CN217414705U

CN217414705U - Feeding device for injection molding machine

Info

Publication number: CN217414705U
Application number: CN202220288382.2U
Authority: CN
Inventors: 陈恩明; 屈红兵; 严鹤斌
Original assignee: Shanghai Guangsu Machinery Manufacture Co ltd
Current assignee: Shanghai Guangsu Machinery Manufacture Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-09-13
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a feeding device for an injection molding machine, relating to the technical field of injection molding processing; comprises a hopper, an extrusion component and a stirring component; the stirring assembly comprises a bracket, a transverse positioning ring and a longitudinal positioning ring which are perpendicular to each other are arranged on the bracket, an auxiliary disc is rotatably arranged in the transverse positioning ring, and a driving disc is rotatably arranged in the longitudinal positioning ring; a plurality of groups of through holes which are distributed annularly and have corresponding positions are respectively arranged on the driving disc and the auxiliary disc; the stirring assembly comprises a plurality of groups of L-shaped stirring rods, the two ends of each stirring rod are respectively inserted into the through holes in the driving disc and the auxiliary disc, and one end of each stirring rod, which penetrates out of the auxiliary disc, is inserted into the hopper. This device has used unique stirring structure, can accomplish fore-and-aft material mixing when transversely stirring, ensures that the stirring does not have the dead angle, and avoids the stirring in-process layering to appear, makes the raw materials mix more evenly.

Description

Feeding device for injection molding machine

Technical Field

The utility model relates to an injection molding processing technology field specifically is a loading attachment for 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. It is divided into vertical, horizontal and 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 system is one of the most important components of an injection molding machine, and generally has three main forms of plunger type, screw type and screw pre-molding plunger injection type. The function of the injection molding machine is that after a certain amount of plastic is heated and plasticized in a specified time in one cycle of the injection molding machine, the molten plastic is injected into a mold cavity through a screw at a certain pressure and speed.

The feeding system main part of injection molding machine is for installing the hopper on injection system, puts into the hopper with plastics master batch and other raw materialss, stirs the raw materials, sends the mixture into injection system after the misce bene, can accomplish the heating and the work of extruding to the raw materials. However, the common hopper is generally used for horizontal stirring, and is limited by the shape of the hopper, so that a lot of stirring dead angles can appear, the uniform mixing of raw materials cannot be guaranteed, and the injection molding raw materials are different in particle size and different in density, so that the raw materials are easily layered in the horizontal stirring process, and the difficulty in mixing the raw materials is further increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a loading attachment for injection molding machine to solve the problem that proposes among the above-mentioned background art. This device can carry out abundant mixture to the raw materials, carries out the mixture of vertical raw materials when transversely stirring, reduces the stirring dead angle, avoids the problem of layering to appear among the stirring process.

In order to achieve the above object, the utility model provides a following technical scheme:

a feeding device for an injection molding machine comprises a hopper, an extrusion assembly and a stirring assembly; the stirring assembly comprises a bracket, a transverse positioning ring and a longitudinal positioning ring which are perpendicular to each other are mounted on the bracket, an auxiliary disc is rotatably mounted in the transverse positioning ring, and a driving disc is rotatably mounted in the longitudinal positioning ring; a plurality of groups of through holes which are distributed annularly and have corresponding positions are respectively arranged on the driving disc and the auxiliary disc; the stirring assembly comprises a plurality of groups of L-shaped stirring rods, through holes are respectively inserted into the two ends of the stirring rods, the through holes are respectively formed in the driving disk and the auxiliary disk, one end of each stirring rod, which penetrates out of the auxiliary disk, is inserted into the hopper, and the inverted cone-shaped stirring cone is installed at one end of each stirring rod, which is located in the hopper.

As a further aspect of the present invention: install the one-level motor on the support, the axis of rotation is connected to the one-level motor, the axis of rotation hub connection driving-disc, support fixed connection hopper, the transverse positioning circle is located the open end of hopper and is parallel with the open end of hopper.

