Die for machining ultrathin-wall relay shell
By introducing compensation parts and external protrusions into the mold, and combining the movement of the fixed mold and the moving mold, the problem of insufficient strength of the long sidewalls of the ultra-thin wall relay housing is solved, achieving efficient and low-cost injection molding and ensuring product quality.
Patent Information
- Application Number
- CN202520211158.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing technologies cannot effectively solve the problem of insufficient strength of the long sidewalls of ultra-thin wall relay housings, resulting in concave long sidewalls during injection molding, which fails to meet product process requirements.
Design a mold for processing ultra-thin wall relay housings. The mold has a structure with a compensation part and an external protrusion in the cavity. The deformation is controlled by the compensation effect of the external protrusion. Combined with the coordinated movement of the fixed mold and the moving mold, the mold can be closed and fixed and the injection can be stabilized.
It improves the injection molding success rate, ensures that the long sidewalls of the relay housing do not undergo significant deformation, meets installation requirements, reduces manufacturing costs, avoids demolding burrs, and achieves efficient processing of ultra-thin walls.
Smart Images
Figure CN223750138U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the mould field, concretely relates to a mould for processing the mould of super thin wall relay shell. BACKGROUND
[0002] Relay shell is an important component for fixing other components of relay. With the development of intelligentization and refinement, the requirement of relay shell is higher and higher, the size of relay shell of existing product is 30mm*5mm*16mm, the relay shell is provided with a chamber, the chamber is downward opening, the chamber is used for fixing other components of relay, the wall thickness of relay shell is 0.2-0.4mm. Moreover, only the inner wall top surface of chamber is provided with reinforcing rib in the process requirement of product, but the reinforcing rib does not extend to the lower opening, so that the strength of long side wall (30mm*16mm) of relay shell is not enough.
[0003] This kind of relay shell cannot increase the strength of long side wall by extending reinforcing rib due to the process requirement of product, and the wall thickness needs to realize the design of super thin, which causes a big problem to injection molding processing. Using conventional processing mode, the long side wall of relay shell produced after mold cooling is concave to the chamber, resulting in unqualified product. The skilled person in the art finds that the problem lies in that the relay shell is thin and the strength is not enough. SUMMARY
[0004] Therefore, the technical problem to be solved by the utility model is how to meet the process requirement of product and solve the problem of long side wall concave. To this end, a mould for processing super thin wall relay shell comprises:
[0005] Cavity, the cavity is used for forming relay shell;
[0006] Core block, both sides of the core block are provided with outer convex parts, the outer convex parts protrude outward, and the outer convex parts are used for forming the inner wall of the relay shell.
[0007] The inner wall of the cavity is provided with a compensation part, and the compensation part is arranged correspondingly with the outer convex part.
[0008] The outer convex part is an arc surface or an inclined surface.
[0009] When the outer convex part is an arc surface, the compensation part is an inner concave arc surface, and the outer convex size of the outer convex part is greater than the inner concave size of the compensation part.
[0010] The outer convex size of the outer convex part is obtained by Moldex3D simulation.
[0011] Also include fixed mold, movable mold, the fixed mold is fixed with two inclined blocks, the movable mold is fixed with first slider, second slider, first insert, second insert, the first slider is linked with the first insert, the second slider is linked with the second insert, the first insert and the second insert cooperate to form a part of the cavity, when the fixed mold cooperates with the movable mold, two inclined blocks drive corresponding first slider, second slider to move towards each other respectively.
[0012] The first slider is provided with a first inclined groove, and the second slider is provided with a second inclined groove, and the first inclined groove and the second inclined groove are matched with the inclined blocks respectively.
[0013] The first slider and the first insert are connected by bolts or buckles, and the second slider and the second insert are connected by bolts or buckles.
[0014] One of the first insert and the second insert is provided with a positioning groove, and the other of the first insert and the second insert is provided with a positioning block matched with the positioning groove.
