JPH01123747A - Carrying apparatus - Google Patents

Abstract

PURPOSE:To automatically feed materials and take out finished products, by intermittently driving a conveyor, a feed hand and a take-out hand in response to signals of each sensor. CONSTITUTION:A photosensor 64 is placed in a chute 4 so as to detect dropping or slippage of a material B. And a photosensor 65 is provided at a printing table 20 so as to detect the presence or absence of the material B or a product G. Moreover, in each of cylinder means 6, 10, 15, 23 and 28 and rotary cylinder means 11 and 24, there are provided limit switches S-1, S-2,... so as to stop driving thereof through detection of the limit position of strokes and rotating angles of each piston rod 8, 12, 17, 25 or 30. The signals from these limit switches and photosensors 64 and 65 are inputted respectively to a sequencer as an example of a controller.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a conveying device that sequentially supplies materials to a processing position and takes out processed products at this processing position. The present invention relates to a conveying device suitable for carrying out various operations.

(Prior Art and its Problems) Screen printing machines are generally used to print characters, etc. on the panels of headphone stereos, televisions, video players, and the like.

Incidentally, in the past, both the supply of materials to the screen printing machine and the removal of processed products from the screen printing machine were performed manually.

However, if materials are supplied and processed products are taken out manually in this way, there are problems in that work efficiency is poor and labor costs increase.

(Object of the Invention) In view of the above-mentioned points, an object of the present invention is to provide a conveyance device that can automatically supply materials and take out processed products.

[Summary of the invention]

The present invention provides a conveyor that sequentially conveys materials, a chute that slides the materials down from the end of the conveyor, a supply hand that is arranged to be able to rotate and move up and down and supplies the material that has slid down the chute to a processing position, and a conveyor that can rotate and A take-out hand that is arranged to be movable up and down and takes out processed products from a processing position, a plurality of sensors that detect the positions of the supply hand and the take-out hand, and another sensor that detects material that has slipped from the conveyor into the chute. It is composed of a sensor and a controller that intermittently drives the conveyor, supply hand, and take-out hand based on signals from each of these sensors.

According to the present invention having such a configuration, when one material is supplied from the conveyor to the chute, the sensor detects this material and outputs a signal to the controller, and the controller stops driving the conveyor and transfers the material to the next one. In addition to blocking the supply of material to the chute, the supply hand supplies the material that has slipped down the chute to the processing position, and after processing is performed at this processing position, the processed product can be taken out from the processing position using the take-out hand. Therefore, materials can be automatically supplied, processed automatically, and processed products can be automatically taken out.

[Embodiments of the invention]

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 shows a silk screen printed cargo 1 to which a conveying device according to the present invention is applied, and this silk screen printing device t11 has a belt conveyor 2 for horizontally conveying material B. ing.

The belt 3 of this belt conveyor 2 is run in the direction shown by the arrow by a motor (not shown).
In FIG. 1, material B is sequentially supplied onto the belt 3 at the right end position of the belt 3 by a robot (not shown) or by hand. At the left end of the belt conveyor 2, a chute 4 whose upper surface 4a is formed into a downward slope is arranged adjacent to the chute 4, so that the material B conveyed on the belt 3 is transferred to the chute 4. It has become.

A first cylinder device 6 extending vertically is supported on the machine frame 5 adjacent to the chute 4, and a piston rod 8 projects upward from the upper end of the cylinder 7 of the first cylinder device 6. ing.

A pedestal 9 protrudes from the upper end of the piston rod 8, into which the material IB can be fitted. are positioned so that they can fit together.

A second cylinder device 10 extending vertically is supported on the machine frame 5 diagonally above the first cylinder device 6.
A first rotary cylinder device @11 is integrally supported at the bottom of the second cylinder device 10. A common piston rod 12 of the second cylinder device 10 and the first rotary cylinder device 11 projects upward from the upper end of the cylinder 13 of the second cylinder device 10, and this piston rod 12 is used for driving the second cylinder device 10. It is raised and lowered by the cylinder and rotated by the drive of the first rotating cylinder device 11.

A support member 14 is supported at the upper end of the piston rod 12, and a third cylinder device 15 extending laterally is attached to the support member 14. From the cylinder 16 of this third cylinder device 15, the piston 0 and 1
7 protrudes laterally, and a holding cylinder device 18 is attached to the tip of this piston rod 17 to hold the material B by holding it with a holding tool.

'The holding cylinder device 1ff18 faces onto the printing table 20 of the screen printing machine 19. This screen printing machine 19 has the printing table 20 that can be raised and lowered by a drive mechanism (not shown), and a pedestal 20A that stably holds the material B is attached to the printing table 20. A silk screen 21 is fixedly disposed above this printing table 20 in a horizontal plane, and further above this silk screen 21 is welded to the top surface of the silk screen 21 to allow ink to pass through the lux screen 21. A squeegee 22 for pushing the paper downward and printing is disposed so as to be able to reciprocate horizontally by a drive mechanism (not shown).

The screen printing machine 19 is placed in the center, and the machine frame 5 on the opposite side of the second cylinder device 10, first rotary cylinder device 11, third cylinder device 15, etc. has vertical cylinders similar to the second cylinder device 410. A fourth cylinder device 23 extending in the direction is supported, and a second rotary cylinder device 24 is integrally supported at the lower part of the fourth cylinder device 23. The common piston rod 25 of the fourth cylinder device 23 and the second rotary cylinder device 24 is raised and lowered by the drive of the fourth cylinder device @23, and
It is rotated by driving a rotating cylinder device 24. A support member 27 similar to the support member 14 is supported at the upper end of this piston rod 25.
A fifth cylinder device 28 extending laterally is attached to this support member 27 . This fifth cylinder neck 2
A piston rod 30 protrudes laterally from the cylinder 29 of No. 8, and a holding cylinder device 31 for holding the printed product G is attached to the tip of the piston rod 30, similar to the holding cylinder device 18. It is being On the opposite side of the printing table 20 with the fourth cylinder device 23 placed in the center, the products G are arranged on the 1-lay 32 in an aligned manner. A product discharge I station 33 is provided for placing the product. As shown in FIGS. 2 and 3, the product discharge device 33 has a plurality of parallel beams 34, 34 supported by the machine frame 5 (FIG. 1). An angle support member 35 extending in a direction perpendicular to the beams 34 is placed and fixed on these beams 34.

At one end of this angle support member 35, a plate-shaped bracket 36 and a plate-shaped bracket 37 spaced apart from this bracket 36 are supported in parallel. A motor 38 is attached, and its output shaft 39 extending in the horizontal direction is supported by a bearing 40 formed on the bracket 36-. The angle support member 35 has two other plate-shaped brackets 41° 4 spaced apart from the bracket 36 in the horizontal direction.
2 is supported, and a drive pulley 4 is supported on the output shaft 39.
3, a driven pulley 44 is supported on the bracket 41, and a tension pulley 45 is supported on the bracket 42 so as to be arranged in the same vertical plane. An endless timing belt 46 is wound around these drive pulley 43, driven pulley 44, and tension pulley 45.

Two guide rails 47 and 47 are supported on the plurality of beams 34 in parallel with the angle support member 35 and spaced apart from each other in the horizontal direction.
A rectangular shape with a guide sleeve 49 fitted on the bottom surface! A 2i plate 51 is disposed so as to be movable along the idle rail 47. A connecting plate 5 whose tip end faces above the timing belt 46 is disposed on the side where the a placement plate 51 is positioned.
At the tip of this connecting plate 52, a clamping plate 53 is provided which is connected to the upper surface of the timing bell 1-46. A clamping plate 54 that is connected to the lower surface of the timing bell 1-46 is attached to this clamping plate 53.
By connecting both ends of the timing belt 46, the timing belt 46 is held between the placing plate 53 and the holding plate 54, and therefore, as the timing belt 1-46 runs, the placing plate 5
1 follows along both guide rails 47.

The tray 32 is placed on the placement plate 51 i2? Narrow auxiliary placing plates 55 and 56 on which the placing plate 51 is placed auxiliary are protruding from the front and rear of the placing plate 51. At the tip of one of the auxiliary placement plates 56, a positioning stopper 57 that communicates with one end of the 1 to 32 rays 32 is provided to protrude upward. In addition, the above-mentioned placement plate 5
1 is supported by two wooden guide rods 58, 58 of equal length protruding equally on both sides, each guide rod 5
Disc-shaped stoppers 59 and 59 for positioning that come into contact with both sides of the tray 32 are screwed onto the tip of the tray 8 .

