Polyethylene processing method

Abstract

The invention discloses a polyethylene processing method, which relates to the technical field of polyethylene processing. The processing mechanism includes a workbench, wherein the bottom of the workbench is fixedly connected with support columns near the four corners, and the polyethylene raw material enters the cylinder and the round tube through the feed barrel, and the heating plate heats and melts the polyethylene raw material inside the round tube. Then the cylinder moves to the bottom of the left support frame, and the U-shaped block is hingedly connected to the adjacent vertical plate through the movable threaded rod. The cylinder lifts the support frame and the round tube, and the polyethylene raw material inside the round tube will tilt to one side of the rotating disk. The motor drives the rotating disk to rotate through the cross rod, and the stirring rod evenly stirs the melted polyethylene raw material. The motor is removed from the limiting tube, and the tapered tube is installed on the surface of the threaded tube. The electric telescopic rod drives the push plate to move, and the push plate moves the polyethylene raw material inside the round tube, and the polyethylene raw material is extruded through the pipe mouth of the tapered tube.

Description

Technical Field

[0001] The present invention relates to the technical field of polyethylene processing, in particular to a polyethylene processing method. Background Art

[0002] Polyethylene is a thermoplastic resin made by polymerization of ethylene monomers. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, and has excellent low-temperature resistance.

[0003] However, there are some problems in the processing of existing polyethylene. During the processing of existing polyethylene, a screw is usually used to melt and evenly stir the polyethylene raw material and discharge it into a mold. During the process of extruding the polyethylene raw material, a large amount of polyethylene raw material will adhere to the surface of the screw. If the polyethylene raw material on the surface of the screw needs to be removed, manual operation is required, which will increase the workload of the operator. At the same time, the existing polyethylene raw material extrusion device is usually cylindrical. After the extrusion device finishes working, it is not convenient to clean the polyethylene raw material remaining on the inner wall of the device, which will affect the use of subsequent devices. It is also inconvenient to adjust the shape of the extruded polyethylene raw material, thereby reducing the efficiency of the device. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a polyethylene processing method, which can facilitate the extrusion of polyethylene raw materials inside the device, reduce the workload of operators, facilitate the cleaning of the inside of the device, and facilitate the adjustment of the shape of the extruded polyethylene raw materials.

[0005] To achieve the above object, the present invention provides the following technical solution: a polyethylene processing method comprising the following steps:

[0006] Step 1: First, pour the polyethylene raw material into the processing mechanism, which melts the polyethylene raw material and stirs and mixes it;

[0007] Step 2: The processing mechanism is then gradually tilted by the height adjustment mechanism, and the polyethylene raw materials inside the processing mechanism will flow downwards;

[0008] Step 3: The extrusion mechanism then extrude the polyethylene raw material.

[0009] Preferably, in step 1, the processing mechanism includes a workbench, the bottom of the workbench is fixedly connected to support columns near the four corners, a horizontal groove is opened at the center of the workbench, three support frames are provided on the top of the workbench, the inner cavity of the support frame is provided with a circular tube, the outer edge of the circular tube is fixedly connected to the first flange near the left and right ends, the two adjacent first flanges are arranged to fit each other, the left end of the circular tube on the left is provided with a cylinder, the outer edge of the cylinder is fixedly connected to the third flange near the right side, the right side of the circular tube on the right is provided with a limiting tube, the inner side wall of the limiting tube is fixedly connected to four elastic plates near the left side, and the outer edge of the limiting tube is fixedly connected to the second flange near the left side. Lan, the second flange and the adjacent first flange are fitted together, the third flange and the adjacent first flange are fitted together, the first flange, the second flange and the third flange inner cavities are each provided with a plurality of first threaded holes, the inner cavities of two adjacent first threaded holes are commonly threadedly connected with connecting bolts, the top of the circular tube is provided with a heating plate, the bottom of the heating plate is fitted with the outer edge of the adjacent support frame, the front and rear sides of the heating plate are fixedly connected with a connecting L-shaped plate, the inner cavity of the connecting L-shaped plate is provided with a second threaded hole, the front and rear sides of the support frame are provided with a third threaded hole near the top, and the inner cavities of the adjacent second threaded holes and third threaded holes are commonly threadedly connected with a connecting threaded rod.

