JPH0446711A - Cut powder remover for sawing machine - Google Patents

Abstract

PURPOSE:To improve a work efficiency by normally bringing a circular wire brush, for removing cut powder sticking to saw blade of a band saw machine, of a remover, into contact with a roller, and detecting wear conditions of the wire brush by a sensor. CONSTITUTION:When a wire brush 45 is rotated under a condition where the circumferential edge thereof abuts on a abutting roller 65, cut powder sticking to a running saw blade 21 is removed. Even if the diameter of wire brush 45 is reduced gradually, it is maintained in its abutting conditions on the roller 65 since it is forced to abut thereon. The blade 21 is accordingly in a condition to enter by a specified amount relatively in the wire brush 45 normally. When it is detected by a sensor that a guide bolt 39 is positioned at a specified position, it is found that wear of the brush 45 has increased to reduce the diameter of the brush 45.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a method for sawing machines such as band saws and hack saws.
The present invention relates to a chip removal device that removes chips attached to a saw blade.

(Prior Art) Conventionally, a circular wire brush has been used as a chip removal device in a saw machine. After inserting a predetermined amount of the bristles of the wire bran into the saw blade, the wire plan was rotated to remove chips adhering to the saw blade. In addition, in order to make use of the fact that the wire brush has become the minimum diameter for use (the diameter of the wire brush when the wire brush needs to be adjusted due to wear), the diameter of the wire brush can be adjusted using a caliper, etc. was detected directly.

(Problem to be Solved by the Invention) However, as mentioned above, in the conventional chip removal device, the wire brush is subject to severe wear, so when the diameter of the wire brush becomes smaller due to wear,
It was necessary to insert a predetermined amount of the bristles of the wire brush into the saw blade each time, making it difficult to adjust the wire brush. On the other hand, if the wire brush is not properly adjusted and chips are removed, chipping occurs at the cutting edge of the saw blade, shortening the life of the saw blade and making it impossible to perform proper cutting. was there.

Further, since it is determined that the diameter of the wire brush has reached the minimum usable diameter by directly detecting the diameter of the wire brush using a caliper or the like, the work is troublesome.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a chip removal device for a saw machine that can solve the above problems.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the conventional problems as described above, in the present invention, in a saw machine, a saw blade housing provided with a saw blade has a material attached to the saw blade. A brush support member is provided to rotatably support a circular wire brush that removes cut chips, and an abutment member that can come into contact with the circumferential surface of the wire brush is provided near the saw blade, and the brush support member is provided in the vicinity of the saw blade. Provided so as to be movable toward and away from the contact member, and provided so that the bristles of the wire brush enter the saw blade by a predetermined amount when the contact member contacts the peripheral surface of the wire brush, and A biasing means is provided for biasing the wire brush in the direction of contacting the contact member.

Furthermore, in addition to the above-mentioned components, a detector is provided on the brush support member, and it is detected that the detector is located at a predetermined position where the detector is located when the diameter of the wire brush becomes the minimum usable diameter due to wear. It is equipped with a sensor that

(Function) In the above configuration, by rotating the wire brush while the contact member and the wire brush are in contact with each other, chips adhering to the running saw blade are removed. At this time, since the abutting member is in contact with the wire brush, the bristles of the wire brush enter the saw blade by a predetermined amount.

Under the above action, even if the diameter of the wire brush gradually decreases due to wear, the biasing means biases the wire brush in the direction of contacting the contact member, so the wire is always The state of contact between the flange and the contact member is maintained. Therefore, the tip of the wire plan has entered the saw blade by a predetermined amount.

When the sensor detects that the detector is located at a predetermined position, the wear of the wire brush increases and the diameter of the wire brush becomes the minimum usable diameter.

(Example) Hereinafter, an example according to the present invention will be described based on the drawings.

Referring to FIG. 6, a band saw machine 1 as an example of a saw machine is equipped with a box-shaped base 3, and a work table 5 for supporting a workpiece W is provided on this base 3. In addition, a pair of fixing vises 7a and 7b are provided to fix the workpiece W at a predetermined position on the work table 5. In addition,
The fixing vice 7a is immovable, and the fixing vice 7b is movable in the left-right direction (left-right direction in FIG. 6) toward and away from the fixing vice 7a. It is. Further, the work table 5 constitutes a part of the base 3.

