JPH06182620A - Band sawing machine - Google Patents

Abstract

PURPOSE:To stock plural band saws while saving the space. CONSTITUTION:A band sawtooth 29 driven to run is removably provided on a sawtooth housing 13, a stock base 77 is provided in such a manner as to elevate on the base 3 above the sawtooth housing 13, and a rotating member 83 extended in the longitudinal direction of the sawtooth housing 13 is rotatably provided on the stock base 77. Plural stock parts 87 for stocking a band sawtooth 29 are radially disposed on the rotating member 83, and a sawtooth replacing means is provided for replacing a band sawtooth 29 mounted on the sawtooth housing 13 with a band sawtooth 29 stocked in a suitable stock part 87.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band saw machine equipped with a saw blade stocking device for stocking a band saw blade.

[0002]

2. Description of the Related Art Briefly explaining the prior art of a band saw machine, a saw blade housing is provided on a base so as to be able to move up and down, and a traveling band driven saw blade is detachably provided inside the saw blade housing. There is. A saw blade stock device having a plurality of stock portions for stocking the band saw blade is provided at a horizontal lateral position of the saw blade housing, and the band saw blade stocked in an appropriate stock portion and the saw blade housing are provided. A saw blade changing means for changing the attached band saw blade is provided at an appropriate position.

[0003]

In the conventional band saw machine as described above, since the saw blade stock device is provided at the horizontal side position of the saw blade housing, a large space is required, and the space of the factory is effectively saved. There was a problem that it could not be used and work efficiency deteriorated.

Therefore, an object of the present invention is to provide a band saw machine which can solve the above problems.

[0005]

In order to solve the above-mentioned conventional problems, in the present invention, a saw blade housing is provided on a base, and a traveling saw-driving band saw blade can be detachably replaced. A stock base is provided above the saw blade housing so as to be movable up and down with respect to the base, and a rotary member extending in the longitudinal direction of the saw blade housing is rotatably provided on the stock base. It is characterized in that a plurality of stock parts for stocking the band saw blade are radially provided, and a band saw blade mounted on the saw blade housing and a saw blade exchanging means for exchanging the band saw blade stocked in the appropriate stock part are provided. And Here, the saw blade housing may be of a type that moves in the vertical direction (vertical direction) or a type that moves in the horizontal direction.

[0006]

In the above structure, the band saw blades are respectively stocked in the plurality of stock portions. Then, by raising the elevating body with respect to the base, the plurality of stock portions can be positioned above the saw blade housing.
It should be noted that at least one stock part is empty with no band saw blade stocked.

When replacing the band saw blade, the empty stock portion is positioned at a position corresponding to the saw blade housing by lowering the stock base with respect to the base and rotating the rotating member. Next, by appropriately operating the saw blade changing means, the band saw blade (before replacement) is detached from the saw blade housing, and the band saw blade is stocked in the empty stock portion. Then, the stock base is once raised with respect to the base to raise the plurality of stock units.

After raising the stock base once, the stock base is lowered with respect to the base and the rotary member is rotated, so that an appropriate stock portion is positioned at a position corresponding to the saw blade housing. Then, by appropriately operating the saw blade replacement means, the band saw blade (after replacement) is detached from the appropriate stock portion, and the band saw blade is attached to the saw blade housing.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to this embodiment will be described below with reference to the drawings.

Referring to FIGS. 1, 2, 3, and 4, the horizontal band saw machine 1 is stretched in the left-right direction (the left-right direction in FIGS. 2 and 4, and the front-back direction toward the paper surface in FIG. 3). The base 3 and the rear side of the base 3 (right side in FIGS. 1 and 3
The support frame 5 is integrally provided by extending in the front-rear direction on the back side in FIG. 2 and the upper side in FIG. 4).

A pair of guide posts 7, 9 are provided upright on the left and right portions of the base 3, and the pair of guide posts 7, 9 are provided.
9, the vertical direction (vertical direction in FIGS. 1, 2 and 3;
In FIG. 4, a guide member 11 extending in the front and back directions toward the paper surface is provided. A saw blade housing 13 is provided on the guide member 11 so as to be able to move up and down. To raise and lower the raising and lowering housing 13, a lifting and lowering housing is provided with a piston rod 15 that is vertically movable at an appropriate position on the base 3. A cylinder 17 is provided, and the tip end portion of the piston rod 15 is connected to an appropriate position of the saw blade housing 13.

A drive wheel 19 is provided on the right side inside the saw blade housing 13, and the drive wheel 1 is provided.
9 can be rotationally driven by driving the wheel motor 21. A wheel support member 23 is provided on the left side in the saw blade housing 13 so as to be movable in the left and right directions by the operation of the fluid pressure cylinder 25.
A driven wheel 27 is rotatably supported by the. An endless band saw blade 29 is removably wound around the drive wheel 19 and the driven wheel 27.

The saw blade housing 13 is provided with a pair of support arms 31 and 33, and one support arm 31 is provided.
Is movable in the left-right direction in which it approaches and separates from the other support arm 33. A roller support member 37 having a pair of guide rollers 35 for guiding and supporting the body of the band saw blade 29 is provided at the tip of each of the support arms 31 and 33 so as to be rotatable by the operation of a fluid pressure cylinder (not shown). Yes (Fig. 7
Of the pair of guide rollers 35, one guide roller 35 is movable by a slight amount in the direction of approaching and separating from the other guide roller 35 by the operation of a mini cylinder (not shown). Here, the roller support member 37
The band saw blade 2 is configured to be rotatable by twisting the band saw blade 29 guided and supported in the pair of guide rollers 35.
This is because the blade edge of 9 is perpendicular to the material W to be cut (see FIG. 7).

A wire brush 39 for removing chips adhering to the band saw blade 29 is provided at a position near the drive wheel 19 in the saw blade housing 13, and the wire brush 39 is provided in the brush cylinder 41. The saw blade housing 13 can be moved up and down by operation.

A body vice device 43 for holding and fixing the side surface of the material to be cut W from the horizontal direction is provided at an appropriate position in front of the cutting position on the base 3. The main body vise device 43 includes a fixed vise 45 and a movable vise 47 that is movable toward and away from the fixed vise 45 by the operation of the vise cylinder.

The support frame 5 is provided with a work transfer device 49 for transferring the work W in the forward direction.

More specifically, the support frame 5 is provided with a plurality of support rollers 51 which are rotatable in the front-rear direction, and the front side of the support rollers 51 in the support frame 5 holds the material W to be cut. 53 is provided. The transfer vise device 53 includes a vise head 55 movable in the front-rear direction, a fixed vise 57 provided on the vise head 55, and a movable vise 59. In order to move the vise head 55 in the front-rear direction, a transfer cylinder 63 having a piston rod 61 movable in the front-rear direction is provided at an appropriate position of the support frame 5, and a tip portion of the piston rod 61 has a tip portion. 55 are connected to appropriate positions. The movable vise 57 is movable in the left-right direction in which the movable vise 57 approaches and separates from the fixed vise 57 by the operation of the vise cylinder 65 provided on the left side of the vise head 55.

With the above structure, after the material W to be cut is supported by the support roller 51, the movable vise 59 is moved to the right toward the fixed vise 57 by the operation of the vise cylinder 65 to move the movable vise 59 and the fixed vise 57. The material W to be cut is sandwiched by. Then, the transfer vise device 53 is moved forward by the operation of the transfer cylinder 63 to move and position the material W to be cut between the fixed vise 45 and the movable vise 47 in the main body vise device 43.

After moving and positioning the material W to be cut,
The band saw blade 29 is driven to run by the drive motor 21, and the saw blade housing 13 is lowered by the operation of the elevating cylinder 17. As a result, a desired cutting process can be performed on the material W to be cut.

A saw blade stocking device 67 for stocking a plurality of band saw blades 29 is provided above the saw blade housing 13.

The details of the saw blade stock device 67 will be described with reference to FIGS.
A guide member 69 extending in the vertical direction is provided on the left side of the, and an elevating frame 71 is provided on the guide member 69 so as to be able to move up and down. In order to move the elevating frame 71 up and down, the elevating frame 71 is provided with an elevating cylinder 75 having a vertically movable piston rod 73, and the lower end of the piston rod 73 is located at an appropriate position on the left side of the base 3. It is connected.

A stock base 77 is integrally provided on the upper right side of the lifting frame 71, and a rotary shaft 79 extending in the left-right direction is rotatably provided on the stock base 77. In order to rotate the rotary shaft 79, a control motor 81 such as a servo motor is provided at an appropriate position on the front side of the elevating frame 71, and the control motor 81 is interlockingly connected to a rotary member via a pulley, a timing belt or the like. Yes (see FIG. 4). The rotary shaft 79 is a known shot pin device (not shown) provided on the stock base 77.
By the action of, it is possible to switch between a rotatable state and a non-rotatable state.

A support pipe 83 having a rectangular cross section is provided on the outer peripheral portion of the rotary shaft 79 so as to extend in the left-right direction. It can be moved by a small amount and is non-rotatable with respect to the axis of rotation 79, for example via a spline or a key.

A plurality of stock portions 87 for stocking the band saw blades 29 are radially provided on the support pipe 83.

Explaining the details of the stock portion 87, a pair of support arms 89 are provided on the respective side surfaces (four surfaces in this embodiment) of the support pipe 83 so as to be separated from each other on the left and right sides. Are connected by a support plate 91 extending in the left-right direction.

Each support arm 8 in each stock section 87
A pair of gripper devices 93 for gripping the body of the band saw blade 29 (four gripper devices 93 for each stock portion 87)
And each gripper device 93 includes a fixed gripper 9
5 and a movable gripper 97 that can move in a direction toward and away from the fixed gripper 95. The fixed gripper 95 is fixed to a guide member 99 provided at an appropriate position on the support arm 89, and the movable gripper 97 is movably supported by the guide member 99. In order to move the movable gripper 95 in the approaching and separating directions,
The cylinder body of the grip cylinder 101 is integrally attached to the movable grip 95, and the tip end portion of the piston rod of the grip cylinder 101 is connected to the fixed gripper 95.

With the above structure, the body of the band saw blade 29 is positioned between the fixed grip 95 and the movable grip 97, and then the grip cylinder 101 is operated.
By moving the cylinder body of the grip cylinder 101 and the movable grip 97 in a direction approaching the fixed grip 95 via the guide member 99, the body portion of the band saw blade 29 can be gripped by the fixed grip 95 and the movable grip 97. it can. Further, the grip cylinder 101 is operated to move the cylinder body and the movable grip 97 to the fixed grip 95.
The gripped state can be released by moving the gripping state in a direction in which the gripping state is separated.

A saw blade holding device 103 for holding the left and right body portions of the band saw blade 29 is provided on each support plate 91 of each stock portion 87.

More specifically, referring to FIGS. 5, 11 and 12, arcuate holding surfaces are provided at the left and right (left and right in FIGS. 5, 11 and 12) end portions of the support plate 91. The former 105 is provided movably in the left-right direction via the guide member 106, and the former 105 on the right side is biased by the spring 107 in the right direction and the former 105 on the left side by the spring 107. The former 105 holds the band saw blade 29 under the action of an electromagnetic magnet, for example.

The former 105 in each stock section 87
The former actuating device 109 for moving in the left and right directions moving toward and away from each other will be described. A swinging link 111 swingable about a swinging center 111c is provided in the central portion of the support plate 91, and the left side former is formed. A connecting link 113 connected to 105 and a connecting link 115 connected to the right former 105 are connected to appropriate positions of the swing link 111 via elongated holes. Here, the connecting links 113 and 115 are configured to be substantially parallel.
In order to swing the swing link 111 in the left-right direction, an operation link 119 is movably provided in the left-right direction via a slider 120 on a guide member 117 provided on the base of the left support arm 89. The right end of the link 119 is connected to an appropriate position of the swing link 111 via an elongated hole. Then, when the appropriate stock portion 87 is located at a position corresponding to the saw blade housing 13, the operation cylinder 121 for moving the operation link 119 in the appropriate stock portion 87 in the left-right direction is provided at the appropriate position of the saw blade housing 13. It is provided in. Here, the position corresponding to the saw blade housing 13 means a position in a vertical state as shown in FIG. 10, for example.

