A plastic extrusion molding machine

Abstract

The invention discloses a plastic extrusion molding machine, belonging to the field of plastic production. A plastic extrusion molding machine includes a spiral agent barrel and a feed port connected to the top of the spiral agent barrel, and also includes a grinding component capable of processing plastic particles to uniform size, the grinding component is connected to the feed port, and the grinding component includes a grinding cylinder and a centrifugal cylinder arranged in the grinding cylinder; a cleaning component elastically connected to the inner wall of the grinding cylinder, the cleaning component is annularly equidistantly arrayed on the outer wall of the centrifugal cylinder, the top of the feed port is symmetrically connected with two groups of feed troughs, a support plate is connected between the two groups of feed troughs, the grinding cylinder is rotatably installed above the support plate through a second rotating shaft, and the plastic particles to be processed are respectively ground twice, fully ensuring that the plastic particles are of the same size and ground evenly, thereby ensuring the same heating time, and being able to be heated evenly in the spiral agent barrel, and ensuring the finished product quality of the plastic product.

Description

Technical Field

[0001] The invention relates to the technical field of plastic production, in particular to a plastic extrusion molding machine. Background Art

[0002] Plastic products are a general term for daily and industrial products made of plastic as the main raw material, including products made of injection molding and blister molding using plastic as the raw material. Plastic is a type of synthetic polymer material with plasticity. It forms three indispensable synthetic materials in daily life with synthetic rubber and synthetic fiber. Specifically, plastic is a material with natural or synthetic resin as the main component, with various additives added. It can be molded into a certain shape under certain temperature and pressure conditions, and maintains the same shape at room temperature. In the process of plastic product production, a large amount of waste will be generated, and in order to save costs, waste plastics can usually be recycled and reused. Most plastic products can be processed and manufactured by washing recycled plastics, granulating them, and then extruding them, such as plastic pipes, by heating the plastic raw materials to a molten state, extruding them out and cooling them. Most of the extruders currently used use electromagnetic heating or resistance wire heating.

[0003] In the prior art, plastic is granulated and then pressed into a spiral extruder. However, due to the uneven size of the plastic particles, the heat melting time after entering the spiral extruder is different, resulting in uneven quality of the molded products, leading to production rework or product scrapping. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that due to the uneven size of plastic particles, different hot melting times after entering the spiral extruder, the quality of the molded products is uneven, resulting in production rework or product scrapping, and a plastic extrusion molding machine is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A plastic extrusion molding machine includes an augers barrel and a feed port connected to the top of the augers barrel, and also includes a grinding component capable of processing plastic particles to uniform size, wherein the grinding component is connected to the feed port and includes a grinding barrel and a centrifugal barrel arranged in the grinding barrel; a cleaning component is elastically connected to the inner wall of the grinding barrel, and the cleaning components are annularly equidistantly arrayed on the outer wall of the centrifugal barrel.

[0007] Preferably, two groups of feed chutes are symmetrically connected at the top of the feed port, a support plate is connected between the two groups of feed chutes, and the grinding cylinder is rotatably installed above the support plate through a second rotating shaft.

[0008] Preferably, a passive gear is fixedly mounted on the surface of the support plate, a motor is fixedly mounted below the support plate, a driving gear is fixedly mounted on the output shaft end of the motor, and the driving gear is meshed with the passive gear.

[0009] In order to ensure the stability of the grinding cylinder, a stabilizing component is further connected between the support plate and the grinding cylinder, and the stabilizing component includes a limiting ring, and rollers are equidistantly installed in a ring inside the limiting ring, and the rollers are fitted to the outer wall of the grinding cylinder. Two groups of brackets are symmetrically installed on the support plate, and the brackets are fixedly connected to the limiting ring.

[0010] Preferably, the centrifugal cylinder is rotatably installed in the grinding cylinder, the centrifugal cylinder is configured as a conical cylinder structure, and the cylinder wall of the centrifugal cylinder is provided with primary discharge holes at equal intervals, and grinding balls are arranged in the centrifugal cylinder.

