CN213006329U

CN213006329U - Mold structure capable of rapidly replacing insert and pitched roof

Info

Publication number: CN213006329U
Application number: CN202021725860.9U
Authority: CN
Inventors: 汪大艮; 曾祥波; 韦建滔
Original assignee: Suzhou Jinghuisi Mould Co ltd
Current assignee: Suzhou Jinghuisi Mould Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-20
Anticipated expiration: 2030-08-18

Abstract

The utility model relates to a mould structure of quick replacement mold insert and oblique top, including back mould benevolence, subassembly A, left side oblique top ejector pad, right side oblique top ejector pad, a screw, the packing ring, the thimble board, thimble bottom plate, back mould bottom plate and subassembly B, back mould bottom plate sets up below back mould benevolence, and open the through-hole that has the dismouting screw on the back mould bottom plate, by supreme thimble bottom plate and the thimble board of having set gradually down on the back mould bottom plate, and open the through-hole that has the dismouting screw on thimble bottom plate, still open the step hole on the thimble board, the packing ring sets up in the step hole on the thimble board, the lower extreme of left side oblique top ejector pad and right side oblique top ejector pad passes the thimble board and fixes on thimble bottom plate, subassembly A or subassembly B can assemble in same vice back mould, the two is changed each other. The utility model discloses realize that the different same kind of local structure moulds the injection moulding and the drawing of patterns of a product, both saved the time of back mould dismouting, avoided the damage that back mould dismouting probably appears again, be favorable to ensureing the life of mould, reduce the maintenance cost.

Description

Mold structure capable of rapidly replacing insert and pitched roof

Technical Field

The utility model belongs to the technical field of injection mold, specific saying so relates to a mould structure of quick replacement mold insert and pitched roof.

Background

In order to meet different requirements of people, the design mode that the structure of one plastic product is locally modified and adjusted to derive another product is widely used, so that the service cycle of the plastic product is prolonged, and the design requirements of standardization and modularization are met. However, for the injection mold of the dedicated device, one mold and one plastic part are well known, and although one mold with multiple cavities and N + N molds are ubiquitous, the premise is that the structures of the plastic parts are either completely the same or mirror images of each other for use in a group, so even if there is a difference in only local structures of two plastic parts, a common practice is to require two molds to complete injection molding, which results in low mold economy or low cost performance. If the insert replacement mode is adopted to realize injection molding production of two plastic parts with local structure difference on one mold, the difficulties often faced include: replacing the front mold insert, and judging whether the appearance surface quality of the plastic part is accepted by a customer; when the rear mold insert is replaced, particularly the rear mold insert is also provided with the inclined top, the whole rear mold part needs to be disassembled and assembled, usually 1 to 2 days or even longer, and the injection molding production plan is influenced; the disassembly and assembly type mold replacement insert is easy to cause damage to the mold, and the service life of the mold is shortened.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a more mould structure of quick replacement mold insert and oblique top, this structure is assembled respectively in same pair of back mould with the mold insert that two sets of local shaping structures are inequality and oblique top subassembly A, B to realize that a pair mould moulds plastics a piece product of local two kinds of structural style.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model relates to a mould structure for rapidly replacing an insert and a lifter, which comprises a rear mould core, a component A, a left lifter, a right lifter, a screw, a gasket, an ejector plate, an ejector bottom plate, a rear mould bottom plate and a component B, wherein the rear mould bottom plate is arranged below the rear mould core and is provided with a through hole for assembling and disassembling the screw, an ejector pin base plate and an ejector pin plate are sequentially arranged on the back die base plate from bottom to top, through holes for assembling and disassembling screws are arranged on the ejector pin base plate, the ejector plate is also provided with a step hole, the gasket is arranged in the step hole on the ejector plate, the lower ends of the left inclined ejector block and the right inclined ejector block penetrate through the ejector plate and are fixed on the ejector base plate, the component A and the component B can be assembled in the same pair of rear dies and are replaced with each other, namely, the component A and the component B can be assembled in the rear dies one by one, and the two components can be replaced with each other.

The utility model discloses a further improvement lies in: the assembly A is inserted into the rear mold from the top surface of the rear mold core, the molding surfaces of the insert A, the left lifter A, the right lifter A and the rear mold core form a complete plastic part internal structure, the bottom surfaces of the left lifter A and the right lifter A are respectively contacted with the top surfaces of the left lifter push block and the right lifter push block, the lower end of the inner pull rod A is inserted into the step hole of the ejector plate and is fixed on the ejector plate through a screw, the bottom surface of the inner pull rod A is contacted with the top surface of the gasket, and the top surface of the inner pull rod A is fixed with the insert A.

