JPS6023078Y2 - feed bar joint - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feed barge joint in a transfer press.

In a transfer press, when loading and unloading a mold, when the feed bar is separated or combined from the drive part so that it can be taken out at the same time as the mold, conventionally the feed bar joint pin 1 is left as shown in Figure 1. The side feed bar 4 is installed upright, and in order to lift the feed bar with a bolster and pull out the bolster, the feed bar 3 on the take-out side must be raised high so that there is no interference e of the finger 2 with the pin 1. , the joint pin 1 had to be brought to a position where the finger 2 was not attached.

In order to eliminate this drawback, the present invention has developed a feed bar joint that can bring the joint pin to the position where the fingers are attached by attaching the joint pin to the take-out side, and also reduces the amount of feed bar rift 1. We aim to provide the following.

The present invention will be explained with reference to the drawings of one embodiment.

In Figures 3, 4, and 5, the pair of feed bars of the transfer press are connected to the remaining feed bars 6.6 provided at both left and right ends, and the remaining feed bars 6.6 are connected to the intermediate part of these bars by engaging them from above. It is composed of a feed bar 5 and a feed bar 5.

The remaining feed bars 6.6 are slidably guided in the longitudinal direction of the feed bars by feed bar receivers 13.14 provided on the left and right transfer units 19.20, respectively, and clamp and unclamp movements ( A pair of feed bars move toward and away from each other).

The remaining feed bar 6 on the right side is driven in the longitudinal direction of the transfer unit 21 and is slidably connected to the transfer unit 21 in a direction perpendicular thereto.

When carrying out the feed bar 5 from the press, align the connecting part with the remaining feed bar 6.6 with the fixed position of the feed bar receiver 13.14 as shown in Fig. 5 from the state shown by the solid line in Fig. 3. After that, it is unlatched, and then it is transported out as shown by the dashed line in Fig. 3.

In FIG. 2, a hydraulically operated cylinder 10 is installed in a feed bar receiver 13 that receives the remaining feed bar 6, and the piston rod lla of the cylinder 10 is opposed to the retainer 8 provided in the remaining feed bar 6 so as to be movable up and down. A recess 8 is provided on the inner circumferential surface of the retainer 8 and engages with a connecting ball 12.
Set up a.

Inside the retainer 8, a housing 9 holding the balls 12 is fixed to the remaining feed bar 6, and on the other hand,
A pin 15 is provided on the lower surface of the feed bar 5, and a recess 15b for engaging the ball 12 is provided on the outer peripheral surface 15a of the pin 15, which is erected in correspondence with the hole 9a of the housing 9.

A spring 7 is assembled between the retainer 8 and the housing 9 for pushing down the retainer 8 and locking the pin 15 and the retainer 8 via the balls 12, leaving the take-out feed bar 5 and connecting it to the feed bar 6. It is included.

A ring portion 16 that is fitted onto the upper conical portion 9b of the housing 9 so that the housing 9 is not lifted up by the spring 7 is formed on the upper portion of the remaining feed bar 6.

Next, the operation of the present invention will be explained.

The left half of FIG. 2 shows a state in which the take-out feed bar 5 and the remaining feed bar 6 are connected, and the right half shows a state in which the connection is released.

When fluid is sent from port G to cylinder chamber H through holes 13a and 10a, piston 11 rises, and retainer 8 is pushed up against spring 7 by piston rod lla, as shown on the right side of FIG. Then, the inner recess 8a of the retainer 8 moves to a position facing the ball 12, so that the ball 12 is released from the recess 15b of the pin 15, and the pin 15 and the housing 9 are engaged and disengaged.

Therefore, by lifting up the take-out feed bar 5, it can be easily taken out from the remaining feed bar 6.

Conversely, take out the pin 15 part of the feed bar 5 into the housing 9
After inserting the fluid into the holes 13b and 10 from port E,
When the ball 12 is fed into the cylinder chamber F through b, the piston 11 is pushed down and at the same time the retainer 8 is also lowered by the spring 7. As shown in the left half of FIG. The pin 15 and the housing 9 are engaged, and the take-out feed bar 5 and the leaving feed bar 6 are in a connected state.

According to the present invention having the structure and operation described above, by attaching the pin to the take-out feed bar, it is easy to take out the take-out feed bar and to engage and disengage it from the remaining feed bar by simply replacing and supplying fluid to ports E and G. It will be held in

Furthermore, since the joint pin can be brought to the finger attachment position, the feed bar on the take-out side can be shortened.

Furthermore, since the joint pin is fixed to the take-out feed bar, the amount of lift when taking out the take-out feed bar is also small.

[Brief explanation of drawings]

Fig. 1 is a diagram illustrating the relative relationship between the conventional feed bar joint pin and the fingers of the feed bar, and Fig. 2 is a sectional view illustrating the feed bar joint according to an embodiment of the present invention, and is a cross section taken along line AA in Fig. 5. Collected view, Figure 3 is a plan view of the transfer press in which the take-out feed bar and the leaving feed bar are connected at the feed bar joint, Figure 4 is a view taken from arrow B in Figure 3, and Figure 5 is the take-out feed. It shows how to leave the bar and engage it with the feed bar joint to connect it to the feed bar. 1 is a pin, 2 is a finger, 3 is a lower feed bar on the take-out side, 4 is a feed bar on the leaving side, 5 is a take-out feed bar, 6 is a leave feed bar, 7 is a spring, 8 is a retainer, 9 is a housing, 10 is a cylinder, 11 is a piston, 12 is a ball, 13 is a left feed bar holder, 14 is a right feed bar holder, 15 is a pin, 16 is a ring part, 17 is a left column, 18 is a right column, 19 is a left clamp unit ,
20 is the right clamp unit, 21 is the transfer unit.

Claims (1)

[Scope of utility model registration request] A pair of feed bars of a transfer press are each left with both ends left as a feed bar and the middle part as a take-out feed bar, and in a feed bar joint that removably connects these, both ends of the take-out feed bar are connected. A housing having a pin projecting downward, a hole into which the pin is fitted, and fixed internally to the feed bar, and a recess provided on the outer periphery of the pin in correspondence with a ball held in a horizontal hole of the housing. is provided in the housing so as to be movable up and down, and at its lower limit position, the ball is pushed into the recess of the pin to engage it, and at its upper limit position, the ball is released into the recess provided on the inner circumference of the pin to engage the pin and the pole. a cylinder device provided on a feed bar holder that guides the remaining feed bar and drives the retainer upward; and a spring provided between the retainer and the housing and biasing the retainer downward. A feed bar joint characterized by comprising: