Screw extruder for producing high-strength polyester filament non-woven fabric

Abstract

The utility model relates to a screw extruder, belongs to the technical field of screw extruders, and in particular relates to a screw extruder for producing high-strength polyester filament non-woven fabric, which comprises a fixed frame, a bottom plate, a bearing block, an extrusion barrel and an anti-blocking component, the anti-blocking assembly comprises a discharging hopper, a rotating rod, a bevel gear set, a fixing plate, a rotating shaft, a first scraping plate, a second scraping plate, a reciprocating lead screw, a limiting rod, a reciprocating block and a conical block. Through the arrangement of the anti-blocking assembly, the possibility that the blanking hopper is blocked due to the fact that raw materials attached to the inner wall of the blanking hopper are not cleaned in time during blanking of the blanking hopper can be avoided, the blanking effect is improved, and the problem that liquid or viscous polyester materials can be attached to the inner wall of the blanking hopper during blanking and cannot be cleaned in time is solved. The polyester material cannot completely fall off through vibration, the polyester material attached to the inner wall is solidified after a long time, and if the polyester material is not cleaned in time, the blanking hopper is still blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of screw extruders, in particular to a screw extruder for producing high-strength polyester filament non-woven fabrics. Background Art

[0002] The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and the rare multi-screw extruders and screwless extruders. Screw extruders are one of the commonly used production equipment for high-strength polyester filament non-woven fabrics.

[0003] In the prior art, a Chinese patent with publication number CN210501319U discloses a screw extruder for producing high-strength polyester filament nonwoven fabric for tire base cloth, including a frame, a control panel is installed on the front side of the frame, and a motor is fixedly installed at one side of the top of the frame, a reducer is arranged on one side of the motor, a transmission box is installed on one side of the reducer, a feed pipe is fixedly installed on one side of the transmission box, and a feeding mechanism is arranged on the top of the feed pipe. The utility model has a scientific and reasonable structure and is easy to operate. Through the operation of the electric telescopic rod, the automatic opening and closing of the barrel cover can be realized, which provides convenience for the staff's feeding work. At the same time, through the vibration motor, the blocking phenomenon of the lower hopper can be prevented to ensure the normal feeding work.

[0004] However, the above patent has some shortcomings. In actual use, since the polyester filaments are in the form of liquid or viscous polyester materials before extrusion, when discharging the materials, only the vibration motor is used to vibrate the hopper to avoid blockage. After long-term use, the liquid or viscous polyester materials will adhere to the inner wall of the hopper when discharging the materials. The vibration cannot completely make them fall off. Over time, the polyester materials attached to the inner wall will solidify. If they are not cleaned in time, the hopper will still be blocked. Therefore, a screw extruder for the production of high-strength polyester filament non-woven fabrics is proposed to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a screw extruder for the production of high-strength polyester filament non-woven fabrics. By setting up an anti-blocking component, the possibility of clogging the hopper due to raw materials attached to the inner wall of the hopper not being cleaned in time can be avoided when the hopper is unloading, thereby improving the unloading effect.

[0006] The technical solution to achieve the purpose of the utility model is: a screw extruder for producing high-strength polyester filament nonwoven fabrics, including a fixed frame, the upper surface of the fixed frame is fixedly connected to a bottom plate, the upper surface of the bottom plate is fixedly connected to a bearing block, the upper surface of the bearing block is installed with an extrusion barrel, and the surface of the extrusion barrel is provided with an anti-blocking component;

[0007] The anti-blocking component includes a lower hopper fixedly connected to the surface of the extruder cylinder, the inner wall of the lower hopper is rotatably connected to a rotating rod, the surface of the rotating rod is sleeved with a bevel gear set, the inner wall of the lower hopper is fixedly connected to a fixing plate, the upper surface of the fixing plate is penetrated with a rotating hole, the inner wall of the rotating hole is rotatably connected with a rotating shaft, the surface of the rotating shaft is respectively sleeved with a scraper 1 and a scraper 2, the scraper 1 and the scraper 2 are respectively fitted with the inner wall of the lower hopper on one side away from the rotating shaft, the bottom end of the rotating shaft is respectively installed with a reciprocating screw and a limiting rod through a follower plate, the surface of the reciprocating screw is threadedly connected with a reciprocating block, the upper surface of the reciprocating block is penetrated with a through hole, the inner wall of the through hole is slidably connected to the surface of the limiting rod, and the lower surface of the reciprocating block is fixedly connected with a plurality of conical blocks.

