JP2001121226A - Guide apparatus of press die - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a ball retainer disposed between a sliding guide post and a guide bushing from positionally deviating or breaking and to prevent a stopper of the ball retainer arranged in the guide post from breaking. SOLUTION: There is a ball retainer 5 between a guide post 3 of a die holder 1 and a guide post 4 of a punch holder 2. There is a first spring 6 under the retainer 5. A stopper 13 is arranged elevatably in a prescribed range in a through hole 13 of a mounting member 12 arranged in a recessed part 10 of the upper end of the post 3. A second spring 20 is arranged in the recessed part 10 at a shaft part 15 of the stopper. The second spring supports the retainer through the stopper in the direction opposite to the first spring. By balancing the first spring 6 force pushing up the retainer 5 and the second spring 20 force pulling down, a positional deviation of the retainer 5 is prevented. By this method, the retainer 5 is not come off from the post 3 and the bushing 4, further, breaking of the retainer 5 and stopper 14 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for guiding relative movement (opening / closing) of a pair of dies by a guide post and a guide bush that slide through a guide member having a bearing therein. In particular, the present invention relates to a guide device having a structure in which the guide member is supported by two springs in both directions of the movement direction.

[0002]

2. Description of the Related Art An example of the structure of a guide device for a press die will be described. As shown in FIG. 5, a not-shown die (female type) is attached to the die holder 1 serving as the first holding plate.
A punch (male) (not shown) is attached to the punch holder 2 serving as the second holding plate. The die holder 1 and the punch holder 2 have a guide post 3 and a guide bush 4 respectively.
The guide post 3 is inserted into the guide bush 4. Generally, the punch holder 2 is the shank 2
attached to the movable side of the press machine via a
The die holder 1 is on the fixed side. During the press operation, the punch holder 2 moves with respect to the die holder 1, and the guide post 3 and the guide bush 4 guide this movement.

As another guide method, a ball retainer 5 as a guide member is interposed between the guide post 3 and the guide bush 4 as shown in FIG. The ball retainer 5 is a slidable guide member in which a large number of balls are rotatably mounted on a peripheral surface of a cylindrical body whose top and bottom are open. The ball retainer 5 is mounted in a press-fit state between the guide post 3 and the guide bush 4. When the guide bush 4 moves up and down with respect to the guide post 3, the ball rotates and the ball retainer 5 moves up and down together. It works. As a guide member having the same function, a roller guide in which a number of rollers are rotatably mounted on a peripheral surface of a similar cylindrical body is also known. When the ball retainer 5 is used, the guide post 3 and the guide bush 4 are kept in an optimum state at the lower limit of the stroke of the upper and lower dies.
Must be set between. Also,
Since the punch holder 2 is mounted on the press machine, it is necessary to prevent the ball retainer 5 from projecting from the upper surface of the punch holder 2 when the press machine is located at the bottom dead center.

[0004] In the state shown in FIG.
Is not immediately lowered by its own weight, but it is difficult to mount the ball retainer 5 at an optimum position. While the pressing operation is repeated, the position of the ball retainer 5 may deviate from the optimal position. In such a case, it is necessary to correct the position of the ball retainer 5 at an appropriate time.

Therefore, as shown in FIG. 7, a first spring 6 is provided on the outside of the guide post 3 below the ball retainer 5 in the figure (on the side of the die holder 1).
There is known a structural example in which the guide post 3 is supported toward the distal end side (upper side in the figure) of the guide post 3. With such a structure, since the ball retainer 5 does not fall, when the punch holder 2 is mounted on the die holder 1, the positioning of the ball retainer 5 with respect to the guide post 3 becomes easy. Further, as shown in the figure, in addition to the first spring 6, a stopper 7 movable in a predetermined range along the moving direction of the mold may be provided at the upper end of the guide post 3 in some cases.

[0006]

According to the structure using the first spring 6 and the structure in which the stopper 7 is provided on the guide post 3 in the mold guiding device having the ball retainer 5, the following is achieved. There was a problem.

