Diaphragm anti-warping shaping fixing structure

Abstract

The utility model relates to the technical field of dies. The diaphragm anti-warping shaping fixing structure comprises a front mold and a rear mold, and a cavity matched with the outline of a diaphragm is formed in the front mold; the rear mold is provided with at least three elastic shaping modules used for abutting against the outer edge of the diaphragm, and the at least three elastic shaping modules are arranged along the outer contour of the diaphragm; the elastic shaping module comprises a fixed guide seat and a movable elastic block; the fixed guide seat is detachably mounted on the rear mold through a screw; an inclined dovetail groove is formed in the inner side of the fixed guide seat, and a protrusion connected with the dovetail groove in a sliding mode is arranged on the outer side of the movable elastic block. The inner side of the movable elastic block is provided with a lap joint groove used for being in lap joint with the outer edge of the diaphragm. And a spring is clamped between the movable elastic block and the rear mold. In the mold closing process of the front mold and the rear mold, the lap joint groove of the movable elastic block firstly makes contact with the edge of the diaphragm, and in the continuous mold closing process of the front mold, elastic pressure is applied to the outer edge of the diaphragm through the movable elastic block for shaping.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a mold shaping structure. Background Art

[0002] The INS diaphragm is easily warped during the blister punching process. After the INS diaphragm is punched and processed, it is placed in the front mold cavity for injection molding. When the product is molded and injected, it will cause the diaphragm to be crushed around the circle, resulting in a decrease in the product qualification rate.

[0003] Since there is no diaphragm warping shaping mechanism in the existing injection mold, it is not conducive to the quality of the product after injection molding. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a diaphragm anti-warping shaping and fixing structure, which has solved at least one of the above-mentioned technical problems.

[0005] The technical solution of the utility model is: a diaphragm anti-warping shaping and fixing structure, comprising a front mold and a rear mold, characterized in that a cavity matching the diaphragm contour is opened on the front mold;

[0006] The rear mold is provided with an elastic shaping module for resisting the outer edge of the diaphragm, and at least three elastic shaping modules are provided, and at least three elastic shaping modules are provided along the outer contour of the diaphragm;

[0007] The elastic shaping module comprises a fixed guide seat and a movable spring block, and the fixed guide seat is detachably mounted on the rear mold by screws;

[0008] The inner side of the fixed guide seat is provided with an inclined dovetail groove, and the outer side of the movable spring block is provided with a protrusion slidably connected to the dovetail groove;

[0009] The inner side of the movable elastic block is provided with an overlapping groove for overlapping the outer edge of the diaphragm;

[0010] A spring is sandwiched between the movable spring block and the rear mold.

[0011] The utility model sets an elastic shaping module. When the front mold and the rear mold are closed, the overlapping groove of the movable spring block first contacts the edge of the diaphragm. When the front mold is continuously closed, the elastic force of the outer edge of the diaphragm is pressed and shaped by the movable spring block.

[0012] Further preferably, the guiding direction of the dovetail groove is inclined 3° from the rear mold to the front mold side away from the diaphragm side.

[0013] Further preferably, a positioning protrusion is provided on the cavity, and a positioning hole matching the positioning protrusion is opened on the diaphragm.

[0014] It is convenient to fix the diaphragm in the cavity.

[0015] Further preferably, a diaphragm positioning assembly is installed on the front mold;

[0016] The diaphragm positioning assembly comprises a mounting block detachably mounted on the front mold, and the mounting block is slidably connected to a locking block;

[0017] The front mold is provided with a receiving groove, the mounting block is installed in the receiving groove, and a return spring is sandwiched between the receiving groove and the locking block;

[0018] The locking block is provided with an extension portion extending into the cavity, and a limiting surface for abutting against the edge of the diaphragm is provided on a side of the extension portion adjacent to the cavity;

[0019] The rear mold is provided with a guide groove for guiding the locking block to move out of the mold cavity.

[0020] In the un-closed mold state, the locking block extends into the mold cavity, which is convenient for realizing the limit support of the edge of the diaphragm. In the process of closing the front mold and the rear mold, the locking block extends out of the mold cavity under the guidance of the guide groove.

[0021] Further preferably, at least two of the diaphragm positioning assemblies are installed on the outer edge of one of the cavities.

[0022] Further preferably, the mounting block and the accommodating groove are detachably connected to form a guide groove which is slidably connected to the locking block.

[0023] Further preferably, the locking block is provided with a strip-shaped protrusion slidably connected to the guide groove, and the strip-shaped protrusion is clamped between the mounting block and the front mold.

[0024] Further preferably, the locking block is provided with an outer convex portion protruding outward from the front mold, and the outer convex portion is provided with an inclined surface arranged obliquely;

[0025] The guide groove is provided with a guide surface matching the inclined surface.

[0026] Beneficial effects:

[0027] The utility model sets an elastic shaping module. When the front mold and the rear mold are closed, the overlapping groove of the movable spring block first contacts the edge of the diaphragm. When the front mold is continuously closed, the elastic force of the outer edge of the diaphragm is pressed and shaped by the movable spring block.

[0028] The utility model improves the pre-positioning effect of the diaphragm in the front mold through the diaphragm positioning component, which is convenient for improving the injection molding effect in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural schematic diagram of a rear mold with an elastic shaping module installed on a specific embodiment 1 of the utility model;

[0030] Figure 2 This is a schematic structural diagram of the elastic shaping module of Embodiment 1 of the present invention;

[0031] Figure 3 This is an exploded view of the elastic shaping module of the specific embodiment 1 of the utility model;

[0032] Figure 4 It is a schematic diagram of the elastic shaping module and the diaphragm in the unmolded state according to the specific embodiment 1 of the utility model;

[0033] Figure 5 This is a structural schematic diagram of a diaphragm positioning assembly installed on the front mold of the specific embodiment 2 of the utility model;

[0034] Figure 6 This is a schematic structural diagram of the front mold of the specific embodiment 2 of the utility model;

[0035] Figure 7 It is a structural schematic diagram of a diaphragm positioning assembly of a specific embodiment 2 of the utility model;

[0036] Figure 8 It is a structural schematic diagram of the diaphragm positioning assembly of the specific embodiment 2 of the utility model from another perspective;

[0037] Fig. 9 It is an exploded view of the diaphragm positioning assembly of the specific embodiment 2 of the utility model;

[0038] Fig.10 It is a schematic diagram of the partial structure of the guide groove of the specific embodiment 2 of the utility model;

[0039] Fig.11 It is a partial structural schematic diagram of a locking block embedded in a guide groove of a specific embodiment 2 of the utility model;

[0040] Fig.12 This is a schematic diagram of the movement change of the locking block of the front mold in the specific embodiment 2 of the utility model.

[0041] In the figure: 1 is the front mold, 2 is the rear mold, 21 is the guide groove, 3 is the elastic shaping module, 31 is the fixed guide seat, 32 is the movable spring block, 33 is the spring, 4 is the diaphragm positioning assembly, 41 is the mounting block, 42 ​​is the locking block, 43 is the return spring, 421 is the limiting surface, and 422 is the inclined surface. DETAILED DESCRIPTION

[0042] See also Figures 1 to 4, Specific embodiment 1, a diaphragm anti-warping shaping fixing structure includes a front mold 1 and a rear mold 2, the front mold 1 is provided with a cavity matching the contour of the diaphragm; an elastic shaping module 3 for resisting the outer edge of the diaphragm is installed on the rear mold 2, and at least three elastic shaping modules 3 are provided, and at least three elastic shaping modules 3 are arranged along the outer contour of the diaphragm; the elastic shaping module 3 includes a fixed guide seat 31 and a movable spring block 32, and the fixed guide seat 31 is detachably mounted on the rear mold 2 by screws; an inclined dovetail groove is provided on the inner side of the fixed guide seat 31, and a protrusion slidably connected to the dovetail groove is provided on the outer side of the movable spring block 32; a lap groove for lap-jointing the outer edge of the diaphragm is provided on the inner side of the movable spring block 32; a spring 33 is sandwiched between the movable spring block 32 and the rear mold 2. The utility model provides an elastic shaping module 3. When the front mold 1 and the rear mold 2 are in the process of closing the mold, the overlapping groove of the movable spring block 32 first contacts the edge of the diaphragm. When the front mold 1 is continuously closed, the elastic force of the outer edge of the diaphragm is pressed and shaped by the movable spring block 32. When the side of the movable spring adjacent to the front mold is flush with the side of the rear mold adjacent to the front mold, the overlapping groove is a local molding surface of the cavity of the rear mold.

[0043] The inner side of the movable spring block is the side adjacent to the diaphragm, and the outer side of the movable spring block is the side away from the diaphragm.

[0044] The guiding direction of the dovetail groove is from the rear mold 2 side to the front mold 1 side and is inclined 3° away from the diaphragm side.

[0045] The fixed guide seat is provided with a slot body for embedding the screw head. The slot body is connected with the dovetail groove. The screw head partially protrudes out of the dovetail groove. The movable spring block is provided with an avoidance groove for sliding connection with the screw head protruding out of the dovetail groove area.

[0046] See also Figures 5 to 12 , Specific embodiment 2, on the basis of specific embodiment 1, a positioning protrusion is provided on the cavity, and a positioning hole matching the positioning protrusion is provided on the diaphragm. It is convenient to realize the fixing of the diaphragm to the cavity. A diaphragm positioning assembly 4 is installed on the front mold 1; the diaphragm positioning assembly 4 includes a mounting block 41 that can be detachably mounted on the front mold 1, and the mounting block 41 is slidably connected with a locking block 42; a receiving groove is provided on the front mold 1, and a mounting block 41 is installed in the receiving groove, and a reset spring 43 is sandwiched between the receiving groove and the locking block 42; the locking block 42 is provided with an extension extending into the cavity, and a limiting surface 421 for resisting the edge of the diaphragm is provided on the side of the extension adjacent to the cavity; a guide groove 21 for guiding the locking block 42 to move out of the cavity is provided on the rear mold 2. In the un-molded state, the locking block 42 extends into the cavity, which is convenient for realizing the limiting support of the edge of the diaphragm. During the mold closing process of the front mold 1 and the rear mold 2, the locking block 42 extends out of the cavity under the guidance of the guide groove. This avoids affecting injection molding.

[0047] At least two diaphragm positioning components 4 are installed on the outer edge of a cavity. The number of elastic shaping modules 3 is greater than the number of diaphragm positioning components 4.

[0048] The mounting block 41 and the receiving groove are detachably connected to form a guide groove that is slidably connected to the locking block 42. The locking block 42 is provided with a strip protrusion that is slidably connected to the guide groove, and the strip protrusion is sandwiched between the mounting block 41 and the front mold 1. The locking block 42 is provided with an outer convex portion protruding out of the front mold 1, and the outer convex portion is provided with an inclined surface 422; the guide groove 21 is provided with a guide surface matching the inclined surface.

[0049] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A diaphragm anti-warping shaping and fixing structure, comprising a front mold and a rear mold, characterized in that: The front mold is provided with a cavity matching the contour of the diaphragm; The rear mold is provided with an elastic shaping module for resisting the outer edge of the diaphragm, and at least three elastic shaping modules are provided, and at least three elastic shaping modules are provided along the outer contour of the diaphragm; The elastic shaping module comprises a fixed guide seat and a movable spring block, and the fixed guide seat is detachably mounted on the rear mold by screws; The inner side of the fixed guide seat is provided with an inclined dovetail groove, and the outer side of the movable spring block is provided with a protrusion slidably connected to the dovetail groove; The inner side of the movable elastic block is provided with an overlapping groove for overlapping the outer edge of the diaphragm; A spring is sandwiched between the movable spring block and the rear mold.

2. The diaphragm anti-warping shaping and fixing structure according to claim 1, characterized in that: The guiding direction of the dovetail groove is from the rear mold side to the front mold side and is inclined 3° away from the diaphragm side.

3. The diaphragm anti-warping shaping and fixing structure according to claim 1, characterized in that: The cavity is provided with a positioning protrusion, and the diaphragm is provided with a positioning hole matching the positioning protrusion.

4. The diaphragm anti-warping shaping and fixing structure according to claim 1, characterized in that: A diaphragm positioning assembly is installed on the front mold; The diaphragm positioning assembly comprises a mounting block detachably mounted on the front mold, and the mounting block is slidably connected to a locking block; The front mold is provided with a receiving groove, the mounting block is installed in the receiving groove, and a return spring is sandwiched between the receiving groove and the locking block; The locking block is provided with an extension portion extending into the cavity, and a limiting surface for abutting against the edge of the diaphragm is provided on a side of the extension portion adjacent to the cavity; The rear mold is provided with a guide groove for guiding the locking block to move out of the mold cavity.

5. The diaphragm anti-warping shaping and fixing structure according to claim 4, characterized in that: At least two diaphragm positioning assemblies are installed on the outer edge of one of the cavities.

6. The diaphragm anti-warping shaping and fixing structure according to claim 4, characterized in that: The mounting block and the accommodating groove are detachably connected to form a guide groove which is slidably connected to the locking block.

7. The diaphragm anti-warping shaping and fixing structure according to claim 6, characterized in that: The locking block is provided with a strip-shaped protrusion which is slidably connected with the guide groove, and the strip-shaped protrusion is clamped between the mounting block and the front mold.

8. The diaphragm anti-warping shaping and fixing structure according to claim 6, characterized in that: The locking block is provided with an outer convex portion protruding outward from the front mold, and the outer convex portion is provided with an inclined surface arranged obliquely; The guide groove is provided with a guide surface matching the inclined surface.

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