CN216579042U

CN216579042U - Exchange mold insert mechanism injection mold fast

Info

Publication number: CN216579042U
Application number: CN202122620326.2U
Authority: CN
Inventors: 林碧山; 庄惠凤; 吴敬泽
Original assignee: Xiamen Surini Precision Mould Co ltd
Current assignee: Chaori Xiamen Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-24
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to an injection mold for a quick-change insert mechanism, which comprises a front mold assembly, a mold core assembly, a rear mold assembly, and an insert rod. The mold core assembly includes a replaceable insert; the insert is provided with a pin slot. and the inclined step, the front mold assembly and/or the rear mold assembly are provided with a first insertion hole extending to the pin slot and a second insertion hole extending to the inclined step; when the insertion rod is inserted into the pin slot from the first insertion hole, The insert is fixed; when the insert rod is inserted from the second jack, the insert rod is fitted with the inclined step and the insert is lifted up. In the injection mold of the quick-change insert mechanism, when the insert rod is inserted into the latch slot from the first socket, the front and rear directions of the insert are fixed and cannot move; When the jack is inserted, the insert rod forms an inclined guide fit with the inclined step, and the insert is pushed out as the insert rod is inserted. The technical solution realizes the fixation and rapid replacement of the insert, greatly improves the efficiency of replacing the insert of the mold, and increases the production capacity.

Description

Exchange mold insert mechanism injection mold fast

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with a quick insert exchange mechanism.

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 by means of an injection mold is a processing method used in mass production of some parts having complicated shapes. The method comprises the specific steps of injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and cooling and solidifying to obtain a formed product. Because different batches of injection-molded products often need to be provided with differences in models and details, replaceable inserts are often required to be provided in the mold core, and grooves of different models or patterns are provided in the inserts to form slightly different injection-molded products. However, when the mold insert of the mold core is removed and replaced, the whole mold needs to be disassembled one by one, which is tedious and greatly reduces the working efficiency. Therefore, how to rapidly replace the insert is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

Therefore, the injection mold with the quick insert exchange mechanism needs to be provided for solving the problem of low insert exchange speed.

An injection mold of a quick interchangeable insert mechanism, comprising: the mold comprises a front mold component, a mold core component and a rear mold component, wherein the mold core component is arranged between the front mold component and the rear mold component; the mold core assembly comprises a replaceable insert; the insert is provided with a pin slot and an inclined step, and the front die assembly and/or the rear die assembly are/is provided with a first jack extending to the pin slot and a second jack extending to the inclined step; when the insert rod is inserted into the plug pin groove from the first plug hole, the insert is fixed; when the insert rod is inserted from the second jack, the insert rod is in inclined guide fit with the inclined step and jacks up the insert.

Further, the core assembly comprises a front core plate, a rear core plate and at least one insert embedded in the front core plate and/or the rear core plate; the front mold core plate, the rear mold core plate and the insert are enclosed to form an injection molding cavity.

Furthermore, a penetrating embedded groove is formed in the rear core plate, and the insert is embedded in the embedded groove.

Furthermore, the front half sections of the first jack and the second jack are arranged on the rear die assembly; the rear half sections of the first jack and the second jack are formed by surrounding the rear die core plate and the rear die assembly.

Further, a direction in which the front mold assembly is removed from the mold or closed to the mold is defined as a first direction, and when the insert rod is inserted from the second insertion hole, the insert rod abuts against the inclined step and jacks up the insert in the first direction.

Further, the inserted bar is a straight bar, and the first jack and the second jack are linear jacks.

Furthermore, the rear die assembly comprises a base, a rear die plate fixedly arranged on the base and an ejector plate which can be arranged between the base and the rear die plate in a vertically moving mode, and the ejector plate is connected with an ejector pin; the ejector pin penetrates through the rear mold assembly and the rear mold core plate to enter the injection molding cavity so as to eject an injection molding product during demolding.

Furthermore, an elastic part for buffering the displacement of the ejector plate and a limiting rod for limiting the displacement of the ejector plate are arranged between the rear template and the base.

The mold is provided with two jacks, and the insert is provided with a pin slot for fixing the insert and an inclined step for ejecting the insert. When the insert rod is inserted into the insert pin groove from the first insert hole, the insert is fixed in the front-back direction and cannot move; when the insert needs to be disassembled, the insert rod is pulled out and inserted from the second insertion hole, the insert rod and the inclined step form inclined guide fit, and the insert is pushed out along with the insertion of the insert rod. This technical scheme has realized the fixed and quick replacement of mold insert, very big improvement the efficiency that the mold insert was changed to the mould, promoted the productivity.

Drawings

FIG. 1 is a general schematic view of an embodiment of an injection mold with a quick interchangeable insert mechanism according to the present invention;

FIG. 2 is a front view of one embodiment of an injection mold of the quick interchangeable insert mechanism shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of aspect A-A of one embodiment of the quick interchangeable insert mechanism injection mold shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of aspect B-B of an embodiment of the quick swap insert mechanism injection mold shown in FIG. 2;

FIG. 5 is a schematic view of the insert and the insert rod of the present embodiment;

FIG. 6 is a schematic view of another angle of the insert and the insert rod of the present embodiment;

FIG. 7 is a schematic view of the insert of this embodiment;

fig. 8 is a schematic view of another angle structure of the insert according to the present embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a mold core assembly; 11. a front mold core plate; 12. a rear mold core plate; 2. a front mold assembly; 3. a rear mold assembly; 31. A first jack; 32. a second jack; 33. a base; 34. a rear template; 35. an ejector plate; 36. a thimble; 37. an elastic member; 38. a limiting rod; 4. inserting a rod; 5. an insert; 51. a latch slot; 52. and (5) inclining the step.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is apparent that the specific details set forth in the following description are merely exemplary of the utility model, which can be practiced in many other embodiments that depart from the specific details disclosed herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In one embodiment, referring to fig. 1 to 8, an injection mold with a quick interchangeable insert mechanism includes a front mold assembly 2, a core assembly 1 and a rear mold assembly 3, wherein the core assembly 1 is disposed between the front mold assembly 2 and the rear mold assembly 3; the mold core assembly comprises a mold core assembly 1, an insert rod 4, a replaceable insert 5 and a replaceable insert; the insert 5 is provided with a pin groove 51 and an inclined step 52, and the front mold assembly 2 and/or the rear mold assembly 3 are/is provided with a first plug hole 31 extending to the pin groove 51 and a second plug hole 32 extending to the inclined step 52; when the insert pin 4 is inserted into the pin groove 51 from the first insert hole 31, the insert 5 is fixed; when the insert rod 4 is inserted from the second insertion hole 32, the insert rod 4 is in inclined guide fit with the inclined step 52 and jacks up the insert 5.

In the present embodiment, the direction in which the front mold unit 2 is moved for mold releasing or mold closing is defined as a first direction, and a plane perpendicular to the first direction is defined as a first plane, the first direction being a vertical direction in the drawing, and the first plane being a horizontal plane in the drawing.

The utility model is provided with two jacks on the mould, and a pin slot 51 for fixing the insert 5 and a slant step 52 for ejecting the insert 5 are arranged on the insert 5. When the insert pin 4 is inserted into the pin groove 51 from the first insertion hole 31 therein, the insert 5 is fixed in the front-rear direction, which is not movable; when the insert 5 needs to be removed, the insert rod 4 is pulled out and inserted into the second insertion hole 32, the insert rod 4 and the inclined step 52 form a slope guide fit, and the insert 5 is pushed out along with the insertion of the insert rod 4. This technical scheme has realized the fixed and quick replacement of mold insert 5, very big improvement the efficiency that the mold insert 5 was changed, promoted the productivity.

On the basis of the present embodiment, the core assembly 1 includes a front core plate 11, a rear core plate 12, and at least one insert 5, where the insert 5 is embedded in the front core plate and/or the rear core plate 12; the front core plate 11, the rear core plate 12 and the insert 5 enclose to form an injection molding cavity. The insert 5 participates in forming an injection molding cavity, and the mold produces a product with information such as the model, pattern, etc. on the corresponding insert 5.

On the basis of the embodiment, the rear core plate 12 is provided with a through embedded groove, and the insert 5 is embedded in the embedded groove. The embedded setting can make the chamber of moulding plastics inseparabler, reduces the deckle edge of product. Of course, the insert 5 may be disposed between the front core plate 11 and the rear core plate 12, and the structure thereof is not limited to the description in the embodiment.

Specifically, the front half sections of the first insertion hole 31 and the second insertion hole 32 are opened on the rear mold assembly 3; the rear half sections of the first jack 31 and the second jack 32 are formed by surrounding the rear mold core plate 12 and the rear mold assembly 3. When the insert pin 4 is inserted from the second insertion hole 32, the insert pin 4 abuts against the inclined step 52 and lifts up the insert 5 in the first direction.

