CN214601451U - General type TV set backplate forming die - Google Patents

Abstract

The utility model provides a general television backboard forming die, which comprises a drawing die and a punching die, wherein the upper die plate of the drawing die comprises an upper die plate body and a plurality of upper die inserts, the upper die plate body is provided with insert holes, and any one of the upper die inserts is embedded in the insert hole and detachably and fixedly connected with an upper die base; the position and the size of the first upper connecting structure of the upper die insert blocks are consistent, the lower die plate comprises a lower die plate body and a plurality of lower die insert blocks, an insert block groove is formed in the lower die plate body, and any lower die insert block is embedded in the insert block groove and detachably and fixedly connected to the lower base plate. The utility model discloses commonality TV set backplate forming die can adopt same set of tensile mould to the different machine kind TV set backplate stretch forming of same model time, only need to change the mould insert with the corresponding lower mould insert can, improve tensile mould's general to reducible die sinking quantity reduces die sinking cost and mould manufacturing cost, shortens backplate shaping cycle.

Description

General type TV set backplate forming die

Technical Field

The utility model belongs to the technical field of stamping die, concretely relates to improve general type TV set backplate forming die of mould commonality.

Background

The television products are fast in updating and replacing, and different market requirements need to be met, so that a plurality of different television models exist, the common television models in the market are 32 inches, 43 inches, 55 inches and the like, and the same type of television has different models even if the models of the same manufacturer are different, so that the same type of television has different models, and the same type of television takes a 55-inch television as an example and has a plurality of different models. The back plate is used as a mounting carrier of television parts, and the back plates of different types of televisions of the same type are different.

A common back plate structure is shown in fig. 1 and generally comprises three parts, namely an internal area 2 defined by a plurality of n-shaped ribs 1, a large-area convex hull area 3 at the periphery of the n-shaped ribs 1 and a bending area 4 at the edge of the large-area convex hull area 3, wherein a plurality of independent round convex hulls 5 and other shapes are arranged in the internal area 2, the area is a non-appearance area, and most of various parts of a television are arranged in the area; structures such as reinforcing ribs 4 and mark lines 6 are arranged in the large-area convex hull area 3, and the area is an appearance area and plays a role in supporting and beautifying; the bending region 5 is mainly used for mounting the outer frame of the television and mounting and fixing parts such as a display screen. The difference of the back plates of the televisions with different models in the same machine type is mainly reflected in the internal area 2, and the other two areas have a certain difference.

For mold design, 6 to 8 sets of molds may be required for forming a back plate part, typically a drawing mold, a trimming mold, a punching mold, a deburring mold, a bending and sprouting mold, a beveling mold, a side folding mold and a corner wrapping mold. When there is a difference in the back plate structure, the mold design is also different. Taking the convex hull area as an example, if the heights of the convex hulls are different, the heights of the cavities of all the molds are adjusted correspondingly; if the shapes of the inclined planes of the convex hulls are different, the molded surfaces of deep drawing and shaping need to be correspondingly adjusted, and the problems of material protection and abdication need to be considered for other dies; if the shapes of the bottom surfaces of the convex hulls are different, the outline dimensions of the blank holder of the deep drawing die and the outline dimensions of the male die of the deep drawing die are also different, and the problem of abdicating needs to be considered for other dies. It can be seen that any differences in the structure of the back-plate directly affect the design of at least one set of molds, and even all molds.

In the prior art, the structure of the forming die of the back plates of various televisions of the same type is fixed, namely 6 to 8 sets of dies are required to be opened for the production die corresponding to each type of television back plate, 12 to 16 sets of dies are required to be opened for two types of televisions, and the like. For manufacturers, besides the high mold opening cost, the labor cost and the equipment cost brought by production and the storage cost of the mold when the mold is idle are extremely high, and the mold design and the processing period correspondingly prolong the molding period of the back plate. In the design process of the back plate, a series of parameters such as the bending shape, the bending height, the convex hull shape and the like of the back plate are gradually standardized by various large manufacturers, and the corresponding dies of various procedures in the existing forming die of the back plate of the television set have slight differences, so the disadvantage of the cost of correspondingly forming the dies for the back plate of each type of television set in the prior art is more and more obvious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a general type TV set backplate forming die improves the general of tensile mould among the different kind of TV set backplate forming die of same model, reduces die sinking quantity, reduces die sinking cost and mould manufacturing cost, shortens backplate shaping cycle.

