JPS59154513A - Home position stopping device - Google Patents

Abstract

PURPOSE:To stop a device at an effective home position by generating a signal for inching a movable part after the stop of the movable part is detected, and detecting the stop position and stopping the inching. CONSTITUTION:A proximity switch 2 is provided to detect the timing when an upper substrate reaches its top dead point, and a detection pulse is outputted from the switch 2 to an AND circuit 11. Further, the rising of the output pulse of a proximity switch 1 for detecting the operation state of the upper substrate is counted through a motion detector 4 to send a signal which is larger than a threshold value from an AND circuit 9 to an FF10. When a stop button 3 is pressed, a current to a motor is cut off and the stopping of the upper substrate is detected from the time required to generate the pulse of the switch 1. Then, the output of the FF10 is sent to an on-delay timer 19 and a one-shot multivibrator 20 in order to inch the substrate 62. Then, the signals of the circuit 11 and FF10 are sent to the one-short multivibrator 13 in order to stop the inching.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for stopping a predetermined movable part of an operating device at a fixed position on shore when a stop command is applied to the device.

In industrial machinery that uses an induction motor as the prime mover,
The braking time (braking distance) is not constant, so even if the timing of the stop command is the same, the actual stopping position is not constant.

One of the industrial machines that uses such electric motors is the paper cup forming machine. If the machine stops in this condition, the paper cup material may burn or
The heating process in the paper cup forming machine and 1- is shown in Figure 1.
a) Paper cup material C11) where the front side and (a) back side are shown
l・2 vs. 1~te (note 1st (*+llko;j Misarero material is the side wall, dust, ILI-shaped bottom plate is omitted), ■Ho use・Musho 3, Tonov curl J part,
Adhesion of edges, etc. of 1 rule - 1 power part (52), (53))
/Heat under IT, ■Assembling paper cup materials Heaton-
It has a molding process of 7L.

Theory I using the Breheat process as an example! I-1 then the second
As shown in the figure, the apparatus for performing the preheating process is a lower heater (63) attached to two sides of a fixed lower substrate;
) and an upper heater (64) attached to the upper heater (64), which passes between the lower heater (6:3) and the upper heater (b4).
- Lower the upper board (62) and place the heater (()
D and the lower heater (63) are used to preheat the material (51), and after a predetermined period of time -
By lifting a part of the substrate (b2) and putting back the paper cup material 0υ, the 1'' cycle of the B1/H1 process is completed.

In a breheat process having such a cycle,
Give a stop command to the paper cup forming machine.As mentioned above, there is no fixed point in time when it will stop, and it may stop during breheating. There is a risk of becoming IY.

The heating process for molding and molding also involves intermittent heating similar to that described above, carries the same risks, and its heating timing coincides with the Blechy process.

Not limited to 4W paper machine, there are some machines and devices that have a ringing part that have a danger related to the stop position. It is strongly desired to develop a device that can stop the [i1' moving part at a fixed position even if a stop command is applied at a certain position.

This invention has been made in view of the above-mentioned prior art, and its purpose is to improve the operation of the system. The object of this invention is to provide a fixed position stopping device that can always stop a movable part at a fixed position 1'R no matter what state a stop command is applied to. The purpose is to keep the existing braking time constant (~ not machine 1 commandment lf (
It is an object of the present invention to provide a localization stop device that can be easily installed with ease.

0) In order to achieve such a purpose, the explanation is that the first part generates a pulse for detecting the operating state of the moving part of the device which is to stop the moving part once and for all. a pulse generating means, a second pulse generating means that generates a pulse when the convex Eij moving part passes a predetermined stop position, and a second pulse generating means that generates a pulse (t4=) from the first pulse generating means. a means for measuring the time during which the moving part stops and detecting the stoppage of the moving part at step 2; a means for generating electricity to move the moving part after the stoppage of the moving part is detected; and a second pulse generating means. This is a fixed position stopping device consisting of a means for detecting the pulse of and stopping the movement.

This invention will be explained in detail below based on an embodiment of 1 g and 1 surface.The drawings show the application of this invention to the above-mentioned paper canopy molding mechanism, and FIG. 6 shows its structure. FIG. 4 is a time chart of output signals from each block &-2 shown in FIG. 6, and FIG. 5 is an explanatory diagram showing the operating state of the paper cup forming machine.

In this embodiment, the movable part k HB shown in FIG.
, & root stone 2) should always be stopped at a safe position, that is, at top dead center 7:,). The upper substrate (62) is driven by a 7L motor (not shown), and is set in such a manner that the upper substrate (62) makes one reciprocating motion per rotation of the five drive shafts of the electric motor. -+<tt base 4 reaction or its stop, '1- is a power device - [itl'-J- detects cardiac timing at the dead center''3- In order to detect the timing of the heart, a metal A protrusion is provided to connect the proximity switch (2) to the top board (62).
1- Attach it to the i1 row relationship.
1. The protrusion approaches the proximity sensor (2) when the 1.2 part board (62) reaches the top dead center.
2) constitutes a second pulse generating means from which a detection pulse is output.

