Plastic extruder convenient to clean and maintain

Abstract

The utility model discloses a plastic extruder convenient to clean and maintain, which belongs to the technical field of extruders and comprises a base, a first motor is mounted at the top of the base, a rotating shaft is mounted at one end of an output shaft of the first motor, a second screw is mounted at the other end of the rotating shaft, and a supporting piece is connected to the top of the base. A charging barrel is mounted at the top of the supporting piece, a plurality of grooves are formed in the inner side of the charging barrel, mounting blocks are mounted on the inner sides of the grooves, protective sleeves are connected to the inner sides of the mounting blocks, the inner sides of the protective sleeves are rotationally connected with the other ends of the second screw rods, a hopper is mounted at the top of the charging barrel, and a cover plate is mounted on the inner side of the hopper; a uniform feeding device is arranged on the inner side of the hopper; according to the device, the cleaning assembly is arranged, so that the inner wall of the protective sleeve is synchronously brushed and cleaned while the second screw rod rotates, rapid and effective cleaning is achieved, the cleaning effect is optimized, the discharging speed is increased, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extruders, and in particular relates to a plastic extruder which is easy to clean and maintain. Background Art

[0002] Plastic extruder is also called plastic extrusion molding equipment. In plastic extrusion molding equipment, plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine is called the auxiliary machine. After more than a hundred years of development, plastic extruder has evolved from the original single screw to twin screw, multi-screw, and even screwless models. Plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, plates, monofilaments, flat wires, strapping tapes, extruded nets, plates, profiles, granulation, cable coating, etc. to form various plastic extrusion molding production lines and produce various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machines in the plastic processing industry now or in the future.

[0003] When feeding powder or granular materials into the hopper, the existing plastic extruders will inevitably mix in some impurities and some un-crushed raw materials. If these impurities and un-crushed raw materials are mixed with hard impurities and flow into the extrusion barrel, the processing becomes more difficult, which will not only affect the quality of the extrudate, but also cause wear to the screw and the extrusion barrel, reducing the service life of the equipment. Secondly, when the plastic extruder needs to replace the raw materials after use, it is generally necessary to clean the residual raw materials inside the plastic extruder. The existing plastic extruder cannot effectively clean the inner wall of the barrel, which leads to a decrease in the cleaning efficiency of the extruder and a slow feeding speed. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve the problems of uneven material feeding and poor cleaning effect in the prior art and to provide a plastic extruder which is easy to clean and maintain.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plastic extruder which is easy to clean and maintain, comprises a base, a first motor is installed on the top of the base, a rotating shaft is installed on one end of the output shaft of the first motor, a second screw is installed on the other end of the rotating shaft, a support is connected to the top of the base, a barrel is installed on the top of the support, a plurality of grooves are provided on the inner side of the barrel, mounting blocks are slidably connected to the inner sides of the grooves, and protective sleeves are connected to the inner sides of the plurality of mounting blocks, the inner sides of the protective sleeves are rotatably connected to the other end of the second screw, a hopper is installed on the top of the barrel, a cover is installed on the inner side of the hopper, a uniform feeding device is provided on the inner side of the hopper, a drive box is installed on the outer side of one end of the rotating shaft, a fixed disc is connected to one side of the drive box, and a cleaning component is provided on the inner side of the drive box.

[0007] As a further description of the above technical solution:

[0008] The uniform feeding device includes a second motor, which is installed on the top of the cover plate through a mounting plate, a rotating rod is installed at one end of the output shaft of the second motor, a plurality of stirring blades are installed on the outside of the rotating rod, a feeding pipe is installed at the bottom of the hopper, a first screw is installed on the inside of the feeding pipe, and the top end of the first screw is connected to the bottom end of the rotating rod.

[0009] As a further description of the above technical solution:

[0010] The cleaning assembly includes a cleaning scraper, a fixed block is connected to the inner side of the drive box, an inner gear ring is connected to the bottom of the fixed block, a driving gear is installed on the outer side of the rotating shaft, a driven gear is meshed on one side of the driving gear, the outer side of the driven gear is meshed with the inner side of the inner gear ring, a rotating rod is installed on the inner side of the driven gear, a cleaning scraper is connected to the other end of the rotating rod, the bottom of the cleaning scraper is in contact with the inner wall of the protective sleeve, a through groove is opened on the inner side of the fixed disc, and the outer side of the rotating rod is rotatably connected to the inner side of the through groove.

[0011] As a further description of the above technical solution:

[0012] One end of the rotating shaft is connected to the other end of the second screw, a water tank is installed on the top of the base, the top of the water tank is connected to a water inlet pipe, the other end of the water inlet pipe is connected to a water supply pipe, a plurality of water outlet pipes are opened at the bottom of the water supply pipe, a plurality of water inlet holes are opened on the outside of the barrel, and the top of the water inlet hole is connected to the bottom of the water outlet pipe.

