JP2002302229A - Progressive sending device and first-in first-out device using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a progressive sending device of simple structure, which can improve a maintenance property. SOLUTION: This progressive sending device is provided with a shuttle bar 2 which extends in the direction to convey articles to be conveyed, a reciprocating means to reciprocate the shuttle bar in the longitudinal direction, a lever support rod, which is erected 1 or separated from the shuttle bar 2 a specified distance 2 or more, and a pressing lever 7 which is attached pivotally to the end section of the lever support rod through a horizontal pin 6 intersecting orthogonally to the moving direction of the shuttle bar 2 and whose center of gravity is located on the side of the base section of the lever 7, and in which the base section is provided so as to be able to abut on the shuttle bar 2 in a rear section in the reciprocating direction of the shuttle bar 2 and whose end section can be detached from the article to be conveyed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a progressive device for linearly and horizontally transporting conveyed articles, such as boxed articles and carts, in various industries such as logistics, warehouse, and picking. It relates to a front-loading device.

[0002]

2. Description of the Related Art Conventionally, an intermittent transport device described in Japanese Patent Application Laid-Open No. 57-121517 has been known as this type of progressive transport device. This intermittent transport device is provided with a large number of feed claws at predetermined intervals on a feed rail which is disposed so as to be able to advance to a linear feed path having a plurality of stations and is reciprocated by a feed cylinder, and is provided along the feed path The object to be conveyed is provided with a ratchet which engages with one of the feed claws during the forward movement of the cylinder and transmits the forward movement of the cylinder to the object to be conveyed. In addition to providing detection means for detecting the presence of objects,
Each of the stations except the foremost station operates in response to the detecting operation of the detecting means when the conveyed article is present at the station and the station ahead of the station, and the station exists at the station. Retreating means for retreating the ratchet of the conveyed object from the moving path of the feed claw is further provided,
With such a configuration, the intermittent transport device can be simply configured and can be implemented at low cost.

[0003]

However, in the conventional progressive feeding device, a ratchet to be engaged with the feed claw of the feed rail must be provided on the conveyed object, and the means for detecting the presence of the conveyed object and the ratchet Means for retreating the sheet from the moving path of the feed claw and an electric control means for controlling the same need to be provided, resulting in a disadvantage that the configuration becomes complicated, resulting in high cost and complicated maintenance.

It is therefore an object of the present invention to provide a progressive feeding device which has a simple configuration, improves maintainability, and can reduce the cost, and a leading device using the same.

[0005]

In order to solve the above-mentioned problems, a first progressive feeding device according to the present invention includes a shuttle bar extending in a transport direction of an article to be transported and a shuttle bar reciprocating in a longitudinal direction. Reciprocating means, one or two or more lever support bars erected on the shuttle bar, and a horizontal pin orthogonal to the shuttle bar movement direction at the end of the lever support rod, and the center of gravity is Near the base,
The base is provided so as to be able to abut on the shuttle bar in the forward direction of the shuttle bar with respect to the base of the lever support rod, and has a pushing lever whose end is detachable from the conveyed object. The second progressive feeding device includes a shuttle bar extending in the transport direction of the article to be transported, reciprocating means for reciprocating the shuttle bar in the longitudinal direction thereof, and a horizontal pin orthogonal to the travel direction of the shuttle bar. And a link that is rotatable rearward in the forward and backward directions of the shuttle bar while being pivotally mounted on the base portion, and an elastic member that constantly biases the link forward and backward in the reciprocating direction of the shuttle bar. A pin is attached to the end of the link by a pin parallel to the pin of the base, the center of gravity is near the base, and the base is provided so as to be able to abut on the shuttle bar in the forward and backward directions of the shuttle bar from the base of the link. Further, the end is provided with a pushing lever which can be disengaged from the transferred object.
The third progressive device is the second device, wherein the rear side of the shuttle bar in the forward movement direction at the base of the link is provided in an arc shape, and the base of the push lever is provided in an arc shape, It is preferable that the base is bent so as to extend in the direction of the conveyed object with the base abutting on the shuttle bar.

[0006] The preloading device includes a guide means for guiding the object to be conveyed in the conveying direction, a second or third progressive device disposed along the conveying path of the object to be conveyed, and A stopper is provided in front of the transported object in the transport direction of the transported device and prevents transport of the transported object.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a front view and a right side view, respectively, showing a part of an embodiment of a progressive feeding device according to the present invention, with parts omitted. The progressive feeding device 1 includes a shuttle bar 2 that extends horizontally in a transport direction (to the right in FIG. 1) of a transported object (not shown). The shuttle bar 2 is linearly reciprocated in the longitudinal direction thereof through a reciprocating means (not shown) such as a fluid pressure cylinder with a stroke equal to the length of the transported object in the transport direction. It consists of an open channel steel. The shuttle bar 2 has one or two or more pairs of pairs of bases of links 3 at intervals equivalent to the strokes axially mounted by horizontal pins 4 orthogonal to the direction of movement of the shuttle bar 2. The pair of links 3 abut the bottom surface of the shuttle bar 2 so that the link 3 can rotate backward from the state of standing vertically to the shuttle bar 2 in the forward movement direction (right direction in FIG. 1) of the shuttle bar 2. The rear side of the shuttle bar 2 in the forward movement direction at the base is provided in an arc shape.

A pair of links 3 is formed of an elastic member 5 such as a tension coil spring or the like, which is stretched between the vicinity of each end and the forward portion of the shuttle bar 2 from the pin 4 in the forward movement direction.
, The shuttle bar 2 is constantly biased forward in the forward movement direction of the shuttle bar 2. On the other hand, a substantially intermediate portion of the pushing lever 7 is axially attached to an end between the pair of links 3 by a pin 6 parallel to the pin 4 at the base. The pushing lever 7 has a base (left end in FIG. 1) provided in an arc shape, a center of gravity provided near the base, and a pair of links 3 perpendicular to the shuttle bar 2. The base portion is provided so as to be able to abut on the bottom surface of the shuttle bar 2 in the forward movement direction of the shuttle bar 2 (left side in FIG. 1) from the base portion of the link 3 in a state of standing up. The base is in contact with the bottom surface of the shuttle bar 2 and is bent upward so as to extend upward so that the right end (in FIG. 1, the right end) can be disengaged from the conveyed object. The bar 2 has an upper surface that is inclined so that the rear side in the forward movement direction is lower.

In order to sequentially transport an object to be transported by the above-described sequential transport apparatus 1, first, the shuttle bar 2 is reciprocated by the reciprocating means.
, The end of the pushing lever 7 engages with the object to be conveyed, and pushes the object to be conveyed. Next, when the shuttle bar 2 is moved back, the end of the pushing lever 7 comes into contact with the object to be conveyed, and the pushing lever 7 rotates so that the base is lifted, and the end of the pushing lever 7 and the object to be conveyed are moved. The shuttle bar 2 returns to the original position in a state where the engagement is released. Then, the transported object is sequentially fed by repeating the forward and backward movements of the shuttle bar 2.

According to the progressive feeding device 1 having the above-described structure, a progressive feeding device is mainly composed of the shuttle bar 2 and the accumulating mechanism including the pair of the link 3, the elastic member 5, and the pushing lever 7 attached thereto. Therefore, the configuration is extremely simple as compared with the conventional one, and the maintainability can be greatly improved, and the cost can be significantly reduced.

In the above-described sequential feeding device 1, the case where the accumulating mechanism including the pair of the link 3, the elastic member 5, and the pushing lever 7 is attached to the shuttle bar 2 has been described, but the invention is not limited to this. Rather, a shuttle bar extending in the transport direction of the article to be transported, reciprocating means for reciprocating the shuttle bar in the longitudinal direction, and one or two or more lever support bars erected on the shuttle bar. The shuttle bar is axially attached to the end of the lever support rod by a horizontal pin orthogonal to the direction of movement of the shuttle bar, the center of gravity is near the base, and the base is rearward of the base of the lever support rod in the forward direction of the shuttle bar. And a pusher lever having an end portion capable of engaging and disengaging with the object to be transferred, and a ratchet comprising a lever support rod and a pusher lever. The door mechanism, in place of the accumulator mechanism, may be attached to the shuttle bar.

FIGS. 3, 4, 5 and 6 show a partially omitted front view, a left side view, and a front view of a main part of an embodiment of a preloading device according to the present invention, respectively. It is a left view of a part. In the figure, reference numeral 11 denotes a rack for horizontally accommodating a plurality of carts 12 as objects to be conveyed.
The two side frames 11a and 11b are arranged to face each other in parallel at a required interval, and the lower ends of both side frames 11a and 11b are appropriately connected via a plurality of connecting members 11c. On the connecting member 11c of the rack 11, two rails 13 for running and guiding the carriage 12 are horizontally laid, and a plurality of support members 15 having rollers 14 mounted on the upper end thereof, and the above-described progressive feeding device. One shuttle bar 2 is supported so as to be able to reciprocate in the longitudinal direction. The shuttle bar 2 is provided with a plurality of accumulation mechanisms including a pair of links 3, an elastic member 5, and a pushing lever 7 as described above.
2 are mounted at intervals equal to the length in the transport direction.

A shuttle bar 2 is provided at the rear of the rack 11 from the front end of the carriage 12 in the transport direction.
Pneumatic cylinder 16 as a reciprocating means for linearly reciprocating with a stroke equal to the length in the transport direction of 2,
The piston rod is appropriately connected to and mounted on the shuttle bar 2. The reciprocating means is not limited to the pneumatic cylinder 16, but may be a hydraulic cylinder, or a rotating slider crank mechanism. or,
At the front end in the transport direction of the carriage 12 in the rack 11,
The trolley 12 is brought into contact with the front end of the trolley 12 by the progressive device 1.
Is provided.

In order to feed the cart 12 forward and pack it into the rack 11 by the above-mentioned filling device, the pneumatic cylinder 1
6 is operated to reciprocate the shuttle bar 2. On this occasion,
When there is no carriage 12 whose conveyance is prevented by the stopper 17, as shown in FIGS. 7A to 7E, the end of the pushing lever 7 is moved along with the forward movement of the shuttle bar 2 due to the extension operation of the pneumatic cylinder 16. The abutment portion abuts on the abutment portion 12a at the lower front end of each bogie 12 to push the respective bogies 12 forward, and at the stroke end of the extension operation of the pneumatic cylinder 16, the front end portion of the leading bogie 12 abuts against the stopper 17. As a result, conveyance of each carriage 12 is prevented. Then, as the shuttle bar 2 moves backward by the contraction operation of the pneumatic cylinder 16, the end of the pushing lever 7 comes into contact with the contact portion 12a of the subsequent bogie 12, and the pushing lever 7 is rotated so that the base can be lifted. It moves and passes through the contact portion 12a of the following carriage 12.

When there is a carriage 12 whose conveyance is prevented by the stopper 17, as shown in FIGS. 8 (a) to 8 (d), the shuttle bar 2 moves forward due to the extension operation of the pneumatic cylinder 16. When the end of the pushing lever 7 comes into contact with the contact portion 12a of each carriage 12 and pushes the carriages 12, and the leading carriage 12 abuts on the carriage 12 which is prevented from being conveyed by the stopper 17, the shuttle As the link 3 rotates backward in the forward movement direction of the bar 2, the pushing lever 7 descends, the end of the pushing lever 7 gets over the contact portion 12 a, the link 3 rises by the urging force of the elastic member 5, and the pushing lever The base of 7 comes into contact with the bottom surface of the shuttle bar 2 by its own weight. Then, the end of the pushing lever 7 is stopped by the stopper 17 and the abutting portion 12a of the carriage is stopped.
After the shuttle bar 2 moves back due to the contraction operation of the pneumatic cylinder 16, the end of the pressing lever 7 comes into contact with the contacting portion 12a of the following carriage 12, and the pushing lever 7 raises the base. So that it passes through the abutment portion of the following bogie 12.

FIGS. 9 and 10 are a front view and a left side view, respectively, showing a part of a further embodiment of the preloading device according to the present invention, with parts omitted. In this preloading device, the above-described device has a rack 11 for horizontally storing a plurality of trolleys 12 as objects to be conveyed, whereas it stores a plurality of box-shaped cases 18 as objects to be conveyed horizontally. It has a rack 11 '. That is, both side frames 1 of the rack 11 '
Guide rails 19a and 19b made of angle iron are provided at the required heights so as to support the box-shaped case 18 horizontally and movably via the flanges of the case 1a and 11b.

On the shuttle bar 2 of the progressive feeding device 1, a plurality of accumulation mechanisms including a pair of links 3, an elastic member 5, and a pushing lever 7 are attached at intervals equal to the length of the case 18 in the transport direction. And pneumatic cylinder 1
The stroke 6 is also mounted at an interval equal to the length of the case 18 in the transport direction. The other configuration and operation and effect are almost the same as those of the above-described embodiment, and the description thereof will be omitted.

