CN213352698U

CN213352698U - Inverted steel cutter compound die

Info

Publication number: CN213352698U
Application number: CN202022305344.7U
Authority: CN
Inventors: 常利芳; 廖渝
Original assignee: Shenzhen Changfeng Laser Knife Mould Co ltd
Current assignee: Shenzhen Changfeng Laser Knife Mould Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-06-04
Anticipated expiration: 2030-10-15

Abstract

The utility model belongs to the technical field of the mould and specifically relates to a flip-chip steel sword compound die is related to, it includes the lower mould and locates the last mould of lower mould top, the lower mould upper surface is equipped with the product district that is used for placing the product, install a plurality of stamping tool in the product district. This application has the effect that improves flexible circuit board cutting efficiency.

Description

Inverted steel cutter compound die

Technical Field

The application relates to the field of dies, in particular to a flip-chip steel cutter compound die.

Background

At present, a solder mask is generally coated on the surface of a Flexible Printed Circuit (FPC) to improve the insulating property of the surface of a circuit, or prevent the circuit from generating scratches, or prevent conductive foreign matters from falling into the circuit to cause short circuit and the like, thereby achieving the purpose of protecting the circuit.

The flexible circuit board processing process generally includes the steps of cutting, electroplating, exposing, developing, cutting and the like. Wherein, the cutting is to cut a plurality of holes on the flexible circuit board to adapt to the shape of the circuit.

The existing method for cutting the flexible circuit board is to use a laser cutting machine to perform laser cutting, however, the laser cutting is performed by cutting holes one by one, and the cutting mode is low in efficiency.

In view of the above-mentioned related art, the inventors consider that there is a drawback that efficiency of laser cutting a flexible circuit board is low.

SUMMERY OF THE UTILITY MODEL

In order to improve flexible circuit board's cutting efficiency, this application provides a flip-chip formula steel sword compound die.

The application provides a flip-chip type steel sword compound die adopts following technical scheme:

the utility model provides a flip-chip steel sword compound die, includes the lower mould and locates the last mould of lower mould top, the lower mould upper surface is equipped with the product district that is used for placing the product, install a plurality of punching press cutters on the product district.

Through adopting above-mentioned technical scheme, through installing a plurality of punching press cutters on the product district of lower mould, place the back on the product district with flexible circuit board, flexible circuit board can cover the punching press cutter for when the upper die moves towards the lower mould, go up the mould and can press on flexible circuit board and punching press cutter, thereby make the punching press cutter carry out the punching press on flexible circuit board, reach the purpose of trompil on flexible circuit board. Because install a plurality of punching press cutters on the product district, such trompil mode can once only be opened out a plurality of holes on flexible circuit board promptly, has improved flexible circuit board's cutting efficiency greatly.

Preferably, the lower die comprises a knife board base plate, the upper surface of the knife board base plate is connected with a knife board, and the upper surface of the knife board is arranged in the product area.

Through adopting above-mentioned technical scheme, punching press cutter installs on the product district, and the cutting board upper surface is located in the product district, and the cutting board is located cutting board backing plate upper surface to install punching press cutter on the cutting board backing plate, such mounting means is convenient for the maintenance and the change after punching press cutter damages.

Preferably, the lower die is provided with an air suction device, the air suction device comprises a connecting plate arranged in a knife board backing plate, the connecting plate is connected with an air suction pipe, the connecting plate is also connected with a fixed block, the fixed block is arranged in the knife board, and the fixed block extends out of the knife board and extends to a product area; an air suction groove is formed in the connecting plate, an air suction channel is formed in the fixing block, and the air suction pipe and the air suction groove are communicated with the air suction channel.

By adopting the technical scheme, the air suction pipe and the fixed block are arranged, and the air suction pipe and the air suction groove are communicated with the air suction channel, namely the connecting plate and the air suction pipe are communicated with the fixed block. Connect the aspiration pump on the breathing pipe and place back on the product district with flexible circuit board, the aspiration pump can be through breathing pipe, suction groove and suction channel absorption flexible circuit board, not only can make placing that flexible circuit board is firm on the product district, when the mould presses on flexible circuit board in addition, flexible circuit board is difficult for taking place to warp, can also effectual reduction flexible circuit board surface coating drop, improves flexible circuit board's quality.

Preferably, a first elastic piece is arranged between the connecting plate and the cutter plate backing plate; the height of the fixed block extending out of the knife board is greater than that of the punching cutter.

Through adopting above-mentioned technical scheme, when the fixed block stretches out the outer height that highly is greater than the punching press cutter of cutting board, at the in-process of cutting flexible circuit board, can adsorb flexible circuit board through the getter device earlier, carry out the punching press to flexible circuit board again for flexible circuit board non-deformable more. Under the effect of first elastic component, connecting plate and fixed block can push down during the punching press flexible circuit board to do not influence the punching press of punching press cutter to flexible circuit board.

Preferably, at least one air suction channel is arranged on the fixed block.

Through adopting above-mentioned technical scheme, to a certain extent, the suction channel on the fixed block is more, and the getter device is better to flexible circuit board's adsorption effect, has the effect that improves flexible circuit board stability and quality.

Preferably, be equipped with the second elastic component in the cutting board, be equipped with the reference column on the second elastic component, the reference column upper end stretches out the cutting board outside, extends the product district, the reference column stretches out the height that highly is greater than the fixed block outside the cutting board and stretches out the cutting board.

By adopting the technical scheme, after the positioning hole is formed in the flexible circuit board, the positioning column penetrates through the positioning hole, the flexible circuit board can be positioned, and the flexible circuit board can be rapidly and accurately placed on the product area to be stamped conveniently. The second elastic piece enables the positioning column to be pressed down, and normal punching of the flexible circuit board by the punching tool is guaranteed.

Preferably, the punching tool has a blade angle of 28-32 °.

By adopting the technical scheme, the blade angle of 28-32 degrees is smaller, so that the coating is not easy to fall off when the flexible circuit board is punched by the punching channel cutter, and the effect of further improving the quality of the flexible circuit board is achieved.

Preferably, a gasket is arranged on the lower surface of the upper die above the product area.

Through adopting above-mentioned technical scheme, the gasket can effectually prevent to pass the damage that the butt caused the punching press cutter on last mould behind the flexible circuit board when punching press cutter punching press flexible circuit board, has the effect of protection punching press cutter, extension punching press cutter life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through installing a plurality of punching press cutters on the product district of lower mould, place the back on the product district with flexible circuit board, flexible circuit board can cover the punching press cutter for when the upper die moves towards the lower mould, go up the mould and can press on flexible circuit board and punching press cutter, thereby make the punching press cutter carry out the punching press on flexible circuit board, reach the purpose of trompil on flexible circuit board. Because install a plurality of punching press cutters on the product district, such trompil mode can once only be opened out a plurality of holes on flexible circuit board promptly, has improved flexible circuit board's cutting efficiency greatly.

2. Through setting up connecting plate, breathing pipe and fixed block, because breathing pipe, suction groove and suction duct intercommunication, connecting plate, breathing pipe and fixed block intercommunication promptly. Connect the aspiration pump on the breathing pipe and place back on the product district with flexible circuit board, the aspiration pump can be through breathing pipe, suction groove and suction channel absorption flexible circuit board, not only can make placing that flexible circuit board is firm on the product district, when the mould presses on flexible circuit board in addition, flexible circuit board is difficult for taking place to warp, can also effectual reduction flexible circuit board surface coating drop, improves flexible circuit board's quality.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of an exploded structure of a lower mold;

FIG. 3 is a schematic view of the upper mold and the gasket;

FIG. 4 is a schematic sectional view of the structure of a lower mold portion and an air sucking device;

FIG. 5 is a schematic view of the structure of the getter device;

FIG. 6 is a schematic structural view for showing the mounting post, the second elastic member and the positioning post;

fig. 7 is a partially enlarged schematic view of a portion a in fig. 6.

Description of reference numerals: 1. an upper die; 2. a lower die; 21. a lower base plate; 22. a cutting board backing plate; 23. a cutting board; 231. a product area; 24. a limiting plate; 3. a suction device; 31. a connecting plate; 311. a suction groove; 32. a fixed block; 321. an air intake duct; 33. an air intake duct; 4. punching a cutter; 5. a gasket; 6. a first elastic member; 71. mounting a column; 72. a second elastic member; 73. and a positioning column.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses flip-chip steel sword compound die. Referring to fig. 1, the inverted steel-cutter compound die comprises an upper die 1 and a lower die 2 which are matched with each other, and an air suction device 3 and a plurality of stamping cutters 4 are installed on the lower die 2. When the flexible circuit board is cut, the air suction device 3 adsorbs the flexible circuit board, and the stamping cutter 4 stamps the flexible circuit board.

Go up mould 1 and lower mould 2 and all install on the punching machine, go up mould 1 and install in lower mould 2 top. Go up mould 1 and make by the steel sheet, go up four apex angle departments of mould 1 and all pass through screw fixed connection in the punch press, go up mould 1 and can move up and down under the effect of punch press.

Referring to fig. 2, the lower mold 2 includes a lower pad plate 21, and four corners of the lower pad plate 21 are fixedly connected to the punch press by screws. The lower surface of the lower backing plate 21 is connected with a punch press, and the upper surface is provided with a knife plate backing plate 22.

The lower surface of the knife board backing plate 22 is connected with the lower backing plate 21, and the middle part of the upper surface is provided with a knife board 23. The upper surface of the cutting board 23 is a product area 231 for placing the flexible circuit board, and the plurality of punching tools 4 are uniformly distributed in the product area 231. After the flexible circuit board is placed on the product area 231, the flexible circuit board can cover the punching cutter 4.

The upper surface of the knife plate backing plate 22 is provided with a limiting plate 24 around the knife plate 23, and the height of the upper surface of the limiting plate 24 is equal to that of the punching cutter 4 so as to limit the punching depth.

Referring to fig. 1 and 2, after the flexible circuit board is placed on the product area 231, when the upper die 1 moves downward, the upper die 1 can press the flexible circuit board and the punching tool 4, and stops moving downward under the action of the limiting plate 24, so that the punching tool 4 punches on the flexible circuit board, and the purpose of forming a hole in the flexible circuit board is achieved. Because a plurality of stamping tools 4 are arranged on the product area 231, a plurality of holes can be formed on the flexible circuit board in a hole forming mode, and the cutting efficiency of the flexible circuit board is greatly improved.

Referring to fig. 2 and 3, in order to protect the punching tool 4, a gasket 5 is disposed on the lower surface of the upper die 1 in the length direction, the gasket 5 is a film, two ends of the gasket 5 extend to two ends of the upper die 1, and the gasket 5 is disposed above the product area 231. Can the butt after passing the flexible circuit board when 4 punching press flexible circuit boards of punching press cutters on having elastic gasket 5, avoided 4 direct butt of punching press cutters on last mould 1 made by the steel sheet to effectual damage of punching press cutters 4 has been prevented, has the effect of protection punching press cutters 4, extension punching press cutters 4 life.

Referring to fig. 2, preferably, the blade angle of the punching tool 4 is 30 °, and such a blade angle is small, so that when the punching tool 4 punches the flexible circuit board, the coating on the flexible circuit board is not easy to fall off, and the effect of improving the quality of the flexible circuit board is achieved. In the present embodiment, the blade angle of the punching tool 4 is 30 °, and in other embodiments, the blade angle may also be 28 °, 29 °, 31 °, or 32 °.

Referring to fig. 4, further, the getter device 3 contributes to further improve the quality of the flexible circuit board. The air suction device 3 includes a connecting plate 31, a fixing block 32, and an air suction pipe 33.

