CN112848159A

CN112848159A - Plasticizing device and injection molding machine

Info

Publication number: CN112848159A
Application number: CN202011548344.8A
Authority: CN
Inventors: 韦家晟; 赵永政; 莫玉麟; 郭少炎; 卢全武; 刘世基
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-05-28

Abstract

The invention provides a plasticizing device and an injection molding machine, wherein the plasticizing device is used for melting plastic materials and comprises: the charging barrel is provided with an inner cavity extending along a preset direction; the screw is arranged in the charging barrel and extends along a preset direction; the rotating shaft is arranged at one end of the screw rod and is in transmission connection with the screw rod so as to drive the screw rod to rotate through the rotating shaft; the adjusting seat is arranged on the rotating shaft; the adjusting seat is provided with a through hole, and the screw rod is arranged in the through hole in a penetrating way and is in clearance fit with the inner wall of the through hole; the adjusting seat is provided with a plurality of first threaded holes which are arranged at intervals along the circumferential direction of the through hole, and each first threaded hole extends to the inner wall of the through hole; the adjusting pieces are provided with external threads and are in one-to-one correspondence to the first threaded holes through threaded fit; the end parts of the adjusting pieces, which are positioned in the through holes, are abutted to the screw rod. The plasticizing device solves the problem that a screw of the plasticizing device in the prior art is inconvenient to adjust.

Description

Plasticizing device and injection molding machine

Technical Field

The invention relates to the field of injection molding machines, in particular to a plasticizing device and an injection molding machine.

Background

The plasticizing device is a key component of an injection molding machine and has the function of melting the plastic material in the barrel through the rotation of the screw.

In the prior art, due to the existence of processing and assembling errors, the screw of the plasticizing device is usually not centered with the charging barrel, that is, when the plasticizing device is used, the screw is usually not positioned in the center of the charging barrel. Thus, not only the friction between the barrel and the screw is increased to destroy the screw, but also the plasticizing effect is seriously affected. The screw rod in the prior art is difficult to adjust after being installed.

Disclosure of Invention

The invention mainly aims to provide a plasticizing device and an injection molding machine, and aims to solve the problem that the position of a screw of the plasticizing device in the prior art is inconvenient to adjust.

In order to achieve the above object, according to one aspect of the present invention, there is provided a plasticizing device for melting a plastic material, the plasticizing device including: the charging barrel is provided with an inner cavity extending along a preset direction; the screw is arranged in the charging barrel and extends along a preset direction; the rotating shaft is arranged at one end of the screw rod and is in transmission connection with the screw rod so as to drive the screw rod to rotate through the rotating shaft; the adjusting seat is arranged on the rotating shaft; the adjusting seat is provided with a through hole, and the screw rod is arranged in the through hole in a penetrating way and is in clearance fit with the inner wall of the through hole; the adjusting seat is provided with a plurality of first threaded holes which are arranged at intervals along the circumferential direction of the through hole, and each first threaded hole extends to the inner wall of the through hole; the adjusting pieces are provided with external threads and are in one-to-one correspondence to the first threaded holes through threaded fit; the end parts of the adjusting pieces, which are positioned in the through holes, are abutted to the screw rod.

Furthermore, the plasticizing device comprises a plurality of locking pieces, and each locking piece is provided with a second threaded port; the locking pieces are matched with the adjusting pieces in a one-to-one correspondence mode through threads; the locking pieces are in a locking state and an unlocking state, and when the locking pieces are in the locking state, the locking pieces are abutted to the adjusting seat; when each adjusting piece is in an unlocking state, the locking piece is separated from the adjusting seat.

Furthermore, the adjusting seat is formed by splicing a plurality of sections, and the sections are sequentially arranged along the circumferential direction of the through hole; the inner wall of through-hole is equipped with first joint cooperation portion, and the outer wall of screw rod is equipped with second joint cooperation portion, first joint cooperation portion and the cooperation of second joint cooperation portion joint to through first joint cooperation portion and second joint cooperation portion restriction screw rod along its axial displacement.

Furthermore, the adjusting seat is formed by splicing two sections, wherein the two sections are semicircular structures; each subsection is provided with a plurality of first threaded holes.

Further, first joint cooperation portion is the annular flange, and second joint cooperation portion is the annular groove.

Furthermore, a plurality of connecting holes are formed in the adjusting seat and are arranged at intervals along the circumferential direction of the through hole; the adjusting seat is connected with the rotating shaft through a connecting piece arranged in the connecting hole in a penetrating way.

Further, the plasticizing device includes: the hopper seat is provided with a mounting hole extending along a preset direction, and the charging barrel penetrates through the mounting hole; the first end of the hopper seat is clamped and matched with the charging barrel; the fixing piece is arranged on one side of the hopper seat close to the rotating shaft, the fixing piece is in threaded connection and matching with the charging barrel, and the fixing piece is abutted against the second end of the hopper seat; the first end of the hopper seat and the second end of the hopper seat are opposite ends of the hopper seat along the preset direction.

Furthermore, a first pin hole is formed in the hopper seat, and a second pin hole is formed in the charging barrel; the plasticizing device comprises a positioning pin, and the positioning pin penetrates through the first pin hole and the second pin hole to limit the charging barrel to move along a preset direction relative to the hopper seat through the positioning pin.

Furthermore, the plasticizing device comprises a base and a sliding seat, and the sliding seat is slidably arranged on the base along a preset direction; the rotating shaft is mounted on the sliding seat.

According to another aspect of the invention, an injection molding machine is provided, which comprises the plasticizing device.

The plasticizing device applying the technical scheme of the invention is used for melting plastic materials, and comprises: the charging barrel is provided with an inner cavity extending along a preset direction; the screw is arranged in the charging barrel and extends along a preset direction; the rotating shaft is arranged at one end of the screw rod and is in transmission connection with the screw rod so as to drive the screw rod to rotate through the rotating shaft; the adjusting seat is arranged on the rotating shaft; the adjusting seat is provided with a through hole, and the screw rod is arranged in the through hole in a penetrating way and is in clearance fit with the inner wall of the through hole; the adjusting seat is provided with a plurality of first threaded holes which are arranged at intervals along the circumferential direction of the through hole, and each first threaded hole extends to the inner wall of the through hole; the adjusting pieces are provided with external threads and are in one-to-one correspondence to the first threaded holes through threaded fit; the end parts of the adjusting pieces, which are positioned in the through holes, are abutted to the screw rod. Through adopting this kind of structural design, the one end of a plurality of regulating parts all stretches into inside the through-hole and with the screw rod butt to play the effect of location and support to the screw rod. When the screw rod and the charging barrel are not centered because of machining errors, assembly errors and the like, the length of each adjusting piece extending into the through hole can be adjusted by rotating the plurality of adjusting pieces, so that the supporting effect on the screw rod is changed, and the screw rod is positioned at the center of the charging barrel. Like this, can play more effectual regulation effect to the screw rod of plasticizing device, solve the problem of the screw rod regulation difficulty of plasticizing device among the prior art.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a plasticizing device according to the present invention;

FIG. 2 shows a schematic cross-sectional structural view of an embodiment of a plasticizing device according to the present disclosure;

FIG. 3 shows an enlarged schematic view of a partial region of the embodiment of the plasticizing device in FIG. 2;

fig. 4 shows a schematic structural view of an adjusting seat of an embodiment of the plasticizing device according to the invention.

Wherein the figures include the following reference numerals:

1. a charging barrel; 2. a screw; 3. a rotating shaft; 4. an adjusting seat; 41. a through hole; 42. a first threaded hole; 43. segmenting; 44. a first snap fit portion; 45. connecting holes; 5. an adjustment member; 6. a locking member; 7. a connecting member; 8. a hopper base; 81. a feed inlet; 9. a fixing member; 10. positioning pins; 11. a base; 12. a sliding seat; 13. a pulley.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 4, there is provided a plasticizing apparatus for melting a plastic material, the plasticizing apparatus including: the charging barrel comprises a charging barrel 1, wherein the charging barrel 1 is provided with an inner cavity extending along a preset direction; the screw rod 2 is arranged in the charging barrel 1 and extends along a preset direction; the rotating shaft 3 is arranged at one end of the screw rod 2 and is in transmission connection with the screw rod 2 so as to drive the screw rod 2 to rotate through the rotating shaft 3; the adjusting seat 4 is mounted on the rotating shaft 3; the adjusting seat 4 is provided with a through hole 41, and the screw rod 2 is arranged in the through hole 41 in a penetrating way and is in clearance fit with the inner wall of the through hole 41; a plurality of first threaded holes 42 are formed in the adjusting seat 4, the plurality of first threaded holes 42 are arranged at intervals along the circumferential direction of the through hole 41, and each first threaded hole 42 extends to the inner wall of the through hole 41; the adjusting pieces 5 are provided with external threads, and the adjusting pieces 5 are in one-to-one correspondence with the first threaded holes 42 through threaded fit; the ends of the plurality of adjusters 5 located in the through holes 41 are all abutted against the screw 2.

The plasticizing device of the present invention is used for melting a plastic material, and includes: the charging barrel comprises a charging barrel 1, wherein the charging barrel 1 is provided with an inner cavity extending along a preset direction; the screw rod 2 is arranged in the charging barrel 1 and extends along a preset direction; the rotating shaft 3 is arranged at one end of the screw rod 2 and is in transmission connection with the screw rod 2 so as to drive the screw rod 2 to rotate through the rotating shaft 3; the adjusting seat 4 is mounted on the rotating shaft 3; the adjusting seat 4 is provided with a through hole 41, and the screw rod 2 is arranged in the through hole 41 in a penetrating way and is in clearance fit with the inner wall of the through hole 41; a plurality of first threaded holes 42 are formed in the adjusting seat 4, the plurality of first threaded holes 42 are arranged at intervals along the circumferential direction of the through hole 41, and each first threaded hole 42 extends to the inner wall of the through hole 41; the adjusting pieces 5 are provided with external threads, and the adjusting pieces 5 are in one-to-one correspondence with the first threaded holes 42 through threaded fit; the ends of the plurality of adjusters 5 located in the through holes 41 are all abutted against the screw 2. By adopting the structure design, one ends of the adjusting pieces 5 all extend into the through hole 41 and are abutted against the screw rod 2, so that the screw rod 2 is positioned and supported. When the screw rod 2 and the charging barrel 1 are not centered due to machining errors, assembly errors and the like, the length of each adjusting piece 5 extending into the through hole 41 can be adjusted by rotating the plurality of adjusting pieces 5, so that the supporting effect on the screw rod 2 is changed, and the screw rod 2 is positioned in the center of the charging barrel 1. Like this, can play more effective regulation effect to plasticizing device's screw rod 2, solve the problem of plasticizing device's among the prior art screw rod regulation difficulty.

When the plasticizing device works, a plastic material is added into an inner cavity of the material barrel 1, the rotating shaft 3 drives the screw rod 2 to rotate, and the plastic material is extruded, rubbed and melted at a gap between the screw rod 2 and the material barrel 1 and is conveyed to the end part of the screw rod 2 under the pushing action when the screw rod 2 rotates.

Specifically, the plasticizing device comprises a plurality of locking pieces 6, and each locking piece 6 is provided with a second threaded port; the locking pieces 6 are in one-to-one correspondence with the adjusting pieces 5 through threads; the plurality of locking pieces 6 each have a locked state and an unlocked state, and when each locking piece 6 is in the locked state, the locking piece 6 abuts against the adjustment seat 4; when the respective adjusting member 5 is in the unlocked state, the locking member 6 is separated from the adjusting seat 4.

That is to say, through rotatory locking piece 6, can adjust its position on regulating part 5 to make it have locking state and unblock state, when rotating locking piece 6 to locking state, it can with adjust seat 4 butt, thereby can make between the adjusting seat 4, regulating part 5 and the locking piece 6 three relatively fixed, prevent that regulating part 5 from adjusting seat 4 and rotating, thereby guarantee regulating part 5 to the stable support and the fixed of screw rod 2.

Specifically, the adjusting seat 4 is formed by splicing a plurality of segments 43, and the plurality of segments 43 are sequentially arranged along the circumferential direction of the through hole 41; the inner wall of through-hole 41 is equipped with first joint cooperation portion 44, and the outer wall of screw rod 2 is equipped with second joint cooperation portion, and first joint cooperation portion 44 cooperates with second joint cooperation portion joint to through first joint cooperation portion 44 and second joint cooperation portion restriction screw rod 2 along its axial displacement.

The adjusting seat 4 is formed by splicing two segments 43, and the two segments 43 are both semicircular structures; each segment 43 is provided with a plurality of first threaded holes 42.

In this embodiment, the first snap-fit portion 44 is an annular flange and the second snap-fit portion is an annular groove. Of course, the first snap-fit portion 44 and the second snap-fit portion may be of other configurations, such as the first snap-fit portion 44 being an annular groove and the second snap-fit portion being an annular flange.

Specifically, the adjusting seat 4 is provided with a plurality of connecting holes 45, and the plurality of connecting holes 45 are arranged at intervals along the circumferential direction of the through hole 41; the adjusting seat 4 is connected with the rotating shaft 3 through a connecting piece 7 arranged in the connecting hole 45 in a penetrating way.

Specifically, the plasticizing device includes: the hopper base 8 is provided with a mounting hole extending along a preset direction, and the charging barrel 1 is arranged in the mounting hole in a penetrating manner; the first end of the hopper seat 8 is clamped and matched with the charging barrel 1; the fixing piece 9 is arranged on one side, close to the rotating shaft 3, of the hopper seat 8, the fixing piece 9 is in threaded connection and matching with the charging barrel 1, and the fixing piece 9 is abutted to the second end of the hopper seat 8; wherein, the first end of hopper seat 8 and the second end of hopper seat 8 are the relative both ends along predetermineeing the direction of hopper seat 8.

Like this, hopper seat 8's one end and feed cylinder 1 butt, the other end and 9 butts of mounting, and mounting 9 again with feed cylinder 1 threaded connection, consequently, just also be equivalent to hopper seat 8's both ends homoenergetic and can exert thrust to feed cylinder 1 to make feed cylinder 1 and hopper seat 8 relatively fixed, realized conveniently, install the purpose on hopper seat 8 with feed cylinder 1 steadily.

In this embodiment, a third threaded hole is formed in the fixing member 9, an external thread is formed on the side wall of the material cylinder 1, and the material cylinder 1 is inserted into the third threaded hole. That is, the fixing member 9 is provided around the cartridge 1, so that a more stable fixing effect can be exerted on the cartridge 1.

Hopper seat 8 is used for installing the hopper, is equipped with feed inlet 81 on the hopper seat 8, is equipped with on the feed cylinder 1 and dodges the mouth, feed inlet 81 with dodge mouthful intercommunication to make plastic material can loop through feed inlet 81 and dodge in mouthful entering feed cylinder 1's inner chamber.

Specifically, a first pin hole is formed in the hopper seat 8, and a second pin hole is formed in the charging barrel 1; the plasticizing device comprises a positioning pin 10, wherein the positioning pin 10 penetrates through the first pin hole and the second pin hole, so that the charging barrel 1 is limited to move along the preset direction relative to the hopper seat 8 through the positioning pin.

Specifically, the plasticizing device comprises a base 11 and a sliding seat 12, wherein the sliding seat 12 is slidably arranged on the base 11 along a preset direction; the rotary shaft 3 is mounted on the slide base 12.

The sliding seat 12 moves in a preset direction relative to the base 11, so that the screw 2 can be driven to move in the preset direction relative to the charging barrel 1, and plasticized materials at the end of the screw are extruded.

The rotating shaft 3 is rotatably mounted on the sliding seat 12, and the plasticizing device further includes a belt wheel 13 connected to a transmission belt to drive the belt wheel 13 to rotate via the transmission belt, and the belt wheel is connected to the rotating shaft 3 to rotate the rotating shaft 3.

In addition, the invention also provides an injection molding machine which comprises the plasticizing device.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plasticizing device for melting plastic material, characterized in that the plasticizing device comprises:

the charging barrel (1) is provided with an inner cavity extending along a preset direction;

the screw (2) is arranged in the charging barrel (1) and extends along the preset direction;

the rotating shaft (3) is arranged at one end of the screw rod (2) and is in transmission connection with the screw rod (2) so as to drive the screw rod (2) to rotate through the rotating shaft (3);

an adjusting seat (4), wherein the adjusting seat (4) is installed on the rotating shaft (3); a through hole (41) is formed in the adjusting seat (4), and the screw rod (2) is arranged in the through hole (41) in a penetrating mode and is in clearance fit with the inner wall of the through hole (41); a plurality of first threaded holes (42) are formed in the adjusting seat (4), the first threaded holes (42) are arranged at intervals along the circumferential direction of the through hole (41), and each first threaded hole (42) extends to the inner wall of the through hole (41);

the adjusting pieces (5) are provided with external threads, and the adjusting pieces (5) are in one-to-one correspondence with the first threaded holes (42) through threaded fit; the ends of the adjusting pieces (5) located in the through holes (41) are abutted to the screw rods (2).

2. A plasticizing device as defined in claim 1, characterized in that it comprises a plurality of locking members (6), each locking member (6) being provided with a second threaded mouth; the locking pieces (6) are in one-to-one correspondence with the adjusting pieces (5) through threads; the locking pieces (6) are in a locking state and an unlocking state, and when each locking piece (6) is in the locking state, the locking piece (6) is abutted against the adjusting seat (4); when each adjusting member (5) is in the unlocked state, the locking member (6) is separated from the adjusting seat (4).

3. A plasticizing device according to claim 1, characterized in that the adjusting seat (4) is formed by splicing a plurality of segments (43), the segments (43) being arranged one after the other in the circumferential direction of the through hole (41);

the inner wall of through-hole (41) is equipped with first joint cooperation portion (44), the outer wall of screw rod (2) is equipped with second joint cooperation portion, first joint cooperation portion (44) with the cooperation of second joint cooperation portion joint, in order to pass through first joint cooperation portion (44) with the restriction of second joint cooperation portion screw rod (2) are along its axial displacement.

4. A plasticating device as defined in claim 3, wherein said adjustment seat (4) is formed by the splicing of two segments (43), both segments (43) being of semi-circular ring configuration; a plurality of first threaded holes (42) are formed in each segment (43).

5. A plasticating device as defined in claim 3, wherein said first snap-fit portion (44) is an annular flange and said second snap-fit portion is an annular groove.

6. A plasticizing device according to claim 1, characterized in that a plurality of connecting holes (45) are provided on the adjusting seat (4), the connecting holes (45) being arranged at intervals along the circumferential direction of the through hole (41); the adjusting seat (4) is connected with the rotating shaft (3) through a connecting piece (7) arranged in the connecting hole (45) in a penetrating mode.

7. A plasticizing device as defined in any of claims 1 to 6, characterized in that the plasticizing device comprises:

the hopper seat (8) is provided with a mounting hole extending along the preset direction, and the charging barrel (1) penetrates through the mounting hole; the first end of the hopper seat (8) is clamped and matched with the charging barrel (1);

the fixing piece (9) is arranged on one side, close to the rotating shaft (3), of the hopper seat (8), the fixing piece (9) is in threaded connection and matched with the charging barrel (1), and the fixing piece (9) is abutted to the second end of the hopper seat (8);

wherein, the first end of hopper seat (8) and the second end of hopper seat (8) are the relative both ends of hopper seat (8) along predetermineeing the direction.

8. A plasticating device as defined in claim 7, wherein said hopper seat (8) is provided with a first pin hole and said barrel (1) is provided with a second pin hole; the plasticizing device comprises a positioning pin (10), wherein the positioning pin (10) penetrates through the first pin hole and the second pin hole, so that the charging barrel (1) is limited to move relative to the hopper seat (8) along the preset direction through the positioning pin.

9. Plasticizing device according to claim 1, characterized in that it comprises a base (11) and a sliding seat (12), the sliding seat (12) being slidably arranged on the base (11) along the preset direction; the rotating shaft (3) is mounted on the sliding seat (12).

10. An injection molding machine, characterized in that it comprises a plasticizing device according to any one of claims 1 to 9.