JPH06218589A - Transfer press - Google Patents

Abstract

PURPOSE:To miniaturize a press by individually providing a blanking slide and a transfer forming slide between spans of a space been left and right uprights. CONSTITUTION:A pair of front and rear beams 1c are laterally expanded between left and right uprights 1b erected on a bed 1a, and a slide driving mechanism 8 is provided between these beams 1c. A blanking slide 3 and a transfer forming slide 4 driven with the slide driving mechanism 8 are respectively provided between the left and right uprights 1b, and together a moving bolster 5 is provided on a lower side of these slides 3, 4. Because the blanking slide 3 and the transfer forming slide 4 are made respectively individual, the influence of a vibration generating in a time of blanking process is hardly spread to the transfer forming.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer press having a blanking process.

[0002]

2. Description of the Related Art In a transfer press used in a conventional coil line, a blanking process is provided on the upstream side, and the coil material is blanked into a work having a required shape in the blanking process. As a method for providing a blanking step in the above, a method of providing a blanking press on the upstream side of the transfer press, a method of providing a blanking die on a slide of the transfer press, etc. are generally adopted.

[0003]

However, in the former method of providing a blanking slide, two blanking slides are provided outside the left and right uprights (spans) of the transfer press in another span, so that two moving bolsters are required. As a result, the press itself becomes expensive, and the entire process becomes long, such as the need to install an idle station between the blanking process and the transfer molding process.Therefore, there is a problem that a lot of space is required to install the press. It was

Further, in the latter method of providing a die for blanking on the same slide, the ability of the transfer press itself must be raised in order to increase the blanking ability, which is uneconomical and occurs during blanking processing. There are some problems such as vibration due to breakthrough that adversely affects transfer molding, and tilting of the slide causes failure. The present invention has been made to solve such a problem, and provides a transfer press capable of installing a blanking process and a transfer molding process within one span without the influence of the blanking process affecting the transfer molding process. The purpose is.

[0005]

In order to achieve the above-mentioned object, the present invention has a pair of front and rear beams extending horizontally between left and right uprights standing on a bed, and a slide drive mechanism between these beams. Further, a blanking slide driven by the slide drive mechanism and a transfer molding slide are respectively provided between the left and right uprights, and one moving bolster is provided below these slides.

[0006]

[Operation] Since the blanking process and the transfer molding process can be provided in one span with the above configuration, the whole process can be shortened, and the blanking slide and the transfer molding slide are independent. It is unlikely that the transfer molding process will be affected by vibrations that occur during the ranking process.

[0007]

Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical sectional view of the transfer press, and FIG. 2 is a side view of the same. In these figures, 1 is the press body,
Upright 4b on the bed 1a at the front, rear, left and right
Is erected, and the beam 1c is horizontally installed between the upper ends of the left and right uprights 1b. As shown in FIG. 2, the beam 1c is arranged at the front and rear and is formed with high rigidity.
It is fastened via a tie rod 2 inserted through the inside.

A blanking slide 3 and a transfer molding slide 4 are installed between the uprights 1b, and a moving bolster 5 is installed below them. The blanking slide 3 is located on the upstream side of the press body 1, and the transfer molding slide 4 is located on the downstream side. The blanking slide 3 is guided by a slide guide 6 laid vertically on the inner surface of the beam 1c. It can move up and down, and each slide 3,
A slide drive mechanism 8 is installed above 4 to extend between the front and rear beams 1c. The slide drive mechanism 8 has a drive shaft 12 rotated by a main motor 9 via a clutch 10 and a brake 11.
2 is provided with three pinions 13, these pinions 13 are provided, and these pinions 13 are provided with a main gear 14 provided for each point 3a, 4a, 4b.
Is meshed with. The points 3a, 4a and 4b are provided at one location on the blanking slide 3 and at two locations on the transfer molding slide 4.

On the other hand, each main gear 14 has three points
It is attached to the eccentric shaft 16 provided for each of a, 4a, and 4b, and the upper end of the connecting rod 17 is supported by the eccentric shaft 16. The lower end of the connecting rod 17 is connected to each of the points 3a, 4a, 4b via a plunger 18, so that the blanking slide 3 and the transfer molding slide 4 are vertically driven as the eccentric shaft 16 rotates. Has become. Further, a blanking mold 19a is mounted on the lower surface of the blanking slide 3, and a transfer molding mold 19b is mounted on the lower surface of the transfer molding slide 4, respectively.
A blanking and transfer molding die 19c is also mounted on the moving bolster 5.

Next, the operation of the transfer press having the above structure will be described. Below the blanking slide 3 provided on the upstream side, coil material is supplied from a coil line (not shown), and this coil material is subjected to a blanking process. It is processed into a work of a predetermined shape. Then, this work is sent to a transfer forming process by a transfer feeder (not shown), and is sequentially formed at each processing station W ₁ , W ₂ , W ₃ ... With the vertical movement of the transfer forming slide 4, and at the final processing station W ₅ . The work that has been molded is carried out of the press body 1. Hereinafter, the above operation is repeated to form a molded product from the coil material supplied from the coil line. By setting the motion phases of the blanking slide 3 and the transfer molding slide 4 in advance, the clutch torque is set. It is possible to reduce the influence of vibration due to breakthrough that occurs during the blanking process on the transfer molding process.

[0011]

As described above in detail, the present invention provides the blanking slide and the transfer molding slide independently between the left and right uprights (1 span), so that the blanking slide and the transfer molding slide are separated from each other. There is no need to set up an idle station in. As a result, the whole process can be shortened, which facilitates downsizing of the press and also requires less space for installation. Also, by making the motion phase of the blanking slide different from that of the transfer molding slide, the blanking capacity can be increased without increasing the clutch capacity, and the influence of vibration due to breakthrough that occurs during the blanking process can be transferred to the transfer molding. Since it can be reduced, the transfer molding can be performed with high accuracy. Moreover, since only one moving bolster is required, it is economical.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a transfer press showing an embodiment of the present invention.

FIG. 2 is a side view of the transfer press according to the embodiment of the present invention.

[Explanation of symbols]

1a ... bed, 1b ... upright, 1c ... beam, 3 ...
Blanking slide, 4 ... Transfer molding slide, 8 ... Slide drive mechanism.

Claims (1)

[Claims] 1. A pair of front and rear beams 1c are horizontally provided between left and right uprights 1b standing on a bed 1a, and a slide drive mechanism 8 is provided between the beams 1c, and the left and right uprights 1b are provided with the slide drive mechanism 8. A transfer press in which a blanking slide 3 driven by a slide drive mechanism 8 and a transfer molding slide 4 are provided respectively, and one moving bolster 5 is provided below the slides 3 and 4.