JPS5816967Y2 - Transfer feeder drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a transfer feeder driving device that can drive a feeder in the lifting direction and the clamping direction using a single cam.

Conventionally, this type of transfer feeder has been provided with a lifting cam and a clamping cam, and these cams have driven the feeder in the lifting direction and the clamping direction.

Therefore, the structure is complicated and generally expensive, and maintenance and inspection are also difficult.

This invention was made for the purpose of eliminating such conventional drawbacks, and by providing a transfer feeder driving device that can drive the feeder in the lifting direction and the clamping direction with a single cam, the device itself can be simplified. This is an attempt to reduce costs.

This invention will be described in detail below with reference to an illustrated embodiment.

In the figure, reference numeral 1 denotes the main body of the transfer feeder, and a rail 2 is laid on a box 1a, and a pair of carriers 3 are movably mounted on the rail 2.

Each of the carriers 3 is fitted into the base end of a lift rod 4 so as to be slidable vertically, and a receiving portion 4a is provided protruding from the upper end of each lift rod 4. 4
A compression spring 5 is interposed between a and the carrier 30 to bias each lift rod 4 upward.

Guide rollers 6 are supported on both sides and the bottom of the receiver of the lift rod 4 inside the portion 4a, and both ends of the feed buff are supported on these guide rollers 6 so as to be movable in the feed direction.

The feed buffs are provided in the receiving portion 4a of each lift rod 4 so as to face each other perpendicularly to the longitudinal direction of the box 1a. direction, that is, in the clamping direction.

The drive mechanism 8 is provided with a pair of inner cam levers 9 housed in a box 1a, and the outer ends of these inner cam levers 9 are pivotally connected to the lower end of the lift rod 4 by a pin 11 via a spherical bearing 10. has been done.

The mutually opposing inner ends of each inner cam lever 9 are connected to the box 1a.
It is supported via a slider shaft 14 by a slider 13 that is movable in the horizontal direction while being guided by a guide 12 provided horizontally on the inner surface.

In addition, a through hole 9a is opened in the center of each inner cam lever 9,
The inner peripheral surface of the through hole 9a serves as an inner cam 9b, and a crankshaft 16 supported by the box 1a via a bearing 15 passes through the through hole 9a.

A cam follower 17 is rotatably supported at one end of the crankshaft 16 via a shaft rod 18 at an eccentric position. The shaft rod 18 and slider shaft 14 are adapted to be swung, and the shaft rod 18 and slider shaft 14 are connected to the link 3.
They are interconnected by 0.

A gear 19 is attached to the other end of each crankshaft 16, and these gears 19 are interlocked with each other by a pair of intermediate gears 21 supported on a fixed shaft 20. One of the gears 21 is meshed with one end of a rack 23 supported on the inner bottom of the box 1a via rollers 22.

The other end of the rack 23 extends to one end of the box 1a and is connected to one end of an L-shaped bar 24.

The other end of the L-shaped bar 24 is pivotally connected to one end of a connecting rod 26 that is biased upward via a compression spring 25, and the other end of the connecting rod 26 is pivotally connected to one end of a cam lever 27. ing.

The cam lever 27 has a substantially V-shape with a bent portion pivoted,
The other end is in sliding contact with a drive cam 29 via a cam follower 28.

When the L-shaped bar 24 is rotated in the direction of arrow a from the clamp position of each feeder T shown in FIG. Ru.

As a result, each inner cam lever 9 is moved downward from the outer end side around the slider shaft 14, and each feed buff is lowered, and
When the crankshaft 16 is further rotated, each inner cam lever 9
is held in a horizontal state and is pulled by the link 30 that connects the shaft rod 18 that supports the cam follower 17 and the slider shaft 14, and the slider 13 is moved in a direction in which the slider 13 is moved apart. The lift rod 4 connected to the feed buff 13 via the inner cam link 9 is also moved in the separating direction together with the carrier 3, whereby each feed buff becomes unclamped.

Then, the crankshaft 16 rotates about 186), and the inner cam lever 9 returns to the horizontal position, thereby completing unclamping.

Next, when the L-shaped bar 24 is rotated in the direction of arrow C to drive the feed bar 7 in the clamping direction, each crankshaft 16 is rotated by the rack 23 via the intermediate gear 21 in the direction of arrow d opposite to the above.
As a result, each feed buff is driven in the clamping direction in the opposite direction to the above to clamp a workpiece (not shown), and when the cam follower 17 of the crankshaft 16 reaches the position shown in FIG. , the raising of each feed pipe I to the upper limit position is completed.

As explained in detail above, this idea enables the feedper to be driven in the lifting direction, clamping direction, and clamping direction using a single cam. Since the number of mechanisms for driving can be reduced, the device itself can be simplified and costs can be reduced.

Furthermore, the simplification of the mechanism also has the effect of facilitating maintenance and inspection.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, with FIG. 1 being a partially cutaway plan view and FIG. 2 being a side view of the same. 1 is the transfer feeder body, 1a is the box, 3 is the carrier, 4 is the lift rod, 71d feeder 6, 9
is the inner cam lever, 9a is the inner cam, 16 is the crankshaft, 17
H cam follower.

Claims (1)

[Scope of utility model registration request] A pair of inner cam levers 9 are provided in the box 1a of the transfer feeder main body 1, and the inner end sides are supported by sliders 13 that are movable in the horizontal direction.The other end sides of these inner cam levers 9 are
The lower ends of lift rods 4 supported by the carrier 3 and movable in mutually approaching and separating directions are pivotally mounted, and both ends of each feed pad T are movably supported at the upper end of each lift rod. A cam follower 17 provided at an eccentric position of the crankshaft 16 is installed inside the inner cam 9b provided in each of the inner cam levers 9, and the cam follower 17 is rotated by interlocking and rotating each of the crankshafts 16 by an appropriate drive source.
A transfer feeder driving device which swings each inner cam lever 9 to drive each feed buff in the lifting direction and the clamping direction.