JPS628903Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stocking device for punched products, and particularly to a device for stocking a punched motor core and taking it out from a press.

FIG. 1 is a perspective view showing an example of a punched plate motor core, which is an example of a punched part to be stocked in this invention. In the figure, 1 is a stator core, and 2 is a rotor core.

Conventional stocker devices for such punched motor cores include those shown in FIGS. 2 and 3. FIG. 2 is a perspective view showing a punching core stocker in a conventional automatic press, and FIG. 3 is a sectional view of the conventional automatic press to which this stocker is attached. In the figure, reference numeral 11 indicates a stock shaft for the stator core, and reference numeral 12 indicates a stock shaft for the rotor core, which are each mounted vertically on a stocker 13 so that their positions can be adjusted. Stotzker 13 is 4
It has two wheels 13a and is movable on rails 14. 15 is a lift stand that supports the rail 14; 16 is a bearing that supports the guide shaft 17 on which this lift stand slides; 18 is the lift stand 15.
19a is a cutting die for punching the motor core, 19b is a cutting die holder that holds this cutting die, 20 is a bolster that supports this cutting die holder, 21 is a press body that supports this bolster, etc., 22 is a clamp bolt.

Next, the operation will be explained. The stocker 13 mounted on the rail 14 is manually pushed into the press body 21 and transferred onto the lift table 15 as shown in FIG. 3. Next, the cylinder 18 is actuated by hydraulic operation, and the stocker 13 is raised to a predetermined position. The press is activated by installing the stocker,
The stator core 1 and rotor core 2 punched by the punching die 19a are accumulated on the stocker shafts 11 and 12. When a predetermined quantity is loaded, the press is automatically stopped by a counter and the lift 15 is lowered to the insertion port. Thereafter, it was manually removed from the aircraft and replaced with a new stocker.

However, in the conventional apparatus, the loading and unloading of the stocker into and out of the press had to be carried out manually, which was troublesome and caused back pain. Furthermore, since there was no serration device to replace the stocker, the press had to be stopped each time, making it less efficient than the chute method.

This invention was made in order to eliminate the drawbacks of the conventional stocking device as described above, and the aim is to provide a stocking device for punched products that can be operated continuously and automatically by installing a serration mechanism in the press. The purpose is

An embodiment of this invention will be described below with reference to the drawings. FIG. 4 is a perspective view (corresponding to FIG. 2) showing a stocker according to an embodiment of this invention, and FIG. 5 is a cross-sectional view of an automatic press equipped with a stocking device according to an embodiment of this invention (corresponding to FIG. corresponding), Figure 6 is
FIG. 7 is an enlarged cross-sectional view of FIG. 6, and FIG. 8 is a cross-sectional view corresponding to FIG. 5 showing a completed condition of cutting.

In the drawings, the same reference numerals indicate the same or equivalent parts as those in Figs. Several pieces are fitted in and serve as floaters.
A disk 25 is provided on the stator stock shaft 11 to prevent rotation of the stator core 1.
It is made to float by a helical spring 26, and descends due to its own weight due to the accumulation of stator core 1. A stocker 27 corresponds to the stocker 13, and the stator stock shaft 11 is directly attached to the stocker plate 27a, and the rotor stock shaft 12 is attached via a guide plate 27b. Two bushes 27c provided on the stocker plate 27a are holes for positioning, and the guide plate 27b can be adjusted to match the punching core pitch.

28 is a rail, 29 is a roller guided by this rail, and 30 is a serration claw attached to the bolster 20, which is fitted into two guide pins 32 and pushed up by a spring 33 to support the It is attached to the cylinder 34 via a metal fitting 31. Further, this serration claw 30 is configured in the shape of a nozzle, and has a blowhole 30a formed therein and is open at the tip. A drawing ring 19c is attached to the cutting die holder 19b in order to separate the stator core 1 and the rotor core 2 one by one, and a guide tube 35 is connected to the lower end of the drawing ring 19c. 36 is the press body 21
The stocker 27 is positioned in the lift 37 through a bushing hole 27c, is guided inside the mount 36 by rails 28 and rollers 29, and is moved up and down by a chain mechanism (not shown). Being able to do so. 38 is an elbow that connects the nozzle hole 30a to the air pipe 39, and 40 is a micro switch that operates when the serration claw 30 is lowered in the protruding state.