[0011] In order to control the rotation sequence of the grinding cylinder and the centrifugal cylinder, a connecting assembly is further provided at the bottom of the centrifugal cylinder, and the connecting assembly includes a first rotating shaft, a fixed sleeve is fixedly installed at the bottom of the centrifugal cylinder, the first rotating shaft is arranged in the fixed sleeve, an electromagnetic clutch is provided at the bottom end of the first rotating shaft, and the first rotating shaft and the second rotating shaft are connected by the electromagnetic clutch.

[0012] Preferably, a grinding plate and a linkage plate are arranged in the grinding cylinder, the grinding plate and the linkage plate are matched, the grinding plate and the grinding cylinder are rotatably connected, and the linkage plate is liftably arranged in the grinding cylinder.

[0013] In order to ensure that the grinding plate can drop materials smoothly while grinding, connecting rods are symmetrically arranged above the linkage plate, and two groups of cylinders are arranged on the top outside the grinding cylinder. The telescopic rod ends of the cylinders pass through the grinding cylinder and are fixedly connected to extension rods, and the bottom ends of the extension rods are fixedly connected to the connecting rods.

[0014] In order to ensure that the linkage plate and the grinding plate can fit and clamp tightly after the linkage plate falls, further, a material unloading groove is opened in the grinding plate, connecting blocks are symmetrically arranged in the material unloading groove, and clamping grooves are symmetrically opened in the material unloading groove, limiting blocks are symmetrically arranged on the outer circle of the linkage plate, and limiting grooves are symmetrically arranged on the bottom surface of the linkage plate, the clamping slots and limiting blocks are matched, and the connecting blocks and limiting grooves are matched.

[0015] Preferably, the cleaning assembly includes a cleaning frame and a brush provided on one side of the cleaning frame, the brush is arranged in close contact with the outer wall of the centrifugal cylinder, a support plate is fixedly installed on the inner wall of the grinding cylinder, a spring is connected between the support plate and the cleaning frame, a guide rod passes through the spring, the top end of the guide rod is fixedly connected to the cleaning frame, and the guide rod and the support plate are slidably connected, and the inclination angle of the cleaning frame is matched with the taper of the centrifugal cylinder.

[0016] Compared with the prior art, the present invention provides a plastic extrusion molding machine having the following

[0017] Beneficial effects:

[0018] 1. The plastic extrusion molding machine, by setting a grinding cylinder and a centrifugal cylinder, grinds the plastic particles to be processed twice respectively, fully ensuring that the plastic particles are of the same size and are ground evenly, thereby ensuring the same heating time and being able to be heated evenly in the screw barrel, thereby ensuring the quality of the finished plastic products;

[0019] 2. The plastic extrusion molding machine is provided with a cleaning assembly between the grinding cylinder and the centrifugal cylinder. When the centrifugal cylinder rotates, a brush attached to the outer wall of the centrifugal cylinder can reciprocate through the primary discharge hole, thereby cleaning the primary discharge hole to prevent plastic particles from being blocked in the primary discharge hole and affecting the subsequent separation of plastic particles.

[0020] 3. The plastic extrusion molding machine sets the cleaning frame as an elastic connection structure, connects all the cleaning frames as a whole by using a limit ring, and uses the downward movement of the linkage plate to move the limit ring. The stretching and resetting principle of the spring is used to drive the cleaning frame to reciprocate along the taper of the centrifugal cylinder during the reciprocating motion of the elastic force / reset, so as to clean the outer wall of the centrifugal cylinder and prevent plastic particles from remaining on the outer wall of the centrifugal cylinder. Therefore, the device can fully utilize the plastic particles and avoid residual particles.

[0021] 4. The plastic extrusion molding machine is provided with a separate grinding plate and a linkage plate, and the two are connected by means of the mutual engagement of the connecting block, the card slot, the limit block and the limit slot, and the position of the grinding plate is limited, which not only ensures that the plastic after grinding and separation is smoothly fed into the grinding plate and the grinding cylinder through the feeding slot, but also controls the position of the grinding plate after engagement, and the rotation of the grinding cylinder can perform secondary grinding on the plastic particles, further ensuring that the plastic particles before hot melting can reach the set size, ensuring uniform heating, and ultimately ensuring the quality of the extruded product.