In order to achieve the above technical effects, the utility model discloses a technical scheme be, a general type TV set backplate forming die, include:

the upper die part of the drawing die comprises an upper die plate and an upper die base which is positioned above the upper die plate and fixedly connected with the upper die plate into a whole, and the lower die part of the drawing die comprises a lower die plate and a lower backing plate which is positioned below the lower die plate and fixedly connected with the lower die plate into a whole;

the upper die part of the punching die comprises an upper stripping plate and a stop plate which is positioned above the upper stripping plate and fixedly connected with the upper stripping plate into a whole, the lower die part of the punching die comprises a lower stripping plate and a lower punching die plate which is positioned below the lower stripping plate and fixedly connected with the lower stripping plate into a whole, the upper stripping plate is provided with a plurality of upper stripping plate inlet blocks, and the lower stripping plate is provided with a plurality of lower stripping plate inlet blocks which are correspondingly matched with the upper stripping plate inlet blocks one by one;

the upper die plate comprises an upper die plate body and a plurality of upper die inserts, the upper die plate body is provided with insert holes penetrating through the upper die plate body in the thickness direction, the upper die inserts are respectively provided with a first upper connecting structure used for detachably and fixedly connecting the upper die inserts to the upper die base, and any one of the upper die inserts is embedded in the insert hole and detachably and fixedly connected to the upper die base; the positions and the sizes of the first upper connecting structures of the upper die insert blocks are consistent;

the lower template comprises a lower template body and a plurality of lower die inserts which are matched with the upper die inserts in a one-to-one correspondence manner, the lower template body is provided with an insert groove, the lower die inserts are respectively provided with a first lower connecting structure for detachably and fixedly connecting the lower die inserts to the lower backing plate, and any lower die insert is embedded in the insert groove and detachably and fixedly connected to the lower backing plate; the positions and the sizes of the first lower connecting structures of the lower die insert blocks are consistent.

The technical scheme of the utility model, still include following additional technical characterstic:

the first upper connecting structure comprises a screw hole and a positioning pin hole, the upper die base is correspondingly provided with the screw hole and the positioning pin hole, and any one of the upper die insert is detachably and fixedly connected with the upper die base through a screw and a positioning pin.

The first lower connecting structure comprises a screw hole and a positioning pin hole, the lower base plate is correspondingly provided with the screw hole and the positioning pin hole, and the lower die insert is detachably and fixedly connected with the lower base plate through a screw and a positioning pin.

The circumferential side face of the upper die insert is in fit with the inner wall of the insert hole, and the circumferential side face of the lower die insert is in fit with the circumferential side face of the insert groove.

The upper die insert is formed by splicing two upper die inserts, and the lower die insert is formed by splicing two lower die inserts.

The upper stripper plate comprises an upper stripper plate body, a plurality of first upper stripper plate inserts and a plurality of second upper stripper plate inserts, wherein the upper stripper plate body and any one of the first upper stripper plate inserts and any one of the second upper stripper plate inserts are spliced with each other;

the first upper stripper inserts are respectively provided with a second upper connecting structure for detachably and fixedly connecting the first upper stripper inserts to the stop plate, any one of the first upper stripper inserts is detachably and fixedly connected to the stop plate, and the positions and the sizes of the second upper connecting structures of the first upper stripper inserts are consistent;

and the second upper stripper insert is provided with a third upper connecting structure used for fixedly connecting the second upper stripper insert with the third upper connecting structure of the stop plate in a detachable manner, wherein any one of the second upper stripper insert is fixedly connected with the stop plate in a detachable manner, and the second upper stripper insert is provided with a plurality of third upper connecting structures with consistent positions and sizes.

The second upper connecting structure comprises a screw hole and a positioning pin hole, the stop plate is correspondingly provided with the screw hole and the positioning pin hole, and any one of the first upper stripper plate insert blocks is detachably and fixedly connected to the stop plate through a screw and a positioning pin;

connection structure includes screw hole and locating pin hole on the third, it is equipped with screw hole and locating pin hole to correspond on the backstop board, wherein arbitrary take off on the second board insert through screw and locating pin detachably link firmly in the backstop board.

The lower stripper plate comprises a lower stripper plate body, a plurality of first lower stripper plate inserts and a plurality of second lower stripper plate inserts, wherein the first lower stripper plate inserts are matched with the first upper stripper plate inserts in a one-to-one corresponding manner, the second lower stripper plate inserts are matched with the second upper stripper plate inserts in a one-to-one corresponding manner, and the lower stripper plate body, any one of the first lower stripper plate inserts and any one of the second lower stripper plate inserts are mutually inlaid;

the plurality of first lower stripper inserts are respectively provided with a second lower connecting structure for detachably and fixedly connecting the first lower stripper inserts to the lower template of the punching die, any one of the first lower stripper inserts is detachably and fixedly connected to the lower template of the punching die, and the positions and the sizes of the second lower connecting structures of the plurality of first lower stripper inserts are consistent;

and a plurality of second lower stripper inserts are respectively provided with a third lower connecting structure used for fixedly connecting the second lower stripper inserts with the lower template of the punching die in a detachable manner, any one of the second lower stripper inserts is fixedly connected with the lower template of the punching die in a detachable manner, and the positions and the sizes of the third lower connecting structures of the second lower stripper inserts are consistent.

The second lower connecting structure comprises a screw hole and a positioning pin hole, the lower template of the punching die is correspondingly provided with the screw hole and the positioning pin hole, and any one of the first lower stripper inserts is detachably and fixedly connected to the lower template of the punching die through a screw and a positioning pin;

and the third lower connecting structure comprises a screw hole and a positioning pin hole, the lower template of the punching die is correspondingly provided with the screw hole and the positioning pin hole, and the second lower stripper insert is detachably and fixedly connected with the lower template of the punching die through a screw and a positioning pin.

The upper stripper plate body and the lower stripper plate body are formed by splicing a plurality of sub-plates.

Compared with the prior art, the utility model has the advantages of it is following and positive effect:

1. the utility model discloses among the commonality TV set backplate forming die, the cope match-plate pattern of its tensile mould includes cope match-plate pattern body and a plurality of upper die inserts, the cope match-plate pattern body is equipped with the hole of inserting that is used for inlaying wherein arbitrary piece of upper die inserts, the lower bolster includes lower bolster body and a plurality of lower mould inserts, the lower bolster body is equipped with the groove of inserting that is used for inlaying arbitrary piece of lower mould inserts wherein, a plurality of upper die inserts all can detachably link firmly in the upper die base, and the position and the size of the first upper connection structure of a plurality of upper die inserts are all unanimous; the lower die inserts can be detachably and fixedly connected to the lower base plate, and the positions and the sizes of the first lower connecting structures of the lower die inserts are consistent, so that the same set of stretching die can be adopted when the back plates of the televisions of the same type and different types are stretched and formed, and only the upper die inserts and the corresponding lower die inserts need to be replaced, so that the universality of the stretching die in the back plate forming dies of the televisions of different types is improved, the die opening quantity can be reduced, the die opening cost and the die manufacturing cost are reduced, and the back plate forming period is shortened;

2. the requirement of the standardized structure of the television product can be met, and the standardization of the design and the manufacture of the die can be realized;

3. parts can be exchanged among different stretching dies, and die maintenance is facilitated;

4. the number of the moulds is reduced, and the storage is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic diagram of a TV set back plate structure;

fig. 2 is a schematic structural view of an upper mold plate main body of a stretching mold of the general television backboard forming mold of the present invention;

fig. 3 is a schematic structural view of an upper die insert of a drawing die of the general-purpose tv backboard forming die of the present invention;

fig. 4 is a schematic structural view of another upper die insert of the stretching die of the general-purpose tv backboard forming die of the present invention;

fig. 5 is a schematic structural view of an upper die base of a stretching die of the general-purpose television backboard forming die of the present invention;

fig. 6 is a schematic structural view of a lower template main body of a stretching mold of the general television backboard forming mold of the present invention;

fig. 7 is a schematic structural view of a lower die insert of a drawing die of the general-purpose tv back plate forming die of the present invention;

fig. 8 is a schematic diagram of an upper demoulding structure of a punching die of the general-purpose television backboard forming die of the present invention;

fig. 9 is a schematic structural view of a stop plate of a punching die of a general-purpose tv backboard forming die according to the present invention;

fig. 10 is a schematic view of a lower stripper structure of a punching die of the general-purpose tv backboard forming die of the present invention;

fig. 11 is the utility model discloses general type TV set backplate forming die's cut-out press lower bolster schematic structure view.

