CN214773800U

CN214773800U - Injection unit of high-performance injection molding machine

Info

Publication number: CN214773800U
Application number: CN202023253984.4U
Authority: CN
Inventors: 章步青
Original assignee: Anhui Yongcheng Machinery Co ltd
Current assignee: Anhui Yongcheng Machinery Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-19
Anticipated expiration: 2030-12-29

Abstract

A high performance injection molding machine injection unit comprising: a charging barrel and a feeding screw rod; when injecting materials, the non-return ring is used for contacting the thrust ring, the non-return ring and the thrust ring form a piston structure, then injection molding materials stored at the end of the charging barrel are sprayed out from the nozzle, when storing materials, the hydraulic cylinder stretches out, meanwhile, the storage motor drives the feeding screw to rotate, the feeding screw rotates to draw out the charging barrel, the screw head rotates along with the feeding screw, when the screw head moves, the non-return ring on the screw head moves towards one side of the limiting lug, at the moment, the non-return ring is separated from the thrust ring, the injection molding materials can flow towards the end of the charging barrel from the inner ring of the non-return ring, and the non-return ring is driven to rotate simultaneously when the screw head rotates, the material stirring rod on the non-return ring also rotates along with the screw head, so that the injection molding materials stored at the end of the charging barrel are stirred, and the temperature difference of the stored materials is reduced.

Description

Injection unit of high-performance injection molding machine

Technical Field

The utility model relates to an injection molding machine technical field, concretely relates to unit is jetted out to high performance injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. The injection molding machine is annotated and is relied on the unit of spouting to realize, relies on the pay-off screw rod to remove and carry out the storage in feed cylinder end department, and among the current injection molding machine unit of spouting, the injection molding material removes to feed cylinder end department after, can not carry out the compounding once more, and the injection molding material that contacts to the feed cylinder lateral wall is great with the innermost injection molding material temperature deviation of feed cylinder, and then influences injection moulding's quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome is carrying out the storage in the feed cylinder, can not carry out the problem of stirring once more to the injection molding material of feed cylinder end, and the purpose provides a high performance injection molding machine jet-out unit.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

a high performance injection molding machine injection unit comprising:

the device comprises a charging barrel, a heating ring and a heating device, wherein a charging port is arranged on the charging barrel, a nozzle is installed at one end of the charging barrel, and the heating ring is arranged around the outer side of the charging barrel between the charging port and the nozzle;

the feeding screw is installed inside the material barrel, one end of the feeding screw penetrates out of the material barrel and is connected to the output end of the material storage motor, the material storage motor is fixedly installed on the movable plate, hydraulic cylinders are installed on two sides of the material barrel, and the output ends of the hydraulic cylinders are connected to the movable plate;

the utility model discloses a material feeding screw, including a feed cylinder, a screw rod, a screw head, a guide bar, a screw rod, a piston block, a screw rod, a thrust ring, a screw rod head, a thrust ring, a screw rod head, a thrust ring, a screw rod head, a thrust ring head, a piston block, a material stirring rod, a material feeding rod, a thrust ring head, a screw rod, a thrust ring head, a thrust ring, a piston block, a material rod, a material, a material, a material, a material, a.

Furthermore, a first material stopping plate and a second material stopping plate are arranged at the nozzle, the first material stopping plate is parallel to the second material stopping plate, the first material stopping plate is arranged on one side close to the feeding screw, a material guide hole is formed in the middle of the first material stopping plate, a plurality of discharge holes are formed in the second material stopping plate, the discharge holes are arranged on the second material stopping plate in an annular array mode, the circle center of the annular array of the discharge holes is located on the axis of the material guide hole, and a valve ball is arranged between the first material stopping plate and the second material stopping plate.

Furthermore, the outer ring side of the non-return ring is tightly attached to the inner side wall of the charging barrel.

Furthermore, the distance between the limiting lug and the side wall of the charging barrel is greater than the thickness of the stirring rod.

Furthermore, discharge holes are formed in two sides of the non-return ring respectively and communicated with the mounting groove.

The utility model has the advantages that:

the utility model has simple structure, when injecting material, the hydraulic cylinder is contracted to drive the movable plate to move, thereby driving the storage motor and the feeding screw to move relative to the material cylinder, when the screw head at the end of the feeding screw moves, the non-return ring on the screw head moves to one side of the thrust ring, when the non-return ring contacts the thrust ring, the non-return ring and the thrust ring form a piston structure, thereby spraying the injection molding material stored at the end of the material cylinder from the nozzle, when storing material, the hydraulic cylinder extends out, at the same time, the storage motor drives the feeding screw to rotate, at the same time, the feeding screw rotates to draw out the material cylinder, the screw head rotates along with the feeding screw, when the screw head moves, the non-return ring on the screw head moves to one side of the limit lug, at the same time, the non-return ring is separated from the thrust ring, the injection molding material can flow to the end of the material cylinder from the non-return ring, and the non-return ring is driven to rotate simultaneously when the screw head rotates, the stirring rod on the non-return ring also rotates along with the thrust ring, and then realize stirring the injection molding material that the feed cylinder end was stored, reduce the temperature difference of storage material.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention;

fig. 4 is a cross-sectional view of the screw head of the present invention;

FIG. 5 is a view of the screw head structure of the present invention;

in the figure: 1. a charging barrel; 2. a feed screw; 12. a material injection port; 13. a nozzle; 14. heating a ring; 15. a storage motor; 16. moving the plate; 17. a hydraulic cylinder; 21. a screw head; 22. a thrust ring; 23. a limiting bump; 24. a non-return ring; 25. a guide bar; 26. mounting grooves; 27. a piston block; 28. a material stirring rod; 31. a first material stopping plate; 32. a second material stopping plate; 33. a material guide hole; 34. a discharge hole; 35. a valve ball; 41. a discharge hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Example 1

As shown in fig. 1, 2, 4, 5; a high performance injection molding machine injection unit comprising:

the device comprises a charging barrel 1, wherein a charging port 12 is arranged on the charging barrel 1, a nozzle 13 is arranged at one end of the charging barrel 1, and a heating ring 14 is arranged around the outer side of the charging barrel 1 between the charging port 12 and the nozzle 13;

the feeding screw 2 is installed inside the material barrel 1, one end of the feeding screw 2 penetrates out of the material barrel 1 and is connected to the output end of the material storage motor 15, the material storage motor 15 is fixedly installed on a movable plate 16, hydraulic cylinders 17 are installed on two sides of the material barrel 1, and the output ends of the hydraulic cylinders 17 are connected to the movable plate 16;

the feeding screw 2 is located the inside one end fixedly connected with screw head 21 of feed cylinder 1, screw head 21 is close to 2 one end of feeding screw and installs thrust ring 22, screw head 21 keeps away from 2 one end outer lane sides of feeding screw and is equipped with spacing lug 23 of equidistance, screw head 21 between spacing lug 23 and thrust ring 22 is fitted with non-return ring 24, be connected with guide bar 25 between spacing lug 23 and the thrust ring 22, guide bar 25 slides and passes non-return ring 24, non-return ring 24 outer lane side is equipped with mounting groove 26 along the axis direction, install piston block 27 in the mounting groove 26, be fixed with on the piston block 27 and stir material pole 28, it stretches into to the feed cylinder 1 inside to stir material pole 28 to wear out mounting groove 26, non-return ring 24 inner circle diameter is greater than screw head 21 diameter, be less than thrust ring 22 outer lane diameter.

