JP3185019B2 - Press cutting machine and cutting blade mold - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a knitted fabric, a nonwoven fabric,
Press cutters and cutting blade dies for cutting mold pieces from sheet materials such as artificial leather, and more specifically, productivity that simplifies the operation of attaching and detaching the cutting blade dies and reduces the cost of the cutting blade dies. The invention relates to a press cutter and a cutting blade having excellent cutting performance.

[0002]

2. Description of the Related Art A press cutter is equipped with a cutting blade at a lower end of a press head, and presses the cutting blade onto a plurality of sheets to be cut such as fabrics laminated on a moving table. This machine efficiently cuts the same mold pieces in large quantities.
Generally, the cutting blade die has a configuration in which the blade die is fixed to one side of the support plate, and when it is mounted on the press head of the press cutting machine, it is tightened and fixed using a wrench with bolts and nuts via the above support plate It is supposed to. But,
By attaching and detaching the cutting blade type with bolts and nuts,
In addition, those that are firmly tightened and fixed so that they do not loosen during press cutting, it takes a lot of time to remove and attach the work, and it takes a lot of time to replace the cutting blade mold, so productivity decreases significantly Was causing it to.

On the other hand, in a conventional press cutter, since a mounting mechanism of the cutting blade die to the press head is specified to have a fixed structure, it is used as a supporting plate of the cutting blade die regardless of the shape and size of the blade die. It had to be of a certain size. Therefore, even for blades with small shapes and dimensions,
Since it is necessary to attach the support plate to a support plate having a predetermined large size, it is necessary to use a wasteful material having many blanks as the support plate, which causes an increase in cost.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a press cutting machine which can simplify the operation of attaching and detaching a cutting blade die and improve productivity. Another object of the present invention is to provide a press cutting machine and a cutting machine capable of selecting a supporting plate of a cutting blade die having a size corresponding to the shape and size of the blade die to reduce waste of the support plate material. An object of the present invention is to provide a blade type.

[0005]

In order to achieve the first object, according to the present invention, there is provided a moving table which can be moved in the front-rear direction by stacking sheet materials to be cut, and cutting the lower end of the moving table above the moving table. In a press cutting machine in which a press head equipped with a cutting blade mold is vertically provided, a flange portion is protruded from the lower end of the press head, and a pair of left and right holding plates on both left and right sides of the flange portion are vertically movable. Mounting, detachably holding a cutting blade-type support plate between the holding plate and the flange portion , and connecting the flange portion to a shaft of the press head.
Rotation can be stopped at 180 ° centering on the heart.
It is characterized by a press cutter in which a flange portion can be locked with a knock pin at a stop position .

As described above, a pair of left and right holding plates are mounted on the left and right sides of the flange portion projecting from the lower end of the press head so as to be vertically movable, and this is a cutting blade type mounting mechanism. The cutting blade can be easily attached and detached in a short time only by the lifting operation. According to the present invention, which achieves a second object, in the configuration of the press cutting machine, a plurality of pairs of holding plates having different intervals are attached as the holding plates, and a cutting blade mold is attached to any one of the plurality of pairs. And a plurality of types of cutting blade molds each having a plurality of supporting plates having different widths corresponding to the size of the pair spacing for each of the plurality of pairs of clamping plates. It is characterized by becoming.

[0007] As described above, the detaching mechanism of the cutting blade type is constituted by mounting the left and right pair of holding plates so as to be vertically movable, and a plurality of pairs having different intervals are provided as such pair of holding plates. In addition, a plurality of types having different sizes can be used as the supporting plate of the cutting blade. Therefore, although a large supporting plate is used for a blade having a large shape or size, a supporting plate having a small size can be attached to a small blade, and waste of the supporting plate material can be eliminated.

[0008]

1 and 2 show a front view and a side view, respectively, of a press cutter according to an embodiment of the present invention. In the figure, reference numeral 20 denotes a base installed on the floor, on which a fixed table 34 is provided, and on which a movable table 30 which can slide back and forth with arrow A as a forward direction is provided. Have been. On the upper surface of the moving table 30, a sheet material F to be cut on which a plurality of fabrics are laminated via a rubber sheet 35 for buffering is placed. Although the rubber sheet 35 is not always necessary, its arrangement reduces the impact force at the time of press cutting, and prevents the cutting blade mold and the like from being damaged.

The front-rear moving mechanism for moving the moving table 30 includes a ball screw 31 extending in the front-rear direction inside a fixed table 34, a ball nut 32 screwed into the ball screw 31, and a ball motor 32 connected to the servo motor. The ball screw 31 is rotationally driven by 33 to move forward or backward. The front and rear movement of the moving table 30 is performed by being connected to the ball nut 32.

An extension table 38 is provided at the rear of the fixed table 34 so that an excess sheet material F to be cut which does not rest on the moving table 30 is supported. A flexible cover 36 may be provided on the rear end of the moving table 30 if necessary.
The flexible cover 36 is connected to the moving table 30.
Irrespective of the position, the fixed table 34 is always covered so that dust and the like do not accumulate on the surface of the fixed table 34.

Supports 21 and 21 are fixed to both left and right sides of the base 20, and a cross beam 22 is provided between upper ends of the supports 21 and 21.
Is laid horizontally so as to straddle it. The support part 2 is attached to this cross beam 22.
A press head 24 is vertically provided via the base 3, and a cutting blade G is attached to a lower end of the press head 24. A hydraulic cylinder 23c is provided in the support portion 23, and the press head 24 is moved up and down by the hydraulic cylinder 23c to press-cut the sheet material F to be cut on the moving table 30 by the cutting blade die G at the lower end. .

An air cylinder 25 is attached to the side of the press head 24. The air cylinder 25 reciprocates to move the lower end flange portion 43 around the center axis of the press head 24 by 0 ° to 180 °.
, Whereby the direction of the cutting blade die G can be alternately reversed by 180 °.

The support portion 2 from which the press head 24 is suspended
3 reciprocates left and right along a rail 26 extending in the longitudinal direction of the cross beam 22 by a horizontal movement mechanism. The lateral movement mechanism includes a ball screw 27 provided in the longitudinal direction of the cross beam 22 and a ball nut 28 screwed into the ball screw 27, and the ball nut 28 is rotationally driven by a servo motor 29. To reciprocate left and right. The support portion 23 is connected to a ball nut 28 and reciprocates.

The operation of press-cutting the sheet material F to be cut on the moving table 30 by the cutting blade die G by the press operation of the press head 24 is performed by moving the press head 24 laterally by a predetermined pitch by the above-mentioned lateral moving mechanism. When the press cutting of one row is completed, and the horizontal row of press cutting is completed, the moving table 30 is advanced by a predetermined pitch by the above-mentioned longitudinal movement mechanism, and the next horizontal example of press cutting is performed while being laterally moved by a predetermined pitch by the horizontal moving mechanism. , And so on.

A pressing bar 50 is provided behind the press head 24 so as to cross over the moving table 30. The holding bar 50 is vertically moved up and down by cylinders 51 attached to both sides of the base 20, and is lowered during press cutting to press the sheet material F to be cut on the moving table 30. It has become. As described above, the pressing bar 50 presses the sheet material F to be cut at the time of press cutting, so that the layers of the sheet material F in which a plurality of fabrics or the like are laminated are shifted or pulled during the cutting to cut. Mistakes can be prevented.

At the front side of the press head 24, there is provided a cutter 52 for cutting the remaining cloth which extends linearly in a direction crossing the direction in which the sheet material F to be cut extends. As shown in FIGS. 6A and 6B, the cutter 52 for cutting the remaining cloth is connected to an air cylinder 53 fixed to the front surface of the press head 24 and moves up and down. The remaining cloth of the sheet material F to be cut which has been sent forward is cut off. By appropriately separating the remaining cloth by the remaining cloth cutting cutter 52 in this manner,
A load such as wrinkles or dragging can be prevented from being applied to the sheet material F before cutting.

