CN110900964A

CN110900964A - Accurate mould in location

Info

Publication number: CN110900964A
Application number: CN201911069647.9A
Authority: CN
Inventors: 傅浩
Original assignee: Jiangsu Yongxing Financial Equipment Co Ltd
Current assignee: Jiangsu Yongxing Financial Equipment Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-03-24

Abstract

The invention discloses a mold with accurate positioning, which belongs to the field of injection molds and comprises a lower mounting seat, a fixed mold, a first mounting hole, mounting threads, a guide pillar body, a limiting hole, a clamping hole, a limiting screw rod, a spring, a clamping needle and an upper mold structure. According to the guide pillar body installation structure, the guide pillar body is installed through the threads on the first installation hole, so that the worn guide pillar can be conveniently replaced, the clamping needle is pushed by the spring in the clamping hole, the clamping needle falls into the limiting hole after the guide pillar body is screwed in place, the guide pillar body is locked, the guide pillar body is prevented from rotating, the installation firmness of the guide pillar body is further enhanced, meanwhile, the existing guide pillar is directly rubbed with a movable mold through the detachable sleeve on the upper mold structure to be rubbed with the sleeve, the worn part is replaced through the sleeve convenient to replace, and the mold closing accuracy of a mold is enhanced.

Description

Accurate mould in location

Technical Field

The invention relates to the field of injection molds, in particular to an injection mold.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

The direction of movable mould is often carried out through setting up the guide pillar on the cover half to current injection mold, and after the mould was used for a long time, the guide pillar can lead to the fact wearing and tearing to the entrance to a cave and the guide pillar itself that supply the guide pillar cartridge on the movable mould, and then influences the accuracy nature that the mould folds, leads to the injection moulding product appearance to deviate, and then influences product quality.

Disclosure of Invention

The invention aims to solve the problem that the quality of an injection product is influenced due to inaccurate die assembly caused by abrasion of a guide pillar of the existing injection die, and designs a die with accurate positioning.

The technical scheme of the invention is that the die with accurate positioning comprises a lower mounting seat, a fixed die, a first mounting hole, mounting threads, a guide pillar body, a limiting hole, a clamping hole, a limiting screw rod, a spring, a clamping pin and an upper die structure, wherein the fixed die is mounted on the lower mounting seat;

four installation holes are rectangular and are distributed at four corners of the upper surface of the fixed die, installation threads are carved on the inner wall of the installation hole, the guide pillar body is screwed and inserted on the installation threads in the installation hole, the limiting holes are transversely formed in the side surface of the guide pillar body, the clamping holes are formed in the side wall of the fixed die, the limiting screw is screwed and inserted in the clamping holes, the spring is installed at the inner end of the limiting screw and located in the clamping holes, the clamping pins are slidably inserted in the clamping holes and connected with the inner end of the spring, and the upper die structure is arranged above the fixed die.

Preferably, go up the die structure and include No. two installation holes, sleeve pipe, snap ring, go up mount pad, movable mould, four No. two installation holes are installed on the movable mould four corners and are passed the movable mould lower surface and correspond with an installation hole position, the sleeve pipe slides the cartridge in No. two installation holes, the snap ring is installed in the sleeve pipe upper end and is fallen on No. two installation hole tops, go up the mount pad through bolted connection on the movable mould upper surface and with the laminating of movable mould upper surface.

Preferably, the second mounting hole is provided with an annular groove corresponding to the clamping ring, and the clamping ring abuts against the lower surface of the upper mounting seat.

Preferably, the limiting hole is in a round table-shaped cylindrical hole body structure with a small inner part and a large outer part.

Preferably, the clamping needle is of a conical structure with a narrow front part and a wide rear part, and the width of the front end of the clamping needle is larger than that of the inner end of the limiting hole.

Advantageous effects

The invention provides an injection mold, which has the following beneficial effects that through the structural design of the injection mold, a guide pillar body is installed by utilizing threads on a first installation hole, so that a worn guide pillar is convenient to replace, meanwhile, a clamping needle is pushed by utilizing a spring in the clamping hole, and then after the guide pillar body is screwed in place, the clamping needle falls into a limiting hole to lock the guide pillar body, so that the guide pillar body is prevented from rotating, the installation firmness of the guide pillar body is enhanced, meanwhile, the existing guide pillar is directly rubbed with a movable mold to be rubbed with a sleeve through a detachable sleeve on an upper mold structure, the worn part is replaced through the sleeve convenient to replace, the mold closing accuracy of the injection mold is enhanced, and the problem in the prior art is solved.

