JPH0331461Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a roller feeding device in a press machine that conveys a workpiece using rollers.

[Prior Art] A conventional example in which a workpiece is fed by a roller feeding device in a press device is shown in FIGS. 5 to 7.

Fig. 5 shows a first conventional example, in which 1 is an anvil that reciprocates in the direction of arrow A to forge a workpiece 2, and 3 is pivotally connected to a bearing 5 disposed on a frame 4. The frame 4 is fixed so that it cannot be moved up and down, and the rollers 3 are arranged at required intervals in the direction in which the workpiece 2 is fed. Thus, the workpiece 2 is forged by the anvil 1 and sequentially fed by the rollers 3.

FIG. 6 shows a second conventional example, in which the roller 3 has a bearing 5,
It can be raised and lowered via a frame 4 by a lifting device 6 such as a fluid pressure cylinder. In this case, when the workpiece 2 is forged by the anvil 1, the roller 3 can be lowered by the lifting device 6, so the roller width direction dimension of the workpiece 2 is the width of the bearing 5.
Can be molded to dimensions smaller than W ₁ .

FIG. 7 shows a third conventional example, in which the roller 3 has a small diameter, and the roller 3 and bearing 5 are located below the anvil 5. In this case, the workpiece 2 can be forged to any size in the roller width direction.

[Problems to be solved by the invention] However, in the first conventional example, since the top of the bearing 5 protrudes upward from the bottom surface of the anvil 1, the minimum forging dimension of the workpiece 2 is determined by the width W ₁ of the bearing 5. Due to restrictions, it is not possible to forge small or thin items, and the scale may fall onto the bearing 5, causing trouble such as damage to the bearing.

In addition, in the second conventional example, the roller 3 and the bearing 5 are lowered, so the restriction on the minimum forging size is relaxed, but the elevating device 6 is required, and the workpiece 2 is completely held between the anvil 1 and the anvil 1. The operation is complicated because the rollers 3 and the bearing 5 must be lowered before they collide with the side of the bearing 5. Moreover, it is impossible to forge a material that is too small compared to the width W ₁ of the bearing 5, and As in the case shown in Figure 5, the scale falls onto the bearing 5, causing trouble.

Furthermore, in the conventional third example, even a small item can be forged and the scale does not fall into the bearing 5, but since the lower part of the work 2 is located below the lower surface of the anvil 1, the lower part of the work 1 can be forged as shown in FIG. There is a portion 2a that cannot be forged, and therefore the unforged portion must be turned upside down for forging, making the operation complicated and reducing production efficiency.

The present invention was developed in view of the above-mentioned circumstances, with the aim of making it possible to forge even small workpieces and preventing the scale from falling into the bearing section.

[Means for Solving the Problems] The present invention provides a press device in which a workpiece is forged by an anvil that reciprocates in the horizontal direction, and the roller width is smaller than the roller width direction dimension of the workpiece after forging. It has a structure in which a workpiece feeding roller whose upper end is located above the lower surface of the anvil is supported by a bearing disposed below the anvil.

[Operation] The workpiece forged by the anvil that reciprocates in the horizontal direction is intermittently fed by the rollers, but since the roller width is smaller than the roller width dimension of the workpiece after forging, there is no need to retract the rollers during forging. Since the pressure surface of the anvil touches the entire workpiece in the vertical direction, there is no unforged part at the bottom of the anvil contact surface, and the bearing is located at the bottom of the anvil, so the scale will not fall onto the bearing. .

[Example] Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIG. 1 shows a first embodiment of the present invention, in which the width W of the roller 3 is smaller than the roller width dimension of the workpiece 2 after forging, the upper end of the roller 3 is located above the lower surface of the anvil 1, and the bearing 5 is It is placed below the anvil.
The shaft 7 of the roller 3 has a smaller diameter than the roller 3, and its upper end is located below the lower surface of the anvil 1.

During forging, the workpiece 2 is sequentially and intermittently sent by rollers 3 in a direction perpendicular to the paper plane of FIG. 1, and forging is performed by an anvil 1 that reciprocates from side to side. Even if the workpiece 2 is forged by reciprocating the anvil 1 from side to side, the roller width direction dimension of the workpiece 2 after forging is larger than the width W of the roller 3, so there is no risk of the anvil 1 hitting the side of the roller 3. , the forging can be performed smoothly, and since the upper surface of the roller 3 is located above the lower surface of the anvil 1, the entire upper side of the workpiece 2 is forged, and there is no unforged part left, so the workpiece 2 can be forged smoothly. There is no need to forge upside down, production efficiency is improved, and scale that falls during forging does not fall onto the bearing 5, so troubles such as damage to the bearing 5 do not occur.

FIG. 2 shows a second embodiment of the present invention, which is applicable to a wide workpiece 2. In this case as well, forging is carried out in the same manner as in the case of FIG.

3 and 4 show a third embodiment of the present invention, in which the anvil 1 is pressed so that the workpiece 2 can be reliably forged within the pressurized surface of the anvil 1 even when the height of the bearing 5 is relatively high. A collar 1a is provided on the pressure surface. Even with such a configuration, forging can be performed in the same manner as in the above embodiment.

The same parts in FIGS. 1 to 4 as in FIGS. 5 to 8 are given the same reference numerals.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effects of the invention] According to the roller feeding device of the press device of the present invention, the roller width is made smaller than the roller width direction dimension of the workpiece after forging, and the upper end of the roller is positioned above the lower surface of the anvil, so that the roller feeder during forging is Forging can be carried out reliably even without letting the forging to occur, and there is no unforged part at the bottom of the anvil contact area, so it is not necessary to forge upside down, and efficient forging is possible. Since the bearing is located below the anvil, the scale will not fall onto the bearing.
Various excellent effects can be achieved, such as extending the life of the bearing.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the first embodiment of the present invention, Fig. 2 is an explanatory diagram of the second embodiment of the invention, Fig. 3 is an explanatory diagram of the third embodiment of the invention, and Fig. 4 is an explanatory diagram of the third embodiment of the invention. 3 is a directional view of FIG. 5, FIG. 5 is an explanatory diagram of the first conventional example, FIG. 6 is an explanatory diagram of the second conventional example, FIG. 7 is an explanatory diagram of the third conventional example, and FIG. 7 is an explanatory diagram of the shape of the workpiece when forged with the one shown in FIG. 7. In the figure, 1 is an anvil, 2 is a workpiece, 3 is a roller, and 5 is a bearing.

Claims (1)

[Scope of utility model registration request] In a press device that forges a workpiece using an anvil that reciprocates in the horizontal direction, a workpiece feeding roller whose roller width is smaller than the widthwise dimension of the workpiece after forging and whose upper end is located above the lower surface of the anvil. 1. A roller feeding device for a press machine, characterized in that the roller feeding device is supported by a bearing disposed below an anvil.