100. Mounting a template; 110. an upper template body; 111. an insert hole; 120. an upper die insert; 121. a first upper connecting structure; 121A, screw holes; 121B, positioning pin holes; 122. a sub-upper die insert;

200. an upper die holder; 210. a screw hole; 220. a positioning pin hole;

300. a lower template; 310. a lower template body; 311. an insert groove; 320. a lower die insert; 321. a first lower connecting structure; 321A, screw holes; 321B, positioning pin holes; 322. a sub-lower die insert;

400. punching a lower template of the die; 410. a screw hole; 420. a positioning pin hole; 500. an upper stripping plate; 510. an upper stripper plate body; 520. a first upper stripper insert; 521. a second upper connecting structure; 521A, screw holes; 521B, positioning pin holes; 530. a second upper stripper insert; 531. a third upper connecting structure; 531A, screw holes; 531B, positioning pin holes; 540. putting an upper stripper plate into a block;

600. a stopper plate; 610. a screw hole; 620. a positioning pin hole;

700. removing the plate; 710. a lower stripper plate body; 720. a first lower stripper insert; 721. a second lower connecting structure; 721A, screw holes; 721B, dowel holes; 730. a second lower stripper insert; 731. a third lower connecting structure; 731A, screw hole; 731B, positioning pin holes; 740. and (4) putting an upper stripper plate into a block.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 2 to 7, the general-purpose tv back plate forming mold of the present embodiment includes a drawing mold for drawing a convex hull shape on the back plate and a punching mold for punching a convex hull shape or other shapes on the back plate, and of course, according to a forming process of the back plate, the forming mold further includes a shaping trimming mold, a deburring mold, a bending and bud-drawing mold, etc., the present embodiment only relates to the improvement of the drawing mold and the punching mold, and other molds may be the same as the prior art and are not described in detail.

The upper die part of the drawing die comprises an upper die plate 100 and an upper die base 200 which is positioned above the upper die plate 100 and fixedly connected with the upper die plate 100 into a whole, and the lower die part of the drawing die comprises a lower die plate 300 and a lower backing plate which is positioned below the lower die plate 300 and fixedly connected with the lower die plate 300 into a whole.

The upper die part of the punching die comprises an upper stripping plate 500 and a stop plate 600 which is positioned above the upper stripping plate 500 and fixedly connected with the upper stripping plate 500 into a whole, the lower die part of the punching die comprises a lower stripping plate 700 and a lower punching die plate 400400 which is positioned below the lower stripping plate 700 and fixedly connected with the lower stripping plate 700 into a whole, the upper stripping plate 500 is provided with a plurality of upper stripping plate inlet blocks 540, and the lower stripping plate 700 is provided with a plurality of lower stripping plate inlet blocks 740 which are correspondingly matched with the upper stripping plate inlet blocks 540 one by one.

As for the stretching die, as shown in fig. 2 to 5, in this embodiment, the upper die plate 100 includes an upper die plate body 110 and a plurality of upper die inserts 120, the upper die plate body 110 is provided with insert holes 111 penetrating through the thickness direction of the upper die plate body, the plurality of upper die inserts 120 are respectively provided with a first upper connecting structure 121 for detachably and fixedly connecting the upper die plate body to the upper die holder 200, and any one of the upper die inserts 120 is embedded in the insert hole 111 and detachably and fixedly connected to the upper die holder 200; the positions and sizes of the first upper connecting structures 121 of the plurality of upper die inserts 120 are all the same.

As shown in fig. 6 to 7, the lower template 300 includes a lower template body 310 and a plurality of lower mold inserts 320 that are matched with the plurality of upper mold inserts in a one-to-one correspondence manner, an insert groove 311 is formed on the lower template body 310, a first lower connecting structure 321 for detachably fixing the lower mold inserts 320 to the lower cushion plate is arranged on each of the plurality of lower mold inserts 320, and any lower mold insert 320 is embedded in the insert groove 311 and detachably fixed to the lower cushion plate; the first lower connecting structures 321 of the plurality of lower die inserts 320 are identical in position and size.

