CN216465899U

CN216465899U - Mould for parts machining

Info

Publication number: CN216465899U
Application number: CN202122949504.6U
Authority: CN
Inventors: 漆广喜; 洪明叶
Original assignee: Kunshan Jing Chuang Mould Co ltd
Current assignee: Kunshan Jing Chuang Mould Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-10
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a die for processing parts, which relates to the technical field of dies and comprises the following components: the fixed die is cylindrical, and a columnar cavity is arranged in the fixed die; the movable die set comprises a first spliced piece and a second spliced piece, wherein the first spliced piece and the second spliced piece are arranged in a plurality of numbers, and the first spliced piece and the second spliced piece are coaxially spliced to form a cylindrical die core with complete threads at the end part; the installed part, the cross-section of installed part is regular polygon, the installed part passes through coupling mechanism and movable mould group link, just still be equipped with the reset assembly who is used for controlling movable mould group state change on the installed part. According to the utility model, the first assembly piece and the second assembly piece are matched with the installation piece to be assembled to form the mold core, when the installation piece moves, the first assembly piece and the second assembly piece can synchronously slide and simultaneously contract inwards or expand outwards, so that the inner thread bottle cap can be conveniently demoulded and taken out.

Description

Mould for parts machining

Technical Field

The utility model relates to the technical field of dies, in particular to a die for machining parts.

Background

A plastic mould is a tool matched with a plastic forming machine in the plastic processing industry to endow plastic products with complete configuration and accurate dimension, and is a tool for producing the plastic products and consists of a plurality of parts, wherein a forming mould cavity is arranged in the tool. During injection molding, the mold is clamped on an injection molding machine, molten plastic is injected into a forming mold cavity and is cooled and shaped in the cavity, then the front mold and the rear mold are separated, a product is ejected out of the mold cavity through an ejection system and leaves the mold, finally the mold is closed again for next injection molding, and the whole injection molding process is carried out in a circulating mode.

In the food packaging industry, the production of beverage bottles needs moulds to be matched, parts with complex structures even need multi-part moulds to be produced, for example, a bottle cap with internal threads is machined, the problems of difficult demoulding, low bottle cap machining quality and the like can occur in the production of conventional plastic moulds, and due to the particularity of the internal threads, if a rotary demoulding mode is used, the internal threads of products can be deformed or burrs can be generated, so that the product quality is low

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the internal thread of a product is deformed due to the fact that demoulding difficulty possibly occurs when the internal thread product is machined in the prior art, and provides a die for machining parts.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a mold for machining a part, comprising:

the fixed die is cylindrical, and a columnar cavity is formed in the fixed die;

the movable die set comprises a first spliced piece and a second spliced piece, wherein the first spliced piece and the second spliced piece are arranged in a plurality of numbers, and the first spliced piece and the second spliced piece are coaxially spliced to form a cylindrical die core with complete threads at the end part;

the installed part, the cross-section of installed part is regular polygon, the installed part passes through coupling mechanism and movable mould group link, just still be equipped with the reset assembly who is used for controlling movable mould group state change on the installed part.

Preferably, be provided with sealed the pad in the column die cavity of cover half, sealed pad is the slope setting of flaring form outward, the column mold core outer peripheral face that the movable mould group formed is provided with the sealed arch corresponding with sealed the pad.

Preferably, a plurality of the first assembly pieces and the second assembly pieces are arranged alternately, and the side walls of the adjacent first assembly pieces and the adjacent second assembly pieces are attached.

Preferably, both side surfaces of the first assembling piece are arranged in an inclined shape which gradually shrinks inwards from the axis, and both side surfaces of the second assembling piece are arranged in an inclined shape which gradually expands outwards from the axis.

Preferably, the mounting member has a smaller diameter at one end adjacent to the stationary mold than at the other end.

Preferably, the connecting mechanism comprises a clamping strip fixedly arranged on the first assembling piece and the second assembling piece, and a clamping groove connected with the clamping strip in a sliding manner is formed in the assembling piece.

