CN111300802A

CN111300802A - Stamping die for computer keyboard

Info

Publication number: CN111300802A
Application number: CN202010259049.4A
Authority: CN
Inventors: 赵正
Original assignee: Suzhou Haoyuan Precision Mould Co Ltd
Current assignee: Suzhou Haoyuan Precision Mould Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-06-19

Abstract

The invention discloses a stamping die for a computer keyboard, which comprises an upper die plate and a lower die plate which are oppositely arranged, wherein an upper die core is arranged on the upper die plate, and a lower die core is arranged on the lower die plate. The upper die core comprises an upper die core plate, and a plurality of stamping lugs matched with the keyboard key grid in shape are arranged at the lower end of the upper die core plate. The upper die plate is provided with a groove positioned at the upper end of the upper die core plate, and the groove is internally provided with a pushing assembly. The pushing assembly comprises a pushing plate capable of moving up and down, the upper end of the pushing plate is connected with a spring group fixedly connected in the groove, the lower end of the pushing plate is provided with a plurality of pushing convex columns movably penetrating through the upper die core plate, and each pushing convex column is positioned between two adjacent stamping convex blocks; and a limiting component for preventing the upper mold core and the lower mold core from mold closing deviation is also arranged between the upper mold plate and the upper mold plate. The stamping die disclosed by the invention not only can conveniently take out a stamped finished product, but also avoids the problem of quality of the stamped finished product caused by die assembly position offset.

Description

Stamping die for computer keyboard

Technical Field

The invention relates to the technical field of computer accessory production equipment, in particular to a stamping die for a computer keyboard.

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in the stamping process, and becomes a cold stamping die (commonly called cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation thereof, thereby obtaining a desired part. The quality, production efficiency, production cost and the like of the stamping part have direct relation with the design and manufacture of the stamping die.

The computer keyboard production process can also use a stamping die, and the stamping forming of the keyboard is completed by utilizing the stamping process. However, the existing stamping die has the problem of difficult demoulding, and the keyboard surface is of an inwards concave arc structure, so that the keyboard is easily embedded in the stamping groove and is difficult to take out after stamping is completed; in addition, when the stamping die is closed, the stamping die is easily influenced by external force to generate position deviation, so that the stamping quality of the keyboard is influenced.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide the stamping die for the computer keyboard, which not only improves the convenience of demoulding and can quickly take out a stamped finished product, but also avoids the problem of quality of the stamped finished product caused by the deviation of a die assembly position.

In order to achieve the above purposes, the invention adopts the technical scheme that: the utility model provides a stamping die for computer keyboard, includes relative cope match-plate pattern, the lower bolster that sets up, install the mold core on the cope match-plate pattern, install on the lower bolster with go up mold core complex lower mold core. The upper die core comprises an upper die core plate, and a plurality of stamping lugs matched with the keyboard key grid in shape are arranged at the lower end of the upper die core plate. The upper die plate is provided with a groove positioned at the upper end of the upper die core plate, and the groove is internally provided with a pushing assembly convenient for demoulding. The pushing assembly comprises a pushing plate capable of moving up and down, the upper end of the pushing plate is connected with a spring group fixedly connected in the groove, the lower end of the pushing plate is provided with a plurality of pushing convex columns movably arranged on the upper die core plate in a penetrating mode, and each pushing convex column is located between two adjacent stamping convex blocks. And a limiting component for preventing the upper mold core and the lower mold core from mold closing deviation is also arranged between the upper mold plate and the upper mold plate.

The invention has the beneficial effects that: the problem of die assembly offset is effectively avoided by the arrangement of the limiting component; the pushing component is arranged to realize the pushing of the plate during demoulding, so that the plate can be demoulded quickly; when the die is closed, a plate is placed on the lower die core, and when the upper die core moves towards the lower die core, the pushing component moves downwards along with the upper die core and drives the pushing convex columns to be pressed against the plate; along with the continuous downward movement of the upper mold core, the pushing convex column is forced to move upwards along the upper mold core plate and drives the pushing plate to move upwards along the groove, and at the moment, the spring group is in a compressed state; when the die is opened, the upper die plate moves upwards, the spring group rebounds and drives the pushing plate to move downwards along the groove, and the pushing convex column can still be pressed on the punch-formed plate, so that the plate is separated from the upper die core; the pushing convex columns are sequentially arranged between two adjacent stamping convex blocks, so that the pushing force applied to the plate is more uniform, and the phenomenon of demoulding and damage of a single formed key grid is effectively reduced; the stamping die provided by the invention not only improves the convenience of demoulding and can quickly take out a stamped finished product, but also avoids the problem of quality of the stamped finished product caused by die assembly position offset.

Further, when the spring assembly is in a natural state, the lower end surface of the pushing convex column is higher than the lower end surface of the stamping convex block. The lower end face of the pushing convex column is set to be higher than the lower end face of the stamping convex block, so that when the die is closed, the stamping convex block is in contact with a plate and performs stamping, and further the influence of the pushing convex column on the die closing is avoided.

Further, the spring group comprises a plurality of groups of springs arranged in the vertical direction, one end of each spring is fixedly connected in the groove through a spring seat, and the other end of each spring is fixedly connected with the pushing plate.

Furthermore, the upper end of the lower mold core is provided with stamping grooves corresponding to the stamping lugs one to one, and a pressing surface for the pushing convex columns to press is limited between every two adjacent stamping grooves. When the die is closed, the stamping convex block presses the sheet material into the stamping groove to form a keyboard key grid, and meanwhile, the pushing convex column presses the sheet material on the pressing surface.

Further, the limiting assembly comprises a limiting groove and a limiting lug which are matched with each other. The limiting grooves are arranged on the lower template in pairs and are positioned on two sides of the lower mold core. The limiting lugs are arranged on the upper die plate in pairs and are positioned on two sides of the upper die core. And a limiting part for limiting the limiting lug is further arranged in the limiting groove. The transverse limiting of the pressing position of the upper template and the lower template is realized through the arrangement of the limiting convex blocks and the limiting grooves, and further the transverse deviation of the upper mold core during moving is avoided.

Further, the limiting part comprises transverse grooves symmetrically arranged on the side walls of the limiting grooves, and positioning beads extending into the limiting grooves are arranged in the transverse grooves. The side wall of the limiting convex block is symmetrically provided with ball grooves which are in one-to-one correspondence with the positioning balls. When spacing lug was embedded into spacing recess in, the location pearl can be embedded into the ball inslot to the realization is to spacing on the spacing lug direction of height.

Further, the bottom of the limiting groove is also provided with a boss, and the bottom of the limiting lug is provided with an embedding groove used for embedding the boss. The arrangement of the lug boss and the caulking groove further enhances the limiting effect.

Furthermore, the top of the boss is provided with a round table-shaped structure which is convenient to be embedded into the caulking groove, and the top of the caulking groove is provided with an elastic buffer layer which is used for compressing the round table-shaped structure.

Further, the lower template is fixedly connected to a lower die base through bolts, the upper template is fixedly connected to an upper die base through bolts, and a guide upright post penetrating through the upper die base is fixedly connected to the lower die base; the upper end of the upper die base is connected with a driving cylinder for driving the upper die base to move.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cut-away schematic view of an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

In the figure:

1-upper template; 11-a groove; 2-a lower template; 3, mounting a mold core; 31-upper die core plate; 32-stamping a bump; 4-lower mold core; 41-punching a groove; 42-abutment surface; 51-a top push plate; 52-spring set; 53-pushing convex columns; 61-a limiting groove; 611-a transverse groove; 612-a positioning bead; 613-boss; 62-a limit bump; 621-ball groove; 622-caulking groove; 623-an elastic buffer layer; 7-a lower die base; 71-a guide upright post; 8-upper mould base.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Examples

Referring to the attached drawings 1-2, the stamping die for the computer keyboard comprises an upper die plate 1 and a lower die plate 2 which are arranged oppositely, wherein an upper die core 3 is installed on the upper die plate 1, and a lower die core 4 matched with the upper die core 3 is installed on the lower die plate 2. The upper mold core 3 comprises an upper mold core plate 31, and a plurality of stamping lugs 32 matched with the keyboard key grid in shape are arranged at the lower end of the upper mold core plate 31. The upper die plate 1 is provided with a groove 11 positioned at the upper end of the upper die core plate 31, and a pushing assembly convenient for demoulding is arranged in the groove 11. The pushing assembly comprises a pushing plate 51 capable of moving up and down, the upper end of the pushing plate 51 is connected with a spring group 52 fixedly connected in the groove 11, the lower end of the pushing plate is provided with a plurality of pushing convex columns 53 movably arranged on the upper die core plate 31 in a penetrating manner, and each pushing convex column 53 is positioned between two adjacent stamping convex blocks 32. And a limiting component for preventing the upper mold core 3 and the lower mold core 4 from mold closing and deviating is further arranged between the upper mold plate 1 and the upper mold plate 2.

The problem of die assembly offset is effectively avoided by the arrangement of the limiting component; the pushing component is arranged to realize the pushing of the plate during demoulding, so that the plate can be demoulded quickly; when the die is closed, a plate is placed on the lower die core 4, and when the upper die core 3 moves towards the lower die core 4, the pushing component moves downwards along with the upper die core and drives the pushing convex columns 43 to be pressed against the plate; with the continuous downward movement of the upper mold core 3, the pushing convex column 53 is forced to move upward along the upper mold core plate 31, and drives the pushing plate 51 to move upward along the groove 11, and at the moment, the spring group 52 is in a compressed state; when the mold is opened, the upper mold plate 1 moves upwards, the spring group 52 rebounds and drives the pushing plate 51 to move downwards along the groove 11, and the pushing convex column 53 can still be pressed on the punch-formed plate, so that the plate is separated from the upper mold core 3; the pushing convex columns 53 are sequentially arranged between two adjacent stamping convex blocks 32, so that the pushing force applied to the plate is more uniform, and the phenomenon of demoulding and damage of a single formed key grid is effectively reduced

When the spring assembly 52 is in a natural state, the lower end surface of the pushing boss 53 is higher than the lower end surface of the stamping protrusion 32. The lower end face of the pushing convex column 53 is set to be higher than the lower end face of the stamping convex block 32, so that when the die is closed, the stamping convex block 32 is contacted with a plate in advance and performs stamping, and further the influence of the pushing convex column 53 on the die closing is avoided.

The spring set 52 comprises a plurality of sets of springs arranged along the vertical direction, one end of each spring is fixedly connected in the groove 11 through a spring seat, and the other end of each spring is fixedly connected with the ejector plate 51. The multiple groups of springs can be arranged to uniformly apply force to the pushing plate 51, so that the moving stability of the multiple pushing convex columns 53 is ensured.

The upper end of the lower mold core 4 is provided with stamping grooves 41 corresponding to the stamping lugs 32 one by one, and a pressing surface 42 for the pushing convex column 53 to press is defined between two adjacent stamping grooves 41. When the die is closed, the stamping convex block 32 presses the sheet material into the stamping groove 41 to form the keyboard key grid, and meanwhile, the pushing convex column 53 presses the sheet material on the pressing surface 42.

Referring to fig. 3, the limiting assembly comprises a limiting groove 61 and a limiting lug 62 which are matched with each other. The limiting grooves 61 are arranged on the lower template 2 in pairs and are positioned at two sides of the lower mold core 4. The limiting lugs 62 are arranged on the upper die plate 1 in pairs and are positioned at two sides of the upper die core 3. A limiting part for limiting the limiting bump 62 is further arranged in the limiting groove 61. The limiting member comprises transverse grooves 611 symmetrically arranged on the side walls of the limiting groove 61, and positioning beads 612 extending into the limiting groove 61 are arranged in the transverse grooves 611. The side wall of the limit bump 62 is symmetrically provided with ball grooves 621 corresponding to the positioning balls 612 one to one. When the position-limiting protrusion 62 is inserted into the position-limiting groove 61, the positioning ball 612 can be inserted into the ball groove 621. The transverse limit of the pressing position of the upper template 1 and the lower template 2 is realized through the arrangement of the limit convex block 62 and the limit groove 61, and further the transverse deviation when the upper die core 3 moves is avoided. The limiting of the limiting bump 62 in the height direction in the die closing state is realized through the arrangement of the positioning bead 612 and the ball groove 621, and further the vertical deviation of the upper die core 3 in the die closing state is avoided.

