JPS6127859Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pallet turning device in a transfer line.The purpose of the invention is to remove obstacles to turnover by using the upward movement of the rotating plate to guide the guide plates on both sides of the pallet at the turning area of the pallet. The purpose of this is to avoid the position where it does not occur.

In a transfer machine, when a pallet carried into a turnover station is turned over 90 degrees, the guide plates that guide both sides of the pallet become an obstacle to the turnover.
It is necessary to release it to a position where it will not become an obstacle at the time of turnover. Conventionally, therefore, a special actuator is required to move the guide plate outward when the pallet is pivoted.

The present invention provides a turning device that solves the above-mentioned conventional problems, and embodiments thereof will be described below with reference to the drawings.

Reference numeral 1 denotes a fixed frame, and 2 a guide rail for supporting and guiding a pallet 13 with a workpiece attached thereto in the transport direction, which is separated at a turnover station for turnover of the pallet 13. 3
4 is the transfer bar, and 4 is the pallet 13 between the guide rails 3 at the turnover station.
This is a support rail that supports the

In the turnover station of the present invention, a rotating plate 5 is provided with a pair of knock pins 12 that engage with the engaging holes 14 of the pallet 13 so as to be able to move upwardly and pivotably. That is, a rotating tube 7 is rotatably and rotatably supported on a support base 6 fixedly provided on a fixed frame 1, and a rotating plate 5 is fixed to the upper end of the rotating tube 7. A pinion 9 is formed on the outer peripheral surface of the rotating cylinder 7, and a rack piston 8 for turning 90 degrees is meshed with this pinion 9. On the other hand, a lift cylinder 10 is fixedly installed at the lower end of the support base 6, and an elevating shaft 11 coupled to a piston rod of the lift cylinder 10 passes vertically through the axis of the rotating cylinder 7 so as to be relatively rotatable.

In addition, a guide plate 15 that guides both sides of the pallet 13 along the guide rail 2 at the turnover station is attached to a support bracket 18 fixed on the fixed frame 1 by a support shaft 17, which is perpendicular to the direction of the guide rail 2. The link bracket 16 is fixed to the upper end of a link bracket 16 which is pivotably supported in an outward direction. Furthermore, link bracket 1
The lower end of 6 is engaged with an actuating plate 19 fixed to the lower surface of the rotating plate 5 via an engagement bolt 20.
The end edge of the actuating plate 19 that engages with the engaging bolt 20 has an arc shape centered on the rotating cylinder 7, and always maintains an engagement relationship with the engaging bolt 20 while the rotating plate 5 rotates 90 degrees. It has a length.

Next, the operation of the above configuration will be explained. The original position of the rotating plate 5 is the lowered end shown in FIGS. 1 and 2. In the lowered position of the turning plate 5, the guide plate 15 is aligned with the guide rail 2, and the pallet 13 supported and guided by the guide rail 2 by the transfer bar 3 is guided and carried into the turnover station.

The pallet 13 carried into the turnover station is supported on the support rail 4 directly above the turning plate 5. Thereafter, the lift cylinder 10 is activated to raise the rotating plate 5. As the rotating plate 5 rises, the knock pin 12 engages with the engagement hole 14 on the lower surface of the pallet 13, and the actuating plate 19 also rises together, so the link bracket 16 is moved outward via the engagement bolt 20. The guide plate 15 moves pallet 1 as shown by the imaginary line in FIG.
Evade to a position farther away from both sides of 3. In this state, by operating the rack piston 8 and rotating the rotating plate 5 by 90 degrees, the pallet 13 is attached to the knock pin 1.
2 causes a 90 degree change in direction.

At the 90 degree turning position, the turning plate 5 is lowered, the dowel pin 12 is removed from the engagement hole 14 of the pallet 13, the guide plate 15 is returned to the position where it guides both sides of the pallet 13, and then the turning plate 5 is returned to its original position. It then reverses itself to its original position and prepares for the next turnover.

As described above, the present invention utilizes the upward motion of the rotating plate to move the guide plate that guides both sides of the pallet to a position where it will not become an obstacle during pallet turnover. Since the device operates in the same manner as in the past, it does not require a special drive device as in the prior art, and has the advantage of being able to operate quickly and reliably.

[Brief explanation of the drawing]

Figure 1 is a plan view of the present invention, Figure 2 is Figure 1-
A line sectional view, FIG. 3 is a line sectional view taken from FIG. 1. 1...Fixed frame, 2...Guide rail, 4
...Support rail, 5...Swivel plate, 7...Swivel tube,
10... Lift cylinder, 12... Knock pin, 13... Pallet, 15... Guide plate, 16... Link bracket, 17... Support shaft,
18... Support bracket, 19... Actuation plate, 20
...Engagement bolt.

Claims (1)

[Scope of utility model registration request] A rotating plate equipped with a knock pin that engages with the pallet is provided so as to be able to rise and rotate, and a guide plate that guides both sides of the pallet is pivoted by a ring bracket so that it can swing in an outward direction perpendicular to the conveying direction of the pallet. and a turning device in which one end of a ring bracket is engaged with an actuating plate fixed to the turning plate.