Preferably, the reset assembly includes that the fixed setting keeps away from the spliced pole of cover half one end in the installed part, spliced pole tip fixed mounting has the mounting disc, the outer movable sleeve of spliced pole is equipped with the gasket, be connected through elastic spring between mounting disc and the gasket.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, the first assembly piece and the second assembly piece are matched with the mounting piece to be assembled to form the mold core, when the mounting piece moves, the first assembly piece and the second assembly piece can synchronously slide and simultaneously retract or expand outwards, when the first assembly piece and the second assembly piece are in the maximum state, the first assembly piece and the second assembly piece are matched with the fixed mold to complete injection molding, and when the mold is opened, the second assembly piece and the fixed mold simultaneously retract, so that the internal thread of the bottle cap can be conveniently taken out, the problem that the internal thread of a product is deformed due to the fact that the demolding is difficult when the internal thread product is processed in the prior art is solved, and the processing quality of the product is higher.

Drawings

FIG. 1 is a schematic perspective view of a mold for machining a part according to the present invention;

FIG. 2 is a schematic structural diagram of a fixed die in a die for machining a part according to the present invention;

FIG. 3 is a schematic structural diagram of a first assembly member in a mold for machining parts according to the present invention;

FIG. 4 is a schematic structural diagram of a second assembly in a mold for machining parts according to the present invention;

fig. 5 is a schematic structural diagram of a mounting member in a part processing mold according to the present invention.

In the figure: 1. fixing a mold; 2. a movable module; 3. a mounting member; 4. a columnar cavity; 5. a first assembly member; 6. a second assembly; 7. a gasket; 8. sealing the protrusion; 9. clamping the strip; 10. a card slot; 11. connecting columns; 12. mounting a disc; 13. and (7) a gasket.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, a mold for processing parts comprises a fixed mold 1 and a movable mold set 2, wherein the fixed mold 1 is cylindrical, a columnar cavity 4 is arranged in the fixed mold 1, and when the mold is used, the fixed mold 1 is fixedly arranged at an extrusion opening of an injection molding machine, so that molten materials of the injection molding machine can be injected into the columnar cavity 4. The movable mould set 2 comprises a first spliced part 5 and a second spliced part 6, the first spliced part 5 and the second spliced part 6 are arranged in a plurality of modes, the end parts of the first spliced part 5 and the second spliced part 6 are spliced coaxially to form a cylindrical mould core with complete threads, and the cylindrical mould core is matched with the cylindrical mould cavity 4 to realize the processing and production of the internal thread bottle cap.

Referring to fig. 1-2, a sealing gasket 7 is arranged in a cylindrical cavity 4 of the fixed mold 1, the sealing gasket 7 is obliquely arranged in an outward expanding shape, a sealing protrusion 8 corresponding to the sealing gasket 7 is arranged on the outer peripheral surface of a cylindrical mold core formed by the movable mold group 2, and when the mold is closed, the sealing protrusion 8 on the movable mold group 2 is in contact and abutted with the sealing gasket 7 in the fixed mold 1 to form a part to complete a sealed cavity for injection molding of a product.

Referring to fig. 1, 3 and 4, the first and

second assemblies

5 and 6 are alternately arranged, and the side walls of the adjacent first and

second assemblies

5 and 6 are attached to each other, so as to facilitate the formation of a cylindrical mold core, and the first and

second assemblies

5 and 6 attached to each other can reduce the seams existing on the processed product.

Referring to fig. 3-4, the two side surfaces of the first assembled part 5 are both inclined arrangements gradually shrinking inward from the axis, and the two side surfaces of the second assembled part 6 are both inclined arrangements gradually expanding outward from the axis, so that when the mold is opened, the first assembled part 5 and the second assembled part 6 are simultaneously retracted inward, the product is taken out conveniently, the product is smoothly demoulded, the deformation of the product which may occur is reduced, and the product quality is improved.

Installed part 3, the cross-section of installed part 3 is regular polygon, and installed part 3 is connected with moving module 2 through coupling mechanism, and still is equipped with the reset assembly who is used for controlling the change of 2 states of brake module on the installed part 3.

Referring to fig. 5, the diameter of the mounting member 3 near the stationary mold 1 is smaller than that of the other end, and the first and second assembling

members

5 and 6 can be simultaneously expanded or simultaneously contracted when moved by the mounting member 3 having a non-uniform diameter at both ends.

Referring to fig. 3-5, the connecting mechanism includes a clip strip 9 fixedly disposed on the first assembly piece 5 and the second assembly piece 6, a clip groove 10 slidably connected to the clip strip 9 is disposed on the mounting piece 3, the cross-sections of the clip strip 9 and the clip groove 10 are dovetail-shaped, which is beneficial to the installation of the first assembly piece 5 and the second assembly piece 6, and effectively reduces the separation of the first assembly piece 5 and the second assembly piece 6 from the mounting piece 3.

Referring to fig. 3-5, the reset assembly comprises a connecting column 11 fixedly arranged at one end of the mounting piece 3 far away from the fixed die 1, a mounting disc 12 is fixedly arranged at the end part of the connecting column 11, a movable die set 2 is fixed on telescopic equipment to realize opening and closing of the die, a gasket 13 is movably sleeved outside the connecting column 11, the mounting disc 12 is connected with the gasket 13 through an elastic spring, under the action of the elastic spring, the gasket 13 always abuts against the end parts of the first assembled piece 5 and the second assembled piece 6, so that the first assembled piece 5 and the second assembled piece 6 tend to slide to the outermost end along a clamping groove 10 on the mounting piece 3, the first assembled piece 5 and the second assembled piece 6 are in an inward-contraction state, and can automatically contract when the die is opened, and demolding of the bottle cap is realized.

The specific working principle of the utility model is as follows:

during the use, install cover half 1 on the injection molding machine, fix mounting disc 12 on telescopic equipment, start telescopic equipment and make movable mould group 2 and cover half 1 compound die, the open end of movable mould group 2 tip and cover half 1 at this moment offsets at first, continue to support to press in the column die cavity 4 this moment, the compression of elastic spring this moment, installed part 3 inwards moves and makes first piece 5 and second piece 6 expand outward simultaneously and form the column mold core, sealed arch 8 offsets tightly with sealed 7 of packing up this moment, start the injection molding machine and accomplish and mould plastics.

Accomplish to mould plastics, behind the cooling process, the flexible equipment moves backward and carries out the die sinking, and installed part 3 moves outward this moment, and under the effect of elasticity spring, movable mould group 2 position is unchangeable, and installed part 3 moves outward, makes first piece 5 and second piece 6 contract simultaneously, makes the internal diameter of column mold core diminish, continues to remove, makes movable mould group 2 and cover half 1 separation, and the product alright drawing of patterns smoothly this moment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A mold for machining a part, comprising:

the fixed die (1) is cylindrical, and a cylindrical cavity (4) is arranged in the fixed die (1);

the movable die set (2) comprises a first spliced part (5) and a second spliced part (6), the first spliced part (5) and the second spliced part (6) are arranged in a plurality, and the first spliced part (5) and the second spliced part (6) are spliced coaxially to form a cylindrical die core with complete threads at the end part;

the mounting part (3), the cross-section of mounting part (3) is regular polygon, mounting part (3) are connected with movable mould group (2) through coupling mechanism, just still be equipped with the subassembly that resets that is used for controlling brake module group (2) state change on mounting part (3).

2. The die for machining the parts as claimed in claim 1, wherein a sealing gasket (7) is arranged in the cylindrical cavity (4) of the fixed die (1), the sealing gasket (7) is obliquely arranged in an outward expanding shape, and a sealing protrusion (8) corresponding to the sealing gasket (7) is arranged on the outer peripheral surface of the cylindrical die core formed by the movable die set (2).

3. A mold for machining a part according to claim 1, wherein a plurality of the first and second assembling members (5, 6) are alternately arranged, and side walls of the adjacent first and second assembling members (5, 6) are abutted.

4. A mold for machining a part according to claim 3, wherein both side surfaces of the first piece member (5) are inclined so as to gradually recede from the axis outward, and both side surfaces of the second piece member (6) are inclined so as to gradually expand from the axis outward.

5. A die for machining parts according to claim 1, wherein the mounting member (3) has a smaller diameter at one end adjacent to the stationary die (1) than at the other end.

6. The mold for processing the part according to claim 1, wherein the connecting mechanism comprises a clip strip (9) fixedly arranged on the first assembly member (5) and the second assembly member (6), and the mounting member (3) is provided with a clip groove (10) slidably connected with the clip strip (9).

7. The die for the machining of parts as claimed in claim 1, wherein the resetting component comprises a connecting column (11) fixedly arranged at one end, far away from the fixed die (1), of the mounting piece (3), a mounting disc (12) is fixedly mounted at the end part of the connecting column (11), a gasket (13) is movably sleeved outside the connecting column (11), and the mounting disc (12) is connected with the gasket (13) through an elastic spring.