CN210883550U

CN210883550U - Hopper and extruder

Info

Publication number: CN210883550U
Application number: CN201920856042.3U
Authority: CN
Inventors: 张伟明; 邝清林; 冯绮琳; 李保银; 陈春铭; 陈立彬
Original assignee: Siiico Technology Co ltd
Current assignee: Siiico Technology Co ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-06-30
Anticipated expiration: 2029-06-06

Abstract

The utility model discloses a hopper and an extruder, wherein, the hopper comprises a shell provided with an upper opening and a lower opening, and a first annular connecting piece covered on the lower opening of the shell, and the first annular connecting piece is fixedly connected with the shell; the first annular connecting piece extends along the up-down direction, a first fixing part extending outwards is arranged on the outer wall surface of the first annular connecting piece, and a shielding ring extending downwards is arranged on the lower end surface of the first annular connecting piece. The first fixing portion enables the hopper to be connected with the extruder. The shielding ring can extend into the extruder at the position shielding the connecting position of the hopper and the extruder, shield the gap connecting the hopper and the extruder, and reduce material leakage. The utility model is used for the plastic molding.

Description

Hopper and extruder

Technical Field

The utility model relates to a plastic molding field, in particular to extrusion moulding equipment.

Background

An extruder is commonly used for forming plastics, and a driving device of the extruder is generally connected with an extrusion rod through a gearbox, so that the extrusion rod is driven to rotate in a barrel to fully extrude the mixed materials and extrude the materials into plastic products with specific shapes, such as pipes and plates. The existing extruder is shown in the publication No. CN207762239U and the publication No. CN108437393A, wherein during the process of the mixed materials entering the charging barrel through the hopper, part of the fine materials and powder usually leak outwards through the connection between the hopper and the charging barrel, so that the extruder and the working environment are not clean, and the waste of the materials is also caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: a hopper for reducing leakage of material is provided.

The utility model provides a solution of its technical problem is:

a hopper comprises a shell provided with an upper opening and a lower opening, and a first annular connecting piece covered on the lower opening of the shell, wherein the first annular connecting piece is fixedly connected with the shell; the first annular connecting piece extends along the up-down direction, a first fixing part extending outwards is arranged on the outer wall surface of the first annular connecting piece, and a shielding ring extending downwards is arranged on the lower end surface of the first annular connecting piece. The first fixing portion enables the hopper to be connected with the extruder. The shielding ring can extend into the extruder at the position shielding the connecting position of the hopper and the extruder, shield the gap connecting the hopper and the extruder, and reduce material leakage.

As a further improvement of the technical scheme, the upper end of the shielding ring is large, and the lower end of the shielding ring is small. The upper end of the shielding ring is large, and the lower end of the shielding ring is small, so that the shielding ring can be used for wedging, the shielding ring can be effectively and tightly connected with the extruder, and material leakage is effectively reduced.

As a further improvement of the above technical solution, at least one connecting groove is formed in an outer wall surface of the blocking ring, and the connecting groove extends downward to a lower end surface of the first annular connecting member. The connecting groove extends downwards and can be used for guiding in the up-and-down direction, circumferential deflection of the hopper during installation is avoided, and therefore the first fixed connecting portion can be aligned to the connecting position of the extruder.

As a further improvement of the above technical solution, an outer wall surface of the shielding ring is a conical surface. The outer wall surface of the shielding ring is a conical surface, so that the shape that the upper end of the shielding ring is large and the lower end of the shielding ring is small is realized, and the shielding ring with the conical outer wall surface is convenient to process and manufacture.

As a further improvement of the technical scheme, the first annular connecting piece, the first fixing part and the shielding ring are integrally formed. First annular connecting piece, first fixed part, shelter from ring integrated into one piece have reduced the interconnect of spare part, have avoided the possibility that connection gap appears for the hopper can reduce the material better and leak.

An extruder comprises the hopper and a charging barrel extending along the transverse direction, wherein a feeding hole is formed in the charging barrel, a second annular connecting piece is arranged on the feeding hole, a second fixing part extending outwards is arranged on the outer wall surface of the second annular connecting piece, and the second fixing part is detachably and fixedly connected with the first fixing part; the outer wall surface of the shielding ring is abutted against the inner annular surface of the second annular connecting piece. The feeding channel that hopper, feed inlet formed, shield the outer wall of ring with the interior anchor ring butt of second annular connecting piece has avoided the joint gap of first fixed part and second fixed part directly to be connected with feeding channel, effectively reduces the material and leaks.

As a further improvement of the above technical solution, at least one connecting protrusion is arranged at the upper end of the inner annular surface of the second annular connecting piece, and the connecting protrusions are connected with the connecting grooves in a one-to-one manner; the connecting protrusion extends along the vertical direction, and the side wall surface of the connecting protrusion is abutted to the side wall surface of the connecting groove. The connecting protrusion and the connecting groove can avoid circumferential deflection of the hopper, so that the first fixing part and the second fixing part are effectively kept in circumferential alignment.

As a further improvement of the above technical solution, the extruder further comprises an annular elastic member disposed in the second annular connecting member, the annular elastic member having upper and lower ends, the upper end of the annular elastic member being large and the lower end thereof being small; the upper end of the annular elastic part is abutted to the lower end face of the shielding ring, and the lower end of the annular elastic part is fixedly connected with the inner annular face of the second annular connecting piece. Due to manufacturing errors of the outer wall surface of the shielding ring and the inner ring surface of the second annular connecting piece, a fit clearance exists between the outer wall surface of the shielding ring and the inner ring surface of the second annular connecting piece. The annular elastic piece can avoid the direct communication of the feeding channel formed by the matching gap and the hopper and the feeding hole, thereby better reducing the leakage of materials.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

FIG. 1 is a schematic structural view of an embodiment of a hopper according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at position A;

FIG. 3 is a schematic structural diagram of an embodiment of the extruder of the present invention;

fig. 4 is a partially enlarged view of a position B in fig. 3.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. The utility model provides an each technical feature can the interactive combination under the prerequisite of conflict each other.

Referring to fig. 1 to 4, this is an embodiment of the hopper and extruder of the present invention, specifically:

a hopper comprises a shell 100 provided with an upper opening and a lower opening, and a first annular connecting piece 210 covering the lower opening of the shell 100, wherein the first annular connecting piece 210 is fixedly connected with the shell 100; the shell 100 is made of sheet metal and is funnel-shaped; the housing 100 is fixedly connected to the first annular connecting member 210 by circumferential welding. The first annular connecting member 210 extends in the vertical direction, the outer wall surface of the first annular connecting member 210 is provided with a first fixing portion 220 extending outwards, the lower end surface of the first annular connecting member 210 is provided with a shielding ring 230 extending downwards, and the first annular connecting member 210, the first fixing portion 220 and the shielding ring 230 are integrally formed. The shielding ring 230 has a large upper end and a small lower end, the outer wall surface of the shielding ring 230 is a conical surface, two connecting grooves 231 are formed in the outer wall surface of the shielding ring 230, and the connecting grooves 231 extend downward to the lower end surface of the connecting section.

An extruder comprises the hopper and a charging barrel extending along the transverse direction, wherein a feeding hole is formed in the charging barrel, a second annular connecting piece 310 is arranged on the feeding hole, a second fixing part 320 extending outwards is arranged on the outer wall surface of the second annular connecting piece 310, and the second fixing part 320 is detachably and fixedly connected with a first fixing part 220; in this embodiment, the second fixing portion 320 and the first fixing portion 220 are both disc-shaped and have through holes extending in the vertical direction, and the detachable fixing connection between the two portions is realized by bolts. The outer wall surface of the shield ring 230 abuts against the inner annular surface of the second annular connecting member 310.

The upper end of the inner ring surface of the second annular connecting piece 310 is provided with two connecting bulges 311, and the connecting bulges 311 are connected with the connecting grooves 231 in a one-to-one manner; the coupling projection 311 extends in the vertical direction, and a side wall surface of the coupling projection 311 abuts against a side wall surface of the coupling groove 231.

The extruder further includes an annular elastic member 330 disposed in the second annular connecting member 310, the annular elastic member 330 having upper and lower ends, the upper end of the annular elastic member 330 being large and the lower end being small; the upper end of the annular elastic member 330 abuts against the lower end face of the shielding ring 230, the annular elastic member 330 is a rotating member with a rotating shaft arranged in the vertical direction, and the whole circle of the upper end of the annular elastic member 330 abuts against the lower end face of the shielding ring 230; the lower end of the annular elastic member 330 is fixedly connected to the inner annular surface of the second annular connecting member 310, and the fixed connection can be achieved by welding the annular elastic member circumferentially for a complete circle. In order to reduce the design, mold opening, and manufacturing costs, the annular elastic member 330 may use a disc spring.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. A hopper, characterized by: the connecting device comprises a shell (100) provided with an upper opening and a lower opening, and a first annular connecting piece (210) covering the lower opening of the shell (100), wherein the first annular connecting piece (210) is fixedly connected with the shell (100); the first annular connecting piece (210) extends along the up-down direction, the outer wall surface of the first annular connecting piece (210) is provided with a first fixing part (220) extending outwards, and the lower end surface of the first annular connecting piece (210) is provided with a shielding ring (230) extending downwards.

2. A hopper according to claim 1, wherein: the shielding ring (230) has a large upper end and a small lower end.

3. A hopper according to claim 2, wherein: the outer wall surface of the shielding ring (230) is provided with at least one connecting groove (231), and the connecting groove (231) extends downwards to the lower end surface of the first annular connecting piece (210).

4. A hopper according to claim 3, wherein: the outer wall surface of the shielding ring (230) is a conical surface.

5. A hopper according to claim 4, wherein: the first annular connecting piece (210), the first fixing part (220) and the shielding ring (230) are integrally formed.

6. An extruder comprising the hopper of claim 4 or 5, a barrel extending in a transverse direction, wherein: the charging barrel is provided with a feeding hole, the feeding hole is provided with a second annular connecting piece (310), the outer wall surface of the second annular connecting piece (310) is provided with a second fixing part (320) extending outwards, and the second fixing part (320) is detachably and fixedly connected with the first fixing part (220); the outer wall surface of the shield ring (230) abuts against the inner annular surface of the second annular connecting member (310).

7. An extruder according to claim 6, wherein: the upper end of the inner ring surface of the second annular connecting piece (310) is provided with at least one connecting bulge (311), and the connecting bulge (311) is connected with the connecting groove (231) in a one-to-one manner; the connecting protrusion (311) extends along the vertical direction, and the side wall surface of the connecting protrusion (311) is abutted to the side wall surface of the connecting groove (231).

8. An extruder according to claim 7, wherein: the annular elastic piece (330) is arranged in the second annular connecting piece (310), the annular elastic piece (330) is provided with an upper end and a lower end, and the upper end of the annular elastic piece (330) is large while the lower end is small; the upper end of the annular elastic part (330) is abutted against the lower end face of the shielding ring (230), and the lower end of the annular elastic part (330) is fixedly connected with the inner annular face of the second annular connecting part (310).