The bottom of the limiting groove 61 is further provided with a boss 613, and the bottom of the limiting projection 62 is provided with a caulking groove 622 for being embedded into the boss 613. The top of the boss 613 is provided with a truncated cone-shaped structure which is convenient to be embedded into the caulking groove 622, and the top of the caulking groove 622 is provided with an elastic buffer layer 623 which is used for compressing the truncated cone-shaped structure. The arrangement of the lug boss and the caulking groove further enhances the limiting effect.

The lower template 2 is fixedly connected to the lower die base 7 through bolts, the upper template 1 is fixedly connected to the upper die base 8 through bolts, and the lower die base 7 is fixedly connected with a guide upright 71 penetrating through the upper die base 8. The upper end of the upper die base 8 is connected with a driving cylinder (not shown in the figure) for driving the upper die base to move.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A stamping die for a computer keyboard comprises an upper template (1) and a lower template (2) which are arranged oppositely, wherein an upper die core (3) is installed on the upper template (1), and a lower die core (4) matched with the upper die core (3) is installed on the lower template (2); the method is characterized in that: the upper mold core (3) comprises an upper mold core plate (31), and the lower end of the upper mold core plate (31) is provided with a plurality of stamping lugs (32) matched with the keyboard key grid in shape; a groove (11) positioned at the upper end of the upper die core plate (31) is formed in the upper die plate (1), and a pushing assembly convenient for demolding is arranged in the groove (11); the pushing assembly comprises a pushing plate (51) capable of moving up and down, the upper end of the pushing plate (51) is connected with a spring group (52) fixedly connected in the groove (11), the lower end of the pushing plate is provided with a plurality of pushing convex columns (53) movably arranged on the upper die core plate (31) in a penetrating mode, and each pushing convex column (53) is located between every two adjacent stamping convex blocks (32); and a limiting component for preventing the upper mold core (3) and the lower mold core (4) from mold closing and offsetting is further arranged between the upper mold plate (1) and the upper mold plate (2).

2. The stamping die of claim 1, wherein: when the spring set (52) is in a natural state, the lower end surface of the pushing convex column (53) is higher than the lower end surface of the stamping convex block (32).

3. The stamping die of claim 2, wherein: the spring group (52) comprises a plurality of groups of springs arranged in the vertical direction, one end of each spring is fixedly connected in the groove (11) through a spring seat, and the other end of each spring is fixedly connected with the pushing plate (51).

4. The stamping die of claim 2, wherein: the upper end of the lower mold core (3) is provided with stamping grooves (41) which correspond to the stamping lugs (32) one by one, and a pressing surface (42) for the pushing convex column (53) to press is limited and formed between every two adjacent stamping grooves (41).

5. The stamping die of any one of claims 1-4, wherein: the limiting assembly comprises a limiting groove (61) and a limiting lug (62) which are matched with each other; the limiting grooves (61) are arranged on the lower template (2) in pairs and are positioned at two sides of the lower mold core (4); the limiting lugs (62) are arranged on the upper template (1) in pairs and are positioned at two sides of the upper mold core (3); and a limiting part for limiting the limiting bump (62) is further arranged in the limiting groove (61).

6. The stamping die of claim 5, wherein: the limiting piece comprises transverse grooves (611) symmetrically arranged on the side walls of the limiting groove (61), and positioning beads (612) extending into the limiting groove (61) are arranged in the transverse grooves (611); the side wall of the limiting bump (62) is symmetrically provided with ball grooves (621) which correspond to the positioning balls (612) one to one.

7. The stamping die of claim 5, wherein: the bottom of the limiting groove (61) is also provided with a boss (613), and the bottom of the limiting lug (62) is provided with an embedding groove (622) used for being embedded into the boss (613).

8. The stamping die of claim 7, wherein: the top of the boss (613) is provided with a truncated cone-shaped structure which is convenient to be embedded into the caulking groove (622), and the top of the caulking groove (622) is provided with an elastic buffer layer (623) used for compressing the truncated cone-shaped structure.

9. The stamping die of claim 1, wherein: the lower template (2) is fixedly connected to a lower die base (7) through bolts, the upper template (1) is fixedly connected to an upper die base (8) through bolts, and a guide upright post (71) penetrating through the upper die base (8) is fixedly connected to the lower die base (7); the upper end of the upper die base (8) is connected with a driving cylinder for driving the upper die base to move.