JPH0637914Y2 - Board punching type cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a substrate punching type cleaning device.

(B) Conventional Technology A board punching device for punching a printed wiring board (referred to as a “board” in this specification) is provided with a cleaning device for cleaning a die. A conventional cleaning device includes a rotatable brush and an electric motor that rotationally drives the brush. Each time cleaning is required, the electric motor is activated to rotate the brush and reverse the direction of rotation. Thus, the small pieces punched out from the substrate are removed and cleaning is performed.

(C) Problems to be Solved by the Invention However, in the conventional substrate punching type cleaning device as described above, the electric motor is repeatedly turned on and off, and the rotation direction is reversed. ,
Further, there is a problem that the life tends to be shortened, and on the other hand, when an electric motor having sufficient durability against such a motion condition is selected, the price becomes high. The present invention aims to solve such problems.

(D) Means for Solving the Problems The present invention solves the above problems by converting the reciprocating motion of the fluid pressure cylinder into a rotary motion by the rack and the pinion, and thereby driving the brush to rotate. That is, the substrate punching type cleaning device according to the present invention includes a moving member (38) provided on a side portion of the press slide (10) so as to be movable in a direction parallel to the lower surface of the stripper plate (26).
A fluid pressure cylinder (37) capable of driving the moving member, a rack (42) fixed in a direction parallel to the moving direction of the moving member, and a pinion rotatably supported by the moving member and engaged with the rack. (40), a brush (52) rotatably supported by the moving member, and a rotation transmission mechanism (44, 46, 48) for transmitting the rotation of the pinion to the brush, the brush being the lower surface of the stripper plate. It is arranged at a position where it moves along the lower surface of the stripper plate in accordance with the movement of the moving member while being in contact with. The reference numerals in parentheses indicate the corresponding members in the embodiments described later. The cleaning device may be integrated with a transfer device that takes out the substrate. That is, the fluid pressure cylinder can be shared with the one for transferring the substrate.

(E) Action When the fluid pressure cylinder is operated to move the moving member,
The pinion supported by this engages with the rack and rotates. The rotation of the pinion is transmitted to the brush by the rotation transmission mechanism. Therefore, the brush moves along with the moving member along the lower surface of the stripper plate and simultaneously rotates to clean the lower surface of the stripper plate.

(F) Example FIG. 3 shows the structure of a substrate punching die. Press slide
A knockout device 12 is attached to the lower surface of 10.
The knockout device 12 has a knockout piston 14, and this knockout piston 14 is operated by the hydraulic pressure of an oil chamber 18 to which the hydraulic pressure is supplied from a pipe connection port 16. On the lower surface of the knockout device 12, a mold seat 22 is provided by a clamp 20.
Is attached. This die seat 22 has punching pins
24 is fixed. The punching pin 24 penetrates through a hole provided at a corresponding position of the stripper plate 26 arranged at the lower part of the mold seat 22. The stripper plate 26 is supported by a guide rod 28 so as to be vertically movable with respect to the mold seat 22. The stripper plate 26 is connected to the knockout piston 14 by a piston rod 30.

A cleaning device as shown in FIGS. 1 and 2 is provided on the side of the press slide 10 provided with the punching die having the above-described structure. That is, a rectangular mounting plate 32 is provided on a side portion of the press slide 10, and guide shafts 36 supported at both ends by brackets 34 fixed to both ends of the mounting plate 32 are in the horizontal direction, that is, the stripper plate 26. Are arranged in parallel with the lower surface of the. A moving member 38 is movably guided by the guide shaft 36. The moving member 38 is a fluid pressure cylinder provided on the upper side of the mounting plate 32.
It is connected to 37 (rodless cylinder). Moving member
A pinion 40 is rotatably supported on 38. The pinion 40 meshes with a rack 42 fixed to the lower side of the mounting plate 32. A pulley 44 is provided so as to rotate integrally with the pinion 40, and this pulley 44 is connected to another pulley 46 via a belt 48. The pulley 46 is a brush shaft
It is connected to the brush 52 via 50. The brush 52 is rotatably supported by a mounting arm 54 connected to the moving member 38. The brush 52 is arranged at a position in contact with the lower surface of the stripper plate 26 described above. A saucer 56 is also attached to the mounting arm 54.

