JPH0745076B2 - Pressing mechanism for processed materials - Google Patents

Description

TECHNICAL FIELD The present invention relates to a pressing mechanism for pressing and fixing a processed material manufactured by a press onto a receiving die.

[Prior Art] Conventionally, as a pressing mechanism of this type, as shown in FIG. 7, for example, a pressing member 3'for pressing an aluminum profile 1'to a die 2'and a pressing member 3'to a die 2 '. It is known that it comprises a holder 5'provided with a spring 4'for pressure contact, and a cam 7'provided on a press upper plate 6'for pressing and releasing the pressing member'3 against the die 2 '. ing.

As shown in FIGS. 8 and 9, this pressing mechanism has a cam groove 3 formed in a cam 7'and a pressing member 3 'into which the cam 7'is inserted as the press upper plate 6'is lowered. The compressed spring 4'projects forward by the cam mechanism composed of'a '. Along with this, the pressing member 3'connected to the spring 4'presses the aluminum profile 1'on the die 2 '.

[Problems to be Solved by the Invention] However, the conventional pressing mechanism utilizes the vertical movement of the press upper plate 6'for pressing and releasing the aluminum profile 1'of the pressing member 3'by the above-mentioned cam mechanism. Is required. As a result, the mechanism is made larger and the weight is increased, and the processing cost is accordingly increased.

Further, when the pressing member 3'becomes long, one end of the pressing member 3'becomes far from the point of action of the force of the spring 4'and only one end supports one point, so that the aluminum profile 1'cannot be stably held. .

The present invention was created in view of the above-mentioned circumstances, and an object thereof is to provide a pressing mechanism for a work material that does not require power for pressing and releasing the work material and that can stably hold the work material. To provide.

[Means for Solving the Problems]

According to this invention, the pressing mechanism of the processed material has a pair of links formed in a state where the connecting portion at one end is supported by the support member and opened left and right, and a roller supported by the other end of each link. And a tension spring stretched between the links, and a spring having one end fixed to one of the links and the other end fixed.

By the action of both links, both rollers, and both springs, the work material can be pressed and released without power, and the work material can be held stably at two points of both rollers. To do so.

〔Example〕

 The present invention will be described below with reference to illustrated embodiments.

A pressing mechanism 9 for a processed material 8 such as an aluminum shape member includes a pair of links 10 and 11 each having a connecting portion at one end pivotally supported, and each of the links 10 and 11.
Both rollers 12, 13 pivotally supported on the other end of 11, and each link 10,
It is composed of a spring 14 stretched between 11 and a spring 15 having one end fixed to one of the links 10 and 11 and the other end fixed. (See FIG. 1) Here, reference numeral 16 is a receiving type, and 17 is a spring holder.

The links 10 and 11 are formed in a state where one ends thereof are supported by a support member 18 and open to the left and right, and a tension spring 14 is stretched between the links 10 and 11.

In addition, as shown in FIG. 2, when the roller 13 contacts the receiving die 16, the link 12 has a stopper that restricts the rotation of the link 11 so that the roller 12 secures a gap H between the roller 12 and the receiving die 16.
19 built-in. (See FIG. 3) This gap H
Is adjusted so that the plate thickness of the processed material 8 inserted into the receiving die 16 is slightly smaller than the indicated size.

Further, a spring 15 whose one end is fixed by a spring holder 17 is attached to the link 11, and a force for pressing the link 11 toward the receiving die 16 acts.

When the workpiece 8 is pressed and fixed by the pressing mechanism 9 having such a configuration, the workpiece 8 extruded in FIG. 2 is loosely inserted into the receiving die 16. At that time, since the gap H is secured between the roller 12 and the receiving die 16, the processed material is not so resistant to insertion.

Next, as shown in FIG. 4, the processed material 8 passes through the roller 12, and the roller 13 that was in contact with the receiving die 16 is pushed and expanded to be inserted. At that time, the roller 13 presses the processed material 8 against the receiving die 16 by the action of the spring 15.

At this time, since the roller 13 is separated from the receiving mold 16 by the processed material 8, the position of the link 11 that pivotally supports the roller 13 also separates from the receiving mold 16.

In addition, the spring 14 is pulled along with it, and the link
The roller 12 pivotally supported on the sliding contact with the processed material 8 allows the processed material 8 to be received by the die 1 at two points of the rollers 12 and 13.
Press and fix to 6.

In addition, if there is an error in the plate thickness of the processed material 8, the roller
Although the movement of 13 increases, the springs 14 and 15 absorb the increased amount of the change and guide the roller 12, so that the workpiece 8 can be reliably fixed.

FIG. 5 shows a supporting member 18 in which the links 10 and 11 are pivotally supported.
Is a slide arm fixed to the spring holder 17.

In this way, the allowable range L when the width of the plate of the processed material 8 is large can be made large.

FIG. 6 shows a structure in which the supporting member 18 shown in FIG.

By doing so, even if there is a protrusion such as a rail in the center of the processed material 8, the processed material 8 can be reliably held.

〔The invention's effect〕

The processed material pressing mechanism of the present invention has a connecting portion at one end pivotally supported by the support member 18, and a pair of links formed in an open state to the left and right, and a roller pivotally supported at the other end of each link, It is characterized by comprising a tension spring stretched between the respective links, and a spring in which one end is pressed against one of the links and the other end is fixed to a spring holder.

According to this configuration, by using only the lower die of the work material processing die, both rollers evenly absorb the work material error from the pair of both links, the roller, and the tension spring, and press and fix. Therefore, it is not necessary to use a cam mechanism that uses the vertical power of the press upper plate of the mold.

Further, by reducing the number of springs and using a pair of links, there are advantages such as simplification and downsizing of the mechanism, reduction of die weight, and reduction of processing cost.

Further, in the case of using the above-mentioned conventional cam mechanism, extra power for moving the cam must be applied to the press upper plate before the conventional machining work, but this is not necessary in the mechanism of the present invention. The power can be reduced and the machine can be downsized.

Further, in the mechanism of the present invention, since the work material is firmly pressed and fixed by the two rollers that are pressed by one spring, the aluminum is more stable than the conventional one where the pressing position is pressed by the spring. The shape can be fixed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a work material pressing mechanism of the present invention, FIGS. 2 and 4 are schematic plan views showing a work material pressing process, and FIG. 3 is an enlarged view of part A of FIG. 5 and 6 are schematic perspective views showing another embodiment of the work material pressing mechanism of the present invention, FIG. 7 is a perspective view showing a conventional work material pressing mechanism, and FIGS. 8 and 9 are conventional work materials. It is a schematic plan view which shows a pressing process. 1 '... processed material, 2' ... receiving type, 3 '... pressing member, 3'
a ... Cam groove, 4 '... Spring, 5' ... Holder, 6 '
… Press upper plate, 7 ′… Cam, 8… Working material, 9… Pressing mechanism, 10,11… Link, 12,13… Roller, 14,15… Spring, 16… Receiving type, 17… Spring holder, 18… Support member, 19 ... Stopper.

Claims (1)

[Claims] 1. A mechanism for pressing and fixing a work material 8 to a receiving die 16, a pair of links 10 and 11 formed in a state where the connecting portion at one end is axially supported by a supporting member 18 and opened left and right, and Rollers 12, 13 axially supported on the other end of each link 10, 11, and
A tension spring stretched between the links 10 and 11
A mechanism for pressing a processed material, comprising a link 14 and a spring 15 having one end pressed against one of the links 10 and 11 and the other end fixed to a spring holder 17.