The base 3 is provided with a saw blade housing 11 which is vertically swingable via a hinge shaft 9. In order to swing the saw blade housing 11, a lifting cylinder 13 is provided at an appropriate position on the base 3, and a piston rod 15 that can freely protrude upward from the lifting cylinder 13 is attached to the saw blade housing 11. Connect it at the appropriate position. In addition to the above-mentioned structure, as a structure for vertically moving the saw blade housing 1 with respect to the base 3, a guide post is provided upright on the base 3, and the saw blade housing 11 is guided by the guide post. It is also possible to use a configuration in which the parts are moved up and down.

A driving wheel 17 and a driven wheel 19 are rotatably provided in the saw blade housing 11, and an endless saw blade 21 is wound around the driving and driven wheels 17 and 19. Note that the drive wheel] 7 is interlocked and connected to a rotating device (not shown). In addition, a beam member 2 is attached to the saw blade housing 11 in order to hold the saw blade 21 almost perpendicularly to the workpiece W supported on the work table 5.
3 is provided with a pair of saw blade guides 25a, 25b whose positions can be adjusted freely. Note that the saw blade guide 25a is immovable, and the saw blade guide 25b is movable in left and right directions toward and away from the saw blade guide 25a.

With the above configuration, the workpiece W is fixed at a predetermined position on the work table 5 by bringing the pair of fixing vises 7a and 7b closer together. Then, by appropriately operating the rotating device, the driving and driven wheels 17 and 19 are rotated, and the band saw blade 21 is rotated.
At the same time, the saw blade housing 11 is swung downward by operating the lifting cylinder 13 as appropriate. Thereby, the desired cutting process is performed by the saw blade 21 guided perpendicularly to the workpiece W via the pair of saw blade guides 25a and 25b.

In order to remove chips attached to the saw blade 21, the saw blade housing 11 is provided with a chip removal bag W127.

For details of the chip removal bag WL27, refer to FIGS.
It is set as 1 or more. A support plate 33 is provided below the casing 31, and a brush support member 35 is provided on the support plate 33.

The brush support member 35 is provided so as to be movable in the front-rear direction (left-right direction in FIG. 1, right-left direction in FIG. 2, front-to-back direction toward the paper surface in FIG. 3, and up-down direction in FIG. 4). That is, the support plate 33 is provided with a long hole 37 extending in the front-rear direction, and the guide bolts 39 and 41 passing through the long hole 37 connect to the brush support member 35.
It is screwed onto the Further, since the brush support member 35 is provided with a plunger 43 that presses the support plate 33, the brush support member 35 moves in the front and rear directions with a predetermined abrasion force.

A wire brush 45 is rotatably provided on the brush support member 35. More specifically, referring to FIG. 5, the brush support member 35 is provided with a rotating shaft 47 that is integrally provided with the wire brush 45 and rotatable via a plurality of bearings 49. A driven bevel gear 51 is integrally provided. Further, an intermediate shaft 53 is rotatably provided at the upper part of the brush support member 35 via a plurality of bearings 55, and a driving bevel gear 57 meshed with a driven bevel gear 51 is integrally provided in the intermediate shaft 53. It is a provision. The intermediate shaft 49 has a universal joint 6 connected to a rotating shaft 61 of a drive motor 59 provided in the casing 31.
It is connected via 3.

With the above configuration, by appropriately driving the drive motor 59, the rotating shaft 61 rotates 1, and the intermediate shaft 53 rotates via the universal joint 63. therefore,
The rotating shaft 4 is connected via the driving bevel gear 57 and the driven bevel gear 51.
7 rotates, and the wire brush 45 rotates.

A contact roller 65 that can come into contact with the circumferential surface of the wire brush 45 is rotatably provided near the saw blade 21 on the support plate 33, and when the wire brush 45 comes into contact with the contact roller 65, The position of the contact roller 65 is set so that the tip of the wire blan 45 enters the saw blade 21 by a predetermined amount. In order to bias the wire brush 45 in the direction of contacting the contact roller 65, a spring is provided between the bolt 67 attached to the brush support member 35 and the bolt 69 attached to the fixing member 27. 71 is loaded with ammunition.

Note that the wire brush 4 is used instead of the contact roller 65.
There is no problem in providing an abutment plate that can come into contact with the circumferential surface of the brush 5, and a torsion spring can be used between the casing 31 and the brush support member 35 instead of the spring 71.

Further, in order to detect when the wire brush 45 has reached its minimum usable diameter due to wear, a sensor 73 such as a limit switch or a proximity sensor is provided at a predetermined position on the support plate 33.

The sensor 73 detects that the guide bolt 39 is located at a predetermined position where the guide bolt 39 is located when the diameter of the wire brush 45 becomes the minimum usable diameter. Note that it is preferable that the rotation of the drive wheel 17 is controlled to stop when a predetermined detection is made by the sensor 73. In this example, the detector was used via a guide bolt, but the detector was a wire brush 4.
There is no problem as long as it moves integrally with 5.

The operation of this embodiment will be explained based on the above-described configuration.

When the bandsaw machine 1 is operated appropriately to perform a desired cutting process on the workpiece W, and the intermediate contact roller 65 and the wire brush 45 are in contact with their peripheral surfaces, the drive motor 59 By appropriately driving the wire brush 45 and rotating the wire brush 45, chips adhering to the running saw blade 21 are removed. At this time, the wire brush 4 is attached to the contact roller 65.
5 are in contact with each other, the bristles of the wire brush 45 enter the saw blade 21 by a predetermined amount.

Under the above action, even if the diameter of the wire brush 45 gradually decreases due to wear, the wire brush 45 is always in contact with the wire brush 45 because it is urged by the spring 71 in the direction of contacting the wire brush 45. The contact state of the contact roller 65 is maintained. Therefore, the bristles of the wire brush 45 are always inserted into the saw blade 21 by a predetermined amount.

When the sensor 73 detects that the guide bolt 39 has been positioned at a predetermined position, it can be seen that the wear of the wire brush 45 has increased and the diameter of the wire brush 45 has become smaller in use.

According to this embodiment, even when the diameter of the wire brush 43 becomes smaller due to wear, the contact state between the wire brush 43 and the contact roller 65 is maintained, so that the wire brush 43 The tip of the bristles always enters the saw blade 21 by a predetermined amount. Therefore, there is no need to adjust the wire brush 43 as in the conventional case, and work efficiency is improved.

Furthermore, since the guide bolt 39 is detected by the sensor 73, it is known that the diameter of the wire brush 45 has reached the minimum usable diameter. This has the effect of improving performance.

It should be noted that the present invention is not limited to the description of the embodiments described above, and can be implemented in various other forms by making appropriate changes.

[Effect of the invention] As understood from the description of the embodiments above,
According to the present invention, even when the diameter of the wire brush gradually decreases due to wear, the contact state between the wire brush and the contact member is maintained, so the tips of the wire brush bristles are always kept in place. A certain amount of it has entered the saw blade.

Therefore, there is no need to adjust the wire brush as in the past, and work efficiency is improved.

In addition, when the detector is detected by the sensor,
Since it is known that the diameter of the wire brush has become the minimum usable diameter, there is no need for the operator to directly detect the diameter of the wire brush 45, which has the effect of improving work efficiency.

[Brief explanation of drawings]

The drawings are for explaining embodiments according to the present invention.
The figure is a right side view of the chip removal device. FIG. 2 is a left side view of the chip removing device. FIG. 3 is a front view of the chip removing device. FIG. 4 is a plan view of the chip removing device. FIG. 5 is an enlarged view of the brush support device supporting the wire brush. FIG. 6 is a front view of the bandsaw machine. 1... Band saw machine 21... Saw blade 27... Chip removal device 35... Brush support member 3
9...Guide bolt 45...Wire brush 65
...Contact roller 71...Spring 73...Sensor agent Patent attorney Hide Kazuaki Miyoshi Figure 1 Figure 2 Figure 5 Figure 6 Procedural amendment letter Commissioner of the Japan Patent Office September 6, 1991 1゜Indication of the case Japanese Patent Application No. Hei 2-155414 2゜Name of the invention Chip removal device for a saw 3゜4゜Person making the amendmentAddress related to the case (residence) Name (Name) Address of the agent

Claims (2)

[Claims] (1) In a saw machine, a saw blade housing equipped with a saw blade is
A brush support member rotatably supports a circular wire brush that removes chips attached to the saw blade, and a contact member that can come into contact with the circumferential surface of the wire brush is provided near the saw blade, and the brush The supporting member is provided so as to be movable toward and away from the abutting member, and the bristles of the wire brush enter the saw blade by a predetermined amount when the abutting member abuts the circumferential surface of the wire brush. What is claimed is: 1. A chip removal device for a saw machine, characterized in that it is provided with a biasing means for biasing a wire brush in a direction to contact a contact member. (2) A detector is provided on the brush support member, and a sensor is provided at a predetermined position where the detector is located when the diameter of the wire brush becomes the minimum usable diameter due to wear. The chip removal device for a saw machine according to claim 1, characterized in that: