JPH0160373B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a method for feeding a material to be cut, such as a long round steel, pipe material, or shape material, to a cutting machine at a fixed length. The present invention relates to a device for transferring a predetermined cutting length at a time.

(Prior art and its problems) Conventionally, in this type of device, a cart is provided that moves between the rear of the cutting machine and the cutting machine in order to set the transfer length of the material to be cut, that is, the cutting length. At the same time, a cutting length setting mechanism consisting of a screw shaft is installed in the front of this cutting machine, and the material to be cut is clamped and fixed by a clamping means equipped on the cart and transferred forward, while the tip of the material to be cut is moved forward. The cutting length was set by the distance between the abutting member and the cutting position by making the abutting member movable together with the screw shaft. For example, the cutting length setting mechanism is located at the front of the cutting machine, which requires extra space, which not only increases the size of the entire device, but also requires separate screw shafts for each cutting length when there are multiple cutting lengths. There was a problem in that it took time and effort to change the cutting length because the scale plate had to be rotated while looking at it.

In view of the above-mentioned problems, the present invention is designed to make the device as compact as possible so as not to take up extra space, and also to make it easy to set each cutting length when there are multiple types of cutting lengths. The purpose is to

(Technical Means for Solving the Problems) A sizing material feeding device of the present invention that can achieve the above object is a device that feeds a material to be cut to a sizing machine to a cutting machine, and A fixed base is provided behind the cutting machine, and a guide frame extending parallel to the feeding direction of the material to be cut is interposed between the fixed base and the cutting machine, and this guide frame is interlocked with a drive mechanism consisting of a hydraulic cylinder. The cart is movably supported, and the cart is equipped with a material feeding vise mechanism capable of holding and releasing the material to be cut, and short cylindrical bumps are provided at the cutting machine side end and the fixed base side end of the cart, respectively. A short cylindrical stopper piece for regulating the feed end position of the material to be cut is provided at the end of the cart of the cutting machine at a position coaxially opposite to the abutment piece on the cutting machine side. At the end of the cart, a plurality of stopper pieces for regulating the feed start position of the cut material are provided in the front circumferential direction, each protruding in the feed direction of the cut material and having a short cylindrical shape with different protrusion lengths. A disc body formed by protruding at intervals,
It is rotatably mounted on a shaft via a rotary operation mechanism, and configured such that the fixed base side abutting piece coaxially faces a required stopper piece for regulating the feed start position at a required rotational position of the disc body. It is characterized by:

(Example) Next, an example of the present invention will be described based on the drawings.

FIG. 1 is a plan view showing the entire device for feeding a cut material B to a cutting machine A at a fixed size.
and a vise device 3 installed on the top side of the machine stand 1. A fixed base 4 is provided at the rear of the cutting machine A, and between this fixed base 4 and the machine stand 1 of the cutting machine A, a pair of guide frames 5, 5 are provided which extend parallel to the feeding direction of the material to be cut B. is interposed. A truck 6 is movably supported by these guide frames 5, 5, and this truck 6 is supported by the guide frames 5, 5.
The cutting machine A is connected to a piston rod 7a of a hydraulic cylinder 7, which serves as a drive mechanism, and is disposed parallel to the outside of the cutting machine. I'm starting to do that. Further, a material feeding vice mechanism 8 is provided on the cart 6 and is capable of holding and releasing the material B to be cut to be transported.

Fig. 2 is a plan view similar to Fig. 1, but shows a state in which the material feeding vise mechanism 8 and the vise device 3 on the cutting machine A side are removed from Fig. 1, and the necessary parts are cut away. As is clear from FIG. 2, short cylindrical impact pieces 9 and 10 extending parallel to the guide frame 5 are attached to the cutting machine side end and the fixed base side end of the cart 6, respectively. On the other hand, on the machine base 1 of the cutting machine A, a stopper piece 11 made of a bolt is attached at a position coaxially opposite to the cutting machine side abutting piece 9, and a stopper piece 11 for regulating the end position of the feed of the material to be cut is attached. A disc body 12 is arranged at the end of the cart side so as to be rotatable on a virtual plane perpendicular to the feeding direction of the material to be cut B.
For example, three stopper pieces 13A, 13B, and 13C for regulating the feed start position of the material to be cut are arranged on the front surface of the cutter 2 at regular intervals (120° intervals) in the circumferential direction (see Fig. 3). Stopper pieces 13A, 13B,
13C each has a short prismatic shape, is perpendicular to the front surface of the disk body and protrudes integrally with it, and
They have different protrusion lengths depending on the required cutting length of the material to be cut. This disc body 1
2 is fixed to the tip of a rotary support shaft 14 which is disposed parallel to the guide frame 5 and rotatably supported by the fixed base 4.
The stopper pieces 13A, 13B, 13C rotate at a predetermined rotation angle (every 120°).
are arranged to face the abutting piece 10 on the same axis in sequence. The rotation operation of the disc body 12 is performed by a rotation operation mechanism 15 provided on the fixed base 4.

As shown in FIGS. 1, 2, and 4, the rotation operation mechanism 15 includes the rotation support shaft 14, and a hydraulic cylinder disposed at one end of the fixed base 4. 16 piston rod 17,
The piston rod 17 is slidably supported by protruding into the fixed base 4 perpendicularly to the rotational support shaft 14, and a rack portion 18 formed on one side of the piston rod 17 is attached to a required intermediate portion of the rotational support shaft 14. The piston rod 17 is meshed with the formed pinion portion 19, and an actuating rod 20 with a smaller diameter is coaxially connected to the tip of the piston rod 17 and protrudes from the opposite side of the cylinder 16 on the fixed base 4.
0, the stopper pieces 13A, 1 on the disc body 12
Engagement protrusions 21 corresponding to 3B and 13C, respectively
A, 21B, and 21C are disposed, and a limit switch 22 that operates by engaging with these engaging protrusions 21A, 21B, and 21C, respectively, on the sides thereof.
A, 22B, 22C are installed, and furthermore, these limit switches 22A, 22B, 22C are connected to a control device (not shown), and this control device is
A solenoid valve that operates the hydraulic cylinder 16 (not shown)
and then hydraulic piston rod 1
7 rotates the rotary support shaft 14 and the disk body 12 integrated therewith via the rack part 18 and pinion part 19, and also engages any desired engagement based on a command from the control device. By engaging the protrusion (for example, 21A) with the corresponding limit switch 22A, the rotation support shaft 14
The disc body 12 is stopped at a position where the stopper piece 13 coaxially faces the abutment piece 10 via the stopper piece 13.

Further, as shown in FIGS. 1 and 5, the material feeding vice mechanism 8 installed on the truck 6 includes a fixed clamp member 23 fixedly provided at one end of the truck 6, and a fixed clamp member 23 fixedly provided on one end of the truck 6. The movable clamp member 25 is disposed opposite the member 23 and is driven by a drive means 24 to move forward and backward relative to the fixed clamp member 23. The drive means 24 includes a hydraulic cylinder 26 fixed on the truck 6, and a movable clamp member 25 is connected to the tip of a piston rod 27 of the hydraulic cylinder 26 via a mounting member 28. As is clear from FIG. 1, a guide rod 29 is provided on the side of the hydraulic cylinder 26 and extends parallel to the piston rod 27 of the hydraulic cylinder 26.
The guide block 30 is slidably inserted into a guide hole 30a of a guide block 30 which is integrally formed with the main body portion of the guide block 6. Further, a coil spring 31 is inserted into the hydraulic cylinder 26 to constantly bias the piston rod 27 in the clamp opening direction, and the guide rod 29
A guide rod 29 is located between the guide block 30 and the guide block 30.
A coil spring 32 is provided which similarly biases the clamp in the direction of opening the clamp. When clamping (clamping) the material to be cut B, the piston rod 27 is pushed by the pressure oil supplied to the head side of the hydraulic cylinder 26 against the urging force of the coil springs 31 and 32. As a result, the movable clamp member 25 moves forward and clamps and fixes the material to be cut B between it and the fixed clamp member 23.

Furthermore, when attaching the disk body 12, a circular mounting base 34 is fitted into a circular recess 33 formed on the end surface of the fixed base 4 facing the trolley 6, as shown in FIG. The rotary support shaft 14 is rotatably inserted into the central hole 34a of the mounting base 34, and a circular support plate 35 is secured to the tip of the rotary support shaft 14 protruding from the hole 34a with a washer 36. At the same time, the support plate 35 is rotatable with respect to the mounting base 34 and the ring-shaped member 37 attached thereto, and the disc body 12 is fixed onto the support plate 35. In FIG. 2, numeral 38 indicates a thrust bearing, and numeral 39 indicates a coil spring for shock absorption.

The vise device 3 in the cutting machine A is composed of a fixed vise member 3a and a movable vise member 3b that is driven to move forward and backward with respect to the fixed vise member 3a by an appropriate driving means, and is configured to control the cutting position of the workpiece B during cutting. It is designed to clamp and fix the vicinity.

Next, the operation of the sizing material feeding device having the above-described configuration will be explained.

First, the disk body 12 is rotated by the rotation operation mechanism 15, and the three stopper pieces 13A, 13 for regulating the feed start position of the material to be cut are placed on the disk body 12.
A desired one of B and 13C is set at a position coaxially facing the abutment piece 10 of the truck 6.
In addition, these stopper pieces 13A, 13B, 13C
has a protrusion length predetermined according to the three types of cutting lengths for the workpiece B, and the stopper piece 13A is used to feed the workpiece with the shortest cutting length among the three types of cutting lengths. The stopper piece 13C is for regulating the starting position, and the stopper piece 13C is for the longest cutting length, and the stopper piece 13B is for the intermediate cutting length. After setting the feed start position of the material to be cut, the truck 6 is moved back toward the fixed base 4 by the contraction of the piston rod 7a of the hydraulic cylinder 7, which is a drive mechanism, and the impact piece 10 on the truck side is moved back. A stopper piece (for example, 13A) for regulating the feed start position of the cut material on the fixed base side facing coaxially with this is made to hit, thereby stopping the cart 6 at the feed start position. At this stop position, the material feeding vice mechanism 8 is operated to clamp a required portion of the material to be cut B supplied onto the cart 6. Then, when the piston rod 7a of the hydraulic cylinder 7 is extended to advance the truck 6, the abutment piece 9 at the front end of the truck 6 is moved to the stopper piece 1 for regulating the end position of the feed of the material to be cut on the cutting machine A side.
1, the cutting machine stops, and at this stop position, the cutting machine side vise device 3 is activated, and the cutting machine A
The portion of the workpiece B fed to the side in front of the cutting position is clamped and fixed, and the cutter 2 cuts the tip of the workpiece B. Thereafter, the piston rod 7a of the hydraulic cylinder 7 is contracted to move the cart 6 back to the starting position for feeding the cut material, while the workpiece B is still fixed on the cutting machine A side by the vise device 3, and then the vice device 3 to open. Thereafter, by repeating the above-mentioned series of operations, the workpiece B is cut to a certain length (stopper piece 13
A is transferred (indicated by L _A in FIG. 2) and cut to this length.

When changing the cutting length of the material to be cut B to another cutting length, the disc body 12 is again rotated by the rotation operation mechanism 15 to obtain a cut length corresponding to the required cutting length. A stopper piece (for example, 13B or 13C) for regulating the cutting material feed start position may be set at a position coaxially facing the abutment piece 13.

In the above-mentioned sizing material feeding device, the stopper piece 11 for regulating the end position of the material to be cut is made of a bolt, and by rotating this as appropriate, its protruding length can be adjusted to expand or contract. The feeding length of B, that is, the cutting length can be adjusted as appropriate. Further, although not shown in the drawings, detection means such as a limit switch are provided at appropriate locations for checking whether the cart 6 is at the feed start position of the material to be cut or the feed end position.

