JPH0738273Y2 - Positioning mechanism of carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a carrier device, and more particularly, to a positioning mechanism for a carrier device that temporarily stops an object to be conveyed at a predetermined position.

b. Conventional Technique FIGS. 5 and 6 show a conventional conveying apparatus 1.

This transfer device 1 includes a chain 4 with rollers for transferring a pallet 3 for storing or accommodating products 2a, 2b, 2c, 2d, 2e, and a projecting piece protruding below the pallet 3.
It comprises a positioning mechanism 6 for positioning the pallet 3 by pressing 5a, 5b, 5c, 5d, 5e.

The protrusions 5a, 5b, 5c, 5d, 5e of the pallet 3 are the products 2a, 2 respectively.
It is provided corresponding to b, 2c, 2d, 2e.

Here, the positioning mechanism 6 is composed of a positioning stopper 8 which is vertically moved by a cylinder 7, and a pushing claw 10 which is reciprocally moved by the cylinder 9 in the conveying direction of the pallet 3.

The positioning mechanism 6 operates as follows.

That is, when the pallet 3 is sent to the vicinity of the positioning mechanism 6 according to the chain 4, the positioning stopper 8
Is moved up from the lower position shown by the dotted line to the upper position shown by the solid line. Accordingly, the pawl 5 of the pallet 3 is stopped by the feeding operation of the chain 4, with the pawl 5a thereof being received by the positioning stopper 8. Thereafter, the pushing claw 10 moves the claw 5a from the rear side toward the positioning stopper 8 side, whereby the product 2a corresponding to the claw 5a of the pallet 3 is moved to the sixth position.
It is positioned at a predetermined position indicated by the line AA in the figure. When thus positioned, the product 2a is taken out from the pallet 3 or the product 2a is stored in the pallet 3, and then the positioning stopper 8 is returned to the lower position and the pushing claw 10
Is returned to the position indicated by the dotted line that does not hinder the passage of the next claw 5b. Hereinafter, this operation is sequentially repeated for the claws 5b, 5c, 5d, 5e of the pallet 3.

c. Problems to be Solved by the Invention By the way, in the positioning mechanism of the conventional transfer device, the operation of positioning the chain 4 to the predetermined position corresponding to each of the pawls 5a, 5b, 5c, 5d, 5e of the pallet 3 and the positioning stopper. It is necessary to move the 8 up and down at a predetermined timing and the operation to move the push claw 10 at a predetermined timing. Further, since these operations are performed independently, the sequence for controlling the timing of these operations is It was very complicated.

Moreover, in order to perform these operations, a lot of control equipment was required, so a lot of time was spent in designing and constructing them, and also in adjusting them even after construction. Was there.

Therefore, the conventional positioning mechanism of the carrying device is expensive and uneconomical.

Therefore, in order to eliminate the above-mentioned drawbacks,
A positioning stopper provided on the side of the transferred object for receiving the projecting piece and a push claw for pressing the projecting piece to the side of the positioning stopper to position the transferred object are provided, and the positioning stopper is swingable to a positioning point. And a forward moving means for moving the push claw forward in the transport direction of the object to be transported, and a forward moving means for moving the push claw forward. Further, as the push claw is moved in the transport direction, A drive cam formed to move the positioning stopper up and down is provided so as to move integrally with the pushing claw, and by moving the pushing claw in the transport direction, the positioning stopper is moved by the driving cam. Positioning structure of the transporting device, which is raised to a height sufficient to receive the protrusion, and the protrusion is received by the raised positioning stopper. It has been proposed.

However, in the above-mentioned conventional positioning mechanism, while the positioning stopper is located at the lower portion of the drive cam, the transport device remains in operation, and the transported object is not positioned but is passed through as it is. was there.

The present invention has been made in view of the above circumstances, and it is possible to prevent the objects to be conveyed from passing through even while the positioning stopper is located in the lower portion of the drive cam, and is simple and low cost. It is an object of the present invention to provide a positioning mechanism for a transfer device that can be realized by.

d. Means for Solving the Problems In the present invention, in order to achieve the above-mentioned object, a positioning stopper for receiving a projecting piece provided on the transported object side, and the projecting piece being pushed toward the positioning stopper side are provided. A push claw for positioning the conveyed object, the positioning stopper is swingably arranged at a positioning point, the push claw is arranged so as to move forward in the conveying direction of the conveyed object, and the push claw is A forward moving means for moving forward is further provided, and further, a drive cam formed in a shape that moves the positioning stopper up and down as the push claw is moved in the transport direction is provided so as to move integrally with the push claw. By moving the push claw in the transport direction, the drive cam causes the positioning stopper to rise to a height sufficient to receive the protruding piece and the raised position. In the positioning structure of the conveyance device in which the stopper receives the protrusion, the positioning stopper is formed in a substantially T shape, and a stopper portion is provided at the upper end portion thereof, and the lower end portion thereof rolls on the drive cam. A movable first roller is rotatably provided, and a central base end portion thereof is rotatably provided with a second roller for restricting the movement of the conveyed object. Therefore, the first roller is provided at a lower portion of the drive cam. While being positioned, the second roller of the positioning stopper abuts on the projecting piece to prevent the transported object from advancing.

e. Embodiment Hereinafter, one embodiment of the positioning mechanism of the carrying device according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show an embodiment of a positioning mechanism of a carrying device according to the present invention.

The positioning mechanism 11 of the carrying device of the present embodiment is provided on the carrying device (not shown) and is mounted on the base 13 having a substantially U-shaped cross section and extending in the carrying direction B of the pallet 12 carried by the carrying device. A rail 14 is arranged in the carrying direction B, a positioning stopper 15 is arranged near the center of the base 13, and a slide base 16 slidably moved in the carrying direction B along the rail 14 is provided. An air cylinder (moving the slide base 16 in the carrying direction B) is provided by arranging a push claw 17 at the rear portion of the slide base, arranging a positioning stopper drive cam 18 at the front portion of the slide base. Forwarding means) 19 is provided.

Hereinafter, each part will be described in detail.

The rail 14 has grooves 14a, 14 extending in the longitudinal direction on both sides thereof.
have a.

On the other hand, members 20, 20 having an inverted U-shaped cross section are fixed to the lower surface of the slide base 16 at appropriate intervals. These members 20 have protrusions 20a, 20a formed on opposite sides of the inside thereof so as to face each other.

These protrusions 20a, 20a are fitted in the grooves 14a, 14a of the rail 14, respectively, whereby the movement of the slide base 16 in the vertical and horizontal directions with respect to the rail 14 is restricted and in the transport direction B. Only movable.

The positioning stopper 15 is substantially T-shaped, and has a stopper portion 15a at its upper end and a first roller 23 at its lower end.
Is rotatably installed, and a pallet is
A second roller 40 for restricting the movement of 12 is rotatably provided.

The positioning stopper 15 has support legs 21 and 21 at a substantially central portion thereof.
Is rotatably supported by a pin 22 on the stopper portion 15a.
By the spring 26 that is bridged between the bolt 24 attached to and the bolt 25 attached to the one side wall 13a of the base 13,
The first roller 23 is urged counterclockwise so that the first roller 23 always contacts the drive cam 18.

The support legs 21 and 21 are provided upright on a plate 28 that is bridged between the pair of leg members 27 and 27.
It is fixed to the base 13 via 7,27.

The tip of the rod 19a of the air cylinder 19 is fixed to the rear end of the slide base 16.

The drive cam 18 has a lower portion 18a formed to have a substantially stepped shape,
It is composed of an inclined portion 18b and a high portion 18c.

The drive cam 18 is held by a pair of adjusting screws 29 and 30 provided on the slide base 16, and its position is adjusted and fixed to the slide base.

The push claw 17 has a substantially L-shape, and is rotatably supported by a pair of support legs 31 and 31 provided upright at the rear end of the slide base 16 via a pin 32 at the rear portion thereof.

Bolt 33 attached to the rear end of push claw 17 and one support leg
A spring 35 is provided between the bolt 34 and the bolt 34 attached to the 31, and the pressing claw 17 is always urged clockwise by the spring.

A pin 36 is provided below the rear end portion of the push claw 17 between the support legs 31 and 31.
The clockwise rotation of the push claw 17 by the 35 is restricted where the head portion 17a of the push claw is positioned at an appropriate height.

Next, the operation of this embodiment will be described.

Below the pallet 12 in which the products 36a, 36b, 36c, 36d are stored or are stored, these products 36a, 36b, 36c, 36d are placed.
Projecting pieces 12a, 12b, 12c, 12d corresponding to the.

Now, when the pallet 12 is sent by a carrying device (not shown) and approaches the positioning mechanism 11, the air cylinder 19 is actuated and the slide base 16 is moved to the position indicated by the alternate long and short dash line (hereinafter, the position indicated by the alternate long and short dash line is referred to as the first position). From the position) to the position indicated by the solid line (hereinafter, the position indicated by the solid line is referred to as the second position).

In the first position, since the first roller 23 of the positioning stopper 15 is on the lower portion 18a of the drive cam 18,
As shown by the alternate long and short dash line, the stopper portion 15a is placed in the lower position, while the pushing claw 17 is
The rotation of the head 17a is regulated by 36, and the head 17a is positioned higher.

Slide base 16 from 1st position to 2nd position
As the first stopper 23 moves to the high portion 18c through the inclined portion 18b of the drive cam 18, the positioning stopper 15 is rotated clockwise, whereby the stopper portion 15a is raised. Is moved upwards.

At the same time, the push claw 17 is moved to the pallet 12 by its head 17a.
The lower protrusion 12a (or 12b, 12c, 12d) is abutted from its rear side and pushed forward to push the pallet 12 forward.

The pallet 12 pushed forward in this way is stopped when the projecting piece 12a (or 12b, 12c, 12d) is received from the front by the stopper portion 15a, whereby C- in FIG. Product 36a of pallet 12 (or 36
Positioning corresponding to b, 36c, 36d) is completed.

In this state, the product 36a (or 36b, 36c, 36
The d) is taken out from the pallet 12 or stored in the pallet 12.

After that, operate the air cylinder 19 to slide the slide base.
When the 16 is returned to the first position, the stopper portion 15a of the positioning stopper 15 returns to the lower position as described above, and the pallet 12 is disengaged from the protrusion 12a (or 12b, 12c, 12d). Freedom to advance 12 and push 17
Is the protrusion 12b (or 12b) that is located immediately behind the protrusion 12a (or 12b, 12c, 12d) of the pallet 12 and is rearward.
(c, 12d) against the spring 35 while temporarily lowering the head 17a, and is positioned behind the projecting piece 12b (or 12c, 12d).

From this state, if the slide base 16 is moved to the second position, the same operation as described above is repeated. Along with this, the pallet 12 at the position where the CC line is positioned.
Can be sequentially stopped and positioned at the positions corresponding to the products 36b, 36c, 36d.

When the positioning of all the products in the pallet 12 and the removal or storage thereof are completed, the pallet is sent to the next process in the B direction by the transport device (not shown).

In this way, the pallets 12 sent one after another by the carrying device are automatically positioned one after another.

In the present embodiment, when the slide base 16 is in the so-called first position and the first roller 23 at the lower end of the positioning stopper 15 is on the lower portion 18a of the drive cam 18, as shown by the chain line. The second roller 40 at the central base end of the pallet 12 is located in the space between the projecting pieces 12a, 12b, 12c, 12d of the pallet 12 (see FIG. 4).

Thus, while the second roller 40 is located in the space between the protrusions 12a, 12b, 12c, 12d, the second roller 40 is disposed below the protrusion 12a (or 12b, 12c) of the pallet 12. , 12d) and the progress of the pallet 12 is blocked.

As a result, when the first roller 23 of the positioning stopper 15 is on the lower portion 18a of the drive cam 18, the pallet 12 does not pass through as it is.

Furthermore, the air cylinder 19 operates again and the slide base
When the 16 is moved to the second position, the first roller 23 of the positioning stopper 15 moves to the high portion 18c of the drive cam 18, so that the first roller 23 is rotated clockwise.

At this time, the positioning stopper 15 causes the second roller 40 and the protrusion 12a of the pallet 12 to rotate by the rotation of the second roller 40.
(Alternatively, the locked state with 12b, 12c, 12d) can be released smoothly.

Since the positioning mechanism 11 of this embodiment has a simple structure, it can be realized easily and at low cost.

f. Effect of the Invention As described above, according to the positioning mechanism of the carrying device of the present invention, the positioning stopper is formed in a substantially T shape, and the stopper portion is provided at the upper end portion and the lower end portion thereof is provided. A first roller that rolls on the drive cam is rotatably provided, and a second roller that regulates the movement of the transported object is rotatably provided at a central base end portion of the first roller. Since the second roller of the positioning stopper abuts on the projecting piece while being positioned at the lower portion of the drive cam to prevent the transported object from advancing, the roller at the lower end of the positioning stopper is prevented. Is on the lower part of the drive cam, the roller at the central base end thereof is brought into contact with the projecting piece of the transported object, whereby
It is possible to reliably prevent the non-conveyed object from passing through as it is.

Further, in this state, the positioning stopper can smoothly release the locked state between the second roller and the projecting piece of the pallet by the rotation of the second roller.

Moreover, the positioning mechanism of the present invention has a simple structure,
It can be realized easily and at low cost.

[Brief description of drawings]

1 to 4 show an embodiment of a positioning mechanism of a carrying device according to the present invention, and FIG. 1 is a partial sectional front view, FIG.
FIG. 4 is a plan view thereof, FIG. 3 is a left side view thereof, FIG. 4 is a conceptual view showing a state in which pallets are prevented from passing through by a positioning stopper thereof, and FIGS. 5 and 6 are conventional conveying devices. Fig. 5 shows the positioning mechanism of Fig.
FIG. 6 is a conceptual diagram showing an enlarged main part thereof. 11 …… Positioning mechanism, 12 …… Pallet, 13 …… Base,
14 …… rail, 15 …… positioning stopper, 15a …… stopper part, 16 …… slide base, 17 …… push claw, 17a…
… Head, 18 …… Stopper drive cam, 18a …… Lower part, 18b
...... Inclined part, 18c ...... High part, 19 ...... Air cylinder, 23 ...
… First roller, 40 …… Second roller.

Claims (1)

[Scope of utility model registration request] 1. A positioning stopper for receiving a protrusion provided on the transported object side, and a push claw for pressing the protrusion toward the positioning stopper to position the transported object.
The positioning stopper is swingably disposed at a positioning point, the push claw is forwardly movable in the transport direction of the object to be transported, and forward moving means for moving the push claw is provided. A drive cam formed in a shape that moves the positioning stopper up and down as the push claw is moved in the transport direction is provided to move integrally with the push claw, and thus, by moving the push claw in the transport direction, In the positioning structure of the transporting device, wherein the drive cam raises the positioning stopper to a height sufficient to receive the protruding piece, and the raised positioning stopper receives the protruding piece, the positioning stopper is substantially T-shaped. It is formed in a letter shape, and a stopper portion is provided at the upper end portion thereof, and a first roller that rolls on the drive cam is provided at the lower end portion thereof for rotation. A rotatably provided second roller for restricting the movement of the transported object is provided at the central base end portion thereof, and thus, while the first roller is located at the lower portion of the drive cam, A positioning mechanism for a carrying device, wherein a second roller of a positioning stopper abuts on the projecting piece to prevent the object to be carried from proceeding.