JPS6265815A - Conveyer system for sewing - Google Patents

Abstract

PURPOSE:To enhance the efficiency of handling and to aim at shortening the working time, by forming a storing means for carriers conveyed by a conveyer line, in a bucket-like shape, and by arranging such that the storing means passes through below the side end part of a working bed. CONSTITUTION:Carriers 5 storing therein all parts of garments, are conveyed by a conveyer line along which a plurality of work positions to which work beds T such as, for example, sewing machine tables, iron tables or the like are laid. The conveyer line is constituted by alternately arranging round pipe conveyer paths 7 communicating between process step work positions and lift means 8 disposed between respective adjacent conveyer paths 7, the conveyer paths being sloped downward. Further, a curved bypass 13 is provided in the midway of the conveyer path 7, and the moving locus of a bucket-like storing means 15 arranged at the lower end of the carrier 5 is set such that it transversely crosses a space below the side end section of the work bed T.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conveyor system for sewing clothes and the like in an assembly line system.

[Conventional technology]

Conventional sewing conveyor systems can be roughly divided into:

Buckets containing parts and blanks move on a conveyor installed on the floor. The so-called bucket method is typified by, for example, Japanese Patent Laid-Open No. 58-47653. Hang and hold parts and blanks on a hanger-like carrier 9
It can be roughly divided into a hanger type, in which the carrier is moved along a rail placed above the worker.

In the bucket system, the conveyor line is originally installed at a low position above the floor. Therefore, as shown in Fig. 8, the conveyor 3A can be positioned below the left half of the sea urchin workbench T, and the bucket 15 can move the side of the seated worker.
By arranging it so that it passes through.

Handling such as taking out parts from the bucket 15 and returning sewn blanks to the bucket 15 can be performed quickly and easily. By improving the efficiency of handling, it is possible to improve the actual working time, such as the operating rate of the sewing machine.

However, compared to the one-hanger type described below, the bucket system requires a larger installation space for the entire conveyor system to obtain the same production volume, and the work area may be divided by the conveyor line, causing the movement of people and goods within the factory. becomes difficult. When arranging the work positions at the same adjacent spacing as with the one-hanger type, it is not possible to ensure a sufficient amount of blanks to be stocked while processing in each process, resulting in variations in the throughput due to differences in the difficulty and skill level of the nine operations. This makes it difficult to make adjustments and makes it difficult to perform assembly line work smoothly.

The hanger method has advantages and disadvantages that are exactly the opposite of those of the bucket method. In other words, since parts and blanks are hung and held on hanger-like carriers, the space occupied by each Kina 9F is small, and even if the process interval is considerably reduced, a sufficient amount of idle carrier can be kept during processing. It can be stocked on the rail.

Therefore, it is easy to adjust the progress of a task depending on the difficulty or skill level of each task.

However, the bucket method is far superior in terms of ease of handling. With one-hanger type, firstly, it is necessary to arrange the rails so that the carrier itself or the blanks hung on it do not come into contact with a workbench such as a sewing machine table, and secondly, for this purpose, the carrier must be placed at a higher position than the operator. 2) It is difficult to handle the parts while seated (in many cases, the structure of the parts hanger is such that parts can be removed by pulling them upwards); and 3) This is because it is necessary to carry out sewing with the entire body of the garment placed on top of the garment, and the passage position of the worker and the carrier are separated by the width necessary to place the body. In short, efficiency in handling has been hindered because it is difficult to hang.

[Problem that the invention seeks to solve]

As mentioned above, the conventional sewing conveyor system.

Each method had its advantages and disadvantages, and it was not possible to achieve efficient production. There is also a problem in terms of versatility.9 For example, the one-hander hanger method is often used for sewing long items such as slacks, where removing the blank from the carrier is unnecessary in most processes, while the bucket method is difficult to handle. Taking advantage of its ease of use, it was used for sewing short items such as jackets that had many parts, but both had limited uses.

The present invention aims to obtain a sewing conveyor system that is highly productive and highly versatile by simultaneously achieving a sufficient stock of ready-made blanks during processing in each process and increasing the efficiency of handling. With the goal.

[Means for solving problems]

The present invention is based on a one-hanger type that allows line changes such as direction changes and reversals freely, and a U-shaped detour path 13 is formed in the conveyance path 7, for example.

It is possible to increase the length of the transport path between each process without increasing the overall installation space.

The storage means 15 provided on the carrier 5 for storing parts and blanks has a bucket structure that is easy to handle, and the positional relationship between the work table T and the conveyance path 7 is adjusted so that the storage means 15 passes by the side of a seated worker. stipulate.

Specifically, as shown in FIG. 2, work positions W are set between mutually adjacent detours 13 provided in each conveyance path 7, and the work positions W are set between adjacent detours 13 without increasing the interval between the work positions W, that is, the process interval. Only the length of the transport path is made longer. If the storage means 15 is made into a bucket structure, the space occupied by each kina 9f on the conveyor line becomes large, but since the length of the conveyance path between adjacent processes is large, a sufficient number of blanks can be stocked at each process. At each work position W, one end of a workbench T such as a sewing machine table is located directly below the conveyance path 7, and the storage means 15 provided on the carrier 5 is used for the work as shown in FIG. The locus of movement is set so that it passes under the side edge of the platform T, so that the accommodation means 15 passes right beside the worker who is seated directly facing one workbench T.

〔Example〕

1 to 5 show a first embodiment of the invention.

In Fig. 3, the conveyor system has longitudinal frames 1 that are long on the left and right and branch frames 2 extending from these frames.
Conveyor line 3 is arranged along both frames I and 2,
This was supported on each frame 2 via support arms 4, and was constructed in a continuous cross shape as a whole. In the diagram, conveyor line 3
Around the longitudinal frame 1, work positions W are arranged in two rows, front and rear, with the longitudinal frame 1 in between. At each work position W, a work table T such as a sewing machine table or an ironing board is installed.2 For example, the work position W on the left front side is the starting point of the line, and a carrier 5 that stores all the parts of clothing is used here.
When the parts are fed to the conveyor line 3, each time the carrier 5 passes through each work position W, the parts are sewn up in order.

The product is completed after going around conveyor line 3.

In FIGS. 2 to 4, the conveyor line 3 includes a conveyance path 7 made of a round pipe that connects the work positions W of each process, and a lift means 8 provided between each adjacent conveyance path 7. They are arranged alternately to form a series.

The conveyance path 7 has a downward slope of 6 to 9 degrees from the work position W of each process to the work position W of the next process so that the carrier 5 can roll and move under its own weight. The lift means 8 is a conveyance path 7 on the front process side parallel to the longitudinal frame 1.
The lower end of the slope and the upper end of the subsequent slope of the conveyance path 7 on the post-process side are connected in an upward slope. Therefore, in the conveyor line 3, the conveying path 7 having a gentle downward slope and the lifting means 8 rising at a steep angle are continuous like a saw blade.

The lift means 8 is not particularly limited.

The figure shows a chino 1 supported between a pair of frames 9 via a sprocket 10, and a motor 1 that rotationally drives the chino.
2, etc., and locks the roller 6 with the load claw 1) a fixed to the circumferential surface of the chino 1) and lifts the carrier 5.
The process moves to the next conveyance path 7.

In FIGS. 1 and 3, each conveyance path 7 is made to go around the branch frame 3 between mutually adjacent work positions W to W to form a U-shaped detour 13 that is vertically long in plan view. Both sides of each work position W are divided by this detour path 13, and the length of the conveyance path 7 facing each work position W is increased.

The stock amount of the carrier 5 can be increased.

It is preferable that the width of the detour path 13 is as narrow as possible in order to prevent an increase in the installation space of the conveyor system. Determine its width based on the minimum bending radius to be obtained. In the illustrated example, detour 1
The width of work position W sandwiched between 3 is 140CI! 1
In contrast.

The width of the detour 13 was set to 50 cm.

The carrier 5 is composed of a bucket-shaped storage means 15, an arm 16 that suspends and supports this, and a roller 6 that is freely rotatably supported at the upper end of the arm 16. To facilitate handling, the storage means 15 is formed into a square box with an open top, and a U-shaped frame 17 for supporting the sewn blank is arranged near the top opening. In the storage means 15, parts arranged in order of process are arranged in an orderly manner from bottom to top.

Carrier 5 sent from the previous process along detour path 13
The robot is temporarily stopped at a work position B right next to the worker who is seated directly facing the workbench T. for that.