[0013] As a further description of the above technical solution:

[0014] A connecting piece is installed at one end of the barrel away from the first motor, and a plurality of fastening bolts are installed on one side of the connecting piece.

[0015] As a further description of the above technical solution:

[0016] An electrical control cabinet is installed on the top of the base, a discharge port is installed at the other end of the barrel, and the second screw is located inside the barrel.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. In the utility model, by setting a cleaning component, when it is necessary to clean the inside of the equipment, one end of the first motor output shaft rotates to drive the rotating shaft to rotate, and the rotation of the rotating shaft drives the second screw to rotate, so as to transport materials. The rotation of the rotating shaft drives the driving gear to rotate at the same time, and the rotation of the driving gear drives the driven gear on one side to rotate and revolve around the driving gear on the inner side of the inner gear ring. The rotation of the driven gear drives the rotating rod to rotate in the through groove, and the rotating rod rotates to rotate the cleaning scraper, and the bottom of the cleaning scraper is in contact with the inner side of the protective cover. At this time, the water tank supplies water to the inner wall of the protective cover through the water outlet pipe and multiple water inlet holes, so that when the second screw rotates, the inner wall of the protective cover is synchronously scrubbed and cleaned, thereby achieving fast and effective cleaning, optimizing the cleaning effect, speeding up the material discharge speed, and improving work efficiency.

[0019] 2. In the utility model, by setting a uniform feeding device, when it is necessary to discharge materials, when feeding powder or granular materials into the hopper, one end of the second motor output shaft rotates and drives the rotating rod to rotate, and the rotation of the rotating rod drives multiple stirring blades to rotate, thereby crushing the solid material, reducing the processing difficulty, and avoiding the jamming of the second screw on the inner side of the barrel. The rotation of the rotating rod drives the first screw at the bottom to rotate, and the rotation of the first screw realizes the rapid feeding of the feeding pipe, and the rotation of the stirring blades can realize the uniform feeding of plastic particles, and the plastic particles are divided and refined, so that the materials are fully mixed, the mixing effect is improved, and the work efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0023] Legend:

[0024] 1. Base; 2. Electrical control cabinet; 3. Water storage tank; 4. First motor; 5. Drive box; 6. Uniform feeding device; 601. Second motor; 602. Rotating rod; 603. Stirring blade; 604. First screw; 605. Feed pipe; 7. Cleaning assembly; 701. Cleaning scraper; 702. Rotating rod; 703. Driven gear; 704. Driving gear; 705. Through groove; 706. Fixed block; 707. Internal gear ring; 8. Hopper; 9. Cover plate; 10. Water inlet pipe; 11. Water outlet pipe; 12. Water delivery pipe; 13. Barrel; 14. Support; 15. Connector; 16. Discharge port; 17. Protective cover; 18. Mounting block; 19. Fastening bolt; 20. Water inlet hole; 21. Second screw; 22. Rotating shaft; 23. Fixed disc. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3 The utility model provides a technical solution: a plastic extruder that is easy to clean and maintain, including a base 1, a first motor 4 is installed on the top of the base 1, a rotating shaft 22 is installed at one end of the output shaft of the first motor 4, and a second screw 21 is installed at the other end of the rotating shaft 22, a support member 14 is connected to the top of the base 1, a barrel 13 is installed on the top of the support member 14, a plurality of grooves are opened on the inner side of the barrel 13, and a mounting block 18 is slidably connected to the inner side of the groove, and a plurality of mounting blocks 18 are connected to the inner side of the plurality of mounting blocks 18, and the inner side of the protective sleeve 17 is rotatably connected to the other end of the second screw 21, a hopper 8 is installed on the top of the barrel 13, a cover plate 9 is installed on the inner side of the hopper 8, a uniform feeding device 6 is provided on the inner side of the hopper 8, and a drive box is installed on the outer side of one end of the rotating shaft 22 5, a fixed disc 23 is connected to one side of the drive box 5, a cleaning assembly 7 is arranged inside the drive box 5, one end of the rotating shaft 22 is connected to the other end of the second screw 21, a water storage tank 3 is installed on the top of the base 1, a water inlet pipe 10 is connected to the top of the water storage tank 3, the other end of the water inlet pipe 10 is connected to the water delivery pipe 12, a plurality of water outlet pipes 11 are provided at the bottom of the water delivery pipe 12, a plurality of water inlet holes 20 are provided on the outside of the barrel 13, the top of the water inlet hole 20 is connected to the bottom of the water outlet pipe 11, a connector 15 is installed at one end of the barrel 13 away from the first motor 4, a plurality of fastening bolts 19 are installed on one side of the connector 15, an electrical control cabinet 2 is installed on the top of the base 1, a discharge port 16 is installed at the other end of the barrel 13, and the second screw 21 is located inside the barrel 13;

