JP2552798B2 - Cutting machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine such as a band saw machine or a grindstone cutting machine.

[0002]

2. Description of the Related Art Conventionally, a cutting machine such as a band saw machine generally has a structure as shown in FIGS. That is, base 1
The material support part 3 and the cutting material support part 5 are provided on the upper part, and the cutting part 7 is provided so as to be vertically movable. A large number of supporting rollers 9, 9, ... Are supported by the frame 11 on the material supporting portion 3, and a material feeding vise mechanism 13 is provided so as to be movable in the material feeding direction.

In the material feeding vise mechanism 13, the material feeding movable vise jaw 17 is movable forward and backward by the action of the cylinder mechanism 19 with respect to the material feeding fixed vise jaw 15, and the material W is clamped between the two vise jaws 15, 17. Is.
The material feeding vise mechanism 13 is moved in the material feeding direction by the cylinder mechanism 21 provided in the material supporting portion 3 in the material feeding direction.
By driving the vice bed 23. The movement of the vice bed 23 is performed by the guide shaft 25.
Is guided by

Immediately before the cutting portion 7, a body vice mechanism 27 is provided. The main body vise mechanism 27 is fixed to the base 1 and cannot move in the material feeding direction. In the main body vice mechanism 27, the main body movable vice jaw 31 is movable forward and backward by the cylinder mechanism 33 with respect to the main body fixed vice jaw 29, and the material W is clamped.

The cutting portion 7 is formed by winding the band saw blade 35 around a pair of wheels 39 and 41 in a housing 37. The cutting section 7 is movable up and down, and the material W is cut by the band saw blade 35.

Explaining the cutting operation of the band saw blade having the above structure, the long material W is placed and supported on the material supporting portion 3, and is fed by the material feeding vise mechanism 13 as shown by solid lines in FIGS. 4 and 5. It is clamped in a state where it is located in the section, and is fed forward by the drive of the cylinder mechanism 21. This material feeding length shall be preset by the operator.

When the material W is sent out by the specified size,
The body vice mechanism 27 clamps and fixes the front portion of the material W that has been fed.

Then, the cutting section 7 descends and cuts a predetermined portion of the material W. The cutting material cut out by this cutting is supported by the cutting material supporting portion 5 and is carried out.

Subsequently, the material feeding vise mechanism 13 unclamps the material W and retracts to the last portion, where the material W is clamped again. Then, the main body vice mechanism 27 unclamps the material W on the contrary.

Then, the material feeding vise mechanism 13 drives the cylinder mechanism 21 to again feed the material W forward by the designated size. After the material feeding operation, the main body vice mechanism 27 clamps the material W again, and the material is cut by the action of the cutting unit 7.

In this way, the material W is sent out in a constant size intermittently by the reciprocating movement of the material feeding vise mechanism 13.
The slicing is performed.

[0012]

However, in the case of the conventional cutting machine as described above, the material feeding vise mechanism 13 is used.
Since the main body vise mechanism 27 is provided at the tip of the cutting part 7, even if the material feeding vise mechanism 13 clamps and sends out the rear end of the material W with a minimum clamping margin of ΔH as shown in FIG. There is a distance of H with the band saw blade 35 of
If the material is shorter than the length of H, the material cannot be fed. Therefore, when the designated cutting dimension is L, the maximum remaining material length is (H + L), and the longer the designated cutting length, the longer the remaining material length, resulting in a waste of material.

Further, the feeding action of the material W by the feeding vise mechanism 13 is performed by the reciprocating movement of the feeding vise mechanism 13, and when the feeding is performed for a relatively long time, the feeding and stopping are performed. There was a problem in improving the efficiency of material feeding as it became an intermittent feeding function while repeating (pause).

[0014]

SUMMARY OF THE INVENTION In view of the conventional problems as described above, the present invention provides a body vice mechanism for clamping a material to be cut on one side close to the cutting position. Before and after carrying out the material cut at the cutting position from the cutting position to the other side of the cutting position, a material feeding vise mechanism for feeding the material to the cutting position is provided reciprocally on the side. A partial vice mechanism is provided so as to be reciprocally movable, and reciprocating actuating devices for individually reciprocating the material feeding vice mechanism and the front vice mechanism are respectively provided.

[0015]

In the above structure, after the material is fed from one side of the cutting position to the cutting position by the feeding vise mechanism, the material can be further moved in the same direction by the front vise mechanism. By virtue of the body vice mechanism provided in the vicinity of, the vicinity of the rear end of the material can be clamped, and the material can be clamped in a state in which there is little residual material.

Further, a material feeding vise mechanism and a front part vise mechanism are individually provided on both sides of the cutting position so as to be reciprocally movable, and the material feeding is continuously stopped with almost no movement of the material due to the mutual operation. The feeding vice mechanism performs the feeding action, and when the feeding vice mechanism reaches the vicinity of its stroke end, the front vice mechanism clamps the material and continues the feeding action. , The material feeding vice mechanism is returned to the initial position during the material feeding operation by the front vice mechanism, and when the front vice mechanism reaches the vicinity of its stroke end, the material feeding vice mechanism re-clamps the material and the material feeding operation Even if the material is long, there is a delay during the material feeding operation by repeating the operations of returning the front vise mechanism to the initial position during the material feeding operation of the material feeding vise mechanism. Continuous Okuzai that no feed can be performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 2, a material supporting portion 3, a cutting portion 7, a material feeding vise mechanism 13 provided on a base 1,
The structure of the main body vice mechanism 27 is the same as that of the above-mentioned conventional example, and the parts denoted by the same reference numerals have the same structure and action.

The feature of this embodiment lies in the construction of the cutting material supporting portion 5. That is, in the cutting material supporting portion 5, the cutting material supporting rollers 43, 43, ... Are supported between the frames 45, 45. Further, the cutting material support portion 5 is provided with a front vice mechanism 47 movably in the material feeding direction.
The front vise mechanism 47 includes a fixed vise jaw 49, a movable vise jaw 51 that can advance and retract with respect to the fixed vise jaw 49, and a cylinder mechanism 53 that drives the movable vise jaw 51.

The front vice mechanism 47 is connected to the vice bed 57 by a cylinder mechanism 55 which can be driven in the material feeding direction, and the cylinder mechanism 55 operates to reciprocate in the material feeding direction with respect to the main body vice mechanism 27. Driven.

The cylinder mechanism 55 is the front vise mechanism 4
7 is a reciprocating motion device for reciprocating in the material feeding direction. The cylinder 21 for reciprocating the material feeding vice mechanism 13 can be operated individually and in association with each other. It is a structure that can perform related operations so that the materials can be fed in cooperation.

The movable range of the front vice mechanism 47 is the range shown by the imaginary line and the solid line in FIGS. 1 and 2, and can be moved to a position directly below the band saw blade 35 of the cutting section 7. . Therefore, when the material feeding vise mechanism 13 cannot feed the material W, the remaining small amount of the material W is clamped by the front vise mechanism 47, and the material W is pulled out by a specified size by the action of the cylinder mechanism 55. Subsequently, the rear end portion of the material pulled out by the body vice mechanism 27 is clamped and cut.

By providing the front vise mechanism 47 movably in the material feeding direction on the cutting material support portion 5 as described above, it is impossible when the material W is delivered by the conventional material feeding vise mechanism 13 alone. The non-feedable range of L is eliminated, and the material can be effectively used.

For example, H = 600 mm, product length L = 5.8.
When the length of the material W is 2 m from the standard length of 12 m, the first residual material amount is 12 m -5.8 m = 6.2 m> H The second residual material amount is 6.2-5.8 m = 0. 4m <H Therefore, the second device cannot be clamped and cut by the conventional device and the residual material amount is 6.2 (<H + L). However, according to this embodiment, the residual material amount is 0.4m. It is clear that the materials can be effectively used.

Further, the both cylinder mechanisms 21 and 55 can be operated in association with each other to allow the material feeding vise mechanism 31 and the front part vise mechanism 47 to cooperate with each other. That is, the material feeding vice mechanism 13 performs the material feeding operation, and when the material feeding vice mechanism 13 reaches the vicinity of the stroke end thereof, the front vice mechanism 47 clamps the material to continuously perform the material feeding operation. During the feeding operation by the mechanism 47, the feeding vise mechanism 13 is returned to the initial position, and the front vise mechanism 47
Reaches the vicinity of its stroke end, the material feeding vice mechanism 13 re-clamps the material to perform the material feeding operation,
During the feeding operation of the feeding vice mechanism 13, the front vice mechanism 47
Even if the material is long, by repeating the operation of returning the
Unlike the intermittent feeding operation in which the movement of the material is temporarily stopped, a continuous feeding operation can be performed with almost no movement of the material.

Further, when the material W becomes short and it is difficult to clamp the material W by the main body vice mechanism 27, the front vice mechanism 47 can clamp the material W and cut the rear end of the material W. Is.

[0026]

As will be understood from the above description of the embodiments, the present invention is, in short, the main body vice mechanism 2 for clamping the material W to be cut on one side close to the cutting position.
7, a feeding material vise mechanism 13 that feeds the material W to the cutting position is provided reciprocally on one side of the cutting position, and on the other side of the cutting position, at the cutting position. A front vice mechanism 47 for reciprocating the cut material W from the cutting position is provided so as to be reciprocally movable, and reciprocating operation devices 21, 55 for individually reciprocating the material feeding vice mechanism 13 and the front vice mechanism 47. Are respectively provided.

As is apparent from the above structure, in the present invention, the material W to be cut is provided on one side close to the cutting position.
A body vice mechanism 27 for clamping the material is provided, and the material feeding vice mechanism 1 for feeding the material W is provided on one side.
3 is provided so as to be reciprocally movable. Then, on the other side of the cutting position, a front vise mechanism 47 for carrying out the cut material is provided.
Is reciprocally movable.

Therefore, according to the present invention, when the material W is shortened and cannot be fed by the material feeding vise mechanism 13, the material W is cut out by pulling out and grasping the material W by the front vise mechanism 47. As a result, the residual material can be shortened as a matter of course.

Further, in the present invention, the material W is fed to a desired length longer than the stroke length of each reciprocating operation device 21, 55 for reciprocating the material feeding vice mechanism 13 and the front vice mechanism 47. At this time, the reciprocating operation device 21 of the material feeding vise mechanism 13 and the reciprocating operation device of the front part vise mechanism 47 are operated in association with each other to continuously feed the material W to the desired length without almost stopping the movement thereof. It can be configured to perform a material action.

That is, when the material feeding length of the material W is larger than the stroke lengths of the material feeding vise mechanism 13 and the front part vise mechanism 47, the reciprocating operation device 21 of the material feeding vise mechanism 13 and the front part vise mechanism. The reciprocating operation device 55 of the above-described reciprocating operation device 55 is interlocked with each other to continuously feed the material W without almost stopping the movement of the material W. Therefore, the material feeding operation is repeated intermittently. Unlike the above, it is possible to perform an efficient feeding operation.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front view of the above embodiment.

FIG. 3 is a side view of a conventional example.

FIG. 4 is a plan view of a conventional example.

FIG. 5 is a front view of a conventional example.

[Explanation of symbols]

 7 ... Cutting part 13 ... Material feeding vise mechanism 21 ... Cylinder mechanism 27 ... Main body vise mechanism 35 ... Band saw blade 47 ... Front vise mechanism 55 ... Cylinder mechanism

Claims (1)

(57) [Claims] 1. A body vice mechanism (27) for clamping a material (W) to be cut is provided on one side close to the cutting position, and the material (W) to the cutting position is provided on one side of the cutting position.
A front feeding vise mechanism (13) for reciprocating the material feeding vise mechanism (13) for carrying out the material feeding action, and carrying out the material (W) cut at the cutting position from the cutting position to the other side of the cutting position. (47) is provided so as to be reciprocally movable, and reciprocating actuating devices (21, 55) for individually reciprocating the material feeding vice mechanism (13) and the front vice mechanism (47) are respectively provided. Characteristic cutting machine.