JPH0565432U - Press machine - Google Patents

Abstract

(57) [Abstract] [Purpose] It is easy to make a layout when applying a long strip of material to the press machine, and it is possible to make a layout by one person, improving the operability of the press machine. The purpose is to let. [Constitution] In a press device for producing a product by sequentially feeding a long work material 10 and performing a press work in a predetermined step, the work material 10 is manually pitch-fed at the start of working and sequentially worked. Therefore, when the layout is made, the back stop mechanism 16 such as a clamp roller with a one-way clutch is provided so that the workpiece 10 does not return to the supply side due to its own weight.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a press machine used for manufacturing lead frames and the like.

[0002]

[Prior Art]

 When manufacturing products with fine patterns such as lead frames by press working, the press working is set in stages and the press working is performed in order to form the final desired pattern. There is a processing method. In such a progressive feeding process, a long strip is used as the work material for continuous press working.The strip is pitch fed by a press machine and the required press working is performed step by step to exit. A product is obtained which is formed in a predetermined pattern on the side. The punching sequence in actual press working differs depending on the product, but it is not uncommon for one press to perform about 20 steps of press working. In this way, pressing in multiple steps means that different dies are sequentially arranged on the die side according to each of these steps.

By the way, when the steady working is performed by the press working as described above, the work material is processed while being fed at a predetermined pitch, but in the conventional device, the strip-shaped body is moved to the press device at the start of pressing. The setting when calling is a problem. That is, as shown in FIG. 1, the work material 10 is inserted from the entrance side of the press device 20 and gradually processed, but the work material 10 is simply a flat plate and is used for positioning in advance. This is because, since no holes are provided, it is not possible to properly support and press the strip at the start of processing.

Therefore, conventionally, the material to be processed is manually fed from the die on the entrance side by one pitch at the start of processing, and a press operation is carried out once to sequentially reach the die at the final end. After moving all the way through a series of processing steps, the machine switches to automatic feed and presses. It is only after the work material has been sent through a series of processing steps that the material is switched to automatic processing. After a series of machining steps is completed, the work piece is automatically positioned and can be machined continuously. In this way, the setting is done while manually feeding at the processing start stage.The press equipment has ejectors installed upwards at various places on the die, so that the work material is simply placed at the entrance of the equipment. This is because if you insert it and feed it automatically, the tip of the work piece will be locked by this ejector and you will not be able to advance it. In this way, setting work while pitch-feeding the work material until it can be automatically fed is called layout creation.

As a method of simply processing without making the layout as described above, the material to be processed is drawn from the entrance of the press machine to the mold position at the final end at the processing start stage, and is automatically fed as it is. There is also a method of processing with. In this method, some steps on the tip side of the work piece are not used as a product, but in addition to wasting the material, it is also used as a work piece such as a product used for power transistors. When using a relatively thick material, it is not appropriate to punch all at once in the first stage in terms of strength such as punches, and this method may not be applicable depending on the product.

[0006]

[Problems to be solved by the device]

 When the material to be processed is applied to the press machine by the method of creating the layout described above, it becomes a very troublesome work if there are many processing steps. As a problem of actual layout making, when the work material is thick and heavy, there is a problem that the work material goes back due to the weight of the work material, and thus it cannot be set by one person. For example, a pulling force of about 3 kg acts on the above-mentioned lead frame for transistors. For this reason, it is necessary to support the work material so that it does not shift.Because the normal press device has a double-hand switch for safety design, it requires two people to work or the work material shifts. I work by putting weights so that there is no such thing. As described above, the conventional layout making is very complicated work, and there is a problem that it is necessary to carry out the complicated work each time a press work is finished and a new product is applied. Therefore, the present invention has been made to solve the above problems, and its purpose is to facilitate the work of making a layout when a long strip such as a lead frame is applied to a press machine. The present invention is to provide a press device that can facilitate setup work in press processing.

[0007]

[Means for Solving the Problems]

 The present invention has the following configuration to achieve the above object. That is, in a press device that commercializes a long work piece by sequentially pressing and performing a predetermined number of steps of press work, at the start of working, insert the tip of the work piece into the device, A special backstop mechanism is attached to prevent the workpiece from returning to the supply side due to its own weight when a layout is created by manually feeding pitches and pressing each time. Further, the back stop mechanism is constituted by a clamp roller with a one-way clutch that clamps the work piece from above and below and feeds the pitch.

[0008]

[Action]

 By attaching a backstop mechanism that does not return the work piece back, the work piece is favorably supported when making a layout, and it becomes possible to make a layout by one person. When the clamp roller with a one-way clutch is used, the workpiece can be supported reliably and with good operability, which is suitable for creating a layout, and the device can be easily configured to reduce failures.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an explanatory view showing an embodiment of a pressing device according to the present invention. In the figure, the workpiece 10 is pressed from the left side to the right side of the figure. 11 is an upper die, 12 is a lower die, 13 is a press ram, and 14 is a press bolster plate. Reference numeral 15 is a feeding device for sequentially feeding the work material 10, and 16 is a back stop mechanism for preventing the work material 10 from returning. Reference numeral 17 is a guide support portion for introducing the workpiece 10 into the feeding device 15.

FIG. 2 shows the back stop mechanism 16 as viewed from the entry side of the workpiece 10. In the figure, 30a and 30b are clamp rollers that clamp the work piece 10 when creating a layout, 32 is an air cylinder that pushes the clamp roller 30a up and down, and 34 is a vertical movement that guides the vertical movement of the clamp roller 30a. Be a guide. A one-way clutch 36 is coaxially attached to the shaft of the lower clamp roller 30b. The one-way clutch 36 allows the clamp roller 30b to rotate only in one direction in which the workpiece 10 is fed forward.

In the steady working, the press machine of the embodiment pitch-feeds the work material 10 by the feeding device 15 and performs required working to commercialize the material. During steady pitch feeding, the clamp rollers 30a and 30b are opened, and the workpiece 10 is supported by the lower clamp roller 30b and conveyed freely. At the time of creating a layout in which the work material 10 is applied to the press device, the feed device 15 is stopped, and the work material 10 is supported by the back stop mechanism 16, and the work material 10 is fed one pitch at a time to create the layout. By operating the air cylinder 32 and clamping the workpiece 10 with the clamp rollers 30a and 30b, the workpiece 10 is supported by the action of the one-way clutch 36 without returning.

By supporting the work material 10 by the backstop mechanism 16 as described above, when the layout is made, the work material 10 is fed by a predetermined pitch and a press operation is performed step by step to sequentially perform layout. Can be made. In the apparatus of the embodiment, the work material 10 is securely supported by the clamp rollers 30a and 30b, and the backward movement is surely prevented. Therefore, even if the material is a thick band used in a transistor product, etc. The layout can be easily created. In this way, by providing the backstop mechanism 16, it is possible to make a layout by one person, and it is characterized by excellent operability and safety.

As described above, the press device of the embodiment facilitates layout creation at the start of processing by installing the backstop mechanism 16, but it can be easily installed on various types of press devices. It also has the advantage that it can be used. There are various types of feed mechanisms for workpieces in a press machine, such as those that use walking beams and those that use feed rollers. The above-mentioned backstop mechanism can be easily attached to these various types of press machines. It can be used and is useful. Further, there is no limitation on the installation position, and there is an advantage that it can be installed at an appropriate position. Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. There is no end.

[0014]

[Effect of the device]

 Advantageous Effects of Invention According to the press device of the present invention, as described above, it is possible to suitably prevent the work material from returning due to its own weight and being displaced when the work material having a long strip shape is applied to the press device. The layout can be easily created. As a result, it is possible to create a layout by one person, streamline the work when setting the work material on the press machine, and improve the work safety. It has a remarkable effect such that the handleability can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of an embodiment of a press device.

FIG. 2 is an explanatory diagram of a backstop mechanism attached to a press device.

[Explanation of symbols]

 10 Work Material 11 Upper Die 12 Lower Die 13 Press Ram 15 Feeder 16 Back Stop Mechanism 20 Pressing Equipment 30a, 30b Clamp Roller 32 Air Cylinder 34 Vertical Movement Guide

Claims (2)

[Scope of utility model registration request] 1. A press device for producing a product by sequentially feeding a long work material and subjecting the work material to press work in predetermined steps, and at the start of working, insert a tip end portion of the work material into the device to work the work material. When manually sending 1 pitch at a time and performing a press operation each time to create a layout,
A press device provided with a dedicated backstop mechanism for preventing the workpiece from returning to the supply side due to its own weight. 2. The press device according to claim 1, wherein the backstop mechanism is constituted by a clamp roller with a one-way clutch that clamps the work piece from above and below and feeds the pitch.