[0027] The uniform feeding device 6 includes a second motor 601, which is mounted on the top of the cover plate 9 through a mounting plate, a rotating rod 602 is mounted on one end of the output shaft of the second motor 601, and a plurality of stirring blades 603 are mounted on the outer side of the rotating rod 602, a feeding pipe 605 is mounted at the bottom of the hopper 8, and a first screw 604 is mounted on the inner side of the feeding pipe 605, and the top end of the first screw 604 is connected to the bottom end of the rotating rod 602;

[0028] The specific implementation method is as follows: when it is necessary to discharge materials, when feeding powder or granular materials into the hopper 8, the second motor 601 is turned on, and one end of the output shaft of the second motor 601 rotates while driving the rotating rod 602 to rotate. The rotating rod 602 rotates and drives multiple stirring blades 603 to rotate, thereby crushing the solid materials, reducing the processing difficulty, and avoiding the jamming of the second screw 21 inside the barrel 13. The rotating rod 602 rotates while driving the first screw 604 at the bottom to rotate. The first screw 604 rotates to realize the rapid feeding of the feeding pipe 605, and the uniform feeding of plastic particles can be realized by the rotation of the stirring blades 603. The designed protective sleeve 17 and multiple mounting blocks 18 are conducive to the rapid positioning and installation of the protective sleeve 17 inside the barrel 13 from one side through the connecting piece 15 and the fastening bolts 19, which not only has a certain protective effect on the barrel 13, but also the plastic particles do not need to directly contact the inner wall of the barrel 13, and the protective sleeve 17 can be quickly installed and replaced, which is convenient for the staff to maintain the equipment;

[0029] The cleaning assembly 7 includes a cleaning scraper 701, a fixed block 706 is connected to the inner side of the drive box 5, an inner gear ring 707 is connected to the bottom of the fixed block 706, a driving gear 704 is installed on the outer side of the rotating shaft 22, a driven gear 703 is meshed on one side of the driving gear 704, the outer side of the driven gear 703 is meshed with the inner side of the inner gear ring 707, a rotating rod 702 is installed on the inner side of the driven gear 703, the other end of the rotating rod 702 is connected to the cleaning scraper 701, the bottom of the cleaning scraper 701 is in contact with the inner wall of the protective sleeve 17, a through groove 705 is opened on the inner side of the fixed disc 23, and the outer side of the rotating rod 702 is rotatably connected to the inner side of the through groove 705.

[0030] The specific implementation method is as follows: when it is necessary to clean the inside of the equipment, turn on the first motor 4, and one end of the output shaft of the first motor 4 rotates to drive the rotating shaft 22 to rotate, and the rotating shaft 22 rotates to drive the second screw 21 to rotate, so as to transport materials. The rotating shaft 22 rotates and drives the driving gear 704 to rotate. The driving gear 704 rotates to drive the driven gear 703 on one side to rotate and revolve around the driving gear 704 inside the inner gear ring 707. The driven gear 703 rotates to drive the rotating rod 702 in the through groove 705. Rotate, the rotating rod 702 rotates the cleaning scraper 701, and the bottom of the cleaning scraper 701 fits with the inner side of the protective sleeve 17. At this time, the water tank 3 supplies water to the inner wall of the protective sleeve 17 through the water outlet pipe 11 and multiple water inlet holes 20, so that while the second screw 21 rotates, the inner wall of the protective sleeve 17 is synchronously scrubbed and cleaned. The cleaning scraper is designed in an arc shape, so that it can better fit with the inner wall of the protective sleeve 17, avoiding dead corners and situations that cannot be cleaned during the cleaning process.

[0031] Working principle: When in use, first, when the staff needs to unload materials, when feeding powder or granular materials into the hopper 8, the second motor 601 is turned on. When one end of the output shaft of the second motor 601 rotates, the rotating rod 602 is driven to rotate. The rotation of the rotating rod 602 drives multiple stirring blades 603 to rotate, thereby crushing the solid material, reducing the difficulty of processing, and avoiding the jamming of the second screw 21 inside the barrel 13. When the rotating rod 602 rotates, it drives the first screw 604 at the bottom to rotate. The rotation of the first screw 604 realizes the rapid feeding of the feed pipe 605. The rotation of the stirring blade 603 can realize the uniform feeding of plastic particles. After unloading is completed, the first motor 4 is turned on. When it is necessary to clean the inside of the equipment , turn on the first motor 4, one end of the output shaft of the first motor 4 rotates to drive the rotating shaft 22 to rotate, the rotation of the rotating shaft 22 drives the second screw 21 to rotate, so as to convey materials, the rotating shaft 22 rotates and drives the driving gear 704 to rotate, the driving gear 704 rotates to drive the driven gear 703 on one side to rotate and revolve around the driving gear 704 inside the inner gear ring 707, the driven gear 703 rotates to drive the rotating rod 702 to rotate in the through groove 705, the rotating rod 702 rotates to rotate the cleaning scraper 701, and the bottom of the cleaning scraper 701 fits with the inner side of the protective sleeve 17, at this time, the water storage tank 3 supplies water to the inner wall of the protective sleeve 17 through the water outlet pipe 11 and the multiple water inlet holes 20, so that while the second screw 21 rotates, the inner wall of the protective sleeve 17 is synchronously scrubbed and cleaned.

[0032] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic extruder that is easy to clean and maintain, comprising a base (1), characterized in that: A first motor (4) is mounted on the top of the base (1); a rotating shaft (22) is mounted on one end of the output shaft of the first motor (4); a second screw (21) is mounted on the other end of the rotating shaft (22); a support member (14) is connected to the top of the base (1); a barrel (13) is mounted on the top of the support member (14); a plurality of grooves are formed on the inner side of the barrel (13); a mounting block (18) is slidably connected to the inner side of the groove; and a plurality of mounting blocks (18) are connected to the inner side of the plurality of mounting blocks (18). A protective sleeve (17) is provided, the inner side of the protective sleeve (17) is rotatably connected to the other end of the second screw (21), a hopper (8) is installed on the top of the barrel (13), a cover plate (9) is installed on the inner side of the hopper (8), a uniform feeding device (6) is provided on the inner side of the hopper (8), a drive box (5) is installed on the outer side of one end of the rotating shaft (22), a fixed disc (23) is connected to one side of the drive box (5), and a cleaning component (7) is provided on the inner side of the drive box (5).

2. A plastic extruder that is easy to clean and maintain according to claim 1, characterized in that: The uniform feeding device (6) comprises a second motor (601), the second motor (601) is mounted on the top of the cover plate (9) through a mounting plate, a rotating rod (602) is mounted on one end of the output shaft of the second motor (601), a plurality of stirring blades (603) are mounted on the outer side of the rotating rod (602), a feeding pipe (605) is mounted on the bottom of the hopper (8), a first screw (604) is mounted on the inner side of the feeding pipe (605), and the top end of the first screw (604) is connected to the bottom end of the rotating rod (602).

3. A plastic extruder that is easy to clean and maintain according to claim 1, characterized in that: The cleaning assembly (7) comprises a cleaning scraper (701), a fixing block (706) is connected to the inner side of the driving box (5), the bottom of the fixing block (706) is connected to an inner gear ring (707), a driving gear (704) is installed on the outer side of the rotating shaft (22), a driven gear (703) is meshed on one side of the driving gear (704), the outer side of the driven gear (703) is meshed with the inner side of the inner gear ring (707), a rotating rod (702) is installed on the inner side of the driven gear (703), the other end of the rotating rod (702) is connected to the cleaning scraper (701), the bottom of the cleaning scraper (701) is in contact with the inner wall of the protective sleeve (17), a through groove (705) is opened on the inner side of the fixing disc (23), and the outer side of the rotating rod (702) is rotatably connected to the inner side of the through groove (705).

4. A plastic extruder that is easy to clean and maintain according to claim 1, characterized in that: One end of the rotating shaft (22) is connected to the other end of the second screw (21); a water storage tank (3) is installed on the top of the base (1); the top of the water storage tank (3) is connected to a water inlet pipe (10); the other end of the water inlet pipe (10) is connected to a water delivery pipe (12); a plurality of water outlet pipes (11) are provided at the bottom of the water delivery pipe (12); a plurality of water inlet holes (20) are provided on the outside of the barrel (13); the top of the water inlet hole (20) is connected to the bottom of the water outlet pipe (11).

5. A plastic extruder that is easy to clean and maintain according to claim 1, characterized in that: A connecting piece (15) is installed at one end of the barrel (13) away from the first motor (4), and a plurality of fastening bolts (19) are installed on one side of the connecting piece (15).

6. A plastic extruder that is easy to clean and maintain according to claim 1, characterized in that: An electrical control cabinet (2) is installed on the top of the base (1), a discharge port (16) is installed at the other end of the barrel (13), and the second screw (21) is located inside the barrel (13).

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