The utility model provides a high performance injection molding machine ejection unit, theory of operation:

when injecting, the hydraulic cylinder 17 is contracted to drive the movable plate 16 to move, so as to drive the material storage motor 15 and the feeding screw 2 to move relative to the material barrel 1, when the screw head 21 at the end of the feeding screw 2 moves, the non-return ring 24 on the screw head moves to one side of the thrust ring 22, when the non-return ring 24 contacts the thrust ring 22, the screw head and the non-return ring form a piston structure, so that the injection molding material stored at the end of the material barrel 1 is sprayed out from the nozzle 13, when storing, the hydraulic cylinder 17 extends out, the material storage motor 15 drives the feeding screw 2 to rotate, at the same time, the feeding screw 2 rotates to extract the material barrel 1, the screw head 21 rotates along with the feeding screw 2, when the screw head 21 moves, the non-return ring 24 on the screw head moves to one side of the limit bump 23, at the time, the non-return ring 24 is separated from the thrust ring 22, the injection molding material can flow to the end of the material barrel 1 from the inner ring 24, and the non-return ring 24 is driven to rotate simultaneously when the screw head 21 rotates, the material stirring rod 28 on the non-return ring 24 also rotates along with the material stirring rod, so that the injection molding materials stored at the end of the charging barrel 1 are stirred, and the temperature difference of the stored materials is reduced.

Example 2

On the basis of example 1, as shown in FIGS. 1-5; the nozzle 13 is provided with a first material stopping plate 31 and a second material stopping plate 32, the first material stopping plate 31 is parallel to the second material stopping plate 32, the first material stopping plate 31 is arranged near one side of the feeding screw rod 2, the middle part of the first material stopping plate 31 is provided with a material guiding hole 33, the second material stopping plate 32 is provided with a plurality of discharging holes 34, the discharging holes 34 are arranged on the second material stopping plate 32 in an annular array, the circle center of the annular array of the discharging holes 34 is located on the axis of the material guiding hole 33, and a valve ball 35 is arranged between the first material stopping plate 31 and the second material stopping plate 32. The material guiding hole 33 is of a bucket mouth-shaped structure, the diameter of the valve ball 35 is larger than the distance between the first material stopping plate 31 and the second material stopping plate 32, when the ball core of the valve ball 35 is coaxial with the axis of the material guiding hole 33, the valve ball 35 can only contact one of the first material stopping plate 31 or the second material stopping plate 32, when the injection molding material is sprayed out from the nozzle 13, the internal pressure of the charging barrel 1 is increased, the valve ball 35 is further pushed to be separated from the material guiding hole 33, the injection molding material can pass through the material guiding hole 33 and be discharged through the material discharging hole 34, when the injection molding material is stored in the charging barrel 1, the pressure at the end of the charging barrel 1 is reduced, at the moment, the valve ball 35 is tightly adsorbed on the material guiding hole 33 under the action of suction, the sealing of the material guiding hole 33 is realized, and the end of the charging barrel 1 is convenient to store materials.

The outer ring side of the non-return ring 24 is closely attached to the inner side wall of the charging barrel 1.

The distance between the limiting lug 23 and the side wall of the charging barrel 1 is larger than the thickness of the stirring rod 28.

Two sides of the non-return ring 24 are respectively provided with a discharge hole 41, and the discharge holes 41 are communicated with the mounting groove 26. Facilitating the ejection of the injection molding material in the mounting groove 26.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An injection unit of a high-performance injection molding machine, comprising:

2. The injection unit of a high performance injection molding machine according to claim 1, wherein a first material stopping plate and a second material stopping plate are provided at the nozzle, the first material stopping plate is parallel to the second material stopping plate, the first material stopping plate is provided near the feeding screw, a material guiding hole is provided at the middle part of the first material stopping plate, a plurality of material discharging holes are provided on the second material stopping plate, the material discharging holes are arranged on the second material stopping plate in an annular array, the center of the annular array of the material discharging holes is located on the axis of the material guiding hole, and a valve ball is provided between the first material stopping plate and the second material stopping plate.

3. The injection unit of claim 1, wherein the outer periphery of said check ring is disposed against the inner wall of said barrel.

4. The injection unit of claim 1 wherein said stop projection is spaced from the side wall of the barrel by a distance greater than the thickness of the pin.

5. The injection unit of a high performance injection molding machine as claimed in claim 1, wherein said check ring is provided with discharge holes at both sides thereof, respectively, said discharge holes being communicated with the mounting groove.