JPH03288714A - Classifier of transported object - Google Patents

Abstract

PURPOSE:To take a proper measure such as maintenance and others by devising a classifier of bottles and others to detect whether an object pushing means rotates to a corresponding position and stops in a required time after the secondary side of a coupling means stops or not with a stop position detection means. CONSTITUTION:A coupling means 7 receives a start signal from a sensor to detect the arrival of the aforementioned transported object not described, connects a primary side shaft 2 and a secondary side shaft 6 in a required time, releases connection with an output signal (x) of an access switch 19 and suddenly stops the secondary side shaft 6. At this time, when any part becomes abnormal, the coupling means 7 stops rotation of the secondary side shaft 6 with the output (x) of the access switch 19 and after a specific action time, the access switch 16 slips out from a cut-off part 15, and an output (y) showing that the cut-off part 15 cannot be detected is output as H level. Consequently, an warning output (an alarm signal (z)) comes to be active and LED 21 is put on and anounced to an operator. Accordingly, it is possible to improve maintenance and others.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a conveyance object sorting device for appropriately sorting various objects such as bottles, cans, packages, etc. while they are being conveyed. .

(Prior Art) Conventionally, as a sorting device for bottles and the like, for example, a device described in West German Publication DE 3631879A1 is known. In this device, in order to obtain high responsiveness, the motor side and the brush segment side are appropriately connected by coupling.

(Problem to be Solved by the Invention) However, according to the above-mentioned conventional technology, during one rotation on the motor side, due to a malfunction in the transmission mechanism such as a belt, or a malfunction in the coupling, the brush segment does not rotate properly. This has caused a problem in that the Brage segment does not stop at a predetermined stop position, but instead stops at a position where a bottle or the like is pressed, resulting in unexpected sorting.

The present invention was made in view of the problems of the conventional conveyed object sorting device, and its purpose is to detect when the object pressing means that presses the object and moves it in a desired direction stops at an inappropriate position. It is an object of the present invention to provide a sorting device for conveyed objects that can facilitate maintenance, etc., and can take measures such as reducing the situation in which conveyed objects are subject to unexpected sorting.

(Means for Solving the Problem) The present invention includes a drive source, a primary shaft rotated by the drive source, an object pressing means for pressing an object to be conveyed and moving it in a desired direction, and the object pressing means. a secondary shaft which is coupled to the eI body and rotates the eI body pressing means; a force/twisting means which couples the secondary shaft and the primary shaft at a required time; and a predetermined rotation of the secondary side by the coupling means. A predetermined rotation detection means for detecting a predetermined rotation; a secondary rotation stop means for stopping the rotation of the secondary side based on the detection output of the predetermined rotation detection means; rotation start position detection for detecting whether or not the object pressing means has stopped at a position corresponding to the predetermined rotation at a required time after the rotation of the object pressing means should stop after the stopping operation is performed; A sorting device for conveyed objects was constructed by including means for sorting conveyed objects.

(Function) According to the above configuration, the secondary side rotation stop means stops the rotating state of the secondary side. Then, there is a reaction time from the stop and the object pressing means stops, but after this, the object pressing means is stopped at a corresponding position by a predetermined rotation at a required time such as when an instruction to start rotation is given. It is possible to detect whether the vehicle is stopped at an inappropriate position.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of an embodiment of the present invention, and FIG. 2 is a perspective view of the main part of FIG. 1. In these figures, reference numeral 1 denotes a motor as a driving source, which is coupled by a timing belt 5 to a timing gear 4 fixed to a primary shaft 2 with a nut 3 or the like. The timing bell h5 is connected to a timing gear (not shown) provided on the shaft of the motor.9 The primary shaft 2 is connected to the secondary shaft 6 by force/twisting means 7 consisting of a vacuum clutch, brake, etc. 6. Inserted into the secondary shaft 6 are a glass socket 8 on the side of the coupling means 7, a cam 9 for detecting the glass position, a nut IOA, a cam 18 for detecting a predetermined rotation, a nut 10B, a plush body 11, and a nut 12. Natsu 8.
A cam 9 for detecting a brush position, a cam 18 for detecting a predetermined rotation, and a brush body are fixed by the IOA, IO8, and 12. Note that grooves are formed in the holes into which the shafts of the timing gear 4, the cam 9 for detecting the brush position, the cam 18 for detecting predetermined rotation, and the brush body 11 are inserted, and the grooves correspond to the primary shaft 2 and the secondary shaft 6, respectively. Positioning is achieved by fitting into a protruding strip formed on the outer peripheral portion.

