KR860001023Y1 - Conveyor of hydraulic cutter - Google Patents

Abstract

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Description

Cutting material conveying device of hydraulic cutting machine

1 is a perspective view of an embodiment of the present invention.

2 is a perspective view of a rudder plate and an air table of the embodiment;

3 is a cross-sectional view of the rudder blade and the tomson blade of the embodiment.

4 is a perspective view of a three-way air nozzle of the embodiment.

5 is a perspective view of a tomson blade of the embodiment.

6 is a plan view of a tomson blade of the embodiment.

7 is a perspective view of the fabric conveyance mechanism of the embodiment.

The present invention relates to a workpiece cutting device in a hydraulic cutting machine that can smoothly convey a workpiece to a punching side.

Usually, a hydraulic cutting machine is used when mass cutting a sheet-like object such as forge, rubber sheet, vinyl sheet, leather sheet or leather products. This hydraulic cutting machine is made to push the punching blade at once by using hydraulic force by inserting several sheet objects overlapped between the punching blade made in the desired shape and the punching plate supporting the blade.

However, when the hydraulic cutting machine is enlarged and the hydraulic force is increased, a so-called four mold press for raising and lowering by four hydraulic cylinders having the pressure head disposed at four corners of the base is used. In this type of hydraulic cutting machine, the punching blade and punching plate for punching the cutting object are installed in the center of the cutting machine main body, so the conveying distance for conveying the cutting material from the cutting part importer to the punching part of the cutting machine main body is increased. In the case of conveying the honeydew by pushing it from the back by the conveying means installed on the outside of the cutting machine main body, if the workpiece is itself a relatively flexible fiber product such as forge, it may not be smoothly conveyed by twisting or overlapping on the way to the punching part. have.

Moreover, since this type of cutting machine is designed to press the pressurizing head toward the hydraulic pressure table side, the spacing formed between the pressurizing head and the hydraulic pressure table at the time of punching is small as the blade side of the punching blade. It was practically difficult to provide a conveyance start stage at such a small interval.

In addition, the distance to be conveyed every time the workpiece is punched, that is, the conveying stroke is determined by the size of the cutting object. Therefore, when the cutting object is relatively large and the single conveying stroke is large, for example, the clamping means for clamping the cutting material is pressurized. It is also possible to provide a conveying means in which the clamp means is pushed out of the cutting machine body just before the head is raised to the periphery of the head to convey the workpiece to the punched portion and the pressurized head is lowered.

However, it is more difficult to install the conveying means when the shape of the cutting object is small and the one-time conveying stroke is relatively small. Therefore, the above-mentioned conveying means is installed outside the main body of the cutting machine so as not to adopt the method of pushing the cutting object from the hydraulic part side. I could not help it.

In addition, the punching plate that supports the punching blade has scratches on its surface every time it is punched out, and this scratch is smoothly conveyed on the punching board, such as being caught by protrusions in the case of the workpiece, especially textile products such as forge. Sometimes I could not.

The present invention has been devised in view of the above circumstances, and it is to provide a workpiece cutting device in a hydraulic cutting machine capable of smoothly conveying on a punching plate without twisting or overlapping the workpiece while conveying the workpiece.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 is an overall perspective view of the hydraulic cutting machine of the present invention, 2 is a hydraulic cutting base body portion, 2 is a fabric stand for placing a plurality of fabrics (3 and 4) wound in a roll shape, such as forge or leather seats, 5 is a fabric conveying mechanism which is sent to the hydraulic foundation basic body part 1 while releasing the fabrics 3 and 4 mounted on the fabric table 2 by a predetermined amount.

By the way, when the hydraulic foundation body part 1 is roughly divided, the base 7 having the hydraulic table 6 disposed on the upper surface thereof and the base 7 arranged on the base 7 are installed on the four corners of the base 7 (not shown). It is composed of a pressure head (8) driven up and down by four hydraulic cylinders.

The pressurizing head 8 is fixed to an intermediate portion of each actuating rod 9 of the hydraulic cylinder projecting upward from the four corners of the hydraulic table 6 and fitted to the distal end of each actuating rod 9. This prevents the sliding of the operating rod 9 without slipping out.

In addition, the hydraulic pressure table 6 is made of a thick steel plate to support the hydraulic force applied from the pressure head 8, and the punching stand 12 having the punching plate 11 integrally installed on the hydraulic pressure table 6 is provided. Wit The punching plate 12 is formed of hard vinyl chloride or the like and shown in FIGS. 2 and 3, and the punching plate 11 is formed in a rectangular accommodating hole 13 provided in the center portion. To accept. The punching plate 11 is formed of a plate-like flexible elastic member 14 made of soft rubber or soft vinyl chloride, and a metal plate 15 such as a steel sheet of 1 mm to several mm, and the metal plate 15 is made of a punching plate ( 11) the force pushing down from the punching blade (which will be described later) on the flexible elastic member 14 and acting on the metal plate 15 so as to form the surface layer portion of the metal plate 15. The water pressure table 6 receives the flexible elastic member 14 provided therein.