First, as shown in FIG. 8, in a mold guide device having a ball retainer 5, according to the structure using the first spring 6, the ball retainer 5 is composed of the guide post 3 and the guide bush 4 Because it is pressed in between,
The ball rotates in accordance with the vertical movement of the guide bush 4, and the ball guide also moves up and down during the pressing. Further, when the ball retainer 5 moves toward the base (the lower side in the figure) of the guide post 3 during the press working, the ball retainer 5 is pushed up in the opposite direction by the elastic force of the first spring 6 and moves in the guide bush 4 direction ( It receives a force that pushes it upward (upper side in the figure). Therefore, the ball of the ball retainer 5 slips and the guide bush 4
It gradually shifts in the direction (upper side), and the center line in FIG. 8 is shown in the left half. Therefore, as shown by the dimension line in the figure, one end of the spring was cut to shorten the length, and this was repeated until the deviation was converged.

Further, as shown in FIG. 9, according to the structure using the first spring 6 and the movable stopper 7 in the guide device of the mold having the ball retainer 5, the ball retainer 5 can be pressed during the press working. The ball is moved toward the guide post 3 side, and is pushed up in the opposite direction by the elastic force of the first spring 6 to cause the ball to slip, and the ball slightly shifts in the guide bush 4 direction. The shift is corrected by hitting 7. However, when the deviation exceeds a certain level, the ball retainer 5 repeatedly collides with the stopper 7, and the stopper 7 may be damaged.

The present invention relates to a mold guide device having a guide member such as a ball retainer between a sliding guide post and a guide bush, and further having a spring for supporting the guide member and a stopper for the guide member. It is another object of the present invention to prevent the guide member from being displaced and prevent the guide member and the stopper from being damaged.

[0010]

The guide device for a press die according to the present invention is provided on a first holding plate (die holder 1) to which the first die is attached as shown in FIG. A guide post (3), a guide bush (4) provided on a second holding plate (punch holder 2) to which a second mold is attached and into which the guide post is inserted, the guide post and the guide A guide member (ball retainer 5) movably provided between the bushes, and a first spring (6) provided outside the guide post and supporting the guide member toward the distal end of the guide post. The first holding plate and the second holding plate relatively move along the guide direction of the guide post and the guide bush, and thereby the first holding plate and the second holding plate move.
In the press die guide device provided in the press die in which the second die and the second die function, the stopper (14) provided at the upper end of the guide post and movable within a predetermined range along the moving direction. ), And a second spring (20) provided on the stopper and supporting the guide member through the stopper in a direction opposite to the first spring.

In the guide device for a press die according to the second aspect, the first die to which the first die is attached as shown in FIG.
And a guide bush (3) provided on the holding plate (die holder 1) and a guide bush (2) provided on the second holding plate (punch holder) to which the second mold is attached and into which the guide post is inserted. 4) a guide member (ball retainer 5) movably provided between the guide post and the guide bush; and a guide member provided outside the guide post and in contact with a base end side of the guide member. Spring (6) for supporting the guide post toward the distal end side of the guide post
A press in which the first die and the second die function by the relative movement of the first holding plate and the second holding plate along the guide direction of the guide post and the guide bush. A guide device for a press die provided in a die, a concave portion (10) provided at an upper end of the guide post, and a mounting member (12) having a through hole (13) and detachably provided in the concave portion. A shaft part (15) slidably inserted through a through hole of the mounting member; and a stopper member (not shown) attached to a tip of the shaft part outside the recess and locked to a tip side of the first spring. A stopper (14) having a stopper (14) having a stopper member (17) attached to a base end of the shaft portion inside the recess to prevent the shaft portion from falling out of the through hole; The mounting member inside Said retainer is provided on the outside of the shaft portion between the members, the second spring and the said guide member through said stopper first spring supporting the opposite direction (2
0).

In the guide device for a press die according to the third aspect, the first die to which the first die is attached as shown in FIG.
A guide post (3) provided on a holding plate (die holder 1) of the above, and a guide bush provided on a second holding plate (punch holder 2) on which a second mold is mounted and into which the guide post is inserted. (4) a guide member (ball retainer 5) movably provided between the guide post and the guide bush, and a guide member provided outside the guide post and in contact with a base end side of the guide member to perform the previous guide. A first spring (6) for supporting the member toward the distal end of the guide post, wherein the first holding plate and the second holding plate are relatively moved along the guide direction of the guide post and the guide bush; In a press die guide device provided on a press die in which the first die and the second die function by moving, a retaining member (27) provided on a flat upper end of the guide post. , Said guy A base portion (31) provided on the upper end of the post and outside the retaining member, and a locking portion (32) for locking to a distal end side of the guide member; A stopper (30) movable along a stopper member, and a stopper provided between the stopper member and the stopper, wherein the guide member is connected to the first spring via the locking portion of the stopper. A second spring (20) for supporting in the opposite direction.

The guide device for a press die according to a fourth aspect of the present invention has a first die to which a first die is attached as shown in FIG.
A guide post (3) provided on a holding plate (die holder 1) of the above, and a guide bush provided on a second holding plate (punch holder 2) on which a second mold is mounted and into which the guide post is inserted. (4) a guide member (ball retainer 5) movably provided between the guide post and the guide bush, and the guide provided outside the guide post and in contact with a base end side of the guide member. A first spring (6) for supporting the member toward the distal end of the guide post, wherein the first holding plate and the second holding plate are relatively moved along the guide direction of the guide post and the guide bush; In a press die guide device provided in a press die in which a first die and a second die function by moving, a concave portion (40) provided at an upper end of the guide post.
And a retaining member (27) provided at the bottom of the recess.
And a base (31) provided outside the retaining member in the concave portion and a locking portion (32) for locking to a distal end side of the guide member, and within a predetermined range in the moving direction. A stopper (30) movable along the retaining member; and a first spring provided between the retaining member and the stopper, the guide member being provided through the engaging portion of the stopper. And a second spring (20) for supporting in the opposite direction.

According to a fifth aspect of the present invention, there is provided the guide device for a press die according to the second aspect of the present invention, wherein the through-hole (13) of the mounting member (12) is inserted through the through-hole (13). The shaft portion (15) is characterized in that it has a predetermined cross-sectional shape such that both can move relatively in the axial direction and cannot move in the rotation direction.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. 1. The configuration of a mold apparatus to which a guide apparatus of the present embodiment is applied will be described in the section of the prior art. 5 is substantially the same as that described with reference to FIG. That is, a die as a first mold is provided in a die holder 1 as a first holding plate. Also, the punch as the second mold is
Is provided on the punch holder 2 as a holding plate. The punch holder 2 is connected to a movable part of the press machine and is movable relative to the die holder 1.

Next, a description will be given of a guide device which is attached to the above-mentioned mold device and guides the opening and closing of the mold device. A guide post 3 is provided on the die holder 1. The punch holder 2 is provided with a guide bush 4 into which the guide post 3 is inserted. A ball retainer 5 as a guide member is provided between the guide post 3 and the guide bush 4.
Is movably provided. In addition, ball retainer 5
, A ball is provided rotatably with respect to the main body, and the ball is press-fitted between the guide bush 4 and the guide post 3. When the press machine operates, the punch holder 2
The guide post 3, the guide bush 4, and the ball retainer 5 move along the guide direction with respect to the die holder 1, whereby a forming operation using a punch and a die is performed.

Further, on the outer peripheral side of the guide post 3, a first spring 6 is provided between the ball retainer 5 and the die holder 1.
Is provided. The first spring 6 is in contact with the base end side (the die holder 1 side) of the ball retainer 5 and supports the ball retainer 5 toward the distal end side of the guide post 3.

