JPS627601Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a transport device for a hanging tool that sequentially moves sewn products from one place to the next in assembly line work such as a sewing factory, and its purpose is to: The objective is to improve the efficiency of this type of work by making the flow of a series of work smoother, and even if a traffic jam occurs at a certain work location, the overall flow of work will not be disrupted.

In recent years, some garment factories have installed a chain circuit that circulates around the factory instead of the conventional hand-carrying or hand-pushing hangers, and using this as the main circuit, branch chains are established for each work location. A mechanical transportation method is adopted in which the worker pulls the hanging tool suspended from the main circuit into the branch chain each time, and when the work is completed, returns it to the main circuit and sends it to the next work location. However, with this method, the chain of the main circuit must be kept in constant operation, which not only causes problems such as power costs and noise generation, but also the stagnation of work at one location can directly cause work to be carried out at the next location. Many problems still remain that need to be improved, such as problems in the process that affect the quality of the product, and contamination of conveyed items such as chains with oil.

In view of these circumstances, the present invention solves all of the problems of the chain drive system by using almost no power and making the hanging tool self-propelled.

Hereinafter, the configuration of the present project will be explained in detail according to the embodiment shown in the drawings.
a descending rail with a gentle slope in the transport direction;
Reference numeral 1' denotes a rising rail that connects the descending rails 1 and 1'', and is made of steel or aluminum and has a round, square or T-shaped cross section.

Also, 2, 2' are located near the upper end of the descending rails 1, 1'' (point C), and 3, 3' are located near the lower end (point B).
4 and 4' are provided at the middle point (point A) of the descending rail, and two stop cylinders whose pistons operate alternately, and 5 and 5' are the This is a limit switch that controls the operation of each cylinder 4, 4'.

Next, 6, 6, . It consists of an arm 6'' with a sewn product hanger (not shown) attached to and detached from the lower end of the arm.

Furthermore, 7 is a lifting cylinder having a piston expansion/contraction amount commensurate with the length of the above-mentioned ascending rail 1'',
A hook 7'' mounted on the tip of the piston 7' can be engaged with and detached from the hanging tool, and when the piston 7' is lowered, the hook 7'' pushes the lifting tool at point B from above. This prevents the hanging tool from floating when the hanger is attached. In the figure, reference numerals 8, 8, . . . indicate support legs for each of the above-mentioned rails, but each rail may optionally be suspended from the ceiling instead of using the support legs.

To explain the operating procedure of the present invention according to the above configuration, when a predetermined work is completed at the work location below point B in Fig. 1, and the worker sends a signal using a foot switch, etc., based on this signal, The lifting cylinder 7 is activated.

In this case, the piston 7', which has already been extended and whose hook 7'' engages with the lifting fixture 6 at point B, shortens and pulls the lifting fixture to the next position along the ascending rail 1'. It is sent to the upper end point C of the descending rail 1''.

However, if the preceding lifting tools are stuck at point C and are in a "waiting" state, the lifting cylinder 7 will not operate.

On the other hand, when there is no hanging tool at point B, limit switch 3 at point B, limit switch 5 at point A,
stop cylinder 4, actuated via 5';
4', the piston of the lower cylinder 4 at point A retreats, and one of the hanging tools 6, which is locked thereto, gently rolls to reach point B.

During that time, the upper cylinder 4' at point A projects its piston and locks the following lifting tool 6, and when the limit switch 3 at point B is turned ON again upon arrival of the lifting tool, A, which had been in the protruding state until then, The piston of the upper cylinder 4' at the point is retracted, and at the same time the piston of the lower cylinder 4 is automatically returned to the state of protruding and locking the hanger.

As is clear from the above description, the proposed device alternately combines a gradual descending part in which the lifting tool freely rolls and a rising part in which the lifting tool is pulled up by the action of a cylinder, thereby raising and lowering the lifting tool. A zigzag rail is constructed to ensure that only one lifting tool is sent to the lower end of the descending rail where the work is to be done, and the lifting tool that has completed its work is quickly sent to the next process based on a signal from the worker. However, if there is a traffic jam in the production line, it automatically stops the delivery and prevents confusion in the overall process.

Therefore, as stated at the beginning, the device of this invention can solve all of the problems seen in chain-type conveyance devices that have been conventionally adopted in some sewing factories. The proposed device, in which most of the lifting is carried out by the self-propulsion of the hanging tool, can greatly reduce the consumption of excess power, and its energy-saving effect is extremely significant.

[Brief explanation of the drawing]

Figure 1 is a front view showing the main parts of the proposed device;
The figure is a plan view thereof, and FIG. 3 is a front view showing an example of the hanging tool. In addition, in the figure, 1, 1''... descending rail, 1'... rising rail, 2, 2', 3, 3', 5, 5'... limit switch, 4, 4'... stop cylinder,
6... Hanging tool, 6'... Roll with flange, 6''... Arm, 7... Cylinder, 7'... Piston, 8...
...Support legs.

Claims (1)

[Scope of utility model registration request] A descending rail and a rising rail on which the rollers of the lifting device can roll are connected alternately to construct the structure, and two stop cylinders that operate alternately are placed in the middle of the descending rail, while a stop cylinder is installed on the rising rail. A lifting cylinder is provided with a lifting cylinder whose piston moves to expand and contract over its entire length, and each of the cylinders is electrically interlocked via a limit switch that operates depending on the presence or absence of a lifting tool. Carrying device for holding tools.