As the utility model discloses further scheme again: one end of the stirring cone, which is close to the stirring rod, is in an opening shape, and two sides of the stirring cone are respectively provided with a through groove.

As a further aspect of the present invention: the one side that the open end was kept away from to the hopper is the inclined plane, the inclined plane of hopper cooperatees with the distribution position of a plurality of stirring awl, the discharge gate is installed to one side that the open end was kept away from to the inclined plane of hopper.

As a further aspect of the present invention: the extrusion assembly comprises a cylinder, a screw rod is rotatably arranged in the cylinder, and the screw rod penetrates out of the cylinder to be connected with a secondary motor.

As a further aspect of the present invention: the heating wire is spirally wound on the inner wall of the cylinder, and an extrusion opening is arranged at one end, far away from the secondary motor, of the cylinder.

As a further aspect of the present invention: the discharge gate is connected to the one end that the drum is close to the second grade motor, discharge gate internally mounted has the control valve.

Compared with the prior art, the beneficial effects of the utility model are that:

the feeding device for the injection molding machine is adopted, the device uses a special stirring component and is limited by a driving disc and an auxiliary disc which are perpendicular to each other, a plurality of groups of stirring rods with right angles are respectively inserted into through holes corresponding to the driving disc and the auxiliary disc, the structure is similar to a universal joint for connecting rotating shafts in different directions, namely when the driving disc rotates, the stirring rods are driven to rotate simultaneously and transmit the rotation to the auxiliary disc, so that the auxiliary disc can rotate along the axis of the auxiliary disc, when the auxiliary disc rotates, the length of the corresponding inserted auxiliary disc can also change due to the change of the position of the driving rod, namely, the height of the corresponding stirring cone on the stirring rod entering the hopper is changed along with the change of the height of the stirring cone, a plurality of groups are limited by the positions, the state of inclined surfaces formed by the groups of the stirring cones can not change, but each stirring cone can respectively move along the inclined annular shape, when transverse stirring is carried out, constantly take the eminence to the raw materials of low department through the stirring awl to reach better mixed effect, avoid appearing the layering, and have the difference in height between the puddler of this device, only need make the hopper laminating stir the distribution shape of awl, can avoid the bottom problem at stirring dead angle to appear.

Drawings

Fig. 1 is a schematic structural view of a feeding device for an injection molding machine.

Fig. 2 is a schematic structural diagram of a stirring assembly in a feeding device for an injection molding machine.

Fig. 3 is a schematic structural diagram of a hopper in the feeding device for the injection molding machine.

In the figure: 1. a transverse positioning ring; 2. an auxiliary disc; 3. a stirring rod; 4. a drive plate; 5. a longitudinal positioning ring; 6. a rotating shaft; 7. a first-stage motor; 8. a support; 9. a stirring assembly; 10. a hopper; 11. a stirring cone; 12. a through groove; 13. a discharge port; 14. a control valve; 15. a secondary motor; 16. a cylinder; 17. a screw; 18. an extrusion assembly; 19. heating wires; 20. an extrusion port; 21. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in embodiment 1 of the present invention, a feeding device for an injection molding machine includes a hopper 10, an extrusion assembly 18, and a stirring assembly 9; the stirring assembly 9 comprises a bracket 8, a transverse positioning ring 1 and a longitudinal positioning ring 5 which are perpendicular to each other are arranged on the bracket 8, an auxiliary disc 2 is rotatably arranged in the transverse positioning ring 1, and a driving disc 4 is rotatably arranged in the longitudinal positioning ring 5; a plurality of groups of through holes 21 which are distributed annularly and have corresponding positions are respectively arranged on the driving disc 4 and the auxiliary disc 2; stirring assembly 9 includes puddler 3 of multiunit L type, through-hole 21 on driving-disc 4 and the auxiliary disk 2 is inserted respectively at the both ends of puddler 3, puddler 3 wears out in the one end of auxiliary disk 2 inserts hopper 10, the stirring awl 11 of back taper is installed to the one end that puddler 3 is located hopper 10.