Specifically, the positions of the insert hole 111 and the insert groove 311 are aligned vertically, that is, the upper mold insert 120 and the lower mold insert 320 are aligned vertically, because the back plates of different models of televisions mainly have the shape in the internal area 2 defined by the t-shaped ribs 1 of the back plate of the television shown in fig. 1, the installation positions of the upper mold insert 120 and the lower mold insert 320 correspond to the internal area 2 defined by the t-shaped ribs 1 of the back plate of the television shown in fig. 1. In this embodiment, the positions and the sizes of the first upper connecting structures 121 of the plurality of upper die inserts 120 are all the same, the positions and the sizes of the first lower connecting structures 321 of the plurality of lower die inserts 320 are also all the same, preferably, the peripheral dimensions of the plurality of upper die inserts 120 are also the same, the peripheral dimensions of the plurality of lower die inserts 320 are also the same, taking the upper die inserts 120 shown in fig. 3 and 4 as an example, the positions and the sizes of the first upper connecting structures 121 on the upper die inserts 120 are the same, that is, if the two upper die inserts 120 shown in fig. 3 and 4 are vertically aligned and stacked, and the first upper connecting structures 121 on the upper die inserts are properly aligned and overlapped, the mounting positions of the two upper die inserts 120 when being fixed on the upper die holder 200 are the same, when the same different types of backboards of televisions of the general type of this embodiment are used to form the same type of backboards of televisions, only need to set the forming structures corresponding to the types of televisions one-to one on the plurality of upper die inserts 120, meanwhile, the lower die inserts 320 are provided with forming structures corresponding to the back plates of various televisions one by one, and the upper die inserts 120 and the lower die inserts 320 corresponding to the upper die inserts are only required to be replaced simultaneously without changing other structures of a forming die, so that the back plates of the televisions of the same type and different types can be formed in a universal stretching mode, the die opening number can be reduced, the die opening cost and the die manufacturing cost can be reduced, and the back plate forming period can be shortened.

In detail, as shown in fig. 3, the first upper connecting structure 121 in this embodiment includes a plurality of screw holes 121A and a plurality of positioning pin holes 121B, and the upper die holder 200 is correspondingly provided with a screw hole 210 matching with the screw hole 121A and a positioning pin hole 220 matching with the positioning pin hole 121B, wherein any one of the upper die inserts 120 is detachably fixed to the upper die holder 200 by a screw and a positioning pin. Specifically, the positioning pin passes through the positioning pin hole 121B and the positioning pin hole 220 to mount and position the upper die insert 120, and the screw is engaged with the screw hole 121A and the screw hole 210 to fasten the upper die insert 120 on the upper die base 200.

Similarly, as shown in fig. 7, the first lower connecting structure 321 includes a screw hole 321A and a positioning pin hole 321B, and the lower cushion plate is correspondingly provided with the screw hole and the positioning pin hole, wherein any one of the lower die inserts 320 is detachably fixed to the lower cushion plate through the screw and the positioning pin. Specifically, the lower die insert 320 is installed and positioned by a positioning pin passing through the positioning pin hole 321B and a positioning pin hole on the lower backing plate, and a screw is matched with the screw hole 321A and a screw hole on the lower backing plate to fasten the lower die insert 320 on the lower backing plate.

Since the upper mold plate 100 and the lower mold plate 300 are both in a splicing manner in this embodiment, due to the requirement of the molding quality of the backboard product, the gap between the upper mold plate body 110 and the upper mold insert 120 should be as small as possible, and similarly, the gap between the lower mold plate body 310 and the lower mold insert 320 should be as small as possible. As a preferred embodiment, in the present embodiment, the circumferential side surface of the upper die insert 120 is fittingly attached to the inner wall of the insert hole 111, and the circumferential side surface of the lower die insert 320 is fittingly attached to the circumferential side surface of the insert groove 311.

For the convenience of machining and the reduction of material cost, as shown in fig. 3, 4 and 7, the upper die insert 120 is formed by splicing two sub upper die inserts 122, and the lower die insert 320 is formed by splicing two sub lower die inserts 322. The single sub-upper die insert 122 and the single sub-lower die insert 322 have small volumes, are convenient to process, have relatively low cost, and have small weight and high safety in the production and manufacturing process of the die.

The general type TV set backplate forming die of this embodiment also can improve the commonality of cut-out press. Referring to fig. 8 and 9, the upper stripper plate 500 of the punch press includes an upper stripper plate body 510, a plurality of first upper stripper plate inserts 520, a plurality of second upper stripper plate inserts 530, the upper stripper plate body 510 and any one of the first upper stripper plate inserts 520 and any one of the second upper stripper plate inserts 530 being in-set with each other.

The plurality of first upper stripper inserts 520 are respectively provided with a second upper connecting structure 521 for detachably and fixedly connecting the plurality of first upper stripper inserts 520 to the stop plate 600, wherein any one of the plurality of first upper stripper inserts 520 is detachably and fixedly connected to the stop plate 600, and the positions and the sizes of the second upper connecting structures 521 of the plurality of first upper stripper inserts 520 are consistent;

the second upper stripper inserts 530 are provided with third upper connecting structures 531 for detachably connecting the second upper stripper inserts to the stop plate 600, wherein any one of the second upper stripper inserts 530 is detachably connected to the stop plate 600, and the positions and sizes of the third upper connecting structures 531 of the second upper stripper inserts 530 are the same.

Specifically, the positions of the first upper stripper insert 520 and the second upper stripper insert 530 on the upper stripper body 510 after being spliced correspond to the positions of the inner area 2 surrounded by the t-shaped ribs 1 of the tv back plate shown in fig. 1, so as to cooperate with the lower stripper 700 to punch the shape of the inner area 2, for example, punch a back plate mounting hole on the round convex hull 5. Compared with the existing integral plate type upper stripper plate, in the embodiment, the positions and the sizes of the second upper connecting structures 521 of the plurality of first upper stripper plate inserts 520 are all the same, the positions and the sizes of the third upper connecting structures 531 of the plurality of second upper stripper plate inserts 530 are also all the same, preferably, the peripheral profile sizes of the plurality of first upper stripper plate inserts 520 are also the same, and the peripheral profile sizes of the plurality of second upper stripper plate inserts 530 are also the same, so when the universal television backboard forming die of the embodiment is used for forming backboards of different models, only the plurality of first upper stripper plate inserts 520 and the plurality of second upper stripper plate inserts 530 are needed to be arranged, the upper stripper plate inlet blocks 540 on the upper stripper plate inserts are arranged differently, any one of the first upper stripper plate inserts 520 and the second upper stripper plate insert 530 corresponding to the upper stripper plate insert can be spliced to form a punching forming structure corresponding to the backboards of different models of televisions one-to-one without changing other structures of the upper die part of the punching die, the punching operation can be carried out on the TV set back plates of the same type and different types, so that the die opening quantity is further reduced, the die opening cost and the die manufacturing cost are reduced, and the back plate forming period is shortened.

In the same drawing die, for the punching die, the second upper connecting structure 521 includes a screw hole 521A and a positioning pin hole 521B, the stop plate 600 is correspondingly provided with a screw hole 610 and a positioning pin hole 620, and any one of the first upper stripper inserts 520 is detachably and fixedly connected to the stop plate 600 through a screw and a positioning pin; similarly, the third upper connecting structure 531 includes a screw hole 531A and a positioning pin hole 531B, the stop plate 600 is correspondingly provided with a screw hole and a positioning pin hole, and any one of the second upper stripper inserts 530 is detachably connected to the stop plate 600 through a screw and a positioning pin.

In order to further improve the versatility of the punching die, corresponding to the upper stripper 500, the lower stripper 700 in this embodiment includes a lower stripper body 710, a plurality of first lower stripper inserts 720, and a plurality of second lower stripper inserts 730, wherein the first lower stripper inserts 720 are in one-to-one corresponding fit with the first upper stripper inserts 520, the second lower stripper inserts 730 are in one-to-one corresponding fit with the second upper stripper inserts 530, and the lower stripper body 710, any one of the first lower stripper inserts 720, and any one of the second lower stripper inserts 730 are inlaid to form the lower stripper 700. Compare the lower board that takes off of current whole plate-type, take off board 700 down in this embodiment and adopt the polylith to inlay and piece, through selecting different first take off the board insert 720 under and second take off the board insert 730 and take off the board body 710 and inlay and piece down, then need not to change other structures of punching die lower mould part, then can punch a hole the operation to the TV set backplate of the different models of the same model, further reduce the die sinking quantity, reduce die sinking cost and mould manufacturing cost, shorten backplate shaping cycle.

Specifically, the plurality of first lower stripper inserts 720 are provided with second lower connecting structures 721 for detachably and fixedly connecting the plurality of first lower stripper inserts 720 to the lower die plate 400400 of the punching die, wherein any one of the first lower stripper inserts 720 is detachably and fixedly connected to the lower die plate 400400 of the punching die, and the positions and the sizes of the second lower connecting structures 721 of the plurality of first lower stripper inserts 720 are consistent; the second lower stripper plate inserts 730 are provided with third lower connecting structures 731 for detachably connecting the second lower stripper plate inserts to the lower die plate 400 of the punching die, wherein any one of the second lower stripper plate inserts 730 is detachably connected to the lower die plate 400 of the punching die, and the positions and the sizes of the third lower connecting structures 731 of the second lower stripper plate inserts 730 are consistent, so that the universal installation requirement is met.

In detail, the second lower connecting structure 721 comprises a screw hole 721A and a positioning pin hole 721B, the lower die plate 400 of the punching die is correspondingly provided with a screw hole 410 and a positioning pin hole 420, and any one of the first lower stripper inserts 720 is detachably fixed to the lower die plate 400 of the punching die by a screw and a positioning pin; the third lower connecting structure 731 includes a screw hole 731A and a positioning pin hole 731B, the lower plate 400 of the punching die is correspondingly provided with a screw hole 410 and a positioning pin hole 420, and any one of the second lower stripper inserts 730 is detachably connected to the lower plate 400 of the punching die through a screw and a positioning pin.

In addition, in the present embodiment, the upper stripper body 510 and the lower stripper body 710 are also formed by splicing a plurality of sub-plates, and as shown in fig. 8 and 10, the horizontal and vertical double straight lines in fig. 8 and 10 are the splicing seams between adjacent sub-blocks. The multiple sub-boards are regular rectangular boards, so that the processing is easy, the size of a single sub-board is small, the weight is light, and the operation safety is high in the production process of the die.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A general type TV set backplate forming die includes:

the upper die part of the drawing die comprises an upper die plate and an upper die base which is positioned above the upper die plate and fixedly connected with the upper die plate into a whole, and the lower die part of the drawing die comprises a lower die plate and a lower backing plate which is positioned below the lower die plate and fixedly connected with the lower die plate into a whole;

the upper die part of the punching die comprises an upper stripping plate and a stop plate which is positioned above the upper stripping plate and fixedly connected with the upper stripping plate into a whole, the lower die part of the punching die comprises a lower stripping plate and a lower punching die plate which is positioned below the lower stripping plate and fixedly connected with the lower stripping plate into a whole, the upper stripping plate is provided with a plurality of upper stripping plate inlet blocks, and the lower stripping plate is provided with a plurality of lower stripping plate inlet blocks which are correspondingly matched with the upper stripping plate inlet blocks one by one;

the die comprises an upper die plate, an upper die base, an upper die plate and a lower die plate, wherein the upper die plate comprises an upper die plate body and a plurality of upper die inserts, insert holes penetrating through the upper die plate body in the thickness direction are formed in the upper die plate body, a plurality of upper die inserts are respectively provided with a first upper connecting structure used for detachably and fixedly connecting the upper die inserts to the upper die base, and any one of the upper die inserts is embedded in the insert hole and detachably and fixedly connected to the upper die base; the positions and the sizes of the first upper connecting structures of the upper die insert blocks are consistent;

the lower template comprises a lower template body and a plurality of lower die inserts which are matched with the upper die inserts in a one-to-one correspondence manner, the lower template body is provided with an insert groove, the lower die inserts are respectively provided with a first lower connecting structure for detachably and fixedly connecting the lower die inserts to the lower backing plate, and any lower die insert is embedded in the insert groove and detachably and fixedly connected to the lower backing plate; the positions and the sizes of the first lower connecting structures of the lower die insert blocks are consistent.

2. The universal TV backplane molding tool according to claim 1,

the first upper connecting structure comprises a screw hole and a positioning pin hole, the upper die base is correspondingly provided with the screw hole and the positioning pin hole, and any one of the upper die insert is detachably and fixedly connected with the upper die base through a screw and a positioning pin.

3. The universal TV backplane molding tool according to claim 1,

the first lower connecting structure comprises a screw hole and a positioning pin hole, the lower base plate is correspondingly provided with the screw hole and the positioning pin hole, and the lower die insert is detachably and fixedly connected with the lower base plate through a screw and a positioning pin.

4. The universal TV backplane molding tool according to claim 1,

the circumferential side face of the upper die insert is in fit with the inner wall of the insert hole, and the circumferential side face of the lower die insert is in fit with the circumferential side face of the insert groove.

5. The universal TV backplane molding tool according to claim 1,

the upper die insert is formed by splicing two upper die inserts, and the lower die insert is formed by splicing two lower die inserts.

6. The universal TV backplane molding die according to any one of claims 1 to 5,

the upper stripper plate comprises an upper stripper plate body, a plurality of first upper stripper plate inserts and a plurality of second upper stripper plate inserts, wherein the upper stripper plate body and any one of the first upper stripper plate inserts and any one of the second upper stripper plate inserts are spliced with each other;

the first upper stripper inserts are respectively provided with a second upper connecting structure for detachably and fixedly connecting the first upper stripper inserts to the stop plate, any one of the first upper stripper inserts is detachably and fixedly connected to the stop plate, and the positions and the sizes of the second upper connecting structures of the first upper stripper inserts are consistent;

and the second upper stripper insert is provided with a third upper connecting structure used for fixedly connecting the second upper stripper insert with the third upper connecting structure of the stop plate in a detachable manner, wherein any one of the second upper stripper insert is fixedly connected with the stop plate in a detachable manner, and the second upper stripper insert is provided with a plurality of third upper connecting structures with consistent positions and sizes.

7. The universal TV backplane molding tool according to claim 6,

the second upper connecting structure comprises a screw hole and a positioning pin hole, the stop plate is correspondingly provided with the screw hole and the positioning pin hole, and any one of the first upper stripper plate insert blocks is detachably and fixedly connected to the stop plate through a screw and a positioning pin;

connection structure includes screw hole and locating pin hole on the third, it is equipped with screw hole and locating pin hole to correspond on the backstop board, wherein arbitrary take off on the second board insert through screw and locating pin detachably link firmly in the backstop board.

8. The universal TV backplane molding tool according to claim 6,

the lower stripper plate comprises a lower stripper plate body, a plurality of first lower stripper plate inserts and a plurality of second lower stripper plate inserts, wherein the first lower stripper plate inserts are matched with the first upper stripper plate inserts in a one-to-one corresponding manner, the second lower stripper plate inserts are matched with the second upper stripper plate inserts in a one-to-one corresponding manner, and the lower stripper plate body, any one of the first lower stripper plate inserts and any one of the second lower stripper plate inserts are mutually inlaid;

the plurality of first lower stripper inserts are respectively provided with a second lower connecting structure for detachably and fixedly connecting the first lower stripper inserts to the lower template of the punching die, any one of the first lower stripper inserts is detachably and fixedly connected to the lower template of the punching die, and the positions and the sizes of the second lower connecting structures of the plurality of first lower stripper inserts are consistent;

and a plurality of second lower stripper inserts are respectively provided with a third lower connecting structure used for fixedly connecting the second lower stripper inserts with the lower template of the punching die in a detachable manner, any one of the second lower stripper inserts is fixedly connected with the lower template of the punching die in a detachable manner, and the positions and the sizes of the third lower connecting structures of the second lower stripper inserts are consistent.

9. The universal TV backplane molding tool according to claim 8,

the second lower connecting structure comprises a screw hole and a positioning pin hole, the lower template of the punching die is correspondingly provided with the screw hole and the positioning pin hole, and any one of the first lower stripper inserts is detachably and fixedly connected to the lower template of the punching die through a screw and a positioning pin;

and the third lower connecting structure comprises a screw hole and a positioning pin hole, the lower template of the punching die is correspondingly provided with the screw hole and the positioning pin hole, and the second lower stripper insert is detachably and fixedly connected with the lower template of the punching die through a screw and a positioning pin.

10. The universal TV backplane molding tool according to claim 8,

the upper stripper plate body and the lower stripper plate body are formed by splicing a plurality of sub-plates.

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