JPH0427602Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to a band saw machine, and more specifically, the above
This invention relates to a band saw machine equipped with a saw hooking/unhooking device that allows the band saw to be easily hooked/unloaded onto a lower saw wheel.

[Conventional technology]

A conventional band saw machine, as described in Japanese Patent Publication No. 55-22242, has a lower saw wheel formed at the lower end of the frame so as to be rotated by an electric motor, and a vertical sliding surface at the upper end of the frame. A reciprocating band saw is installed between the upper saw wheel attached to a bracket that moves up and down.

When attaching and detaching the band saw, the distance between the upper saw wheel and the lower saw wheel is varied by moving the bracket up and down with respect to the sliding surface of the frame, and the band saw can be attached or removed by hand. are doing.

[The problem that the invention attempts to solve]

However, since the reciprocating band saw machine uses a band saw with two teeth, manual operation by humans is extremely dangerous, and the teeth of the band saw can sometimes cause damage to the upper and lower saw wheels.

Additionally, as band saws become larger, the distance between the upper saw wheel and the lower saw wheel increases, making the band saw longer and heavier, making it difficult to move it smoothly by hand, and making it difficult to remove it. A similar problem arises in the case of

[Purpose of invention]

The object of this invention is to provide a band saw machine that is equipped with a saw hooking and unhooking device that can safely and smoothly hook and unload the band saw between an upper saw wheel and a lower saw wheel.

[Summary of the idea]

In order to achieve the above object, the device for sawing and unhooking a bandsaw machine of this invention is provided with a setting box in which a swinging arm having a suction tube is engaged on the saw line between the upper saw wheel and the lower saw wheel, and the setting box A first pressure cylinder is provided for moving a connecting rod with a connecting rod attached thereto in a direction perpendicular to the saw line, and a second pressure cylinder moves a band saw mounted on a saw mount that can be moved in the vertical direction from the saw mount to the above-mentioned saw line. The setting box is attached to the suction cylinder and moved between the upper saw wheel and the lower saw wheel, or the band saw attached to the saw wheel is removed.

[Example of idea]

As shown in FIGS. 1a and 2b, and FIGS. 2a and 2b, the device for sawing a band saw machine of this invention has a lower saw wheel 17 mounted on a bed 2 disposed below a frame 1 with a bearing 3. A bracket 9 having a sliding rod 8 is fixed to one side of a saddle 7 which is moved up and down via a piston 6 when a handle 5 attached to the side of the frame 1 is turned, and a bracket 9 having a sliding rod 8 is fixed to one side of the saddle 7. Bracket 10, pin 1
The second pressure cylinder 12 is attached through the screw 1, and installed on the sliding frame 15 by means of a nut 13 and a pin 14.

Further, an upper saw wheel 4 is rotatably attached to a bearing 16 attached to the saddle 7, and a protective plate 1 is attached on the circumference.
Attach the stop bracket 2 to the saw mounting base 19 provided with 8.
0 is attached and a pedestal 21 provided on the sliding frame 15.
Make sure that the stop bracket 20 fits into the stop bracket 20. Then, the sliding frame 15 has a saw line D-
The sliding rod 8 of the bracket 9 is configured to slide along a line EE' parallel to D'. By doing this, if the sliding frame 15 slides, the pedestal 21
Saw mount 1 with upper stop bracket 20
When the bandsaw a on 9 coincides with the line F-F' perpendicular to the saw line D-D', the stopper 2 is moved so that the sliding frame 15 stops.
Adjust position 2.

A setting box 23 is then placed on the saw line D--D' and is engaged with the first pressure cylinder 26 via the connecting rod 24 and bracket 25 to secure the first pressure cylinder 26 to the mounting bracket 27. Furthermore, the setting box 23 is engaged with the guide rod 28, and the bearing 3 is inserted through the brackets 29, 30 and pins 31, 32.
3 and 34, it is installed on the mounting bracket 27.