[0022] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention fully ensures that the plastic particles are of the same size and are ground evenly, thereby ensuring the same heating time and being able to be heated evenly in the spiral agent barrel, thereby ensuring the quality of the finished plastic products; preventing plastic particles from remaining on the outer wall of the centrifugal barrel, so that the device can make full use of the plastic particles and avoid residual. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional structural schematic diagram of a plastic extrusion molding machine proposed by the present invention;

[0024] Figure 2A partial cross-sectional three-dimensional structural schematic diagram of a plastic extrusion molding machine proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of a cross-sectional three-dimensional structure of a centrifugal drum of a plastic extrusion molding machine proposed by the present invention;

[0026] Figure 4 A plastic extrusion molding machine proposed by the present invention Figure 2 The enlarged structural diagram of part A in the middle;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of a grinding assembly of a plastic extrusion molding machine proposed by the present invention;

[0028] Figure 6 A schematic diagram of the three-dimensional structure of a cleaning component of a plastic extrusion molding machine proposed by the present invention;

[0029] In the figure: 1. grinding cylinder; 2. centrifugal cylinder; 3. primary discharge hole; 4. grinding ball; 5. fixed sleeve; 6. first rotating shaft; 7. electromagnetic clutch; 8. second rotating shaft; 9. secondary discharge hole; 10. grinding plate; 11. connecting block; 12. slot; 13. limit block; 14. limit slot; 15. connecting rod; 16. extension rod; 17. cylinder; 18. guide plate; 19. discharge chute; 20. motor; 21. driving gear; 22. driven gear; 23. support plate; 24. feed port; 25. spiral agent barrel; 26. linkage plate; 27. discharge chute; 28. cleaning rack; 29. ​​support plate; 30. guide rod; 31. spring; 32. brush; 33. connecting ring; 34. paddle plate; 35. limit ring; 36. roller; 37. bracket. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Embodiment 1:

[0033] Reference Figure 1-Figure 6A plastic extrusion molding machine includes an augers barrel 25 and a feed port 24 connected to the top of the augers barrel 25 , and also includes a grinding component capable of processing plastic particles into uniform sizes, and the grinding component is connected to the feed port 24 .

[0034] In this embodiment, a feeding process is proposed before hot melt extrusion. Before the plastic particles fall into the screw barrel 25, the plastic particles are ground so that the plastic particles are uniform in size before entering the screw barrel 25, ensuring that the heating time is the same and that they can be heated evenly in the screw barrel 25, thereby ensuring the quality of the finished plastic products.

[0035] Two groups of feed chutes 19 are symmetrically connected at the top of the feed inlet 24 , a support plate 23 is connected between the two groups of feed chutes 19 , and the grinding cylinder 1 is rotatably installed above the support plate 23 via the second rotating shaft 8 .

[0036] The plastic particles after two grindings fall into the feed port 24 through the feed chute 19, and finally enter the screw barrel 25 to be heated and extruded into the molding die, and then quickly cooled to obtain the finished plastic product.

[0037] The grinding assembly includes a grinding cylinder 1 and a centrifugal cylinder 2 arranged in the grinding cylinder 1. The centrifugal cylinder 2 is rotatably installed in the grinding cylinder 1. The centrifugal cylinder 2 is arranged as a conical cylinder structure, and primary discharge holes 3 are equidistantly opened on the cylinder wall of the centrifugal cylinder 2. Grinding balls 4 are arranged in the centrifugal cylinder 2.

[0038] In this embodiment, the centrifugal drum 2 is rotatably installed in the grinding drum 1, and the plastic particles to be processed are put into the centrifugal drum 2. Since the grinding balls 4 are arranged in the centrifugal drum 2, the high-speed operation of the centrifugal drum 2 generates friction between the plastic particles in the centrifugal drum 2 and the grinding balls 4. The plastic particles are polished by the mutual friction, and finally the particles meeting the set size are discharged through the primary discharge hole 3.

[0039] A passive gear 22 is fixedly mounted on the surface of the support plate 23 , a motor 20 is fixedly mounted below the support plate 23 , a driving gear 21 is fixedly mounted on the output shaft end of the motor 20 , and the driving gear 21 is meshed with the passive gear 22 .