It should be noted that the above-mentioned double tipping devices 11, 11 'are used.
Has described the case where the progressive device 1 is disposed below the transport path of the carriage 12 and the case 18 which are the transported objects. However, the present invention is not limited to this. May be arranged on the side of the device. Further, the link 3 of the progressive feeding device 1 is not limited to the case where the link 3 is provided so as to be rotatable backward from the state perpendicular to the shuttle bar 2 in the forward movement direction of the shuttle bar 2. The shuttle bar 2 may be provided so as to be rotatable rearward in the forward movement direction from a state inclined forward and backward in the forward movement direction. Further, in the case of the first-loading device, the stroke of the reciprocating means may be equal to or greater than the length of the transported object in the transport direction. The interval may be equal to or less than the length in the transport direction.

[0019]

As described above, according to the first progressive feeding device of the present invention, the progressive feeding device is constituted mainly by the ratchet mechanism comprising the lever supporting rod and the pushing lever attached to the shuttle bar. According to the second and third progressive feeding devices and the first-loading device using the same, the progressive device is constituted mainly by the accumulating mechanism including the link attached to the shuttle bar, the elastic member, and the pushing lever. The configuration is extremely simple as compared with the conventional one, and the maintainability can be greatly improved, and the cost can be significantly reduced. Further, the number and arrangement of the ratchet mechanism or the accumulation mechanism, the length of the slide bar, and the number of the reciprocating means can be easily increased or decreased, and the degree of freedom with respect to the installation location and the transported object is large.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view showing an example of an embodiment of a progressive feeding device according to the present invention.

FIG. 2 is a right side view of the progressive feeding device of FIG. 1;

FIG. 3 is an omitted front view showing an example of the embodiment of the preloading device according to the present invention.

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a front view of a main part of the preloading device of FIG. 3;

FIG. 6 is a left side view of FIG. 5;

FIGS. 7 (a) to 7 (e) are operation explanatory diagrams in the case where there is no carriage whose conveyance is prevented by the stopper of the first-loading device of FIG. 3;

8 (a) to 8 (d) are operation explanatory diagrams in the case where there is a bogie whose conveyance is prevented by the stopper of the first-loading device of FIG. 3;

FIG. 9 is a partially omitted front view showing another example of the embodiment of the leading edge device according to the present invention.

FIG. 10 is a left side view of FIG. 9;

[Explanation of symbols]

 Reference Signs List 1 progressive device 2 shuttle bar 3 link 4 pin 5 elastic member 6 pin 7 pushing lever 11 rack 11 'rack 12 trolley (conveyed object) 13 rail (guide member) 16 pneumatic cylinder (reciprocating means) 17 stopper 18 case (Conveyed object) 19a Guide rail (guide means) 19b Guide rail (guide means)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3F036 DA02 DD07

Claims (4)

[Claims] 1. A shuttle bar extending in the transport direction of an object to be transported, reciprocating means for reciprocating the shuttle bar in a longitudinal direction, and one or two or more levers standing on the shuttle bar at a required interval. The rod and the end of the lever support rod are axially attached by a horizontal pin orthogonal to the direction of movement of the shuttle bar, the center of gravity is near the base, and the base is behind the base of the lever support rod in the forward and backward directions of the shuttle bar. A progressive feeding device which is provided so as to be able to abut on a shuttle bar and has a pushing lever whose end is capable of engaging and disengaging with an object to be conveyed. 2. A shuttle bar extending in the transport direction of an article to be transported, reciprocating means for reciprocating the shuttle bar in a longitudinal direction, and a base formed by a horizontal pin perpendicular to the direction of travel of the shuttle bar. One or two or more links at a required interval rotatable backward in the forward movement direction of the shuttle bar, an elastic member for biasing the link forward in the forward movement direction of the shuttle bar, and an end of the link. The part is axially mounted by a pin parallel to the base pin, the center of gravity is near the base, and the base is provided so as to be able to contact the shuttle bar in the forward and backward directions of the shuttle bar from the base of the link,
And a pushing lever having an end portion capable of engaging and disengaging with the transferred object. 3. The base of the link is provided with an arc on the rear side in the forward movement direction of the shuttle bar, while the base of the pushing lever is provided with an arc and the base abuts on the shuttle bar. 3. The progressive feeding device according to claim 2, wherein the end portion is bent and provided so as to extend in the direction of the transported object in the state. 4. A progressive feeding device according to claim 2 or 3, wherein the guide means guides the transported object in the transport direction, and is arranged along a transport route of the transported object. A front-loading device, comprising: a stopper disposed forward in a conveying direction of a conveyed object and configured to prevent conveyance of the conveyed object.