The utility model discloses a further improvement lies in: the assembly B is inserted into the rear mold from the top surface of the rear mold core, the molding surfaces of the insert B, the left lifter B, the right lifter B and the rear mold core form a complete internal structure of the plastic part, the bottom surfaces of the left lifter B and the right lifter B are respectively contacted with the top surfaces of the left lifter push block and the right lifter push block, the lower end of the inner pull rod B is inserted into the step hole of the ejector plate and is fixed on the ejector plate through a screw, the bottom surface of the inner pull rod B is contacted with the top surface of the gasket, and the top surface of the inner pull rod B is fixed with the insert B.

The utility model discloses a further improvement lies in: the inner return pull rod A and the inner return pull rod B are identical in structure and size.

The utility model has the advantages that:

(1) the utility model discloses novel structure: the two sets of components A, B are assembled by inserts and the lifter with different structural forms, under the condition of not dismounting the back mould, the injection moulding and demoulding of the same plastic product with different local structures are realized by replacing the components, in addition, the lifter and the lifter push block adopt a surface contact connection mode, conditions are created for the convenient and rapid replacement of the components, and the continuous and efficient requirements of injection moulding production are favorably met;

(2) the utility model discloses it is convenient, swift to change: the replacement and assembly only needs to pass through the through holes in the rear mold base plate and the ejector pin base plate, the screws for fixing the inner pull rods are unscrewed, and then the components in the rear mold are ejected out, however, the replaced components are loaded into the rear mold from the top surface of the rear mold core, and the screws are screwed again for fixing the inner pull rods to the ejector pin plate, so that the time for disassembling and assembling the rear mold is saved, the possible damage of disassembling and assembling the rear mold is avoided, the service life of the mold is favorably ensured, and the maintenance cost is reduced.

(3) The utility model discloses the action is stable, reliable: during ejection, the insert and the pitched roof are respectively subjected to synchronous thrust of the inner return pull rod and the pitched roof pushing block, the insert is ejected upwards, the pitched roof is ejected obliquely along the pitched roof hole, the demoulding ejection of the upper back-off structure of the plastic product is realized, and the quality of the plastic product is favorably ensured; when resetting, the inner pull rod pulls the insert to reset downwards, the inclined top resets obliquely along the inclined top hole through the connecting structure between the inclined top and the insert, and the bottom surface of the inclined top is always in contact with the top surface of the inclined top pushing block.

Drawings

Fig. 1 is a schematic structural view of the assembly a of the present invention mounted on the back mold core.

Fig. 2 is a schematic structural view of the utility model assembly B mounted on the back mold core.

Fig. 3 is a schematic structural diagram of the assembly a of the present invention.

Fig. 4 is a schematic structural diagram of the assembly B of the present invention.

Fig. 5 is a schematic structural diagram of the same product with locally different structural features.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

As shown in fig. 1-5, the utility model relates to a mold structure for fast replacing an insert and an inclined ejector, the mold structure comprises a rear mold core 1, a component a2, a left inclined ejector 3, a right inclined ejector 4, a screw 5, a gasket 6, an ejector plate 7, an ejector base plate 8, a rear mold base plate 9 and a component B10, the rear mold base plate 9 is arranged below the rear mold core 1, through holes for assembling and disassembling the screw 5 are arranged on the rear mold base plate 9, the ejector base plate 8 and the ejector plate 7 are sequentially arranged on the rear mold base plate 9 from bottom to top, through holes for assembling and disassembling the screw 5 are arranged on the ejector base plate 8, a step hole is also arranged on the ejector plate 7, the gasket 6 is arranged in the step hole on the ejector plate 7, the lower ends of the left inclined ejector 3 and the right inclined ejector 4 pass through the ejector plate 7 and are fixed on the ejector base plate 8, the assembly a2 and the assembly B10 can be assembled into the same secondary rear mold, and the assembly a and the assembly B are replaced with each other.

The component A2 is inserted into a rear mold from the top surface of the rear mold core 1, the molding surfaces of the insert A2-2, the left lifter A2-1, the right lifter A2-3 and the rear mold core 1 form a complete internal structure of a plastic part, the bottom surfaces of the left lifter A2-1 and the right lifter A2-3 are respectively contacted with the top surfaces of the left lifter push block 3 and the right lifter push block 4, the lower end of the inner pull rod A2-4 is inserted into the stepped hole of the ejector plate 7 and is fixed on the ejector plate 7 through the screw 5 by the inner pull rod A2-4, the bottom surface of the inner pull rod A2-4 is contacted with the top surface of the gasket 6, the top surface of the inner pull rod A2-4 and the insert A2-2 fix the component B10 which is inserted into the rear mold from the top surface of the rear mold core 1, and the molding surfaces of the insert B10-2, the left lifter B10-1, the right lifter B10-3 and the rear mold core 1 form a complete internal structure of the plastic part, the bottom surfaces of the left inclined top B10-1 and the right inclined top B10-3 are respectively contacted with the top surfaces of the left inclined top pushing block 3 and the right inclined top pushing block 4, the lower end of an inner pull-back rod B10-4 is inserted into a step hole of the ejector plate 7, the inner pull-back rod B10-4 is fixed on the ejector plate 7 through the screw 5, the bottom surface of the inner tie-back rod B10-4 is in contact with the top surface of the gasket 6, the top surface of the inner tie-back rod B10-4 is fixed with the insert B10-2, and the inner tie-back rod A2-4 and the inner tie-back rod B10-4 are identical in structure and size.

The utility model discloses a theory of operation is:

two sets of components A and B are configured on the insert and the lifter rod with different local molding surface structures, each set of components can be assembled into the rear mold from the top surface of the rear mold core, and a plastic part product with two local structural forms of injection molding of a pair of molds is realized, wherein one end of an inner pull rod A2-4 is fixed with the insert A, one end of an inner pull rod B10-4 is fixed with the insert B, the other end of the inner pull rod A2-4 or the inner pull rod B10-4 is fixed on the ejector plate through screws, and the bottom surfaces of the left lifter and the right lifter of the insert A and the insert B are in contact with the top surface of a lifter block fixed on the ejector plate.

Taking the replacement component A as an example, on the premise of not disassembling the rear mold, when replacing, only the screw 5 which is fixed with the inner tie rod A2-4 on the thimble plate is required to pass through the through holes on the bottom plate of the rear mold and the thimble bottom plate, the screw is unscrewed, the insert A, the left lifter A2-1 and the right lifter A2-3 are ejected upwards, the insert B, the left lifter B10-1 and the right lifter B10-3 of the component B are installed downwards from the top surface of the rear mold core again, and then the screw is fixed with the newly installed inner tie rod B.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a quick replacement mold insert and die structure of pushing up to one side, die structure includes back mould benevolence (1), subassembly A (2), left oblique ejector pad (3), right oblique ejector pad (4), screw (5), packing ring (6), thimble board (7), thimble bottom plate (8), back mould bottom plate (9) and subassembly B (10), its characterized in that: the rear die base plate (9) is arranged below the rear die core (1), the rear die base plate (9) is provided with through holes for assembling and disassembling the screws (5), the rear die base plate (9) is sequentially provided with an ejector pin base plate (8) and an ejector pin plate (7) from bottom to top, the ejector pin base plate (8) is provided with the through holes for assembling and disassembling the screws (5), the ejector pin plate (7) is further provided with a step hole, the gasket (6) is arranged in the step hole in the ejector pin plate (7), the lower ends of the left inclined ejector block (3) and the right inclined ejector block (4) penetrate through the ejector pin plate (7) to be fixed on the ejector pin base plate (8), and the component A (2) or the component B (10) can be assembled in the same pair of rear dies and are replaced with each other.

2. The quick-change insert and lifter die structure of claim 1, wherein: the component A (2) is inserted and assembled into the rear die from the top surface of the rear die core (1), and the molding surfaces of the insert A (2-2), the left lifter A (2-1), the right lifter A (2-3) and the rear mold core (1) form a complete internal structure of the plastic part, the bottom surfaces of the left inclined ejector A (2-1) and the right inclined ejector A (2-3) are respectively contacted with the top surfaces of the left inclined ejector push block (3) and the right inclined ejector push block (4), the lower end of the inner pull rod A (2-4) is inserted into a step hole of the ejector plate (7) and the inner pull rod A (2-4) is fixed on the ejector plate (7) through the screw (5), the bottom surface of the inner tie-back rod A (2-4) is contacted with the top surface of the gasket (6), and the top surface of the inner tie-back rod A (2-4) is fixed with the insert A (2-2).

3. The quick-change insert and lifter die structure of claim 1, wherein: the component B (10) is inserted and assembled into the rear die from the top surface of the rear die core (1), and the molding surfaces of the insert B (10-2), the left lifter B (10-1), the right lifter B (10-3) and the rear mold core (1) form a complete internal structure of the plastic part, the bottom surfaces of the left inclined top B (10-1) and the right inclined top B (10-3) are respectively contacted with the top surfaces of the left inclined top pushing block (3) and the right inclined top pushing block (4), the lower end of the inner pull rod B (10-4) is inserted into the stepped hole of the ejector plate (7) and the inner pull rod B (10-4) is fixed on the ejector plate (7) through the screw (5), the bottom surface of the inner pull-back rod B (10-4) is in contact with the top surface of the gasket (6), and the top surface of the inner pull-back rod B (10-4) is fixed with the insert B (10-2).

4. The quick-change insert and lifter die structure of claim 1, wherein: the inner tie rod A (2-4) and the inner tie rod B (10-4) are identical in structure and size.