CN216505672U

CN216505672U - Circuit board copper foil side cut cutting die

Info

Publication number: CN216505672U
Application number: CN202122966331.9U
Authority: CN
Inventors: 张金友
Original assignee: Zhuhai Hezheng Flexible Circuit Board Co ltd
Current assignee: Zhuhai Hezheng Flexible Circuit Board Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-13
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a circuit board copper foil trimming cutting die which comprises an upper die and a lower die which are distributed up and down, wherein a first waste groove extending forwards and backwards is concavely arranged on the left side of the upper end of the lower die, a second waste groove extending leftwards and rightwards is concavely arranged on the front side of the upper end of the lower die, guide grooves are concavely arranged at four corners of the upper end of the lower die respectively, a material taking groove extending from the left front side to the right upper side is concavely arranged in the upper end area of the lower die on the right side of the first waste groove and the rear side of the second waste groove, the front end of the first waste groove is communicated with the left end of the second waste groove, a first positioning column is arranged on the right side of the first waste groove, a second positioning column is arranged on the rear side of the second waste groove, an L-shaped cutting edge corresponding to the positions of the first waste groove and the second waste groove is arranged on the upper die, a plurality of empty avoiding grooves corresponding to the positions of the first positioning column and the second positioning column are concavely arranged at the lower corners of the upper die, and guide bosses corresponding to the guide groove-shaped positions are convexly arranged respectively.

Description

Circuit board copper foil side cut cutting die

Technical Field

The utility model relates to a circuit board copper foil trimming cutting die.

Background

In the manufacturing process of the circuit board, the copper foil is required to be pressed on the core board, in order to ensure that the copper foil can completely cover the core board, the area of the copper foil is usually slightly larger than that of the core board, and therefore, after the pressing is finished, the part of the copper foil waste material exceeding the core board needs to be cut off, so that the subsequent processes are prevented from being influenced by the redundant waste material. At present, a set of punching die is often required to be independently opened for cutting off waste materials aiming at circuit board products of each model, so that a plurality of sets of dies are simultaneously arranged to increase the management difficulty, different dies are required to be used for producing different models, and the production efficiency is influenced by long die changing time.

Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the technology and provides the circuit board copper foil trimming cutting die.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a circuit board copper foil side cut cutting die, includes upper die 1 and lower mould 2 that distributes from top to bottom, the first dirty tank 21 that extends around the upper end left side of lower mould 2 is concavely equipped with, the second dirty tank 22 that extends about the upper end front side is concavely equipped with, the upper end four corners is concavely equipped with direction recess 23 respectively, the lower mould 2 upper end region of first dirty tank 21 right side, second dirty tank 22 rear side is concavely equipped with from left front side to upper right side extension material taking groove 24, first dirty tank 21 front end and second dirty tank 22 left end intercommunication, first dirty tank 21 right side is equipped with first reference column 25, second dirty tank 22 rear side is equipped with second reference column 26, upper die 1 is equipped with the L shape cutting edge 11 that corresponds with first dirty tank 21, second dirty tank 22 position, the lower extreme of upper die 1 is concavely equipped with a plurality of empty groove 12 that keep away that correspond with first reference column 25 and second reference column 26 position, the, And guide bosses 13 corresponding to the shape and the position of the guide groove 23 are respectively arranged at four corners of the lower end in a protruding manner.

Preferably, the first positioning column 25 has a plurality of front and back positioning columns, and the second positioning column 26 also has a plurality of left and right positioning columns so as to adapt to circuit boards with different sizes.

Preferably, the shape of the inner contour of the fixed guide groove 23 is a regular quadrangular frustum pyramid which gradually becomes thicker from bottom to top, and the shape of the guide boss 13 is also a regular quadrangular frustum pyramid which gradually becomes thicker from bottom to top so that the upper die and the lower die are gradually aligned in the die closing process.

Preferably, the heights of the first positioning column 25 and the second positioning column 26 are both smaller than the depth of the guide groove 23.

Preferably, it is wooden to go up mould 1, lower mould 2 and direction boss 13, cutting edge 11, first reference column 25 and second reference column 26 are the metal, cutting edge 11 is fixed in last mould 1 through inlaying, first reference column 25 and second reference column 26 are fixed in lower mould 2 through inlaying, first reference column 25 and second reference column 26 diameter less than or equal to 2 mm.

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

when the cutting die is used, the circuit board is placed into the lower die and sleeved with the first positioning column and the second positioning column for positioning, the left side of the circuit board is located at the edge of the first waste material groove, the front side of the circuit board is located at the edge of the second waste material groove, then the upper die is closed, copper foil waste materials at the edge of the circuit board can be cut off by the cutting edge, the circuit board is taken out quickly through the material taking groove, the circuit board is horizontally rotated by 180 degrees and then the operation is repeated, and therefore the copper foil waste materials at the four sides of the circuit board can be cut off. The present case cutting die is applicable in the circuit board that the length and width size is less than the cutting edge size, only need with the locating hole position size on the circuit board according to this case cutting die reference column and cutting edge position relation set up can, like this alright accomplish the copper foil waste material cutting of multiple size circuit board with one set of cutting die, greatly reduced the management degree of difficulty of mould, thereby also reduced the time of retooling simultaneously and also can improve production efficiency.

Drawings

FIG. 1 is a schematic view of a copper foil trimming cutting die for a circuit board according to the present invention.

Fig. 2 is a schematic view of the lower die of the present case.

Fig. 3 is a schematic diagram of an upper die of the present application.

Detailed Description

The features of the present invention and other related features are further described in detail below by way of examples to facilitate understanding by those skilled in the art:

as shown in fig. 1 to 3, a circuit board copper foil trimming cutting die comprises an upper die 1 and a lower die 2 which are vertically distributed, wherein a first waste trough 21 extending forwards and backwards is concavely arranged on the left side of the upper end of the lower die 2, a second waste trough 22 extending left and right is concavely arranged on the front side of the upper end of the lower die 2, four corners of the upper end of the lower die are concavely provided with guide grooves 23, a material taking trough 24 extending from the left front side to the right upper side is concavely arranged in the upper end area of the lower die 2 on the right side of the first waste trough 21 and the rear side of the second waste trough 22, the front end of the first waste trough 21 is communicated with the left end of the second waste trough 22, a first positioning column 25 is arranged on the right side of the first waste trough 21, a second positioning column 26 is arranged on the rear side of the second waste trough 22, the upper die 1 is provided with an L-shaped cutting edge 11 corresponding to the positions of the first waste trough 21 and the second waste trough 22, and a plurality of positioning columns 12 corresponding to the positions of the first positioning column 25 and the second positioning column 26 are concavely arranged on the lower end of the upper die 1, And guide bosses 13 corresponding to the shape and the position of the guide groove 23 are respectively arranged at four corners of the lower end in a protruding manner.

As mentioned above, when the cutting die is used, the circuit board is firstly placed into the lower die 2 and sleeved into the first positioning column 25 and the second positioning column 26 for positioning, the left side of the circuit board is located at the edge of the first waste trough 21, the front side of the circuit board is located at the edge of the second waste trough 22, then the upper die 1 is closed, copper foil waste at the edge of the circuit board can be cut off by the aid of the cutting edge 11, then the circuit board is quickly taken out through the material taking trough 24, the circuit board is horizontally rotated for 180 degrees, and the operation is repeated, so that the copper foil waste at the four sides of the circuit board can be cut off. The present case cutting die is applicable in the circuit board that length and width size is less than 11 sizes of cutting edge, only need with the locating hole position size on the circuit board according to this case cutting die reference column and 11 position relation settings of cutting edge can, like this alright accomplish the cutting of the copper foil waste material of multiple size circuit board with one set of cutting die, greatly reduced the management degree of difficulty of mould, thereby also reduced the time of retooling simultaneously and also can improve production efficiency.

As shown in fig. 1 to 2, preferably, the first positioning posts 25 have a plurality of front-back distributed positioning posts, and the second positioning posts 26 also have a plurality of left-right distributed positioning posts so as to adapt to circuit boards with different sizes.

As shown in fig. 1 to 3, preferably, the inner contour of the fixed guide groove 23 is a regular square frustum with a gradually increasing thickness from bottom to top, and the guide boss 13 is also a regular square frustum with a gradually increasing thickness from bottom to top so that the upper mold and the lower mold are gradually aligned during the mold closing process.

As shown in fig. 1 to 2, preferably, the heights of the first positioning column 25 and the second positioning column 26 are smaller than the depth of the guide groove 23.

As shown in fig. 1 to 3, preferably, the upper die 1, the lower die 2 and the guide boss 13 are all made of wood, the blade 11, the first positioning column 25 and the second positioning column 26 are all made of metal, the blade 11 is fixed in the upper die 1 by being embedded, the first positioning column 25 and the second positioning column 26 are fixed in the lower die 2 by being embedded, and the diameters of the first positioning column 25 and the second positioning column 26 are less than or equal to 2 mm.

As described above, the present disclosure is directed to a cutting die for trimming a copper foil of a circuit board, and all technical solutions identical or similar to the present disclosure should be considered as falling within the scope of the present disclosure.

Claims

1. A circuit board copper foil trimming cutting die is characterized by comprising an upper die (1) and a lower die (2) which are vertically distributed, wherein a first waste trough (21) extending forwards and backwards is concavely arranged on the left side of the upper end of the lower die (2), a second waste trough (22) extending leftwards and rightwards is concavely arranged on the front side of the upper end of the lower die, guide grooves (23) are concavely arranged at four corners of the upper end of the lower die respectively, a material taking trough (24) extending from the left front side to the right upper side is concavely arranged in the upper end area of the lower die (2) on the right side of the first waste trough (21) and the rear side of the second waste trough (22), the front end of the first waste trough (21) is communicated with the left end of the second waste trough (22), a first positioning column (25) is arranged on the right side of the first waste trough (21), a second positioning column (26) is arranged on the rear side of the second waste trough (22), the upper die (1) is provided with an L-shaped cutting edge (11) corresponding to the positions of the first waste trough (21) and the second waste trough (22), the lower end of the upper die (1) is concavely provided with a plurality of clearance grooves (12) corresponding to the positions of the first positioning column (25) and the second positioning column (26), and four corners of the lower end are respectively convexly provided with guide bosses (13) corresponding to the shape and the position of the guide groove (23).

2. The cutting die for trimming copper foil of circuit board as claimed in claim 1, wherein said first positioning posts (25) have a plurality of front and rear positions and said second positioning posts (26) have a plurality of left and right positions so as to be adapted to circuit boards of different sizes.

3. The cutting die for trimming copper foil of circuit board as claimed in claim 1, wherein the guiding groove (23) has an inner contour shape of a regular quadrangular frustum pyramid which becomes gradually thicker from bottom to top, and the guiding boss (13) has a shape of a regular quadrangular frustum pyramid which becomes gradually thicker from bottom to top so as to facilitate the gradual alignment of the upper and lower dies during the die assembly process.

4. The trimming cutting die for copper foil of circuit board according to claim 1, wherein the height of the first positioning column (25) and the height of the second positioning column (26) are both smaller than the depth of the guiding groove (23).

5. The circuit board copper foil trimming cutting die according to any one of claims 1 to 4, wherein the upper die (1), the lower die (2) and the guide boss (13) are all made of wood, the cutting edge (11), the first positioning column (25) and the second positioning column (26) are all made of metal, the cutting edge (11) is fixed in the upper die (1) through embedding, the first positioning column (25) and the second positioning column (26) are fixed in the lower die (2) through embedding, and the diameter of the first positioning column (25) and the diameter of the second positioning column (26) are less than or equal to 2 mm.