JPH0447585B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for conveying a pachinko machine board, which is applied to assembly work on a pachinko machine board.

(Conventional technology) When assembling a pachinko machine board (hereinafter referred to as a gauge board), especially when attaching accessories and back mechanism parts, a worker places nails, bands, etc. on the board surface on a simple conveyor installed in the work area. , and a gauge plate with stitches etc. attached, and press it by hand.
The gauge plate is sent out to the position of the installation worker who is waiting at regular intervals. When the gauge plate is sent to the worker who has been waiting at the accessory attachment position, the worker attaches the accessory to a predetermined position on the gauge plate and pushes the gauge plate by hand to send it to the next worker's position. After attaching all the accessories in this way, turn the gauge plate over, with the back side of the gauge plate facing up, and then attach the back mechanism parts. The procedure used was to send each back mechanism part one after another to the worker's standby position and install it, and after all the back mechanism parts were installed, the gauge plate was lowered from the conveyor.

(Problems to be Solved by the Invention) Most of the work for installing the above-mentioned accessories and back mechanism parts is done manually, and it is cumbersome that the same worker carries out both the conveyance of the gauge plate and the installation of the parts at the same time. It was hot. As a result, if the timing of the work was not right, the worker's hand could be injured or the gauge plate could be damaged. Moreover, there was a problem in that worker efficiency was lower in this type of work than in other types of work.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for conveying a pachinko machine board, which solves the above-mentioned problems by automatically conveying a pallet on which a gauge plate is placed.

(Means for Solving the Problems) As a means for solving the above-mentioned problems, the present invention provides a method for conveying a pachinko machine board surface by placing a gauge plate with the surface side up on a pallet conveyed by a conveyor. a step of transporting the pallet to a working position for attaching accessories to the surface of the gauge plate, and a step of placing the pallet horizontally to the pallet while holding the gauge plate with the accessories attached from the sides. a step of inverting the gauge plate with the back side facing up after raising it to a predetermined position; a step of placing the inverted gauge plate on the pallet with the back side facing up; and a step of inverting the gauge plate. This process is performed by transporting the pallet to a working position where back mechanism parts are attached to the back side of the gauge plate, and picking up the gauge plate with the back mechanism parts attached from the pallet and taking it out from the conveyor system.

The specific equipment that realizes this transportation method is
An accessory attachment line for attaching the front side parts of the gauge plate and a back mechanical parts attachment line for attaching the back side parts of the gauge plate are arranged in series on a conveyor system for conveying the gauge plate through a pallet. , a clamp device is provided on the downstream side of the accessory attachment line and upstream of the back mechanism component attachment line for removably clamping the gauge plate to which the front side component is attached from the side; a lifting unit for raising and lowering the gauge plate thus clamped in a horizontal state with respect to the pallet; and a gauge plate reversing device for turning over the gauge plate lifted by the lifting unit with respect to the pallet. , and a gauge plate take-out device was installed downstream of the back mechanism component attachment line.

(Function) According to the above configuration, the present invention places a gauge plate with its surface facing upward by a gauge plate supply device onto a pallet conveyed by a conveyor, and conveys the pallet with the gauge plate placed thereon to an accessory attachment line. Accessories are attached to the gauge plate on the accessory installation line, the pallet with the gauge plate with the accessory attached is transported to the gauge plate reversing device, the gauge plate is reversed and placed on the pallet by the gauge plate reversing device, and then the gauge plate is placed on the pallet. The pallet is transported to the back mechanical parts installation line, the back mechanical parts are attached to the back side of the gauge plate on the back mechanical parts installation line, the pallet with the gauge plate with the back mechanical parts attached is transported to the gauge plate take-out device, and the gauge plate is removed. By taking out the gauge plate on the pallet using the plate take-out device, the transport work is made more efficient, and the chances of directly handling the gauge plate are reduced, reducing injuries to workers and damage to the gauge plate. will be able to reduce

Further, since the sides of the gauge plate are clamped by the clamping device, the clamping device does not damage the components already attached to the gauge plate. Further, since the elevating unit raises and lowers the gauge plate in a horizontal state with respect to the pallet, it suppresses the impact applied to the gauge plate when the gauge plate moves up and down, especially when the gauge plate is placed on the pallet as it descends. Furthermore, the gauge plate reversing device reverses the gauge plate lifted by the lifting unit by 180 degrees with respect to the pallet, so that various jigs, instruments, devices, etc. near the conveyance path are removed from the gauge plate and the attached front side. Prevent collisions with parts.

