TW201910030A - Band saw blade switching device capable of safely and surely continuing the cutting operation - Google Patents

Abstract

The present invention provides a band saw blade switching device capable of remotely switching band saw blades even with a small number of parts, and capable of safely and surely continuing the cutting operation. A band saw blade switching device 1A which is provided with a band saw blade holding plate 20 for holding a band saw blade under a hanger portion 3, and for performing the switching operation of a band saw blade 100A erected on a drive wheel 71a and a driven wheel 71b of a band saw disk 7 under the condition that a crane means is in a suspended state. The band saw blade holding plate 20 is formed into a laterally-long elliptical shape along its front and back faces, and is provided with electromagnets 21, 22, and 23 which are formed in a laterally expanding manner as holding means configured to be in a state of holding the band saw blade 100A or removing the band saw blade 100A. The left and right ends of the band saw blade holding plate are rotatably supported by a shaft perform rotation operation for every 180 degrees through the motor 5, and can continuously perform the operation of changing a new band saw blade from the holding means while the holding means holds the operation of the old band saw blade and rotates the band saw blade holding plate which holds the old band saw blade for 180 degree.

Description

 Band saw blade exchange device  

The present invention relates to a band saw blade exchange device for a band saw disk, and more particularly to a tape cutting operation for a material that is contaminated by a radioactive substance or a risk of causing danger to the human body in the presence of radiation exposure. A sawing disc for the band saw blade exchange device for the remote and safe exchange of band saw blades.

The circular saw blade is provided on the driving wheel and the driven wheel. By rotating the driving wheel, the band sawing disk for cutting the object by the band saw blade without stopping the walking is known, and by its high cutting The breaking force and the cutting speed are often used for cutting hard objects or large-sized objects that are difficult to cut by ordinary tools, and the work efficiency is improved.

However, in the case of the exchange of the saw blade with wear, the old band saw blade that the operator disassembles on the drive wheel and the driven wheel is generally exchanged into a new band saw blade, but the exchange operation takes a huge time. And labor and easy to accompany danger. In addition, in the work environment such as the cutting operation of the object contaminated with the radioactive material or the fear of radiation exposure, the exchange of the saw blade by the human hand should be avoided from the viewpoint of the safety of the operator. .

In the Japanese Laid-Open Patent Publication No. Hei 4-105817, a band saw blade exchange device is provided which is provided with an operation frame and has a clamping means for supporting and supporting the band saw blade in a plurality of portions. a cutting edge exchange position of the saw blade housing between the two wheels of the operating frame and the saw blade housing by the operating portion; the operating arm, thereby moving away from the saw blade filling and reclaiming position The operator is operated so that the exchange of the band saw blades is automatically performed without manual intervention.

In addition, Japanese Laid-Open Patent Publication No. Hei 6-262429 proposes a band saw blade exchange device having a fixed saw blade holding wheel and a movable saw that is accessible or distant from the upper frame of the cutting head with two wheels. The blade retaining wheel plate body and having a tool storage for storing the band saw blade, the old band saw is recovered on one side of the side by making the plate body rotatable and the band saw blade can be held on both sides thereof The blade is supplied with a new band saw blade on the other side, and the band saw blade exchange device is further simplified by using both sides of the plate-like body as a reservoir.

However, in recent years, in radiation treatment facilities, nuclear power plants, and the like, in order to discard equipment that is contaminated with radioactive materials or to provide radioactive energy, the need to cut the size of the equipment into a predetermined waste container has increased. In this case, the space for the cutting operation is more limited than usual, and the demand for the band saw blade and the band saw blade exchange device which are contaminated by the work must be safely discarded at the end.

Therefore, the apparatus for performing the cutting operation in such a situation is required to be reduced in size more compactly than the above-mentioned ones. Therefore, it is desirable to develop a band saw disc which is small in number and simple, and which can safely and surely continue the cutting operation. Band saw blade exchange device.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 4-105817

[Patent Document 2] Japanese Patent Laid-Open No. Hei 6-262429

The present invention has been made in order to solve the problems as described above, and relates to a band saw blade exchange device which is capable of safely and surely continuing a band saw disk by a simple configuration of a small number of parts and capable of remotely exchanging a band saw blade. Cut off the work.

