JPH0615316A - Horizontal trimming press - Google Patents

Abstract

PURPOSE:To provide a horizontal trimming press excellent in work efficiency and controllability. CONSTITUTION:A set of movable members 5, 6 is oppositely arranged so as to be approachable/separable, a cylindrical female die 2 is provided on the opposed face of a 1st movable member 5 on one side and a 1st male die 3 which has a sectional shape approximately made to coincide with the inside circumferential shape of the cylindrical female die 2 and inserted in the cylindrical female die 2 is provided on the opposed face of a 2nd movable member 6 on the other side. Further, a 2nd male die 4 which appears in the cylindrical female die 2 and can hold the main body part 11a of product being the object of trimming therebetween with the 1st male die 3 is provided on the 1st movable member 5 and, in the state that the main body part 11a of product is held between the 1st male die 3 and the 2nd male die 4, the unnecessary part attendant on the main body part 11a of the product is cut off and removed by inserting the 1st male die 3 into the cylindrical female die 2 and also they are composed so that the main body part 11a of product can be held in the cylindrical female die 2 at least just after removing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal trimming press machine for punching unnecessary parts such as runners and overflows of casting products such as die casting products.

[0002]

2. Description of the Related Art A horizontal automatic trimming press machine is generally used for removing unnecessary parts such as runners and overflows of die cast products because it can automatically separate the removed unnecessary parts and the removed products. An example of such a horizontal automatic trimming press is disclosed in Japanese Patent Laid-Open No. 63-13.
The one described in Japanese Patent No. 2731 is known.

In the horizontal automatic trimming press machine described above,
Hold the stamp at the end of the runner of the product after casting and position it between the movable male mold and the fixed female mold that are arranged opposite to each other, and then contact the female mold, and from the front while pressing the back part of this product It is configured so that the male mold can be moved to punch runners and overflows, and trimmed products and removed parts can be selected and taken out.

However, in the above-mentioned structure, the punching means, the means for pressing from the back of the product, and the holding means for holding the part to be removed of the product are independent, so that the structure is complicated and the operation is difficult. Not only is it complicated, but the cycle of the punching process requires time, resulting in poor work efficiency.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a horizontal trimming press having excellent work efficiency and controllability.

[0006]

Thus, according to the invention of "Claim 1" of the present application, "a pair of movable members (5) (6) which are arranged so as to face each other and can approach and separate from each other, and one of A cylindrical female mold (2) provided on the facing surface of the first movable member (5) and a cylindrical female mold (2) provided on the facing surface of the other second movable member (6).
This cylindrical female mold has a cross-sectional shape that substantially matches the inner peripheral shape of
The first male mold (3) fitted into the (2) and the first movable member (5) so as to be retractable in the cylindrical female mold (2),
It is composed of a second male mold (4) which can face the male mold (3) and holds the product main body (11a), and the first male mold (3) and the second male mold (4) make the product main body. While sandwiching (11a), the first male mold (3) is inserted into the cylindrical female mold (2) to cut and remove unnecessary parts attached to the product body (11a), and at least immediately after removal. There is provided a horizontal trimming press machine (1) 'configured such that the product body portion (11a) is held in the tubular female die (2).

The trimming press (1) of the present invention is constructed so that both the cylindrical female mold (2) and the first male mold (3) that contribute to the trimming operation are movable. Both the first movable member (5) provided with the tubular female mold (2) and the second movable member (6) provided with the first male mold (3) are preferably hydraulically driven. The first movable member (5) is provided with a second male mold (4) which can reciprocate inside the cylindrical female mold (2) and project from the female mold toward the first male mold (3). To be In this case, the drive of the second male mold (4) is also preferably hydraulically driven, but may be lower than the hydraulic pressure for driving the first and second movable members (5) and (6).
The cylindrical female mold (2), the first male mold (3) and the second male mold (4) are all provided coaxially.

The first male mold (3) and the second male mold (4) sandwich the product (11) to be trimmed at the first male mold (3) and the second male mold (4).
By shortening the strokes of the male mold (4) and the cylindrical female mold (2), the position where the cycle can be performed in the minimum time is arbitrarily selected.

In the trimming press (1) of the present invention, the product main body (11a) immediately after the unnecessary portion is removed is a cylindrical female mold.
It may be sandwiched between the first male mold (3) and the second male mold (4) in (2), and the inner wall of the tubular female mold (2) and the product main body (11)
The side surface of a) may be held in engagement, in short, the fall timing of the unnecessary portion that has been cut and removed and the fall timing of the product main body portion (11a) discharged from the cylindrical female mold (2). It only needs to be configured so that there is a gap between the two.

That is, the unnecessary portion and the product main body portion (11a) can be discriminated from each other by the above-mentioned deviation of the drop timing. As an example, when the product body (11a) is dropped, the tray is located under the trimming press, and when the unnecessary portion is dropped, the tray has a product receiving chute and a tray so that the tray can be removed from the bottom of the press. Can be mentioned.

The tip shape of the first male die (3) and the tip shape of the second male die (4) are appropriately changed according to the uneven shape of the product body (11a).

[0012]

According to the invention of "Claim 1" of the present application, from the inside of the cylindrical female mold (2) provided on the facing surface of the first movable member (5) to the second
The second male mold (4) protruding toward the movable member (6) and the first male mold (4)
The product main body portion (11a) to be trimmed is sandwiched by the first male mold (3) provided on the facing surface of the second movable member (6) driven close to the movable member (5), and in this state, First
When the movable member (5) is driven close to the second movable member (6), the cylindrical female die (2) is inserted through the second male die (4) and the first male die (3) is inserted. It will be. As a result, unnecessary parts attached to the product main body portion (11a) are cut and removed by the outer circumference of the first male mold (3) and the inner circumference of the tubular female mold (2), and then dropped. At this time, the product main body part (11a) is held in the cylindrical female mold (2).

Then, the first movable member (5) is replaced by the second movable member.
(6) is operated away from the product body (1) in the tubular female mold (2)
The pinched state of 1a) is released, but normally the product body (11a)
The cut surface on the side surface and the inner wall of the cylindrical female die (2) are engaged and do not separate. When the second male mold (4) is further actuated to project in this state, the product body (11a) is discharged from the cylindrical female mold (2) and dropped.

[0014]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Embodiment 1 FIG. 1 is a side view of a lateral trimming press machine according to the present invention. In the figure, the horizontal trimming press machine (1) includes a press frame (10), a tie bar (9), a first fixed plate (7) and a second fixed plate (8), and a first movable member.
(5) and second movable member (6), tubular female mold (2), first male mold (3),
It is mainly composed of a second male type (4), a first movable member driving means (51), a second movable member driving means (61), and a second male type driving means (41).

The first fixing plate (7) and the second fixing plate (8) are fixed to the left and right ends of the press frame (10), respectively, and face each other. A pair of tie bars (9) are installed on the.

The first movable member (5) and the second movable member (6) are
It is movably inserted through the tie bar (9). First
As shown in the figure, the movable member (5) has a bottomed cylindrical recessed portion (5a) formed in the center, and the opening of this cylindrical recessed portion (5a) is the second movable member (6). And a cylindrical female mold (2) is attached to this opening.

The first movable member driving means (51) is inserted through the cylinders (53) (53) mounted on the first fixed plate (7) and the first fixed plate (7), and the first movable member (5). Hydraulically driven press cylinder (52) (5) consisting of rods (54) (54) connected to
It is composed of 2).

The second movable member (6) is a plate-shaped member, and the first male mold (3) is attached to the surface facing the first movable member (5). The second movable member driving means (61) is inserted into the cylinders (63) (63) attached to the second fixed plate (8) and the second fixed plate (8) and is connected to the second movable member (6). Hydraulically driven first clamp cylinder consisting of fixed rods (64) (64)
(62) It is composed of (62).

The second male mold (4) is attached to the movable small plate (4a) which reciprocates between the bottom and the opening in the cylindrical recess (5a) of the first movable member (5). And has an outer peripheral shape that is substantially the same as the inner peripheral shape of the cylindrical female mold (2) and has a length that allows it to project from the cylindrical female mold (2) toward the first male mold (3). It has a body.

The second male driving means (41) is the first movable member.
A hydraulically driven second clamp cylinder (42) consisting of a rod (44) inserted into the cylinder (43) attached to (5) and the first movable member (5) and connected to the movable small plate (4a). It is configured.

The cylindrical female mold (2), the first male mold (3) and the second male mold (4) are coaxially arranged. Also, tubular female (2)
The inner peripheral shape of the first male mold (3) and the outer peripheral shape of the first male mold (3) are substantially the same, and is formed so that the first male mold (3) can be inserted into the cylindrical female mold (2). The outer peripheral shape of the 1 male mold (3) is formed so as to match the outer peripheral shape of the product to be trimmed.

Further, the tip portion of the second male die (4) and the tip portion of the first male die (3) are fitted to each other according to the unevenness of the product so that the product to be trimmed can be held by these. It is formed in an uneven shape. For example, as shown in FIG. 2, the product (11) to be normally trimmed has an overflow (11b) and a gate (11b) with respect to the main body (11a) of the product.
c), the runner (11d) and the biscuit (11e) are connected, but if the main body (11a) has a concave shape in this way, it can be stored and pinched. , The first male mold (3) and the second male mold (4) are configured as shown in FIG. 3, but may be configured as shown in FIG. 4 according to the shape of the product to be trimmed. Is appropriately selected.

In the horizontal trimming press machine (1), the tip shapes of the first male die (3) and the second male die (4) are formed depending on the shape of the product (11) to be trimmed and the direction in which it is supported. And the press cylinders (52) (52), the first clamp cylinders (62) (62) and the second clamp cylinder (42).
It is preferable that a position for supporting the product is selected to a position where the drive stroke of 1 is minimized, and the drive stroke of each drive means at that time is set in the control unit.

Next, the horizontal trimming press having the above-mentioned structure
The operation of (1) will be described. First, assuming that the product (11) to be trimmed is as shown in FIG. 2, this biscuit (11e) is a horizontal trimming press machine ( It is supported at the prescribed position in 1).

Next, the first clamp cylinders (62) (62) and the second clamp cylinder (42) are moved closer to each other by a preset distance, and the first male die (3) and the second male die (4) are moved. ) And in product (1
The main body (11a) of 1) is clamped (see FIG. 5) and the chuck is released. In the sandwiching, parts other than the main body part (11a) protrude from the cross-section projected part of the first male mold (3).

Next, when the press cylinders (52) (52) are driven to drive the first movable member (5) close to the second movable member (6) by a predetermined distance, the cylindrical female die (2) is moved. The tip of is cut off the part protruding from the first male mold (3) of the sandwiched product (11), and stops slightly overlapping with the tip of the first male mold (3) (see FIG. 6). ). At this time, the cut portion, that is, the overflow (11b), the gate portion (11c), the runner (11d), and the biscuit (11e) fall.

Next, the first clamp cylinders (61) (61) are driven to separate from each other, and the first male die (3) is retracted to the predetermined position (P1). At this time, the product main body part (11a) whose pinched state has been released
Is held in the cylindrical female mold (2) with its cut surface engaged with the inner wall of the cylindrical female mold (2) and in contact with the tip of the second male mold (4), and does not fall ( (See FIG. 7).

Next, when the second clamp cylinder (42) is driven to approach and the second male die (4) is advanced to the predetermined position (P2), the product main body portion (11a) is tubular female die (2). It is pushed out from and falls (see FIG. 8). By the above operation, the product body (1
1a) is overflow (11b), gate (11c), runner
(11d) and the biscuit (11e) are separated from unnecessary parts, and are selected due to the deviation of the falling timing.

[0029]

According to the present invention, since the trimming is performed while the main body of the product to be trimmed is clamped,
The unnecessary portion can be dropped together with the trimming, and the trimming process time can be shortened. Further, from the above, the falling timing of the removed portion and the falling timing of the main body portion are deviated from each other, so that the selection can be easily performed.

Since the female die for trimming is constructed to be movable, it can be operated immediately after the product is clamped, and the trimming process time can be shortened. Since both the female type and the male type are movably configured, it is possible to perform control so that the stroke can be minimized. In addition, it is necessary to change the female mold and male mold according to the shape of the product to be trimmed, but at this time, if you store the optimum stroke by each mold according to each product, what kind of mold However, it can be arranged at an appropriate position, and the trimming process time can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic side view of an example of a horizontal trimming press of the present invention.

FIG. 2 is a schematic side view of an example of a product to be trimmed.

FIG. 3 is a schematic side view of an essential part of an example of the shape of each tip of the first male mold and the second male mold.

FIG. 4 is a schematic side view of a main part of another example of the shapes of the tip parts of the first male mold and the second male mold.

FIG. 5 is a schematic view of a main part for explaining a relationship among a product, a tubular female mold, a first male mold and a second male mold in a product clamping state in an initial trimming operation.

FIG. 6 is a diagram corresponding to FIG. 5 when trimming.

FIG. 7 is a diagram corresponding to FIG. 5 immediately after trimming.

FIG. 8 is a diagram corresponding to FIG. 5 at the time of discharging the product main body after trimming.

[Explanation of symbols]

(1) ... Horizontal trimming press (2) ... Cylindrical female mold (3) ... First male mold (4) ... Second male mold (4a) ... Movable small plate (5) ... First movable member (5a) … Cylinder with bottomed bottom (6)… Second movable member (7)… First fixed plate (8)… Second fixed plate (9)… Tie bar (10) Press frame (11)… Product (11a)… Product Main body (11b) ... Overflow (11c) ... Gate (11d) ... Runner (11e) ... Biscuit (41) ... Second male drive means (42) ... Second clamp cylinder (51) ... First movable member drive Means (52) ... Press cylinder (61) ... Second movable member driving means (62) ... First clamp cylinder

Claims (1)

[Claims] 1. A set of movable members which are arranged to face each other and can approach and separate from each other, a cylindrical female die provided on the facing surface of one of the first movable members, and an facing surface of the other second movable member. And a first male die having a cross-sectional shape that substantially matches the inner peripheral shape of the tubular female die and fitted and inserted in the tubular female die, and a first male die capable of projecting and retracting in the tubular female die. 1 a second male mold attached to a movable member and capable of sandwiching a product body portion facing the first male die, in a state where the product body portion is sandwiched between the first male die and the second male die. ,
The first male mold is inserted into the cylindrical female mold to cut and remove the unnecessary portion accompanying the product main body, and the product main body is held in the cylindrical female mold at least immediately after the removal. Horizontal type trimming press machine.