Further, swing arms 35 and 36 are provided inside the setting box 23 and are symmetrical with respect to the C-C' line, and several suction tubes 37 and 38 are engaged with the tips of the swing arms 35 and 36, respectively. and,
An L-shaped lever 40 is engaged with one end of the swing arms 35 and 36 via a pin 39, and a lever 42 is attached to the other end via a pin 41 with pins 43 and 4.
4, it is installed in the setting box 23. moreover,
A pressure cylinder 47 is placed from the lever 40 via a pin 45 and a nut 46, and is attached to the setting box 23 by a cylinder bracket 48. Accordingly, the swing arm 36 is also set up in the same manner as described above and is provided with a pressure cylinder 49.

As shown in FIGS. 3a and 3b to FIG. 5, when the lever 40 moves, the levers 40 and 42 move via the pins 43 and 44, so the swing arm 35 moves between the pins 43 and 44. The suction tube 37 attached to the tip of the swinging arm 35 is configured to swing all the way down to the protection plate 18 of the saw mount 19.

The suction tube 37 is made of a well-known large glass glass suction and transportation device, and is configured to generate suction force inside the tube. Therefore, the suction tube 38 of the swing arm 36 also operates in the same manner as the swing arm 35, and the setting box 23 is configured to slide on the guide rod 28, and the setting box 23 is configured to slide along the saw line D. −
It is configured so that it comes to rest when it moves from D' and comes to the line E-E'.

The symbol W in Fig. 1a and b is a weight suspended from the tip of the band saw tension arm Y.
The right end of the arm Y is configured to firmly move the upper saw wheel 4 upward via a lever shaft Z and a tension rod R, thereby tightly tensioning the band saw a.

[Effect of invention]

The sawing device for a band saw machine of this invention is constructed as described above, and the operation for sawing off the band saw in this band saw machine will be described below.

The operation explanatory diagram in Fig. 6a shows the state before the upper saw wheel 4 of the band saw machine tensions the band saw a, and the operation explanatory diagram in Fig. 1a and 2
The upper saw wheel 4 is located at the lower position as shown in FIGS. When the second pressure cylinder 12 is inserted and the second pressure cylinder 12 is operated, the sliding frame 15 moves along the sliding line of the bracket 9 along the line E-E' parallel to the saw line D-D'. The movable rod 8 is slid so that the band saw a is aligned with the line F-F' which is orthogonal to the saw line D-D'. That is, the sliding frame 15
stopper (stop valve) so that the
22 is installed, the sliding frame 15 is guided by the sliding rod 8 of the bracket 9 through the nutcle 13 and the pin 14, and moves up along the E-E' line parallel to the saw line D-D'. 1b and 2b, it comes to rest against the stopper 22 as shown in FIGS. Therefore,
The band saw a on the protection plate 18 of the saw mounting base 19 has a saw line D-
It coincides with the F-F' line perpendicular to D'.

Then, when the pressure cylinder 26 is operated as shown by the arrow in FIG. When it moves and comes to the line E-E', it stops, and the setting box 23 is connected to the bracket 25 and the connecting rod 2.
The guide rod 28 is slid through the guide rod 4 and comes to rest on a line E-E' parallel to the saw line D-D'.

Therefore, since the swing arms 35 and 36, which are provided symmetrically to the C-C' line, are also built into the setting box 23, they move together with the setting box 23 and are located on the E-E' line. . That is, as shown in FIG. 2b, the suction cylinders 37 and 38 of the swing arms 35 and 36 are positioned above the head of the band saw a.

Here, when the pressure cylinders 47, 49 are operated as shown in FIG. 3b and FIG. Since the swinging arms 35 and 36 move and descend to the protection plate 18 of the saw mounting base 19, the swinging arms 35 and 3
6 descends using the pins 43 and 44 as fulcrums, and the suction cylinder 3
7 and 38 come into pressure contact with the bandsaw a on the protection plate 18 and come to rest.