Here, the present invention relates to a band saw blade exchange device comprising: a hanger portion having a coupling means for connecting a crane means on an upper end side; and a band saw blade holding plate which is continued below the hanger portion and held A band saw blade; a band saw blade exchange device for performing an exchange operation of a drive wheel and a driven blade erected on a band saw blade while being vertically suspended while being suspended by a crane; The band saw blade holding plate is formed by forming a horizontally long elliptical shape along the front and back surfaces thereof and a horizontally long holding means in a state in which the operation of the band saw blade can be maintained and the operation is performed on the front and back sides. Further, the center portions of the left and right end sides thereof are pivotally supported by the center line of the long diameter direction below the hanger portion as a rotary shaft, and the motor attached by the shaft support portion can be rotated every 180 degrees; Perform two operations: the drive side and the driven wheel that are not holding the band saw blade from the front side, and the old band saw blade is moved by the holding means to keep the operation, and will keep the old A band saw blade of the band saw blade retaining plate 180 degree rotation and holds a new side of the band saw blade and the band saw blade from the new operation is mounted from the front of the drive wheel and the driven wheel from near the holding means.

In this way, by forming the band saw blade exchange device and the band saw disk as another mechanism and performing the moving operation of the band saw blade exchange device by the crane means, the band saw blade moving means such as the operating arm is omitted, thereby achieving simplicity. In addition to the above, the front and back sides of one of the band saw blade retaining plates are provided with a retaining means for retaining the band saw blade and the old band of the band saw disk is received by the retractable operation by an empty retaining means. The saw blade is directly rotated by 180 degrees and the new band saw blade is attached to the band saw disk from the other side of the holding means, so that the exchange work can be easily performed even with a simple minimum number of parts, which is safe and reliable. Continue the cutting machine for the band saw disc.

Further, in the band saw blade exchange device, if it is characterized by two holding means of the band saw blade holding plate, a plurality of electromagnets each having a predetermined position on the outer edge side of the front and back sides of the band saw blade holding plate are provided. The inner surface of each of the electromagnets is magnetically adsorbed to a predetermined portion of the outer peripheral surface of the band saw blade, and is formed in an elliptical shape, and the operation of excitation and demagnetization of the electromagnet can be performed remotely and can be performed by individual operations. In this case, it is not necessary to carry out a wheel-like large part such as a saw blade or a complicated part such as a belt-saw blade changer, and the band saw blade can be easily carried out.

In this case, if the feature is the configuration of the electromagnet, the magnetic pick-up blade is maintained in an elliptical shape, and the short-diameter of the band saw blade is compared with the state in which the drive wheel and the driven wheel of the band saw disk are erected. The short diameter is large, and the long diameter is smaller than the long diameter of the above-mentioned erected state, and the state of the driven wheel is moved toward the driving wheel when the band saw blade of the band saw blade is removed, and all the electromagnetic stones are When the inner circumference side space of the slightly elliptical shape is formed to accommodate two wheels, only the excitation of the electromagnet, the degaussing operation, and the movement of the driven wheel can easily and surely perform the band saw blade attachment and detachment operation.

According to the present invention, the other mechanism is formed by the band saw disc and the moving operation of the band saw blade exchange device is performed by the crane means, and the retaining means for holding the band saw blade is formed on the front and back sides of the band saw blade holding plate and formed to be rotatable. The operation can realize the remote exchange of the band saw blade even with a simple configuration of a small number of parts, and can safely and surely continue the cutting operation of the band saw disk.

1A, 1B, 1C‧‧‧ band saw blade exchange device

2‧‧‧ Storage Department

3, 3B, 3C‧‧‧ hangers

5‧‧‧Motor

7, 7B, 7C‧‧‧ band saw disc

20‧‧‧Saw blade retaining plate

21, 22, 23, 26‧‧‧Electrical Stone

40a, 40b, 40c, 40d‧‧‧ hanging rings

71a‧‧‧Drive wheel

71b‧‧‧ driven wheel

100A, 100B‧‧‧ band saw blade

Fig. 1 is a front elevational view of a band saw blade exchange device according to an embodiment of the present invention.

Fig. 2 (A) is a perspective view of the band saw blade exchange device of Fig. 1, and Fig. 2 (B) is a perspective view showing a state in which the band saw blade holding plate is rotated 180 degrees from the (A) state.

Fig. 3 is a perspective view showing a state in which the band saw blade exchange device is aligned in order to exchange the band saw blades of the band saw disk using the band saw blade exchange device of Fig. 1.

Fig. 4 is a perspective view showing a state in which the band saw blade exchange device is brought closer to the band saw disk and the old band saw blade is moved from the state of Fig. 3.

Fig. 5 is a perspective view showing a state in which the band saw blade exchange device is pulled away from the band saw disk and the old band saw blade is removed from the state of Fig. 4.

Fig. 6 is a perspective view showing a state in which the band saw blade holding plate is rotated 180 degrees from the state of Fig. 5.

Fig. 7 is a perspective view showing a state in which a band saw blade exchange device is brought close to a band saw disk and a new band saw blade is attached from the state of Fig. 6.

Fig. 8 is a perspective view showing a state in which the band saw blade exchange device is pulled away from the band saw disk from the state of Fig. 7 to complete the exchange operation of the band saw blade.

Fig. 9 is a perspective view showing an application example of the band saw blade exchange device of Fig. 1.

Fig. 10 is a perspective view showing another application example of the band saw blade exchange device of Fig. 1.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Further, in the present invention, the elliptical system includes an oblong shape (rounded rectangle), an elliptical shape, and an egg shape.

Fig. 1 is a front elevational view showing the band saw blade exchange device 1A of the present embodiment. The band saw blade exchange device 1A, a radiation therapy facility, a nuclear power plant, etc., for cutting a device that is contaminated with radioactive materials or imparts radioactive energy, and cuts the device into a size that can be stored in a predetermined waste container. The disc is preset to remotely exchange the device with the saw blade, and is suspended and three-dimensionally moved by a crane device (not shown), and simultaneously mounted on the driving wheel and the driven wheel exposed on the upper portion of the band saw disc (not shown). The belt saw blade exchange device.

The band saw blade exchange device 1A is composed of a hanger portion 3 constituting an upper side thereof and a storage portion 2 constituting a lower portion, and the hanger portion 3 is formed by bending a tubular member into a mountain-shaped arm body 3a. And the hanging loops 40a, 40b, 40c (not shown), 40d, and the frame 3b disposed on the lower end side of the arm body 3a, and the storage portion 2 is disposed on the inner peripheral shaft of the frame 3b. The horizontally long band saw blade holding plate 20 having the holding means on both sides of the front and back sides and the motor 5 for driving the rotation are supported.

The hanging loops 40a, 40b, 40c, and 40d of the hanger portion 3 constitute a connecting means for connecting the crane means, and the tubular members which are formed in a cross shape in plan view are arranged at equal intervals to form a plan view square. In the case where the rope is suspended, the band saw blade exchange device 1A becomes difficult to shake. Further, from a position slightly in the middle of the loops 40a and 40b of the arm body 3a, the wiring 45 in the arm body 3a protrudes upward and is exposed, and is connected to an operation means (not shown) or the like.

The band saw blade holding plate 20 of the storage portion 2 is provided with a horizontally long holding means on both sides of the front and back sides, and is capable of holding operation: a band saw blade (not shown) having an elliptical shape that is horizontally long along the front and back surfaces thereof; And detachment operation: detach the band saw blade. In other words, the plurality of electromagnets 21, 22, and 23 are disposed at predetermined positions on the outer and outer sides of the front and back sides of the band saw blade holding plate 20, and magnetically adsorbed ferromagnetic on the inner peripheral side of the individual inner peripheral surface. In the case where the band saw blade of the system has a predetermined portion on the peripheral surface and is formed in an elliptical shape, the demagnetization and excitation operations are distal and are characterized by being forward and reverse respectively.

Further, the center portions of the left and right end sides of the band saw blade holding plate 20 are formed on the both end sides of the frame body 3b with the hanger portion 3C facing downward, and the center line of the long diameter direction is used as the rotary axis via the shafts 51 and 52. The shaft is rotatably supported and can be rotated by 180 degrees by the motor 5 attached to the shaft support as shown in Fig. 2(B). Further, in addition to the electric servo motor, the motor 5 may be a hydraulic motor in consideration of the use in water or the like.

Further, the arrangement of the electromagnets 21, 22, 23 of the band saw blade holding plate 20 is a short diameter of the band saw blade in which the band saw blade is maintained in an elliptical shape by magnetic attraction, and is driven by the band saw blade. The short diameter of the state in which the wheel and the driven wheel are erected is slightly larger, and the long diameter is slightly smaller than the long diameter of the state of the erecting. When the band saw blade of the band saw blade is removed, the driven wheel moves toward the driving wheel side. In the state where the inner circumference side space of the slightly elliptical shape formed by all the electromagnets is accommodated in two wheels, only the excitation of the electromagnet, the degaussing operation, and the movement of the driven wheel are performed, and the band saw can be easily performed. The blade is taken off the job.

