JPS5817702Y2 - Band saw rust removal device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rust removing device for efficiently removing rust generated on a metal band saw used for cutting wood.

Band saws used in sawmills etc. are extremely susceptible to oxidation due to moisture contained in the wood and frictional heat during wood cutting, resulting in red rust that reduces the efficiency of wood cutting work and at the same time has negative effects on the cut wood. It is a well-known fact that this is the cause of this.

For this reason, it has been common practice to remove the rust that has formed on band saws, but the conventional means of removing this kind of rust is to manually or mechanically rub it off using sandpaper, wire brushes, etc. In most cases, this method is not only extremely inefficient, but also has the drawback that the finished surface is uneven, making it impossible to obtain a sufficient finished surface.

In view of the above circumstances, the present invention improves the shortcomings of conventional rust removing means and provides a device for removing rust from band saws efficiently and with a good finish. and a rotating roll whetstone installed so as to be able to approach and separate from the band saw to be treated, and when the band saw to be treated comes into contact with the rotating roll grindstone, the band saw is moved opposite to the contact surface in order to maintain the contact surface of the band saw in a bowed state. The rotary roll grindstone is attached to a holding frame that is tiltably supported by a fixed frame installed on the machine stand at the above position, and the degree of pressure contact with the band saw to be processed is adjusted. It is characterized by a possible configuration.

Hereinafter, the specific configuration of the present invention will be described with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows a case in which rust is removed from an endless band saw as an example of the present invention. A series of mechanisms includes a rotary roll grindstone 3 and a support roll 4, which can be freely tilted, while the band saw B to be treated is being transported, and a rotary roll grindstone 3 and a support roll 4, which can be tilted freely, are arranged, and the rust is removed by passing under the rotary roll grindstone 3 and over the support roll 4. Illustrated.

Therefore, in the configuration shown in FIG. 1, the transfer rollers 2a and 2b not only transfer the band saw B to be processed, but also
It is preferable to also have a so-called stabilizing action, which corrects the steel beam of the band saw that is used for cutting and corrects distortion due to thermal deformation or the like.

On the other hand, the rust removal part consisting of the rotating roll whetstone 3 and the support roll 4 is attached to the fixed frame 5 installed on the machine base 1, as shown in enlarged detail in FIGS. 2 and 3. A frame 6 holding the rotating roll grinding wheel 3 is tiltably supported, and the rotating roll grinding wheel 3 is attached to an end of the tilting frame 6 by a shaft 7.
is attached so that it can approach and separate from the band saw B to be processed, which moves integrally with the tilting frame 6.

This tilting frame 6 is equipped with a motor 8 for driving the rotating roll grinding stone 3 on the other end thereof, and a belt 11 is mounted between pulleys 9 and 10 fixed to the respective shaft ends of the motor 8 and the rotating roll grinding stone 3. Drive is transmitted to the rotating roll grindstone 3 by passing the hook.

Further, the support shaft 12 that supports the tilting frame 6 in a tiltable manner with respect to the fixed plate 5 is screwed into a screw hole bored between both ends of the tilting frame 6, and is attached to the end thereof. By rotating the adjustment handle 13, the tilting frame 6
is moved appropriately in the width direction of the band saw B to adjust the position.

On the other hand, a screw hole is also formed in the protrusion 5a of the fixed frame 5, and a screw shaft 14 for adjusting the tilt is screwed into the screw hole. The lower end of the shaft 14 presses downwardly the frame plate 16 that extends over both ends of the tilting frame 6, changing the inclination of the tilting frame 6, and aligning the rotating roll grindstone 3 with respect to the band saw 8 surface. The structure is such that they can be brought into contact with a high degree of pressure contact.

Further, the support roll 4 that separates the band saw B from the rotating roll grinding stone 3 is provided close to the transfer roller side of the rotating roll grinding stone 3 in the figure,
The band saw B to be processed between the rollers a and 2 b is lifted from the lower surface in the vicinity of the portion in contact with the rotary roll grindstone 3, and the grindstone contact surface of the band saw B to be processed is stretched and held in an arched state.

The position of this support roll 4 may be any position that can stretch and hold the grinding wheel contact surface of the band saw B in a bowed state. In the figure, it is on the transfer roller side of the rotary roll grinding wheel 3, but this position is the most suitable. It is valid.

However, regardless of whether the position is before or behind the rotating roll grindstone 3, it is preferable to arrange it as close to the grindstone 3 as possible.

Further, the number of supporting rolls 4 is not limited to one, but two or more may be provided at the front and rear of the grindstone 3, or at the front or rear of the grindstone 3, as long as it does not deviate from the above-mentioned purpose.

FIG. 4 shows another modified embodiment of the device of the present invention, in which the first
While the apparatus shown in Figures to Figure 3 performs rust removal while passing the band saw B to be processed under the grinding wheel mechanism, the band saw B to be processed is positioned on the side of the grinding wheel mechanism, and the band saw B to be processed is placed on the machine stand. This is a case where rust removal is carried out while being transferred flatly.

Even in this case, the arrangement of the transfer roller, rotating roll grindstone, and support roll is substantially the same as in the case of FIGS. 1 to 3, but in this embodiment, the rotating roll There is an advantage that the grindstone 3 can be arranged to process both sides at the same time.

In FIG. 4, the same reference numerals as those in FIGS. 1 to 3 indicate the same members, and 17 indicates a guide roller for guiding the band saw on the machine base 1.

The device of the present invention has the above-mentioned configuration.Next, its operation and mode of use will be explained with reference to the embodiments shown in FIGS. 1 to 3. First, the device shown in FIG. Loosen the inclination adjustment handle 15 in the approach/separation mechanism for the rotary roller grindstone 3, put the tilting frame 6 in a substantially horizontal state as shown by the two-dot chain line, and retract the rotary roller grindstone 3 upward. 2 roller member 2a
, 2b and set as shown in Figure 1.

Next, after setting is completed, the transfer roller 2 is rotated to transfer the band saw B to be processed in the direction of the arrow, and the motor 8 is rotated to turn the rotary roll grindstone 3 into a rotating state, and then the inclination adjustment handle 15 is gradually rotated. Then, the inclined frame 6 is tilted to an appropriate position and the rotary roll grindstone 3 is brought into contact with the band saw B to be treated with appropriate contact pressure, and the rust removal work is sequentially performed over the entire circumference.

In addition, if the width of the rotating roller grinding stone 3 is narrower than the width of the band saw B to be processed, after completing one round, turn the position adjustment handle 13 to move the rotating roller grinding stone 3 to the unprocessed part of the band saw B,
Rust is removed over the entire circumference of the bandsaw B by the same operation as described above again.

In this way, the required rust removal for the band saw is completed. At this time, if the transfer roll is used as a tightening roll, it is possible to remove the rust and correct the distortion at the same time, thereby achieving a double effect.

As mentioned above, according to the device of the present invention, while the band saw to be treated is being transported by the transfer roller, rust can be removed by applying appropriate pressure with the rotating roller grinding wheel, so that rust removal can be performed using conventional sandpaper or wire brushes. In comparison, it is possible to perform rust removal work on a band saw extremely efficiently, and during rust removal work, the support roll lifts the band saw to be treated from below, and the grinding surface is warped and brought into contact with the rotating roll whetstone. This has the effect of evenly removing the rust that occurs on the band saw and easily and efficiently achieving a clean finished surface. It is held by a frame and the degree of pressure contact can be adjusted, so by appropriately adjusting and changing the inclination of the tilting frame, the rotary roll grindstone can be pressed against the band saw surface at an appropriate degree of pressure contact in relation to the support roll. It is easy to use and makes the rust removal work of the rotating roll whetstone even more effective when it is warped, and it is also easy to use in conjunction with a grinding machine, etc., and when the grinding roller is used as a transfer roller, it can be used at the same time as the rust removal work. This device has various features such as being able to perform waist tightening work at the same time, and contributes to improving the efficiency of band saw rust removal work as well as wood cutting work, making this device a device of great practical value. be.

[Brief explanation of the drawing]

Figure 1 is an overall schematic diagram of the device of the present invention, Figures 2 and 3
The figure shows an example of a mechanism for approaching and separating a rotary roll grindstone, FIG. 2 is a side view of the mechanism, FIG. 3 is a plan view of the mechanism, and FIG. 4 is a perspective view showing another embodiment of the device of the present invention. It is a diagram. B: Band saw to be processed, 2: Transfer roller, 3: Rotating roll grindstone, 4: Support roll.

Claims (1)

[Scope of utility model registration request] 1. a transfer roller 2 for transferring the band saw B to be processed;
A rotating roll grindstone 3 located on the rear side of the transfer roller 2 with respect to the transfer direction of the transfer roller 2 and installed so as to be able to approach and separate from the band saw B to be processed transferred by the transfer roller 2, and the rotating roll grindstone. 3 and a support roll 4 provided between the transfer roller 2 and in close proximity to the rotating roll grinding wheel 3 on the opposite side of the band saw B to be treated with respect to the rotating rolling grinding wheel 3, and the rotating roll grinding wheel 3 is located at the position indicated above. The supporting roll 4 is attached to a holding tilting frame 6 which is tiltably supported by a fixed frame 5 installed on the machine base 1, and the degree of pressure contact with the band saw B to be processed can be adjusted. This rust removing device for a band saw is characterized in that when the band saw B comes into contact with a rotary roll grindstone 3, the band saw B is lifted and supported from the opposite side of the contact surface to hold the contact surface in a bowed shape. 2. The rust removing device for a band saw according to claim 1, wherein the transfer roller 2 is a distortion correction and tightening roller of the band saw B.