JPS5836421Y2 - floating press mold - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of press dies, and is particularly applicable to presses that are part of the material and has a different height in the pressing direction from other parts, such as semi-finished key blank materials. This invention relates to a floating press mold suitable for processing.

Conventionally, when the thickness of the processed part of the material is thicker than other parts, for example, when pressing the head of a key, a groove is provided in the lower mold that corresponds to the key shank, and the The groove was sloped downward from the head so that the key shank part could escape from the pressing surface, but this had the disadvantage that the position of the material could shift during pressing, resulting in poor processing accuracy.

Furthermore, when a thick part in the pressing direction is pressed to make it thinner, this part spreads laterally, so it is necessary to allow the part supporting the material to move laterally during pressing.

In particular, when forming the head B of a semi-finished key blank material A into a plate shape using a plane as shown in FIG. 6, the key shank portion C is Since it moves outward with the key shank C as the center, if the head B is pressed while the key shank portion C is supported, it is necessary to support the key shank C so that it can slide in the axial direction.

The present invention was developed in view of the above circumstances, and an object of the present invention is to provide a floating press mold suitable for pressing semi-finished key blank materials.

The floating press die according to the present invention is supported so as to be movable parallel to the movement direction of the punch at a height position between the punch and the die and on the side of the movement range of the punch, and is attached by a spring in the direction of the punch. A biased floating guide and a material provided on the floating guide to allow the material to slide in a direction perpendicular to the direction of movement of the punch and to position and support the processed portion of the material between the punch and the die. An insertion hole, and a material stopper that is provided movably in the axial direction of the material insertion hole and is biased by a spring to abut the tip of the material protruding through the material insertion hole and push it in the opposite direction. With this, even if the part to be processed of the material is thick in the pressing direction, it can be supported and pressed, and
This allows movement of the material due to the lateral spread of the processed portion during pressing.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the floating press according to the present invention, FIG. 2 is a right side view of the same, and FIG. 3 is a section taken along line III-I in FIG.
FIG. 2 is a cross-sectional view taken along line II.

As shown in the figure, the punch 2 placed above the die 1 of the press type has four screws that penetrate the die 1 from below in the vertical direction and whose upper ends are screwed onto the lower surface of the punch 2. −
It is supported at a position a certain distance above the die 1 in a biased state so as to be able to move downward by a bolt 3 and four compression coil springs 4 installed around these between the die 1 and the punch 2. .

Further, the horizontal positions of the die 1 and the punch 2 are regulated by a pair of guide posts 7 that are slidably fitted into a pair of guide holes 5 and 6 that vertically penetrate the die 1 and the punch 2. A press surface 9 of the punch 2 is guided vertically toward and away from a press surface 8 formed on the upper surface.

The guide post 7 has a block-shaped floating guide 1 located between the die 1 and the punch 2 and on the left side of the movement locus of the press surface 9 in FIGS. 1 and 3.
0 or is fixedly supported by a hook pin 11.

This floating guide 10 is formed from above on the same axis as the guide hole 5 of the die 1.
The die 1 is urged upward by a compression coil spring 13 mounted between the die 1 and the lower surface of the die 1, and the tip thereof is screwed into the floating guide 10 by passing through the die 1 from below as shown in FIG. The floating guide stopper 14 supports the die 1 so that it can move downward at a certain distance from the upper surface of the die 1, so that the guide post 7 is also supported together with the floating guide river 0.

Further, in the floating guide recess 0, a material insertion hole 15 is formed which passes through the floating guide recess 0 in the horizontal direction as shown in FIGS. 1 and 3.

The material insertion hole 15 has a cross-sectional shape into which a key shank portion C of a semi-finished key blank material A shown in FIG. 6 is inserted.

At the left end of the floating guide 10 in FIGS.
A stopper guide rod 16 is screwed together in the horizontal direction, and a stopper 18 is provided which is supported by the stopper guide rod 16 so as to be slidable in the axial direction and which is pressed against the left end surface by a compression coil spring 17.

The opposing surfaces of the die 1 and punch 2 are provided with recesses to prevent the floating guide 10, stopper guide rod 16 and stopper 18 from interfering with the die 1 and punch 2 when the press surfaces 8 and 9 come into contact with each other. 19 and 20 are formed.

The material insertion hole 15 in the floating guide 10 may be formed in a single block member if possible, but this is because the material insertion hole 15 is formed when the floating guide 10 is assembled as shown in FIG. The two members 10A and I
Preferably, it is formed from OB.

