JPH03272918A - Roll-over transfering device - Google Patents

Abstract

PURPOSE:To stabilize stacking attitude in a roll-over transfering device for a shadow mask for a color CRT by inching the roll-over device and a conveyor as much as they are relatively offset so that products can be shifted and stacked on the conveyor. CONSTITUTION:A mask 21 which is taken out of a molding device is put on a mask supporting member 22 in a roll-over device 10. The mask 21 is retained by the grip 23a of an air cylinder 23 and the roll-over device 10 is moved to the side of a belt conveyor 30 by an air cylinder 14. The mask 21 is rolled over by an air cylinder 19 and placed on the conveyor 30, when the grip 23a is relieved from retention. In case of repeated operation for stacking, a sensor 32 detects the mask to inch the conveyor 30 until a sensor 31 is turned off. In this way, stacking is performed in a stable condition.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to products having a concave surface, and is directed to a counter-transfer loading device for inverting and stocking products with the concave surface upward so that the concave surface is downward. Regarding.

[Conventional technology]

An example of a product having a concave surface is a shadow mask used in color cathode ray tubes. The shadow mask is formed by a press so that the upper part is concave. On the other hand, when storing the molded shadow masks (hereinafter referred to as molded masks) in a storage, they are stacked with the concave side facing downward in order to prevent the storage space and the molded masks from being deformed, scratched, etc. Therefore, since the molded mask formed by the press machine has the concave surface facing upward, it is necessary to reverse it using a counter-transfer loading device and place it on the stock conveyor with the concave surface facing downward.

Conventionally, counter-transfer loading devices have been used to either feed the stock conveyor at a constant pitch each time the product reversed by the reversing device is placed on the stock conveyor, or to drive the stock conveyor continuously, and to transfer the products individually onto the stock conveyor. The method of arranging them in a row is commonly used.

Although there are only a few methods, there is also a method of stacking products on a stock conveyor.

An automatic transfer device for electron tube parts is disclosed, for example, in Japanese Patent Publication No. 33032/1983.

Problems that C-spread aims to solve] In the non-stacking method, the total length of the stock conveyor is long, and it is necessary to stack the stock manually when storing it in the storage.

In the stacking method, items are stacked in a box-like manner, so if the concave surface fits into the convex surface, they can be stacked to stabilize the toon posture.
In the case of molded masks, they are in an unstable state and are unable to maintain a constant posture, and the vibrations caused by the conveyor drive cause the product above to slide off in any direction, resulting in natural disasters in subsequent processing. This also causes deformation, scratches, etc.

Therefore, the stacking method described above is generally used frequently.

In addition, the conventional stacking method involves dropping products from a certain height and stacking them, so it is not possible to stack them with high precision, and thin plate products that are easily deformed, such as large molded masks, may be deformed or scratched. There was a problem.

A first object of the present invention is to provide a counter-transfer loading device that is capable of stacking in a stable state that prevents the posture from being distorted due to vibration or the like.

A second object of the present invention is to provide a counter-transfer loading device km that prevents deformation, damage, etc. during stacking.

[Means to solve the problem]

The first object is achieved by providing one-motion means for relatively moving the reversing device and the conveyor by a smoothing amount so that the products are emptied and stacked on the conveyor.

The second purpose is to hold the product and rotate the reversing block 17 of the reversing device. ) Reversal angle f! that controls the reversal angle!
This is coupled by providing an II control means.

[Effect]

If the conveyor or the reversing device is operated by the single-acting means each time a product is placed on the conveyor by the reversing device fK,
Products are stacked with only the valve holdings shifted. in this way,
Since the stacks are shifted from the beginning, there is no risk of their postures being distorted by the vibrations of the conveyor (tx<), and it is possible to perform delicate stacking equivalent to manual stacking.

Furthermore, when the product is dropped from the reversing device onto the conveyor, the reversing angle of the reversing block is controlled by the reversing angle control means according to the number of sheets already stacked, so that the falling height of the product can be minimized. can. This results in
It is possible to prevent product deformation, damage, etc. that occur during stacking, and also improve stacking accuracy.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. The reversing transfer device is composed of a reversing device 1o and a belt conveyor 30.

