CN217021400U

CN217021400U - High-pressure die for realizing high-tensile effect of sheet

Info

Publication number: CN217021400U
Application number: CN202123249873.0U
Authority: CN
Inventors: 胡雄辉; 唐均华; 程涵; 郑月亮; 周召军; 彭超
Original assignee: Dongguan Paddy Field Weiye Plastic Technology Co ltd
Current assignee: Dongguan Paddy Field Weiye Plastic Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-22
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of dies, in particular to a high-pressure die for realizing a high-tensile effect of a sheet, which comprises an upper die and a lower die, wherein a product outer side profiling groove is arranged at the lower end of the upper die, the product outer side profiling groove comprises a product top profiling surface at the top and product side profiling surfaces at the periphery, corner structures are respectively arranged between the product side profiling surfaces at the periphery of the product outer side profiling groove and between the product top profiling surface and the product side profiling surface, an air passage is arranged on the upper die, an air inlet end of the air passage is arranged at the upper end of the upper die, and an air outlet end of the air passage is arranged at the corner structure in the product outer side profiling groove; the air flue air outlet end is arranged at a corner structure in the product outer side profiling groove, the aim that the high-stretching area of the sheet preferentially inputs air pressure is achieved, the high-stretching area of the sheet preferentially receives air pressure to perform plastic deformation, the sheet is gently unfolded under the condition of the air pressure, and wrinkles are avoided or uneven thickness is caused during stretching.

Description

High-pressure die for realizing high-tensile effect of sheet

Technical Field

The utility model relates to the technical field of dies, in particular to a high-pressure die for realizing a high-tension effect of a sheet.

Background

At present, with the technical requirements of an intelligent cabin of an automobile continuously upgrading, touch IML panel products applied by a human-computer interaction intermediary are more and more, and new products and new difficulties need to be overcome and challenged continuously in project development; in the processing production of the existing touch IML panel, a stamping die is required to carry out a processing technology of a forming die so as to make the touch IML panel into a shape; the stamping die is a pressure processing method for applying pressure to a material by utilizing a die arranged on a press machine to separate or plastically deform the material so as to obtain a required part, the stamping die is classified into forming dies according to process properties, the forming dies are dies for directly copying and forming a blank or a semi-finished workpiece according to the shapes of a convex die and a concave die of a figure, and the material only generates local plastic deformation; such as an expansion die, a necking die, a flaring die, a relief forming die, a flanging die, a sizing die and the like; taking a certain model project of an east wind automobile as an example, due to limited IP space, the size of a developed touch IML panel product is as follows: length 281.6mm, width 27.8mm, height 16.2mm, its top surface corner fillet is only R1.5mm, and four vertical corner fillets are only R1.2mm, meet this kind of condition, the difficult point lies in: in the stretching process, because a die is a rigid body, the sheet is easy to stretch and crack at the corner, so that the side surface is stretched, thinned and transparent, or the stretching is uneven, and therefore, an improved technical scheme is needed to realize the design of a touch IML panel with higher requirements.

SUMMERY OF THE UTILITY MODEL

The present invention aims to overcome the defects of the prior art and provide a technical solution to the above problems.

A high-pressure die for realizing a high stretching effect of a sheet comprises an upper die and a lower die, wherein a product outer side profiling groove is arranged at the lower end of the upper die and comprises a product top profiling surface at the top and product side profiling surfaces at the peripheral sides of the product outer side profiling groove, corner structures are arranged between the product side profiling surfaces at the peripheral sides of the product outer side profiling groove and between the product top profiling surface and the product side profiling surface, an air passage is arranged on the upper die, an air inlet end of the air passage is arranged at the upper end of the upper die, and an air outlet end of the air passage is arranged at the corner structure in the product outer side profiling groove; the upper end of the lower die is provided with an inner-side profiling body of the product, the inner-side profiling body of the product is matched with the outer-side profiling groove of the product, and an elastic plate used for pushing out the product is arranged on the lower die and positioned around the inner-side profiling body of the product.

Preferably, the upper die comprises a panel, a cavity, an air pressure guide plate and a pressure plate, the cavity and the pressure plate are both arranged at the lower end of the panel, the product outer side profiling groove is positioned at the lower part of the cavity, the pressure plate surrounds the periphery of the cavity, and the pressure plate is matched with the elastic plate; atmospheric pressure deflector sets up between die cavity and panel, and the inlet end setting of air flue is on the panel, and the end of giving vent to anger of air flue sets up on the die cavity, and the subchannel for setting up on atmospheric pressure deflector in the middle part of air flue, and the air flue forms a plurality of ends of giving vent to anger through the subchannel at middle part.