Next, the order of use of the band saw blade exchange device 1A of the present embodiment will be described with reference to Figs. 3 to 8 . The band saw disk 7 for the object of the band saw blade exchange using the band saw blade exchange device 1A, as shown in FIG. 3, is mainly reserved above the susceptor 70, and is slidably supported by the struts 73 in the up and down direction. The drive wheel 71a and the driven wheel 71b disposed on the front side of the head 71 are formed by the band saw blade 100A, and the drive wheel 71a and the driven wheel 71b are relatively simple and simple to expose the front side. Further, the band saw disc 7 is provided with a blade torsion mechanism for supporting the blade edge of the band saw blade toward the lower side at the cutting position, but retracts to a position where it is not obstructed during the exchange operation of the band saw blade.

Next, in the case where the band saw blade 100A worn by the band saw disk 7 is exchanged, the band saw blade B of the band saw blade holding plate 20 is oriented toward the unsupported state by suspending the band saw blade exchange device 1A by a crane device (not shown). The surface side of the state is simultaneously moved to the front position of the drive wheel 71a and the driven wheel 71b of the band saw disk 7, and the height of the band saw blade holding plate 20 and its left and right end sides are aligned with the drive wheel 71a and the driven wheel. The band saw blade 100A erected by 71b is then moved close to this.

4, the band saw blade holding plate 20 is in a state of approaching the drive wheel 71a and the driven wheel 71b, and a plurality of electromagnets 21, 22, 23 disposed on the outer peripheral side of the back surface of the band saw blade holding plate 20 (not shown) The short diameter of the inner peripheral side space is slightly larger than the diameter of the drive wheel 71a, so that it is accommodated in the left side portion of the inner peripheral side space and the back surface of the band saw blade holding plate 20 is slightly close to the front surface of the drive wheel 71a. status.

On the other hand, the long diameter of the inner circumferential side space is slightly shorter than the outer diameter of the outer circumference of the drive wheel 71a and the driven wheel 71b. Therefore, the electromagnet 21 (not shown) contacts the front side of the driven wheel 71b and the inner circumferential side space. The driven wheel 71b is not housed in the right side portion. Here, when the driven wheel 71b is moved toward the drive wheel 71a, the state in which the band saw blade is removed, the driven wheel 71b is accommodated in the inner peripheral side space, and all the electromagnetic stones 21, 22, and 23 are energized. Magnetically, the outer peripheral side of the band saw blade 100A is adsorbed and held away from the drive wheel 71a and the driven wheel 71b.

Next, as shown in FIG. 5, the band saw blade switching device 1A holding the old band saw blade 100A is pulled away from the band saw disk 7 by a prescribed distance, and the band saw is driven by driving the motor 5 as shown in FIG. The blade holding plate 20 is rotated by 180 degrees, and the surface side of the new band saw blade 100B is held toward the drive wheel 71a and the driven wheel 71b of the band saw disk 7.

Then, as shown in FIG. 7, the idle driven wheel 71b and the drive wheel 71a are housed in the inner peripheral side space in which the new band saw blade 100B is held, and are closely attached, and the driven wheel 71b is separated from the drive wheel 71a. The inner circumferential surface of the band saw blade 100B is tightly attached thereto. In this state, all of the electromagnets 21, 22, and 23 are demagnetized, so that the band saw blade 100B is released from the state to complete the erection of the driven wheel 71b toward the drive wheel 71a, and the band saw blade exchange device 1A as shown in FIG. The saw blade 7 is pulled apart to end the exchange operation of the band saw blade 100A.

Thus, by adopting the present embodiment, the band saw blade exchange device 1A is formed with the band saw disk 7 as another mechanism and the moving operation is performed by the existing crane means, compared to the band saw blade exchange device. The past example in which the band saw blade is attached is integrated, and a simple configuration can be realized with a small number of parts, and a safe and reliable band saw blade exchange operation can be performed.

In addition, the holding means of the band saw blades 100A, 100B of the electromagnets 21, 22, 23 are provided on the front and back sides of one of the band saw blade holding plates 20, and can be rotated to the operator, thereby receiving by an empty holding means. The old band saw blade 100A of the band saw disk 7 is rotated by 180 degrees, and the new band saw blade 100B is attached to the band saw disk 7 from the other side holding means, so that the above-mentioned continuous operation can be achieved, so even if the above is the lowest With the extremely simple configuration of the number of parts, the exchange operation of the band saw blades 100A, 100B can be completed in a short time, and the cutting operation of the band saw disk 7 can be carried out safely and surely.

