Extrusion molding machine for plastic processing

Abstract

The utility model relates to the technical field of plastic processing, and discloses an extrusion molding machine for plastic processing, which comprises a bottom frame and a cylinder body, a top seat is arranged at the top end of the bottom frame, and the cylinder body is fixedly arranged at the top end of the top seat. According to the extrusion molding machine for plastic processing, when the extrusion molding machine is operated and used, a gear motor can be controlled to start and drive a mounting plate and a scraping strip to rotate at the top end of a sieve plate, and then plastic particle raw materials can be guided into the sieve plate in the top end of a feeding barrel; plastic particle raw materials conforming to the particle size can be downwards screened out and fed from the leaking holes in the sieve plate, particles and impurities with large sizes can be intercepted at the top end of the sieve plate, the plastic particle raw materials are filtered to remove impurities, feeding blockage can be reduced, meanwhile, the purity of extruded plastic is improved, and the service life of the extruded plastic is prolonged. The problem that auxiliary filtering and purifying treatment cannot be conveniently carried out on added plastic particle raw materials is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to an extrusion molding machine used for plastic processing. Background Art

[0002] Plastic processing, also known as plastic forming processing, refers to various processing techniques for converting synthetic resins or plastics into plastic products, generally including plastic batching, molding, machining, joining, modification and assembly. Extrusion molding machine is a widely used equipment for plastic processing and molding, also known as extrusion or extrusion molding. It uses the effect of hydraulic pressure on the mold itself to make the material pass through the action between the extruder barrel and the screw. While being heated and plasticized, it is pushed forward by the screw and continuously passes through the head to form various cross-section products or semi-finished products.

[0003] However, when an extrusion molding machine used for plastic processing uses the method of melting plastic particles for heating, melting and extruding to produce plastic workpieces, during the extrusion process of introducing the plastic particle raw materials into the internal extruder, the plastic particles may contain some raw materials with larger particle sizes or impurities, which cannot be melted and heated after being introduced into the extruder. This not only easily causes blockage at the feed port position, but also leads to mixing of components in the extruded raw materials. This is insufficient and is not convenient for auxiliary filtering and purification of the added plastic particle raw materials.

[0004] Now, a novel extrusion molding machine for plastic processing is proposed to solve the above-mentioned disadvantages. Utility Model Content

[0005] The purpose of the utility model is to provide an extrusion molding machine for plastic processing, so as to solve the problem in the above background technology that it is inconvenient to perform auxiliary filtering and purification treatment on the added plastic particle raw materials.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an extrusion molding machine for plastic processing, comprising a base frame and a barrel, wherein a top seat is provided at the top of the base frame, and the barrel is fixedly mounted on the top of the top seat, a feed barrel is fixedly mounted on the right side of the top of the barrel, and a filtering mechanism is provided inside the top of the feed barrel for assisting in filtering and removing impurities from added plastic granular raw materials;

[0007] The filtering mechanism includes a bracket, a mounting plate, a reduction motor, a scraper, an outer frame, a sieve plate, a slot and an insert block. The outer frame is provided inside the top of the feed barrel, and a sieve plate is fixed inside the outer frame. Insert blocks are fixed on both sides and both ends of the outer frame. Slots are provided on both sides and both ends of the top of the feed barrel. A bracket is fixed on the top of the outside of the feed barrel, and a reduction motor is fixed on the top of the bracket. A mounting plate is provided on the top of the feed barrel, and a scraper is fixed on the bottom end of the mounting plate.

[0008] Furthermore, the slots are slidably inserted into the interior of the insert block, and a plurality of scraping strips are fixed at equal intervals on the bottom end of the mounting plate.

[0009] Furthermore, the output shaft of the reduction motor passes through the interior of the top end of the bracket and is fixedly connected to the top end of the mounting plate.

[0010] Preferably, an outer cover is provided on the outside of the cylinder, and a thermal insulation pad is fixed on the inner side of the outer cover, side panels are welded and fixed to the bottoms of both ends of the outer cover, and connecting bolts are provided on the tops of the side panels, three groups of threaded holes for fitting with the connecting bolts are respectively opened at both ends of the top of the top seat, a thermal insulation pad is fixed on the outside of the outer cover, and both sides of the cylinder pass through both sides of the outer cover respectively.

[0011] Furthermore, three groups of connecting bolts are arranged at equal intervals on the top of the side plate, and the bottom ends of the connecting bolts pass through the interior of the side plate and are rotatably connected in the threaded holes.

[0012] Preferably, guide rods are vertically fixed at the four corners of the bottom end of the top seat, sliding sleeves are fixed at both ends of the two sides of the base frame, electric push rods are installed and fixed on both sides of the bottom end of the base frame, and the output end of the top of the electric push rod is fixedly connected to the bottom end of the top seat, and the guide rod runs through the interior of the sliding sleeve.

[0013] Preferably, an extrusion die is fixedly installed on the left side of the cylinder, an extrusion screw is movably connected laterally inside the cylinder, a reducer is fixedly installed on the right side of the top of the top seat, and a drive motor is fixedly installed on the right side of the reducer; four sets of heaters are fixedly installed on the outside of the cylinder.

[0014] Preferably, the right side of the extrusion screw passes through the inside of the right side of the barrel, the output shaft of the drive motor is fixedly connected to the input shaft of the reducer, and the output shaft of the reducer is fixedly connected to the right side of the extrusion screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the extrusion molding machine for plastic processing not only facilitates the auxiliary filtering and purification treatment of the added plastic granule raw materials, facilitates the protection of the outer side of the extrusion molding machine, but also facilitates the adjustment of the extrusion operation height of the extrusion molding machine;

[0016] (1) By providing a feed barrel, a bracket, a mounting plate, a reduction motor, a scraper, an outer frame, a sieve plate, a slot and an insert, when the extruder is in operation, the reduction motor can be controlled to start driving the mounting plate and the scraper to rotate on the top of the sieve plate, and then the plastic granule raw material can be introduced into the sieve plate inside the top of the feed barrel. By scraping with the scraper, the plastic granule raw material that meets the particle size can be screened out from the leakage hole inside the sieve plate and fed downward. Some larger particles and impurities will be trapped on the top of the sieve plate. By filtering and removing impurities from the plastic granule raw material, feeding blockage can be reduced and the purity of the extruded plastic can be improved.

[0017] (2) By providing a top seat, a cylinder, an outer cover, a heat-insulating pad, a heat-insulating pad, connecting bolts, side panels and threaded holes, when the extruder is installed and used, the outer cover can be inserted into the outside of the cylinder on the left side of the top of the top seat, and the side panels can be attached to the top of the top seat. Then, by using connecting bolts to penetrate the inside of the side panels and screwing them into the threaded holes to lock them, the outer cover can be installed and fixed on the outside of the cylinder. The outer cover can provide auxiliary anti-collision protection for the outside of the extruder. At the same time, the heat-insulating pad fixed on the inside of the outer cover can also provide external heat insulation for the cylinder when it is in a heated state. In addition, a heat-insulating pad is fixed on the outside of the outer cover to isolate the heat of the extruder, reduce and prevent the risk of burns to the operator, and improve the safety of the extruder during operation.

[0018] (3) By providing a base frame, a top seat, a sliding sleeve, a guide rod and an electric push rod, when the extrusion molding machine is in use, the electric push rod can be controlled to start, the output end can be extended upward, and at the same time, the top seat and the top barrel can be moved upward and lifted, so that the extrusion operation height of the extrusion molding machine can be adjusted conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the screen plate of the present invention;

[0021] Figure 3 This is a schematic diagram of the top view of the bracket structure of the present invention;

[0022] Figure 4 This is an enlarged side view of the structure of the outer cover of the present invention.

[0023] In the figure: 1. Base frame; 2. Top seat; 3. Extrusion die head; 4. Cylinder; 5. Extrusion screw; 6. Outer cover; 7. Insulation pad; 8. Heater; 9. Feed barrel; 10. Bracket; 11. Mounting plate; 12. Reducer motor; 13. Scraper bar; 14. Outer frame; 15. Screen plate; 16. Reducer; 17. Drive motor; 18. Sliding sleeve; 19. Guide rod; 20. Electric push rod; 21. Slot; 22. Insert block; 23. Insulation pad; 24. Connecting bolt; 25. Side panel; 26. Threaded hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 , an extrusion molding machine for plastic processing, comprising a base frame 1 and a barrel 4, a top seat 2 is provided at the top of the base frame 1, and the barrel 4 is fixedly mounted on the top of the top seat 2, a feed barrel 9 is fixedly mounted on the right side of the top of the barrel 4, and a filtering mechanism for assisting in filtering and removing impurities from the added plastic granular raw materials is provided inside the top of the feed barrel 9;

[0026] The filtering mechanism includes a bracket 10, a mounting plate 11, a reduction motor 12, a scraper 13, an outer frame 14, a sieve plate 15, a slot 21 and an insert 22. The outer frame 14 is provided inside the top of the feed barrel 9, and the sieve plate 15 is fixed inside the outer frame 14. Inserts 22 are fixed on both sides and both ends of the outer frame 14. Slots 21 are provided on both sides and both ends of the top of the feed barrel 9. The bracket 10 is fixed to the top of the outside of the feed barrel 9, and the reduction motor 12 is fixed to the top of the bracket 10. The top of the feed barrel 9 is provided with a mounting plate 11, and the scraper 13 is fixed to the bottom end of the mounting plate 11.

[0027] The slot 21 is slidably inserted into the interior of the insert block 22, and multiple groups of scrapers 13 are fixed at equal intervals on the bottom end of the mounting plate 11. The output shaft of the reduction motor 12 passes through the interior of the top end of the bracket 10 and is fixedly connected to the top end of the mounting plate 11.

[0028] Specifically, if Figure 1-Figure 3As shown, the reduction motor 12 can be controlled to start driving the mounting plate 11 and the scraper 13 to rotate at the top of the sieve plate 15, and then the plastic granular raw material can be introduced into the sieve plate 15 inside the top of the feed barrel 9. By scraping with the scraper 13, the plastic granular raw material that meets the particle size can be screened out from the leakage holes inside the sieve plate 15 and fed downward. Some larger particles and impurities will be trapped at the top of the sieve plate 15. By filtering and removing impurities from the plastic granular raw material, the feeding blockage can be reduced and the purity of the extruded plastic can be improved.

[0029] Example 2: An outer cover 6 is provided on the outside of the cylinder 4, and a thermal insulation pad 7 is fixed to the inner side of the outer cover 6. Side plates 25 are welded and fixed to the bottoms of both ends of the outer cover 6, and connecting bolts 24 are provided on the tops of the side plates 25. Three groups of threaded holes 26 for fitting with the connecting bolts 24 are respectively opened at both ends of the top of the top seat 2. A thermal insulation pad 23 is fixed to the outside of the outer cover 6. The two sides of the cylinder 4 pass through the two sides of the outer cover 6 respectively. Three groups of connecting bolts 24 are provided at equal intervals on the tops of the side plates 25. The bottom ends of the connecting bolts 24 pass through the inside of the side plates 25 and are rotatably connected to the threaded holes 26.

[0030] Specifically, if Figure 1 and Figure 4 As shown, the outer cover 6 can be inserted into the outside of the cylinder 4 on the left side of the top of the top seat 2, and the side plate 25 can be attached to the top of the top seat 2. Then, the outer cover 6 can be installed and fixed on the outside of the cylinder 4 by using the connecting bolts 24 to penetrate the inside of the side plate 25 and screwed into the threaded holes 26 to lock it. The outer cover 6 can provide auxiliary anti-collision protection for the outside of the extruder. At the same time, the insulation pad 7 fixed on the inside of the outer cover 6 can also perform external insulation on the cylinder 4 in the heating state, and an insulation pad 23 is also fixed on the outside of the outer cover 6 to isolate the heat of the extruder, reduce and prevent the risk of scalding for operators, and improve the safety of the extrusion molding machine during operation.

[0031] Example 3: Guide rods 19 are vertically fixed at the four corners of the bottom end of the top seat 2, and sliding sleeves 18 are fixed at both ends of the inner side of the bottom frame 1. Electric push rods 20 are installed and fixed on both sides of the bottom end of the bottom frame 1, and the output end of the top of the electric push rod 20 is fixedly connected to the bottom end of the top seat 2. The guide rods 19 pass through the interior of the sliding sleeves 18;

[0032] Specifically, if Figure 1 As shown, the electric push rod 20 can be controlled to start, the output end can be extended upward, and the top seat 2 and the top cylinder 4 can be moved upward at the same time, so as to facilitate the adjustment of the extrusion operation height of the extrusion molding machine.

[0033] The extrusion die head 3 is fixed to the left side of the barrel 4, and the extrusion screw 5 is laterally movably connected to the inside of the barrel 4. A reducer 16 is fixed to the right side of the top of the top seat 2, and a drive motor 17 is fixed to the right side of the reducer 16. Four groups of heaters 8 are fixed to the outside of the barrel 4, and the right side of the extrusion screw 5 passes through the inside of the right side of the barrel 4. The output shaft of the drive motor 17 is fixedly connected to the input shaft of the reducer 16, and the output shaft of the reducer 16 is fixedly connected to the right side of the extrusion screw 5.

