JPS5915280B2 - Tuning device for rotating equipment installed on multiple lines - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a synchronization device that automatically synchronizes rotating equipment installed on a production line with multiple threads, particularly a sewing machine device that attaches a retrieval string to a female sanitary pad. This invention relates to an invention suitable for

A cord for taking out the sanitary pad after use is usually sewn onto the pad, but this is usually done using a sewing machine installed on the production line of the pad manufacturing equipment. In conventional tanhong manufacturing equipment,
A single sewing machine was disposed in the tongue phone manufacturing apparatus, and the single sewing machine was used to intermittently compress and mold the assembled absorbent bodies one after another to manufacture tongue phones. Therefore, the production capacity of the pong making machine was determined by the capacity of the sewing machine for attaching the cord. In order to improve the production capacity of tanphone manufacturing equipment, the present inventors installed sewing machine devices for string attachment on multiple lines, and by operating the multiple sewing machine devices in synchronization, the assembly for removal was accomplished. The present invention is proposed for the purpose of realizing a synchronization device for the plurality of sewing machine devices described above so that the absorbent material can be continuously sent to the next compression molding process, thereby improving production efficiency. Although it has been achieved, the book '0
It goes without saying that the tuning device of the invention is applicable not only to synchronized driving of a plurality of sewing machine devices, but also to synchronization of rotating equipment installed on a plurality of production lines.

Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in Figs. Indicates the case where

In Fig. 1, A is absorbent cotton storage, B is absorbent appropriate amount supply cutting device, C is cut cotton transfer/o feeding device,
D is a sewing machine device for sewing the take-out string, E is a fixed length cutting device for the take-out string, F is a set cotton transfer device, G is an alignment transfer device, and each member of A to F is parallel to each other as shown in the figure. They are installed on each line.

It forms the structural parts up to the process of aligning and transferring assembled cotton in the sanitary pad manufacturing apparatus 5. The structure of each of the above members and their functions will be explained below with reference to the attached drawings. The feeding and cutting of the appropriate amount of the absorbent material is carried out as shown in FIG.

The cotton fabric of the absorbent material is usually processed into strips, which are then wound into rolls. From a cotton fabric roll 1, the cotton fabric is sandwiched between payout rolls 2 and 3, rotated in the directions of arrows A and I in the figure, and fed out. The amount of cotton fabric to be fed out is determined by the number of revolutions of the feeding rolls 2 and 3, and this amount can be freely adjusted. (Not shown) The cotton fabric fed out by a predetermined amount by feeding rolls 2 and 3 is
Cut with a Kirochitch cutter. The upper blade 4 and the lower blade 5 are chirochi type cutters. The lower blade 5 is fixed, and the upper blade 4 moves up and down in synchronization with the feed roll.
That is, when the upper blade 4 moves upward, the feed rolls 2 and 3 rotate and pay out a predetermined amount of cotton fabric, and when the upper blade 4 moves downward, in the direction of arrow C in the figure, the cotton fabric is cut. When this happens, the feed roll is stationary. The cotton body, that is, the cut cotton 6 cut into a predetermined amount in this way is pushed on its side by the cotton pushing rod 7, and the traveling direction is changed 9e and transported. FIG. 3 is a diagram showing cut cotton transfer, assembly, string cutting, and assembly cotton transfer. Here, the cut cotton conveyor chain 8 is arranged as shown in the figure, and is continuously rotated in the direction of the arrow in the figure by a drive source. The cotton pushing rods 7 are attached to the cut cotton conveyor chain 8 at regular intervals by attachments. The cut cotton 6 that has been cut by a predetermined amount by the upper blade 4 and lower blade 5 of the Kirochit type cutter falls on the cut cotton transfer guide 9, and is then pushed on the side by the cotton push rod 7 in the direction of O in the figure. will be transferred to. Eventually, it is sent between the presser metal fitting 11 of the sewing machine 10 and its receiving and feeding metal fittings 12. At this time, the string 13, which is a general method for sewing machines, is placed along the center of the upper surface of the cotton cut 6, and the upper thread 14 and the lower thread 15 are attached to the cotton cut 6, that is, the sewing work is performed using a sewing machine. Do this. The cut cotton 6 is transferred at regular intervals, and the cut cotton 6 is transferred to the sewing machine 1.
Even after passing through the needle part 0, the string 13 is sewn with the upper thread 14 and lower thread 15 of the sewing machine. Subsequently, the next cut cotton is assembled in the same manner, so that the assembly work can be performed continuously. The assembled ready-to-set cotton v is transferred by a set cotton transfer conveyor 16.

That is, the assembled cotton transfer conveyor 16 is continuously rotated in the direction of arrow force in the figure by a driving source, and the sliding plate 17 is fixed to receive the lower part of the assembled cotton. The assembled cotton 6' assembled by the sewing machine 10 is pressed against the sliding plate 17 by the assembled cotton transfer conveyor 16, and is slid on the sliding plate 17.
while being transferred in the direction of arrow K in the figure. At this time, since the string 13 is continuously attached between the braided cotton 6' and the previous braided cotton, it is necessary to cut the end of the string, that is, the tip of the braided cotton C. The upper blade 18 and lower blade 19 of the string cutter are arranged in the positions shown in the figure, with the lower blade 19 being fixed and the upper blade 18 being moved up and down by a solenoid (not shown). When the assembled cotton 6' is in position C, its tip is detected by a photoelectronic switch 20 fixed outside, and a timer (not shown) is activated.
When the assembled cotton is transferred to the position 6', the solenoid is energized and the cutter upper blade 18 is operated in the direction of the arrow C to cut the string. The assembled cotton from which the string has been cut is further transported in the direction indicated by x in the figure. FIG. 4 is a diagram showing alignment transfer.

That is, the alignment transfer conveyor chain 21 is transferred in a direction of 90 degrees with respect to the assembled cotton transfer conveyor 16 in the direction of the arrow mark in the figure. The assembled cotton receiving riveting carts 22 are attached to the alignment transfer conveyor chain 21 at regular intervals by attachments. As shown in FIG. 3, the assembled cotton v transferred by the assembled cotton transfer conveyor 20 is
At part A in the figure, the cotton is separated from the sliding plate 17 and is received by the assembled cotton receiving bucket 22 of the alignment transfer conveyor chain 21, which is being transferred in synchronism, and is transferred in the direction of the arrow in FIG. 4. Similarly, the assembled cotton FX'5 sent from another sewing machine is transferred to the cotton receiving riveter 22'V.
The assembled cotton 6' and 6'7 received from C and thus fed by the two sewing machines are transported as one line by one aligned transport conveyor chain 21. At the alignment transfer conveyor chain 21, assembled cotton 6' and 6'
In order to convey the cotton 7 correctly alternately, it is necessary to keep the preceding processes, namely the two sets of cotton cutting ricters, cut cotton conveyor, sewing machine, and set cotton conveyor, in a constant phase with each other and synchronize them. There is.

FIG. 5 is a diagram showing the layout of the apparatus of the present invention. Here, a drive source a, clutches B and d, transmissions C and J,
Sewing machines 10, 10', reducers D, d', single position clutches E, e', cotton cutters 4, 5, 4', 5
', cut cotton transfer conveyors 8, 8', assembled cotton transfer conveyors 16, 16', and alignment transfer conveyor chain 21 are arranged as shown in the figure. Generally, a single position clutch is used to synchronize two sets of lines. A characteristic of single position clutches is that they must be used at low rotational speeds. That is, at high rotational speeds, the teeth of the single-position clutch may mesh irregularly or intermittently, impeding synchronization.
Therefore, in cases like this device, such as sewing machines, which require relatively high rotation speeds, the drive source should be decelerated once, a single position clutch should be used at low rotation speeds, and then the speed should be increased again. , must drive the sewing machine. In these cases,
In order to synchronize the two lines, the transmission part of the speed reduction mechanism from the drive source to the single position clutch is a gear, chain, or timing belt, which does not slip during the transmission. At this time, the transmission speed increases or decreases slightly due to the characteristics of gears, chains, timing belts, etc., and cannot be a constant speed. Therefore, when the speed of a sewing machine or the like is increased, this is amplified and generates so-called pulsation, making its operation unstable and interfering with the operation of various parts. With the present invention, these drawbacks are completely eliminated. That is, as shown in FIG. 5, the sewing machines 10, 10' are driven from a high speed shaft in front of the single position clutches E, e' and in front of the speed reducers D, d' (7), It is now possible to start and stop the system freely at any time.In order to synchronize the two sets of lines, single position clutches E and e are used.
After that, cut cotton vines 4, 5, I! ,5′,
The cut cotton transfer conveyor 8, the cut cotton transfer conveyor, and the assembled cotton transfer conveyor 16, 16' are driven.

In this state, the sewing machine clutches B and b' are electrically engaged so that the respective sewing machines 10 and 10' operate in synchronization with the single position clutches E and e'.
It is cut. The device allows total synchronization, ie an alternating and regular transport of the set cotton. The transmissions C and c'' are arranged taking into consideration the delicate characteristics of assembled cotton and slippage during transfer due to changes in ambient temperature, etc. Single position clutches E and e' shown in FIG. In order to electrically interlock the clutches B and b' of the sewing machines 10 and 10', the following measures were taken.

That is, in the apparatus shown in FIG. 5, among the two sets of lines,
In order to freely operate and stop one line at any time, single position clutches E and 'e are electrically engaged and disengaged.As shown in Fig. 6, the wrangle position clutch is The side body f and the driven body g are each a mechanism in which the drive is transmitted only when the groove h on the drive side body f and the convex portion 1 on the driven side body g match.

Here, the drive-side main body f is always rotated at a constant speed by the drive source. Therefore, at any given time, after the single position clutch is energized and until the drive is actually mechanically transmitted from the drive side body f to the driven side body g, that is, the drive side body in FIG. There is a time lag between the groove h on f and the protrusion 1 on the driven body g, and this time lag differs each time the single position clutch is electrically engaged and disengaged. It is. Therefore, according to the present invention, the single position clutch E,
In order to synchronize J and the sewing machines 10 and 10', after energizing the single position clutch, detect the point in time when the drive is actually mechanically transmitted, and at the same time turn on the sewing machine clutches B and b'. By making the sewing machine 10,10'
In FIG. 6, a magnetic body j is fixed to the driving side main body f, and a proximity switch k is fixed to the driven side main body g. At any given point in time, when the single position clutch is energized, the driving side main body f and the driven side main body g are in the position shown in the figure. 1 When the driving side main body f rotates in the direction of the arrow C in the figure and the groove h on the driving side main body f matches the protrusion 1 on the driven side main body g, the proximity switch k fixed to the driven side main body g detects the magnetic body j fixed to the drive-side main body f and transmits an electric signal.

This signal is applied to the clutch B for the sewing machines 10 and 10' mentioned above.
By sending the signal bk, it is possible to synchronize the drive of the sewing machine. Then, the proximity switch k, magnetic body j, etc. extract the driving force for the sewing machine (rotating equipment) from the drive source via the electromagnetic clutch, and sense the mechanical transmission of the single position clutch to operate the electromagnetic clutch. It forms an operating mechanism to Furthermore, although not shown in this device, there is a sewing machine clutch B.
, b' are generally used electromagnetic clutches, and the time from receiving an electric signal to actually transmitting the drive is so short as to cause no problem in use. However, using the present invention, this time lag can also be removed. That is, either measure the time shift in advance and shift the relative positions of the proximity switch k and the magnetic body j by that amount, or
By shifting by more than that amount and using a timer or the like, the time difference can be eliminated. An embodiment of the device of the present invention has the above-described configuration and operation.According to the present invention, the operations of rotating equipment on a plurality of lines can be synchronized. The practical effect of this method is that the parts produced in this process can be sent to the next process in an orderly and continuous manner, thereby improving product production efficiency.

[Brief explanation of drawings]

The drawings are schematic explanatory diagrams of one embodiment of the present invention, in which Fig. 1 is a layout diagram of each device on a plurality of production lines, Fig. 2 is a side view of a cotton fabric storage A and an absorbent material appropriate amount supply cutting device B, Fig. 3 is a side view of a sewing machine for sewing a cord for taking out a cut cotton transfer device and a fixed length cutting device for taking out a string, Fig. 4 is an explanatory diagram of the operating state of the alignment and transfer device, and Fig. 5 is a tuning device of the present invention. FIG. 6 is an explanatory diagram of the detection state of the single position clutch during mechanical drive transmission.

Claims (1)

[Claims] 1. A single position clutch is disposed on each of the plurality of lines, each consisting of a driving side body having a concave portion and a magnetic material fixed thereto, and a driven side body having a convex portion and having a proximity switch fixed thereto, and A rotating device is installed on each line via an electromagnetic clutch, and by actuation of the single position clutch, the coincidence of the concave part of the driving side body and the convex part of the driven side body is detected by a proximity switch and a magnetic body,
A rotating device installed on a plurality of lines, characterized in that it is provided with an actuation mechanism that operates an electromagnetic clutch in response to the sensing signal, and is provided with a single drive source that drives each rotating device on the plurality of lines. tuning device.