KR200203560Y1 - Apparatus for providing material in a press - Google Patents

Abstract

The present invention provides a material supply apparatus for a press that can be operated in conjunction with a press without requiring a separate power, need not be installed separately, and do not need to control the interaction relationship.

The press material supply device includes a lift arm 7 provided with a work fixture 6 and a swing arm 5 engaged with the link 2a on the other side of the link 2 and coupled to the fixed shaft 4. In the apparatus for connecting and the other side of the lift arm 7 and the link (2a) link (2b) to supply the material to the press die, the loading cam mechanism (10) installed to reciprocate with the slider 41 and / Or an unloading cam mechanism 20, a cam follower 30 that cams along the loading cam mechanism 10 and / or the unloading cam mechanism 20, and the cam follower 30 One side of the link (2) is rotatably fixed, characterized in that the fixed shaft (4) is installed and fixed to the frame (40). It is preferable that the loading cam mechanism 10 and / or the unloading cam mechanism 20 be installed on the slider 41 so that the height can be adjusted according to the height of the mold or the height of the loading and unloading line.

Description

Material for a press {apparatus for providing material in a press}

The present invention relates to a material supply device for presses, and in particular, does not require a separate power, do not need to be installed separately, in order to control the interoperation relationship in the process of inserting the material out of the press mold using a link system It relates to a material supply device for a press that can be operated in conjunction with the press without the need.

In the conventional case, a press material supply device is formed by connecting a crankshaft and a swing arm and then engaging a lift arm with a pin on the other side of the swing arm, and recombining a link coupled to a fixed shaft with a lift arm, which swings as the crank descends. As the arm makes a big circle light around the fixed axis, the lift arm brings the material into and out of the press.In the case of two-link movement, the motor driving the crankshaft is overloaded, causing frequent breakdowns and large circular motions. There have been a number of problems that slow down the loading and unloading speed, resulting in reduced productivity during press operations.

In order to solve this problem, four linkages are formed around the crankshaft and the fixed shaft, and the swing arm is lowered vertically by the swing arm so that it can be transferred horizontally to the press die to improve work efficiency and robustness of the material feeder for the press. The material supplying device for presses, which consists of four links around the crankshaft and the fixed shaft, is transported horizontally to the press die by vertically lowering the lift arm by operating the swing arm, registered as Utility Model Registration No. 102109. have.

1 and 2, the conventional design combines the crank shaft 1 and the link 2 with the hinge shaft 3, and inserts the link 2a at the other end of the link 2. Then, the swing arm 5 coupled to the fixed shaft 4 is recombined with the link 2a, and the other end of the swing arm 5 is connected with the lift arm 7 to which the work fixture 6 is coupled, and then the link ( Combination of the other side of 2a and the link 2b connecting the lift arm 7 constitutes a press material supply device, the operation of which is as follows.

That is, the swing arm 5 is actuated by the motor (not shown) driving, the links 2, 2a, 2b are refracted, and the lift arm 7 is vertically lowered to hold the material with the workpiece fixture 6. (At this time, the workpiece fixture will hold or release the material by using an electromagnet or a vacuum device).

When the crank shaft 1 is rotated by the driving of another motor 8, the link 2 coupled to the hinge shaft 3 rotates from the top dead center A to the bottom dead center B and at the same time the fixed shaft ( The swing arm 5 inserted in 4) swings and the combined link 2a, 2b is deflected so that the lift arm 7 holding the material rises and lifts the arm 7 to the mold 9 of the press. This is moved and the work support 6 brings in a raw material. In the material supply device for presses which has been carried in the material, the link 2 located in the bottom dead center (b) returns to the top dead center A when the material is brought in by the rotation of the crank shaft 1 of the stroke, and thus, the first step expires. Will be. Reference numeral 10 is a material, and 11 is a support lever.

In the conventional press material supply device as described above, the lift arm (7) is vertically lowered by the bending of the swing arm (5) to hold the material with the workpiece fixture (6) to shorten the stroke distance and link (2) (2a) In order to bring the material into the mold by the deflection of (2b), the material is distributed by the rotation of the crankshaft (1) in the shortest time at the given feeding distance, and the force is distributed by the combination of each link so that the driving motor is not overloaded. Therefore, it is a very practical design to improve the work efficiency while extending the life of the material supply device.

However, the above-described conventional press material supply device not only has a complicated structure because it drives two material motors to operate the material supply device, but also has to be installed separately from the press, so as to provide the press material with the reciprocating motion of the slider of the press. There is a problem that its operation is not easy because it must be controlled in the relationship.

Therefore, the present invention is to solve the above problems, there is no need for a separate power, do not need to be installed separately, the structure that can be operated in conjunction with the press without the need to control the interaction relationship Its purpose is to provide a material feeder for presses.

1 is a schematic diagram showing a stroke of a conventional material supply apparatus;

2 is a side view of main parts of FIG. 1;

3 to 5 is a schematic view showing a loading cam mechanism of the material supply apparatus for a press according to an embodiment of the present invention,

6 to 11 is a schematic diagram showing an unloading cam mechanism of the material supply apparatus for a press according to another embodiment of the present invention.

<Explanation of symbols about main part of drawing>

1: crankshaft 2,2a, 2b: link

3: hinge shaft 4: fixed shaft

5: swing arm 6: workpiece fixture

7: lift arm 8: motor

9: mold 10: loading cam mechanism

11: upper vertical cam groove 12: inclined cam groove

13: lower vertical cam groove 20: unloading cam mechanism

21: Upper vertical cam groove 22: Upper inclined cam groove

23: Middle vertical cam groove 24: Lower slope cam groove

25: Lower vertical cam groove 26: Down vertical cam groove

27: Return Slope Cam Home 30: Camp Follower

40: Frame 41: Slider

A: Top dead center B: Bottom dead center

Press material supply apparatus according to an embodiment of the present invention for achieving the object, the link is coupled to the other side of the link, the swing arm coupled to the fixed shaft and the lift arm is installed with the workpiece fixture, and the lift arm and An apparatus in which a link is combined to supply a material to a press die on the other side of the link, the loading cam mechanism and / or the unloading cam mechanism installed to reciprocate with the slider, and along the loading cam mechanism and / or the unloading cam mechanism The cam follower has a cam movement, and one side of the link is rotatably fixed to the cam follower, and the fixed shaft is installed and fixed to the frame. It is preferable that the loading cam mechanism and / or the unloading cam mechanism be installed on the slider so that the height can be adjusted according to the height of the mold or the height of the loading and unloading line.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 to 5 are shown as a schematic view of the loading cam mechanism of the material supply apparatus for a press according to an embodiment of the present invention together with a conventional link mechanism.

In FIG. 3, the loading cam mechanism 10 includes an upper vertical cam groove 11, an inclined cam groove 12, and a lower vertical cam groove 13, and is installed to reciprocate with the slider 41. In addition, the cam follower 30 is rotatably fixed to one side of the conventional link (2), is configured to cam movement along the loading cam mechanism 10, the fixed shaft 4 is the frame 40 of the press Is installed on.

In addition, the loading cam mechanism 10 is preferably installed via a slotted hole shown in the slider 41 so that the height can be adjusted according to the height of the loading line.

FIG. 3 shows a state where the slider 41 is located at the top dead center. In the top dead center, the cam follower 30 is located on the lower vertical cam groove 13, so that the link 41 is located together with the links 2, 2a, and 2b. It can be rotated and lowered about the fixed shaft 4, and the lower workpiece | work fixture 6 lowers to the state which contacted by loading a raw material in a metal mold | die.

In this state, when the slider 41 descends and the cam follower 30 moves to the right along the inclined cam groove 12, as shown in FIG. 4, the links 2, 2a, 2b and the swing arm 5 are shown. With the rotation of), it is released from the press so that there is no interference with the descending mold.

Then, when the slider 41 is completely lowered and positioned at the bottom dead center position, the cam follower 30 is positioned in the upper vertical cam groove 11, as shown in FIG. 2b) and the workpiece fixture 6 together with the rotation of the swing arm 5 are placed in the position of the workpiece. At this time, the material is held by using an electromagnet or a vacuum device.

Then, when the slider 41 is raised, the material supply device for press of the present invention, the cam follower 30 is moved to the left along the inclined cam groove 12 again, accordingly the position shown in FIG. When fully ascended through, the cam follower 30 is moved to the lower vertical cam groove 13, as shown in Figure 3, to move the material into the mold. In this state, the material is loaded into the mold by releasing the electromagnet or vacuum device.

As such, the present invention uses the loading cam mechanism 10, the conventional links 2, 2a, 2b, and the swing arm 5 to operate in conjunction with the press without a motor, thereby requiring no separate control. .

On the other hand, the present invention, as shown in Figure 6 to 11, after the molding of the material by the press and mold, to provide a material supply apparatus for a press having an unloading cam mechanism 20 for unloading, The unloading device uses a conventional link 2, 2a, 2b and a swing arm 5 similarly to that shown in Fig. 3, and is configured by coupling to the unloading cam mechanism 20. That is, the unloading cam mechanism 20, the upper vertical cam groove 21, the upper inclined cam groove 22, the middle vertical cam groove 23, the lower inclined cam groove 24, the lower as shown in Figs. It consists of a vertical cam groove 25, the down vertical cam groove 26 and the return inclined cam groove 27, and is installed on the unloading side to reciprocate with the slider 41. Here, the cam follower 30 is also rotatably fixed to one side of the conventional link 2, and is configured to cam along the unloading cam mechanism 20, and the fixed shaft 4 is a frame of the press ( 40) is installed. Even in this case, it may be preferable that the unloading cam mechanism 20 be installed on the slider 41 so that the height can be adjusted according to the height of the unloading line.

6 shows a state where the slider 41 is located at the bottom dead center, and in the bottom dead center, the end of the work fixture 6 is processed because the cam follower 30 is located on the upper vertical cam groove 21. After unloading, it is positioned at a position approaching the press slightly, and the machining of the material by the mold is completed. In this state, when the slider 41 rises and the upper and lower molds start to open, the cam follower 30 moves to the right along the upper inclined cam groove 22, as shown in FIG. Rotation of the (2, 2a, 2b) and the swing arm 5 causes the work fixture 6 to move inside the press. At this time, when the cam follower 30 reaches the intermediate vertical cam groove 23, as shown in Figure 8, the workpiece fixture 6 is in a position to grip the processed material in the mold, swing arm ( 5) and the link (2, 2a, 2b) is lowered to come into contact with the processed material. In this state, after holding the material processed by an electromagnet or a vacuum device, the slider 41 is continuously raised, and the cam follower 30 moves to the left along the lower slope cam groove 24, and the swing arm ( 5) and the rotation of the links 2, 2a and 2b causes the work fixture 6 to exit the mold of the press as shown in FIG. 9, and at this point the loading cam mechanism 10 described above is It is preferable to be in the loaded state shown in Fig. 3 because it can avoid interference with each other.

Then, when the slider 41 continues to rise and reaches top dead center, the cam follower 30 moves to the position of the lower vertical cam groove 25, and as shown in FIG. 10 at this position, the slider 41 While) is at the top dead center, the material processed by the mold is in the unloaded position, and the work fixture 6 is located farthest from the press. In this state, the electromagnet or vacuum device is released to unload the processed material onto a conveyor or the like.

As shown in FIG. 11, the cam follower 30 follows the descending vertical cam groove 26 while the slider 41 is descending, and the cam follower 30 returns to the return slope cam groove 27 near the bottom dead center. After returning to the position of the upper vertical cam groove 21, the work fixture 6 is in a state of approaching the press slightly as shown in Figure 6, the above-described process is repeated.

According to another embodiment of the present invention by configuring the unloading device as described above, the unloading cam mechanism 20, the conventional links 2, 2a, 2b and the swing arm 5 are also used to unload the processed material. By using it is operated in conjunction with the press without a motor, thereby no separate control is required.

According to the configuration and action according to the embodiment of the material supply apparatus for a press of the present invention described above, the conventional link (2, 2a, 2b) and the swing arm (5) to the loading cam mechanism 10 and the unloading cam mechanism Applied to (20), there is no need for separate power, no need to be installed separately, and control the interaction between the supply and load the material into the mold of the press in conjunction with the press, or processed There is an effect that the material can be unloaded from the mold.

Claims (2)

The link 2a is coupled to the other side of the link 2, and the swing arm 5 coupled to the fixed shaft 4 is connected to the lift arm 7 provided with the work fixture 6, and the lift arm 7 and In the apparatus for supplying the material to the press die by combining the link (2b) on the other side of the link (2a), A cam that cam-moves along the loading cam mechanism 10 and / or the unloading cam mechanism 20 and the loading cam mechanism 10 and / or the unloading cam mechanism 20 installed to reciprocate with the slider 41. It has a follower (30), one side of the link (2) is rotatably fixed to the cam follower (30), characterized in that the fixed shaft (4) is installed and fixed to the frame 40 Material supply device for press. The material supply apparatus according to claim 1, wherein the loading cam mechanism (10) and / or the unloading cam mechanism (20) are installed on the slider (41) in a height adjustable manner.