Referring to fig. 4, the middle portion of the upper surface of the shim plate 22 is recessed downward, and the connecting plate 31 is embedded in the shim plate 22. A plurality of first elastic pieces 6 are arranged between the connecting plate 31 and the knife board backing plate 22, the first elastic pieces 6 are springs, one end of each first elastic piece 6 is fixedly connected to the lower surface of the connecting plate 31, and the other end of each first elastic piece 6 is fixedly connected to the upper surface of the knife board backing plate 22, so that the connecting plate 31 can move up and down. As shown in fig. 5, the connection plate 31 has a plurality of mutually connected suction grooves 311 formed therein, and the suction grooves 311 penetrate both ends of the connection plate 31.

Referring to fig. 4, the fixing block 32 is disposed through the cutting plate 23, a lower end of the fixing block 32 is connected to an upper surface of the connecting plate 31, and an upper end of the fixing block extends out of the upper surface of the cutting plate 23 to the product area 231. When the first elastic element 6 is in a natural state, the height of a section of the upper end of the fixed block 32 extending out of the knife board 23 is greater than the height of the punching cutter 4; when the first elastic element 6 is in a compressed state, the height of the upper end of the fixing block 32 extending out of the knife plate 23 can be smaller than the height of the punching tool 4 and smaller than the height of the upper surface of the limit plate 24 (see fig. 2). As shown in fig. 5, four air suction channels 321 are vertically formed in each fixing block 32, the upper end and the lower end of each air suction channel 321 respectively penetrate through the upper end and the lower end of the fixing block 32, and the lower end of each air suction channel 321 is communicated with the air suction groove 311. Wherein, the fixed block 32 is equal to the punching cutter 4, and the fixed block 32 corresponds to the punching cutter 4 one by one.

Referring to fig. 4, two air suction pipes 33 are embedded in the cutter plate backing plate 22, and the two air suction pipes 33 are connected to two ends of the connecting plate 31. The suction pipe 33 is substantially L-shaped as a whole, and one end of the suction pipe 33 is fixedly connected to the connecting plate 31 and communicates with the suction groove 311 (see fig. 5), and the other end thereof extends out of the same side edge of the cutting board support plate 22. The end of the air suction pipe 33 extending out of the edge of the cutter plate backing plate 22 can be connected with an air suction pump.

Referring to fig. 2 and 4, since the suction channel 321 communicates with the suction groove 311 and the suction pipe 33 communicates with the suction groove 311, that is, the connection plate 31 and the suction pipe 33 communicate with the fixing block 32. After the suction pipe 33 is connected with the suction pump and the flexible circuit board is placed on the product area 231, the suction pump can suck the flexible circuit board through the suction pipe 33, the suction groove 311 and the suction channel 321, and then the upper die 1 (see fig. 1) moves downwards and presses on the flexible circuit board to drive the connecting plate 31 and the fixing block 32 to press downwards until the upper die 1 abuts against the limiting plate 24, so that the punching of the flexible circuit board by the punching tool 4 is completed.

Referring to fig. 4, the suction device 3 is arranged to enable the flexible circuit board to be always kept adsorbed in the punching process, so that the flexible circuit board can be stably placed on the product area 231, and when the upper die 1 (see fig. 1) presses the flexible circuit board, the flexible circuit board is not easy to deform, the falling of the surface coating of the flexible circuit board can be effectively reduced, and the quality of the flexible circuit board is further improved.