With the above structure, under normal conditions, the pair of formers 105 in each stock portion 87 is urged in the direction of being separated by the action of the spring 107,
It is open.

After the stock base 77 is lowered integrally with the elevating frame 71 and the appropriate stock portion 87 is positioned at a position corresponding to the saw blade housing 13,
By moving the operation link 119 to the right by the operation of the operation cylinder 121, the swing link 111 can be swung clockwise in FIGS. 5 and 12 about the swing center 111c. Therefore, the connecting link 113 can be moved in the right direction and the connecting link 113 can be moved in the left direction, and the pair of formers 105 can be brought close to each other to be in the closed state.

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

Gripper device 9 in stock section 87
3. The band saw blade 29 is operated by appropriately operating the saw blade holding device 103.
The band saw blade 29 can be stocked in the stock portion 87 by gripping and holding the. The above operation is also performed in the other stock section 87, and a plurality of band saw blades 29
To stock. At least one stock section 87
Keeps the band saw blade 29 in an empty state in which it is not stocked, and uses this empty stock portion 87a (for convenience, the symbol a is used,
The components in the empty stock portion 87a are also appropriately denoted by the reference character a) and are located at the vertically lower position in FIG. Then, after stocking the plurality of band saw blades 29 in the plurality of stock portions 87, the lifting cylinder 75 is actuated to raise the lifting frame 71 to the rising end, and the plurality of stock portions 87 are positioned above the saw blade housing 13. I will keep it.

The saw blade housing 1 is provided with a plurality of stock portions 87.
After being positioned above 3, the work transfer device 49, the saw blade housing 13 and the like are appropriately operated as described above to perform a desired cutting process on the workpiece W. When the saw blade housing 13 moves up and down, the saw blade housing 13
Does not interfere with the stock portion 87.

A drive wheel 19 on the saw blade housing 13,
When replacing the band saw blade 29a attached via the driven wheel 27 (for convenience, the reference numeral is used to distinguish the band saw blade 29 before and after the replacement) and the band saw blade 29 stocked in the stock portion 87 as appropriate Will be described.

First, the operation of the elevating cylinder 17 causes the operation of FIG.
The saw blade housing 13 is raised to the rising end as shown in FIG. In addition, as shown in FIG.
Then, the band saw blade 29a in the twisted state is returned to the original state, and the one guide roller 35 is separated from the other guide roller 35 to be in the open state.

Then, the control motor 81 is drive-controlled to rotate the rotary shaft 79 and the support pipe 83 at a predetermined angle (for example, 10 degrees in this embodiment), whereby the empty stock portion 87a is rotated counterclockwise in FIG. Turn only 10 degrees in the direction. The empty stock portion 87a is turned counterclockwise in FIG. 8 by, for example, 10 degrees so that the empty stock portion 87a does not interfere with the saw blade housing 13 when the stock portion 87 descends. This is because

Then, the lifting cylinder 75 is operated to lower the lifting frame 71 to the lower end, thereby lowering the stock portion 87. When the elevating frame 71 approaches the lower end, the control motor 81 is drive-controlled to rotate the rotary shaft 79 and the support pipe 83 in the clockwise direction in FIG.
Turn a by 4 degrees clockwise in FIG.
As a result, the empty stock portion 87a can be positioned at a position close to the rear side (right side in FIG. 9) of the saw blade housing 13.

The empty stock portion 87a is attached to the saw blade housing 1
3, the drive motor 81 is controlled to drive the control motor 81 to rotate the empty stock portion 87a clockwise, for example, by 6 degrees in FIG. Make it vertical. As a result, the plurality of gripper devices 93a of the empty stock portion 87a are attached to the band saw blade 2
9a can be located at a position where it can be held and the saw blade holding device 103a can be located at a position where it can hold the band saw blade 29a. Then, the gripper device 9
Fixed grip 95a and movable grip 97a in 3a
The band saw blade 29a is gripped by, and as shown in FIGS. 11 and 12, the former actuating device 109a is appropriately operated to bring the pair of formers 105a close to each other to hold the band saw blade 29a.

The band saw blade 29 is formed by the pair of formers 105a.
After holding a, as shown in FIG. 13, the fluid pressure cylinder 25 is operated to move the driven wheel 27 to the drive wheel 1.
9 is moved to the left (closer to the right in FIG. 13) to form a gap between the left peripheral surface of the driven wheel 27 and the band saw blade 29a. After forming a gap between the left peripheral surface of the driven wheel 27 and the band saw blade 29a, the transfer cylinder 85 is actuated to slightly move the support pipe 83 and the former 105a to the right so that the right peripheral portion of the drive wheel 19 is rotated. A gap can also be formed between the surface and the band saw blade 29a. As a result, the band saw blade 29a can be easily detached from the drive wheel 19 and the driven wheel 27.

After the band saw blade 29a is easily detachable, the control motor 81 is drive-controlled to move the stock portion 87a counterclockwise in FIG. 8 (for example, 6 degrees) as shown in FIG. By turning the wheel 19,
The band saw blade 29a can be detached from the blade 27, and the stock portion 87a moves away from the position corresponding to the saw blade housing 13 to move the pair of formers 105a in the left-right direction. Then, the control motor 81 is drive-controlled to rotate the stock portion 87a counterclockwise in FIG. 14, for example, 10 degrees, and as shown in FIG. Then, the plurality of stock portions 87 are positioned above the saw blade housing 13.

After elevating the elevating frame 71 to the ascending end, as shown in FIG. 16, the control motor 81 is drive-controlled to move the appropriate stock portion 89 from the vertically lower position in FIG. 16 to the counterclockwise direction in FIG. For example, 10 in the direction of rotation
Position it in a position where it turns only once. Then, the elevating frame 71 and an appropriate stock portion 87 are lowered by the operation of the elevating cylinder 75, and when the elevating frame 71 approaches the lower end as shown in FIG. 17, the stock portion 87 is rotated clockwise in FIG. The appropriate stock portion 87 can be positioned at a position close to the rear side (the right side in FIG. 17) of the saw blade housing 13 by turning only once.

An appropriate stock portion 87 is attached to the saw blade housing 1
After being positioned at a position close to the rear side of 3, the appropriate stock portion 87 is turned clockwise in FIG. 18 to a substantially vertical state as shown in FIG. As a result, the band saw blade 29 is attached to the drive wheel 19 and the driven wheel 27.
It can be positioned so that it can be hung around. In addition,
At this time, a gap is formed between the right peripheral surface of the drive wheel 19 and the band saw blade 29 and between the left peripheral surface of the driven wheel 27 and the band saw blade 29.

As shown in FIG. 19, the transfer cylinder 85 is actuated to move the former 105 in the appropriate stock portion 87 to the left (to the right in FIG. 19) to move the right peripheral surface of the drive wheel 19 and the band saw. Blade 2
The gap between 9 is eliminated and the driven wheel 27
By moving the to the right, the gap between the left peripheral surface of the driven wheel 27 and the band saw blade 29 can be eliminated. As a result, the band saw blade 29 can be hooked around the drive wheel 19 and the driven wheel 27.
It should be noted that, after the band saw blade 29 is hooked, the gripping state of the gripper device 93 is released, so that an appropriate stock portion 87 is obtained.
The band saw blade 27 can be detached from the. Further, the pair of formers 105 in the appropriate stock portion 87 do not approach each other as shown in FIG. 21, and remain in the open state.

21 and 22 after the band saw blade 29 is wound around the drive wheel 19 and the driven wheel 27.
As shown in (4), an appropriate stock portion 87 is turned and raised together with the lifting frame 71.

Finally, as shown in FIG. 23, the wire brush 39 is lowered, one guide roller 35 is brought close to the other guide roller 35 to be in the closed state, and the roller supporting member 37 is rotated to rotate the band saw. The blade 29 is twisted approximately 90 degrees so that the cutting edge is oriented perpendicular to the material W to be cut.

As described above, according to this embodiment, a plurality of band saw blades 29 can be stocked at the upper position of the saw blade housing 13, so that the factory space can be effectively used.

Next, the second embodiment will be briefly described. The second embodiment uses a saw blade holding device 123 having a structure different from that of the saw blade holding device 103, and the other structures are almost the same as those of the first embodiment.

Explaining the saw blade holding device 123, right and left (left and right in FIGS. 24 and 25) of the support plate 91 in each stock portion 87 are provided with arcuate holding surfaces as in the former 105. Former 12
5 are movably provided in the left-right direction via the guide members 127. The left-side former 125 (only the right-side former 125 is shown in FIG. 25) is in the right direction, and the right-side former 125 is in the left direction. It is urged by the action of 129. Support arm 1 provided with rotatable rollers 131 at appropriate positions of left and right formers 125
Roller guides 135 for guiding appropriate rollers 131 are provided at appropriate positions on the left and right sides of the saw blade housing 13 so as to be movable in the left and right directions by the operation of the fluid pressure cylinder 137. Then, a position where the appropriate stock portion 87 corresponds to the saw blade housing 13, that is, FIG.
When it is located in the vertical position as shown in FIG.
35.

With the above construction, under normal conditions, the pair of formers 125 are in an open state separated from each other, and when the appropriate stock portion 87 is located at a position corresponding to the saw blade housing 13, as shown in FIG. The rollers 131 are guided by the guide rollers 135, and the pair of formers 125 moves in the direction of separating against the biasing force of the springs 129.
By operating the fluid pressure cylinder 137, the pair of formers 125 can be moved in the approaching direction.

The second embodiment has the same operation and effect as those of the first embodiment.

The present invention is not limited to the above description of the embodiments, but can be implemented in various other modes by making appropriate changes.

[0054]

As can be understood from the above description of the embodiments, according to the present invention, a plurality of band saw blades can be stocked at a position above the saw blade housing, so that the space in the factory can be effectively used. Can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of a band saw machine.

FIG. 2 is a front view of a band saw machine.

FIG. 3 is a right side view of the band saw machine.

FIG. 4 is a plan view of a band saw machine.

FIG. 5 is an enlarged view of a saw blade stock device.

FIG. 6 is an operation explanatory view.

FIG. 7 is an operation explanatory view.

FIG. 8 is an operation explanatory view.

FIG. 9 is an operation explanatory view.

FIG. 10 is an operation explanatory view.

FIG. 11 is an operation explanatory view.

FIG. 12 is an operation explanatory view.

FIG. 13 is an operation explanatory view.

FIG. 14 is an operation explanatory view.

FIG. 15 is an operation explanatory view.

FIG. 16 is an operation explanatory view.

FIG. 17 is an operation explanatory view.

FIG. 18 is an operation explanatory view.

FIG. 19 is an operation explanatory view.

FIG. 20 is an operation explanatory view.

FIG. 21 is an operation explanatory view.

FIG. 22 is an operation explanatory view.

FIG. 23 is an operation explanatory view.

FIG. 24 is a view showing a saw blade holding device which is an essential part of the second embodiment.

FIG. 25 is a view showing a saw blade holding device which is a main part of the second embodiment.

[Explanation of symbols]

 1 band saw machine 3 base 13 saw blade housing 29 band saw blade 67 saw blade stock device 77 stock base 79 rotating shaft 83 support pipe 87 stock section

Claims (2)

[Claims] 1. A saw blade housing is provided on a base, and a traveling saw-driving band saw blade is detachably attached to the saw blade housing, and a stock base is raised and lowered with respect to the base at a position above the saw blade housing. A rotatable member extending in the longitudinal direction of the saw blade housing is rotatably provided on the stock base, and a plurality of stock portions for stocking the band saw blade are radially provided on the rotatable member. Band saw machine. 2. The band saw machine according to claim 1, further comprising saw blade replacement means for replacing the band saw blade mounted on the saw blade housing with the band saw blade stocked in an appropriate stock portion. .