In addition, as the first pulse generating means, the drive shaft (a plurality of pulses (eight pulses if B'll) are arranged at equal intervals on the same circumference of the drive shaft)
A metal protrusion in the shape of 1 is provided, and a proximity switch i is placed opposite the drive shaft at a position [1'1'' that can detect the approach of the protrusion.
Even if ll is provided. Due to this i''1, a pulse is output from the proximity switch (1) in proportion to the rotational speed of the upper board (G2) by detecting this pulse. The operating state can be detected.

Note that the first bus driver means and the second pulse generation stage 1 are similar to the above-mentioned implementation.
If there is one row, it's close to the concubine switch (C?)
Tully”, 7 guns! - da nayo (・temo 艮く, again 1)
Position ti, u+t, 11L motive, drive shaft, outside +
It doesn't matter if it's '9i.

As shown in Figure 5, the proximity switch (1) is connected to the differentiating circuit (5) and the timer circuit (6). 1 “Mo is a talented mo ~ / read by Yoon Detective (4), close proximity...
Differentiating circuit (5)
), the time required from the rising edge to the rising edge of the next pulse is measured by the timer circuit (6) K, and when that time exceeds a preset threshold, it is considered to be in a stopped state. The output signal is input to the ant circuit (9). On the other hand, a stop button (3) for stopping the machine is provided, and this stop button (
3) By pressing , the supply of current to the electric motor is cut off and braking is applied to the electric motor. Stop button (3
) is also connected to the seventh terminal of the flip-flop (8) via a branch circuit (7) to detect the timing of the stop command.

Furthermore, the output signal of the proximity switch (2) is ``at the time when the pulse is generated'', since the second board (62) is located at the top dead center. Used to stop manual operation.

For this purpose, the signal from the proximity switch (2) is input to the ant circuit old) for the \-j movement from the flip-flop 1JO), and this AND circuit old) is input to the -Norinofifronof(12 ) set terminal (connect with 5,
Sarashiko flip-flop (12) one shot (1
3i and 6' are connected, and a signal for stopping the movement is output from the one-way switch l-u31. 1, 2 manual 1 stop code is 4
One of them is input to the 7-linopfronop (12) terminal.

The one soyono l- (131 is a flip-flop (8)
The flip-flop (8) is connected to the reset terminal of the AND circuit (9), and the AND circuit (9) is connected to the reset terminal of the AND circuit (9).
9) - The set terminal of the flip-flop (10) is connected, and the one-piece t13+ is connected to the set terminal of the flip-flop (10).

The output signal from the flip-flop (]0) ゛(・-J,
This determines the period for which the electric motor is to be moved manually.

In order to achieve this, the output signal of the flip-flop (10) and No. 16, which is obtained by inverting the output signal of the one-shot l-+201 (to be described later) using a knot circuit (21), are input to an AND circuit θ8). The output signal of the AND circuit (18) is passed through the on-delay timer (I9) to
0), and one-on-one (20+) operates the electric motor by repeatedly turning on and off based on the pulse of the on-delay timer q91, and outputs the -r NJ□ dynamic number.

As mentioned above, this signal is fed to the not circuit (21+vc) so that the output piece 1d of the one/cono l-(2 [and circuit 118] at the output time of the sword repeats on and off), and is also fed to the output circuit 122. ) and output relay C4
Through 31, the electric motor can be manually controlled from 1 to 31 to slightly move and stop the motor.

Further, in this embodiment, an alarm is issued to notify that the stop button (3) has been pressed Ji+ and a stop command has been issued.

The timing and duration of the alarm are determined by the motion detector 1G from the moment the stop button (+) is pressed. 2).In order to realize this, the output of the flip-flop (8) !118i -s' t, .
Connect the seventh node terminal of the differential circuit (1411/C) IJ knob flop (I5) at the meeting, and connect the reset terminal of this flip-flop (I5) to the output terminal of the aforementioned one switch fI31. do.

With this circuit configuration, the flip-flop (15)
The output signal can be an alarm signal with the above-mentioned alarm timing and duration, and connecting to the free tongue through the output circuit (16) and the alarm output relay (17i) makes it easier to achieve the purpose. 5.Next, the action of the 1ffi stop device of such a configuration is determined as follows.
This will be explained based on the diagram.

Fixed position stop device 4 according to the present invention is defeated paper cup formation! ! ! When the rock is in operation, the +1 proximity switch (1) outputs the bus/L bus at regular intervals, and the proximity switch (2) outputs the power to drive the motor.
One pulse should be output per one rotation of the drawing, that is, one pulse should be output at the moment when the L section lambda plate (62) is located at the top dead center.

In this state, the proximity switch il);? +) Since the interval between the output pulses is mosquito-like, the time from the rising edge of each pulse detected by the differential circuit (5) to the rising edge of the next pulse::) - timer circuit t61
, and the output of the timer circuit (6) remains at a low level.

, 2θ) like ゛7i
(3) is 1 from P and C, then 1/;', when the alignment is given at ti, at that moment a) "Division circuit (7):
Knowing this, this signal is input and the output of Nopronoff (8) = □ ,,, high level (
0 that changes with
Detect the change point at ℃ and change point from the differential circuit u41! The detection signal (Deyori-Nori 5.) The output of Bufronogu (15) changes to f's level, and the output circuit ([6) and alarm signal -α7] is emitted.

- Force is applied to stop F, and force is applied to the motor. The output signal of the switch (1) changes as the speed increases, and the pulse generation interval changes, and when the speed drops below a certain level, the pulse generation interval changes.
The time from the pulse of I? to the next pulse is considered to be the stop time set by the timer circuit (6) and is equal to or greater than the 1-power time (lal value), and this I?・The moment the q value is exceeded is considered to be a stop, and the output is output from the timer circuit (6).
When 5 is low, the output fc+ of the AND circuit (9) becomes low and the output level of the AND circuit (9) becomes loud. , the second output signal is manually input to the seventh end of Solinobfrog, ・fu (10), and the output signal of Solinobfrog 00) changes from low I/-\le to iB rail (・). High to low state or thread 1
Have one.

Output distortion of the antenna circuit (18) (1" W level state and short-time operation of low level state is indicated in 1~, 51 is on "j', iterator timer (19) K,, l' :Product level state - 1-i Roharus is fired after a delay of 1 from the timing of the rise of \. In the one-shot of 1-i Roharus (manual input to 201, Wanyoj throat C20), this pulse is used as a trigger and time is emitted, and 2. 1j force the luth, and connect the second output bow to the bow [''l hlN t21-(the inverted version is connected to the force input terminal of the tent circuit (18)).
You can see what you can gain by doing so.

Therefore, the output signal of 2 (11 is 'mountain', I
High 1 novel period to operate the auxiliary machine and low period to stop the electric motor.
-Be JL period is repeated with 1 Teramat and 2 respectively -ku1
There is a working signal, and this signal is input to the output circuit (22).
J L output relay (r3i: (Turns off the current supply to the motor, turns off 4) One shot +201
The output signal (:'-, l, I-) activates/stops the three motors (rhythmically and rotates in small increments)/
:, ), - can be done.

・Knee's 51.5 ・j Under moving condition - °C Electric rock Bi [
It rotates slowly, and when the upper board (62) reaches top dead center, the rhythmic machine (Kai) is completely stopped. In the circuit (old circuit), the rhythmic) state (when there is -C) is outputted, ζrus, which corresponds to the
), the pulse rises; catch the corner and sing/
-I no l- (a pulse that activates 13+ is output) J, 5, one /' Yono l - From t131, a predetermined +1. Between '7' (L5), a signal with a high level is output. Return to -4-Totomo (〆Koichi 7 Rinobufu rJ
Knob (8), flip-flop UO+, -7 Rinobuso [
1 Knob (15) Enter the 7th node end of the glue, and the name of the 7th knot. Return the nofronob to the ten-node state, that is, return the output signal from each solinobfrog to a low level 1 ~ "(σl-f! &
This stops the machine at the 1L dead center, which is the upper board tti2) prompting a) 6).
6-4) (Can do the second one.

Although the present invention has been described in detail based on the embodiments shown in the drawings, this invention is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit of the invention. You can set the implementation mode at any time (ζ).

As mentioned above, this invention is based on Y (H7 position i) (a machine with a moving part that is to be stopped (1 to 1)).
Even if the suspension ordinance is violated? 41, the movable part can be stopped at a predetermined position, and the process is carried out accurately and quickly, and there is no danger, especially if the movable part is stopped at a position other than the fixed device. It is effective for such devices.

[Brief explanation of drawings]

The drawings show one embodiment of the invention, and FIG. 1 is an explanatory diagram of a cup blank, and FIG. 2 is an illustration of a paper cup forming machine.
6 is a Glock diagram showing the configuration of the present invention, and FIG. 4 is a diagram showing the output signals from each block shown in FIG. 5. Operation status of paper cup forming machine 1.1! , which is an explanatory diagram 1゜

Claims (1)

[Claims] 1) The corresponding ljT of the device that should stop the movable part at the orientation i4
a first pulse generating means for generating a pulse for detecting the operating state of the moving part; a second pulse generating means for generating a pulse when the moving part is at a predetermined stop position;
The first pulse generating means measures the time required to generate a pulse (and detects the stoppage of the movable part, and after the stoppage of the movable part is detected, the movable part is moved). A fixed position stopping device (6°