator controls the rotation direction of the reciprocating motor to enable the mounting seat and the cleaning component to reciprocate on the frame, and further enables the part of the cleaning component inserted into the extruder barrel to reciprocate, improving the cleaning effect on the inner wall of the extruder barrel.

[0016] Optionally, a sensor for limiting the displacement of the push-pull plate on the frame is arranged on the frame, and travel switches for preventing the push-pull plate from sliding out of the frame are arranged at both ends of the frame along the moving direction of the push-pull plate.

[0017] By adopting the above technical solution, the operator sets the sensor to limit the displacement of the push-pull plate on the frame, and makes the rotation direction of the reciprocating motor change when it moves to a certain preset point, realizing the reciprocating movement of the push-pull plate on the frame, and further enabling the cleaning mechanism to reciprocate and clean in the extruder barrel, improving the cleaning effect on the inner wall of the extruder barrel; and the trigger switch is set to stop moving when the push-pull plate contacts any one of the trigger switches after the sensor fails, reducing the situation of the push-pull plate sliding out of the frame.

[0018] Optionally, the adjusting mechanism includes an adjusting plate. The adjusting plate is slidably arranged on the push-pull plate. A horizontal adjusting component for controlling the horizontal movement of the adjusting plate is arranged on the push-pull plate. The mounting plate is vertically slidably arranged on the adjusting plate. A vertical adjusting component for controlling the vertical movement of the mounting plate is arranged on the adjusting plate.

[0019] By adopting the above technical solution, the operator changes the horizontal position of the adjusting plate through the horizontal adjusting component and changes the vertical position of the adjusting plate through the vertical adjusting component, realizing the position adjustment of the cleaning mechanism, facilitating the operator to align with the extruder barrel, and enabling the cleaning mechanism to smoothly penetrate into the extruder barrel.

[0020] Optionally, the horizontal adjusting component includes a first screw rod and a slider. The first screw rod is rotatably connected to the push-pull plate, and the axial direction of the first screw rod is parallel to the sliding direction of the adjusting plate on the push-pull plate. The slider is fixedly connected to the adjusting plate, and the first screw rod penetrates through the slider and is threadedly connected to the slider.

[0021] By adopting the above technical solution, the operator rotates the first screw rod to drive the slider to move horizontally on the push-pull plate, and further enables the adjusting plate to move horizontally on the frame, realizing the horizontal position adjustment of the cleaning mechanism, which facilitates the operator to horizontally align the cleaning mechanism with the extruder barrel.

[0022] Optionally, the vertical adjustment assembly includes a second screw rod and a rotating seat. The rotating seat is rotatably connected to the first adjusting plate. The second screw rod is fixedly arranged on the mounting plate. The axial direction of the second screw rod is parallel to the moving direction of the mounting plate on the adjusting plate, and the second screw rod penetrates through the rotating seat and is threadedly connected to the rotating seat.

[0023] By adopting the above technical solution, the operator rotates the rotating seat, causing relative rotation between the rotating seat and the second screw rod. Since the second screw rod is fixedly connected to the mounting plate, the mounting plate moves vertically on the adjusting plate, realizing the vertical position adjustment of the cleaning mechanism, and further facilitating the operator to vertically align the cleaning mechanism with the extruder barrel.

[0024] Optionally, a plurality of bottom plates are arranged on the frame. Rollers for facilitating the movement of the frame are arranged on each bottom plate. Jacking bolts are threadedly connected to each bottom plate, and bases for supporting the frame are arranged on each jacking bolt.

[0025] By adopting the above technical solution, the rollers are provided to facilitate the operator to move the frame. When the operator needs to fix the frame, the operator rotates each jacking bolt, causing the jacking bolt to drive the corresponding base to move downward and replace the roller to support the frame, thereby fixing the position of the frame.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The operator drives the mounting plate to move horizontally through the horizontal adjustment assembly and vertically through the vertical adjustment assembly, aligning the second connecting rod on the driving motor with the extruder barrel. Then the operator moves the frame, inserts the second connecting rod equipped with the wire roller into the extruder barrel, and then starts the driving motor and the reciprocating motor to drive the wire roller to move in the extruder barrel. In this way, it is beneficial for the operator to clean the inner wall of the extruder barrel.