(Example) Hereinafter, illustrated embodiments of the present invention will be described.

1 is a conveyor system, conveyor system 1
is for conveying a gauge plate 15 via a pallet 13 which will be described later. Conveyor system 1
As shown in FIG. 1, the accessory attachment line 2 forms a circulation type and is used to attach front side parts (accessories etc.) of the gauge plate 15 to the conveyor system 1;
Two rows of back mechanism component attachment lines 3 for attaching back side components of the gauge plate 15 are linearly arranged, and each end is connected by a curved portion bent by 180 degrees.
Between the accessory attachment line 2 and the back mechanism component attachment line 3, one end of each adjacent side is connected to a curved part bent by 90 degrees, and a straight part is provided between each curved part,
A gauge plate reversing device 4 is installed in this straight portion.
Another straight line is provided in parallel with this straight line and the gauge plate supply device 5 is installed, and the straight line where this gauge plate supply device 5 is installed and the back side of the accessory attachment line 2 and the side opposite to the mechanical component attachment line 3 side. Connect one end of the line located at 90 degrees with a curved part. On the other end side of this straight portion, a gauge plate take-out device 6 is arranged at a position corresponding to the intersection with the terminal end of the back mechanism component attachment line 3. A roller conveyor is used for the straight portion of the conveyor system 1, and a chain conveyor is used for the curved portion. A belt conveyor 7 for carrying out assembled gauge plates is installed on the side of the gauge plate take-out device 6 opposite to the gauge plate supply device side.

As shown in FIG. 2, the accessory attachment line 2 and the back mechanism component attachment line 3 are constructed by installing a frame 9 with two stages of component shelves 8 between two linearly arranged conveyor systems 1. An electric light 10 is hung above the working position to brighten the area.

At each working position of the conveyor system 1, a positioning device 14 is disposed on a pallet 13 provided with a stopper 11 with a damper and a movable pin 12 for position fixing, as shown in FIGS. 3 and 4. The damper-equipped stopper 11 absorbs the movement energy of the pallet 13 in the conveyor system 1 and smoothly stops it in a fixed position.It has a pneumatic retraction single-acting drive unit and feeds out the pallet as necessary. Use what you can. The damper-equipped stopper 11 has a roller section provided at the top that contacts the front and bottom portions of the pallet 13 and rotates and swings, and the lever section that supports the roller section in a clockwise direction from its initial vertical position. to 20
It is installed at an angle of inclination, and from this state it sinks up to about 75 degrees clockwise when passing the pallet, and moves about 20 degrees counterclockwise when buffering. The position fixing movable pin 12 consists of a vertically erected air cylinder and a position fixing pin connected to the cylinder rod.
A necessary number of the plates are placed at locations directly below the position fixing holes provided in the pallet 13.

As shown in FIGS. 5 and 6, the gauge plate supply device 5 provided on the upstream side of the accessory attachment line 2 is
A clamping device 16 that clamps the gauge plate 15 loaded on the trolley at the top one, a lifting unit 17 that moves the clamping device 16 up and down, and a lifting unit 17 that moves the clamping device 16 and the lifting unit 17 along the indoor rail 18 toward the trolley side. A moving unit 19 is provided for moving the conveyor from the conveyor. In this gauge plate supply device 5, the moving unit 19 is operated to move the gauge plate 15 clamped by the clamp device 16 to a position directly above the pallet 13 stopped on the conveyor, and then the lifting unit 17 is operated to move the gauge plate 15 to the pallet 13. Place the gauge plate 15 on top and clamp the clamp device 1.
The gauge plate 15 is supplied by releasing the grip of the gauge plate 6. When the gauge plate 15 is placed on the pallet 13, it is detected by the photoelectric detection device 20 disposed on the frame side of the gauge plate supply device 5, and the pallet 13 is stopped and sent out.

The gauge plate reversing device 4 installed between the accessories attachment line 2 and the back mechanical parts attachment line 3 is placed on a pallet 13 stopped at a predetermined position, as shown in FIGS. 7 and 8. A clamp device 21 that removably clamps the gauge plate 15 to which front parts such as accessories are attached from both sides.
A lifting unit 22 is provided at the top to move the pallet up and down horizontally with respect to the pallet 13, and the clamping device 2
The reversing device 23 that clamps both ends of the gauge plate 15 lifted by the gauge plate 1 and inverts the gauge plate 15 after releasing the clamping device 21 from the clamp device 21 is connected to the gauge plate 1.
5 is rotated and placed at a height that does not touch the upper structure and the pallet 13, and a photoelectric sensor 24 for detecting the presence or absence of the gauge plate 15 placed on the pallet 13 is attached to the frame side. The gauge plate 15 clamped by the clamp device 21 in the gauge plate reversing device 4 is lifted up to the axial center position of the reversing device 23 by operating the lifting unit 22, and the clamp portions of the reversing device 23 are attached to both ends of the lifted gauge plate 15. 23a is extended and clamped, and after the clamping device 21 is released from clamping, the reversing drive section 23b using the swing cylinder of the reversing device 23 is activated, the clamping section 23a is rotated, and the gauge plate 15 is reversed. The gauge plate 15 is clamped again by the clamp device 21, and the clamp portion 23a of the reversing device 23 is shortened, so that the gauge plate 1
After the clamping of the gauge plate 5 is released, the elevating unit 22 is operated to place the gauge plate 15 on the pallet 13, and the clamping of the clamp device 21 is released. At this time, the gauge plate reversing device 23 moves the gauge plate 15 lifted by the lifting unit 22 onto the pallet 13.
In other words, it is flipped 180 degrees. When the clamping device 21 is released, the photoelectric sensor 24 detects that the gauge plate 15 has returned and gives an instruction to send out the pallet 13, and the damper-equipped stopper 11 sends it out.

As shown in FIGS. 9 and 10, the gauge plate take-out device 6 installed at the intersection of the downstream side of the back mechanism parts attachment line 3 and the upstream line of the straight line provided with the gauge plate supply device 5 is used to attach the back mechanism parts. A direction change device 25 is provided to load and stop the pallet 13 conveyed from the installation line 3, and above the direction change device 25, the pallet 13 is transferred from the belt conveyor 7.
Traveling clamp device 2 for transferring gauge plate 15 to
6 is placed. The direction changing device 25 is provided with a damper-equipped stopper 11 on the terminal end side of a roller conveyor 27 rotatably provided on a table.
The tip of the cylinder rod of a rotating air cylinder 29 whose cylinder body is fixed to the base side is rotatably connected to the lower part of the cylinder. The traveling clamp device 26 includes a traveling rodless air cylinder 28 provided on the frame side.
A clamp lifting/lowering unit 31 is provided which runs along a running guide rod 30 arranged parallel to the gauge plate 15, and a clamping device 32 is provided at the lower end of the clamp lifting/lowering unit 31 to clamp both ends of the gauge plate 15. In this gauge plate take-out device 6, when the pallet 13 is carried into the roller conveyor 27, the pallet 13 is stopped by the damper-equipped stopper 11, the clamp lifting unit 31 is operated to lower the clamp device 32, and the lowered clamp device 32 removes the gauge plate. 1
5, the clamp device 32 is raised, the traveling rodless air cylinder 28 is activated, the clamp elevating unit 31 is moved to the belt conveyor 7 side, and the gauge plate 15 is moved from the pallet 15 side to the belt. Move to the conveyor 7 side, lower the clamping device 32 again to place the gauge plate 15 on the belt conveyor 7, and release the clamping of the gauge plate 15 by the clamping device 32.
is transported to the next process side as the belt moves. When the gauge plate 15 is clamped by the clamp device 32 and raised and separated from the pallet 13, the photoelectric sensor 33 disposed on the frame body side detects it and activates the rotating air cylinder 29 to move the roller conveyor 27.
Rotate 90 degrees, align the moving direction of the roller conveyor 27 with the straight line provided with the gauge plate supply device 5 of the conveyor system 1, send out the pallet 13 from the roller conveyor 27 by the stopper 11 with a damper, and turn the rotating air cylinder 29. The roller conveyor 27, which is emptied by reverse operation, is aligned with the back mechanism component attachment line 3 and returned to its initial state.

Gauge plate 1 using this conveyor system 1
In order to attach accessories and back mechanism parts to the gauge plate supply device 5, a plurality of pallets 13 are conveyed on the conveyor system 1, and the pallets 13 that have reached the installation position of the gauge plate supply device 5 are moved to the stopper 11 with a damper.
The movable pin 12 for fixing the position of the pallet 13 is extended and inserted into the fixing hole provided in the pallet 13, and the pallet 13 is fixed in position. The gauge plates 15 stacked with their surfaces facing upward at a predetermined position in the gauge plate supply device 5 are clamped by the clamp device 16, lifted by the lifting unit 17, and moved to the moving unit 19 to the position where the pallet 13 on the conveyor is stopped. The moving unit 19 is stopped directly above the pallet 13, and the lifting unit 17 lowers the gauge plate 15.
When the gauge plate 15 is placed on top of the pallet 13, the clamping of the gauge plate 15 by the clamp device 16 is released and the clamp device 16 is raised to a height that does not hinder the movement of the pallet 13.