[0015] The technical scheme of the utility model has the following advantages:
[0016] 1. The utility model provides a mould for processing super thin wall relay shell, through the setting of the outer convex part, forms an outward compensation effect, after product forming, through the surplus compensation of the outer convex, the deformation of the inner concave is compensated, thereby the long side wall of the relay shell does not have great deformation, satisfies normal installation demand, finally realizes the processing of super thin wall.
[0017] 2. The utility model provides a mould for processing super thin wall relay shell, the setting of the compensation part increases deformation control effect, improves injection molding success rate. In addition, it can also be compensated by controlling temperature.
[0018] 3. The utility model provides a mould for processing super thin wall relay shell, the setting of the outer small and the inner big makes the long side wall after injection molding more full.
[0019] 4. The utility model provides a mould for processing super thin wall relay shell, by inputting corresponding parameters into the software, forming analog calculation obtains corresponding numerical value, can greatly reduce manufacturing cost. In addition, it can also be tested by artificial experience many times.
[0020] 5. The utility model provides a mould for processing the shell of ultrathin wall relay, when the fixed mould and the movable mould cooperate, form the opposite movement between the first insert and the second insert, to realize the clamping of the mould, form a cavity finally, realize the processing effect finally through the injection of colloid, relative to other demolding mode, this kind of demolding, will not produce burr phenomenon, and the processing effect is better.
[0021] 6. The utility model provides a mould for processing the shell of ultrathin wall relay, the first slider drives the first insert movement, and the second slider drives the second insert movement, forms the effect of stable movement.
[0022] 7. The utility model provides a mould for processing the shell of ultrathin wall relay, when the first insert and the second insert move to the position, the positioning block cooperates with the positioning slot, forms the limitation of position, prevents excessive movement. DRAWINGS
[0023] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0024] Figure 1 The structure schematic view of the mould for processing the shell of ultrathin wall relay provided by the utility model is provided;
[0025] Figure 2 The sectional view of the mould for processing the shell of ultrathin wall relay provided by the utility model is provided;
[0026] Figure 3 The sectional view of the mould for processing the shell of ultrathin wall relay provided by the utility model is provided;
[0027] Figure 4 The sectional view of the mould for processing the shell of ultrathin wall relay provided by the utility model is provided;
[0028] Figure 5 The structure schematic view of the core block provided by the utility model is provided;
[0029] Figure 6 The cooperation schematic view of the outer convex part and the compensation part provided by the utility model is provided;
[0030] Figure 7 The structure schematic view of the relay shell provided by the utility model is provided.
[0031] Mark explanation:
[0032] 100, cavity; 11, relay housing; 12, fixed mold; 13, movable mold; 14, core block; 15, first slider; 16, second slider; 17, first insert; 18, second insert; 19, positioning groove; 20, positioning block; 141, outer protrusion; 101, compensation part; 121, inclined block; 151, first inclined groove; 161, second inclined groove. DETAILED DESCRIPTION
[0033] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0034] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0035] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0036] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.
[0037] Embodiment 1
[0038] The present embodiment provides a mold for processing an ultra-thin-wall relay housing, as shown in the accompanying drawings, comprising: Figures 1-7
[0039] Cavity 100, cavity 100 is used for forming relay housing 11, here cavity 100 is specifically formed by cooperating fixed mold 12 and movable mold 13.
[0040] The core block 14 partially extends to the cavity 100, and the outer side of the core block 14 is used to form the inner wall of the relay shell 11, that is, to form a hollow effect, that is, to form a cavity of the relay shell 11. The two side faces of the core block 14 are provided with an outer protrusion 141, which is located on the long side of the core block 14. The outer protrusion 141 protrudes outward and is used to form the inner wall of the relay shell 11. Through the setting of the outer protrusion 141, an outward compensation effect is formed. After the product is formed, the amount of deformation of the inner recess is compensated by the excess amount of the outer protrusion, so that the long side wall of the relay shell 11 does not deform greatly, meets the normal installation requirements, and finally realizes the processing of the ultra-thin wall.
[0041] Specifically, as shown in the accompanying drawings, Figure 6 The inner wall of the cavity 100 is provided with a compensation portion 101, which is correspondingly arranged with the outer protrusion 141, that is, one compensation portion 101 corresponds to one outer protrusion 141. After the glue is injected and cooled, the compensation portion 101 and the outer protrusion 141 are arranged on the two sides of the long side wall of the shell. The setting of the compensation portion 101 increases the deformation control effect and improves the success rate of injection molding. In addition, compensation can also be achieved by controlling the temperature.
[0042] Specifically, the outer protrusion 141 is an arc surface or an inclined surface. When the outer protrusion 141 is an arc surface, the size of the outer protrusion is 2-10 filaments. When the outer protrusion 141 is an inclined surface, the inclination angle is 0.1°-0.8°. The specific values can be adjusted according to actual needs.
[0043] Specifically, as shown in the accompanying drawings, Figure 6 When the outer protrusion 141 is an arc surface, the compensation portion 101 is an inner recess arc surface, that is, an outer protrusion and an inner recess are matched. The size of the outer protrusion 141 is larger than the size of the inner recess of the compensation portion 101. The setting of the outer small and the inner large makes the long side wall after injection molding more full. It should be noted that due to the size of the relay shell 11 and the thickness of the side wall, the size of the outer protrusion and the size of the inner recess are both a few filaments, and the specific values can be adjusted according to actual needs. In this embodiment, in order to more intuitively and visually display the corresponding structure, a simple schematic diagram is used for description (since the bending degree is very small, the drawing will be directly displayed as a line approximately perpendicular to the bottom surface of the relay shell 11).
[0044] Specifically, the size of the outer protrusion 141 is obtained by simulation through Moldex3D software. By inputting the corresponding parameters into the software, the corresponding values are obtained through simulation calculation, which can greatly reduce the manufacturing cost. In addition, it can also be tested by artificial experience many times.
[0045] Specifically, as shown in the accompanying drawings, Figures 2-4As shown, the fixed mold 12 is fixed with two inclined blocks 121, and the two inclined blocks 121 are symmetrically arranged. The movable mold 13 is fixed with a first sliding block 15, a second sliding block 16, a first insert 17, and a second insert 18. The first sliding block 15 is linked with the first insert 17, and the second sliding block 16 is linked with the second insert 18. The first insert 17 and the second insert 18 cooperatively form part of the cavity 100. When the fixed mold 12 cooperates with the movable mold 13, the two inclined blocks 121 respectively drive the corresponding first sliding block 15 and the second sliding block 16 to move towards each other, so that the first insert 17 and the second insert 18 move towards each other, that is, the first insert 17 moves towards the second insert 18, and the second insert 18 moves towards the first insert 17. When the fixed mold 12 cooperates with the movable mold 13, the first insert 17 and the second insert 18 are formed to move towards each other, so as to realize the clamping of the mold, and finally form a cavity 100. Through injection of the gel, the processing effect is finally realized. Compared with other demolding modes, this demolding mode will not cause burr and other phenomena, and the processing effect is better. Two compensation parts 101 are respectively arranged on the opposite surfaces of the first insert 17 and the second insert 18.
[0046] Specifically, as shown in the accompanying drawings, Figures 2-4 The first sliding block 15 is provided with a first inclined groove 151, and the second sliding block 16 is provided with a second inclined groove 161. The first inclined groove 151 and the second inclined groove 161 are respectively matched with the inclined block 121. The inclined block 121 is inserted into the first inclined groove 151 and the second inclined groove 161, so as to form an inclined cutting effect, thereby realizing the driving effect of the first sliding block 15 and the second sliding block 16.