Since the suction cylinders 37 and 38 are configured to generate suction force inside the suction cup, when the suction cylinders 37 and 38 suction the bandsaw a and operate the pressure cylinders 47 and 49 again, As shown in FIGS. 3a and 6e, the suction cylinders 37 and 38 of the swinging arms 35 and 36 leave the protection plate 18 while being suctioned to the bandsaw a and move up along the E-E′ line, and the pressure cylinders 47 , 49 is activated.

Subsequently, when the pressure cylinder 26 is operated again, the setting box 23 moves from the line E-E' to the saw line D-D' as shown by the arrow in FIG. 6F while holding the band saw a. Move to. That is, since the band saw a moves onto the upper saw wheel 4 together with the suction cylinders 37 and 38 of the swing arms 35 and 36, the swing arms and suction cylinders 37 and 38 are lowered as shown in Fig. 6g. After that, when the suction cylinders 37 and 38 are shielded from the suction force by well-known means, the bandsaw a moves away from the suction cylinders 37 and 38 and moves to the sixth position.
It hangs on the upper saw wheel 4 as shown in Figure h.

Thereafter, the upper saw wheel 4 is raised and the band saw a is tensioned by increasing the mass of the weight W, thereby making it possible to saw lumber.

The sawing operation of the bandsaw machine of this invention follows the above-mentioned process, but the sawing operation is the reverse operation. In other words, band saw a is F-
The first pressure cylinder 26 is activated after it coincides with line F', and when the setting box 23 is on line E-E', the pressure cylinders 47 and 49 are activated. Since it is configured so that it operates again, the bandsaw a can be turned into the E-
After moving from line E' to saw line D-D', it is set between upper saw wheel 4 and lower saw wheel 17.

[Effect of idea]

As described above, this invention provides a setting box that engages a swinging arm with a suction cylinder on the sawing line between the upper saw wheel and the lower saw wheel, and connects the connecting rod to which the setting box is attached to the sawing line. A first pressure cylinder that moves in a perpendicular direction is provided, and a band saw hung on a saw mount that can be moved vertically by a second pressure cylinder is adsorbed from the saw mount to the suction tube to generate upper and lower saws. Since the band saw hooked to the car or the saw wheel can be removed by moving the setting box, manual labor is required to hang the band saw between the upper and lower saw wheels and to remove the band saw from both saw wheels. Since it can be done without cutting, it can be done safely and quickly, and has the advantage of not damaging the saw wheel.

[Brief explanation of the drawing]

The figures show one embodiment of this invention; Figures 1a and b are front views of a bandsaw machine equipped with a sawing device; Figure 2a is a partially cutaway side view; Fig. 2b is a side view of a partially cut away state with some mechanisms in operation, Figs. 3a and b are enlarged front views of the main parts of the sawing device, and Fig. 4a is a A plan view taken along line A-A' in Figure a, Figure 4b is the same as Figure 3a.
FIG. 5 is a plan view of the main part of the device shown in FIG. 2b, and FIGS. 6a to 6h are explanatory views of the operation. 4... Upper saw wheel, 12... Second pressure cylinder, 17... Lower saw wheel, 19... Saw mounting base, 2
3... Setting box, 24... Connecting rod, 26... First pressure cylinder, 35, 36... Swinging arm, 3
7,38...Adsorption cylinder, a...Band saw, D-D'...
Saw line, F-F'...direction perpendicular to the saw line.

Claims (1)

[Scope of utility model registration request] Swinging arms 35, 3 having suction tubes 37, 38 on the sawing line D-D' between the upper saw wheel 4 and the lower saw wheel 17;
6 is provided, and the setting box 23 is engaged with the setting box 23.
a first pressure cylinder 2 for moving the connecting rod 24 with attached thereto in a direction F-F' perpendicular to the saw line D-D';
6 is provided, and a band saw a hung on a saw mount 19 that can be moved vertically by a second pressure cylinder 12 is attracted to the suction cylinders 37 and 38 from the saw mount 19, and the upper saw wheel 4 and the lower saw A device for sawing and unhooking a band saw machine, characterized in that the band saw a, which is hooked to the wheel 17 or hooked to the saw wheels 4 and 17, is removed by moving the setting box 23.