When the pallet 13 on which the gauge plate 15 is placed is sent out by the damper-equipped stopper 11, the pallet 13 is conveyed along the conveyor path and goes to the accessory attachment line 2. When the pallet 13 reaches the working position on the accessory attachment line 2, it is stopped by a damper-equipped stopper 11. When the pallet 13 stops, a worker performs the work of attaching the necessary accessories, and sends the pallet 13 to the work position where the next worker is waiting. When all the accessory attachment work is completed and the pallet 13 is sent out, the pallet 13 is conveyed along the conveyor path and conveyed to the installation position of the gauge plate reversing device 4. The pallet 13 that has reached the gauge plate reversing device 4 is stopped by a damper-equipped stopper 11. Palette 13
When the pallet 13 stops, the pallet 13 is fixed in position by the position fixing movable pin. After fixing the position of the pallet 13, the lifting unit 22 operates and the clamping device 21
is lowered to clamp the gauge plate 15. At this time, the gauge plate 15 is held by the clamp device 21 not on the front or back side, but on the side.
The clamping device 21 will not damage the parts and the gauge plate whose front side parts have already been attached to the gauge plate 15. Next, the gauge plate 15 is moved to the reversing device 23.
The clamp part 23a is raised to the standby position, and the reversing device 23 is activated to remove the clamp part 23a.
After clamping the gauge plate 15 with a and releasing the clamping of the clamp device 21, the reversing drive unit 2 of the reversing device 23
3b to turn the gauge plate 15 over so that the back side faces upward. The gauge plate reversing device 23 reverses the gauge plate 15 lifted by the lifting unit 22 by 180 degrees with respect to the pallet 13, so that various jigs, instruments, devices, etc. near the conveyance path and the gauge plate 15 and the attached Collisions with front parts (accessories, etc.) are prevented. After reversing, the gauge plate 15 is clamped by the clamping device 21, the clamping part 23a of the reversing device 23 is released, and the lifting unit 22 is
is activated to lower the clamp device 21 and place the gauge plate 15 on the pallet 13. Since the lifting unit 22 raises and lowers the gauge plate 15 horizontally with respect to the pallet 13, when the gauge plate 15 moves up and down, the pallet 1
3, the impact applied to the gauge plate 15 is suppressed. After the gauge plate 15 is placed on the pallet 13, the clamping of the clamp device 21 is released, and the lifting unit 22 raises the clamp device 21 to a position where it does not interfere with the conveyance of the pallet 13.
After the clamping device 21 is raised, the pallet 13 is sent out by the damper-equipped stopper 11, and the pallet 13 is conveyed to the back mechanical parts attachment line 3 along the conveyor path.

The pallet 13 conveyed to the back mechanical parts installation line 3 is stopped by the damper-equipped stopper 11 at the working position, and the operator stops the pallet 13 at the stopped position.
The back mechanism parts are attached to the upper gauge plate 15 and sent to the next working position. When the pallet 13 is sent out after all the back mechanism parts have been attached, it is conveyed along the conveyor path and carried into the gauge plate take-out device 6.

When the pallet 13 is carried into the direction changing device 25 by the gauge plate take-out device 6, the damper-equipped stopper 11
As a result, the pallet 13 is stopped, and the clamp lifting/lowering unit 31 of the traveling clamp device 26 is operated to lower the clamp device 32 so that the gauge plate 15 is clamped by the clamp device 32. The clamp device 32 holding the gauge plate 15 is raised by the clamp lifting unit 31, and the traveling clamp device 26 is moved from the pallet 13 side to the belt conveyor 7 side by the traveling rodless air cylinder 28, and is positioned on the belt conveyor 7. Then, the clamp device 32 is lowered by the clamp lifting unit 31,
The gauge plate is placed on the belt conveyor 7 and the clamping device 32 is released. On the other hand, the direction change device 25
After the gauge plate 15 is lifted, it is rotated 90 degrees by the operation of the rotating air cylinder 29, and the moving direction is aligned with the straight line where the gauge plate supply device 5 is disposed, and the empty pallet 13 is lifted by the damper-equipped stopper 11. send out. The empty pallet 13 is conveyed on a conveyor and conveyed to the gauge plate supply device 5.

In this way, in this embodiment, the pallet 13 can be automatically transported, and the transport of the gauge plate 15 during the parts mounting work does not burden the operator, thereby improving work efficiency. Gauge plate 1 directly during parts installation work
Injuries to workers can be reduced by transporting the pallet 13 without transporting the pallet 5, and since the gauge plate 15 is protected by the pallet 13, damage to the gauge plate 15 during transport can be prevented.

(Effects of the Invention) As described above, the present invention is a conveyance method and device for automatically conveying gauge plates using a special pallet for placing them. The burden placed on conveying the plate is reduced, work efficiency is improved, injuries to workers can be reduced, and damage to the gauge plate during conveyance of the gauge plate can be prevented. Furthermore, since the sides of the gauge plate are clamped by the clamping device, the clamping device does not damage the parts already attached to the gauge plate, thereby reducing the incidence of defects. Furthermore, since the lifting unit raises and lowers the gauge plate horizontally with respect to the pallet, the impact applied to the gauge plate is suppressed when the gauge plate moves up and down, especially when the gauge plate is placed on the pallet as it descends. As a result, displacement of the gauge plate relative to the pallet can be minimized, and conveyance accuracy can be stabilized. Furthermore, the gauge plate reversing device inverts the gauge plate 180 degrees with respect to the pallet and turns it over, so that the gauge plate and the attached front parts are
Since collisions with various jigs, instruments, and devices near the conveyance path are prevented, damage to the gauge plate and attached front side parts can be suppressed.

[Brief explanation of drawings]

FIG. 1 is a plan view of a conveying device according to the present invention, and FIG.
The figures are a sectional view taken along the - line in Fig. 1, Fig. 3 is an explanatory plan view showing the pallet positioning device according to the present invention, Fig. 4 is an explanatory side view showing the pallet positioning device according to the present invention, and Fig. 5 is an explanatory side view showing the pallet positioning device according to the present invention. 6 is a front view showing the gauge plate feeding device according to the present invention, FIG. 7 is a side view showing the gauge plate reversing device according to the present invention, and FIG. 8 is a side view showing the gauge plate feeding device according to the present invention. A front view showing a gauge plate reversing device according to the invention,
FIG. 9 is an explanatory side view showing the gauge plate take-out device according to the present invention, and FIG. 10 is a front explanatory view showing the gauge plate take-out device according to the present invention. DESCRIPTION OF SYMBOLS 1... Conveyor system, 2... Accessory attachment line, 3... Back mechanism parts attachment line, 4... Gauge plate reversing device, 5... Gauge plate supply device, 6... Gauge plate take-out device, 7... Belt conveyor, 9...
Frame body, 11... stopper with damper, 13... pallet, 14... pallet positioning device.

Claims (1)

[Claims] 1. A step in which a gauge plate is placed with its surface facing upward on a pallet conveyed by a conveyor, and a step in which the pallet is conveyed to a work position for attaching a front part to the surface of the gauge plate. and a step of lifting the gauge plate with the front side parts attached from the sides to a predetermined position in a horizontal state with respect to the pallet, and then inverting the gauge plate with the back side facing upward, and the inverted gauge. a step of placing the plate on the pallet with the back side facing upward; a step of transporting the pallet to a working position for attaching back mechanism parts to the back side of the gauge plate placed upside down; and a step of transporting the pallet to a work position where back mechanism parts are attached to the gauge plate with the back mechanism parts attached. A method for conveying a pachinko machine board, comprising the steps of picking up a board from a pallet and taking it out from a conveyor system. 2 Arrange an accessory attachment line and a back mechanism component attachment line in series in the conveyor system, install a gauge plate supply device upstream of the accessory attachment line, and install the back mechanism component attachment line downstream of the accessory attachment line. On the upstream side of the parts mounting line, there is a clamping device for removably clamping the gauge plate with the front side parts attached from the side, and the gauge plate clamped by the clamping device is attached to the pallet. An elevating unit for elevating the gage plate to a horizontal state and a gage plate reversing device for reversing the gage plate lifted by the elevating unit with respect to the pallet are installed. A conveyance device for a pachinko machine board, characterized in that a gauge plate take-out device is installed at the top.