A recess 10 is formed at the upper end of the guide post 3. A screw is formed in the opening 11 of the recess 10, and a mounting member 12 is screwed into the opening 11 so as to be detachably fixed. The mounting member 12 is formed with a through hole 13 penetrating vertically. The shape of the through hole 13 in this example is a hexagon.

At the tip of the guide post 3 on which the attachment member 12 is provided, a stopper 14 which is engaged with the tip of the first spring 6 is attached. The stopper 14 has a rod-shaped shaft portion 15 and a disk-shaped stopper member 16. That is, the shaft portion 15 is slidably inserted into the through hole 13 of the attachment member 12. The cross-sectional shape of the shaft portion 15 is a hexagon that matches the through hole 13. Therefore, the shaft portion 15 can move in the axial direction with respect to the through hole 13 but cannot rotate. A stopper member 16 is fixed to a tip of a shaft portion 15 protruding out of the concave portion 10. The tip (upper end) of the ball retainer 5 is locked to the lower surface of the outer peripheral edge of the stopper member 16.

A stopper member 17 is attached to the base end of the shaft portion 15 which penetrates the through hole 13 and is inside the recess 10. The retaining member 17 prevents the shaft portion 15 from coming out of the through hole 13.

Inside the recess 10, the mounting member 1
On the outer periphery of the shaft portion 15 between the retaining member 17 and the retaining member 17,
A second spring 20 is provided. A step 21 is formed in the mounting member 12 in the recess 10, and the step 21 prevents the second spring 20 from being compressed beyond its limit.
The second spring 20 supports the ball retainer 5 via the stopper 14 in a direction opposite to that of the first spring 6.

As described above, according to the present embodiment, the second spring 20 is provided between the retaining member 17 attached to the shaft portion 15 and the attaching member 12, and the second spring 20 is provided with the ball retainer 5 and the die holder. 1 generates a force opposing the force generated by the first spring 6 provided therebetween. That is, the first spring 6 generates a force to push the ball retainer 5 upward in the figure, while the second spring 20 generates a force to pull the ball retainer 5 downward in the figure. This prevents the ball retainer 5 from shifting upward or downward.

In other words, when the ball retainer 5 is displaced in the upward direction in the drawing, the second spring 20 exerts a force for pushing the ball retainer 5 on the ball retainer 5, so that the ball is held at a position where the forces of the upper and lower two springs are balanced. The retainer 5 tries to stop.

When assembling the apparatus for the first time (at the time of setting)
It is not always necessary that the force of the second spring 20 acts on the ball retainer 5. During use of the mold and the guide device, when the ball retainer 5 is displaced in the distal direction of the guide post 3, it hits the stopper member 16, and from that point the force of the second spring 20 starts to act on the ball retainer 5. You may do so. When the mold and the guide device are used in the posture shown in the figure, the stopper is lowered by its own weight.
May hit the ball retainer 5 in some cases.

In the present embodiment, the length of the shaft portion 15 protruding outside from the through hole 13 is regulated by the stopper member 17 coming into contact with the mounting member 12. Mounting member 12
The second spring 20 can be inserted into the step portion 21 formed in the above, but the retaining member 17 or the adjustment collar 22 provided thereon cannot be gripped. Therefore, even when the second spring 20 is compressed, if the depth (height) of the step portion 21 is made larger than the compression height of the second spring 20, breakage of the second spring 20 is prevented. Is done. If the adjustment collar 22 is always used, the step portion 21 may be formed on the adjustment collar 22 instead of the mounting member 12.

If the adjusting collar 22 is provided between the retaining member 17 and the second spring 20, the length of the protrusion of the shaft portion 15 from the upper end of the mounting member 12 is reduced, and the total length of the second spring 20 is also reduced. Compressed.

When the length of the shaft portion 15 protruding from the upper end of the mounting member 12 decreases, the force generated by the first spring 6 increases, and when the entire length of the second spring 20 is compressed and reduced, the second spring 20 is reduced. The generated force also increases.

Therefore, regardless of the height of the adjustment collar 22, the force generated by the first spring 6 and the second spring 20 can always maintain a constant relationship.

The length by which the shaft 15 protrudes from the upper end of the mounting member 12 must be changed according to the stroke length of the press machine used. Since the shaft portion 15 and the through hole 13 of the mounting member 12 cannot slide and rotate, the mounting member 12 can be removed from the guide post 3 without disassembling the stopper 14 by rotating the shaft portion 15. The stopper 14 can be removed from the guide post 3 together with the mounting member 12, and the adjustment collar 22 can be replaced. There is no need to disassemble the stopper 14, and the attachment and detachment of the adjustment collar 22 is easy, and the working time is short. The shape of the shaft portion 15 and the through hole 13 is not limited to a hexagon, and may be, for example, another rectangular tube shape as long as the shaft portion 15 and the through hole 13 can move in the axial direction and can restrict rotation.

According to the present embodiment, by balancing the force of the first spring 6 that pushes up the ball retainer 5 and the force of the second spring 20 that pulls down the ball retainer 5, the ball slips and the position of the ball retainer 5 shifts. Can be suppressed. By suppressing the position of the ball retainer 5 from being shifted, accidents such as the ball retainer 5 being detached from the guide post 3 and the guide bush 4 and the ball retainer 5 and the stopper being damaged are eliminated, thereby reducing adjustment maintenance work. it can.

Since the second spring 20 generates a force for pulling down the stopper member 16, the collision that occurs when the ball retainer 5 reaches the upper limit of operation is reduced, and the fatigue damage of the ball retainer 5 and the stopper 14 is prevented. can do.

By changing the height of the adjustment collar 22, the upper limit of the operation of the ball retainer 5 can be changed in accordance with the use conditions of the mold, so that the same effect can be obtained in various molds. .

Adjustable collar 22 according to use conditions of mold
Is maintained, the relationship between the force generated by the first spring 6 and the force generated by the second spring 20 is maintained, so that similar effects can be obtained in various molds.

The shaft portion 15 provided with the stopper member 16 is
Since the spring 20 generates a pulling-down force, the stopper member 16 can follow the operation of the ball retainer 5 even if the ball retainer 5 reciprocates at a speed faster than free fall.

Since the second spring 20 generates a force for pulling down the stopper member 16, the stopper member 16 follows the operation of the ball retainer 5 even in an inverted post structure in which the guide post 3 and the guide bush 4 are turned upside down. Also, the stopper member 16 is not damaged by being caught.

A second embodiment of the present invention will be described with reference to FIG. 2. The configuration of a mold apparatus to which the guide apparatus of the present embodiment is applied is the same as that of the first embodiment. The structure of the stopper provided at the upper end (tip) of the guide post 3 is different from the first example. The description will be focused on here.

The upper end (tip) of the guide post 3 of this embodiment is flat, and a retaining member 27 is detachably attached to the guide post 3 by a screw as fixing means. The retaining member 27 has a central shaft portion 28 and a locking portion 29 at the upper end (tip).

At the upper end of the guide post 3, a stopper 30 is provided outside the retaining member 27. The stopper 30 is a substantially cylindrical member whose upper side is open,
A base portion 31 that slides with respect to the shaft portion 28 for retaining, and a locking portion 3 provided around an opening at the upper end (tip) of the base portion 31
Two. The stopper 30 can move along the retaining member 27 within a predetermined range in the axial direction of the guide post 3 (the moving direction of the mold). The distal end side of the ball retainer 5 is locked to the locking portion 32 of the stopper 30.

A second spring 20 is provided between the locking portion 29 of the retaining member 27 and the base 31 of the stopper 30. The second spring 20 is provided on the outer periphery of the shaft 28 of the retaining member 27. The second spring 20 supports the ball retainer 5 in the opposite direction to the first spring 6 via the locking portion 32 of the stopper 30.