[0040] In this embodiment, after the above-mentioned plastic particles are discharged from the centrifugal drum 2, in order to ensure subsequent uniform heating, the plastic particles are subjected to secondary grinding. The driving force of the grinding drum 1 comes from the motor 20. Specifically, a passive gear 22 is connected to the bottom of the grinding drum 1, and a driving gear 21 is fixedly installed on the output shaft end of the motor 20. After the driving gear 21 and the passive gear 22 are engaged, the rotation of the grinding drum 1 is ensured.

[0041] A stabilizing assembly is connected between the support plate 23 and the grinding cylinder 1, and the stabilizing assembly includes a limit ring 35, and rollers 36 are installed in a circular shape and equidistantly rotate inside the limit ring 35. The rollers 36 are arranged to fit the outer wall of the grinding cylinder 1. Two groups of brackets 37 are symmetrically installed on the support plate 23, and the brackets 37 and the limit ring 35 are fixedly connected.

[0042] In the present embodiment, since it is the body of the grinding cylinder 1 itself that rotates during the grinding process, a stabilizing component is provided between the support plate 23 and the grinding cylinder 1. Specifically, a limiting ring 35 is provided on the outer wall of the grinding cylinder 1, and four groups of rollers 36 are rotatably installed in the limiting ring 35. Nylon sleeves are provided on the surfaces of the rollers 36, and the nylon sleeves and the outer wall of the grinding cylinder 1 roll in contact. At the same time, the limiting ring 35 is connected to the support plate 23 through two groups of brackets 37, thereby ensuring the stability of the rotating structure of the grinding cylinder 1.

[0043] A grinding plate 10 and a linkage plate 26 are arranged in the grinding cylinder 1 . The grinding plate 10 and the linkage plate 26 are matched and arranged. The grinding plate 10 and the grinding cylinder 1 are rotatably connected. The linkage plate 26 is arranged in the grinding cylinder 1 so as to be liftable.

[0044] In this embodiment, when grinding, the grinding cylinder 1 rotates itself, and cooperates with the grinding plate 10 and the linkage plate 26 inside the electromagnetic clutch 7 to obtain plastic particles of a desired size.

[0045] Specifically, since the centrifugal cylinder 2 is arranged in the grinding cylinder 1, the plastic particles separated from the centrifugal cylinder 2 need to fall into the grinding cylinder 1 for secondary grinding. Therefore, the grinding components cooperating with the grinding cylinder 1 are divided into a grinding plate 10 and a linkage plate 26. A material discharge groove 27 is opened in the middle of the grinding plate 10. Therefore, the grinding plate 10 is connected to the center plate through two groups of connecting blocks 11. In addition, there are card slots 12 on the other two sides. The angle between the opening position of the card slot 12 and the setting position of the connecting block 11 is 90°.

[0046] Connecting rods 15 are symmetrically arranged above the linkage plate 26 , and two groups of cylinders 17 are arranged on the top of the grinding cylinder 1 . The telescopic rod ends of the cylinders 17 pass through the grinding cylinder 1 and are fixedly connected to the extension rods 16 , and the bottom ends of the extension rods 16 are fixedly connected to the connecting rods 15 .

[0047] When the linkage plate 26 and the grinding plate 10 are in a separated state, the plastic particles separated in the centrifugal cylinder 2 enter the grinding cylinder 1 through the discharge slot 27. After the plastic particles undergo a period of primary grinding and separation in the centrifugal cylinder 2, the grinding cylinder 1 and the grinding plate 10 need to perform secondary grinding on the plastic particles. Therefore, the starting cylinder 17 uses the connecting rod 15 and the extension rod 16 to drive the linkage plate 26 to move downward, the limit groove 14 and the connecting block 11 are engaged, the limit block 13 is clamped in the clamping groove 12, and the floating rotation of the grinding plate 10 is limited by the linkage plate 26. The motor 20 is started, and the engagement of the driving gear 21 and the driven gear 22 is used to drive the second rotating shaft 8 and thus the grinding cylinder 1 to rotate, and the above-mentioned secondary grinding operation is performed.

[0048] A material unloading slot 27 is provided in the grinding plate 10, a connecting block 11 is symmetrically arranged in the material unloading slot 27, and a clamping slot 12 is symmetrically provided in the material unloading slot 27, a limiting block 13 is symmetrically arranged on the outer circle of the linkage plate 26, and a limiting slot 14 is symmetrically provided on the bottom surface of the linkage plate 26, the clamping slot 12 and the limiting block 13 are matched, and the connecting block 11 and the limiting slot 14 are matched.

[0049] Plastic particles of a set size fall into the guide plate 18 through the secondary discharge hole 9 at the bottom of the grinding cylinder 1. Both sides of the guide plate 18 are inclined at a certain angle. Therefore, the falling materials enter the screw agent barrel 25 through the guide plate 18 and the discharge chute 19 to continue the hot melt molding process.

[0050] A connecting assembly is provided at the bottom of the centrifugal cylinder 2, and the connecting assembly includes a first rotating shaft 6. A fixing sleeve 5 is fixedly installed at the bottom of the centrifugal cylinder 2. The first rotating shaft 6 is arranged in the fixing sleeve 5. An electromagnetic clutch 7 is provided at the bottom of the first rotating shaft 6. The first rotating shaft 6 and the second rotating shaft 8 are connected through the electromagnetic clutch 7.

[0051] It should be noted that the connecting assembly connects the first rotating shaft 6 and the second rotating shaft 8 through the electromagnetic clutch 7. When the centrifugal cylinder 2 is grinding and separating, the motor 20 is started. Since it is meshed with the driving gear 21 and the passive gear 22, the starting of the motor 20 is connected to the second rotating shaft 8 through the gear meshing transmission, and the electromagnetic clutch 7 is started. The second rotating shaft 8 and the first rotating shaft 6 are fixedly connected, so that both the grinding cylinder 1 and the centrifugal cylinder 2 can be driven by the motor 20.

[0052] A cleaning assembly is elastically connected to the inner wall of the grinding cylinder 1, and the cleaning assembly is annularly equidistantly arrayed on the outer wall of the centrifugal cylinder 2. The cleaning assembly includes a cleaning frame 28 and a brush 32 provided on one side of the cleaning frame 28, the brush 32 is arranged in close contact with the outer wall of the centrifugal cylinder 2, a support plate 29 is fixedly installed on the inner wall of the grinding cylinder 1, a spring 31 is connected between the support plate 29 and the cleaning frame 28, a guide rod 30 is passed through the spring 31, the top end of the guide rod 30 is fixedly connected to the cleaning frame 28, and the guide rod 30 is slidably connected to the support plate 29, and the inclination angle of the cleaning frame 28 is matched with the taper of the centrifugal cylinder 2.

[0053] In this embodiment, six groups of cleaning components are arranged between the grinding cylinder 1 and the centrifugal cylinder 2. The cleaning frame 28 is installed on the inner wall of the grinding cylinder 1 through an elastic connecting component. The brush 32 is bent because it fits the outer wall of the centrifugal cylinder 2. When the centrifugal cylinder 2 is rotating, the brush 32 will penetrate / bend back and forth inside / outside the primary discharge hole 3, so as to clean the primary discharge hole 3 in time and avoid the primary discharge hole 3 from being blocked during the centrifugal treatment.

[0054] Embodiment 2:

[0055] It should be noted that, in the present embodiment, it is taken into consideration that the brush 32 cleans the primary discharge hole 3 when the centrifugal drum 2 rotates to prevent blockage. After separation, some plastic particles may be adsorbed on the outer surface of the centrifugal drum 2 due to static electricity generated by grinding. In order to ensure that all plastic particles in the grinding drum 1 can be put into use, a set of paddles 34 are installed at the connecting sleeve position of the connecting rod 15 and the extension rod 16 in the present application. The paddles 34 are made of hard rubber and are connected to the cleaning frames 28 by connecting rings 33. The paddles 34 can poke the connecting rings 33, matching the use of the spring 31 to drive the cleaning assembly to move up and down, and the centrifugal drum 2 rotates at the same time, so that the outer wall of the centrifugal drum 2 can be cleaned.

[0056] It should be noted that the paddle plate 34 is a rubber plate structure. During the downward movement, the connecting ring 33 is driven to move downward, thereby driving the cleaning frame 28 until the load of the extension limit of the spring 31 exceeds the pressure applied by the paddle plate 34 to the cleaning frame 28. After the paddle plate 34 is bent and deformed, it slips off the cleaning frame 28, and the spring 31 is reset. Due to inertia, it swings up and down to clean the outer wall of the centrifuge cylinder 2.