Fig. 9 shows a band saw blade exchange device 1B of an application example of the band saw blade exchange device 1A. The band saw blade exchange device 1B is characterized in that one of the hanger portions 3B projects rearward so as to be aligned with the position alignment bars 32a, 32b of the band saw disk 7B. Further, in the band saw blade 7B to which the above-described position alignment levers 32a and 32b are disposed, the guide bodies 72a and 72b having the inlet side on the funnel-shaped inner side are provided, and the guide bodies 72a and 72b can be easily arranged. The position of the band saw blade exchange device 1B is aligned. Further, a CCD camera may be provided at the front end or the vicinity of the position alignment levers 32a, 32b, and the operator can perform the position alignment operation while checking the screen.

Fig. 10 shows a band saw blade exchange device 1C to which an application example common to the above-described band saw blade exchange devices 1A, 1B is applicable. This example is characterized in that the band saw blade holding plate 20 is provided with electromagnets 26 and 26 on both the front and back surfaces, and the magnetic attraction drive wheel 71a and the driven wheel 71b (the detachment position) are centrally positioned.

Thereby, the correct alignment of the band saw disk 7C of the band saw blade exchange device 1C becomes easier, and the state of the position alignment is easily maintained by the magnetic force thereof. Further, the drive wheel 71a and the driven wheel 71b of the band saw disk 7C to be applied are preferably provided with magnetically adsorbable ferromagnetic adsorbent bodies 76 and 76 at the center thereof, and a material which is hard to be magnetically adsorbed is preferably provided around the periphery.

In addition, in all of the above-described embodiments, the arrangement of the electromagnets 21 and 21 on the both end sides in the longitudinal direction of the band saw blade holding plate is arranged such that the width of the inner peripheral side space in the longitudinal direction is Slightly larger than the width of the outer peripheral side when the drive wheel 71a and the driven wheel 71b are mounted, and the range of the predetermined width on the inner circumference side of either or both of the electromagnets 21, 21 is used as a sliding operator, and the band saw blade 100A is erected. Both of the drive wheel 71a and the driven wheel 71b can be directly accommodated in the inner peripheral side space, and the state in which the driven wheel 71b is close to the drive wheel 71a and the lateral width is reduced can be easily matched, and the smoothing can be smoothly performed. Exchange operations are carried out.

As described above, with regard to the band saw blade exchange device, the present invention can achieve the remote exchanger of the band saw blade even with a simple configuration of a small number of parts, and can safely and surely continue the cutting operation of the band saw disk.

Claims (3)

 A band saw blade exchange device comprising: a hanger portion having a coupling means for connecting a crane means on an upper end side; and a band saw blade holding plate connected to the lower portion of the hanger portion and holding a band saw blade; A band saw blade exchange device for performing an exchange operation of a drive wheel and a driven blade erected on a band saw blade while the crane is suspended in a state of being suspended by a three-dimensional movement operation, wherein the band saw blade is maintained The plate has a horizontally long elliptical shape along the front and back surfaces thereof, and is provided with a holding means that is horizontally long in a state in which the operation of the band saw blade can be maintained and the operation is performed on both sides of the front and back sides, and The central portion of the both end sides is pivotally supported by the center line in the longitudinal direction of the lower portion of the hanger portion as a rotary shaft, and the motor attached by the shaft support portion can be rotated every 180 degrees; and two of them can be continuously implemented. Operation: the operation of the drive wheel and the driven wheel that does not hold the band saw blade from the front side of the band saw blade and the old band saw blade are moved by the aforementioned holding means, and The band saw blade holding plate of the old band saw blade is rotated 180 degrees and the side of the blade with the new band saw blade is brought close to the driving wheel and the driven wheel from the front side and the new band saw blade is detached from the holding means. Installation operation.    The band saw blade exchange device according to claim 1, wherein the two holding means of the band saw blade holding plate are provided separately at a predetermined position on the outer edge sides of the front and back sides of the band saw blade holding plate. The plurality of electromagnets are disposed on the inner peripheral surface of each of the electromagnetic stones, and the elliptical shape is maintained at a predetermined portion of the outer peripheral surface of the magnetic chucking blade, and the magnetizing and demagnetizing operations of the electromagnet can be performed remotely and positively. Anti-individual operation.    The band saw blade switching device according to claim 2, wherein the electromagnetic stone is disposed in an elliptical shape by a magnetic suction band saw blade, and the short diameter ratio of the band saw blade is the same as the band The short diameter of the state in which the driving wheel and the driven wheel of the sawing disc are erected is large, and the long diameter is smaller than the long diameter of the erected mounting state, and the band saw blade of the band sawing disc is replaced by the aforementioned In a state in which the driven wheel moves toward the drive wheel side, the two wheels are accommodated in the inside of the inner peripheral side space of the slightly elliptical shape formed by the entire electromagnet.