CN213137653U

CN213137653U - Compact core-pulling mechanism of mold

Info

Publication number: CN213137653U
Application number: CN202021742508.6U
Authority: CN
Inventors: 叶长春; 陈凌宇; 黄承焕
Original assignee: Xiamen Jinyue Electrical Appliance Co ltd
Current assignee: Xiamen Jinyue Electrical Appliance Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-05-07
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a mechanism of loosing core of mould compact, terrace die including the movable mould side still includes little slider, ejector pin, sets up in leading of movable mould smooth mold insert and sets up in the mold insert that compresses tightly of cover half, and little slider is equipped with the convex part that is used for forming injection molding lateral wall through-hole towards the one end of terrace die, and this little slider slides and sets up on leading smooth mold insert, during the compound die, compresses tightly little slider by compressing tightly the mold insert, during the die sinking, pushes away little slider by the ejector pin, makes little slider slide along the direction of keeping away from the terrace die. The utility model discloses a mechanism of loosing core structure is very simple, and the overall arrangement is compact, and is small, is favorable to increasing the chamber number of mould, is favorable to reducing the cost of manufacture of mould.

Description

Compact core-pulling mechanism of mold

Technical Field

The utility model relates to the technical field of mold, especially, relate to a mechanism of loosing core of mould compact.

Background

At present, when a product with a hole in a side wall is injected by a mold, a forming rod is generally matched with a male mold to form a through hole in the side wall of the product, the forming rod is arranged on a slide block, the slide block is pressed by a pressing block during mold closing, and an inclined guide block is adopted to drive the slide block and the forming rod on the slide block to move during mold opening, so that one end of the forming rod leaves the product and then the product is pushed out. Therefore, the core-pulling mechanism comprises a forming rod, a sliding block, an inclined guide block and the like, the whole structure is complex, the size is large, the increase of the number of the die cavities is not facilitated, and the manufacturing cost of the die is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a compact mechanism of loosing core of mould to the technical problem that prior art exists.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a compact mechanism of loosing core of mould, includes the terrace die on the movable mould, still includes little slider, ejector pin, sets up in leading smooth mold insert of movable mould and sets up in the mold insert that compresses tightly of cover half, and the one end that little slider faced the terrace die is equipped with the convex part that is used for forming injection molding lateral wall through-hole, and this little slider slides and sets up on leading smooth mold insert, and during the compound die, compresses tightly little slider by compressing tightly the mold insert, and during the die sinking, the little slider of ejector pin top push-push makes little slider slide along the direction of keeping.

Furthermore, a chute inclined towards one side where the male die is located is arranged in the small sliding block, the ejector rod is arranged on the fixed die in a vertically movable mode, and the top of the ejector rod is inserted into the chute of the small sliding block and is matched with the inclined surface of the chute in a pushing mode.

Furthermore, the top of the ejector rod is in a conical tip shape.

Furthermore, the top surface of the small sliding block is provided with a first inclined surface inclining towards one side where the male die is located, the bottom of the pressing insert is provided with a second inclined surface matched with the first inclined surface, and the first inclined surface is matched and attached with the second inclined surface in a die closing state.

Furthermore, the slide guiding insert is provided with a sliding groove with an inverted T-shaped cross section, the bottom of the small sliding block is provided with a sliding part matched with the sliding groove, and the sliding part is arranged in the sliding groove in a sliding manner.

Furthermore, the number of the small sliding blocks, the ejector rods, the guide sliding inserts and the pressing inserts is a plurality, and the ejector rods, the guide sliding inserts and the pressing inserts are all in one-to-one correspondence with the small sliding blocks.

Furthermore, the number of the small sliding blocks, the ejector rods, the guide sliding inserts and the pressing inserts is two, and the two small sliding blocks are located on two opposite sides of the male die.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. because the utility model discloses still include little slider, ejector pin, set up in leading of movable mould smooth mold insert and set up in the mold insert that compresses tightly of cover half, little slider is equipped with the convex part that is used for forming injection molding lateral wall through-hole towards the one end of the terrace die on the cope match-plate pattern, and this little slider slides and sets up on leading smooth mold insert, during the compound die, compresses tightly little slider by compressing tightly the mold insert, during the die sinking, pushes away little slider by the ejector pin top, makes little slider slide along the direction of keeping away from the terrace die, makes the utility model discloses a mechanism of loosing core structure is very simple, and overall arrangement is compact, and is small to be favorable to increasing the chamber number.

2. The small sliding block is internally provided with a chute inclined towards one side of the male die, the ejector rod is arranged on the movable die in a vertically movable mode, and the top of the ejector rod is inserted into the chute of the small sliding block and is in pushing fit with the inclined surface of the chute, so that the ejector rod can move in the vertical direction to push the small sliding block, and the whole structure is further more compact.

3. The small sliding block is provided with the first inclined surface, and the pressing insert is provided with the second inclined surface, so that the small sliding block can be driven by the pressing insert to reset during die assembly, and parts such as a reset spring and the like do not need to be additionally arranged.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

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

fig. 3 is a sectional view taken along line a-a of the present invention.

Detailed Description

An embodiment, please refer to fig. 1-3, the utility model discloses a mechanism of loosing core of mould compact, terrace die 1 on the movable mould still includes little slider 2, ejector pin 5, sets up in leading of movable mould smooth mold insert 4 and sets up in the mold insert 3 that compresses tightly of cover half, and little slider 2 is equipped with the convex part 22 that is used for forming injection molding lateral wall through-hole towards the one end of terrace die 1, and this little slider 2 slides and sets up on leading smooth mold insert 4, during the compound die, compresses tightly little slider 2 by compressing tightly mold insert 3, during the die sinking, pushes away little slider 2 by ejector pin 5 top, makes little slider 2 slide along the direction of keeping away from terrace die 1.

