JPH04128122U - Guide device for band saw, pipe material cutting machine - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a guide device for a band saw, a pipe material cutting machine. It is an object of the present invention to provide a device that uses a guide device to prevent sideways swinging and diagonal cutting. [Structure] A cutting pipe clamp device 6 having a first V groove 4 for supporting a large diameter pipe in the front-rear direction and a second V groove 5 for supporting a small diameter pipe is provided at the front part of the base plate 2. A movable frame 7 that can be raised and lowered is supported by a shaft 7a, and the frame 7
A notch 8 is formed in the front and back direction corresponding to both the V grooves 4 and 5, and a part of the band saw 11 hooked on the guide pulleys 9 and 10 built into the front and back of the notch 8 is exposed in the notch 8. and run it. Reference numeral 12 denotes a saw blade guide whose other end is bent into an arc shape and whose other end protrudes above the band saw traveling portion of the cutout 8. One end of the saw blade guide 12 is connected to the cutout 8 of the movable frame 7. A steady guide 13 is provided which is pivotally supported so as to project laterally from the upper edge and can be freely removed from the back of the band saw 11 running in the notch 8 to sandwich the vicinity of the saw blade.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a guide device for a band saw, a pipe material cutting machine, in which the front and rear width of the movable frame is A band saw that cuts exposed pipe material from a large cutout swings sideways at the beginning of the cut. To provide a device that prevents diagonal cutting.

0002

[Conventional technology]

Conventionally, pipe material cutting machines cut pipe materials by running a band saw, and a movable flexible The width of the notches provided at the front and rear of the arm is large because the clamping device attached to the base plate has a large diameter. This is a case where a first V groove for supporting a pipe and a second V groove for supporting a small diameter pipe are provided. This is unavoidable, but due to this, the van that runs with the above-mentioned cutout exposed Since there is no support for the band saw, the band saw does not cut into the pipe material at the beginning of cutting the pipe. While driving, it swings left and right and bites diagonally, causing the chip to cut diagonally. There is a point.

0003

[Problem that the idea aims to solve]

In view of the above, the present invention is suitable for band saw tube material because the missing parts are large in the front and back as described above. The solution is to improve the instability of the biting by using a structure that prevents it from swaying. This is the problem to be solved and the purpose of the invention.

0004

[Means to solve the problem]

The guide device of the pipe material cutting machine band saw of the present invention supports a large diameter pipe at the front part of the base plate 2. A cutting pipe clamping device having a first V groove 4 for supporting a small diameter pipe and a second V groove 5 for supporting a small diameter pipe at the front and rear. A movable frame 7 which can be raised and lowered and which is pivoted on the rear part of the base plate 2 has both V grooves. 4 and 5 were formed and hung on the guide pulleys 9 and 10 of the frame 7. In the pipe material cutting machine 1 in which a part of the band saw 11 is exposed and travels, the frame 7 One end of the saw blade guide 12 is pivotally supported on the saw blade guide 12, and the band saw 1 is mounted on the other end of the saw blade guide 12. 1 is characterized by being provided with a steady guide 13 that can be freely removed from the back. Therefore, it meets the above-mentioned purpose and can accurately control run-out during the initial cutting operation of the band saw. It is preventable.

[0005]

【Example】

The attached drawings show one embodiment of the present invention, and Figure 1 shows the side of a pipe material cutting machine to which the present invention is applied. Figure 2 is an enlarged front view of the main parts, Figure 3 is a side view illustrating cutting of a large diameter pipe, and Figure 4 is a small FIG. 5 is a side view illustrating radial pipe cutting, and FIG. 5 is a perspective view of the saw blade guide.

[0006] Figure 1 shows a pipe material cutting machine 1 to which the present invention is applied, which includes a base plate 2, a movable frame 7, etc. The base plate 2 is provided with a clamping device 6 for cutting pipes in the front and rear direction at the front part thereof. Kula The pump device 6 has a first V groove 4 that supports a large diameter pipe and a second V groove 5 that supports a small diameter pipe. . A movable frame 7 that can be raised and lowered is supported at the rear of the base plate 2 by a shaft 7a. Movable flap The frame 7 is formed with a notch 8 in the front-rear direction corresponding to both the V-grooves 4 and 5, and the frame 7 is A band saw is hung on guide pulleys 9 and 10 built into the front and back of the cutout 8 of the frame 7. A part of 11 is exposed to the cutout 8 and the vehicle runs. 12 is partially bent into an arc shape to form a notch 8 A saw blade guide with the other end protruding above the running section of the band saw, the saw blade guide 12 One end of the movable frame 7 is connected to a shaft 14 projecting laterally from the upper edge of the notch 8 of the movable frame 7. The other end of the saw blade guide has a notch 8 as shown in FIG. A steady guide 1 that can be freely detached from the back of the band saw 11 and pinches the area near the saw blade. 3 will be provided. The steady guide 13 is connected to the first V-groove 4 in the front part of the clamp device 6. Place it above the center. 15, 15 are attached to both ends of the cutout 8 so that the band saw 11 can be run freely from above. It is a sandwiched anti-shake prevention and cleaning piece.

[0007] In order to cut a large diameter tube a with the tube cutting machine of this embodiment, the tube a is cut into the first V groove. 4 as shown in Figure 3, fix it with a chain, etc., and move the movable frame 7 down to remove the cutout. The blade of the band saw 11 running exposed is pressed into contact with the blade 8. Normally, the missing part 8 is large. As shown by the chain line in Figure 2, it swings left and right and bites diagonally, resulting in a diagonal cut. In this embodiment, the band saw 11 is lifted up by the steady guide 13 on the top surface of the large-diameter pipe material a. Since it is held in place by being sandwiched from both sides, it does not bite diagonally and prevents it from biting in and out. The steady stop guide 13 cannot enter the cut groove formed by the band saw 11. It remains on the top surface of the large-diameter pipe material a, but the band saw 11 enters the large-diameter pipe material a. I'll guide you until you get there.

[0008] Place the small diameter pipe b on the second V groove 5 as shown in Fig. 4, fix it with a chain, etc., and make it movable. The frame 7 is laid down and cut. At this time, the steady guide 13 is on the first V groove 4 side. Push and guide the band saw using its own weight from the beginning to the end.

[0009]

[Effect of the idea]

In the present invention, the cutout 8 of the movable frame 7 is connected to the first V groove 4 and the second V groove 5 in the clamp device 6. It is suitable for large-sized pipe material cutting machines such as those equipped with saw blade guides on the movable frame 7. One end of the saw blade guide 12 is pivotally supported, and the saw blade guide 12 runs with the cutout 8 exposed at the other end. A configuration with a steady guide 13 that holds the band saw 11 freely and detachably from the back is possible. The moving frame 7 can compensate for the unfavorable cutting conditions of the large notch 8, making the pipe material cutting machine This has the effect of promoting upsizing and effectively preventing diagonal cuts, which are the most disadvantageous for cutting. be.

[Brief explanation of drawings] The attached drawings show one embodiment of the invention.

[Figure 1] Side view of a pipe material cutting machine to which the present invention is applied

[Figure 2] Enlarged front view of main parts

[Figure 3] Side view illustrating large diameter pipe cutting

[Figure 4] Side view illustrating small diameter pipe cutting

[Figure 5] Perspective view of saw blade guide

[Explanation of symbols]

a Large diameter pipe material, b Small diameter pipe material, 1 Pipe material cutting machine, 2 Base plate, 4 1st V groove, 5 2nd V groove, 6
Clamp device, 7 Movable frame, 7a Axis, 8
Missing part, 9, 10 Guide pulley, 11 Band saw,
12 Saw blade guide, 13 Steady stop guide, 14 Axis,
15 Anti-shake and cleaning piece,

Claims (1)

[Scope of utility model registration request] Claim 1: A first V supporting a large diameter pipe at the front of the base plate 2.
A cutting tube clamping device 6 having a groove 4 and a second V groove 5 for supporting a small diameter tube at the front and back is provided, and a movable frame 7 that can be raised and lowered is pivotally supported on the rear part of the base plate 2. In a pipe cutting machine 1 in which a corresponding notch 8 is formed and a part of the band saw 11 hooked on the guide pulleys 9 and 10 of the frame 7 is exposed and travels, one end of the saw blade guide 12 is attached to the frame 7. A guide device for a band saw for cutting pipe material, characterized in that a steady guide 13 is provided at the other end of the saw blade guide 12 to sandwich the band saw 11 freely from the back.