A gate means 18 is provided on the conveyance path 7. This gate means 1
As shown in FIG. 2, the roller 8 is equipped with a claw-shaped stopper 19 that locks and holds the roller 6, and an air cylinder 20 that switches the stopper 19 between a locking position and a locking position.

In order to minimize the distance between the two workers and the accommodation means 15 at this working position B, when using the conveyance path 7 as a reference, the straight line near the end of the detour path 13 and the left end of the workbench T are Nine workbenches T are arranged so as to overlap one above the other. In addition, the height of the conveyance path 7 is set so that the storage means 15 passes through the dead space below the side end of the first workbench T, and the height of the storage means 15 at the second work position is adjusted to the height of the workbench. It is designed to be as low as or lower than T9, so that it can be easily handled while sitting in the same position.

After passing through the side edge of the workbench T, the carrier 5 is located at the lower end of the slope of the conveyance path 7, directly facing one worker.

That is, it moves to lift position A. The height of the storage means 15 at this position is lower than the height at the second work position B by the slope of the conveyance path 7, and the storage means 15 is at a lower position than the workbench T. The sewn blank is returned to the storage means 15 by utilizing this height difference. That is, the chute 21 is extended from the second workbench T toward the top of the opening of the storage means 15 located at position A, and the sewn blank is returned to the storage means 15 via this chute 21. Due to this.

After finishing the sewing work, the operator can return the blank to the storage means 15 by simply pushing it out onto the shade 21.

For example, the gate means 18 and the lift means 8 are activated simultaneously by a command signal from the operator, and the carrier 5, which had been stopped at the work position B, is transferred on the conveyance path 7 and moved to the lift position A. do.

The carrier 5 at the lift position A is lifted by the lift 1 and means 8 and transferred to the conveyance path 7 for the next process.

Therefore, one worker takes out the blank and sewn parts from the carrier 5 at work position B, issues the above-mentioned command signal, sends the processed carrier 5 at lift position A to the next process, and at the same time removes the parts. The carrier 5 taken out is moved to the lift position A. Note that the carriers 5 stocked in the conveyance path 7 are adjacent to each other in a state where the storage means 15 are in contact with each other, but the gate means 18 locks the stopper 19 and immediately locks the carriers 5 after the roller 6 passes. Since the stopper 19 is swung back to the position, two or more carriers 5 are not sent between one work position B and the lift position A.

For example, at work position W where ironing work is performed, a blank may be taken out at work position 9 and the processed blank may be returned to carrier 5 at work position B again.

In this case, after returning the blank, a command signal is issued to operate the gate means 18. Further, when the carrier 5 reaches the lift position A, it is detected by a microswitch or the like, and the lift means 8 is operated for a certain period of time. In this way, depending on the process, handling may be performed only at work position B.

Depending on the object to be sewn, work may not be performed at all work positions W. In many cases, there are several spare work positions W. In this case, gate means 1
8 is always in the released state, and the lift means 8 is driven intermittently or constantly by the signal from the microsinch as described above, so that the carrier 5 is automatically passed.

Further, as shown by the imaginary line in FIG. 2, a bypass 23 may be provided between the proximal ends of the detour 13 to allow the adjacent work position W to pass through. this is.

Multiple adjacent work positions W for highly difficult work
For example, a preceding worker (often an expert) supplies an unfinished blank to the following worker's work position W while monitoring the processing status of the subsequent worker. However, the processed blank is sent to the tertiary process side via the bypass 23.

[Another example]

FIG. 6 shows another embodiment of the invention. This is the workbench'p
, IJ soft means 8. The arrangement direction of the gate means 18 is different from the previous embodiment. Specifically, the workbench T is arranged parallel to the straight part of the detour 13, and the lift means 8 is arranged at a position corresponding to the upper straight part of the detour 13 in the previous embodiment. Also,
The gate means 18 is provided in the conveyance path 7 slightly above the side end of the workbench T.

In this way, the arrangement of the seven work platforms T, the lift means 8, and the gate means 18 can be changed depending on the shapes of the conveyance path 7 and the detour path 13.

FIG. 7 shows yet another embodiment of the invention.