In addition, a pair of parallel guides protrude from the support arm (16) and (16) on the front surface of the base (7), and extend over the hydraulic table (6) to the upper surface of the support arms (16). When the members (17) and (17) are installed, and the rudder footrest 12 is slid and moved in accordance with the guide members 17 and 17, the maintenance of the replacement of the rudder foot 11 is performed. The entire punching stand 12 can be pulled out in the forward direction, that is, in the direction of the arrow α. In addition, an air table 19 is provided with a plurality of three-way air nozzles 18 embedded in the rear of the punching stand 12.

The air table 19 pushes up the fabrics 3 and 4 conveyed by the fabric conveyance mechanism 5 upwards by the compressed air ejected from the three-way air nozzle 18 and at the same time controls the spraying direction of the compressed air. According to the specification, the fabric can be smoothly conveyed onto the other footboard 11.

As shown in FIG. 4, the three-way air nozzle 18 integrally installs the cylindrical base portion 21 on the inverted cone-shaped top portion 20 in which the cone shape is turned upside down, and the top portion 20 and Since three grooves 22a, 22b and 22c are provided on the outer circumferential surface of the columnar base 21 to be parallel to the axis l and 90 ° with respect to the axis L, the air nozzles in this direction 18 between the tapered portions 23a of the holes 23 and the grooves 22a, 22b, 22c while inserting the 18 into the holes 23 having the tapered portions 23a drilled on the air table 19. An air passage is formed in the air passage so that the compressed air introduced into the lower portion of the air table 19 is ejected onto the air table 19 through the air passage. In addition, an air tube (not shown) for supplying compressed air supplied from an air compressor or the like is connected to an open portion of the lower portion of each hole 23.

In addition, the grooves 22a and 22c of the nozzles 18 are oriented in a direction orthogonal to the conveying direction β of the fabrics 3 and 4 in the three directions, and the grooves 22b are directed to the fabrics 3 and 3. 4) the direction in which the compressed air is jetted by pointing in the conveying direction β of 4) and the upward direction of both inclination angles perpendicular to the conveying direction β of the original fabrics 3 and 4 and the conveyance of the original fabrics 3 and 4 It is inclined along the direction (beta), and it is set as the upward direction.

On the other hand, the bottom blade punching blade of the pressurizing head 8, as shown in Figs. 5 and 6, a Tomson blade blade in which the base of the punching blade is embedded in a wooden support holder 24 made of Beniya plywood or the like ( 25) is being installed.

The tomson punching blade 25 is formed by bending a blade of a flat object into a predetermined shape so that the fabrics 3 and 4 can be punched into a desired shape. By combining the main blade 26 and the flat auxiliary blade 27, a continuous hexagon is formed.

The Tomson blade blade 25 penetrates several reinforcing bolts 28 in the transverse direction to the inside of the support holder 24 supporting the blades, and simultaneously penetrates one reinforcing bolt 29 in the longitudinal direction. The support holder 24 is fastened toward the center from the end side by the nut 31 fastened to the ends of the respective bolts 28 and 29.

In addition, the support holder 24 around the auxiliary blade 27 is reinforced by penetrating the reinforcing bolt 28 to the lower portion where the auxiliary blade 27 is installed, and the auxiliary blade 27 generated when the fabric is punched is displaced. To prevent them.

In addition, the support holder 24 displaces the blade generated at the time of punching of the cloth by penetrating the bolt 29 over the entire length in the longitudinal direction of the support holder 24, and the support holder 24 is opened in the longitudinal direction. It is to prevent the bend etc. which arise in the longitudinal direction of (24). In addition, the fastening nut 31 screwed to each of the bolts 28 and 29 is inserted into the hole 30 properly drilled in the support holder 24 and fastened with a tool such as a sparner.

In addition, the support holder 24 is divided into three, and the main member 24a and the auxiliary member 24b which are integrally installed on both sides of the main member 24a, which form the tomson blade blade 25. ) And (24c), and the reinforcing bolts 28 are fitted at both sides of the main member 24a in a state where the auxiliary members 24b and 24c are removed. The reinforcing bolt 29 is fitted at the upper portion or the lower portion of the main member 24a.

Moreover, the reinforcement angle 33 of cross-sectional L shape is attached to the outer side of each said auxiliary blade 27, and the fall of the auxiliary blade 27 at the time of a cloth punching is prevented. In this manner, the reinforcing angle 34 is also added to both ends of the main blade 26 to prevent both ends of the main blade 26 from falling.

Moreover, each blade 26 and 27 of the said Tomson tapped blade 25... As shown in FIG. 3, the rubber pieces 36 are filled with the sponge rubber 35, and the upper edges of the sponge rubber 35, in particular, the both edges in which the main blade 26 and the auxiliary blade 27 are fitted. ) Can be easily pushed out of the tom cutter blade (25).

In addition, the tomson punching part is slidably caught by both guide members 37 and 38 in which a pair of members whose cross sections are L-shaped in parallel to the bottom of the pressurizing head 8 is formed at the bottom of the pressing head 8 in parallel. The blade 25 is arranged to be disposed at the bottom of the pressure head 8.

In addition, the distal end 2 has two stages, as shown in FIG. 1, and the bearing member 41 fixed on the support frame 40 is freely provided with the respective shaft rods 42 of the fabrics 3 and 4, respectively. Is rotated.

In addition, the unwinding upper and lower fabrics 3 and 4 are sent to the front while being guided to the guide members 43 and 44 disposed on the support frame 40, and the fabrics are conveyed in a state of overlapping each other through the guide roller 45. Is sent to the mechanism (5).

And the fabric conveyance mechanism 5 is a fixed clamper 51 for clamping the fabric conveyed by being fixed to the support frame 50 side at the front fixed position of the hydraulic cutting base body portion 1 as shown in FIG. And the fixed clamper 51 is installed in the front of the fixed 51 clamper so as to reciprocate in the direction of the fixed 51 clamper, advancing in the state of clamping the fabrics 3 and 4, and retreating with the clamp released. And a moving clamper 52 for conveying 4) toward the hydraulic cutting base body portion 1. The fixed clamper 51 is a clamp frame 53 which is defined as both ends of the support frame 15 and is orthogonal to the distal conveyance direction β, and is fixed to both ends of the clamp table 53. It is attached to the actuating rods 54a and 54a of 54 and 54, and is a clamp rod 55 which is driven up and down while being in parallel with the clamp stage 53. The upper surface of the clamp stage 53 and the clamp The rod 55 is gripped at both ends by a rubber pedestal 56 fixed to the lower surface at fixed intervals. In addition, the movable clamper 52 is guided by two parallel guide rods 57, 57 placed on both sides of the distal conveyance mechanism 5 over the support frame 50, and the slide 59 moves to slide. Both ends are fixed to (59), and the clamp stand 60 extends in a direction orthogonal to the distal end conveyance direction β and the hydraulic cylinders 61 and 6 fixed to both end portions of the clamp stand 60. Attached to the working rods 61a and 61a of the clamp rod 62 to be elevated and driven while being in parallel with the clamp rod 60, and the upper surface of the clamp rod 60 and the clamp rod 62 The fabric is held on both sides by rubber pedestals 33 fixed to the lower surface at fixed intervals.

In addition, the movable clamper 52 is driven back and forth along the distal conveyance direction β by a driving mechanism provided on both sides of the distal conveyance mechanism 5.

In other words, the pinion is placed between the mover 59 and the mover 64 in the same manner as the mover 59 and the rack 65 is placed between the mover 64 sliding and moving along the guide rod 57. (66) is fixedly attached to the tip of the operating rod (67a) of the hydraulic cylinder (67) fixed to the support frame (50) side to move forward and backward drive the movable clamper (52) by the hydraulic control of the hydraulic cylinder (67) I'm trying to.

Furthermore, the pinion 66 is supported from the bottom by engaging the pinion 66 with the rack 68 fixed to the support frame 50 side.

Moreover, the proximal end of the rib-shaped support plate 69 is fixed to each pedestal 63 fixed to the clamping base 60 on the side of the movable clamp 52, and the tip end of the support plate 69 is fixed to the pressure head 8. It extends to the air table 19 which arrange | positions under the (), and comprises the said workpiece conveyance apparatus 5 with the said fabric conveyance mechanism 5. In other words, the original fabric clamped by the movable clamper 52 is placed on the support plate 69 to be conveyed onto the air table 19.

In addition, 70 is a support member spreading along the original fabric conveyance direction β, and the original fabric is conveyed on the support member 70. In addition, a pair of limit switches (not shown) for detecting the maximum forward position and the maximum retracted position of the movable clamper 52 are attached at appropriate positions on the support frame 50 side.

Next, the operation of the apparatus will be described.

That is, according to the hydraulic cylinders 54, 61, 67 installed in the hydraulic cylinders and the fabric conveyance mechanism 5 disposed in the hydraulic foundation body 1, and according to a predetermined program sequence, Sequenc e. Controlled operation of the hydraulic cutter body unit 1 and the far end conveyance mechanism 5 is as follows.

The disassembled fabrics 3 and 4 are first conveyed to the hydraulic cutter main body 1 side by the hydraulic cylinder 67 while being clamped to the movable clamper 52. At this point, the fixed clamper 51 pushes the clamp rod 55 upward and releases the clamp. Next, when the movable clamper 52 advances to the maximum forward position, the limit switch is operated to stop the operation of the hydraulic cylinder 67 and at the same time, the fixed clamper 51 clamps the distal ends 3 and 4. Following the moving operation, the hydraulic cylinder in the hydraulic cutting machine main body 1 is operated, and the pressurized head 8 is lowered and the fabrics 3 and 4 conveyed onto the punching plate 11 are punched out by the Tomson blade blade 25. do.

When the punching of the distal end is completed, the pressure head 8 is raised, and at the same time, the movable clamper 52 is driven by the hydraulic cylinder 67 to retreat to the maximum retreat position where the limit switch operates. In the meantime, the movable clamper 51 is in the state of releasing the clamp, but the fixed clamper 51 is in the state of clamping the distal end. That is, the original fabrics 3 and 4 are not retracted by the retraction operation of the movable clamper 52. In the following, the same procedure is repeated, and the conveyance and punching of the original fabric are performed continuously.

However, in the present invention, the workpiece cutting device is constituted by the air table 19 of the original fabric conveyance mechanism 5, and the original fabrics 3 and 4 conveyed by the original fabric conveyance mechanism 5 are placed on the air table 19. As the fabrics 3 and 4 are passed through the air table 19 by the compressed air that is injected from the plurality of air nozzles installed on the air table 19 as they are passed through to the other plate 11 through the air. Because the force to push upwards or to push up acts, the apparent weight of the fabrics 3 and 4 is substantially reduced, resulting in friction between the fabrics 3 and 4 and the air table 19 and the springboard 12. Since the resistance is reduced, it can be conveyed with less conveying force than when the air table 19 is not installed, and the fabric is not folded or overlapped even during conveying, and it is caused by scratches or the like on the rudder plate 11. Not affected It can be conveyed on the punching board 11 smoothly, without making it smooth.

In addition, the air nozzles installed on the air table 19 are not provided with a jet port for spraying only upwards, but the two inclined directions and the fabric conveying directions orthogonal to the original conveyance direction β using the three-way air nozzles 18. The fabrics 3 and 4 pushed up the air table 19 receive the force directed toward the punching part from the compressed air, because the compressed air is blown upward and obliquely in accordance with Β. Since the conveyance force of the original fabric conveyance mechanism 5 is supplemented by air, the original fabrics 3 and 4 can be conveyed smoothly onto the carbon plate 11.

In addition, the air nozzle 18 is not necessarily limited to the embodiment having the injection port in three directions, for example, a slit-shaped injection port installed in a semicircular arc shape may be directed in the original conveyance direction β. .

In addition, the present invention is to convey a plurality of fabrics (3 and 4) of the workpiece to be clamped by the clamp mechanism, so that there is no deviation between the fabrics, especially in the case of conveying a plurality of fabrics overlapped. good. In addition, the fabrics 3 and 4 conveyed by the movable clamper 52 are punched in the state of being securely clamped by the fixing clampers 51 installed just in front of the cutting machine main body 1, so that the fabrics 3 and 4 4) Not only does this deviate, but also the punching work can be ensured.

In this embodiment, a rib-like support plate 69 is attached to the clamping base 60 of the movable clamper 52 so that the fabrics 3 and 4 are conveyed up to the air table 19 while the fabrics 3 and 4 are placed on the support plate 69. In particular, even when conveying flexible textile products such as forge, there is no fear of being folded or piled up during the conveyance.

Claims (1)

A fixed clamper 51 for clamping the workpiece to be fixed at the front position of the cutting base body 1 and the front of the fixed clamper are installed to be reciprocated in the direction of the fixed clamper to move forward with the clamped workpiece. In addition, it is installed between the moving clamper 52 retreating with the clamp released, the hydraulic cylinder 67 reciprocating the moving clamper, and the fixed clamper 51 and the workpiece cutting part in the cutting body 1. In the conveyance of the workpiece by the movable clamper 52, the air table 19 is provided with a plurality of air nozzles 18 uniformly arranged on the upper surface of the table so as to push the workpiece upwards. The material to be conveyed in the hydraulic cutting machine characterized in that the device.