Preferably, the pneumatic pressure guide plate is embedded in the upper end of the cavity so that the upper end surface of the cavity and the upper end surface of the pneumatic pressure guide plate are flush with each other.

Preferably, a heat shield is further disposed between the pneumatic pressure guide plate and the cavity, and the heat shield corresponds to the top profile of the product.

Preferably, the lower mold comprises a bottom plate and a core, the core is embedded on the bottom plate, the elastic plate is elastically connected to the bottom plate and surrounds the core, and the inner side profiling body of the product is positioned on the upper part of the core.

Preferably, the lower extreme at the core is provided with the mosaic piece, is provided with on the bottom plate and inlays the groove, and the core inlays the groove of inlaying on the bottom plate through the mosaic piece to still be connected with the screw in the position department of inlaying of core and bottom plate.

Preferably, the lower end face of the die cavity is provided with a blank surface surrounding the periphery of the product outer side profiling groove, and the blank surface is matched with the upper end face of the die core.

Preferably, the lower terminal surface of die cavity still has around cutting the first card charge level around the charge level, is provided with the second card charge level that matches in first card charge level on the diving board, and first inclined plane and the cooperation of osculating each other of second inclined plane, and first card charge level and second card charge level are the inclined plane.

Preferably, a plurality of clamping material grooves which are sunken towards the inside of the cavity are uniformly arranged on the first clamping material surface, a plurality of clamping material blocks which are protruded towards the outside of the elastic plate are uniformly arranged on the second clamping material surface, and the clamping material grooves and the clamping material blocks are matched with each other.

Compared with the prior art, the utility model has the beneficial effects that:

the air passage is arranged for introducing compressed air, the air passage is arranged on the upper die, and the air outlet end of the air passage is arranged at the corner structure in the profiling groove on the outer side of the product, so that the aim of preferentially inputting air pressure in a high-tensile area of the sheet is fulfilled, the high-tensile area of the sheet can preferentially receive air pressure to perform plastic deformation, the sheet can be smoothly unfolded under the condition of the air pressure, and wrinkles are avoided or the thickness is not uniform during stretching is avoided; in addition, through the optimized design of the mold structure, the molding parameter range is widened, the development time is saved, and the development cost is saved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a three-dimensional view of a touch IML panel;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic cross-sectional structure of the present invention;

FIG. 4 is a schematic view showing the structure of the pneumatic pressure guide plate according to the present invention;

fig. 5 is a schematic diagram of the structure of fig. 3 at a according to the present invention.

The reference numerals and names in the figures are as follows:

the touch IML module comprises a touch IML panel 1, an upper die 10, a lower die 20, a product outer side contour groove 11, an air channel 12, a panel 13, a cavity 14, an air pressure guide plate 15, a material pressing plate 16, a heat shield 17, a product inner side contour body 21, an elastic plate 22, a bottom plate 23, a mold core 24, a screw 25, a product top contour surface 111, a product side contour surface 112, a corner structure 113, a diversion channel 121, a material cutting surface 141, a first material clamping surface 142, a material clamping groove 143, a second material clamping surface 221, a material clamping block 222, an embedding groove 231 and an embedding block 241.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, a high pressure die for achieving a high stretching effect of a sheet includes an upper die 10 and a lower die 20, a product outer side contour groove 11 is disposed at a lower end of the upper die 10, the product outer side contour groove 11 includes a product top contour surface 111 at a top and a product side contour surface 112 at a peripheral side, corner structures 113 are disposed between the product side contour surfaces 112 at the peripheral side of the product outer side contour groove 11 and between the product top contour surface 111 and the product side contour surface 112, an air passage 12 is disposed on the upper die 10, an air inlet end of the air passage 12 is disposed at an upper end of the upper die 10, and an air outlet end of the air passage 12 is disposed at the corner structures 113 in the product outer side contour groove 11; the upper end of the lower die 20 is provided with a product inner side copying body 21, the product inner side copying body 21 is matched with the product outer side copying groove 11, and an elastic plate 22 for pushing out the product is arranged on the lower die 20 and positioned around the product inner side copying body 21.

In the technical scheme, the touch IML panel 1 is narrow in width, high in height and small in corner fillet value; the air channel 12 is used for introducing compressed gas, so that the cavity of the high-pressure die achieves the effect of high pressure, the method specifically comprises the steps of arranging the upper die 10 and the lower die 20, arranging the product outer side profile groove 11 on the upper die 10, arranging the product inner side profile body 21 on the lower die 20, forming a stamping cavity for forming the touch IML panel 1 when the upper die 10 and the lower die 20 are covered, arranging the air channel 12 on the upper die 10, arranging the air outlet end of the air channel 12 at the corner structure 113 in the product outer side profile groove 11, placing a high-temperature softened sheet on the lower die 20 in practical application, introducing compressed gas along the air channel 12 when the upper die 10 stamps downwards, so that a high-tensile area of the sheet preferentially receives air pressure, tightly attaching the high-tensile area of the sheet to the product inner side profile body 21 through the pressure of the air pressure, and achieving the effect of plastic deformation of the sheet by the air pressure, finally, the sheet is punched into a required shape through the product outer-side profiling groove 11, and through the design, the air outlet end is designed at the position of the corner structure 113, so that the aim of preferentially inputting air pressure into a high-stretching area of the sheet is achieved, the high-stretching area of the sheet can preferentially receive air pressure to perform plastic deformation, the sheet is smoothly unfolded under the condition of the air pressure, and wrinkles are avoided or uneven thickness during stretching is avoided; in addition, through the optimized design of the mold structure, the molding parameter range is widened, the development time is saved, and the development cost is saved; after the touch IML panel 1 is formed, part of the sheet overflows on the elastic plate 22, and the touch IML panel 1 is separated from the inner-side shape-imitating body 21 of the product by pushing the elastic plate 22 upwards, so that the demoulding operation is realized.

In order to more clearly illustrate the technical solution of the present application, the following will clearly and completely describe the specific structures of the upper die 10 and the lower die 20, and the matching relationship between the upper die 10 and the lower die 20:

for the structural design of the upper die 10, as shown in fig. 2-4, the upper die 10 is specifically set to be a component structure including a panel 13, a cavity 14, an air pressure guide plate 15 and a pressure plate 16, the cavity 14 and the pressure plate 16 are both installed at the lower end of the panel 13, the product outer-side profiling groove 11 is located at the lower part of the cavity 14, the pressure plate 16 surrounds the cavity 14, the pressure plate 16 and the elastic plate 22 are mutually matched, and the pressure plate 16 and the elastic plate 22 are mainly used for pressing the edge of a sheet material, so that the sheet material is not extruded out of the die when being subjected to punch forming; the air pressure guide plate 15 is arranged between the cavity 14 and the panel 13, the air inlet end of the air passage 12 is arranged on the panel 13, the air outlet end of the air passage 12 is arranged on the cavity 14, the middle part of the air passage 12 is provided with a sub-flow passage 121 arranged on the air pressure guide plate 15, and the air passage 12 forms a plurality of air outlet ends through the sub-flow passage 121 in the middle part; by using the separately separated air pressure guide plate 15, the sub-runners 121 are flexibly designed on the air inlet surface (i.e. the surface butted with the air inlet end) according to the shape of the product in sequence, so that the air outlet surface is matched with the air outlet end on the cavity 14, and the high-tension area preferentially receives the air pressure; the air pressure guide plate 15 is embedded at the upper end of the cavity 14, so that the upper end surface of the cavity 14 and the upper end surface of the air pressure guide plate 15 are flush, and the integral structure of the upper die 10 is compact and reasonable in design; a heat shield 17 is further arranged between the air pressure guide plate 15 and the cavity 14, the heat shield 17 corresponds to the product top profiling surface 111, the product top profiling surface 111 corresponds to an operation interface of the touch IML panel 1, and the touch IML panel is provided with a matching key, an interface, a display screen and other structures, so that the heat shield 17 is used for heat insulation after stamping, the touch IML panel is solidified limitedly, and the situation of tensile fracture in the stamping process is prevented.

With respect to the structural design of the lower die 20, as shown in fig. 2-3, the lower die 20 is specifically configured to include a bottom plate 23 and a core 24, the core 24 is embedded on the bottom plate 23, the elastic plate 22 is elastically connected to the bottom plate 23, the elastic plate 22 surrounds the core 24, and the product inner side profiling body 21 is located on the upper portion of the core 24; an insert block 241 is provided at a lower end of the core 24, an insert groove 231 is provided on the bottom plate 23, the core 24 is inserted into the insert groove 231 on the bottom plate 23 through the insert block 241, and a screw 25 is further coupled to an insertion position of the core 24 and the bottom plate 23.