[0028] 2. The operator can increase the number of the first connecting rods between the universal joint coupling and the second connecting rod to extend the cleaning depth of the device on the inner wall of the extruder barrel, which is beneficial to improving the cleaning effect of the extruder barrel and is applicable to more extruders with different lengths, improving the use flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the structure of the cleaning mechanism in an embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the structure of the pushing and pulling mechanism in an embodiment of the present application.

[0032] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0033] Figure 5 It is a schematic diagram of the structure of the moving block in an embodiment of the present application.

[0034] Figure 6 It is a schematic diagram of the structure of the horizontal adjustment component in an embodiment of the present application.

[0035] Figure 7 It is a schematic diagram of the structure of the vertical adjustment component in an embodiment of the present application.

[0036] Explanation of reference numerals: 1, frame; 11, column; 12, bottom plate; 13, roller; 14, jacking bolt; 15, base; 16, mounting plate; 2, cleaning mechanism; 21, driving motor; 22, universal joint coupling; 23, wire roller; 3, cleaning rod; 31, first connecting rod; 32, second connecting rod; 33, threaded rod; 34, threaded hole; 35, stud; 36, through hole; 37, fastening nut; 4, pushing and pulling mechanism; 41, pushing and pulling plate; 42, first slide rail; 43, first sliding seat; 44, driving motor; 45, gear; 46, rack; 5, sensor; 51, bracket; 52, connecting plate; 53, T-shaped groove; 54, moving block; 55, limit bolt; 56, limit nut; 57, travel switch; 58, support plate; 6, adjustment mechanism; 61, adjustment plate; 62, second slide rail; 63, second sliding seat; 7, reinforcement plate; 71, connecting rod; 72, locking rod; 73, locking nut; 74, guide post; 8, horizontal adjustment component; 81, first screw rod; 82, hand wheel; 83, slider; 9, vertical adjustment component; 91, second screw rod; 92, through hole; 93, relief hole; 94, plain bearing; 95, rotating seat; 96, handle. Detailed implementation manners

[0037] The following further elaborates on the present application in conjunction with the attached Figure 1-7 drawings.

[0038] An embodiment of the present application discloses an extrusion machine barrel cleaning device. As Figure 1, Extruder barrel cleaning device: It includes a horizontally arranged frame 1, and the frame 1 is a rectangular frame. A mounting plate 16 is horizontally arranged on the frame 1, and a cleaning mechanism 2 for cleaning the extruder barrel is arranged on the mounting plate 16. A push-pull mechanism 4 for driving the mounting plate 16 to move along the length direction of the frame 1 and an adjusting mechanism 6 for controlling the position of the mounting plate 16 so that the cleaning mechanism 2 is aligned with the extruder barrel are arranged on the frame 1.

[0039] Four columns 11 are vertically and fixedly connected to the lower surface of the frame 1. The lower end surfaces of the respective columns 11 are horizontally and fixedly connected with a bottom plate 12. The lower surfaces of the respective bottom plates 12 are fixedly connected with rollers 13, and the rollers 13 are universal wheels. A jacking bolt 14 is threadedly connected to each of the four bottom plates 12. Each jacking bolt 14 is vertically arranged, and a base 15 is fixedly connected to the lower end of each jacking bolt 14. After moving the frame 1 to the designated position, the operator turns each jacking bolt 14 to drive the corresponding base 15 to descend, and makes the four bases 15 support the frame 1 instead of the rollers 13, so that the frame 1 is fixed at the designated position.

[0040] As Figure 1 And Figure 2 , The cleaning mechanism 2 includes a driving motor 21 fixedly connected to the lower surface of the mounting plate 16. The axis direction of the output shaft of the driving motor 21 is parallel to the length direction of the frame 1. The output shaft of the driving motor 21 is connected to a cleaning rod 3 through a universal joint coupling 22. One end of the universal joint coupling 22 is fixedly connected to the output shaft of the driving motor 21, and the other end of the universal joint coupling 22 is connected to the cleaning rod 3.

[0041] The cleaning rod 3 includes a first connecting rod 31 and a second connecting rod 32. One or more first connecting rods 31 are arranged between the universal joint coupling 22 and the second connecting rod 32, and the first connecting rod 31 and the second connecting rod 32 are arranged in sequence along the axis direction of the second connecting rod 32. One end of the universal joint coupling 22 facing the first connecting rod 31 is coaxially fixedly connected with a threaded rod 33. One end of each of the first connecting rod 31 and the second connecting rod 32 is provided with a threaded hole 34, and the other end of each of the first connecting rod 31 and the second connecting rod 32 is coaxially fixedly connected with a stud 35 for cooperating with the threaded hole 34. The thread rotation directions of the threaded rod 33 and each stud 35 are opposite to the loosening direction of the output shaft of the driving motor 21. When only one first connecting rod 31 is provided, the threaded rod 33 on the universal joint coupling 22 is threadedly connected to the threaded hole 34 of the first connecting rod 31, and the stud 35 of the first connecting rod 31 is threadedly connected to the threaded hole 34 of the second connecting rod 32. When multiple first connecting rods 31 are provided, the screw on the universal joint coupling 22 is threadedly connected to the threaded hole 34 of the adjacent first connecting rod 31. The adjacent two first connecting rods 31 are connected through the cooperation of the stud 35 and the threaded hole 34, and the threaded hole 34 of the second connecting rod 32 is threadedly connected to the stud 35 of the adjacent first connecting rod 31.

[0042] One or more wire rollers 23 are sleeved on the stud 35 of the second connecting rod 32. The wire rollers 23 are used to clean the inner wall of the extruder barrel. A fastening nut 37 is threadedly connected to the stud 35 of the second connecting rod 32. The fastening nut 37 presses the wire roller 23 against the second connecting rod 32 to fix the position between the wire roller 23 and the second connecting rod 32.

[0043] Through holes 36 are provided at both ends of the first connecting rod 31, and a through hole 36 is also provided at one end of the second connecting rod 32 close to its screw hole 34. When the operator connects the two first connecting rods 31, the operator inserts a pin into the through holes 36 of the two first connecting rods 31 close to the connection. The operator drives the two first connecting rods 31 to move relative to each other by flipping the pin, so as to facilitate the operator to tighten the stud 35 at the connection into the corresponding screw hole 34 to achieve a stable connection between two adjacent first connecting rods 31. When the operator connects the first connecting rod 31 with the universal joint coupling 22, the operator inserts a pin into the through hole 36 of the first connecting rod 31 close to the universal joint coupling 22. The operator drives the first connecting rod 31 and the universal joint coupling 22 to rotate relative to each other by flipping the pin, so that the threaded rod 33 is tightened into the screw hole 34 of the corresponding first connecting rod 31, and the universal joint coupling 22 is stably connected to the first connecting rod 31. When the operator connects the first connecting rod 31 and the second connecting rod 32, the operator inserts a pin into the through holes 36 of the first connecting rod 31 and the second connecting rod 32 close to the connection. Then the operator flips the pin so that the stud 35 of the first connecting rod 31 is tightened into the screw hole 34 of the second connecting rod 32 to achieve a stable connection between the first connecting rod 31 and the second connecting rod 32.

[0044] Such as Figure 1 And Figure 3 As shown in [Figure numbers not provided], the pushing and pulling mechanism 4 includes a pushing and pulling plate 41 horizontally arranged on the upper surface of the frame 1, and the mounting plate 16 is arranged on the pushing and pulling plate 41. The pushing and pulling plate 41 is rectangular, and the length direction of the pushing and pulling plate 41 is parallel to the width direction of the frame 1. First slide rails 42 are fixedly connected to both sides of the frame 1 along its width direction, and the length directions of the two first slide rails 42 are both parallel to the length direction of the frame 1. A set of first slide seats 43 are fixedly connected to the pushing and pulling plate 41 corresponding to the positions of the two first slide rails 42. There are two first slide seats 43 in a set, and the two first slide seats 43 in the same group are arranged at intervals along the width direction of the pushing and pulling plate 41. Each first slide seat 43 is slidably arranged on the corresponding first slide rail 42 along the length direction of the frame 1, so that the pushing and pulling plate 41 is slidably arranged on the upper surface of the frame 1 along the length direction of the frame 1.