Referring to fig. 6 and 7, in a preferred embodiment, the knife plate 23 is fixedly connected with a plurality of mounting posts 71 in the product area 231 (see fig. 2), the mounting posts 71 are connected with second elastic members 72, the second elastic members 72 are springs, the lower ends of the second elastic members 72 are fixedly connected with the mounting posts 71, the upper ends of the second elastic members 72 are fixedly connected with positioning posts 73, the upper ends of the positioning posts 73 extend out of the upper surface of the knife plate 23 and extend to the product area 231, and the positioning posts 73 can move up and down under the action of the second elastic members 72. When the second elastic element 72 is in a natural state, the height of the section of the upper end of the positioning column 73 extending out of the knife plate 23 is greater than the height of the section of the upper end of the fixed block 32 extending out of the knife plate 23, and when the second elastic element 72 is in a compressed state, the height of the section of the upper end of the positioning column 73 extending out of the knife plate 23 can be equal to the height of the punching tool 4 and equal to the height of the upper surface of the limiting plate 24.

Referring to fig. 1 and 6, after the positioning hole is formed in the flexible circuit board, the positioning column 73 penetrates through the positioning hole, the upper die 1 moves downward and then presses on the positioning column 73, the positioning column 73 moves downward and then the upper die 1 presses on the flexible circuit board, and then the connecting plate 31 and the fixing block 32 are driven to press downward. The positioning posts 73 serve as a positioning feature for the flexible circuit board, and facilitate the flexible circuit board to be placed on the product area 231 (see fig. 4) for punching quickly and accurately. Preferably, the upper end of the positioning post 73 is a pointed end, so that the positioning post 73 can more easily pass through the positioning hole.

The implementation principle of the flip-chip steel cutter compound die of the embodiment of the application is as follows: when the flexible circuit board is cut, the flexible circuit board is placed on the product area 231, when the upper die 1 moves downwards, the upper die 1 moves downwards and then is pressed on the positioning column 73, the positioning column 73 moves downwards and then the upper die 1 presses the flexible circuit board again, the connecting plate 31 and the fixing block 32 are driven to press downwards, and finally the upper die 1 stops moving downwards under the action of the limiting plate 24, so that the punching tool 4 performs punching on the flexible circuit board, and the purpose of forming holes in the flexible circuit board is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flip-chip type steel sword compound die which characterized in that: including lower mould (2) and last mould (1) of locating lower mould (2) top, lower mould (2) upper surface is equipped with product area (231) that are used for placing the product, install a plurality of stamping tool (4) on product area (231).

2. The compound die of claim 1, wherein: lower mould (2) include cutting board backing plate (22), cutting board backing plate (22) upper surface is connected with cutting board (23), cutting board (23) upper surface is located in product district (231).

3. The inverted steel blade compound die as claimed in claim 2, wherein: the lower die (2) is provided with an air suction device (3), the air suction device (3) comprises a connecting plate (31) arranged in a knife board backing plate (22), the connecting plate (31) is connected with an air suction pipe (33), the connecting plate (31) is also connected with a fixed block (32), the fixed block (32) is arranged in the knife board (23), and the fixed block (32) extends out of the knife board (23) and extends to a product area (231); an air suction groove (311) is formed in the connecting plate (31), an air suction channel (321) is formed in the fixing block (32), and the air suction pipe (33) and the air suction groove (311) are communicated with the air suction channel (321).

4. The inverted steel blade compound die as claimed in claim 3, wherein: a first elastic piece (6) is arranged between the connecting plate (31) and the cutter plate backing plate (22); the height of the fixed block (32) extending out of the knife board (23) is greater than that of the punching cutter (4).

5. The inverted steel blade compound die as claimed in claim 3, wherein: at least one air suction channel (321) is arranged on the fixed block (32).

6. The inverted steel blade compound die as claimed in claim 4, wherein: be equipped with second elastic component (72) in cutting board (23), be equipped with reference column (73) on second elastic component (72), reference column (73) upper end stretches out cutting board (23) outer, extends product area (231), reference column (73) stretch out the outer height that highly is greater than fixed block (32) and stretches out cutting board (23) outside cutting board (23).

7. The compound die of claim 1, wherein: the angle of the blade point of the stamping cutter (4) is 28-32 degrees.

8. The compound die of claim 1, wherein: and a gasket (5) is arranged on the lower surface of the upper die (1) above the product area (231).