[0008] In some embodiments, the upper surface of the lower hopper is rotatably connected to a barrel cover, and the surface of the lower hopper is fixedly connected to an electric push rod via a mounting plate, and the output end of the electric push rod is connected to the barrel cover.

[0009] In some embodiments, a drive box is fixedly connected to the upper surface of the base plate, a circular groove is provided on the inner wall of one side of the drive box, a gear disk is rotatably connected to the inner wall of the circular groove, a circular hole is provided on one side of the extrusion barrel, a screw rod 1 is rotatably connected to the inner wall of the extrusion barrel, and a gear 1 is sleeved on the surface of the screw rod 1.

[0010] In some embodiments, a connecting plate is sleeved on the surface of the screw rod one, and a gear two is rotatably connected to one side of the connecting plate. The gear two is respectively meshed with the toothed disk and the gear one, and a screw rod two is installed on one side of the gear two.

[0011] In some embodiments, a motor is mounted on the upper surface of the base plate via a rubber seat, one end of the screw rod is coaxially mounted with the output end of the motor, a driving device is mounted on the output end of the motor, and the rotating rod is transmission-connected to the motor via the driving device.

[0012] In some embodiments, a controller is mounted on one side of the base plate.

[0013] Compared with the prior art, the present invention has the following significant advantages:

[0014] The utility model can realize the rotation of screw one through the drive of the motor, and then realize that the gear one drives the gear two to move on the toothed disk, and realizes the rotational movement of screw two in the extruder barrel. The driving device can link the rotating rod and the motor, and when unloading, the bevel gear set can be used to drive the rotation of the rotating shaft, so that the scraper one and the scraper two can scrape the inner wall of the unloading hopper at the same time, so as to prevent the raw materials from adhering to the inner wall of the unloading hopper and causing accumulation and blockage. At the same time, the rotating rod drives the rotation of the reciprocating screw to realize the reciprocating lifting of the reciprocating block, and drives the conical block to reciprocate and continuously pound the unloading port of the unloading hopper up and down, so as to achieve a better anti-blocking effect.

[0015] The invention solves the problem that after long-term use, liquid or viscous polyester material will adhere to the inner wall of the hopper when discharging, and vibration cannot completely make it fall down. The polyester material attached to the inner wall will solidify over a long period of time, and the hopper will still be blocked if it is not cleaned in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of a three-dimensional structure provided in one embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram provided in one embodiment of the utility model;

[0019] Figure 3 It is a schematic structural diagram of a twin-screw driving device provided in one embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of an anti-blocking component provided in one embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Fixed frame; 2. Bottom plate; 3. Load-bearing block; 4. Extrusion barrel; 5. Anti-blocking assembly; 501. Lower hopper; 502. Rotating rod; 503. Bevel gear set; 504. Rotating shaft; 505. Scraper 1; 506. Fixed plate; 507. Scraper 2; 508. Reciprocating screw; 509. Reciprocating block; 510. Limit rod; 511. Conical block; 6. Drive box; 7. Controller; 8. Motor; 9. Drive device; 10. Circular groove; 11. Toothed disc; 12. Gear 1; 13. Screw 1; 14. Gear 2; 15. Screw 2; 16. Connecting plate; 17. Barrel cover; 18. Electric push rod. DETAILED DESCRIPTION

[0023] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. 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.

[0024] The utility model provides a screw extruder for producing high-strength polyester filament nonwoven fabrics through improvement. The technical solution of the utility model is:

[0025] like Figure 1 and 4 As shown, a screw extruder for producing high-strength polyester filament nonwoven fabrics comprises a fixed frame 1, a bottom plate 2 is fixedly connected to the upper surface of the fixed frame 1, a bearing block 3 is fixedly connected to the upper surface of the bottom plate 2, an extrusion barrel 4 is installed on the upper surface of the bearing block 3, and an anti-blocking component 5 is arranged on the surface of the extrusion barrel 4;

[0026] The anti-blocking component 5 includes a lower hopper 501 fixedly connected to the surface of the extruder barrel 4, the inner wall of the lower hopper 501 is rotatably connected to a rotating rod 502, the surface of the rotating rod 502 is sleeved with a bevel gear set 503, the bevel gear set 503 is composed of two mutually meshing bevel gear sets 503, the two bevel gears link the rotating rod 502 and the rotating shaft 504 to achieve synchronous drive, the inner wall of the lower hopper 501 is fixedly connected to a fixed plate 506, the fixed plate 506 is fixed to the inside of the lower hopper 501 through a plurality of round rods, and can provide a support effect for the rotating shaft 504 The upper surface of the fixed plate 506 is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected with a rotating shaft 504. The surface of the rotating shaft 504 is respectively sleeved with a scraper 1 505 and a scraper 2 507. The scraper 1 505 and the scraper 2 507 are both made of acrylic plastic material, which is light in texture and smooth in surface, and is not easy to adhere to raw materials. The scraper 1 505 and the scraper 2 507 are respectively fitted with the inner wall of the lower hopper 501 on the side away from the rotating shaft 504. There are three scrapers 1 505, and the scrapers 1 505 and the scraper 2 507 are fitted with the inner wall of the lower hopper 501. , which can improve the scraping effect. The bottom end of the rotating shaft 504 is respectively installed with a reciprocating screw 508 and a limit rod 510 through a follower plate. The reciprocating screw is a prior art, which is a structure that keeps the reciprocating block 509 in reciprocating motion without changing the direction of the main shaft. The limit rod 510 can limit the reciprocating block 509. The surface of the reciprocating screw 508 is threadedly connected with the reciprocating block 509. The reciprocating screw 508 and the reciprocating block 509 are both prior art. A guide block is arranged inside the reciprocating block 509, which mainly limits the range of motion of the ball and prevents it from The function of deviation from the track is that some small parts are installed on the guide plate or the guide disk, and together with the guide plate, they constitute the return guide device of the reciprocating screw 508, ensuring that the reciprocating screw 508 can reciprocate smoothly. A through hole is penetrated through the upper surface of the reciprocating block 509, and the inner wall of the through hole is slidably connected to the surface of the limit rod 510. The lower surface of the reciprocating block 509 is fixedly connected with multiple conical blocks 511. The conical blocks 511 are set with pointed tops, which can reduce resistance when rising and avoid lifting the raw materials when rising.

[0027] like Figure 2 As shown, in one embodiment, the upper surface of the lower hopper 501 is rotatably connected to the barrel cover 17, and the surface of the lower hopper 501 is fixedly connected to an electric push rod 18 via a mounting plate, and the output end of the electric push rod 18 is connected to the barrel cover 17.

[0028] like Figure 3As shown, in one embodiment, the upper surface of the bottom plate 2 is fixedly connected to a driving box 6, a circular groove 10 is provided on the inner wall of one side of the driving box 6, a toothed disc 11 is rotatably connected to the inner wall of the circular groove 10, a circular hole is provided on one side of the extrusion barrel 4, and the circular hole can prevent the second screw 15 from being interfered with during movement, the inner wall of the extrusion barrel 4 is rotatably connected to a screw 13, and a gear 12 is sleeved and installed on the surface of the screw 13;

[0029] A connecting plate 16 is sleeved on the surface of the screw rod 13, and the connecting plate 16 can fix and support the gear 2 14. One side of the connecting plate 16 is rotatably connected to the gear 2 14, and the gear 2 14 is respectively meshed with the toothed disc 11 and the gear 1 12. A screw rod 2 15 is installed on one side of the gear 2 14.

[0030] like Figure 1 and 2 As shown, in one embodiment, a motor 8 is installed on the upper surface of the bottom plate 2 through a rubber seat. The rubber seat can support the motor 8 while utilizing the energy absorption property of the rubber to absorb the vibration of the motor 8 when it is working. One end of the screw rod 13 is coaxially installed with the output end of the motor 8. The output end of the motor 8 is installed with a driving device 9. The rotating rod 502 is connected to the motor 8 through the driving device 9. The driving device 9 is composed of two pulleys and a belt, which can make the rotating rod 502 rotate synchronously with the output shaft of the motor 8 to achieve a linkage effect.

[0031] A controller 7 is installed on one side of the base plate 2 , and the motor 8 and the electric push rod 18 can be controlled by the controller 7 .

[0032] The specific working method is as follows: when the screw extruder for producing high-strength polyester filament nonwoven fabric is used, first, the electric push rod 18 is started to work, the barrel cover 17 is opened, and the material is put into the lower hopper 501. The electric push rod 18 is set to work, and the barrel cover 17 can be automatically opened and closed, which provides convenience for the staff's feeding work. Then, the motor 8 is started by the controller 7. The rotation of the screw 13 can be realized through the drive of the motor 8, and then the gear 12 drives the gear 2 14 to move on the toothed disc 11, so that the screw 2 15 is extruded. The cylinder 4 rotates internally, and the driving device 9 links the rotating rod 502 with the motor 8. When unloading, the bevel gear set 503 can drive the rotating shaft 504 to rotate, so that the scraper 1 505 and the scraper 2 507 can scrape the inner wall of the unloading hopper 501 at the same time, so as to prevent the raw materials from adhering to the inner wall of the unloading hopper 501 and causing accumulation and blockage. At the same time, the rotating rod 502 drives the reciprocating screw 508 to rotate, so as to realize the reciprocating lifting of the reciprocating block 509, and drive the conical block 511 to reciprocate and continuously pound the unloading port of the unloading hopper 501 up and down, so as to achieve a better anti-blocking effect.

[0033] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A screw extruder for producing high-strength polyester filament nonwoven fabrics, comprising a fixed frame (1), characterized in that: The upper surface of the fixing frame (1) is fixedly connected to a bottom plate (2), the upper surface of the bottom plate (2) is fixedly connected to a bearing block (3), the upper surface of the bearing block (3) is mounted with an extrusion cylinder (4), and the surface of the extrusion cylinder (4) is provided with an anti-blocking component (5); The anti-blocking assembly (5) comprises a lower hopper (501) fixedly connected to the surface of the extruder barrel (4); the inner wall of the lower hopper (501) is rotatably connected to a rotating rod (502); the surface of the rotating rod (502) is sleeved with a bevel gear set (503); the inner wall of the lower hopper (501) is fixedly connected to a fixing plate (506); a rotating hole is formed through the upper surface of the fixing plate (506); the inner wall of the rotating hole is rotatably connected to a rotating shaft (504); the surface of the rotating shaft (504) is sleeved with a scraper plate 1 (505) and a scraper plate 2 (507) respectively. The scraper blade 1 (505) and the scraper blade 2 (507) are respectively fitted with the inner wall of the lower hopper (501) on one side away from the rotating shaft (504); the bottom end of the rotating shaft (504) is respectively installed with a reciprocating screw (508) and a limit rod (510) through a follower plate; the surface of the reciprocating screw (508) is threadedly connected with a reciprocating block (509); a through hole is penetrated through the upper surface of the reciprocating block (509); the inner wall of the through hole is slidably connected to the surface of the limit rod (510); and a plurality of conical blocks (511) are fixedly connected to the lower surface of the reciprocating block (509).

2. The screw extruder for producing high-strength polyester filament nonwoven fabric according to claim 1, characterized in that: The upper surface of the lower hopper (501) is rotatably connected to a barrel cover (17), and the surface of the lower hopper (501) is fixedly connected to an electric push rod (18) via a mounting plate, and the output end of the electric push rod (18) is connected to the barrel cover (17).

3. The screw extruder for producing high-strength polyester filament nonwoven fabric according to claim 1, characterized in that: A driving box (6) is fixedly connected to the upper surface of the bottom plate (2); a circular groove (10) is provided on the inner wall of one side of the driving box (6); a toothed disc (11) is rotatably connected to the inner wall of the circular groove (10); a circular hole is provided on one side of the extrusion cylinder (4); a screw rod (13) is rotatably connected to the inner wall of the extrusion cylinder (4); a gear rod (12) is sleeved and mounted on the surface of the screw rod (13).

4. The screw extruder for producing high-strength polyester filament nonwoven fabric according to claim 3, characterized in that: A connecting plate (16) is sleeved and installed on the surface of the screw rod 1 (13); one side of the connecting plate (16) is rotatably connected to a gear 2 (14); the gear 2 (14) is respectively meshed with the toothed disc (11) and the gear 1 (12); and one side of the gear 2 (14) is installed with a screw rod 2 (15).

5. The screw extruder for producing high-strength polyester filament nonwoven fabric according to claim 3, characterized in that: A motor (8) is mounted on the upper surface of the base plate (2) via a rubber seat, one end of the screw rod (13) is coaxially mounted with the output end of the motor (8), a driving device (9) is mounted on the output end of the motor (8), and the rotating rod (502) is transmission-connected to the motor (8) via the driving device (9).

6. The screw extruder for producing high-strength polyester filament nonwoven fabric according to claim 5, characterized in that: A controller (7) is installed on one side of the base plate (2).

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