[0057] In the present invention, the plastic particles to be processed are put into the screw agent barrel 25, and the centrifugal barrel 2 and the grinding barrel 1 are respectively used for graded grinding, so that the plastic particles are uniform in size before entering the screw agent barrel 25, ensuring that the heating time is the same and the heating can be uniform in the screw agent barrel 25, thereby ensuring the quality of the finished plastic products;

[0058] The centrifugal drum 2 is rotatably installed in the grinding drum 1, and the plastic particles to be processed are put into the centrifugal drum 2. Since the grinding balls 4 are arranged in the centrifugal drum 2, the high-speed operation of the centrifugal drum 2 generates friction between the plastic particles in the centrifugal drum 2 and the grinding balls 4. The plastic particles are polished by the mutual friction, and finally the particles meeting the set size are discharged through the primary discharge hole 3, and the plastic particles are fully ground, thereby ensuring that the plastics are of the same size, which is convenient for subsequent hot melting.

[0059] After the electromagnetic clutch 7 is turned on, the motor 20 is started, and the meshing of the driving gear 21 and the driven gear 22 is used to drive the second rotating shaft 8 to rotate, and can drive the grinding cylinder 1 and the centrifugal cylinder 2 to rotate, and perform the grinding operation to meet the set size of plastic particles, so that the secondary discharge hole 9 at the bottom of the grinding cylinder 1 falls into the guide plate 18. The two sides of the guide plate 18 are inclined at a certain angle. Therefore, the falling material enters the screw agent barrel 25 through the guide plate 18 and the discharge chute 19 to continue the hot melt molding process.

[0060] During this period, when the linkage plate 26 and the grinding plate 10 are in a separated state, the plastic particles separated in the centrifugal cylinder 2 enter the grinding cylinder 1 through the feeding slot 27. After the plastic particles undergo a period of primary grinding and separation in the centrifugal cylinder 2, the grinding cylinder 1 and the grinding plate 10 need to perform secondary grinding on the plastic particles. Therefore, the starting cylinder 17 uses the connecting rod 15 and the extension rod 16 to drive the linkage plate 26 to move downward, the limit groove 14 and the connecting block 11 are engaged, and the limit block 13 is engaged in the card groove 12. The floating rotation of the grinding plate 10 is limited by the linkage plate 26, and the motor 20 is started. The engagement of the active gear 21 and the passive gear 22 drives the second rotating shaft 8 to drive the grinding cylinder 1 to rotate, and the above-mentioned secondary grinding operation is performed. Through the grinding separation and the grinding of the grinding plate 10, plastic particles of a set size and uniform size are finally obtained for hot melt extrusion to ensure the quality of the molded products.

[0061] Six groups of cleaning components are arranged between the grinding cylinder 1 and the centrifugal cylinder 2. The cleaning frame 28 is installed on the inner wall of the grinding cylinder 1 through an elastic connection component. The brush 32 is bent because it fits the outer wall of the centrifugal cylinder 2. When the centrifugal cylinder 2 is rotating, the brush 32 will penetrate / bend back and forth inside / outside the primary discharge hole 3, so as to clean the primary discharge hole 3 in time and avoid the primary discharge hole 3 from being blocked during the centrifugal treatment.

[0062] A paddle plate 34 is provided at the connection position of the connecting rod 15 and the extension rod 16. The paddle plate 34 can paddle the connecting ring 33, and the use of the matching spring 31 drives the cleaning assembly to move up and down, and the centrifugal cylinder 2 rotates at the same time to complete the cleaning of the outer wall of the centrifugal cylinder 2, and prevent plastic particles from remaining on the outer wall of the centrifugal cylinder 2, so that the device can make full use of the plastic particles and avoid residual.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic extrusion molding machine, comprising an augers barrel (25) and a feed port (24) connected to the top of the augers barrel (25), characterized in that: Also included is a grinding assembly capable of processing plastic particles to a uniform size, the grinding assembly being in communication with a feed port (24), and comprising a grinding cylinder (1) and a centrifugal cylinder (2) disposed within the grinding cylinder (1); A cleaning component elastically connected to the inner wall of the grinding cylinder (1), wherein the cleaning components are arranged in an annular equidistant array on the outer wall of the centrifugal cylinder (2); A grinding plate (10) and a linkage plate (26) are arranged in the grinding cylinder (1); the grinding plate (10) and the linkage plate (26) are arranged in a matching manner; the grinding plate (10) and the grinding cylinder (1) are rotatably connected; and the linkage plate (26) is arranged in the grinding cylinder (1) in a liftable manner; A connecting rod (15) is symmetrically arranged above the linkage plate (26); two groups of cylinders (17) are arranged on the top of the grinding cylinder (1); the telescopic rod ends of the cylinders (17) penetrate the grinding cylinder (1) and are fixedly connected to an extension rod (16); the bottom end of the extension rod (16) is fixedly connected to the connecting rod (15); The grinding plate (10) is provided with a material discharge slot (27), the material discharge slot (27) is symmetrically provided with a connecting block (11), and the material discharge slot (27) is symmetrically provided with a clamping slot (12), the outer ring of the linkage plate (26) is symmetrically provided with a limit block (13), and the bottom surface of the linkage plate (26) is symmetrically provided with a limit slot (14), the clamping slot (12) and the limit block (13) are matched, and the connecting block (11) and the limit slot (14) are matched.

2. A plastic extrusion molding machine according to claim 1, characterized in that: Two groups of feed troughs (19) are symmetrically connected at the top of the feed inlet (24), a support plate (23) is connected between the two groups of feed troughs (19), and the grinding cylinder (1) is rotatably mounted above the support plate (23) via a second rotating shaft (8).

3. A plastic extrusion molding machine according to claim 2, characterized in that: A passive gear (22) is fixedly mounted on the surface of the support plate (23), a motor (20) is fixedly mounted below the support plate (23), a driving gear (21) is fixedly mounted on the output shaft end of the motor (20), and the driving gear (21) is meshed with the passive gear (22).

4. A plastic extrusion molding machine according to claim 3, characterized in that: A stabilizing component is connected between the support plate (23) and the grinding cylinder (1), the stabilizing component comprising a limiting ring (35), a roller (36) being rotatably mounted in an annular manner and equidistantly within the limiting ring (35), the roller (36) being arranged to fit the outer wall of the grinding cylinder (1), and two groups of brackets (37) being symmetrically mounted on the support plate (23), the brackets (37) being fixedly connected to the limiting ring (35).

5. A plastic extrusion molding machine according to claim 2, characterized in that: The centrifugal cylinder (2) is rotatably mounted in the grinding cylinder (1); the centrifugal cylinder (2) is configured as a conical cylinder structure, and primary discharge holes (3) are equidistantly provided on the cylinder wall of the centrifugal cylinder (2); and grinding balls (4) are arranged in the centrifugal cylinder (2).

6. A plastic extrusion molding machine according to claim 5, characterized in that: A connecting assembly is provided at the bottom of the centrifugal cylinder (2), the connecting assembly comprising a first rotating shaft (6), a fixing sleeve (5) is fixedly mounted at the bottom of the centrifugal cylinder (2), the first rotating shaft (6) is arranged in the fixing sleeve (5), an electromagnetic clutch (7) is provided at the bottom end of the first rotating shaft (6), and the first rotating shaft (6) and the second rotating shaft (8) are connected via the electromagnetic clutch (7).

7. A plastic extrusion molding machine according to claim 1, characterized in that: The cleaning assembly comprises a cleaning frame (28) and a brush (32) provided on one side of the cleaning frame (28); the brush (32) is arranged in close contact with the outer wall of the centrifugal cylinder (2); a support plate (29) is fixedly installed on the inner wall of the grinding cylinder (1); a spring (31) is connected between the support plate (29) and the cleaning frame (28); a guide rod (30) passes through the spring (31); the top end of the guide rod (30) is fixedly connected to the cleaning frame (28), and the guide rod (30) is slidably connected to the support plate (29); the inclination angle of the cleaning frame (28) is matched with the taper of the centrifugal cylinder (2).

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