The device uses the bracket 8 to install the transverse locating ring 1 and the longitudinal locating ring 5 which are vertical to each other, and the auxiliary disc 2 and the driving disc 4 are respectively installed in the device, and the bracket 8 is used for self-weighing and limiting, so that the auxiliary disc 2 and the driving disc 4 can only rotate. Open the through-hole 21 that has the multiunit position to correspond on auxiliary disk 2 and the driving-disc 4 respectively, the both ends of puddler 3 insert respectively in the through-hole 21 that corresponds, when driving-disc 4 rotates, puddler 3 is compeled to take place to rotate, and transmit this kind of rotation for auxiliary disk 2, receive the position restriction of auxiliary disk 2, the rotation of puddler 3 also restricts in the region of auxiliary disk 2, and because driving-disc 4 vertically installs, except that can carrying out horizontal rotation in hopper 10 when puddler 3 rotates, can also take place vertical altitude variation, horizontal rotation can stir the raw materials, vertical removal then can carry out high transport to the raw materials, the mixing efficiency is improved, avoid the layering to appear in the raw materials stirring process.

The stirring awl 11 of 3 bottoms of puddler can increase the area on the one hand, it mixes to drive more raw materialss, the efficiency of mixing is improved, on the other hand can transport partly raw materials to the eminence, avoid appearing the layering, the pointed cone shape of bottom can alleviate the resistance when the stirring axle moves down, the large tracts of land of top can transport partly material, the groove 12 that runs through of both sides can make the entering and the outflow that the material of inside lasts, the mixing of the different position raw materialss of initial sight, avoid the material to pile up in stirring awl 11.

Example 2

Referring to fig. 1 to fig. 3, the main difference between the embodiment 2 and the embodiment 1 is:

referring to fig. 1 and 2, in embodiment 2 of the present invention, a first-stage motor 7 is installed on the support 8, the first-stage motor 7 is connected to the rotating shaft 6, the rotating shaft 6 is connected to the driving disc 4, the support 8 is fixedly connected to the hopper 10, and the transverse positioning ring 1 is located at an open end of the hopper 10 and is parallel to the open end of the hopper 10. The one-level motor 7 drives the driving disc 4 to rotate through the rotating shaft 6, so that the whole stirring assembly 9 is driven to move, the transverse positioning ring 1 is located right above the hopper 10, the stirring rods 3 can be uniformly distributed in the hopper 10, and the stirring dead angle is avoided.

Referring to fig. 1 and 2, one end of the stirring cone 11 close to the stirring rod 3 is open, and two sides of the stirring cone 11 are respectively provided with a through groove 12. Stirring awl 11 becomes cave form, can take away partial raw materials from the bottom in the stirring process, and the in-process that rises constantly adds new raw materials to the raw materials that will have fills in the region of passing through groove 12, carries out lasting raw materials renewal promptly, realizes the mixing in the direction of height, avoids the layering.

Referring to fig. 1 and 3, one surface of the hopper 10 away from the open end is an inclined surface, the inclined surface of the hopper 10 is matched with the distribution positions of the stirring cones 11, and a discharge hole 13 is installed on one side of the inclined surface of the hopper 10 away from the open end. The combination that stirring awl 11 constitutes is on an inclined plane, and the shape design of hopper 10 becomes the inclined plane with stirring awl 11 complex, can enough avoid the raw materials to pile up when using, makes the raw materials can normally flow down along the inclined plane, can avoid stirring the dead angle again, makes each regional stirring that can both be abundant.

Referring to fig. 1, the extrusion assembly 18 includes a cylinder 16, a screw 17 is rotatably mounted inside the cylinder 16, and the screw 17 penetrates out of the cylinder 16 and is connected to a secondary motor 15. After the raw material enters the cylinder 16, the secondary motor 15 drives the screw 17 to rotate, and the raw material is pushed towards one end under the action of the screw 17 to finish extrusion.

Referring to fig. 1, a spirally wound heating wire 19 is installed on the inner wall of the cylinder 16, and an extrusion opening 20 is installed at one end of the cylinder 16 far from the secondary motor 15. The heating wire 19 heats the raw materials in the cylinder 16, so that the plastic master batches and various raw materials are heated to a molten state and fused, and finally the molten plastic is extruded from the extrusion port 20, thereby completing injection molding.

Referring to fig. 1, one end of the cylinder 16 close to the secondary motor 15 is connected to a discharge port 13, and a control valve 14 is installed inside the discharge port 13. The raw material in the hopper 10 enters from one end of the cylinder 16 through the discharge port 13 and is extruded from the other end, and the intermediate process is used for heating and melting the raw material. The control valve 14 is used to limit the delivery of the material.

The utility model discloses a theory of operation is:

this device has used the special stirring subassembly 9 of structure, under the cooperation of driving-disc 4 and auxiliary disk 2, the puddler 3 in the rotation is except carrying out horizontal rotation in hopper 10, the change in height still can take place, the position of 3 bottom stirring awl 11 of puddler of each group forms an inclined plane all the time, consequently, through using the hopper 10 that has the inclined plane, can use this device to carry out the intensive mixing at no dead angle to the raw materials in the hopper 10, and can promote the mixture of raw materials in vertical direction, avoid the raw materials problem that the layering appears in the stirring process that lasts.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A feeding device for an injection molding machine comprises a hopper, an extrusion assembly and a stirring assembly; the stirring device is characterized in that the stirring assembly comprises a bracket, a transverse positioning ring and a longitudinal positioning ring which are perpendicular to each other are mounted on the bracket, an auxiliary disc is rotatably mounted in the transverse positioning ring, and a driving disc is rotatably mounted in the longitudinal positioning ring; a plurality of groups of through holes which are distributed annularly and have corresponding positions are respectively arranged on the driving disc and the auxiliary disc; the stirring assembly comprises a plurality of groups of L-shaped stirring rods, through holes are respectively inserted into the two ends of each stirring rod, the stirring rods penetrate through the ends of the driving disks and the auxiliary disks and are inserted into the hopper, and the end, located in the hopper, of each stirring rod is provided with a stirring cone with an inverted cone.

2. The feeding device for the injection molding machine as claimed in claim 1, wherein the bracket is provided with a primary motor, the primary motor is connected with a rotating shaft, the rotating shaft is connected with a driving disc, the bracket is fixedly connected with the hopper, and the transverse positioning ring is positioned at the open end of the hopper and is parallel to the open end of the hopper.

3. The feeding device for the injection molding machine as claimed in claim 1, wherein one end of the stirring cone close to the stirring rod is open, and through grooves are respectively formed on two sides of the stirring cone.

4. The feeding device for the injection molding machine as claimed in claim 1 or 2, wherein one side of the hopper away from the open end is an inclined surface, the inclined surface of the hopper is matched with the distribution positions of the stirring cones, and a discharge port is installed on one side of the inclined surface of the hopper away from the open end.

5. The feeding device for the injection molding machine as claimed in claim 1, wherein the extrusion assembly comprises a cylinder, a screw is rotatably mounted inside the cylinder, and the screw penetrates out of the cylinder and is connected with a secondary motor.

6. The feeding device for the injection molding machine as claimed in claim 5, wherein the inner wall of the cylinder is provided with a spirally wound heating wire, and one end of the cylinder, which is far away from the secondary motor, is provided with an extrusion port.

7. The feeding device for the injection molding machine as claimed in claim 5 or 6, wherein one end of the cylinder close to the secondary motor is connected with a discharge port, and a control valve is installed inside the discharge port.