(Effects of the Invention) According to the present invention and the sizing material feeding device, since the entire device is concentrated only on the rear side of the cutting machine, a compact structure can be achieved without taking up extra space. Furthermore, when there are a plurality of cutting lengths, the cutting length can be changed very easily and quickly by simply rotating the disk body as appropriate.

Further, in the present invention, a short cylindrical abutting piece is provided at an end on the cutting machine side and a fixed base side end of the cart, and the cutting machine side abutting piece is coaxial with the end on the cart side of the cutting machine. Short cylindrical stopper pieces for regulating the feed end position of the material to be cut are provided at opposing positions above, and stopper pieces each protruding in the feeding direction of the material to be cut and each having a protruding length are provided at the end of the fixed base on the cart side. A disc body consisting of a plurality of stopper pieces for regulating the feed start position of the material to be cut, which have different short column shapes, are provided protruding from each other at intervals in the circumferential direction of the front surface, and is rotatably mounted via a rotary operation mechanism. Then, at a required rotational position of the disc body, the fixed base-side abutment piece coaxially faces a required stopper piece for regulating the feed start position, and the abutment piece on the truck side is brought into contact with any one of the feed start position regulating stopper pieces facing coaxially with this, thereby stopping the operation of the hydraulic cylinder serving as the trolley drive mechanism and regulating the feed start position of the material to be cut, and The abutting piece on the cart side is brought into contact with a stopper piece for regulating the end-of-feeding position coaxially opposed to the abutting piece, thereby stopping the operation of the hydraulic cylinder and regulating the end-of-feeding position of the material to be cut. Therefore, when the impact piece on the trolley side hits the stopper piece for regulating the feed start position or the stopper piece for regulating the feed end position, even if a considerable impact load is applied between these stopper pieces and the impact piece. There is no fear that the stopper piece and the abutment piece will be damaged or deformed by buckling due to the impact load, and therefore a sizing material feeding device with good accuracy can be provided.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a partial cross-sectional plan view of the entire sizing material feeding device, and FIG. 2 is a view similar to FIG. 1 with the material feeding vice mechanism removed. 3 is a sectional view taken along the arrow in FIG. 2, FIG. 4 is a sectional view taken along the line -- in FIG. 2, and FIG. 5 is a sectional view taken along the line -- in FIG. A... Cutting machine, B... Material to be cut, 4... Fixed base, 5... Guide frame, 6... Dolly, 7...
... Hydraulic cylinder (drive mechanism), 8 ... Material feeding mechanism,
9, 10...Abutting piece, 11...Stopper piece for regulating the end position of feeding of the material to be cut, 12...Disc body, 13
A, 13B, 13C...stopper piece for regulating the feed start position of the material to be cut, 15...rotation operation mechanism.

Claims (1)

[Claims] 1. A device for feeding a material to be cut to a fixed size to a cutting machine, which includes a fixed base provided at the rear of the cutting machine, and a device extending parallel to the feeding direction of the material to be cut between the fixed base and the cutting machine. A guide frame is interposed, and this guide frame movably supports a cart which is interlocked and connected to a drive mechanism consisting of a hydraulic cylinder, and this cart is equipped with a material feeding vise mechanism that can grip and release the material to be cut. , a short cylindrical abutting piece is provided at an end on the cutting machine side and an end on the fixed base side of the cart, and the cutting machine side abutting piece is coaxially opposed to the end on the cart side of the cutting machine. A short cylindrical stopper piece for regulating the end position of feeding the material to be cut is provided at the position, and a short cylindrical stopper piece is provided at the end of the fixed base on the cart side, each projecting in the feeding direction of the material to be cut and having different protruding lengths. A disc body consisting of a plurality of stopper pieces for regulating the feed start position of the material to be cut protruding at intervals in the circumferential direction of the front surface is rotatably mounted via a rotary operation mechanism. Fixed size feed in a cutting machine, characterized in that the fixed base side abutment piece coaxially faces a required stopper piece for regulating a feed start position at a required rotational position of the disc body. material equipment.