Of course, the direction in which the insert 5 is ejected may be other directions, such as inclined ejection, or ejection perpendicular to the first direction before removal, which is not limited to the description in this embodiment. However, since the insert 5 is provided on the rear mold unit 3 and is pushed out forward by the insert rod 4, the insert 5 can be easily taken out compared to a method of pushing out the insert 5 to the side, and the replacement efficiency can be effectively increased.

Referring to fig. 4, 5 and 6, the rod 4 is a straight rod, and the first insertion hole 31 and the second insertion hole 32 are linear insertion holes. The fixing or replacing efficiency of the insert 5 can be improved through the linear insertion holes and the straight rods, and the method is simple and direct.

It should be understood that the insert rod 4 and the two insertion holes may have other shapes, such as an arc shape, which only needs to be matched with each other to lift the insert 5, and is not limited to the description in this embodiment.

On the basis of the present embodiment, referring to fig. 1 and 3, the rear mold assembly 3 includes a base 33, a rear mold plate 34 fixedly disposed on the base 33, and an ejector plate 35 disposed between the base 33 and the rear mold plate 34 in an up-and-down manner, wherein the ejector plate 35 is connected with an ejector 36; ejector pins 36 pass through the rear mold assembly 3 and the rear core plate 12 into the injection mold cavity to eject the injection molded product upon demolding. Further, an elastic member 37 for buffering the displacement of the ejector plate 35 and a stopper rod 38 for limiting the displacement of the ejector plate 35 are provided between the rear mold plate 34 and the base 33.

During demolding, the ejector pins 36 are moved to drive the ejector pins 36 to eject the injection product, and the limiting rod 38 is used for limiting in the process. After demolding, the elastic member 37 rebounds to drive the ejector plate 35 and the ejector pins 36 to reset.

According to the injection mold with the rapid insert exchange mechanism, the insert 5 is fixed and ejected rapidly by arranging the linear bolt groove 51 and the inclined step 52 on the insert 5, so that the replacement efficiency of the insert 5 is improved, and the injection mold is suitable for various injection products.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, various changes, substitutions and alterations can be made without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. An injection mold of a quick interchangeable insert mechanism, comprising: preceding mould subassembly, mold core assembly and back mould subassembly, mold core assembly sets up between preceding mould subassembly and back mould subassembly, its characterized in that:

the mold core assembly comprises a replaceable insert; the insert is provided with a pin slot and an inclined step, and the front die assembly and/or the rear die assembly are/is provided with a first jack extending to the pin slot and a second jack extending to the inclined step; when the insert rod is inserted into the plug pin groove from the first plug hole, the insert is fixed; when the insert rod is inserted from the second jack, the insert rod is in inclined guide fit with the inclined step and jacks up the insert.

2. The quick interchangeable insert mechanism injection mold of claim 1, wherein the core assembly comprises a front core plate, a rear core plate, and at least one of the inserts embedded within the front core plate and/or the rear core plate; the front mold core plate, the rear mold core plate and the insert are enclosed to form an injection molding cavity.

3. The mold according to claim 2, wherein the rear core plate has a through-going insert groove, and the insert is embedded in the insert groove.

4. The quick interchangeable insert mechanism injection mold of claim 3, wherein the first half of the first receptacle and the second receptacle open onto the back mold assembly; the rear half sections of the first jack and the second jack are formed by surrounding the rear die core plate and the rear die assembly.

5. The quick interchangeable insert mechanism injection mold of claim 3, wherein the direction in which the front mold assembly is moved to demold or close the mold is defined as a first direction, and wherein the insert pin abuts the step and lifts the insert in the first direction when the insert pin is inserted from the second receptacle.

6. The quick interchangeable insert mechanism injection mold of claim 1, wherein the insert rod is a straight rod and the first and second receptacles are both linear receptacles.

7. The quick interchangeable insert mechanism injection mold of claim 2, wherein the back mold assembly comprises a base, a back mold plate fixedly disposed on the base, and an ejector plate movably disposed up and down between the base and the back mold plate, the ejector plate being connected with an ejector pin; the ejector pin penetrates through the rear mold assembly and the rear mold core plate to enter the injection molding cavity so as to eject an injection molding product during demolding.

8. The injection mold with an insert rapidly interchanging mechanism according to claim 7, wherein an elastic member for buffering the displacement of the ejector plate and a limiting rod for limiting the displacement of the ejector plate are arranged between the rear mold plate and the base.