JPS6021132Y2 - saw cutting machine rotating trough device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary trough device for a rotary hot saw cutter that cuts hot-manufactured pipes and the like into predetermined lengths.

In general, a saw cutter is a device that attaches a saw blade unit with a blade rotated by a blade motor to a frame, rotates the frame, and cuts the material while conveying it in the cutting line direction within the rotation. .

The sawing can be done by keeping the blade and frame constantly rotating and pushing down the saw blade unit with a link mechanism when sawing, or by always staying in a predetermined position and rotating the frame only when cutting. Methods such as moving the blade unit to the cutting position are used.

Next, when the material is sawed, the material is pushed down, so a supporting device is required to move and support the lower part of the material so that the material does not bend.

For this reason, conventionally, as this supporting device, a wheel-shaped rotating trough having a groove on the outer periphery is provided opposite to the frame.

That is, the rotating trough device is installed so that the center of rotation of the frame and the center of rotation of the trough are aligned vertically, the rotation speed of both is the same as the moving speed of the material, and the rotation direction is opposite. It is being

However, in the above-mentioned trough device, the groove of the trough comes into rotational contact with the material other than when sawing the material, which often causes scratches on the surface of the material and deteriorates the quality of the product. there were.

Moreover, a complicated mechanism was required to eliminate such drawbacks.

The present invention was developed to solve this problem, and is a saw that cuts a material placed on a rotating trough at the lowest position by rotating a blade rotated by a blade motor by a circularly moving frame. A rotary trough device for a cutting machine, wherein a stepped portion is provided at the bottom of a groove-shaped circumferential surface of a rotary trough that moves in a circular motion in conjunction with the blade, and the stepped portion of the trough is provided at a fixed interval only during sawing. By supporting the material in rolling contact and otherwise providing a slight gap between the trough and the material, a device is obtained that does not damage the material or the trough.

To explain the embodiment shown in the drawings below, reference numeral 1 denotes a blade, which is driven by a blade motor 2 and constitutes a so-called saw blade unit. and a chain line d in the direction of arrow C by the frame (not shown) to which the saw blade unit is attached.
It is designed to rotate along the trajectory shown in .

Reference numeral 3 denotes a material to be sawed, which is conveyed in the direction of arrow C along the cutting line of the chain line d.

Reference numeral 4 denotes a rotating trough having a wheel-like groove on its periphery, which is fitted onto the rotating shaft 5 and rotates in the opposite direction (direction f) to the frame at the same rotational speed as the frame. ing.

Further, the groove on the circumference of the rotary trough 4 is provided with a stepped portion at a predetermined zero angle portion, and the stepped portion is adapted to come into rolling contact with the lower part of the material 3.

Therefore, when the rotating trough 4 rotates, a slight gap corresponding to the height of the stepped portion is maintained between the other groove portions and the material 3.

Furthermore, a V-shaped saw blade groove i is provided in the central part of the stepped portion in the axial direction to prevent damage to the rotary trough 4 due to overcutting of the material 3 by the blade 1.

Since the present invention has the above-described configuration, when cutting the transported material 3 to a predetermined length, the cutting position is set at the point of contact g of the saw tip b1 of the rotating blade 1 with the material 3. , the frame to which the saw blade unit is attached is set to start in the C direction, and the conveyance speed of the material 3 is made to match the rotating speed of the frame, so the material 3 is moved at a predetermined position. It will be cut at the position.

On the other hand, when the blade 1 starts sawing, the end of the stepped part of the rotating trough 4 contacts the lower part of the material 3, and as the material 3 is sawed, it rolls while supporting the material 3, resulting in smooth sawing. This will bring an end to this.

Also, regarding the overcut of material 3 by blade 1,
Since the saw blade groove i is provided, the rotary trough 3 will not be damaged, and even after sawing the material 3, a gap is maintained between the material 3 and the groove of the rotary trough 4, so the material 3 There is no risk of scratches on the surface.

Furthermore, if the end of the material 3 hangs down before or after sawing the material 3, the end will be supported by the groove of the rotating trough 4, so the rotating trough 4 and the material 3 will not be damaged. The material 3 can be transported smoothly, the structure is simple, there is no need to increase the size of the device, maintenance is easy, and other advantages are great.

[Brief explanation of the drawing]

The drawing shows a schematic front view of a rotary trough device illustrating an embodiment of the invention. 1...Blade, 3...Material, 4...
...Rotating trough, h...Stepped part.

Claims (1)

[Scope of utility model registration request] A rotary trough device for a saw cutter that cuts a material placed on a rotary trough at the lowest position by rotating a blade rotated by a blade motor by a frame that moves circularly, the rotary trough device rotating in conjunction with the blade to A rotary trough device for a saw cutting machine, characterized in that a stepped portion is provided at the bottom of the groove-shaped circumferential surface of a rotary trough that performs movement, and a saw blade groove is provided in the working portion.