Next, the operation will be explained. The core is punched out using a press in exactly the same way as in conventional equipment. In this embodiment, the stocker 27 is circulated by a lift and a conveyor (not shown), and after the stocker 27 is first attached to the lift 37, it is fed into the press body 21, lifted and positioned. Then the press starts operating. The punched stator core 1 and rotor core 2 fall into the punching die holder 19b, and when it is full, the stator core 1 and rotor core 2 are pushed out one by one by the drawing ring 19c, and the stack shafts 11, 12 are pushed out.
It enters, falls and is piled up. The falling cores 1 and 2 are attached to the magnets 2 built into the stack shafts 11 and 12.
When passing 3 and 24, a float phenomenon occurs and the speed slows down, keeping it level as it falls. When the stock shafts 11 and 12 are loaded with a predetermined amount, the air cylinder 34 is actuated by a signal from the press, and the pawl 30 moves forward while blowing air from the blowhole 30a between the floated cores 1 and 2. , and the segi effect begins. After the stocking is completed, as shown in FIG. 8, the lift 37 loaded with the stocker 27 immediately descends and automatically replaces the stocker with a new stocker. During this time, the press continues to operate, so the cores 1 and 2 are piled up on the serration claws 30 so that they sink. If it is not possible to replace the press within this extra time, the micro switch 40 will be activated due to the subsidence of the serration pawl and the operation of the press will be stopped.

In the above embodiment, the mounting of the stocker 27,
Although the lift 37 is used for taking out, the present invention is not limited to this, and for example, a conventional stocker 13 may be used to automatically attach and take out. Further, the structure of the stock shaft is not limited to that of the embodiment, and can be changed in accordance with the shape of the punched part, and the structure of the magnet and serration plate is also not limited to that of the embodiment.

Further, in the above embodiment, the case of a stocking device for a punched motor core has been described, but the present invention can also be applied to a stocking device for other punched parts.

As described above, according to this invention, by installing a serration mechanism in the stocking device, continuous and automatic operation is possible without stopping the press during replacement, which is a disadvantage of the stocker method, and rotation prevention provided on the stocking shaft. Since the plate and the cutting claws are supported by springs, it is possible to prevent the rotation of the punched products and allow them to accumulate.Also, since there is a blow hole that opens at the tip of the cutting claw, the cutting claws can be easily moved between the accumulated punched products. This has the effect of shortening setup time and significantly improving work efficiency.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the motor core after punching, Figure 2 is a perspective view showing a punching core stocker in a conventional automatic press, and Figure 3 is a sectional view of a conventional automatic press with this stocker installed. ,
FIG. 4 is a perspective view (corresponding to FIG. 2) showing a stocker according to an embodiment of this invention, and FIG. 5 is a cross-sectional view of an automatic press equipped with a stocking device according to an embodiment of this invention (corresponding to FIG. 6 is an enlarged sectional view of FIG. 5, FIG. 7 is a sectional view corresponding to FIG. 5, and FIG. 8 is a sectional view corresponding to FIG. In the drawings, the same reference numerals indicate the same or corresponding parts, 1 is the stator core, 2 is the rotor core, 1 is the stator core, 2 is the rotor core,
1 is a stator stock shaft, 12 is a rotor stock shaft, 13 and 27 are stockers, 19a is a cutting die, 19b is a cutting die holder, 20 is a bolster, 21 is a press body, 23 and 24 are magnets, and 30 is a cutting claw. , 33 is a helical spring, and 34 is an air cylinder.

Claims (1)

[Scope of utility model registration request] A stock shaft for storing and taking out punched products, a magnet provided circumferentially on this stock shaft to float the punched products, and a magnet supported by a spring on the stock shaft so that the weight of the punched products is lowered by accumulation of the punched products. a rotation prevention plate provided on the stock shaft, and a blowhole that opens at the tip so as to be thrust between the floating punched products when a predetermined amount of punched products are stocked on the stock shaft. A stocking device for punched products, characterized in that it is equipped with a serration claw supported by a spring.