Reference numeral 21 in the figure indicates a screw that connects the two members.

In the figure, reference numeral 22 indicates a base with the die 1 and groove engagement therein, and the base 22 has a through hole 2 that allows the stopper bolt 3 and the guide post 7 to move in the axial direction.
3 and 24 are formed.

Further, reference numeral 25 indicates a hexagon socket set screw for fixing the die 1 to the base 22, and reference numeral 26 indicates a hexagon socket bolt for position fixing.

Next, the operation of the apparatus of the above embodiment will be explained.

First, as shown in FIGS. 1 to 3, the key blank material semi-finished product A is placed on the floating guide 1 with its key shank portion C.
By inserting the material into the material insertion hole 15 of No. 0, the head B is positioned between the press surfaces 8 and 9.

At this time, the tip of the key shank part C is at the stopper 1.
8, and the relationship between the length of the floating guide 10 and the length of the key shank portion C is that of the floating guide 1.
The length of the key shank portion C protruding from 0 is set in advance to be a predetermined value l as an initial clearance.

Therefore, the semi-finished key blank material A is held horizontally with the head B floating a certain distance from the press surface 8 and also separated from the floating guide 10 by a distance l.

When the punch 2 is lowered in this state, the press surface 9 of the punch 2 first hits the head B and attempts to push it downward.

Therefore, the floating guide 10 is also a key blank material semi-finished product A.
It is pushed down along the guide post 7 integrally with the spring 13.

Even if the floating guide 10 is pushed downward, it does not collide with the die 1 because it enters the four parts 19, and the head B of the semi-finished key blank material A is pressed between the two pressing surfaces 8 and 9, and the plate is pressed. It will be pressed into a shape.

At this time, if the press surface 8 is previously provided with unevenness to form a female mark mold 27, predetermined marks can be simultaneously formed on the head during pressing.

When the head B is formed into a plate shape by pressing, the material extends laterally along the press surface, so the key shank portion C
also tries to move in the axial direction centering on head B.

The tip of this key shank portion C is in contact with a stopper 18 that is biased by a spring 17, so when the head B is molded, it protrudes from the material insertion hole 15 against this spring 17, as shown in FIG. As shown, the force due to the deformation of the head B is released.

When the head B is formed into a plate shape, a key blank material is completed, and this key blank material becomes a completed key E by trimming and shaping the key ridge.

(Refer to Figure 6) Although the above embodiment described the case of pressing key blank materials, this floating press type is not only applicable to the processing of key blank materials; It is applied in cases where the processed part is thicker in the pressing direction than other parts.

As mentioned above, this device is supported movably parallel to the direction of movement of the punch at a height position between the punch and the die, on the side of the range of movement of the punch, and is biased in the direction of the punch by a spring. a floating guide, and a material insertion hole provided in the floating guide to allow the material to slide in a direction perpendicular to the punch direction, and to position and support the processed portion of the material between the punch and the die. and a material spring I/bar that is movable in the axial direction of the material insertion hole and is biased by a spring so as to abut the tip of the material protruding through the material insertion hole and push it in the opposite direction. By forming a floating press mold, materials that cannot normally be held horizontally can be pressed while being held horizontally, and the manufacturing process for keys, etc. can be automated and does not require human labor. It has the excellent effect of being able to

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an embodiment of the floating press mold according to the present invention, Figure 2 is a right side view of the same, and Figure 3 is I■■-I of Figure 1.
4 is a sectional view showing the operating state of the same embodiment, FIG. 5 is a right side view showing the same operating state, and FIG. 6 is a floating press mold according to the present invention. FIG. 3 is a perspective view showing a material processing step when applied to processing a key blank material. 1...Die, 2...Punch, 4...
...Compression coil spring, 10...Floating guide,
13... Compression coil spring, 15... Material insertion hole, 17... Compression coil spring, 18...
... Stopper, A ... Key blank material semi-finished product, B ... Head, C ... Key shank part, D ... Key blank material .

Claims (1)

[Scope of utility model registration request] A floating guide supported movably parallel to the direction of movement of the punch at a height between the punch and the die and on the side of the range of movement of the punch, and biased in the direction of the punch by a spring; A material insertion hole provided in the floating guide to allow the material to slide in a direction perpendicular to the direction of movement of the punch and to position and support the unprocessed portion of the material between the punch and the die, and this material insertion hole. a material stopper that is movable in the axial direction of the material and is biased by a spring to abut the tip of the material protruding through the material insertion hole and push it in the opposite direction. .