[0010] Preferably, in step 2, the height adjustment mechanism includes three vertical plates, the tops of the three vertical plates are fixedly connected to the bottoms of adjacent support frames, the bottom of the workbench is provided with T-slots near the front and rear sides, the inner cavities of the T-slots are movably connected with T-blocks, the bottoms of the T-blocks are fixedly connected to fixed L-shaped plates, and the two fixed L-shaped plates are commonly fixedly connected to a limit frame, the top of the limit frame is open, the bottom of the limit frame is fixedly connected to a universal wheel, the bottom of the inner cavity of the limit frame is fixedly connected to a cylinder, the top of the cylinder is located in the inner cavity of the transverse groove, the top of the cylinder is fixedly connected to a U-shaped block, the U-shaped block is located at the outer edge of the left vertical plate, the front and rear sides of the U-shaped block are provided with a first connecting hole, the inner cavity of the vertical plate is provided with a second connecting hole, the two first connecting holes and the inner cavity of the adjacent second connecting hole are commonly penetrated by a movable threaded rod, the outer edges of the movable threaded rods are threadedly connected with threaded rings near the front and rear ends, and the front and rear sides of the workbench are provided with a plurality of slots near the top, and the plurality of slots and the inner cavity of the transverse groove are mutually connected.

[0011] Preferably, in step 3, the extrusion mechanism includes an electric telescopic rod, which is located at the left end of the cylinder, and a limiting hole is opened at the left end of the cylinder. The right end of the electric telescopic rod passes through the limiting hole and is fixedly connected to a push plate, and the push plate is located in the inner cavity of the cylinder, and a through groove is opened at the top of the cylinder, and a feed barrel is fixedly connected to the inner cavity of the through groove, and a screen is fixedly connected to the inner cavity of the feed barrel near the top.

[0012] Preferably, the right end of the limiting tube is fixedly connected to a threaded tube, the outer edge of the threaded tube is threadedly connected to a threaded barrel, the right end of the threaded barrel is provided with a motor, the motor power output shaft is fixedly connected to a transmission rod, the left end of the transmission rod passes through the right end of the threaded barrel, the outer edge of the transmission rod is fixedly connected to a fixing ring near the center, the left end of the transmission rod is provided with a cross slot, the inner cavity of the cross slot is provided with a cross rod, the left end of the cross rod is fixedly connected to a rotating disk, and four stirring rods are fixedly connected to the left side of the rotating disk.

[0013] Preferably, connecting grooves are provided on both the front and rear sides of the stirring rod near the left end, a vertical rod is fixedly connected to the left side of the inner cavity of the connecting groove, a fixed tube is sleeved on the outer edge of the vertical rod, a swing plate is fixedly connected to the outer edge of the fixed tube, a spring is fixedly connected to one side of the swing plate, and the end of the spring away from the swing plate is fixedly connected to the adjacent side wall of the inner cavity of the connecting groove.

[0014] Preferably, a plurality of fourth threaded holes are provided on the left and right sides of the support frame near the bottom, and two elastic rods are provided on the corresponding side of the support frame. The left and right ends of the elastic rods are fixedly connected to the limiting plate, and the inner cavity of the limiting plate is provided with four fifth threaded holes, and the adjacent fourth threaded holes and fifth threaded holes are threadedly connected to the limiting threaded rods together.

[0015] Preferably, a fixing column is fixedly connected to the right side of the workbench, four connecting rods are fixedly connected to the outer edge of the fixing column, and the ends of the connecting rods away from the fixing column are fixedly connected to arc plates, and the outer edges of the four arc plates are commonly provided with a tapered tube, and the inner cavity of the tapered tube is provided with an internal thread near the left side, and the right end of the tapered tube is provided with a connecting cover, and the outer edge of the connecting cover is fixedly connected to four limit plates, and the inner cavity of the limit plates is provided with a sixth threaded hole, and the outer edge of the tapered tube is provided with a seventh threaded hole near the right side, and the inner cavities of the adjacent sixth threaded hole and the seventh threaded hole are commonly threadedly connected with a limiting bolt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can realize the mutual cooperation between the circular tube, motor, push plate, cylinder and other structures, so that the polyethylene raw material can be passed through the feed barrel into the inside of the cylinder and the circular tube, the screen screens the polyethylene raw material, the heating plate heats and melts the polyethylene raw material inside the circular tube, and then the cylinder moves to the bottom of the left support frame, and the U-shaped block is hingedly connected to the adjacent vertical plate through the movable threaded rod. The cylinder lifts the support frame and the circular tube, and the circular tube is in an inclined state. The polyethylene raw material inside the circular tube will be inclined to one side of the rotating disk, and the motor drives the rotating disk to rotate through the cross rod, and the rotating disk drives the stirring rod to rotate, and the stirring rod evenly stirs the melted polyethylene raw material, and then the motor is removed from the limiting tube, and the tapered tube is installed on the surface of the threaded tube, and the electric telescopic rod drives the push plate to move, and the push plate moves the polyethylene raw material inside the circular tube, and the polyethylene raw material is extruded through the pipe mouth of the tapered tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the present invention;

[0019] Figure 2 It is a bottom-up perspective view of the present invention;

[0020] Figure 3 This is an exploded view of the circular tube component of the present invention;

[0021] Figure 4 This is a diagram showing the installation state of the tapered tube component of the present invention;

[0022] Figure 5 This is a schematic diagram of the component workbench structure of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the component heating plate of the present invention;

[0024] Figure 7 This is an exploded view of the threaded barrel component of the present invention;

[0025] Figure 8 This is a schematic structural diagram of the stirring rod component of the present invention;

[0026] Figure 9 This is an exploded view of the tapered tube component of the present invention;

[0027] Figure 10 This is a schematic diagram of the cylindrical structure of the component of the present invention;

[0028] Figure 11 This is a schematic diagram of the component support frame structure of the present invention;

[0029] Figure 12 This is a bottom view of the structure of the component support frame of the present invention;

[0030] Figure 13 This is an exploded view of the limiting frame of the component of the present invention;

[0031] Figure 14 This is a schematic diagram of the elastic rod structure of the present invention;

[0032] Figure 15 for Figure 8 Enlarged view of point A in the middle;

[0033] Figure 16 for Figure 9 Enlarged view of point B in the middle;

[0034] Figure 17 for Figure 12 Enlarged view of point C in the middle.

[0035] Numbers in the figure: 1, workbench; 2, support column; 3, support frame; 4, heating plate; 5, cylinder; 6, feed cylinder; 7, screen; 8, electric telescopic rod; 9, motor; 10, transmission rod; 11, tapered tube; 12, round tube; 13, first flange; 14, connecting bolt; 15, second flange; 16, third flange; 17, push plate; 18, limit tube; 19, threaded tube; 20, threaded cylinder; 21, connecting L-shaped plate; 22, connecting threaded rod; 23, fixing ring; 24, cross rod; 2 5. Rotating plate; 26. Stirring rod; 27. Fixed column; 28. Connecting rod; 29. ​​Arc plate; 30. Connecting cover; 31. Limiting frame; 32. Vertical plate; 33. Universal wheel; 34. Fixed L-shaped plate; 35. T-block; 36. Cylinder; 37. U-block; 38. Elastic rod; 39. Limiting plate; 40. Limiting threaded rod; 41. Swinging plate; 42. Spring; 43. Fixed tube; 44. Vertical rod; 45. Limiting plate; 46. Limiting bolt; 47. Threaded ring; 48. Movable threaded rod. DETAILED DESCRIPTION