In the press cutter according to the present invention, the mounting mechanism for attaching the cutting blade die G to the press head 25 is configured as shown in FIGS. However, as shown in FIG. 5, a plurality of types of support plates having different sizes can be used. As shown in FIG. 3, the mounting mechanism of the cutting blade mold includes a flange 43 protruding from the lower end of the press head 24.
And two pairs of left and right holding plates 46a, 46 at positions on the left and right sides of the moving table 30 in the forward direction A of the moving table 30.
a and 46b, 46b are respectively attached to the front part and the rear part. Each of the holding plates 46a and 46b is formed in an L-shape when viewed from the front. On the other hand, an L-shaped recess is formed on the flange 43 side so that the L-shaped holding plates 46a and 46b are fitted. , The flange 43 and the holding plate 46a,
The lower surface of 46b is arranged to be flush.

These holding plates 46a, 46a; 46b, 4
6b is an air cylinder 4 provided on the upper surface of the flange 43.
4a, 44a; 44b, 44b piston rod 45
a, 45a; 45b, 45b vertically move up and down. With such a vertically moving structure, between the pair of holding plates 46a, 46a on both outer sides and the flange 43,
Further, between the pair of holding plates 46b, 46b on the inner side thereof and the flange portion 43, two sets of mounting mechanisms for holding the cutting blade type support plates are formed.

In the present invention, the air cylinder 44
Each of a and 44b may be a single-acting type or a double-acting type. That is, a single-acting cylinder in which compressed air is supplied to only one chamber of the piston or a double-acting cylinder in which pressure is supplied to both chambers of the piston may be used. Are piston rods 45a,
A configuration in which compressed air is supplied to a lower chamber for moving 45b upward.

Of the two sets of mounting mechanisms provided on the press head 25 as described above, the holding plates 46a, 46a on both outer sides are provided.
When mounting the cutting blade type G ₁ to the mounting mechanism is performed as follows. Cutting blade type G ₁ is cutting die 1 is fixed on a flat support plate 2, the support plate 2 a length L ₁ × width W
It is formed in the size of ₁ . First, from the fitted state in FIG. 3A, the piston rod 45a is lowered by driving the air cylinder 44a, and the holding plates 46a, 46a are moved from FIG.
By lowering as shown in (B), a gap is formed between the flange 43 and the lower surface of the concave portion. Then, both side edge portions of the support plate 2 of the cutting blade type G ₁ into the gap, the holding plate 46a is inserted as shown by the arrow, it is supported on 46a. Then, FIG.
The mounting is completed by pulling up the piston rods 45a and 45a and clamping the supporting plate 2 of the cutting blade G between the clamping plates 46a and 46a and the flange portion 43 as shown in FIG.

According to the above mounting mechanism, there is no need to perform a tightening operation or a loosening operation using a tool such as a wrench, unlike the conventional mounting mechanism for tightening bolts and nuts. Since the holding plate 46a only needs to be moved up and down by 44a, the cutting blade die G can be attached and detached with a single touch in a short time.

The holding plates 46b, 4 attached to the inside of the holding mechanism of the holding plates 46a, 46a and having a small interval therebetween.
Mounting mechanism constructed from 6b is adapted to the width of the support plate 2 than the cutting blade type G ₁ is mounted a cutting blade type G _2, G ₃ narrow W _2. However, the basic structure is such that the holding plate 46b is moved up and down by the piston lot 45b of the air cylinder 44b, and is substantially the same as the mounting mechanism of the holding plate 46a.

This mounting mechanism mounts two different cutting blade dies G ₂ and G ₃ having the length L ₁ and L ₂ of the support plate 2. ) to differ in that be provided with a recess 47 of length L ₂ in the middle portion of the overall length L ₁ as shown. The support plate 2 has a length L ₁ × width W
_When the cutting blade die G2 of No. ₂ is mounted, as shown in FIG. 4B, the end of the support plate 2 is supported by the entire length of the holding plate 46b, and the length of the support plate 2 is L ₂ ×. when mounting the cutting blade type G ₃ having a width W _2, as in FIG. 4 (C), the holding plate 4
The end of 6b is fitted and supported in the concave portion 47.

As described above, the mounting mechanism of the press cutter according to the present invention can be adapted to support plates having different sizes. That is, as shown in FIG.
A cutting blade die G ₁ having a length L ₁ × width W ₁ , and a cutting blade die G having a length L ₁ × width W _{2 as shown} in FIG.
_2, FIG. 5 a length L ₂ × width W ₂ is one of the cutting blade type cutting blade type G ₃ as (C) also can be mounted. Therefore, it is possible to use a large support plate for a blade having a large shape or size, but to use a small support plate for a blade having a small shape or size. The waste of the support plate material can be greatly reduced as compared with the conventional cutting blade die of which the type is limited to one type.

As described above, the size of the support plate can be selected according to the blade shape. Therefore, the material of the support plate used for the cutting blade shape is forcibly increased in thickness from the viewpoint of strength. There is no need to use a material, and not only a metal material such as steel but also a resin material can be used.
In particular, in the case of a resin material, it is preferable to use a transparent resin. By using a transparent resin, the position of the blade on the back side can be seen and confirmed from the upper surface of the support plate, so that efficient cutting can be performed accurately so that the sheet material to be cut is not wasted. Is possible.

In the press cutting machine described above, the configuration in which the flange portion 43 of the press head 24 can be alternately inverted between 0 ° and 180 ° together with the cutting blade die G is as follows. This is an important mechanism when the mold is cut into a fine state so as not to cause a problem. For example, when an isosceles triangular mold piece is cut in multiple stages, one row at a time, if the rows in each row are cut with the same orientation of the mold pieces, wasteful space between adjacent mold pieces is obtained. Occurs in large quantities. However, by inverting the cutting blade die G every other row by 180 ° and shifting the cutting blade die G by half a pitch in the horizontal direction, the front and rear reversed mold pieces are interposed in the margin between the mold pieces. This is because it is possible to perform cutting without causing waste of blank space.

In the above-described embodiment, the air cylinder 25 is exemplified as a driving source for reversing the cutting blade G together with the flange 43, but the driving source is not limited to this.
A servomotor or the like may be used. In the case of a servomotor, the flange 43 can be stopped at an arbitrary angular position, so that the cutting blade G can be stopped at an intermediate angle between 0 ° and 180 °, and the orientation of the fiber can be reduced. This is advantageous for cutting a sheet F to be cut such as non-woven fabric or artificial leather having no direction.

When the driving source of the reversal is an air cylinder, there is a case where an angular deviation occurs at the stop position. To prevent this, the flange portion 43 is locked at a position where the flange portion 43 is stopped by rotating by 180 °. Preferably, a mechanism is provided. FIGS. 7 and 8 exemplify a lock mechanism for locking the flange portion at the stop position. As shown in FIGS. 7 and 8, this lock mechanism attaches an air cylinder 55 that protrudes and retracts a pair of knock pins 56 at an interval of 180 ° around the lower end of the press head 24, and stops on the flange 43 side. The engagement holes 57 into which the knock pins 56 are fitted are also provided at 180 ° intervals corresponding to the positions.

According to this locking mechanism, as shown in FIGS. 7A and 8A, at a predetermined stop position, the knock pin 56 on the press head 24 side is fitted into the engaging hole 57 on the flange 43 side. In this case, the flange 43 is fixed at a predetermined stop position. When inverting by 180 °, FIG.
The knock pin 56 is disengaged from the engagement hole 57 as shown in FIG. 7B, and the flange 43 is rotated by the operation of the air cylinder 25 as shown in FIGS. 7B and 8C. Then, when the knock pin 56 is again projected and fitted into the engagement hole 57 at the stop position where the flange portion 43 is rotated by 180 °, the flange portion 43 can be locked at the stop position.

Therefore, if the lock mechanism is used, accurate and high-precision press cutting can be performed even when the cutting blade die G is turned by 180 ° together with the flange portion.

[0031]

As described above, according to the press cutting machine of the present invention, a pair of left and right holding plates are mounted on the left and right sides of the flange portion projecting from the lower end of the press head so as to be vertically movable, and are cut. Since the cutting blade die mounting mechanism is used, the cutting blade die can be easily attached / detached in a short time only by the lifting / lowering operation of the holding plate, and the productivity can be improved.

When a plurality of pairs of holding plates having different intervals are attached as a pair of holding plates, and a cutting blade type support plate is attached to any one of the plurality of pairs, a cutting plate is provided. Multiple types with different sizes can be used as blade-type support plates, and large-size blades use large-size support plates, but small-size blades require smaller-size support plates. As a result, waste of the support plate material can be eliminated.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a press cutter according to an embodiment of the present invention.

FIG. 2 is a side view of the press cutter of FIG.

FIG. 3 is an explanatory view of a mounting mechanism of a cutting blade die in the press cutting machine of the present invention, (A) is a perspective view before mounting,
(B) is a perspective view during mounting operation, (C) is a perspective view after mounting.

FIG. 4 is an explanatory view showing only one side of a holding plate provided inside the mounting mechanism of FIG. 3, (A) is a perspective view of the holding plate,
(B) is a perspective view when the holding plate supports a cutting blade die having a long support plate length, and (C) is a perspective view when the holding plate supports a cutting blade die having a short support plate length. FIG.

FIGS. 5A, 5B, and 5C are perspective views each showing a cutting blade mold used in the present invention.

6A and 6B show a portion of a remaining cloth cutting blade provided in the press cutter of the present invention, wherein FIG. 6A is a front view before a cutting operation, and FIG. 6B is a front view at the time of cutting.

FIGS. 7A, 7B, and 7C are explanatory views showing the operation of a lock mechanism provided in the press cutter of the present invention in the order of steps.

FIGS. 8 (A), (B), (C) and (D) are explanatory views showing the operation of a lock mechanism provided in the press cutter of the present invention in the order of steps.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 blade mold 2 support plate G, G ₁ , G ₂ , G ₃ press cutting blade mold 20 base 21 column 22 cross beam 23 support portion 23c hydraulic cylinder 24 press head 30 moving table 46a, 46a; 46b, 46b clamping plate 44a , 44a; 44b, 44b Air cylinders 45a, 45a; 45b, 45b Piston rod 43 Flange part 50 Holding bar 52 Cutter for cutting remaining cloth

Continuation of the front page (72) Inventor Takeshi Saito No. 1 Nishinouchi, Omori, Fukushima City, Fukushima Prefecture Fukushima Wacoal Sewing Co., Ltd. (56) References JP-A-5-147000 (JP, A) JP-A-56-50732 (JP) , A) JP-A-9-38798 (JP, A) JP-A-60-11799 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B26F 1/38 B26F 1/44 B26D 37/14 D06H 7/00

Claims (5)

(57) [Claims] 1. A press cutting machine in which a moving table which is capable of moving in the front-rear direction by laminating sheet materials to be cut is installed, and a press head having a cutting blade die mounted at a lower end above the moving table is vertically provided. A flange is protruded from the lower end of the press head, and a pair of left and right holding plates are vertically movably mounted on both right and left sides of the flange, and a cutting blade is provided between the holding plate and the flange. The mold support plate is detachably clamped , and the flange portion is
While being able to stop rotation by 180 ° around the axis,
A press cutter in which the flange portion can be locked with a knock pin at a stop position . 2. The press cutter according to claim 1, wherein a plurality of pairs of holding plates having different intervals are attached as the holding plates, and a cutting blade-type support plate is attached to any one of the pairs. 3. A cutting blade for remaining cloth which moves up and down to an upper surface of the moving table is provided at a front side of the press head.
Or the press cutter according to 2. 4. A pressing bar is provided on the rear side of the press head so as to be able to move up and down so as to cross over the moving table, and the pressing bar presses a sheet material to be cut on the moving table at the time of press cutting. The press cutter according to any one of claims 1 to 3, wherein 5. A cutting blade type used in the press cutter according to any one of claims 2-4, corresponding to the size of the pair spacing holding plate each of said plurality of pairs And a plurality of types of cutting blades having support plates of different widths.