JPS6346421Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a device for transferring a long workpiece (for example, wood) processed by a first processing machine toward a second processing machine. It is.

(Prior art) Conventionally, as shown in FIG. 11 and FIG.
Between the first vertical conveyor 1 disposed at the exit of the processing machine A and the second vertical conveyor 2 disposed at the entrance of the second processing machine B, there is a conveyor in the direction of these conveyors. A plurality of horizontal feed free roller conveyors 3 are arranged in parallel at predetermined intervals, and a lifter device 4 is provided on the first vertical feed conveyor 1 side to horizontally lift the workpiece W on the conveyor to a predetermined height. , the workpiece W lifted by this lifter device 4
A predetermined number of pusher cylinders P are arranged in parallel to push out the lateral feed along the free roller conveyor 3, while a standby position that hits the stopper member 17 at the exit of the free roller conveyor 3 is provided on the second vertical conveyor 2 side. A lifter moving device 9 is provided for horizontally lifting a workpiece W by a predetermined height and moving it onto a second vertical conveyor.

(Problems to be Solved by the Invention) In the above-described conventional system, the workpiece W on the first vertical conveyor 1 is transferred to the horizontal free roller conveyor 3 by a predetermined number of pusher cylinders P.
Due to the structure in which a predetermined number of workpieces W are stocked on the conveyor 3 by sequentially extruding them upward, the frontmost workpiece W on the lateral free roller conveyor 3 is
It is difficult to accurately move the workpiece W in parallel to the standby position where it hits the stopper member 17 at the outlet of the lateral free roller conveyor 3 and push it out, and the lateral feeding of the workpiece W to the standby position at the outlet of the lateral free roller conveyor 3 has to be done manually. The problem was that I had to rely on Furthermore, when the lengths of the workpieces W are different, especially when the short workpiece W is extruded first and the long workpiece W is extruded later, the 11th
As shown in the figure, there was also a problem in that the long workpiece W was tilted, thereby reducing the stock space on the traverse free roller conveyor 3.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, this invention provides a first vertical conveyor disposed at the exit of the first processing machine and a second processing machine. a second vertical conveyor disposed at the entrance of the machine; a plurality of horizontal free roller conveyors arranged in parallel between the first and second vertical conveyors; and the first vertical conveyor. a lifter device disposed on the conveyor side and horizontally lifting the workpiece on the conveyor by a predetermined height; and a lifter device disposed on the second vertical conveyor side and at a standby position at the exit of the horizontal free roller conveyor. a lifter moving device that horizontally lifts the workpiece by a predetermined height and moves it onto the second vertical conveyor; Engaging with one side of the workpiece lifted by the lifter device on the vertical conveyor side of No. 1 and sliding the workpiece onto the horizontal free roller conveyor until it reaches a standby position where it hits a stopper member at the exit of the conveyor. a plurality of cross-feeding devices each having a moving member to be moved on a straight line orthogonal to the cross-feeding direction; a lifting mechanism that lifts and lowers the cross-feeding devices;
When the workpiece comes into contact with the stopper member, a load of a predetermined value or more acting on the moving member is detected, and based on this, the elevating mechanism is actuated to lower the traversing device, thereby increasing the load on the workpiece. The detection means for releasing the engagement of the moving member is configured.

(Function) In the transfer device configured as described above,
A workpiece on the first longitudinal conveyor is transversely conveyed onto the transverse free roller conveyor by means of a moving member of a crossfeeding device arranged parallel to each transverse free roller conveyor. Then, when the workpiece is traversely transported to a standby position where it abuts a stopper member at the exit of the traversal free roller conveyor, and a load of a predetermined value or more is applied to the moving member, the lifting mechanism is activated based on the detection by the detection means. , whereby the traversing device is lowered, thereby releasing the engagement of the moving member with the workpiece. In this way, by horizontally feeding the workpieces on the first vertical conveyor sequentially in parallel onto the horizontal free roller conveyor, it is possible to align the workpieces of different lengths and shorts in parallel without any gaps, and to It is possible to reliably transport the workpiece at the front end to the standby position where it abuts the stopper member.

(Example) An example of this invention will be described below with reference to the drawings.

In FIG. 1, which shows the transfer device in plan, there is a first vertical conveyor 1 at the exit of the first processing machine A.
is arranged at the entrance of the second processing machine B.
A second vertical conveyor 2 is disposed opposite to the vertical conveyor 1 at a predetermined distance. These first and second vertical conveyors 1 and 2 are parallel to the vertical conveying direction (left and right direction in FIG. 1).
A large number of drive rollers are arranged at predetermined intervals between a pair of frames.