[0036] See also Figure 1-17 The present invention provides a technical solution: a polyethylene processing method, comprising the following steps:

[0037] Step 1: First, pour the polyethylene raw material into the processing mechanism, which melts the polyethylene raw material and stirs and mixes it;

[0038] Step 2: The processing mechanism is then gradually tilted by the height adjustment mechanism, and the polyethylene raw materials inside the processing mechanism will flow downwards;

[0039] Step 3: The extrusion mechanism then extrude the polyethylene raw material;

[0040] In step 1, the processing mechanism includes a workbench 1, the bottom of the workbench 1 is fixedly connected to support columns 2 near the four corners, a horizontal groove is opened at the center of the workbench 1, and three support frames 3 are provided on the top of the workbench 1. The inner cavity of the support frame 3 is provided with a circular tube 12, and the outer edges of the circular tube 12 are fixedly connected to the first flange 13 near the left and right ends. The two adjacent first flanges 13 are arranged to fit each other. A cylinder 5 is provided at the left end of the left circular tube 12, and the outer edge of the cylinder 5 is fixedly connected to the third flange 16 near the right side. A limiting tube 18 is provided on the right side of the right circular tube 12, and four elastic plates are fixedly connected to the inner side wall of the limiting tube 18 near the left side. The outer edge of the limiting tube 18 is fixedly connected to the second flange 15 near the left side. The second flange 15 is fitted with the adjacent first flange 13, and the third flange 16 is fitted with the adjacent first flange 13. The inner cavities of the first flange 13, the second flange 15 and the third flange 16 are all provided with a plurality of first threaded holes. The inner cavities of the two adjacent first threaded holes are commonly threadedly connected with a connecting bolt 14. A heating plate 4 is provided on the top of the circular tube 12. The bottom of the heating plate 4 is fitted on the outer edge of the adjacent support frame 3. The front and rear sides of the heating plate 4 are fixedly connected with a connecting L-shaped plate 21. The inner cavity of the connecting L-shaped plate 21 is provided with a second threaded hole. The front and rear sides of the support frame 3 are provided with a third threaded hole near the top. The inner cavities of the adjacent second threaded holes and the third threaded holes are commonly threadedly connected with a connecting threaded rod 22.

[0041] In step 2, the height adjustment mechanism includes three vertical plates 32, the tops of the three vertical plates 32 are fixedly connected to the bottoms of the adjacent support frames 3, T-slots are provided at the bottom of the workbench 1 near the front and rear sides, the inner cavities of the T-slots are movably connected with T-blocks 35, the bottoms of the T-blocks 35 are fixedly connected with fixed L-shaped plates 34, and the two fixed L-shaped plates 34 are fixedly connected to the limit frame 31. The top of the limit frame 31 is open, the bottom of the limit frame 31 is fixedly connected with a universal wheel 33, and the bottom of the inner cavity of the limit frame 31 is fixedly connected with a cylinder 36. The cylinder 36 The top end is located in the inner cavity of the transverse groove, and the top end of the cylinder 36 is fixedly connected to a U-shaped block 37. The U-shaped block 37 is located at the outer edge of the left vertical plate 32. A first connecting hole is opened on both the front and rear sides of the U-shaped block 37, and a second connecting hole is opened in the inner cavity of the vertical plate 32. A movable threaded rod 48 is passed through the two first connecting holes and the inner cavity of the adjacent second connecting holes. The outer edge of the movable threaded rod 48 is threadedly connected to a threaded ring 47 near the front and rear ends. A plurality of slots are opened on both the front and rear sides of the workbench 1 near the top, and the plurality of slots are mutually connected with the inner cavity of the transverse groove.

[0042] In step 3, the extrusion mechanism includes an electric telescopic rod 8, which is located at the left end of the cylinder 5. A limit hole is provided at the left end of the cylinder 5. The right end of the electric telescopic rod 8 passes through the limit hole and is fixedly connected to a push plate 17. The push plate 17 is located in the inner cavity of the cylinder 5. A through groove is provided at the top of the cylinder 5. The inner cavity of the through groove is fixedly connected to a feed barrel 6. A screen 7 is fixedly connected to the inner cavity of the feed barrel 6 near the top.

[0043] The right end of the limiting tube 18 is fixedly connected to a threaded tube 19, and the outer edge of the threaded tube 19 is threadedly connected to a threaded cylinder 20. The right end of the threaded cylinder 20 is provided with a motor 9, and the power output shaft of the motor 9 is fixedly connected to a transmission rod 10. The left end of the transmission rod 10 passes through the right end of the threaded cylinder 20, and the outer edge of the transmission rod 10 is fixedly connected to a fixing ring 23 near the center. The left end of the transmission rod 10 is provided with a cross groove, and a cross rod 24 is provided in the inner cavity of the cross groove. The left end of the cross rod 24 is fixedly connected to a rotating disk 25, and four stirring rods 26 are fixedly connected to the left side of the rotating disk 25. Connecting grooves are provided on the front and rear sides of the stirring rod 26 near the left end. The left side of the inner cavity of the connecting groove is fixedly connected to a vertical rod 44, and the outer edge of the vertical rod 44 is sleeved with a fixing tube 43. The outer edge of the fixing tube 43 is fixedly connected to a swing plate 41. One side of the swing plate 41 is fixedly connected to a spring 42. The end of the spring 42 away from the swing plate 41 is fixedly connected to the side wall of the adjacent connecting groove cavity. A plurality of fourth threaded holes are provided, and two elastic rods 38 are provided on the corresponding side of the support frame 3. The left and right ends of the elastic rods 38 are fixedly connected to the limit plates 39. The inner cavities of the limit plates 39 are provided with four fifth threaded holes. The inner cavities of the adjacent fourth threaded holes and the fifth threaded holes are commonly threadedly connected to the limit threaded rods 40. A fixing column 27 is fixedly connected to the right side of the workbench 1. Four connecting rods 28 are fixedly connected to the outer edge of the fixing column 27. The ends of the connecting rods 28 away from the fixing column 27 are fixedly connected to the arc plates 29. The outer edges of the four arc plates 29 are commonly provided with a tapered tube 11. An internal thread is provided in the inner cavity of the tapered tube 11 near the left side. A connecting cover 30 is provided at the right end of the tapered tube 11. Four limit plates 45 are fixedly connected to the outer edge of the connecting cover 30. Sixth threaded holes are provided in the inner cavities of the limit plates 45. A seventh threaded hole is provided at the outer edge of the tapered tube 11 near the right side. The inner cavities of the adjacent sixth threaded holes and the seventh threaded holes are commonly threadedly connected to the limit bolts 46.

[0044] The polyethylene raw material enters the cylinder 5 and the circular tube 12 through the feed barrel 6, the screen 7 screens the polyethylene raw material, the heating plate 4 heats and melts the polyethylene raw material inside the circular tube 12, and then the cylinder 36 moves to the bottom of the left support frame 3, and the U-shaped block 37 is hingedly connected to the adjacent vertical plate 32 through the movable threaded rod 48. The cylinder 36 lifts the support frame 3 and the circular tube 12, and the circular tube 12 is in an inclined state. The polyethylene raw material inside the circular tube 12 will tilt to one side of the rotating disk 25, and the motor 9 drives the rotating disk 25 to rotate through the cross rod 24, and the rotating disk 25 drives the stirring rod 26 to rotate, and the stirring rod 26 evenly stirs the melted polyethylene raw material, and then the motor 9 is removed from the limiting tube 18, and the tapered tube 11 is installed on the surface of the threaded tube 19. The electric telescopic rod 8 drives the push plate 17 to move, and the push plate 17 moves the polyethylene raw material inside the circular tube 12, and the polyethylene raw material is extruded through the pipe mouth of the tapered tube 11.

[0045] Working principle: When the device starts working, the operator pours the polyethylene raw material into the feed barrel 6, the screen 7 screens the polyethylene raw material, screens the impurities in the polyethylene raw material, and the polyethylene raw material gradually enters the cylinder 5 and the circular tube 12. The circular tube 12, the cylinder 5 and the limiting tube 18 are connected by the first flange 13, the second flange 15, the third flange 16 and the connecting bolt 14, and the number of circular tubes 12 can be increased or decreased according to actual processing needs. When the polyethylene raw material enters the cylinder 5 and the circular tube 12, the heating plate 4 is started, and the heating plate 4 heats and melts the polyethylene raw material inside it through the circular tube 12. When the polyethylene raw material is melted, the operator moves the limiting frame 31 to the left, and the limiting frame 31 passes through the limiting frame 31. The wheel 33 moves, the limit frame 31 drives the fixed L-shaped plate 34 and the T-shaped block 35 to move, and the limit frame 31 drives the cylinder 36 and the U-shaped block 37 to move, and the U-shaped block 37 is moved to the surface of the vertical plate 32 at the bottom of the left support frame 3, and the movable threaded rod 48 is taken out, and the movable threaded rod 48 is passed through the U-shaped block 37 and the adjacent vertical plate 32, and then the two threaded rings 47 are respectively installed at the front and rear ends of the movable threaded rod 48, thereby completing the connection between the U-shaped block 37 and the adjacent vertical plate 32, and then the cylinder 36 is started, and the cylinder 36 drives the U-shaped block 37 to move upward, and the U-shaped block 37 drives the left vertical plate 32 to move upward through the movable threaded rod 48, and the left vertical plate 32 drives the left support frame 3 to move upward first, and the left support frame 3 drives the round tube 12 upward The support frames 3 are connected by the limit plates 39 and the elastic rods 38. When the left support frame 3 moves upward, the other two support frames 3 will tilt accordingly, so that the round tube 12, the cylinder 5 and the limit tube 18 will all tilt. The molten polyethylene raw material inside the round tube 12 will flow to the side of the rotating disk 25. The motor 9 is started by an external power supply. The motor 9 drives the transmission rod 10 to rotate. The transmission rod 10 drives the cross rod 24 to rotate through the internal cross groove. The cross rod 24 drives the rotating disk 25 to rotate. The rotating disk 25 drives the stirring rod 26 to rotate. The stirring rod 26 evenly stirs the molten polyethylene raw material. After the stirring is completed, the cylinder 36 returns to its initial state, the support frame 3 and the round tube 12 return to a horizontal state, and then the operation is completed. The operator rotates the threaded barrel 20 and removes the threaded barrel 20 from the threaded tube 19. The threaded barrel 20 drives the motor 9 and the transmission rod 10 to move. At this time, the right end of the threaded tube 19 is set to an open position. The operator holds the cross rod 24 and moves the cross rod 24 to the right. The cross rod 24 drives the rotating disk 25 and the stirring rod 26 to move to the right, and the cross rod 24, the rotating disk 25 and the stirring rod 26 are moved out from the inside of the limiting tube 18. If there is a lot of polyethylene raw material inside the round tube 12 at this time, the cylinder 36 is moved to the bottom of the right support frame 3, and the limiting frame 31 drives the fixed L-shaped plate 34 and the T-block 35 to move. The limiting frame 31 drives the cylinder 36 and the U-shaped block 37 to move, and the U-shaped block 37 is moved to the surface of the vertical plate 32 at the bottom of the right support frame 3.Take out the movable threaded rod 48, pass the movable threaded rod 48 through the U-shaped block 37 and the adjacent vertical plate 32, and then install the two threaded rings 47 at the front and rear ends of the movable threaded rod 48 respectively, thereby completing the connection between the U-shaped block 37 and the adjacent vertical plate 32, and start the cylinder 36. The cylinder 36 will drive the right support frame 3 to move upward through the U-shaped block 37 and the right vertical plate 32. The round tube 12 is in a tilted state. The difference is that at this time, the limit tube 18 is at the top and the cylinder 5 is at the bottom, thereby preventing the molten polyethylene raw material from flowing out of the device. The operator takes out the tapered tube 11 from the surface of the fixed column on the right side of the workbench 1, and installs the tapered tube 11 on the surface of the threaded tube 19 through the internal thread of the inner wall of the tapered tube 11. Then, the cylinder 36 is restored to its initial state, and the support frame 3 is restored to a horizontal state. Connect the power supply and start the electric telescopic rod 8. The electric telescopic rod 8 drives the push plate 17 to move to the right. The push plate 17 pushes the polyethylene raw material until it is moved into the limiting tube 18, the threaded tube 19 and the tapered tube 11. The operator turns the limiting bolt 46 and removes the connecting cover 30 from the right end of the tapered tube 11. The polyethylene raw material will be discharged through the right end of the tapered tube 11. The tapered tube 11 can be replaced with any shape to match different molds for extrusion. When the device finishes work and needs to be cleaned inside, the operator turns the connecting bolt 14 to separate the multiple round tubes 12, the cylinder 5 and the limiting tube 18, making it easier to clean the inside. The number of support frames 3 can be increased or decreased according to the required number of round tubes 12, thereby improving the working efficiency of the device.

