JP4910912B2 - Circuit board outer die - Google Patents

Description

  The present invention relates to a circuit board outer shape punching die.

  In recent years, the density of electronic devices has been increased, as represented by mobile phones and personal computers, and as a result, the required quality of circuit boards used has been varied.

  A general manufacturing method of a circuit board uses a metal-clad laminate in which a metal layer is formed on at least one surface of a base material, forms a wiring circuit on the metal layer, performs electrical inspection, and performs outline punching. The circuit board is completed. Depending on the product specifications, steps such as forming a plurality of different coating layers, forming an electromagnetic wave shielding layer, and attaching a reinforcing plate are appropriately added.

  During manufacturing, a plurality of products are placed on a single metal-clad laminate or a roll-like metal-clad laminate, cut to an optimal size in the middle of the process, and finally in the outer shape machining process. It becomes a piece of the product. When performing component mounting or the like, a product may not be completely separated into individual pieces, but may be formed in a state in which a plurality of products are connected and processed into individual pieces after component mounting.

  In such a manufacturing process, the circuit board punching mold is not only a mold for processing the outer shape, a mold for partially drilling holes in the circuit board, but also a coating layer or double-sided tape. A punching die having various shapes and specifications such as a die for processing a film-like workpiece into a desired shape such as a reinforcing plate and an electromagnetic wave shielding layer is used (for example, Patent Document 1).

  An example of a conventional punching die will be described with reference to FIG. The punching die 12 has a first die 100 and a second die 200. The first die 100 is attached to the die plate 130, which is called a male die, the punch plate 120 that fixes the upper end of the die plate 130, the punch holder 110 that fixes the punch plate 120, and the die plate 130. The holding plate 150 is in a separated state due to the elastic force of the 120 and the elastic body 140. The pressing plate 150 increases the punching efficiency by pressing the circuit board 300 in advance when the circuit board 300 to be punched is punched, and suppresses the movement of the circuit board in the front-rear and left-right directions. The second mold 200 includes a die punch 240 that is said to be a female mold. The stripper plate 250 is in a separated state around the die punch 240 by the elastic biasing of the die holder 260 and the elastic body 230. The stripper plate 250 has a male and female relationship with the pressing plate 150 provided in the first mold 100 and has the same function. In addition to the above components, the punching die 12 includes a guide pin for positioning the first die 100 and the second die 200, a guide bush, and a location pin 242 for positioning the circuit board 300 on the die punch 240. There is.

In order to punch out the circuit board 300 using such a punching die 12, first, the long circuit board 300 is fed onto the die punch 240, as shown in FIGS. 6 (a) and 6 (b). After the circuit board 300 is installed at a predetermined position on the die punch 240, a press pressure is applied to the punch holder 110 in the downward direction in the figure. As a result, the die plate 130 and the pressing plate 150 that are integrated with the punch holder 110 are lowered, and the pressing plate 150 presses the circuit board 300 in advance against the elastic bias of the elastic body 140. The die plate 130 reaches the circuit board 300, and strong shear occurs at the edges of the die plate 130 and the die punch 240, and the outer shape of the circuit board 300 is cut into pieces 310. At this time, as shown in FIG. 6C, the punched piece 310 falls so as to ride on the peripheral circuit board. Therefore, every time the punching process is performed, it is necessary to remove the piece 310 that has been placed on the peripheral circuit board 300, and the working efficiency is lowered. In addition, when removed manually, the punched piece 310 may be broken or wrinkled.
Japanese Patent Laid-Open No. 09-064512

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a circuit board outer shape punching die without deteriorating work efficiency and without impairing the product yield.

Such an object is achieved by the present invention described in the following (1) to (3).
(1) A circuit board outer shape punching die comprising a first die provided with a pressing plate and a die plate, a second die provided with a die punch and a stripper plate, and the stripper A circuit board outer shape punching die having a take-out plate fixed on one side of the stripper plate and operating on the side as an axis on the plate.
(2) The circuit board outer shape punching die according to (1), wherein a hole larger than the outer shape of the die punch is provided in the takeout plate.
(3) The circuit board outer shape punching die according to (2), wherein the hole is substantially similar to the outer shape punched by the outer shape punching die.

  According to the present invention, it is possible to provide a circuit board outer shape punching die without deteriorating work efficiency and without impairing the product yield.

  Hereinafter, a preferred embodiment of a circuit board outer shape punching die of the present invention will be described with reference to the drawings. In all the drawings, common constituent elements are denoted by the same reference numerals, and detailed description will be appropriately omitted in the following description.