[0045] A reciprocating motor 44 is fixedly connected to the upper surface of the push-pull plate 41, and the reciprocating motor 44 is located at one end of the push-pull plate 41 along its own length direction. The piston rod of the reciprocating motor 44 penetrates downward through the push-pull plate 41, and one end of the piston rod of the reciprocating motor 44 passing through the push-pull plate 41 is coaxially fixedly connected with a gear 45. A rack 46 is arranged at a position of the frame 1 close to the gear 45. The rack 46 is fixedly connected to the inner side wall of the frame 1, and the length direction of the rack 46 is parallel to the length direction of the first slide rail 42. The gear 45 meshes with the rack 46.

[0046] The operator starts the reciprocating motor 44 to drive the gear 45 to rotate. Under the driving action of the gear 45 and the rack 46, the push-pull plate 41 slides on the frame 1 along the length direction of the first slide rail 42. Since the mounting plate 16 is arranged on the push-pull plate 41, the push-pull plate 41 drives the first connecting rod 31, the second connecting rod 32 and the wire roller 23 on the mounting plate 16 to move axially along the inner wall of the extruder barrel, improving the cleaning effect on the inner wall of the extruder barrel.

[0047] As Figure 3 and Figure 4 , two sensors 5 for controlling the moving distance of the push-pull plate 41 on the frame 1 are fixedly connected to one side of the frame 1 along its own width direction through a bracket 51. Both sensors 5 are located on the side of the frame 1 away from the rack 46, and the two sensors 5 are arranged at intervals along the length direction of the frame 1. In this embodiment, both sensors 5 are photoelectric sensors 5. A controller is arranged on the reciprocating motor 44. A support plate 58 is fixedly connected to the end surface of the push-pull plate 41 away from the reciprocating motor 44. When the push-pull plate 41 moves, it drives the support plate 58 to move between the two photoelectric sensors 5.

[0048] As Figure 4 and Figure 5 , the bracket 51 is fixedly connected to the corresponding photoelectric sensor 5 through a screw. A rectangular connecting plate 52 is fixedly connected to the position of the frame 1 corresponding to the bracket 51. The length direction of the connecting plate 52 is parallel to the length direction of the frame 1. Two mutually parallel T-shaped grooves 53 are opened on the side of the connecting plate 52 away from the frame 1. Both T-shaped grooves 53 penetrate along the length direction of the connecting plate 52. A moving block 54 is slidably arranged in each T-shaped groove 53 corresponding to the position of the bracket 51. One side of each moving block 54 facing the corresponding bracket 51 is fixedly connected with a limit bolt 55. Each limit bolt 55 slidably penetrates through the corresponding bracket 51, and the end of the limit bolt 55 passing through the bracket 51 is threadedly connected with a limit nut 56. The limit nut 56 presses the bracket 51 against the connecting plate 52.

[0049] When the support plate 58 moves to the position of any one of the photoelectric sensors 5, the photoelectric sensor 5 is triggered and sends an electrical signal to the controller. After receiving the electrical signal, the controller controls the reciprocating motor 44 to drive the gear 45 to rotate in the reverse direction, so that the push-pull plate 41 moves in the reverse direction on the frame 1, thereby realizing the reciprocating movement of the push-pull plate 41 on the frame 1 and improving the cleaning effect of the wire roller 23 on the extruder barrel. The operator can adjust the relative positions of the two brackets 51 by turning the limit nut 56, thereby adjusting the relative positions of the two photoelectric sensors 5 and controlling the distance of the reciprocating movement of the push-pull plate 41 on the bracket 51.

[0050] As Figure 4 and Figure 3 , travel switches 57 are arranged at both ends of the frame 1 along its own length direction. When the photoelectric sensor 5 fails, the movement of the push-pull plate 41 on the frame 1 will contact the travel switch 57. When the push-pull plate 41 abuts against any one of the travel switches 57, both the drive motor 21 and the reciprocating motor 44 stop working, playing a safety protection role for the device.

[0051] As Figure 1 and Figure 6 , the adjusting mechanism 6 includes an adjusting plate 61 horizontally arranged on the upper surface of the push-pull plate 41. The mounting plate 16 is arranged on the adjusting plate 61, and the adjusting plate 61 is rectangular. The length direction of the adjusting plate 61 is parallel to the length direction of the push-pull plate 41. Two second slide rails 62 are fixedly connected to the upper surface of the push-pull plate 41. The two second slide rails 62 are arranged at intervals along the width direction of the push-pull plate 41, and the length directions of the two second slide rails 62 are both parallel to the length direction of the push-pull plate 41. A set of second slide seats 63 are fixedly connected to the adjusting plate 61 corresponding to the positions of the two second slide rails 62. There are two second slide seats 63 in a set, and the two second slide seats 63 in the same group are arranged at intervals along the length direction of the push-pull plate 41. Each second slide seat 63 is slidably arranged on the corresponding second slide rail 62 along the width direction of the frame 1, so that the adjusting plate 61 is horizontally slidably arranged on the push-pull plate 41 along the width direction of the frame 1.

[0052] The push-pull plate 41 is provided with a horizontal adjustment assembly 8 for controlling the movement of the adjustment plate 61 along the length direction of the push-pull plate 41. The horizontal adjustment assembly 8 includes a first screw 81 rotatably connected to the upper surface of the push-pull plate 41, and the axial direction of the first screw 81 is parallel to the length direction of the second slide rail 62. A slider 83 is fixedly connected to the lower surface of the adjustment plate 61. The first screw 81 passes through the slider 83 and is threadedly connected to the slider 83. The end of the first screw 81 away from the reciprocating motor 44 is coaxially provided with a handwheel 82 for facilitating the operator to control the rotation of the first screw 81. The operator rotates the handwheel 82 to rotate the first screw 81, so that the first screw 81 and the slider 83 rotate relative to each other, driving the adjustment plate 61 and the mounting plate 16 to move along the width direction of the frame 1, thereby adjusting the horizontal position of the first connecting rod 31, the second connecting rod 32, and the wire roller 23.

[0053] like Figure 1 and Figure 7 A reinforcement plate 7 is provided below the push-pull plate 41. A plurality of connecting rods 71 are vertically fixedly connected to the upper surface of the reinforcement plate 7. A locking rod 72 is fixedly connected to the upper end of each connecting rod 71. The maximum diameter of the locking rod 72 is smaller than the diameter of the connecting rod 71. Each locking rod 72 extends upward through the adjustment plate 61. The end of each locking rod 72 that passes through the adjustment plate 61 is threadedly connected to a locking nut 73. Each locking nut 73 presses the adjustment plate 61 against the corresponding connecting rod 71, thereby achieving a fixed connection between the push-pull plate 41 and the reinforcement plate 7. The mounting plate 16 is horizontally provided below the reinforcement plate 7. A plurality of guide posts 74 are vertically fixedly connected to the upper surface of the mounting plate 16. The push-pull plate 41 is provided with a clearance hole 93 for each guide post 74 to pass through. Each guide post 74 slides upward through the reinforcement plate 7 and the adjustment plate 61, so that the mounting plate 16 slides vertically onto the adjustment plate 61.

[0054] The adjustment plate 61 is provided with a vertical adjustment assembly 9 for controlling the elevation of the mounting plate 16. This assembly includes a second screw 91 vertically fixed to the upper surface of the mounting plate 16. Circular through-holes 92 are provided in both the adjustment plate 61 and the reinforcement plate 7 at locations corresponding to the second screw 91. The diameter of the through-holes 92 is larger than the maximum diameter of the second stud 35. The second stud 35 extends upward through the through-hole 92, the clearance hole 93, and the through-hole 92 of the reinforcement plate 7, with the top end of the second stud 35 protruding above the adjustment plate 61. A cylindrical rotating base 95 is rotatably connected to the upper surface of the adjustment plate 61 via a planar bearing 94. The second stud 35 vertically extends through the rotating base 95 and is threadedly connected to the rotating base 95. Several handles 96 are fixedly connected to the outer circumference of the rotating base 95 and are evenly distributed along the circumference of the rotating base 95.