In this embodiment, the small slide block 2 is provided with a chute 23 inclined toward the side where the male die 1 is located, the ejector rod 5 is provided on the movable die so as to be movable up and down, the top of the ejector rod 5 is tapered, and the top of the ejector rod 5 is inserted into the chute 23 of the small slide block 2 and is in pushing fit with the inclined surface of the chute 23. The driving force for the up-and-down movement of the ram 5 can be realized by an additional driving mechanism, which can be a pneumatic mechanism (such as an air cylinder), a hydraulic mechanism (such as a hydraulic cylinder), or an electric mechanism (such as a motor).

In this embodiment, the slide guiding insert 4 is provided with a sliding groove 41 having an inverted T-shaped cross section, the bottom of the small slide block 2 is provided with a sliding portion 21 adapted to the sliding groove 41, and the sliding portion 21 is slidably disposed in the sliding groove 41.

In this embodiment, the top surface of the small slide block 2 is provided with a first inclined surface 24 inclined towards one side where the male die 1 is located, the bottom of the pressing insert 3 is provided with a second inclined surface 31 adapted to the first inclined surface 24, and in a die assembly state, the first inclined surface 24 is adapted to the second inclined surface 31.

In this embodiment, the number of the small sliding blocks 2, the ejector rods 5, the guide sliding inserts 4 and the pressing inserts 3 is several, and the ejector rods 5, the guide sliding inserts 4 and the pressing inserts 3 are all in one-to-one correspondence with the small sliding blocks 2. Specifically, the number of the small sliding blocks 2, the ejector rods 5, the guide sliding inserts 4 and the pressing inserts 3 is two, and the two small sliding blocks 2 are located on two opposite sides of the male die 1.

The utility model discloses a mechanism of loosing core of mould compact, during the compound die, when each second inclined plane 31 that compresses tightly mold insert 3 and the first inclined plane 24 contact of corresponding little slider 2, along with the movable mould continues to remove towards the direction of cover half, second inclined plane 31 top pushes away first inclined plane 24, makes each little slider 2 towards the direction of terrace die 1 and slides, until its convex part 22 and terrace die 1 contact. When the die is matched in place, the female die on the fixed die is matched with the male die 1 inside and outside, and meanwhile, the second inclined surfaces 31 of the pressing inserts 3 are matched and attached with the first inclined surfaces 24 of the corresponding small sliding blocks 2, so that the small sliding blocks 2 are limited to slide towards one side far away from the male die 1. And (3) after the injection molding is finished, opening the mold, moving the movable mold towards the direction away from the fixed mold, then moving each ejector rod 5 towards the small slide block 2 respectively, and pushing each small slide block 2 to enable the small slide block 2 to slide towards the side away from the male mold 1 along the slide guide insert 4 until the convex part 22 on the small slide block 2 is separated from the product part. And finally, pushing out the injection molded product parts, and resetting each ejector rod 5.

The utility model discloses a mechanism of loosing core of mould compact, it adopts little slider 2, ejector pin 5, leads smooth mold insert 4 and compresses tightly mold insert 3 and replace prior art's shaping pole, slider, oblique guide block etc. and overall structure is very simple, and the overall arrangement is compact, and is small to be favorable to increasing the chamber number of mould, be favorable to reducing the cost of manufacture of mould.

The above embodiments are only used to further explain the utility model discloses a compact core-pulling mechanism for mold, but the utility model discloses do not limit to the embodiment, all according to the utility model discloses a technical entity does any simple modification, equivalent change and modification to above embodiments, all fall into the protection scope of the technical scheme of the utility model.

Claims

1. The utility model provides a compact mechanism of loosing core of mould, includes the terrace die on the movable mould, its characterized in that: the small slide block is arranged on the guide slide insert in a sliding mode, the pressing insert is arranged on the fixed die, a convex part used for forming a through hole in the side wall of an injection molding part is arranged at one end, facing the male die, of the small slide block, the small slide block is arranged on the guide slide insert in a sliding mode, the pressing insert presses the small slide block in a pressing mode during die assembly, and the ejector rod pushes the small slide block to enable the small slide block to slide along the direction far away from the male die during die opening.

2. The mold compact core pulling mechanism of claim 1, wherein: the small sliding block is internally provided with a chute inclined towards one side of the male die, the ejector rod is arranged on the movable die in a vertically movable mode, and the top of the ejector rod is inserted into the chute of the small sliding block and is matched with the inclined surface of the chute in a pushing mode.

3. The mold compact core-pulling mechanism according to claim 1 or 2, characterized in that: the top of the ejector rod is in a conical tip shape.

4. The mold compact core pulling mechanism of claim 1, wherein: the top surface of the small sliding block is provided with a first inclined surface inclining towards one side where the male die is located, the bottom of the pressing insert is provided with a second inclined surface matched with the first inclined surface, and the first inclined surface is matched and attached with the second inclined surface in a die closing state.

5. The mold compact core pulling mechanism of claim 1, wherein: the sliding guide insert is provided with a sliding groove with an inverted T-shaped cross section, the bottom of the small sliding block is provided with a sliding part matched with the sliding groove, and the sliding part is arranged in the sliding groove in a sliding mode.

6. The mold compact core pulling mechanism of claim 1, wherein: the number of the small sliding blocks, the ejector rods, the guide sliding inserts and the pressing inserts is a plurality, and the ejector rods, the guide sliding inserts and the pressing inserts correspond to the small sliding blocks one to one.

7. The mold compact core pulling mechanism of claim 6, wherein: the number of the small sliding blocks, the ejector rods, the guide sliding inserts and the pressing inserts is two, and the two small sliding blocks are located on two opposite sides of the male die.