  The circuit board outer shape punching die 12 includes a first die 100 provided with a pressing plate 150, a die plate 130, a die punch 240, and a second die 200 provided with a stripper plate 250. FIG. 1 is a schematic plan view of a second mold 200 showing an embodiment of a circuit board outer shape punching die according to the present invention. FIG. 2 is a schematic plan view of the take-out plate 500 provided on the stripper plate 250. FIG. 3 shows a state fixed to one side 510 on the stripper plate 250, and FIG. 5 is a schematic side view showing a state in which the stripper plate 250 is operated with the one side 510 as an axis. FIG. 4 is a schematic plan view showing a state in which the circuit board 300 is placed on the takeout plate 250.

  As shown in FIG. 1, the die punch 240 is processed into this shape at a portion called a female die. Location pins 242 for positioning the circuit board 300 are provided. The number of location pins 242 installed is not particularly limited, but at least two location pins 242 are required. In order to prevent incorrect positioning of the circuit board 300, it is more preferable to provide three or more locations.

  Next, as shown in FIG. 2, the takeout plate 500 is provided with holes 243 and 244 so as to avoid the die punch 240 and the location pin 242. The sizes of the holes 243 and 244 are not particularly limited, but it is preferable to process the holes 243 and 244 so as not to contact the location pins 242 when opening and closing with the side 510 as an axis. The hole 243 is preferably larger than the size of the individual piece 310 by 2 mm or more and 5 mm or less on one side. Within this range, the stamped piece 310 can be reliably taken out onto the takeout plate 500. The material of the take-out plate 500 is not particularly limited. For example, a metal plate such as iron, aluminum, stainless steel, or copper can be used as the metal. Moreover, what impregnated the base material with thermosetting resins, such as an epoxy resin laminated board, a composite laminated board, and a phenol resin laminated board, the thick sheet | seat of a thermoplastic resin, etc. can be used. About thickness to use, what is necessary is just to select what is generally available suitably, but the range of 0.5-2 mm is more preferable. A drill, a router, etc. can be used for the process of the holes 243 and 244. In addition, when the circuit board outer shape punching die 12 is attached to the punching press machine, the protruding plate 501 is provided at both ends of the extraction plate 500 on the working side, so that the extraction plate 500 can be gripped. Therefore, the work efficiency is further improved.

  FIG. 3 shows a state of being fixed to one side 510 on the stripper plate 250. The holding plate 150 and the location pin 242 are exposed without being obstructed by the holes 243 and 244 provided in the extraction plate 500, respectively. is doing. And it is fixed to the second mold 200 on one side 510. As a fixing method, it is preferable that the punching operation can be easily performed after the punching operation is completed, and it is preferable that the fixing is performed using a cellophane tape or a gummed tape. FIG. 4 shows the circuit board 300 placed on the surface of the take-out plate 500. Thereafter, punching is performed based on the above-described process of FIG. The punched pieces 310 are dropped on the upper surface of the circuit board 300, and the individual pieces 310 are removed from the circuit board 300 in a sliding manner by gripping and lifting the protruding portion 501. This improves work efficiency and eliminates the need to remove the pieces 310 by hand, leading to prevention of breakage and wrinkles.

  The material of the elastic bodies 140 and 230 is not particularly limited, but may be a cushion material that can withstand tens of thousands of compressions, and generally used urethane rubber is suitable.

It is a schematic plan view of the 2nd type | mold 200 which shows one Example of the circuit board external shape punching die by this invention. 5 is a schematic plan view of a takeout plate 500. FIG. FIG. 6 is a schematic plan view showing a state fixed to one side 510 on the stripper plate 250. FIG. 6 is a schematic plan view showing a state where the circuit board 300 is placed on the takeout plate 250. It is a schematic side view which shows the state which operated the taking-out plate 500 by using the one side 510 as an axis | shaft. It is a schematic process drawing which shows an example of the conventional punching die.

Explanation of symbols

12 Circuit board punching die 100 First die 110 Punch holder 120 Punch plate 130 Die plate 140 Cushion material 150 Holding plate 200 Second die 210 Post 220 Cushion material 230 Cushion material 240 Die punch 242 Location pin 243 Hole 244 Hole 250 Stripper plate 260 Die holder 300 Circuit board 310 Piece 500 Extraction plate 501 Overhang

Claims (3)

A first mold provided with a holding plate and a die plate;
A circuit board outer shape punching die comprising a die punch and a second die provided with a stripper plate,
A circuit board outer shape punching die having a stripping plate fixed on one side of the stripper plate and operating on the side as an axis, on the stripper plate. The circuit board outer shape punching die according to claim 1, wherein a hole larger than the outer shape of the die punch is provided in the extraction plate.   The circuit board outer shape punching die according to claim 2, wherein the hole has a shape substantially similar to an outer shape punched by the outer shape punching die.