Claims

1. A polyethylene processing method, characterized in that: The following steps are involved: Step 1: first pour the polyethylene raw material into the processing mechanism, and the processing mechanism melts the polyethylene raw material and stirs and mixes it; the processing mechanism includes a workbench (1), the bottom of the workbench (1) is fixedly connected to support columns (2) near the four corners, the center of the workbench (1) is provided with a transverse groove, the top of the workbench (1) is provided with three support frames (3), the inner cavity of the support frame (3) is provided with a circular tube (12), the outer edge of the circular tube (12) is fixedly connected to the left and right ends with a first flange (13), the two adjacent first flanges (13) are arranged to fit each other, the left end of the circular tube (12) on the left is provided with a cylinder (5), the outer edge of the cylinder (5) is fixedly connected to the right side with a third flange (16), the right side of the circular tube (12) on the right is provided with a A limiting tube (18) is provided, wherein four elastic plates are fixedly connected to the side wall of the inner cavity of the limiting tube (18) near the left side, and a second flange (15) is fixedly connected to the outer edge of the limiting tube (18) near the left side, and the second flange (15) and the adjacent first flange (13) are arranged to fit each other, and the third flange (16) and the adjacent first flange (13) are arranged to fit each other, and the inner cavities of the first flange (13), the second flange (15) and the third flange (16) are all provided with a plurality of first threaded holes, and the inner cavities of two adjacent first threaded holes are commonly threadedly connected with connecting bolts (14), and the top of each circular tube (12) is provided with a heating plate (4), and the bottom of the heating plate (4) fits the outer edge of the adjacent support frame (3), and the front and rear sides of the heating plate (4) are fixedly connected with connecting L shaped plate (21), the inner cavity of the connecting L-shaped plate (21) is provided with a second threaded hole, the front and rear sides of the support frame (3) are provided with a third threaded hole near the top, and the inner cavities of the adjacent second threaded holes and third threaded holes are commonly threadedly connected to a connecting threaded rod (22); the right end of the limiting tube (18) is fixedly connected to a threaded tube (19), the outer edge of the threaded tube (19) is threadedly connected to a threaded barrel (20), the right end of the threaded barrel (20) is provided with a motor (9), the power output shaft of the motor (9) is fixedly connected to a transmission rod (10), the left end of the transmission rod (10) passes through the right end of the threaded barrel (20), the outer edge of the transmission rod (10) is fixedly connected to a fixing ring (23) near the center, the left end of the transmission rod (10) is provided with a cross slot, the inner cavity of the cross slot is provided with a cross rod (24), the left end of the cross rod (24) is fixedly connected to a rotating disk (25), and the left side of the rotating disk (25) is fixedly connected to four stirring rods (26);The stirring rod (26) is provided with a connecting groove near the left end on both the front and rear sides, and a vertical rod (44) is fixedly connected to the left side of the inner cavity of the connecting groove. The outer edge of the vertical rod (44) is sleeved with a fixed tube (43), and the outer edge of the fixed tube (43) is fixedly connected to a swing plate (41). A spring (42) is fixedly connected to one side of the swing plate (41), and the end of the spring (42) away from the swing plate (41) is fixedly connected to the adjacent side wall of the inner cavity of the connecting groove; the support frame (3) is provided with a plurality of fourth threaded holes near the bottom on both the left and right sides, and two elastic rods (38) are provided on the corresponding side of the support frame (3). The left and right ends of the elastic rod (38) are fixedly connected to the limiting disk (39), and the inner cavity of the limiting disk (39) is provided with four fifth threaded holes, and the inner cavities of the adjacent fourth threaded holes and the fifth threaded holes are threadedly connected to the limiting threaded rod (40) together. Step 2: The processing mechanism is gradually tilted by the height adjustment mechanism, and the polyethylene raw material inside the processing mechanism will flow to the bottom; the height adjustment mechanism includes three vertical plates (32), the tops of the three vertical plates (32) are fixedly connected to the bottoms of the adjacent support frames (3), the bottom of the workbench (1) is provided with T-shaped slots near the front and rear sides, the inner cavities of the T-shaped slots are movably connected with T-shaped blocks (35), the bottoms of the T-shaped blocks (35) are fixedly connected with fixed L-shaped plates (34), and the two fixed L-shaped plates (34) are fixedly connected to a limit frame (31) together, the top of the limit frame (31) is open, the bottom of the limit frame (31) is fixedly connected with a universal wheel (33), the bottom of the inner cavity of the limit frame (31) is fixedly connected with a cylinder (36), the top of the cylinder (36) is located in the inner cavity of the transverse groove, the top of the cylinder (36) is fixedly connected with a U-shaped block (37), the U The block (37) is located at the outer edge of the left vertical plate (32), and the U-shaped block (37) is provided with a first connecting hole on both the front and rear sides, and the inner cavity of the vertical plate (32) is provided with a second connecting hole, and the two first connecting holes and the inner cavity of the adjacent second connecting holes are both penetrated by a movable threaded rod (48), and the outer edge of the movable threaded rod (48) is threadedly connected to a threaded ring (47) near the front and rear ends. The workbench (1) is provided with a plurality of slots on both the front and rear sides near the top, and the plurality of slots and the inner cavity of the transverse slot are mutually connected; Step 3: Then the extrusion mechanism extrude the polyethylene raw material; the extrusion mechanism includes an electric telescopic rod (8), the electric telescopic rod (8) is located at the left end of the cylinder (5), the left end of the cylinder (5) is provided with a limit hole, the right end of the electric telescopic rod (8) passes through the limit hole and is fixedly connected to a push plate (17), the push plate (17) is located in the inner cavity of the cylinder (5), the top of the cylinder (5) is provided with a through groove, the inner cavity of the through groove is fixedly connected to a feed barrel (6), and the inner cavity of the feed barrel (6) is fixedly connected to a screen (7) near the top; the right side of the workbench (1) is fixedly connected to a fixed column (27), and the outer edge of the fixed column (27) is fixedly connected to four A connecting rod (28) is provided, and one end of the connecting rod (28) away from the fixing column (27) is fixedly connected to an arc plate (29). The outer edges of the four arc plates (29) are commonly provided with a tapered tube (11). The inner cavity of the tapered tube (11) is provided with an internal thread near the left side. The right end of the tapered tube (11) is provided with a connecting cover (30). The outer edge of the connecting cover (30) is fixedly connected to four limiting plates (45). The inner cavity of each limiting plate (45) is provided with a sixth threaded hole. The outer edge of the tapered tube (11) is provided with a seventh threaded hole near the right side. The inner cavities of the adjacent sixth threaded hole and the seventh threaded hole are commonly threadedly connected to the limiting bolt (46).

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