Next, the operation of this embodiment will be described. FIG. 3 shows a state where the punching of the substrate 60 is completed. The substrate 60 punched by the punching pin 24 is lifted while being attached to the punching pin 24. From this state, the oil chamber 18
Knockout piston 14 by applying hydraulic pressure to
Pressing down lowers the stripper plate 26,
Is projected. At this point, the tray 56 that moves together with the moving member 38 is located below the stripper plate 26. Therefore, the projected substrate 60 is received by the receiving tray 56. Then, the fluid pressure cylinder 37 is activated to start moving the moving member 38 from the left side position to the right side position shown in FIG. A pinion 40 that engages with the rack 42 when the moving member 38 moves from the left side to the right side in FIG.
Rotates in the clockwise direction in FIG. 1, and this rotation is transmitted to the pulley 46 via the belt 48, so that the brush 52 connected to the pulley 46 also rotates in the same direction. Therefore, the brush 52 moves from the left side to the right side along the lower surface of the stripper plate 26 while rotating clockwise in FIG. As a result, the punched small pieces and the like attached to the lower surface of the stripper plate 26 are removed. The moving member 38 finally moves to the position shown in FIG. At this position, the substrate 60 received by the tray 56 is taken out. Then, the fluid pressure cylinder 37 operates in the opposite direction to the above case, and the moving member
38 is moved leftward from the position shown in FIG. During this movement, the pinion 40 rotates in the opposite direction to the above case. As a result, the brush 52 also rotates in the opposite direction to the above case. That is, the brush 52 moves from the right side to the left side along the lower surface of the stripper plate 26 while rotating counterclockwise in FIG. As a result, the lower surface of the stripper plate 26 is cleaned twice in one cycle. Moreover, the rotation direction of the brush 52 is opposite between the first cleaning and the second cleaning, so that dust and the like are completely removed. Saucer
When 56 returns to the initial position below the stripper plate 26, the same cycle is repeated. Incidentally, this.
Although the pulley and the belt are used as the rotation transmission mechanism in the embodiment, a gear mechanism, a chain mechanism or the like may be used.

(G) Effect of the Invention As described above, according to the present invention, the reciprocating motion of the moving member obtained by the fluid pressure cylinder is converted into the rotary motion by the rack and the pinion, and thereby the brush is rotationally driven. Therefore, the mold can be cleaned without using the electric motor and the electric components accompanying the electric motor. Since no electric motor is used in this manner, problems such as durability and maintenance of the electric motor do not occur, and moving wiring is unnecessary. Further, the mechanism of the cleaning device is simplified, the number of failures is reduced, and the manufacturing cost is reduced. Further, when the cleaning device is configured integrally with the substrate transfer device as in the embodiment, only a rack, a pinion, a rotation transmission mechanism, a brush, etc. need to be added to the transfer device, which is very economical.

[Brief description of drawings]

FIG. 1 is a view showing a substrate punching type cleaning device of the present invention,
2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a view showing a substrate punching device. 10 …… Press slide, 24 …… Punching pin, 26 …… Stripper plate, 32 …… Mounting plate, 37 …… Fluid pressure cylinder, 38 …… Moving member, 40 …… Pinion, 42 …… Rack,
44 …… Pulley, 46 …… Pulley, 48 …… Belt, 52 …… Brush.

Claims (2)

[Scope of utility model registration request] 1. A cleaning device for a substrate punching die, wherein a substrate is pressed onto a lower die by a stripper plate provided on the lower surface of the press slide and punched by a punching pin, wherein a lower surface of the stripper plate is provided on a side portion of the press slide. A movable member that is movable in the parallel direction, a fluid pressure cylinder that can drive the movable member, a rack that is fixed in a direction parallel to the moving direction of the movable member, and a rotatably supported member. It has a pinion that meshes with the rack, a brush that is rotatably supported by the moving member, and a rotation transmission mechanism that transmits the rotation of the pinion to the brush.The brush moves the moving member while being in contact with the lower surface of the stripper plate. The punching of the substrate, which is arranged at a position to move along the lower surface of the stripper plate according to Mold cleaning device. 2. Cleaning of a substrate punching die according to claim 1, wherein a tray for receiving a substrate adhering to the stripper plate when the punching is finished and the substrate is ejected is attached to the moving member. apparatus.