Drawings

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

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged schematic view of the portion B shown in FIG. 1 according to the present invention.

In the figure, 1, a lower mounting seat; 2. fixing a mold; 3. a first mounting hole; 4. installing threads; 5. a guide post body; 6. limiting holes; 7. blocking holes; 8. a limit screw; 9. a spring; 10. clamping a needle; 11. a second mounting hole; 12. a sleeve; 13. a snap ring; 14. an upper mounting seat; 15. moving the mold; 16. a gate; 17. a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a mold with accurate positioning comprises a lower mounting seat 1, a fixed mold 2, a first mounting hole 3, mounting threads 4, a guide pillar body 5, a limiting hole 6, a clamping hole 7, a limiting screw 8, a spring 9, a clamping pin 10 and an upper mold structure, wherein the fixed mold 2 is mounted on the lower mounting seat 1;

four installation holes 3 are distributed in four corners of the upper surface of the fixed die 2 in a rectangular mode, installation threads 4 are carved on the inner wall of the installation hole 3, a guide pillar body 5 is screwed and inserted on the installation threads 4 in the installation hole 3, threads are arranged on the guide pillar body 5 and are convenient to screw in the installation hole 3, a limiting hole 6 is transversely formed in the side surface of the guide pillar body 5, a clamping hole 7 is formed in the side wall of the fixed die 2, a limiting screw 8 is screwed and inserted in the clamping hole 7, the limiting screw 8 and the clamping hole 7 are provided with threads in response and are convenient to screw and connect, a spring 9 is arranged at the inner end of the limiting screw 8 and is located in the clamping hole 7, a clamping pin 10 is slidably inserted in the clamping hole 7 and is connected with the inner end of the spring 9, and an upper die structure is.

Go up the die structure and include No. two mounting holes 11, sleeve pipe 12, snap ring 13, go up mount pad 14, movable mould 15, four No. two mounting holes 11 are installed on movable mould 15 four corners and are passed movable mould 15 lower surface and correspond with a mounting hole 3 position, sleeve pipe 12 slides the cartridge in No. two mounting holes 11, snap ring 13 is installed in sleeve pipe 12 upper end and is fallen on No. two mounting holes 11 tops, go up mount pad 14 through bolted connection on movable mould 15 upper surface and with the laminating of movable mould 15 upper surface.

And an annular groove corresponding to the clamping ring 13 is formed in the second mounting hole 11, the clamping ring 13 abuts against the lower surface of the upper mounting seat 14, so that the clamping ring 13 is matched with the clamping ring 13 to fix the sleeve 12, and in addition, the upper surface of the clamping ring 13 is flush with the upper surface of the movable mold 15, and is attached to the lower surface of the upper mounting seat 14.

The limiting hole 6 is a round table-shaped cylindrical hole body structure with a small inner part and a large outer part, and is convenient to correspond to the shape of the clamping needle 10.

The card needle 10 is the taper structure of narrow back width in the front, and its front end width is greater than the inner width in spacing hole 6, and then when the card needle 10 inserted in spacing hole 6, card needle 10 front end can fully contact with spacing hole 6 inner wall, and then makes spacing hole 6 fully fixed by card needle 10.

The fixed die 2 and the movable die 15 of the die are matched in shape, and a die cavity for pouring is formed at the connecting part of the fixed die and the movable die.

The mould is provided with a pouring gate 16 and a push rod 17, the pouring gate 16 passes through an upper mounting seat 14 and is inserted and mounted on a movable mould 15 and passes through the movable mould 15 to a mould cavity, the push rod 17 is inserted and mounted on a fixed mould 2 in a sliding manner and passes through a lower mounting seat 1, the upper end of the push rod 17 is positioned below the mould cavity, the push rod 17 and a pouring opening 16 are commonly arranged in the existing mould, and for the prior art, the mould is only roughly introduced, and parts which are not introduced can be known by persons in the field by referring to the prior art, and the introduced parts cannot be used as the reasons for lack of the practicability of the mould.

In this embodiment:

firstly, mounting a lower mounting seat 1 of the mold on injection molding equipment, and mounting an upper mounting seat 14 on a movable mold mounting part of the injection molding equipment so as to finish the mounting of the mold;

during injection molding, the injection molding equipment firstly pushes the movable mold 15 to move so that the movable mold 15 abuts against the fixed mold 2, an injection molding cavity is formed between the movable mold 15 and the fixed mold 2, then plastic melt is filled into the injection molding cavity through the sprue 16, after the plastic melt is cooled, the movable mold 15 and the fixed mold 2 are separated, and a product formed by the plastic melt is pushed out by the push rod 17 to complete injection molding;

when the guide pillar body 5 is worn, firstly, the limiting screw 8 is unscrewed to drive the spring 9 and the clamping needle 10 to move outwards, then the clamping needle 10 is pulled out of the limiting hole 6 without limiting the limiting hole 6, and then the guide pillar body 5 is screwed to further screw the guide pillar body 5 out of the mounting thread 4 on the fixed die 2;

then, a new guide pillar body 5 is screwed on the mounting thread 4, and then the limiting screw 8 is screwed inwards, so that after the limiting hole 6 in the guide pillar body 5 reaches the same height as the clamping pin 10, the clamping pin 10 is pushed by the spring 9 to fall into the limiting hole 6, the guide pillar body 5 cannot rotate, and the guide pillar body is prevented from falling off due to vibration loosening after long-term use;

when the sleeve 12 on the movable die 15 is worn and needs to be replaced, the movable die 15 is detached from the upper mounting seat 14, the sleeve 12 is taken out, a new sleeve 12 is inserted, the mounting seat 14 is mounted on the movable die 15, the snap ring 13 is fixed by the mounting seat 14, and then the sleeve is fixed, so that the replacement is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mold with accurate positioning comprises a lower mounting seat (1), a fixed mold (2), a first mounting hole (3), mounting threads (4), a guide pillar body (5), a limiting hole (6), a clamping hole (7), a limiting screw (8), a spring (9), a clamping needle (10) and an upper mold structure, wherein the fixed mold (2) is mounted on the lower mounting seat (1);

the novel fixed die is characterized in that the four first installation holes (3) are distributed on four corners of the upper surface of the fixed die (2) in a rectangular mode, the installation threads (4) are carved on the inner wall of the first installation hole (3), the guide post body (5) is installed on the installation threads (4) in the first installation hole (3) in a screwing and inserting mode, the limiting hole (6) is transversely formed in the side surface of the guide post body (5), the clamping hole (7) is formed in the side wall of the fixed die (2), the limiting screw (8) is installed in the clamping hole (7) in a screwing and inserting mode, the spring (9) is installed at the inner end of the limiting screw (8) and located in the clamping hole (7), the clamping needle (10) is installed in the clamping hole (7) in a sliding and connected with the inner end of the spring (9), and the upper die structure is arranged above the fixed die (2).

2. The die as claimed in claim 1, wherein the upper die structure comprises a second mounting hole (11), a sleeve (12), a snap ring (13), an upper mounting seat (14) and a movable die (15), four second mounting holes (11) are mounted at four corners of the movable die (15) and penetrate through the lower surface of the movable die (15) to correspond to the first mounting hole (3), the sleeve (12) is slidably inserted into the second mounting hole (11), the snap ring (13) is mounted at the upper end of the sleeve (12) and falls above the second mounting hole (11), and the upper mounting seat (14) is connected to the upper surface of the movable die (15) through bolts and is attached to the upper surface of the movable die (15).

3. The die as claimed in claim 2, wherein the second mounting hole (11) is provided with an annular groove corresponding to the snap ring (13), and the snap ring (13) abuts against the lower surface of the upper mounting seat (14).

4. The die according to claim 1, wherein the limiting hole (6) is a truncated cone-shaped cylindrical hole body structure with a small inner part and a large outer part.

5. The mold according to claim 1, characterized in that the latch needle (10) is a cone structure with a narrow front part and a wide rear part, and the width of the front end of the latch needle is larger than that of the inner end of the limiting hole (6).