[0055] The operator rotates the handle 96 to drive the rotating seat 95 to rotate, causing the rotating seat 95 to rotate relative to the second screw rod 91, driving the mounting seat to move vertically, and thus adjusting the vertical positions of the first connecting rod 31, the second connecting rod 32, and the wire roller 23, so as to facilitate the operator to insert the first connecting rod 31, the second connecting rod 32, and the wire roller 23 into the barrel of the extruder.

[0056] The implementation principle of the embodiment of the present application is as follows: In the initial state, the push-pull plate 41 is located at one end of the frame 1 away from the extruder, and the distance between the two photoelectric sensors 5 is not less than the length of a first connecting rod 31. The operator installs a universal joint coupling 22 on the output shaft of the drive motor 21, installs the first connecting rod 31 on the universal joint coupling 22, then installs the second connecting rod 32 on the first connecting rod 31. The operator selects a suitable wire roller 23 according to the barrel diameter of the extruder, and then installs the wire roller 23 on the second connecting rod 32. After the installation of the first connecting rod 31, the second connecting rod 32, and the wire roller 23 is completed, the operator pushes the frame 1, and under the action of the rollers 13, the frame 1 is moved to a position close to the opening of the extruder barrel.

[0057] Then the operator drives the first screw rod 81 to rotate by rotating the handwheel 82, thereby driving the adjusting plate 61 and the mounting plate 16 to move horizontally in the width direction of the frame 1 to adjust the horizontal position of the second connecting rod 32; the operator drives the rotating seat 95 to rotate by flipping the handle 96, causing the mounting plate 16 to move in the height direction of the frame 1 to adjust the vertical position of the second connecting rod 32, so that the second connecting rod 32 is aligned with the extruder barrel. The operator then moves the bracket 51 so that a part of the second connecting rod 32 is inserted into the extruder barrel. Finally, the operator drives the corresponding base 15 to descend by rotating each jacking bolt 14, so that the four bases 15 replace the rollers 13 to support the frame 1 for fixing the frame 1. The preparatory work before cleaning the extruder barrel is completed.

[0058] When cleaning the inner wall of the extruder barrel, the operator first starts the driving motor 21 to drive the first connecting rod 31, the second connecting rod 32 and the steel wire roller 23 to rotate, and then starts the reciprocating motor 44 to control the steel wire roller 23 to draw in and out of the extruder barrel to clean the part of the extruder barrel near the opening end. After completing the cleaning of the part of the extruder barrel near the opening end, the operator pauses the operation of the driving motor 21 and the reciprocating motor 44, and moves the push-pull plate 41 to the end of the frame 1 away from the extruder. Then the operator disassembles the universal joint coupling 22 from the adjacent first connecting rod 31, and connects another first connecting rod 31 between the original first connecting rod 31 and the universal joint coupling 22 to increase the length of the cleaning rod 3. After the cleaning rod 3 is lengthened, the operator starts the driving motor 21 and the reciprocating motor 44 again to make the steel wire roller 23 further clean a deeper position of the extruder barrel. The inner wall of the extruder barrel is cleaned section by section in this way, and each time the cleaning length of the steel wire roller 23 for the extruder barrel is the length of the first connecting rod 31.

[0059] When the extruder barrel is cleaned to the last section, the length of the cleaning distance of the last section of the extruder barrel is often less than the length of the first connecting rod 31. At this time, after the operator adds a section of the first connecting rod 31 to the cleaning rod 3, the operator needs to adjust the photoelectric sensor 5 near the extruder end according to the length of the cleaning distance of the last section of the extruder barrel, so as to reduce the distance between the two photoelectric sensors 5, which is convenient for the device to clean the last section of the extruder barrel.

