JPS6126466B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention provides quartz, silicon, germanium,
This invention relates to an improvement of a sizing device for a multi-blade machine for cutting hard materials such as jewelry into a large number of thin plates.

Conventionally, as this type of multi-blade saw device, for example, a saw device of the type described in Japanese Patent Publication No. 38-393 has been widely used.

In other words, in the above-mentioned saw device, blades arranged in parallel with a required gap are supported by a reciprocating support frame, and a pedestal supporting the hard material to be cut is placed below the frame so that it can move up and down. A large number of cutting notches are formed in the hard material by lightly pressing the hard material raised by the pedestal against the blade which is arranged and reciprocated via the supporting frame. ing.

In the operation of cutting a hard material into thin plates using the device described above, the cut is made at a depth such that a portion of the hard material remains connected in common, and then The common connection portion is cut and removed to separate it into a large number of thin plates.

When cutting the hard material with a blade, the depth of cut is set by adjusting the lifting process of the pedestal that supports the hard material, but due to wear of the blade, the cutting edge surface Since the opposing distance between the blade and the hard material machining surface applied thereto is not constant, the lifting stroke of the pedestal must be adjusted in accordance with the wear of the blade,
The work is extremely difficult and requires skill.

This invention was made in order to solve the above problem, and in accordance with the wear of the blade,
The purpose of the present invention is to provide a sizing device for a multi-blade machine that can easily and easily set the lifting stroke of a pedestal that supports a hard material, and can ensure a constant amount of cut into the hard material by the blade. It is something.

Hereinafter, the present invention will be explained in detail based on the drawings showing an example of its implementation.

In Fig. 1, reference numeral 1 denotes a machine pedestal that constitutes the saw device, and a pedestal 2 on which a hard material, which is a workpiece, is placed is attached to the machine pedestal side via guide shafts 3, 3. It is installed on a movable base plate 4 that is arranged to be able to rise and fall freely, and in the center of the pedestal 2, a sensing body 5 made of a rod-shaped conductive material is slidably moved in the vertical direction of the pedestal. , and is inserted and arranged in an electrically insulated state, and the lower end of the sensing body protruding downward from the base plate 4 is supported via an adjustment screw 7 of a support frame 6 fixed to the base plate side, and this screw 7 By the rotation operation, the sensing body is moved up and down in its axial direction, and the effective length of the portion of the sensing body that projects upward from the pedestal 2 can be adjusted. Reference numeral 8 denotes a chip receptacle mounted on the machine base 1, and is used to store materials such as chips produced when cutting hard materials and abrasive slurry supplied to the blade during cutting.

The movable base plate 4 is operatively connected to a lifting mechanism (not shown) using an electric motor as a power source, and is moved up and down by this lifting mechanism.
9 is a blade support frame, 10 is a blade, and the support frame 9 is adapted to be reciprocated by a reciprocating mechanism (not shown) operatively connected thereto.

The blade 10 is mounted on a pedestal 2 on which a workpiece is placed.
When the sensing body 5, which is reciprocated in the upper part and protrudes upward from the pedestal 2, comes into contact with the blade 10 made of a conductive material during the operation described later, the sensing body 5 and the blade 10 The circuit 11 containing the lift mechanism is closed, and the signal generated thereby opens the circuit of the electric motor driving the lifting mechanism, so that the movement of the lifting mechanism and the blade support frame is stopped.

Using the sizing device of the multi-blade machine configured as described above, the operation of cutting the hard material described above is performed in the following manner. That is, the workpiece A, which is a hard material, is placed and fixed on the pedestal 2, and in this state, the pedestal 2 is raised and lowered via the lifting mechanism to set the workpiece at a position where the upper surface of the workpiece touches the blade surface of the blade 10. , Next, insert a spacer B with the same thickness as the amount of cutting into the workpiece A between the blade surface of the blade 10 and the top surface of the sensing body 5, and continue until it hits the blade surface of the blade 10. , the adjusting screw 7 of the sensing body 5 is rotated, and then the spacing member B is pulled out, and in this state, the reciprocating movement of the blade support frame 9 is started, and the movable base supporting the pedestal 2 is rotated. When the plate 4 is raised at a low speed, cutting into the workpiece begins.

Therefore, when the movable base plate 4 moves up, the sensing body 5 also moves up, and when the top surface of the sensing body 5 comes into contact with the blade surface of the blade 10 during the lifting stroke, the sensing body 5 and the blade 10 is closed, and the signal emitted thereby opens the circuit of the electric motor in the lifting mechanism of the movable bed plate 4, thereby causing the lifting of the movable bed plate 4, i.e., the workpiece pedestal. 2 is stopped, so the progress of cutting into the workpiece A by the blade 10 is stopped. That is, the workpiece A is cut to a depth set by the spacer B.

Therefore, in the sizing device for a multi-blade machine with the above configuration, the workpiece holder 2 is adjusted depending on the wear of the blade.
The operation for determining the lifting stroke of the blade is a simple operation of inserting the spacing material between the cutting surface of the blade and the sensing body, so the work efficiency can be greatly improved.

As described above, the sizing device for a multi-blade machine according to the present invention supports a reciprocating blade member and a workpiece to be cut by the blade member, and supports the blade member in the direction in which the blade cuts into the workpiece. a workpiece pedestal member movable along the workpiece pedestal member; a drive device for moving the workpiece pedestal member; a sensing member that can be independently moved along the sensing member and that can adjust the distance between the blades and the blade surface by the moving operations;
and a device that stops the movement of the workpiece pedestal member in response to a signal issued when the sensing member, which moves together with the pedestal member, comes into contact with the blade surface of the blade member during the movement stroke of the pedestal member. Setting the amount of cut into the workpiece by the blade does not require any skill and can be done extremely easily.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a sizing device for a multi-blade machine showing an embodiment of the present invention. 1... Machine base section, 2... cradle, 3... guide vertical shaft,
4... Movable base plate, 5... Sensing body, 6... Support frame, 7
... Adjustment screw, 8 ... Chip receiver, 9 ... Blade support frame, 10 ... Blade, 11 ... Electric circuit,
A... Workpiece, B... Spacing material.

Claims (1)

[Claims] 1. A reciprocating blade member, a workpiece holder member that supports a workpiece to be cut by the blade member and is movable along the direction in which the blade cuts into the workpiece. a drive device for moving the workpiece pedestal member; a drive device supported by the pedestal member so as to be able to move therewith; A sensing member whose opposing distance to the blade surface of the blade can be adjusted by a movement operation, and a signal that is emitted when the sensing member that moves together with the pedestal member comes into contact with the blade surface of the blade member during the movement of the pedestal member. A sizing device for a multi-blade machine, comprising a device for stopping movement of an object receiving member. 2. The sensing member is made of a conductive material in the shape of a rod, is inserted into the workpiece pedestal member in an electrically insulating manner, is supported by the pedestal member so as to be movable by rotation of the adjustment screw, and is made of a conductive material. The sizing device for a multi-blade machine according to claim 1, wherein the sizing device for a multi-blade machine is configured so that an electric circuit is formed when the blade comes into contact with the blade.