As described above, according to the present embodiment, the stopper mechanism always protruding from the tip of the guide post 3 is attached to the tip of the guide post 3 by a fixing means such as a screw. Two springs 20 are provided to generate a force opposing the force generated by the first spring 6 between the ball retainer 5 and the die holder 1. While the first spring 6 generates a force that pushes the ball retainer 5 upward, the second spring 20 generates a force that pulls the ball retainer 5 downward, so that the ball retainer 5 shifts downward. To prevent.

When the stopper 30 is at the upper limit of the movement, in order to prevent the second spring 20 from being damaged, a substantially ring-shaped adjustment collar 22 may be provided inside the base 31 of the stopper 30. In this case, the height of the adjustment collar 22 is the second spring 2
It is larger than the compression height of 0.

According to this embodiment, similarly to the first embodiment, it is possible to prevent the position of the ball retainer 5 from being shifted, and it is possible to reduce accidents such as damage to the ball retainer 5 and the stopper 30. Further, since the second spring 20 generates a force for pulling down the stopper 30, a collision that occurs when the ball retainer 5 reaches the upper limit of operation can be reduced, and the fatigue failure of the ball retainer 5 and the stopper 30 can be prevented. In addition, since the height of the adjustment collar 22 can be changed to change the upper limit of the operation of the ball retainer 5 in accordance with the use conditions of the mold, it can be applied to various molds.

A third embodiment of the present invention will be described with reference to FIG. 3. The configuration of a mold apparatus to which the guide apparatus of this embodiment is applied is the same as that of the first embodiment. Guide post 3 of this example
The stopper 30 provided at the upper end (tip) of the guide post 3 is built in the tip of the guide post 3 and differs from the first and second examples in the structure of the mounting position. This will be mainly described.

A recess 40 is formed at the upper end (tip) of the guide post 3 of this embodiment. A retaining member 27 is detachably attached to the bottom of the concave portion 40 by a screw as a fixing means. The retaining member 27 has a central shaft portion 28 and a locking portion 29 at the upper end (tip).
The retaining member 27 has a stopper 30 and a second supporting member 30 for supporting the stopper 30 in a direction opposite to the first spring 6.
A spring 20 is provided. The structure of the retaining member 27, the stopper 30, and the second spring 20 is the same as that of the above-described second example except that most of them are in the concave portion 40. The same numbers as in the example are assigned and the description is omitted.

The length of the ball retainer 5 in the sliding direction between the guide post 3 and the guide bush 4 at the bottom dead center of the pressing operation of the mold is smaller than that of the second example. Is longer. This means that the number of balls of the ball retainer 5 interposed between the guide post 3 and the guide bush 4 is larger in the third example, and therefore, in the third example than in the second example. Is more stable at bottom dead center.

In the second example, the locking portion 32 of the stopper 30 for locking the ball retainer 5 is higher than the upper end of the guide post 3 by the height of the stopper 30, as shown in FIG. As shown in FIG. 3, in the third example, since the locking portion 32 of the stopper 30 for locking the ball retainer 5 is located immediately above the upper end of the guide post 3, the substantially entire length of the ball retainer 5 is Because they are in contact.

That is, as in the second example shown in FIG. 2, when the stopper 30 is attached to the flat surface at the tip of the guide post 3, there is a problem that the ball retainer 5 jumps out of the guide post 3. In order to avoid this, the guide post 3 is shortened and the guide bush 4 is lengthened, and the design is complicated. For this reason, the stopper 30 is embedded in the tip of the guide post 3 in the structure shown in FIG. 3
Is more preferred.

The guide device according to the present invention described above
On the ball retainer 5 supported by the first spring 6, the second
One of the features is that the spring 20 is added. The effect is shown by a comparative experiment with a conventional product. FIG.
Shows the positions of the ball retainer 5 at the top dead center (initial height and post-test height) at the initial stage and after the test in the guide device used in the experiment. The ball retainer 5 between the guide post 3 and the guide bush 4 is supported by a first spring 6 and a second spring 20 from above and below. In the test, the mold was reciprocated 10,000 times, and the difference between the initial height and the height after the test is shown in Table 1.

[0049]

[Table 1]

In the above table, no additional spring is a conventional example, and additional spring corresponds to the present invention. As is clear from this data, it can be seen that the present invention with the addition of the spring has a smaller displacement after the test.

[0051]

According to the present invention, a guide member (such as a ball retainer) is provided between a sliding guide post and a guide bush.
A mold guide device having a movable stopper for pressing the guide member and two springs for supporting the guide member with opposite forces, wherein a force generated by a first spring for pushing up the guide member and a guide member are provided. Since the structure is such that the force generated by the second spring that is pulled down is balanced, it is possible to suppress the position of the guide member from shifting.

In addition, there is no inconvenience such as the guide member coming off from between the guide post and the guide bush, or the guide member and the stopper being damaged, so that adjustment and maintenance work can be reduced.

Further, since the second spring generates a force for pulling down the stopper member, the collision that occurs when the guide member reaches the upper limit of operation is reduced, and the guide member and the stopper are prevented from being broken by fatigue. Can be.

If an adjusting collar for setting the movable range of the stopper member is provided, the upper limit of the operation of the guide member can be changed in accordance with the use conditions of the mold. The effect of can be achieved.

In particular, in the invention according to claim 2, wherein the stopper is movable, an adjusting collar for setting the movable range of the stopper member is provided, and the height of the adjusting collar is changed according to the use condition of the mold. Even so, since the relationship between the forces generated by the first spring and the second spring is maintained, the above effects can be achieved in various molds.

Further, since the second spring generates a force for pulling down the shaft provided with the stopper member, even if the guide member is reciprocating at a speed faster than the free fall, the stopper member is not moved by the guide member. Movement can be followed.

Further, since the second spring generates a force for pulling down the shaft portion provided with the stopper member, when the vertical position relationship between the die and the punch of the mold is opposite, for example, the guide post is opposite to the embodiment. Even when is located on the upper side, the stopper member can follow the operation of the guide member, and the stopper member is not caught and damaged.

Further, according to the fifth aspect of the present invention, by rotating the shaft protruding outside the guide post, the mounting member can be removed from the guide post, and the entire stopper can be removed from the guide post. Therefore, the second spring provided on the shaft portion in the concave portion of the guide post can be easily replaced freely according to the type of the mold.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state at an upper limit position and a lower limit position in a guide device for a press die according to a first example of an embodiment.

FIG. 2 is a sectional view showing a state at an upper limit position and a lower limit position in a guide device for a press die according to a second example of the embodiment.

FIG. 3 is a sectional view showing a state at an upper limit position and a lower limit position in a guide device for a press die according to a third example of the embodiment;

FIG. 4 is a schematic cross-sectional view of a guide device of a press die showing a state before and after a test showing an effect of the present invention.

FIG. 5 is a sectional view showing a first example of the structure of a conventional press die and its guide device.

FIG. 6 is a sectional view showing a second example of the structure of a conventional press die and its guide device.

FIG. 7 is a sectional view showing a third example of the structure of a conventional press die and its guide device.

FIG. 8 is a cross-sectional view illustrating an example of the structure of a conventional press die guide device.

FIG. 9 is a cross-sectional view showing another example of the structure of a conventional guide device for a press die and its problems.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Die holder which is a 1st holding plate, 2 ... Punch holder which is a 2nd holding plate, 3 ... Guide post, 4 ... Guide bush, 5 ... Ball retainer as a guide member, 6 ... 1st
Spring 10, concave portion, 12 mounting member, 13 through hole, 14 stopper, 15 shaft portion, 16 stopper member, 17 retaining member, 20 second spring, 27 retaining member, 30 ... stopper, 40 ... recess.

Claims (5)

[Claims] 1. A guide post provided on a first holding plate to which a first mold is attached, and the guide post is inserted into a second holding plate to which a second mold is attached. A guide bush, a guide member movably provided between the guide post and the guide bush, and a first guide provided outside the guide post and supporting the guide member toward the distal end of the guide post. The first mold and the second mold function by having a spring, and the first holding plate and the second holding plate move relatively along the guide direction of the guide post and the guide bush. In a guide device for a press die provided on a press die, a stopper provided on an upper end of the guide post and movable in a predetermined range along the moving direction, and a stopper provided on the stopper via the stopper The press die guide device having a second spring supporting the opposite direction to the guide member and the first spring. 2. A guide post provided on a first holding plate to which a first mold is attached and a guide post provided on a second holding plate to which a second mold is attached, wherein the guide post is inserted. A guide bush, a guide member movably provided between the guide post and the guide bush, and a guide member provided outside the guide post and in contact with a base end side of the guide member to connect the guide member to the guide post. And a first spring supported toward the distal end of the first metal plate. The first holding plate and the second holding plate relatively move along the guide direction of the guide post and the guide bush, so that the first metal is moved. In a press die guide device provided in a press die in which a die and a second die function, a concave portion provided at an upper end of the guide post, and a through hole are provided detachably in the concave portion. Mounting members, A stopper having a shaft portion slidably inserted through the through hole of the mounting member, and a stopper member attached to a tip of the shaft portion outside the concave portion and locked to a tip side of the first spring; A retaining member attached to the base end of the shaft portion inside the concave portion to prevent the shaft portion from falling out of the through-hole; and an interposition between the attaching member and the retaining member inside the concave portion. A second spring provided outside the shaft portion and supporting the guide member via the stopper in a direction opposite to the first spring. 3. A guide post provided on a first holding plate to which a first mold is attached, and said guide post provided on a second holding plate to which a second mold is attached, and said guide post is inserted. A guide member movably provided between the guide post and the guide bush, and a guide member provided outside the guide post and in contact with a base end side of the guide member to connect the guide member to the guide post. And a first spring supported toward the distal end of the first metal plate. The first holding plate and the second holding plate relatively move along the guide direction of the guide post and the guide bush, so that the first metal is moved. In a guide device for a press die provided on a press die in which a die and a second die function, a retaining member provided on a flat upper end of the guide post, an upper end of the guide post and the retainer member of A stopper provided on the side of the guide member, and a stopper that locks on the distal end side of the guide member, the stopper being movable along the retaining member within a predetermined range in the movement direction; The guide member is provided between the stopper member and the stopper, and the guide member is moved to the first position via the locking portion of the stopper.
And a second spring that supports the spring in the opposite direction. 4. A guide post provided on a first holding plate to which a first mold is attached, and said guide post provided on a second holding plate to which a second mold is attached, wherein said guide post is inserted. A guide member movably provided between the guide post and the guide bush, and a guide member provided outside the guide post and in contact with a base end side of the guide member to connect the guide member to the guide post. And a first spring supported toward the distal end of the first metal plate. The first holding plate and the second holding plate relatively move along the guide direction of the guide post and the guide bush, so that the first metal is moved. In a press die guide device provided in a press die in which a die and a second die function, a concave portion provided in an upper end of the guide post; a retaining member provided in a bottom portion of the concave portion; In the recess A base portion provided outside the retaining member, and a locking portion that locks on the distal end side of the guide member, and is movable along the retaining member within a predetermined range in the moving direction. A stopper provided between the stopper member and the stopper, and the guide member is moved to the first position via the locking portion of the stopper.
And a second spring that supports the spring in the opposite direction. 5. The through-hole of the mounting member and the shaft member inserted therethrough have a predetermined cross-sectional shape such that both are relatively movable in the axial direction and are not movable in the rotational direction. 3. The method according to claim 2, wherein
A guide device for the press die described.