JPS61262497A - Conveyor for multi-stages press - Google Patents

Abstract

PURPOSE:To improve the productivity of a press line by disposing a conveyor which permits the change of span to two kinds of presses having different spans between hot plates. CONSTITUTION:The conveyor is constituted of an outer casing 1 and an inner casing 2. Mounting rollers 7 and a casing lifter 8 are provided to the casing 2. Works are mounted on the rollers 7 and are lifted by one step by the device 8 while the casing 2 is held lowered to the lowermost end. The works for the required number of steps are mounted by repeating such operation. The conveyor is moved to the position before the multi-stages press by the rotation of wheels 10. The mounting of the works is separately executed by means of a hydraulic cylinder 9 and stopper nut according respectively to the case in which the span between the hot plates of the press is wide and the case in which said span is narrow. One conveyor is made applicable to two units of the presses having different spans between the hot plates by the above- mentioned method and therefore the productivity of the line is improved.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a device for loading and unloading workpieces into and from a multistage press, and a device for transporting workpieces into and out of two types of multistage presses with different spans between hot platens. The present invention relates to a conveying device for a multi-stage press that is suitable for.

[Background of the invention]

Conventional multi-stage press transport devices only allow the height of the entire press to be adjusted (a), and the span between the heating plates is fixed, which is a problem. Therefore, multi-stage presses are installed on the same line.

It was necessary to make the span between the hot plates the same, and even when adding a new press to the line, there was a restriction on the span between the hot plates. However, with the growth of the computer industry, the demand for laminated adhesive printed circuit boards has increased, and the number of manufacturers producing the multi-stage presses required to produce these circuit boards has increased, leading to the production of machines with different spans between heating plates. became. However, due to the difference in span when adding a press, it has become impossible to add a high-performance multi-stage press to the line. Note that Japanese Utility Model Application Publication No. 49-121463 is cited as related to this type of device.

[Purpose of the invention]

The purpose of the present invention is to provide two heating platens on the same line with different spans between the heating plates.
It is an object of the present invention to provide a conveying device for a multi-stage press, which allows a single conveying device to smoothly convey works between the presses in a line in which various types of multi-stage presses are arranged.

[Summary of the invention]

Conventional transport equipment for multi-stage presses requires a device to hold the workpiece and insert/take it out from the press, and the space of the transport equipment itself is small, making it impossible to adjust the span. However, in the present invention, two types of span adjustment are possible by using linear bearings to support each stage of the conveying device, and by raising and lowering the entire conveying device using cylinders, etc. did.

[Embodiments of the invention]

An embodiment of the present invention is shown in FIGS. 1 and 2 below.

This will be explained with reference to FIG. The conveying device for a multistage press in this embodiment consists of an outer casing 1 that supports the entire device and an inner casing 2 for mounting the workpiece.With the inner casing 2 lowered to the lowest end, the workpiece (copper plate and resin laminated) is transferred from the conveyor etc. The inner casing 2 is transferred to the mounting roller rough inside the inner casing 2, and the inner casing 2 is raised one step by the inner casing 2 lifting device 8. When the inner casing 2 is raised, the guide rollers 3 are used to prevent the inner casing 2 from being misaligned with respect to the outer casing 1. By repeating this operation by the required number of stages, as many works as the number of stages in the main transport device are loaded. Here, the machine is moved to the front of the multi-stage press to be transferred by rotating the wheel lO using a motor or the like. The guides for each stage of the work loading roller of this device are a guide bar 4 and a linear bearing 5.
The positioning of each stage is performed by a guide screw 12 and a spring 6. The power for the span su is provided by supplying oil from the hydraulic system 11 and moving the hydraulic cylinder 9 up and down. Next, span adjustment of this device will be explained using FIGS. 2 and 3. The stopper nut 13 is adjusted in advance to correspond to the wider span between the hot plates of two types of multi-stage presses, and when loading a workpiece on the multi-stage press with the wider span, use the hydraulic cylinder shown in Figure 1. By keeping the roller 9 in a lowered state, the span between the mounting rollers is determined by the weight of the workpiece and the position of the stopper 13 by the action of the spring 6, resulting in the state shown in FIG. 3. On the other hand, when transferring a workpiece to a multi-stage press with a narrower span between hot platens, by raising the hydraulic cylinder 9 shown in Fig. 1, the guide par 4 is fixed, the linear bearing 5 is raised, and the span between the mounted rollers is lifted. This corresponds to a multi-stage press with a narrow span between heating plates as shown in Fig. 2.

〔Effect of the invention〕

According to the present invention, two types of multi-stage presses with different spans between hot platens are installed on the same production line, and it is possible to transport with one conveyance device, and by adjusting the position of the stopper nut, any nameplate can be produced. Since it can accommodate a gap of 7, there is no need to install a new conveyance device when adding a multi-stage press, and it is easy to automate the upper line, which can reduce both initial cost and running cost, and improve productivity.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of a conveying device using the present invention;
FIGS. 2 and 3 are sectional views of essential parts of the span adjusting device shown in FIG. 1. l... Outer casing, 2... Inner casing %3... Guide roller, 4... Guide bar, 5
...Linear bearing, 6...Spring, 7...
- Work loading roller, 8... Inner casing lifting device, 9... Hydraulic cylinder, lO... Wheel, 11.
... Hydraulic device, 12... Guide screw, 13... Stopper nut.

Claims (1)

[Claims] A conveying device for a multi-stage press, characterized in that the span of the conveying device can be changed to correspond to two types of presses having different spans between hot platens, in a device for inserting and taking out workpieces into a multi-stage press.