For the matching of the upper die 10 and the lower die 20, as shown in fig. 5, the lower end surface of the cavity 14 is provided with a blank surface 141 surrounding the periphery of the product outer-side profiling groove 11, and the blank surface 141 is matched with the upper end surface of the core 24, so that the waste can be conveniently cut out after the touch-control IML panel 1 is subjected to punch forming; the lower end surface of the cavity 14 further has a first material clamping surface 142 surrounding the material cutting surface 141, the elastic plate 22 is provided with a second material clamping surface 221 matched with the first material clamping surface 142, the first inclined surface and the second inclined surface are matched with each other in a butt joint manner, and both the first material clamping surface 142 and the second material clamping surface 221 are inclined surfaces; the first clamping surface 142 and the second clamping surface 221 are arranged, and the first clamping surface 142 and the second clamping surface 221 are inclined surfaces, so that the situation that sheets are extruded outwards during stamping is reduced, and the yield of the touch IML panel 1 is improved; the first clamping surface 142 is uniformly provided with a plurality of clamping grooves 143 which are sunken towards the inside of the cavity 14, the second clamping surface 221 is uniformly provided with a plurality of clamping blocks 222 which are protruded towards the outside of the elastic plate 22, the clamping grooves 143 are matched with the clamping blocks 222, and the sheet generates overflow resistance on the sheet through the display of the clamping blocks 222 and the clamping grooves 143, so that the outward extrusion of the sheet during stamping can be further reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A high-pressure die for realizing the high stretching effect of a sheet comprises an upper die and a lower die and is characterized in that a product outer side profiling groove is arranged at the lower end of the upper die and comprises a product top profiling surface at the top and product side profiling surfaces on the periphery, corner structures are arranged between the product side profiling surfaces on the periphery of the product outer side profiling groove and between the product top profiling surface and the product side profiling surface, an air passage is arranged on the upper die, the air inlet end of the air passage is arranged at the upper end of the upper die, and the air outlet end of the air passage is arranged at the corner structure in the product outer side profiling groove; the upper end of the lower die is provided with a product inner side profiling body, the product inner side profiling body is matched with the product outer side profiling groove, and an elastic plate used for pushing out the product is arranged on the lower die and located around the product inner side profiling body.

2. The high-pressure die for realizing the high stretching effect of the sheet material as claimed in claim 1, wherein the upper die comprises a panel, a cavity, a pneumatic pressure guide plate and a pressure plate, the cavity and the pressure plate are both arranged at the lower end of the panel, the product outer side profiling groove is positioned at the lower part of the cavity, the pressure plate surrounds the cavity, and the pressure plate and the elastic plate are matched with each other; atmospheric pressure deflector sets up between die cavity and panel, and the inlet end setting of air flue is on the panel, and the end of giving vent to anger of air flue sets up on the die cavity, and the subchannel for setting up on atmospheric pressure deflector in the middle part of air flue, and the air flue forms a plurality of ends of giving vent to anger through the subchannel at middle part.

3. A high pressure die for realizing high stretching effect of a sheet according to claim 2, wherein the pneumatic pressure guide plate is embedded in the upper end of the cavity so that the upper end surface of the cavity and the upper end surface of the pneumatic pressure guide plate are flush with each other.

4. A high-pressure die for realizing high-tension effect of sheet material according to any one of claims 2 to 3, wherein a heat shield is further provided between the pneumatic pressure guide plate and the die cavity, the heat shield corresponding to the top contour of the product.

5. The high-pressure die for realizing the high stretching effect of the sheet material as claimed in claim 2, wherein the lower die comprises a bottom plate and a core, the core is embedded on the bottom plate, the elastic plate is elastically connected to the bottom plate and surrounds the core, and the inner-side profiling body of the product is positioned on the upper part of the core.

6. The high-pressure die for realizing the high tensile effect of the sheet material as claimed in claim 5, wherein an embedding block is arranged at the lower end of the core, an embedding groove is arranged on the bottom plate, the core is embedded in the embedding groove on the bottom plate through the embedding block, and a screw is further connected to the embedding position of the core and the bottom plate.

7. A high-pressure die for realizing high tensile effect of sheet materials according to claim 5, wherein the lower end surface of the die cavity is provided with a blank surface surrounding the periphery of the product outer side profiling groove, and the blank surface is matched with the upper end surface of the core.

8. A high-pressure die for realizing high tensile effect of sheet material according to claim 7, wherein the lower end face of the die cavity is further provided with a first clamping face surrounding the periphery of the material cutting face, the elastic plate is provided with a second clamping face matched with the first clamping face, the first inclined face and the second inclined face are mutually matched in a butt joint manner, and the first clamping face and the second clamping face are both inclined faces.

9. A high pressure die for realizing high tensile effect of sheet material according to claim 8, wherein a plurality of material clamping grooves are uniformly arranged on the first material clamping surface and are concave towards the inside of the die cavity, a plurality of material clamping blocks are uniformly arranged on the second material clamping surface and are convex towards the outside of the elastic plate, and the material clamping grooves and the material clamping blocks are matched with each other.