[0047] Specifically, as shown in the accompanying drawings, Figures 2-4 The first sliding block 15 is linked with the first insert 17 by screw connection or buckle connection, and the second sliding block 16 is linked with the second insert 18 by screw connection or buckle connection. The connection mode can be adjusted according to actual needs, and the linkage relationship and the connection strength need to be ensured. The first sliding block 15 drives the first insert 17 to move, and the second sliding block 16 drives the second insert 18 to move, thereby forming a stable movement effect.
[0048] Specifically, as shown in the accompanying drawings, Figures 2-4 One of the first insert 17 and the second insert 18 is provided with a positioning groove 19, and the other of the first insert 17 and the second insert 18 is provided with a positioning block 20 matched with the positioning groove 19. When the first insert 17 and the second insert 18 are moved to the position, the positioning block 20 is matched with the positioning groove 19, so as to limit the position and prevent excessive movement, thereby better realizing the gel injection processing of the cavity 100.
[0049] Specifically, in addition to the above, other inserts are further provided to form other characteristics of the relay shell 11, such as the groove characteristics on the top surface of the relay shell 11. Those skilled in the art should know how to design, and therefore the embodiment is not described in detail.
[0050] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Other different forms of changes or variations can be made on the basis of the above description for those skilled in the art. Here, all the embodiments need not and can not be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. A mold for processing an ultra-thin wall relay housing, characterized by, The utility model relates to a kind of mold for forming relay shell, including: Cavity (100), the cavity (100) is used to form relay shell (11); Core block (14), the two side surfaces of the core block (14) are provided with outer convex part (141), the outer convex part (141) protrudes towards outside, the outer convex part (141) is used to form the inner wall of the relay shell (11).
2. The mold for machining an ultra-thin wall relay housing according to claim 1, wherein, The inner wall of the cavity (100) is provided with compensation part (101), the compensation part (101) is correspondingly arranged with the outer convex part (141).
3. The mold for machining an ultra-thin wall relay housing according to claim 2, wherein, The outer convex part (141) is arc surface or inclined plane.
4. The mold for machining an ultra-thin wall relay housing according to claim 3, wherein When the outer convex part (141) is arc surface, the compensation part (101) is concave arc surface, the outer convex size of the outer convex part (141) is greater than the concave size of the compensation part (101).
5. The mold for machining an ultra-thin wall relay housing according to claim 1 or 2 or 3 or 4, characterized in that, The outer convex size of the outer convex part (141) is obtained by Moldex3D simulation.
6. The mold for machining an ultra-thin wall relay housing according to claim 1, wherein, Also including fixed mould (12), movable mould (13), the fixed mould (12) is fixed with two inclined blocks (121), the movable mould (13) is fixed with first sliding block (15), second sliding block (16), first insert (17), second insert (18), the first sliding block (15) is linked with the first insert (17), the second sliding block (16) is linked with the second insert (18), the first insert (17) and the second insert (18) cooperate to form a part of the cavity (100);When the fixed mould (12) cooperates with the movable mould (13), two inclined blocks (121) respectively drive corresponding first sliding block (15), second sliding block (16) movement towards each other.
7. The mold for machining an ultra-thin wall relay housing according to claim 6, wherein The first sliding block (15) is provided with first inclined groove (151), and the second sliding block (16) is provided with second inclined groove (161), and the first inclined groove (151) and the second inclined groove (161) are matched with the inclined block (121) respectively.
8. The mold for machining an ultra-thin wall relay housing according to claim 6, wherein The first sliding block (15) and the first insert (17) are bolted or buckled;The second sliding block (16) and the second insert (18) are bolted or buckled.
9. The mold for machining an ultra-thin wall relay housing according to claim 6, wherein, One of the first insert (17) and the second insert (18) is provided with positioning groove (19), and the other of the first insert (17) and the second insert (18) is provided with positioning block (20) matched with the positioning groove (19).