[0060] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An extruder barrel cleaning device, characterized in that: It includes a frame (1), an installation plate (16) is arranged on the frame (1), a cleaning mechanism (2) for cleaning the inside of the cylinder is arranged on the installation plate (16), a push-pull mechanism (4) for controlling the feeding of the cleaning mechanism (2) inside the cylinder is arranged on the frame (1), and an adjusting mechanism (6) for controlling the alignment of the cleaning mechanism (2) with the cylinder is also arranged on the frame (1); The cleaning mechanism (2) includes a driving motor (21) and a cleaning rod (3). The driving motor (21) is arranged on the installation plate (16). The output shaft of the driving motor (21) is connected to the cleaning rod (3) through a universal joint coupling (22). A wire roller (23) for cleaning the inside of the cylinder is arranged at one end of the cleaning rod (3) away from the driving motor (21); The push-pull mechanism (4) includes a push-pull plate (41), a gear (45) and a rack (46). The push-pull plate (41) is slidably arranged on the frame (1). The installation plate (16) is arranged on the push-pull plate (41). A reciprocating motor (44) is arranged on the push-pull plate (41). The gear (45) is coaxially arranged on the output shaft of the reciprocating motor (44). The rack (46) is arranged on the frame (1), and the length direction of the rack (46) is parallel to the moving direction of the push-pull plate (41). The gear (45) meshes with the rack (46); The adjusting mechanism (6) includes an adjusting plate (61). The adjusting plate (61) is slidably arranged on the push-pull plate (41). A horizontal adjusting component (8) for controlling the horizontal movement of the adjusting plate (61) is arranged on the push-pull plate (41). The installation plate (16) is vertically slidably arranged on the adjusting plate (61). A vertical adjusting component (9) for controlling the vertical movement of the installation plate (16) is arranged on the adjusting plate (61); The horizontal adjusting component (8) includes a first screw rod (81) and a slider (83). The first screw rod (81) is rotatably connected to the push-pull plate (41), and the axial direction of the first screw rod (81) is parallel to the sliding direction of the adjusting plate (61) on the push-pull plate (41). The slider (83) is fixedly connected to the adjusting plate (61), and the first screw rod (81) passes through the slider (83) and is threadedly connected to the slider (83); The vertical adjusting component (9) includes a second screw rod (91) and a rotating seat (95). The rotating seat (95) is rotatably connected to the first adjusting plate (61). The second screw rod (91) is fixedly arranged on the installation plate (16). The axial direction of the second screw rod (91) is parallel to the moving direction of the installation plate (16) on the adjusting plate (61), and the second screw rod (91) passes through the rotating seat (95) and is threadedly connected to the rotating seat (95).

2. The cleaning device for an extruder barrel according to claim 1, characterized in that: The cleaning rod (3) includes a first connecting rod (31) and a second connecting rod (32). One or more first connecting rods (31) are provided between the universal joint coupling (22) and the second connecting rod (32), and the first connecting rod (31) and the second connecting rod (32) are arranged in sequence along the axial direction of the second connecting rod (32). A stud (35) is provided at one end of both the first connecting rod (31) and the second connecting rod (32), and a screw hole (34) for threadedly connecting an adjacent stud (35) is provided at the other end of both the first connecting rod (31) and the second connecting rod (32). A threaded rod (33) is provided at one end of the universal joint coupling (22) facing the first connecting rod (31), and the threaded rod (33) is threadedly connected to the screw hole (34) of the adjacent first connecting rod (31). One or more wire rollers (23) are sleeved on the stud (35) of the second connecting rod (32), and a fastening nut (37) for pressing the wire roller (23) is threadedly connected to the stud (35) of the second connecting rod (32).

3. The cleaning device for an extruder barrel according to claim 2, wherein: The helix directions of the threaded rod (33) and each stud (35) are opposite to the rotation direction of the drive motor (21), and through holes (36) are provided on both the first connecting rod (31) and the second connecting rod (32).

4. The cleaning device for an extruder barrel according to claim 1, characterized in that: A sensor (5) for limiting the displacement of the push-pull plate (41) on the machine is provided on the frame (1), and travel switches (57) for preventing the push-pull plate (41) from sliding out of the frame (1) are provided at both ends of the frame (1) along the moving direction of the push-pull plate (41).

5. The cleaning device for an extruder barrel according to claim 1, wherein: A plurality of bottom plates (12) are provided on the frame (1), rollers (13) for facilitating the movement of the frame (1) are provided on each of the bottom plates (12), jacking bolts (14) are threadedly connected to each of the bottom plates (12), and a base (15) for supporting the frame (1) is provided on each of the jacking bolts (14).

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