Between the first vertical conveyor 1 and the second vertical conveyor 2, a plurality of horizontal free roller conveyors 3 to 3 are arranged at predetermined intervals in the vertical direction of these conveyors 1 and 2. It is set up. Each of these lateral free roller conveyors 3 to 3 has a large number of free rollers rotatably arranged at predetermined intervals between each pair of frames parallel to the lateral feeding direction (vertical direction in FIG. 1). That's what happens.

A predetermined number of lifter devices 4 to 4 are disposed on the first vertical conveyor 1 side to horizontally lift the workpiece W on the vertical conveyor 1 to a predetermined height. As shown in FIGS. 2 and 3, these lifter devices 4 are supported so as to be movable up and down via a parallel link mechanism 6 on one side of a support stand 5 that supports the first vertical conveyor 1. , and is mainly composed of a substantially T-shaped elevating member 8 that is simultaneously raised and lowered by one lift cylinder 7. The upper surface of each of these elevating members 8 always forms the same plane, and when each elevating member 8 is raised to the rising end by the lift cylinder 7, the upper surface of each elevating member 8 is the same as that of the first vertical conveyor 1. It protrudes from the transfer surface by a predetermined height and is set to be approximately flush with the transfer surface of the traverse free roller conveyor 3.

On the side of the second vertical conveyor 2, the workpiece W, which has been horizontally conveyed to the standby position at the exit of the horizontal conveyor free roller conveyor 3, is lifted horizontally by a predetermined height. A predetermined number of lifter moving devices 9 are provided to move the lifters up to the top of the vertical conveyor 2. As shown in FIGS. 2 and 7, these lifter moving devices 9 are supported so as to be movable up and down via a parallel link mechanism 11 on one side of a support stand 10 that supports the second vertical conveyor 2. and the lifting members 13 that are raised and lowered simultaneously by one lift cylinder 12, and these lifting members 13.
One slide cylinder 15 is connected via an interlocking link mechanism 14 so as to be slidable in the traverse direction with respect to the upper surface.
The main body is a slide member 16 that is slid at the same time by. The upper surface of the slide member 16 in each elevating member 13 is always the same plane, and the upper surface of each elevating member 13 is always the same plane.
3 rises to the rising end, the upper surface of the slide member 16 protrudes by a predetermined height from the transfer surface of the lateral free roller conveyor 3, and the stopper member 1 disposed at the exit of the lateral free roller conveyor 3
It is set so that the workpiece W can pass over the area 7. Furthermore, the horizontal movement stroke of the slide member 16 in each lifting member 13 is set to a stroke that is sufficient to move the workpiece W in the standby position at the exit of the horizontal free roller conveyor 3 to the top of the second vertical conveyor 2. has been done.

Each of the above-mentioned horizontal feed free roller conveyors 3 to 3
In between, the workpiece W lifted by the lifter device 4 on the side of the conveyor 1 is moved onto the lateral feed free roller conveyor 3, and then a plurality of lateral conveyors are used to traverse the workpiece W while sliding it on the conveyor. A feeding device 18 is provided.

To explain each of the above-mentioned horizontal conveyance devices 18 in detail according to FIG. 2, FIG. 3, and FIG. An elevating frame 21 having a length spanning the exit of the feed free roller conveyor 3 is supported on its left and right support legs 21a, 21b by a pair of left and right parallel link mechanisms 22, 23 so as to be movable up and down. Each of these elevating frames 21 is simultaneously lifted and lowered by one lift cylinder 24, and both driving and driven chain sprockets 2 are provided at both ends of each elevating frame 21.
5 and 26 are each rotatably supported.
An endless roller chain 2 is located between the driving and driven sprockets 25 and 26 of each lifting frame 21.
7 are stretched respectively, and these roller chains 27
At a predetermined position on the upper side, a moving member 28 that can be engaged with one side of the workpiece W is connected to each roller chain 27.
It is arranged integrally with the traverse feed direction and on a line perpendicular to the traverse feed direction. (See FIG. 1) When each lifting frame 21 is at the rising end, the workpiece W lifted by the lifter device 4 on the first vertical conveyor 1 side and the workpiece W on the horizontal free roller conveyor 3 When each moving member 28 is engaged with the workpiece W and each lifting frame 21 is at the lower end, each moving member 28 can pass below the workpiece W on the traverse free roller conveyor 3. The vertical stroke of each vertical frame 21 is set as follows. Further, each time the workpiece W is lifted by the lifter device 4 on the first vertical conveyor 1 side, each lifting frame 21 rises,
Thus, when a load of a predetermined value or more is applied to the moving member 28, each elevating frame 21 is set to descend.

The drive sprocket 25 in each of the above-mentioned elevating frames 21 is connected to a drive shaft 29 rotatably supported between the elevating frames 21 to 21.
The moving members 28 are connected via a chain mechanism 30 and the like, and the moving members 28 are aligned on a straight line perpendicular to the traverse direction and move at the same speed.

Further, the drive shaft 29 is connected to each elevating frame 21 to 2.
1, it is linked to a drive motor 31 disposed on one of the elevating frames 21 via a chain mechanism 32 or the like. Further, at a predetermined position of the elevating frame 21, there is a tension arm 35 having a tension sprocket 34 at its tip for applying a predetermined tension to the chain 33 of the chain mechanism 32. It is swingably supported and biased in the tension direction by a spring 37. When a load of a predetermined value or more is applied to each moving member 28, the tension arm 35 is moved by the spring 37.
resisting the urging force of the second
In the figure, it rotates clockwise. By rotating the tension arm 35 clockwise, the limit switch 38 is actuated to stop the drive motor 31, and at the same time, the lift cylinder 24 of each elevating frame 21 is actuated to lower each elevating frame 21. It is configured as follows.

In the transfer device of this embodiment configured as described above, when the workpiece W is sent out from the first processing machine A, the first vertical conveyor 1 is activated,
The workpiece W is vertically conveyed by the conveyor 1 to a predetermined position. Note that after that, the first vertical conveyor 1 stops.

When the workpiece W is vertically fed to a predetermined position by the first vertical conveyor 1, the workpiece W on the conveyor 1 is moved by the lifter device 4, as shown in FIG. It is lifted up to the height of the lateral free roller conveyor 3. Then, in each traversing device 18, each elevating frame 21 is raised by the lift cylinder 24, and almost at the same time, the drive motor 31 is activated and the roller chain 27 is driven. Then, when the moving members 28 on the roller chain 27 reach the workpiece W lifted by the lifter device 4 and each moving member 28 engages with one side of the workpiece W, after that, each moving member 28 After the workpiece W is transversely fed to the transverse free roller conveyor 3, it slides on the conveyor 3 and is transversely fed in parallel toward the exit of the conveyor 3.

When the workpiece W is transversely fed to a predetermined position on the transverse free roller conveyor 3 by each moving member 28, as shown in FIG.
A limit switch 40 is actuated by one of the moving members 28 among the moving members 28, and the signal from the limit switch 40 causes the lifter device 4 on the first vertical conveyor 1 side to descend to its original lowered position.

Thereafter, the workpiece W that is traversed by each moving member 28 while sliding on the lateral free roller conveyor 3 hits the stopper member 17 at the exit of the lateral free roller conveyor 3, as shown in FIG. When the moving member 28 is moved horizontally in parallel to the standby position, a load of a predetermined value or more is applied to the moving member 28. Then, a tension of a predetermined value or more acts on one side of the chain 33 that connects the drive motor 31 and the drive shaft 29, and as a result, the tension arm 35 resists the biasing force of the spring 37. , and pin 3
6 as a fulcrum, it rotates clockwise in Fig. 2,
Activate limit switch 38. In response to the signal from the limit switch 38, the drive motor 31 is stopped, and at the same time, each lifting frame 21 is lowered to its original lowering end position by the lift cylinder 24 of the traversing device 18, and the moving member relative to the workpiece W is moved. 28 is disengaged.

When the moving member 28 is disengaged from the workpiece W, the tension arm 35 is rotated counterclockwise in FIG. 2 by the biasing force of the spring 37, and the drive motor 31 is activated. Then, each moving member 28
As shown in FIG. 6, the machine passes below the workpiece W and moves toward the first vertical conveyor 1, and near the conveyor 1, the limit switch 39 is activated and the drive motor 31 is activated. make it stop.

The workpieces W sequentially sent out onto the first vertical conveyor 1 from the first processing machine A are sequentially fed horizontally in parallel onto the horizontal free roller conveyor 3 as described above. As shown in FIG. 1, they are stored on the free roller conveyor 3 in a lined manner without any gaps.

As described above, the workpieces W stored on the horizontal free roller conveyor 3 are sequentially transported horizontally onto the second vertical conveyor 2 in the following manner. It is fed vertically towards processing machine B.

First, the lift cylinder 12 of the lifter moving device 9 is activated by a signal from the second processing machine B.
As each slide member 16 rises to the rising end together with each lifting member 13, the workpiece W at the standby position on the traverse free roller conveyor 3 is lifted horizontally to a height position exceeding the stopper member 17. . In this state, each slide member 16 slides laterally along the upper surface of the elevating member 13 by the slide cylinder 15, thereby causing the workpiece W to move as shown in FIG. is horizontally moved above the second vertical conveyor 2. Then, as shown in FIG. 8, each lifting member 13 is lowered to its original lowering end by the lifting cylinder 12 of the lifter moving device 9, and at the same time, each slide member 16 is lowered. Thereafter, each slide member 16 is slid by the slide cylinder 15 to its original position.

By lowering each slide member 16, the second
The workpiece W is placed on the vertical conveyor 2, and when the second processing machine B is ready to receive the workpiece W, the second vertical conveyor 2 is driven, and the workpiece W on the conveyor 2 is driven. The workpiece W is vertically fed toward the second processing machine B.