In this case, the workbench T is positioned so as to avoid vertically overlapping the straight part of the detour 13 and the left end of the workbench T, and the balance weight 24 is loaded on the accommodation means 15 as described above. Different from the example.

FIG. 8 shows another embodiment of the invention relating to gate means 18. In this example, the air cylinder 20 is supported by the bracket 24 and expands and contracts vertically, the stopper 19 is raised and lowered by the air cylinder 20, the steady rest bar 19a moves together with the stopper 19 to stop and hold the arm 16 of the carrier 5, and the carrier 5. A regulating plate 25 that prevents the whole from swinging in the circumferential direction of the conveyance path 7 when it is in a stopped state. The gate means 18 is composed of the guide 26 of the bar 19a and the like. In this case, since the gate means 18 is entirely formed as one unit, the mounting position on the conveyance path 7 can be changed freely. Therefore, it is convenient to change the fixed position of the gate means depending on the size and arrangement position of the two workbenches T.

Furthermore, if this type of gate means 18 is placed on the upper side in the general feeding direction near the lift position A, the stopping position of the carrier 5 can be changed depending on the size of the work table T and the position of the chute 21. can. In this case, after the stopped state is released, the carrier 5 reaches the lift means 8. The lift means 8 may be constantly driven.

In the above embodiment, the conveyor line is arranged in a continuous cross shape, but this is not necessarily necessary and other shapes may be used depending on the number of required processes. The shape of the detour 13 can also be partially changed, and it is not necessary that they all have the same shape. career 5
The housing means 15 can also be changed to a cage structure. The lift means 8 may be changed to, for example, a cylinder-based reciprocating type used in conventional systems.

〔Effect of the invention〕

As explained above, in the present invention, the storage means 15 of the carrier 5 is configured in the shape of a bucket that is easy to handle, and is arranged so that it passes under the side edge of the workbench T, so that it can be placed in close proximity to the worker in the seated position. At an appropriate horizontal position,
Made handling possible. Therefore, handling efficiency can be improved, and the actual working time can be increased accordingly. By providing a detour path 13 in the conveyance path 7, the length of the conveyance path can be increased without increasing the interval between adjacent processes.

Since a large number of carriers 5 can be stocked there, even though the bucket-shaped storage means 5 is used, which occupies a larger space than the conventional one-hanger type carrier, each process In particular, it becomes possible to secure a sufficient stock amount of blanks, and it is possible to easily adjust the progress of work between each process and perform assembly-line work smoothly. Therefore, together with the efficiency of bundling described above, it is possible to realize an improvement in productivity as a whole.

[Brief explanation of drawings]

Figures 1 to 5 show a first embodiment of the present invention, in which Figure 1 is a perspective view of the main parts of the conveyor system, Figure 2 is a plan view of the main parts, and Figure 3 is a plan view of the entire conveyor system. 4 is a view taken along the line D--D in FIG. 2. FIG. 5 is a front view of the lifting means. FIG. 6 is a plan view of essential parts showing a second embodiment of the present invention. FIG. 7 is a front view of main parts showing a third embodiment of the present invention. FIG. 8 is a side view showing another embodiment of the present invention regarding gate means. FIG. 9 is a front view of the main parts of a conventional bucket type conveyor system. 3...Conveyor line. 5...Career. 6... Laura. 7... Conveyance path. 8. Lift means. 13... Detour. 15... Containment means. 18... Gate means. T... Workbench. W...Work position.

Claims (1)

[Claims] (1) A downwardly sloping conveyance path 7 that guides and supports the carrier 5 toward the next process, and a conveyance path that is located between the adjacent conveyance paths 7 and 7 and moves the carrier 5 on the conveyance path 7 on the previous process side to the next process side conveyance path. 7
In a sewing conveyor system in which a series of conveyor lines 3 are constructed by alternately arranging lifting means 8 for lifting upward and moving upward, each conveyance path 7 has a curved detour 13, and adjacent detours 13 - A work position W is set between 13 and a bucket-shaped storage means 15 for storing parts and blanks is provided at the lower end of the carrier 5, and the movement locus of the storage means 15 at each work position W is set at the side edge of the workbench T. The conveyance path 7 is provided with a gate means 18 which is set to cross the space below the workbench back and forth, and which stops and holds the carrier 5 on the side of the worker who is seated directly facing the workbench T. Sewing conveyor system.