The brush body 11 consists of an annular main body 13 and bristles 14 implanted on the outer periphery of this main body 13.
As is clear from FIGS. 2 and 2, the length of the hair changes as it goes around, creating a so-called eccentric state. Of course, the bristles 14 may be inscribed at a predetermined length in a part of the periphery. Further, the brush position detection cam 9 is disk-shaped and has a notch 15 in which a portion thereof is cut out. A proximity switch 16 is provided at a position corresponding to the notch 15 in the housing of the coupling means 7 . Further, the predetermined rotation detection cam 18 is also disk-shaped, and has a cutout portion 18A in which a portion thereof is cut out. A proximity switch 19 is located at a position corresponding to the notch 18A of the housing of the coupling means 7.
is provided. The notch 15 and the notch 18A are positioned apart from each other by a distance equivalent to a rotation angle corresponding to a reaction time from when the notch 18A is detected by the proximity switch 19 and is instructed to stop rotation until the rotation actually stops. ing. In a normal state, when the plush body 11 has completely stopped, the shortest (or non-existent) part of the limbs of the bristle body 14 is located on the side of an object such as a bottle, and the notch of the camry for detecting the brush position Bush body 11 such that portion 15 is located at the tip of proximity switch 7.
, the glass position detection cam 9 is positioned - the output of the proximity switch 19 (fif, n) is given to the coupling means 7, used to stop the secondary shaft 6, and also given to the control section 20. , and the output ■← of the proximity switch 16 is given to the control section 20. Furthermore, the control section 20 is informed that, for example, the object has arrived at the position where the bushing body 11 should start rotating in order to press the object. A start signal ■ is given from the detecting sensor. This start signal ■ is also given to the coupling means 7. When the start signal ■ indicates "start of rotation", for example, (L level) is sent to the control section 20. It has a built-in gate that allows the output of the proximity switch 16 to pass when , and a flip-flop that is set by the output of this gate and reset by the output of the proximity switch 19. At the same time, it is sent to the outside and used for stopping the motor 1, etc., as appropriate.

In the conveyance object sorting device configured as described above, the coupling means 7 receives the start signal (■) from the aforementioned sensor (not shown) that detects the arrival of the conveyance object, and then connects the primary shaft 2.
and the secondary shaft 6 after the required time (the time from the sensor position of the above start signal ① until the object arrives at the front of the bushing body 11), and release the coupling using the output signal of the proximity switch 19. to bring the secondary shaft 6 to a sudden stop. The primary shaft 2 is placed in an idling state because the motor is constantly rotating. Note that if a vacuum clutch brake is used as the coupling means 7 as described above, the responsiveness at the start and end of coupling (sudden stop of the secondary shaft 6) will be extremely good despite high speed rotation. .

In such a configuration, the timing belt 5 is not loosened, the coupling means 7 is normal (for example, the vacuum pressure is at a predetermined level), the bushing body 11 is not loosely attached, etc.
If everything is normal, when the start signal is at the timing (L level) instructing the start of rotation, the output ■ of the proximity sensor 6 will cause the notch 15 to be detected as shown in the evening/imming yard in Figure 3. It becomes L level indicating that it is being detected. In the control section 20, even if the gate is opened, the flip-flop is not set, and its output, the alarm signal, remains at the L level.

However, if any of the above parts becomes abnormal, the coupling means 7 stops the rotation of the secondary shaft 6 due to the output (2) of the proximity switch 19, and after a predetermined reaction time, the proximity switch 16 stops. It will shift from the notch 15. Then, as shown on the right side of FIG. 3, when the start signal ■ is at the L level to instruct the start of rotation, the proximity switch 16 outputs an output ■ indicating that the notch 15 cannot be detected. is output at H level.

As a result, in the control unit 20, when the gate is opened, the free knob flop is set by the H level output ■, and the alarm output (alarm signal ■) becomes active and the LE
D21 is lit and the operator is notified. Further, appropriate countermeasures can be taken using the alarm output. Note that the flip-flop is reset every time the proximity sensor 19 detects the notch 18A (every time the output ■ goes to L level).
The alarm signal starts after the start signal ■ is given.
It remains active until the output ■ reaches the L level, and this is repeated.

0 In the above embodiment, the brush body 11, the brush position detection cam 9, and the predetermined rotation detection cam 18 were aligned by the protruding stripes, but for example, as shown in FIG. A plurality of convex (concave) portions 41A and 41B are provided on the - side (brush body 11 side) of the brush position detection cam 9 (predetermined rotation detection cam 18), and the convex (concave) portions 41A and 41B correspond to the corresponding surfaces of the main body 13 of the brush body 11. A concave (convex) portion may be provided to enable one-touch positioning by fitting.

Further, the force/twisting means 7 is not limited to a vacuum clutch brake, but may be an electromagnetic clutch, etc., and the brush body 11 is not limited to a brush, but an eccentric elastic body or the like may be used as long as it presses an object. You can also do that. Further, the proximity switches 16 and 19 can be changed as necessary, such as optical sensors or magnetic sensors other than those in the embodiment. Furthermore, the levels of each signal and the configuration within the control unit 20 are merely examples. In addition, the time when the start signal is given in the embodiment means the evening or timing when it can be detected that the object pressing means has stopped at the corresponding position 1 by a predetermined rotation when the continuous operation is considered. ,
Therefore, it goes without saying that if it stops before the signal is applied to this star, it can be detected at that time as well.

〔Effect of the invention〕

As explained above, according to the present invention, if the object pressing means has not rotated to the corresponding position by a predetermined rotation and stopped at the required time after the secondary side of the coupling means has been stopped by the secondary side stopping means. , which will be detected by the stop position detection means, thereby allowing appropriate measures such as maintenance to be taken.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention, FIG. 2 is a perspective view of essential parts of the present invention, and FIG. 3 is a time chart 1 to 1 for explaining the operation of an embodiment of the present invention. FIG. 4 is a perspective view of essential parts of another embodiment of the present invention. 1...Motor 2...Primary side shaft 4...Event/timing gear 3...Timing bell) - 2 6...Secondary side shaft 7...Coupling means 9...Grash position Detection cam 11...Brush body 13...Main body 14...Bristle body 15, 18A...Notches 16, 19...Proximity switch 18...Predetermined rotation detection cam 20...Control Part 21...LED

Claims (3)

[Claims] (1) A driving source, a primary shaft rotated by the driving source, an object pressing means for pressing an object to be conveyed and moving it in a desired direction, and being coupled to the object pressing means and rotating the object pressing means. a coupling means for coupling a secondary shaft to the primary shaft at a required time; a predetermined rotation detection means for detecting a predetermined rotation of the secondary side from the coupling means; a secondary side rotation stopping means that performs an operation to stop the rotation of the secondary side based on the detection output of the means; and rotation start position detection means for detecting whether or not the object pressing means has stopped at a position corresponding to the predetermined rotation at a required time after the rotation of the means should stop. Object sorting device. (2) The object pressing means is a brush body consisting of an annular body coupled to the secondary shaft and a hair body implanted on the outer circumferential surface of the annular body, and the rotation start position detecting means is the aforementioned one. 2. The conveyance object sorting device according to claim 1, wherein the sensor is a sensor that detects a mark portion provided at a predetermined position on the brush body. (3) The conveyance object sorting device according to claim (2), wherein the mark portion is the notch portion of the cam body which is coupled to the brush body and has a portion cut out, and the sensor is a proximity sensor.