When the workpiece W in the standby position at the exit of the cross-feed free roller conveyor 3 is moved to the top of the second conveyor 2 as described above, each cross-feed device 1
The lifting frame 21 of No. 8 rises, and the drive motor 31
is activated. As shown in FIG. 9, each moving member 28 moving together with the roller chain 27 moves up to the last workpiece W among the predetermined number of workpieces W to W stored on the traverse free roller conveyor 3. After the moving members 28 engage one side of the workpiece W, the moving members 28 laterally move the predetermined number of workpieces W to W. Then, the workpiece W at the forefront end is the stopper member 1.
When the moving member 28 is laterally moved to the standby position corresponding to No. 7, a load of a predetermined value or more is applied to the moving member 28, and as described above, the drive motor 31 is stopped, each lifting frame 21 is lowered, and the rearmost workpiece is moved. The engagement of the moving member 28 with W is released. Thereafter, as shown in FIG. 10, each moving member 28 passes below the workpiece W and moves to the vicinity of the first vertical conveyor 1, and then stops.

In addition, in the above embodiment, each lateral feed device 1
The moving member 28 is placed on the roller chain 27 of 8.
Although one each is provided, two or more may be provided. However, the moving member 28 of each traversing device 18 is arranged on a line perpendicular to the traversing direction.

(Effect of the invention) That is, according to this invention, the workpiece on the first vertical conveyor is moved laterally by the moving member of the cross-feeding device arranged parallel to each cross-feeding free roller conveyor. The workpieces are sequentially fed parallel to each other on the free roller conveyor to line them up without any gaps, and the workpiece at the forefront of the free roller conveyor is always placed in a waiting position at the exit of the free roller conveyor. Unlike conventional methods, the worker can manually move the workpiece to the standby position of the cross-feeding free roller conveyor. By arranging the workpieces on the conveyor without gaps, the stock space can be maximized.

[Brief explanation of drawings]

The drawing shows one embodiment of this invention.
The figure is a plan view showing the entire transfer device, Figure 2 is a cross-sectional view taken along the - line in Figure 1, and Figure 3 is an operation showing the state in which the workpiece on the first vertical conveyor is lifted by the lift device. Figure 4 is an operation diagram showing the state in which the workpiece is being fed horizontally to a predetermined position on the horizontal feeding free roller conveyor by the horizontal feeding device, and Figure 5 is an operation diagram showing the state in which the workpiece is being fed horizontally by the horizontal feeding device. FIG. 6 is an operation diagram showing a state in which the cross-feeding device is moved horizontally to a standby position at the exit of the free roller conveyor; FIG. Fig. 7 is an operation diagram showing a state in which the workpiece in the standby position on the horizontal free roller conveyor is moved horizontally to the top of the second vertical feed conveyor by the lifter moving device, and Fig. 8 shows the workpiece in the standby position on the horizontal free roller conveyor. FIG. 9 is an operation diagram showing the state in which the workpieces are placed on the vertical conveyor of No. 2, and FIG. FIG. 10 is an operation diagram showing a state in which the traversing device is lowered due to a load of a predetermined value or more acting on the moving member of the traversing device.
Figures 11 and 12 show the conventional one;
The figure is a plan view, and FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11. 1... First vertical conveyor, 2... Second vertical conveyor, 3... Horizontal free roller conveyor, 4... Lifter device, 9... Lifter moving device,
18...Transverse feed device, 28...Moving member, W...
processed product.

Claims (1)

[Scope of utility model registration request] a first vertical conveyor disposed at the exit of the first processing machine; a second vertical conveyor disposed at the entrance of the second processing machine; and the first and second vertical conveyors. a plurality of horizontal free roller conveyors arranged in parallel between the conveyors; a lifter device disposed on the side of the first vertical conveyor and horizontally lifting the workpiece on the conveyor to a predetermined height; Second
a lifter moving device disposed on the vertical conveyor side and horizontally lifting a workpiece at a standby position at the exit of the horizontal free roller conveyor by a predetermined height and moving it onto the second vertical conveyor; It is disposed parallel to the lateral free roller conveyor and can be raised and lowered, and when ascending, the first
engages with one side of the workpiece lifted by the lifter device on the vertical conveyor side and moves the workpiece to a standby position where it hits a stopper member at the exit of the conveyor while sliding the workpiece on the horizontal free roller conveyor. a plurality of cross-feeding devices each having a moving member on a straight line perpendicular to the cross-feeding direction; a lifting mechanism that raises and lowers the cross-feeding device; and a moving member when the workpiece abuts the stopper member. detecting means for detecting a load of a predetermined value or more acting on the workpiece and actuating the elevating mechanism based on this to lower the traversing device to release the engagement of the moving member with the workpiece. A transfer device featuring: