JPH0735705Y2 - Band saw - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a band saw machine, and more specifically, a work holding device for holding a work when cutting a work of a short material. Regarding the band saw machine.

(Prior Art) Conventionally, in a band saw machine, as shown in FIG. 5, guide brackets 103 having inserts for correcting the inclination of the band saw blade 101 vertically are arranged on the left and right sides of the band saw blade 101. The work W is held by the main body vise 105 and the movable front vise 107 or the face as a reference, and the cutting work is performed.

(Problems to be solved by the invention) By the way, in the conventional band saw machine described above, the L dimension (the dimension from the center of the saw blade 101 to the end of the front vise 107) shown in FIG. 5 is usually about 10 mm. It is said that. Therefore, when a product or an end material of 10 mm or less is cut, there is a problem that the work W is dragged by the band saw blade 101 near the end of cutting and the saw blade is chipped.

In addition, since tooth chips occur, it is not possible to operate automatically, and when the work carry-in device is attached, the cut scraps are caught on the work carry-out side and the scraps cannot be processed.
In order to prevent chipping of the teeth of the band saw blade, the product to be cut or the end material must be taken longer than necessary, which causes a problem of waste of material.

The object of the present invention is to improve the above-mentioned problems by holding a product or an end material by a work holding device to prevent the saw blade from being chipped, enabling automatic operation, and further, when a material carrying-in device is attached. An object of the present invention is to provide a band saw machine capable of smoothly processing scraps.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention is a band saw machine provided with a guide bracket having an insert in a lower portion for guiding a band saw blade, and holds a work. A band-saw machine is constructed by providing a work holding device, which makes a work receiving plate provided between a main body vise and a front vise, freely movable by an ammunition machine, on the guide bracket.

(Operation) By adopting the band saw machine of the present invention, since the product or the end material is held by the work holding device provided on the guide bracket, even if the end material is extremely short at the time of cutting, the end material is not pulled by the band saw blade. Never be As a result, the tooth of the band saw blade is not chipped, automatic operation is possible, and the scrap material is smoothly processed during material transportation.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 4, a main body vise 5 and a front vise 7 are arranged at right and left sides with respect to the center line 3 of the band saw blade 1 of the band saw machine. A guide bracket 9 for guiding the band saw blade 1 is provided between the main body vise 5 and the front vise 7, and a work holding device 11 is attached to the guide bracket 9. It should be noted that the main body vise 5 serves as a reference for the work W and its position is fixed, and the front vise 7 is movable. A plurality of rollers 15 are arranged on the base 13 of the band saw machine, and the work W moves on the rollers 15 from right to left as indicated by the arrow in the figure. Further, below the base 13, a chip conveyor 17 for processing chips is provided.

With the above configuration, the work W is held between the main body vise 5 and the front vise 7, and the band saw blade 1 is driven while being lowered to cut and lower the work W to a desired position.

The work holding device 11 will be described in more detail.

With reference to FIGS. 1 and 2, a guide bracket 9 for guiding the band saw blade 1 hung vertically from the body of the band saw machine, though not shown at a proper interval on the left and right sides of the band saw blade 1.
Is provided. An insert made of, for example, a super hard material, is provided below the guide bracket 9 to vertically correct the inclination of the saw blade 1.
19 is provided.

A main body vise 5 and a front vise 7 are provided at positions orthogonal to the center line 3 of the band saw blade 1, and the main body vise 5 and the front vise 7 have a fixed side main body vise 5A and a fixed side front vise 7A, respectively. , The movable-side main body vise 5B and the movable-side front vise 7B, which follow the size of the work W, constitute one set.

A work holding device 11 is provided between the fixed-side main body vise 5A and the fixed-side front vise 7A, and the work holding device 11 has a slit which abuts on the work W and through which the band saw blade 1 passes.
A work receiving plate 23 having a lower part 21 is provided on the guide bracket 9 by a plurality of guide rods 25 so as to be movable forward and backward. A stopper plate 27 is locked at the rear end of the guide rod 25 (on the right side in FIG. 1), and a bullet 29 (coil spring or the like) is guided between the work receiving plate 23 and the guide bracket 9. It is wound around the rod 25 and is always a work support plate.
23 is urged forward (work side).

With the above configuration, referring to FIG. 3 for the operation thereof, the band saw blade 1 is in the standby position, which is the upper limit shown in A of FIG. At this time, the work holding plate of the work holding device 11
23 is at the limit of advance. That is, the stopper plate 27 provided on the guide rod 25 contacts the guide bracket 9, and the work receiving plate 23 slightly projects from the reference plane indicated by the line XX. When the operation of cutting the work W held by the main body vise 5 and the front vise 7 from the above state is lowered and the work W is brought into contact with the work receiving plate 23, the ammunition machine 29 is slightly compressed. .

Thus, even if a narrow product or a scrap material is cut, since the work W is supported by the work receiving plate 23, it is possible to prevent tooth breakage without being caught by the band saw blade 1. As a result, automatic operation is possible, and the scrap material can be smoothly processed by the material carry-in device without any trouble during scrap processing, and the scrap material to be cut can be significantly narrowed compared to the conventional one. In some cases, less material is wasted and more products can be obtained from the same material.

The present invention is not limited to the above-described embodiment, but can be implemented in other modes by making appropriate changes. For example, the band saw machine can be a hinge type or a horizontal descent type. The work holding device can be mounted. Further, although a bullet was adopted as the work holding device in the present embodiment, it may be configured with a slight gap maintained without using a bullet, and the guide bracket or the insert holder itself maintains the spring property or is fixed. It goes without saying that a configuration that maintains the gap is also possible.

[Effects of the Invention] As will be understood from the above description of the embodiments, according to the present invention, a band saw machine is provided with a guide bracket having an insert at the lower part for guiding the band saw blade, and the work is held by the guide bracket. A device is provided, and a work receiving plate of the work holding device holds a narrow product or end material.
Thus, the work is not dragged by the band saw blade during cutting, tooth breakage of the band saw blade is prevented, the reliability of automatic cutting is improved, and automatic operation becomes possible. Further, it is possible to process the scrap material when the material carrying-in device is attached, and further, by reducing the width of the scrap material to be cut, it is possible to eliminate waste of the material.

[Brief description of drawings]

1 and 2 show the main part of the present invention, FIG. 1 is a sectional view taken along the line I--I in FIG. 4, FIG. 2 is a plan view in FIG. 1, and FIG. Device operation explanation diagram,
FIG. 4 is a side view of a band saw machine according to an embodiment of the present invention, and FIG. 5 is an explanatory plan view showing the arrangement of a conventional band saw machine. 1 …… Band saw blade, 5 …… Main body vise, 7 …… Front vise, 9
...... Guide bracket, 11 …… Work holding device, 19 ……
Insert, 23 …… Work support plate, 29 …… Ammunition

Claims (1)

[Scope of utility model registration request] 1. A band saw machine provided with a guide bracket having an insert at a lower part for guiding a band saw blade, wherein a work receiving plate provided between a main body vise for holding a work and a front vise is movable forward and backward by an ammunition machine. A band saw machine characterized in that a work holding device is provided on the guide bracket.