CN222061137U

CN222061137U - Single-thread extruder with anti-blocking function

Info

Publication number: CN222061137U
Application number: CN202323569137.2U
Authority: CN
Inventors: 许爱权; 徐桂祥
Original assignee: Yunlirong Equipment Jiangsu Co ltd
Current assignee: Yunlirong Equipment Jiangsu Co ltd
Priority date: 2023-12-27
Filing date: 2023-12-27
Publication date: 2024-11-26
Anticipated expiration: 2033-12-27

Abstract

The utility model discloses a single-screw extruder with an anti-blocking function, which relates to the technical field of extruders and comprises an extruder shell, wherein a collecting box is fixedly connected to the bottom of the front side of the extruder shell, a machine head is fixedly connected to the top of the front side of the extruder shell, a cooling box is fixedly arranged at the bottom of the extruder shell, a feeding barrel is fixedly connected to the rear side of the top of the extruder shell, a through hole communicated with the inner wall of the extruder shell is formed in the bottom of the feeding barrel, a feeding hole which is internally and externally communicated is formed in the top of the feeding barrel, and an annular scraping plate is arranged on the inner wall of the feeding barrel. According to the utility model, through the joint cooperation of the hollow gear, the connecting rod, the annular scraper, the fluted disc, the material leakage hole, the collecting cavity and the discharge hole, the part, with the diameter larger than that of the discharge hole, of the tubular product extruded outwards is cut off and discharged, so that the phenomenon that the product cannot be extruded due to the internal blockage of the discharge hole is avoided.

Description

Single-thread extruder with anti-blocking function

Technical Field

The utility model relates to the technical field of extruders, in particular to a single-screw extruder with an anti-blocking function.

Background

The extruder is a device for processing materials such as plastics or rubber, and mainly depends on pressure and shearing force generated by rotation of a screw rod, so that materials can be fully plasticized and uniformly mixed, and the materials are molded through a die, for example, a JWS65/30 type single screw extruder in the prior art, raw materials in a molten state are added into the device through a charging barrel, the raw materials are extruded through the screw rod, and extruded products are extruded through a machine head after being cooled through a cooling box, so that the production of slender products such as plastic pipes or rubber pipes is completed. The following problems exist in the prior art:

The existing single-screw extruder mostly extrudes products through the through holes formed in the machine head, and because raw materials are immediately cooled after extrusion molding and are on the path of outward extrusion when not completely cooled, the raw materials which are not completely plasticized and molded are easy to be clamped by the through holes on the machine head after moving to the machine head, so that the machine head is blocked, in addition, the existing single-screw extruder is mostly used for processing plastic products or rubber products, and molten plastic and rubber are easy to be partially plasticized and stuck on the inner wall of a charging barrel after being added into the charging barrel, so that raw materials are wasted.

Disclosure of utility model

The utility model mainly aims to provide a single-screw extruder with an anti-blocking function, which can effectively solve the problems in the background.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The utility model provides a single screw extruder with anti-blocking function, includes the extruder casing, the front side bottom fixedly connected with collecting box of extruder casing, the front side top fixedly connected with aircraft nose of extruder casing, the bottom fixedly mounted of extruder casing has the cooler bin, the top rear side fixedly connected with pan feeding bucket of extruder casing, the through-hole that is linked together with the extruder casing inner wall has been seted up to the bottom of pan feeding bucket, the pan feeding hole that link up inside and outside has been seted up at the top of pan feeding bucket, the left side front end of extruder casing is provided with driving motor, driving motor's output shaft fixedly connected with gear reduction box, gear reduction box sets up the inner wall at the extruder casing, gear reduction box's rear side output fixedly connected with screw rod, the outer wall swing joint of screw rod is at the inner wall of extruder casing, the inner wall of pan feeding bucket is provided with annular scraper blade.

The technical scheme of the utility model is further improved as follows: the automatic feeding device is characterized in that a gear motor is fixedly mounted at the top of the inner wall of the feeding barrel, an output shaft of the gear motor is fixedly connected with a screw rod, the bottom end of the screw rod is movably connected to the bottom of the inner wall of the feeding barrel, a nut is connected to the outer wall of the screw rod in a threaded mode, a plurality of scraper connecting rods of an annular array are fixedly connected to the outer wall of the nut, and one end, far away from the nut, of each scraper connecting rod is fixedly connected with the inner side of each annular scraper.

The technical scheme of the utility model is further improved as follows: the utility model discloses a feeding barrel, including the inner wall bottom fixedly connected with gag lever post of feeding barrel, just the top of gag lever post and the inner wall top fixed connection of feeding barrel, spacing logical groove has been seted up to the outer wall of nut, the inner wall in spacing logical groove and the outer wall swing joint of gag lever post.

The technical scheme of the utility model is further improved as follows: eight discharge holes of the annular array are formed in the front face of the machine head, a scraper mechanism is arranged on the inner wall of each discharge hole, a fluted disc is fixedly connected to the middle of the back face of the machine head, and the back face of the fluted disc is fixedly connected with the front end of the screw rod.

The technical scheme of the utility model is further improved as follows: the scraper mechanism comprises a plurality of connecting rods in an annular array and a plurality of annular scrapers in a linear array, wherein the connecting rods are fixedly connected to the outer walls of the annular scrapers, the outer walls of the connecting rods are arc-shaped with the radian of the inner walls of the discharging holes, and the front sides of the outer walls of the connecting rods are movably connected to the inner walls of the discharging holes.

The technical scheme of the utility model is further improved as follows: the outer wall rear end fixedly connected with hollow gear of connecting rod, hollow gear's outer wall and fluted disc meshing are connected.

The technical scheme of the utility model is further improved as follows: the bottom of discharge hole has been seted up and has been leaked the material hole, annular collection chamber has been seted up to the inner wall of aircraft nose, and the top is three the bottom of leaking the material hole is linked together with collection chamber, left and right sides leak the material hole for the slant setting and keep away from the one end of discharge hole and be linked together with collection chamber, the below is three the bottom of leaking the material hole is linked together with the outside of aircraft nose.

The technical scheme of the utility model is further improved as follows: two discharge holes are formed in the bottom of the machine head, the top of each discharge hole is communicated with the bottom of the collecting cavity, and the two discharge holes are respectively formed in the left side and the right side of the discharge hole below.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. The utility model provides a single-screw extruder with an anti-blocking function, which cuts and discharges a part of an outwards extruded tubular product with the diameter larger than that of a discharge hole through the joint cooperation of a hollow gear, a connecting rod, an annular scraper, a fluted disc, a material leakage hole, a collecting cavity and the discharge hole, thereby avoiding the phenomenon that the product cannot be extruded due to the internal blocking of the discharge hole.

2. The utility model provides a single-thread extruder with an anti-blocking function, which is characterized in that a speed reducing motor, a nut, a screw rod, an annular scraping plate, a scraping plate connecting rod, a limiting rod and a limiting through groove are matched together, and residual raw materials on the inner wall of a feeding barrel are scraped downwards through the annular scraping plate, so that raw materials are prevented from being remained on the inner wall of the feeding barrel to cause raw material waste.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic perspective view of a charging basket according to the present utility model;

FIG. 3 is an enlarged schematic view of the utility model at A;

FIG. 4 is a schematic diagram of a handpiece in accordance with the present utility model;

FIG. 5 is a schematic view of a doctor mechanism according to the present utility model;

FIG. 6 is a schematic perspective cross-sectional view of a collection chamber of the present utility model.

In the figure: 1. an extruder housing; 2. a collection box; 3. a machine head; 31. a scraper mechanism; 311. a hollow gear; 312. a connecting rod; 313. an annular scraper; 32. fluted disc; 33. a discharge hole; 34. a material leakage hole; 35. a collection chamber; 36. a discharge hole; 4. a cooling box; 5. feeding a charging barrel; 51. a speed reducing motor; 52. a nut; 53. a screw rod; 54. an annular scraping plate; 55. a scraper bar; 56. a limit rod; 57. limiting through grooves; 6. a driving motor; 61. a gear reduction box; 62. and (3) a screw.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1, the utility model provides a single-screw extruder with an anti-blocking function, which comprises an extruder shell 1, wherein the extruder shell 1 is a JWS65/30 type single-screw extruder in the prior art, the bottom of the front side of the extruder shell 1 is fixedly connected with a collecting box 2, the top of the front side of the extruder shell 1 is fixedly connected with a machine head 3, the bottom of the extruder shell 1 is fixedly provided with a cooling box 4, the cooling box 4 is an ATX-03A type cold water machine in the prior art, cooling measures are provided for the inside of the extruder shell 1 through the cooling box 4, the rear side of the top of the extruder shell 1 is fixedly connected with a charging barrel 5, the bottom of the charging barrel 5 is provided with a through hole communicated with the inner wall of the extruder shell 1, the top of the charging barrel 5 is provided with a material inlet hole penetrating inside and outside, the top of the charging hole is connected with a pipeline for inputting molten raw materials outside, the front end of the left side of the extruder shell 1 is provided with a driving motor 6, an output shaft of the driving motor 6 is fixedly connected with a gear reduction box 61, the gear reduction box 61 is a DBDH-250 type speed reducer in the prior art, the gear reduction box 61 is arranged on the inner wall 62 of the extruder shell, and the inner wall 62 of the extruder shell is fixedly connected with the inner wall 62 of the extrusion screw through a flexible screw, and the extrusion screw is formed into a thin and long and thin raw material is formed by the extrusion molding.

As shown in fig. 2-3, the utility model provides a single-thread extruder with an anti-blocking function, an annular scraping plate 54 is arranged on the inner wall of a charging barrel 5, a gear motor 51 is fixedly arranged at the top of the inner wall of the charging barrel 5, the gear motor 51 is a CJY-100 gear reduction motor in the prior art, an output shaft of the gear motor 51 is fixedly connected with a screw rod 53, the bottom end of the screw rod 53 is movably connected to the bottom of the inner wall of the charging barrel 5, a nut 52 is connected with the outer wall of the screw rod 53 in a threaded manner, a plurality of scraper connecting rods 55 in an annular array are fixedly connected to the outer wall of the nut 52, one end of each scraper connecting rod 55 far away from the nut 52 is fixedly connected with the inner side of the annular scraping plate 54, a limiting rod 56 is fixedly connected to the bottom of the inner wall of the charging barrel 5, the top of the limiting rod 56 is fixedly connected with the top of the inner wall of the charging barrel 5, a limiting through groove 57 is formed in the outer wall of the nut 52, and the inner wall of the limiting through groove 57 is movably connected with the outer wall of the limiting rod 56;

The gear motor 51 drives the screw rod 53 to rotate, the screw rod 53 drives the nut 52 to move spirally, the nut 52 moves linearly through the joint cooperation of the limiting through groove 57 and the limiting rod 56, the nut 52 drives the annular scraping plate 54 to move downwards through the scraping plate connecting rod 55, the inner wall of the charging basket 5 is cleaned through the annular scraping plate 54, and therefore molten raw materials adhered to the inner wall of the charging basket 5 are scraped by the annular scraping plate 54.

As shown in fig. 4-5, the utility model provides a single-thread extruder with an anti-blocking function, the front surface of a machine head 3 is provided with eight discharge holes 33 in an annular array, the inner wall of each discharge hole 33 is provided with a scraper mechanism 31, the middle part of the back surface of the machine head 3 is fixedly connected with a fluted disc 32, the back surface of the fluted disc 32 is fixedly connected with the front end of a screw 62, the scraper mechanism 31 comprises a plurality of connecting rods 312 in an annular array and a plurality of annular scrapers 313 in a linear array, the connecting rods 312 are fixedly connected with the outer walls of the annular scrapers 313, the outer walls of the connecting rods 312 are arc-shaped with the radian identical to that of the inner walls of the discharge holes 33, the front sides of the outer walls of the connecting rods 312 are movably connected with the inner walls of the discharge holes 33, the rear end of the outer walls of the connecting rods 312 is fixedly connected with a hollow gear 311, and the outer walls of the hollow gear 311 are in meshed connection with the fluted disc 32;

The screw 62 synchronously drives the fluted disc 32 to rotate, the fluted disc 32 drives the hollow gear 311 to rotate, the annular scraper 313 is driven to rotate by the connecting rod 312, and the annular scraper 313 cuts off the part of the outer side diameter of the tubular product, which is larger than the discharge hole 33, along with the rotation along with the movement of the extruded tubular product to the discharge hole 33, so that the discharge hole 33 is prevented from being blocked.

As shown in fig. 6, the utility model provides a single-screw extruder with an anti-blocking function, the bottom of a discharge hole 33 is provided with a discharge hole 34, the inner wall of a machine head 3 is provided with an annular collecting cavity 35, the bottoms of three discharge holes 34 above are communicated with the collecting cavity 35, the discharge holes 34 on the left and right sides are obliquely arranged, one end far away from the discharge hole 33 is communicated with the collecting cavity 35, the bottoms of three discharge holes 34 below are communicated with the outside of the machine head 3, the bottom of the machine head 3 is provided with two discharge holes 36, the top of the discharge holes 36 are communicated with the bottom of the collecting cavity 35, the two discharge holes 36 are respectively arranged on the left and right sides of the lower Fang Chuliao hole 33, and scraps scraped by an annular scraper 313 drop into the inside of the collecting cavity 35 through the discharge holes 34 and are collected by the discharge holes 36, so that the scraps are discharged into a collecting box 2, and the blockage caused by the accumulation of scraps inside the discharge hole 33 is avoided.

The working principle of the single-screw extruder with the anti-blocking function is specifically described below.

As shown in fig. 1 to 6, the driving motor 6 drives the screw 62 to rotate through the gear reduction box 61, the molten raw material is extruded and molded through the rotation of the screw 62, the extruded raw material is cooled and plasticized through the cooling box 4, the screw 62 synchronously drives the fluted disc 32 to rotate, the fluted disc 32 drives the hollow gear 311 to rotate through the connecting rod 312, the annular scraper 313 drives the annular scraper 313 to rotate, the annular scraper 313 cuts off the part with the outer diameter of the tubular product larger than that of the discharge hole 33 along with the rotation along with the movement of the extruded tubular product to avoid the blockage of the discharge hole 33, the chippings cut off by the annular scraper 313 fall into the inside of the collecting cavity 35 through the material leakage hole 34, the chippings are discharged into the collecting box 2 through the discharge hole 36, the internal chippings accumulation of the discharge hole 33 is avoided to cause blockage, the decelerating motor 51 drives the screw 53 to rotate, the screw 53 drives the nut 52 to move helically, the nut 52 moves through the joint cooperation of the limiting through groove 57 and the limiting rod 56, the nut 52 moves down through the connecting rod 55 to drive the annular scraper 54, the inner wall of the annular scraper 54 to clean the material entering the charging barrel 5, and the raw material adhered to the inner wall of the charging barrel 5, and the annular scraper 54 is scraped by the annular scraper 54.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. Single screw extruder with anti-blocking function, including extruder casing (1), its characterized in that: the utility model discloses a feed screw extruder, including extruder casing (1), collecting box (2) are fixedly connected with in front side bottom of extruder casing (1), front side top fixedly connected with aircraft nose (3) of extruder casing (1), the bottom fixedly connected with cooling tank (4) of extruder casing (1), the top rear side fixedly connected with pan feeding barrel (5) of extruder casing (1), the through-hole that is linked together with extruder casing (1) inner wall is seted up to the bottom of pan feeding barrel (5), the pan feeding hole that link up inside and outside is seted up at the top of pan feeding barrel (5), the left side front end of extruder casing (1) is provided with driving motor (6), the output shaft fixedly connected with gear reduction box (61) of driving motor (6), gear reduction box (61) set up the inner wall at extruder casing (1), the rear side output fixedly connected with screw (62) of gear reduction box (61), the outer wall swing joint of screw (62) is in the inner wall of extruder casing (1), the inner wall of pan feeding barrel (5) is provided with annular scraper blade (54), the bottom of pan feeding barrel (51) is connected with in the inner wall of screw (5), the screw rod is characterized in that a nut (52) is connected to the outer wall of the screw rod (53) in a threaded manner, a plurality of scraper connecting rods (55) of an annular array are fixedly connected to the outer wall of the nut (52), one end of each scraper connecting rod (55) away from the nut (52) is fixedly connected with the inner side of each annular scraper (54), a limiting rod (56) is fixedly connected to the bottom of the inner wall of each feeding barrel (5), the top of each limiting rod (56) is fixedly connected with the top of the inner wall of each feeding barrel (5), a limiting through groove (57) is formed in the outer wall of the nut (52), and the inner wall of each limiting through groove (57) is movably connected with the outer wall of each limiting rod (56).

2. A single screw extruder with anti-jam function as claimed in claim 1, characterized in that: eight discharge holes (33) of the annular array are formed in the front face of the machine head (3), a scraper mechanism (31) is arranged on the inner wall of each discharge hole (33), a fluted disc (32) is fixedly connected to the middle of the back face of the machine head (3), and the back face of the fluted disc (32) is fixedly connected with the front end of a screw rod (62).

3. A single screw extruder with anti-jam function as claimed in claim 2, characterized in that: the scraper mechanism (31) comprises a plurality of connecting rods (312) in an annular array and a plurality of annular scrapers (313) in a linear array, the connecting rods (312) are fixedly connected to the outer wall of the annular scrapers (313), the outer wall of each connecting rod (312) is in an arc shape identical to the radian of the inner wall of each discharging hole (33), and the front side of the outer wall of each connecting rod (312) is movably connected to the inner wall of each discharging hole (33).

4. A single screw extruder with anti-jam function as claimed in claim 3, characterized in that: the rear end of the outer wall of the connecting rod (312) is fixedly connected with a hollow gear (311), and the outer wall of the hollow gear (311) is meshed with the fluted disc (32).

5. A single screw extruder with anti-jam function as claimed in claim 2, characterized in that: the bottom of discharge opening (33) has seted up leakage hole (34), annular collection chamber (35) have been seted up to the inner wall of aircraft nose (3), and the top is three the bottom of leakage hole (34) is linked together with collection chamber (35), left and right sides leakage hole (34) are the slant setting and keep away from the one end of discharge opening (33) and are linked together with collection chamber (35), and the below is three the bottom of leakage hole (34) is linked together with the outside of aircraft nose (3).

6. A single screw extruder with anti-jam function as in claim 5, wherein: two discharge holes (36) are formed in the bottom of the machine head (3), the top of each discharge hole (36) is communicated with the bottom of the corresponding collecting cavity (35), and the two discharge holes (36) are respectively formed in the left side and the right side of the corresponding discharge hole (33).