On the plurality of beams 34, another angle support member 60 is arranged parallel to the angle support member 35 along the lower side edge of the mounting plate 51 in the movement range of the mounting plate 51, The tray 3 is fixed to the angle support member 60.
Six roller-shaped limit switches, 5-18°, 8-19, . . . , are protruded at equal intervals along the moving direction of the device. On the other hand, a protrusion 62 is provided on the bottom surface of the mounting plate 51 so as to be able to come into contact with each limit switch S as the mounting plate 51 moves. Note that the distance between the adjacent pair of limit switches S, S is equal to the length of the products G placed on the tray 32 in an aligned manner with a gap between them. It is formed so that it can be adjusted to a size including the interval between G's. Further, a photosensor 63 for detecting the presence or absence of the tray 32 on the @ shield plate 51 is attached to the beam 34. Further, the holding cylinder device 31 of the fifth cylinder device 28 is
The piston rod 30 of the cylinder device 28 faces onto one end of the mounting plate 51 at its maximum contraction position.

Returning to FIG. 1, a photosensor 64 is attached to the chute 4 to detect when the material B slides down along the inclined surface 4a of the chute 4. In addition, the printing table 2
0 is attached with a photosensor 65 that detects the presence or absence of material B or product G on the pedestal 2OA.

Furthermore, each cylinder device 6.10.15.23.28 and each rotary cylinder device 11.24 are driven by detecting the stroke and rotation angle limit positions of each piston rod 8.12.17.25, 30. Limit switches S-1, 8-2, etc. are provided to stop the
Signals from these limit switches, each of the limit switches S, and the photosensors 63, 64, and 65 are input to a sequencer, which is an example of a controller (not shown). and,
This sequencer sequentially drives the belt conveyor 2, each cylinder device 6, 10, 15, 23, 28, each rotary cylinder device 11, 24, screen printer 19, motor 38, etc.

Next, the operation of this embodiment will be explained.

Place the tray 32 at a predetermined position on the placement plate 51 in advance, and turn on the main switch of the sequencer (not shown).
If N, the sequencer outputs an initialization (return to origin) signal to each device, and each device is initialized by this signal. Note that even if the sequencer outputs an initialization signal to each device, if all the devices are not initialized after a predetermined period of time has elapsed, the failure lamp lights up.

With all the devices initialized in this way, a plurality of materials B, B, etc. are supplied automatically or manually onto the belt 3 of the belt conveyor 2 in an aligned manner, and when the start button is turned on, the belt 3 is the first
It travels in the direction of the arrow in the figure, causing the material B located at the end of the belt 3 to slide down along the inclined surface 4a of the chute 4.

Then, the photo sensor (J64) detects the material B sliding down along the inclined surface 4a and stops the belt conveyor 2. On the other hand, the material B sliding down along the inclined surface 4a is detected by the piston of the first cylinder device 6. The timer of sequence V measures a predetermined time (several seconds) from the time when the material B is fitted into the pedestal 9 protruding from the rod 8 and the A sensor 64 detects the material B.
When the period has elapsed, the first cylinder device 6 is driven and the pedestal 9 is moved.
The second cylinder device 10 and the first
[i'il rotating cylinder device 11 is rotated and the holding cylinder device 18 supported by the third cylinder device 15 is lowered while rotating, and while the holding cylinder device 18 is being lowered, the third cylinder device 15 is also driven. The holding cylinder device 18 is located directly above the pedestal 9 to hold the material B on the pedestal 9.
is held by the holding cylinder device 18. Then, the first cylinder device 6 whose uppermost limit switch S-2 has been activated is released, and the piston rod 8 is lowered together with the pedestal 9 until the limit switch S-1 is activated.
Waits for the next material B.

On the other hand, the holding cylinder device 18 of the third cylinder device 15
holds material B, the photosensor 65 confirms that there is no material B or product G on the pedestal 2OA of the printing table 20, and then the second cylinder device 10 and the first rotary cylinder device 11 are moved in the opposite direction. It is driven in the direction and rises while rotating. Then, the uppermost limit switch S-3 of the second cylinder device 10 is activated, and the limit switch S-6 at the rotation limit position of the first rotary cylinder device 11 is activated, so that After the third cylinder device 15 is positioned at a predetermined position, the piston rod 1 is moved until the third cylinder device 15 is driven and the limit switch S-8 is activated.
7 and attach the holding cylinder device 18 to the printing table 2.
Place it directly above 0's pedestal 2OA. Then, the second cylinder device 10 is driven again and the piston rod 8 is lowered until the lowest limit switch S-4 is activated, and the third cylinder device 10 is driven again.
For holding the cylinder device 15 - IJFIB held in the cylinder device 18 is placed on the pedestal 20 of the printing table 20.
Fit into A.

Next, the second cylinder device 10 is re-driven to raise the holding cylinder device 18 until the uppermost limit switch S-3 is activated, and then the third cylinder device 15 is raised until the limit switch S-7 is activated. is driven to shorten the piston rod 17 together with the holding cylinder device 18.
Close. When the printing table 20 rises and stops so as to come into contact with the silk screen 21 by the side of the printer (not shown), the squeegee 22 is moved onto the silk screen 21.
The printing table 20 moves back and forth so as to join the materials B, prints on the material B to form the product G, and then, when the printing table 20 descends, the second rotary cylinder device 24 switches the limit switch 5-
The piston rod 3 of the fifth cylinder device 28 is driven until the piston rod 13 is activated and is supported by the piston rod 25.
The holding cylinder device 31 located at the tip of the printing table 20 is positioned in the direction of the pedestal 2OA of the printing table 20. Then,
The piston rod 30 is extended until the fifth cylinder device r128 is driven and the limit switch 5-16 is activated, and the holding cylinder device 31 is attached to the pedestal 2 of the printing table 20.
Display it on OA. Then, the second rotating cylinder device 24 is driven and the lowest limit switch 5-11 is activated.
The holding cylinder device 30 is lowered until it operates, and the product G is held by the holding cylinder device 31. The invasion,
until the top glue mitt switch 5-10 is activated.
The cylinder device 23 is re-driven and the holding cylinder device 3
1, and then the fifth cylinder device 28 is driven to shorten the piston rod 30 together with the holding cylinder device 31 until the limit switch 5-15 is activated. Then, the piston rod 25 rotates approximately 180 degrees until the second rotating cylinder device 24 is driven and the limit switch 5-12 is activated, and the holding cylinder device 31 is placed on the tray M on the mounting plate 51. 32, facing above the first measurement end. At this time, the protrusion 62 of the mounting plate 51 is connected to the limit switch 5 located at the end of the limit switches 5-18 to 5-23 arranged in an array.
-18 is positioned at the position where it is activated.

Next, the piston rod 25 is lowered until the fourth cylinder device 23 is driven and the limit switch 5-11 is activated, and the product G held in the holding cylinder device 31 is moved.
is seated on the tray 32, the screw rod 30 is extended together with the holding cylinder device 31 until the fifth cylinder device 28 is driven again and the limit switch $-16 is activated, and the holding cylinder device 31 is moved onto the tray 32. Position it at the center of the width. During the attack, the holding cylinder device 31 is driven to release the product G, and then the fourth cylinder device 23 is driven to raise the piston rod 25 until the limit switch 5-10 is activated to release the holding cylinder device 31. The upper back is tightened, and the fifth cylinder device 2
8 is driven to shorten the piston rod 30 together with the holding cylinder device 31 until the limit switch 5-15 is activated, and the first step is completed.

Then, the limit switch 5- of the fifth cylinder device 28
15 is input to the sequencer, the second process begins, and the sequencer commands the bell! - The belt 3 of the conveyor 2 runs again, and the material B located at the end of the belt 3 slides down along the inclined surface 4a of the chute 4 and fits into the pedestal 9 on the piston rod 8 of the first cylinder device 6. be done. Then, as described above, the photosensor 64 detects the material B sliding down along the inclined surface 4ak, and the belt conveyor 2 is stopped. Thereafter, the material B is printed in the same process as described above to produce a printed product G. This product G is held by the holding cylinder device 31 and seated on the tray 32, and then 28 is driven to extend the piston rod 30 together with the holding cylinder device 31. Then, since the product G has already been placed in the center of the tray 32 in the width direction due to the first process, the holding cylinder device 31 moves the product G already placed by the extension of the piston rod 30. This means that the dimension of one product G is shifted in the width direction of the tray 32, and as a result, the product G held by the holding cylinder device 31 is placed in the center of the tray 32 in the width direction! ! The product G that was placed earlier will be placed on the end of the tray 32 in the width direction.

When the second process is completed and reversed in this way, the third process begins, and once the same process as described above is repeated and material B is printed, product G is used for holding as described above. The fourth cylinder device 2
3 is driven to lower the piston rod 25 and seat the product G held in the holding cylinder device 31 on the tray 32. Then, unlike the first and second times described above, the holding cylinder device 31 immediately releases the product G at this position, and after A, the holding cylinder device 31 releases the product G immediately.
4 is driven and the holding cylinder device 31 is raised until the limit switch 5-10 is activated, and further, the fifth cylinder device 28 is driven until the limit switch 5-15 is activated, and the third step is started. ends. As a result, three products G are placed on the tray 32 at intervals in the width direction thereof.

When the signal from the φ limit switch 5-15, which is the signal for ending the third process, is input to the sequencer, the motor 38 is driven and the timing head 46 is driven.
The mounting plate 51 is made to run through the mounting plate 51, and the protrusion 62 of the mounting plate 51 is moved to the limit switch 5-1 which has been operated until now.
When the limit switch 5-19 adjacent to the I! be able to be placed. Then, the fourth step is started by the signal from the limit switch 5-19, and when the sixth step following the fourth and fifth steps is completed, the motor 38 is driven again. Tray 32 is moved. In this way, for each third process] - While moving the tray 32, the products G are placed on the tray 32 in an array of three products in each row, and finally, the limit switch 5-23 is activated. When the third process (18th from the beginning) is completed, the motor 38
rotates in the opposite direction from before and limit switch 5-1
The tray 32 is moved until 8 is activated and then stopped. Therefore, the worker removes the tray 32 on which the 18 products G are placed in an array from the placement plate 51, and then removes the tray 32 on which the 18 products
When a new tray 32 that has not been placed on the fi is placed on the a placement plate 51, this tray 32 will be replaced in 7 adults 6.
3 is detected and the first process is started.

According to the embodiment described above, the materials can be reliably fed one by one to the screen printing machine 19, and the printed products G can be reliably discharged one by one to the tray 3.
Since they can be placed in an aligned manner on the top of the machine, the device can be automated, contributing to labor savings.

It should be noted that the present invention is not only applicable to the supply of material B and discharge of product G to the screen printing machine 19 described above, but can of course be applied to various devices such as press equipment and other processing equipment.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to stably supply materials and take out processed products one by one, and it has the practical effect of contributing to labor saving.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the conveying device according to the present invention;
2 and 3 are a plan view and a front view showing details of the product discharge device of FIG. 1. FIG. DESCRIPTION OF SYMBOLS 1... Screen printing device, 2... Belt conveyor, 4... Chute, 6... First cylinder device, 9...
...Pedestal, 10...Second cylinder device, 11...First rotating cylinder device, 15...Third cylinder device, -
18, 31... Holding cylinder device, 19... Screen printing machine, 20... Printing table, 21... Silk screen, 22... Squeegee, 23... Fourth
Cylinder device, 24...Second rotating cylinder device, 28
...Fifth cylinder device, 32...Tray, 33...
・Product discharge device, 38...Motor, 46...Timing belt, 51...Place plate, 62...Protrusion, 63
．． 64.65...Photolenser.

Claims (1)

[Claims] 1) A conveyor that sequentially conveys materials, a chute that slides the materials down from the end of this conveyor, and a supply hand that is arranged to be able to rotate and move up and down and supplies the materials that have slid down the chute to a processing position. a take-out hand that is arranged to be able to rotate and move up and down and takes out the processed product from the processing position; a plurality of sensors that detect the positions of the supply hand and the take-out hand; and a plurality of sensors that detect material that has slipped from the conveyor into the chute. and a controller that intermittently drives the conveyor, the supply hand, and the take-out hand based on signals from each of these sensors. 2) The conveying device according to claim 1, wherein the sensor for detecting the positions of the supply hand and the take-out hand is a limit switch. 3) The conveyance device according to claim 1 or 3, wherein the sensor for detecting the material that has slipped from the conveyor into the chute is a photo sensor.