The reversing device 10 has a moving table 11 (i7), and this moving table 11
It is slidably provided on a rail 13 fixed on the +L'J stand 12 in parallel to the feeding direction of the belt conveyor 3o, and is moved by an air cylinder 14 with a brake fixed on the stand 12. A reversing block support stand 5 is fixed on the moving table jl, and a reversing block @16 is rotatably supported on the belt conveyor 30@ of this reversing block support stand 15. A pinion air is fixed to the reversing shaft 16, and a rank 18 is meshed with the pinion 17. The rank 18 is fixed to an air cylinder 19 with a brake, which is fixed to the frame 1.2. A sensor hole 17a is provided on the side surface of the folded pinion 17 at a constant diameter on the circumference, and the sensor hole 17a is detected by a sensor (not shown) disposed on the side of the rank 18. . &'! on the reversing axis 16! The rotation block 20 is fixed, and this
On the reversing block 20, a mask support member 22 that supports the molded mask 21'5e and a grip support member 24 to which a brake air cylinder 23 having a grip ib 23af that grips the side surface of the molded mask 21 is fixed are fixed. has been done.

F! placed on the belt conveyor 30 on the @1 side of the belt conveyor 3o. Three sensors 31, 32, 33 for detecting the i, shaped mask 21 are arranged. Here, the sensor 32 is disposed close to the sensor 31, and although this sensor 32 does not need to be particularly curved, it is necessary for safety to prevent the molded mask 21 from becoming excessively smooth. It is provided.

Further, the distance between the sensors 31 and 33 is set to be larger than the length of the stacked molded masks 21.

A counter-transfer loading device having such a configuration is used in combination with a press machine 40, as shown in FIG. 2, for example. That is,
On the side of the press machine 40, there is a mask supply device 42 that feeds a mask original plate placed on a table/traverse device 41 into the press machine 40, and a molded mask take-out device that takes out the molded mask 21 from the press machine 40. fIL43 is arranged.

The mask supply bag f142 includes a suction device 42a that suctions a mask original plate and a drive device 42b that drives the suction device 42a. The molded mask removal device @43 includes a grip device 43a that picks up the molded mask 21, and a drive device 43b that drives the grip device 43a. The rail 13 is disposed such that the reversing device 10 can reciprocate from below the clip device 43g to the side of the belt conveyor 30.

Next, the effect will be explained. At startup, the reversing device 10
is located below the grip device 43a. First, a mask original plate placed on a table/traverse device 41 is sucked by a suction device 42a, and is fed into a press machine 40 by a drive device 42b.

The molded mask 21 molded by the press machine 40 is picked up by a grip device 43a, and is picked up by a drive device 43b.
The mask is taken out into the press 40 and placed on the mask support member 22 of the inverter [10].

Next, the air cylinder 23 is operated to hold the molded mask 21' with the grip portion 23a. After that, air cylinder 14
is activated, the reversing device i10 is moved to the side of the belt conveyor 30, and is positioned to avoid interference with the grip device 43a.

Next, the air cylinder 19 is operated and the rack 18 rotates the pinion 17, the reversing shaft 16, and the reversing block 20, and the molding mask 21 is reversed and placed on the belt conveyor 30. Next, the air cylinder 23 operates in the opposite direction to the above, the grip portion 23a releases the holding of the molded mask 21, and the molded mask 21 is placed on the belt conveyor 30. Subsequently, the air cylinder 19 is operated in the opposite direction, and the reversing block 20 is positioned on the reversing block support 15. Thereafter, the air cylinder 14 operates in the opposite direction to the above, and the reversing device 10 is positioned below the grip device 43a and stands by. Thereafter, the reversing device 10 repeats the above operation every time the molded mask 21 is received or taken out from the molded mask take-out i&t 43.

In this case, the reversal angle of the reversal block 200 is determined according to the number of molded masks 21 stacked on the belt conveyor 30. The reversing angle of the reversing block 200 is detected by the sensor hole 17al (not shown), and the operating amount of the air cylinder 19 is controlled.

Furthermore, due to the operation of the above-mentioned reversing device 1O, as shown in FIG.
As shown in +, the molded mask 2 is placed on the belt conveyor 30.
1 is placed, the sensors 31, 32 are connected to the molded mask 21.
is detected and turns on. Therefore, the belt conveyor 30 is driven with the sensor 32 on until the sensor 31 turns off.

This driving of the belt conveyor 30 is performed every time the molded mask 21 is placed on the belt conveyor 30. As a result, the molded masks 21 are stacked evenly, as shown in FIG. The ratio of the overlapping portion of the molded mask 210 in this case can be set by the interval between the sensors 31 and 32. Once the specified number of sheets have been stacked, the belt conveyor 30 is fed until all sensors 31, 32, 33 are turned off. Thereby, a space is secured between the sensors 31 and 33 for the molded mask 21 to be placed next.

In this manner, the belt conveyor 30 is driven until the sensor 31 is turned off every time the molded mask 21 is placed on the belt conveyor 30 by the reversing device 10, so that the molded masks 21 are stacked with an offset of the driving amount. That is, since the molded masks 21 are shifted and stacked on the top of the belt conveyor 30 in advance, the posture of the stacked molded masks 21 does not change due to the vibration of the belt conveyor 30.
It is possible to perform delicate stacking equivalent to manual stacking.

In addition, the sensor hole 17a is detected by a sensor to control the air cylinder 19 according to the number of sheets that have been stacked when the molding task 21 is placed on the belt conveyor 30 from the reversing device 10 to 1F, and the reversing block 200 is reversed. By controlling the angle, the falling height of the molded mask 21 can be minimized. This makes it possible to prevent deformation of the molded masks 21 and the like that occur during stacking, and also to improve the stacking accuracy.

In the above embodiment, the sensor 31 is used to shift and slightly overlap the molded masks 21 on the belt conveyor 30, and the controller moves the mask 30 until the sensor 31 turns off. However, the asyl cylinders 141-111J may be controlled so as to change the position of the movable table 11 every time the molding masks 21 are stacked.

Further, in the above embodiment, the driving source C of the moving table 11 and the reversing block 20 is an air cylinder IJ, 1.9
f-used motors, servo motors, pulse motors, etc.! It is good to use a driving force. In this case, the drive source of the reversing block 20 is electrically driven 4. By using a stage, this electric drive means σ) The rotation sound can be controlled electrically and electrically, so
As shown on the solid line side, there is a sensor hole 17a in the pinion 17.
2) There is no need for machining, and the detection 17-1→1 sensor of the sensor hole 17a is also prevented.

In addition, on the upper trial line side, 1-
Although the explanation was given for the case of a concave surface, it also applies to products with a similar shape (4).

〔Effect of the invention〕

According to the present invention, firstly, the valve actuating means C' is a product.

Since the vibration of the conveyor causes the posture to change to <'-! ;There is no risk of
It is possible to perform delicate accumulations that are equivalent to manual accumulations. In addition, when products are dropped onto the conveyor from the shiotensha, the reversal angle of one reversal block is controlled by the reversal angle control means according to the number of sheets that have already been stacked, so the falling height of the product can be kept to the minimum necessary. This makes it possible to prevent product deformation and scratches that occur during loading, and to improve stacking accuracy.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention, (a) is a front view, (a) is a front view, (a) is a front view;
b) is a front view of the stacked state, and FIG. 2 is a plan view of the device applied to a breath n-motion transfer machine. 10... Reversing device, 11... Moving table, 14...
...Air cylinder, 17... Binion, 17a
・-・Sensor hole, 18...Rack, ]I9・
・Air cylinder, 20...Reversal block, 21
... Molded mask, 30... Belt conveyor,
31-33...Sensor. ／′″－'＞

Claims (1)

[Claims] 1. A counter-transfer loading device in which a product having a concave surface is placed on a reversing device with the concave surface facing upward, and the product is reversed by the reversing device and placed on a conveyor with the concave surface facing downward, A counter-transfer loading device characterized by being provided with an inching means for relatively moving the reversing device and the conveyor by the amount of displacement so that the products are shifted and stacked on the conveyor. 2. A product with a concave surface is placed on a reversing device with the concave surface upward, and the product is held and rotated by the reversing device, which inverts the product with the concave surface facing downward and places it on a conveyor. 1. A counter-transfer loading device comprising a reversing angle control means for controlling a reversing angle of a reversing block of a movable reversing device.