[0034] Working principle: When the extrusion molding machine of the present invention is installed and used, the outer cover 6 provided can be inserted into the outside of the cylinder 4 on the left side of the top of the top seat 2, and the side plate 25 can be attached to the top of the top seat 2. Then, the outer cover 6 can be installed and fixed to the outside of the cylinder 4 by using the connecting bolts 24 to penetrate the inside of the side plate 25 and screwed into the threaded holes 26 to lock it. The outer cover 6 can provide auxiliary anti-collision protection for the outside of the extruder. At the same time, the insulation pad 7 fixed on the inside of the outer cover 6 can also provide external insulation for the cylinder 4 when it is in a heated state, and an insulation pad 23 is also fixed on the outside of the outer cover 6 to isolate the heat of the extruder. When the extrusion molding machine is in operation, the reduction motor 12 can be controlled to start driving the mounting plate 11 and the scraper 13 to rotate on the top of the sieve plate 15, and then the plastic particles can be The granular raw material is introduced into the sieve plate 15 inside the top of the feed barrel 9. By scraping with the scraper 13, the plastic granular raw material that meets the particle size can be screened out and loaded downward from the leakage hole inside the sieve plate 15. Some larger particles and impurities will be trapped at the top of the sieve plate 15, and the plastic granular raw material is filtered and impurity-removed. After the plastic granular raw material is introduced from the feed barrel 9 into the interior of the barrel 4, it can be driven to the left by the rotating extrusion screw 5. During the movement, it is heated by the heater 8 to melt it, and finally extruded from the left side of the barrel 4 to the extrusion die 3 for molding. When the extrusion molding machine is in use, it can also be started by controlling the electric push rod 20, the output end extends upward, and at the same time, the top seat 2 and the top barrel 4 can be moved up and lifted, so that the extrusion operation height of the extrusion molding machine can be flexibly adjusted.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An extrusion molding machine for plastic processing, comprising a base frame (1) and a barrel (4), characterized in that: A top seat (2) is provided at the top of the base frame (1), and a cylinder (4) is fixedly mounted on the top of the top seat (2), a feed cylinder (9) is fixedly mounted on the right side of the top of the cylinder (4), and a filtering mechanism for assisting in filtering and removing impurities from the added plastic granular raw materials is provided inside the top of the feed cylinder (9); The filtering mechanism comprises a bracket (10), a mounting plate (11), a reduction motor (12), a scraper (13), an outer frame (14), a sieve plate (15), a slot (21) and an insert (22); an outer frame (14) is provided inside the top of the feed barrel (9), and a sieve plate (15) is fixed inside the outer frame (14); inserts (22) are fixed on both sides and both ends of the outer frame (14); slots (21) are provided on both sides and both ends of the top of the feed barrel (9); a bracket (10) is fixed on the top of the outside of the feed barrel (9), and a reduction motor (12) is fixed on the top of the bracket (10); a mounting plate (11) is provided at the top of the feed barrel (9), and a scraper (13) is fixed on the bottom end of the mounting plate (11).

2. An extrusion molding machine for plastic processing according to claim 1, characterized in that: The slots (21) are slidably inserted into the inserting block (22), and a plurality of scraping strips (13) are fixed at equal intervals on the bottom end of the mounting plate (11).

3. The extrusion molding machine for plastic processing according to claim 1, characterized in that: The output shaft of the reduction motor (12) passes through the interior of the top end of the bracket (10) and is fixedly connected to the top end of the mounting plate (11).

4. The extrusion molding machine for plastic processing according to claim 1, characterized in that: An outer cover (6) is provided on the outer side of the cylinder (4), and a heat-insulating pad (7) is fixed on the inner side of the outer cover (6). Side plates (25) are welded and fixed to the bottoms of both ends of the outer cover (6), and connecting bolts (24) are provided on the top ends of the side plates (25). Three groups of threaded holes (26) for fitting with the connecting bolts (24) are respectively provided at both ends of the top of the top seat (2). A heat-insulating pad (23) is fixed on the outer side of the outer cover (6), and both sides of the cylinder (4) respectively pass through both sides of the outer cover (6).

5. The extrusion molding machine for plastic processing according to claim 4, characterized in that: The connecting bolts (24) are arranged in three groups at equal intervals on the top of the side plate (25). The bottom ends of the connecting bolts (24) pass through the inside of the side plate (25) and are rotatably connected in the threaded holes (26).

6. The extrusion molding machine for plastic processing according to claim 1, characterized in that: Guide rods (19) are vertically fixed at the four corners of the bottom end of the top seat (2), and sliding sleeves (18) are fixed at both ends of the inside of the base frame (1). Electric push rods (20) are installed and fixed on both sides of the bottom end of the base frame (1), and the output end of the top of the electric push rod (20) is fixedly connected to the bottom end of the top seat (2), and the guide rod (19) passes through the inside of the sliding sleeve (18).

7. The extrusion molding machine for plastic processing according to claim 1, characterized in that: An extrusion die head (3) is fixedly mounted on the left side of the barrel (4), an extrusion screw (5) is movably connected laterally inside the barrel (4), a reducer (16) is fixedly mounted on the right side of the top of the top seat (2), and a drive motor (17) is fixedly mounted on the right side of the reducer (16). Four groups of heaters (8) are fixedly mounted on the outside of the barrel (4).

8. The extrusion molding machine for plastic processing according to claim 7, characterized in that: The right side of the extrusion screw (5) passes through the inside of the right side of the barrel (4), the output shaft of the drive motor (17) is fixedly connected to the input shaft of the reducer (16), and the output shaft of the reducer (16) is fixedly connected to the right side of the extrusion screw (5).

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