JPH04179620A - Laterally-moving device for conveyance - Google Patents

Abstract

PURPOSE:To miniaturize the device and prevent damage of conveyed substances, by providing conveyed-substance placing support bars between right and left chains with the bars being arranged in parallel, slidably providing conveyed pushing mobile bodies in a projected state, causing a bottom surface of each pushing mobile body to be projected downwards, and causing this projection to be engaged with a guide in a range of lateral movement. CONSTITUTION:When a conveyor 22 is driven, a large number of support bars 20, 21 are moved in the arrow-indicated direction at an upper-side turn/travel position together with chains 15 to 17. While pushing-mobile-bodies 25, 26 are moved in the direction of arrow in response to said bar-movement, since a horizontal roller 30 projected downwardly from each pushing mobile body 25, 26 is engaged with the insides of guide rails 40, 41, the pushing mobile bodies 25, 26 are not only moved in the direction of arrow but also moved toward the inside of the conveyor 22 as viewed in the widthwise direction thereof. As a result, they are obliquely moved and collected at the center. In this way, lateral movement can be made without giving impact.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a conveyor lateral movement device that conveys a conveyed object forward and moves the conveyed object laterally during conveyance. be.

(Prior art) As a specific example of a lateral transport device that transports the transported object forward and moves the transported object laterally during transportation, the transported objects carried in from multiple carry-in conveyors are transferred to one carry-out conveyor. Unloading merging device, distribution system that selectively branches items carried in from one carry-in conveyor to multiple carry-out conveyors, or selectively branches carried goods carried in from multiple carry-in conveyors to multiple carry-out conveyors. In addition, there is a sorting device that selectively unloads carried objects to a plurality of sorting positions provided on the side of a conveying path.

The simplest type of conveyor lateral movement device that performs such merging, distribution, or sorting is one in which a guide rail is provided on the conveyor to engage the side of the conveyed object and move the conveyed object diagonally. However, in the case of this guide rail method, there is a problem that the transported object collides with the guide rail, causing the transported object to be damaged or deformed due to the impact. There is also a possibility that flexible conveyed objects such as conveyors may get caught between the conveyor surface (rollers or belts) and the guide rails and be damaged.

In addition, a distribution device (distribution device I) which selectively branches transported objects carried in from one carry-in conveyor to a plurality of carry-out conveyors in this type of conveyor lateral movement device was developed in the Japanese Patent Publication Publication No. 49-49.
This is shown in Publication No. 02.

The distribution device shown in this publication has a large number of connecting rods installed in parallel between a pair of endless chains on both sides that rotate synchronously, and a large number of conveyors are connected to the connecting rods over the length of the connecting rods. This is a device that is movable in the horizontal direction, and objects are carried in from one carry-in conveyor and placed on this conveyor, and during the conveyance,
By selectively moving the conveyor table laterally along the connecting rod, the conveyed articles are branched to three conveyors and conveyed out.

Although this transport platform method does not have the problems of the guide rail method described above, it requires a transport platform that is larger than the width of the object to be transported, so in order to ensure the lateral movement stroke of the transport platform, , the length of the connecting rod becomes longer, the width of the machine becomes wider, and the device becomes larger than necessary.

(Problems to be Solved by the Invention) As mentioned above, in the case of the conventional lateral transport device using the guide rail method, there is a problem that the transported object is damaged or deformed due to collision or jamming. In the case of the conveyance table method, since the conveyance table, which is larger than the width of the conveyed object, is moved laterally, the apparatus becomes larger than necessary.

The present invention has been made in view of these points, and an object of the present invention is to prevent damage and deformation of conveyed objects without unnecessarily increasing the size of the apparatus.

[Structure of the invention]

(Means for Solving the Problems) Claim 1 of the present invention relates to a transport lateral movement device that transports a transported object W forward and moves the transported object W laterally, and synchronously moves the transported object W to the side. A plurality of endless chains for accompanying driving 15. A conveyor 22 with a large number of parallel supporting rods 20, 21 for placing conveyed objects between +6°17
and a pushing part 29 which is provided on a large number of support rods 20.21 of this conveyor 22 so as to be movable in the length direction of the support rods 20.21 and projects above the support rods 20.21 in the upper rotation position; A large number of pushing bodies 25, 26 for pushing conveyed objects having engaging portions 30 protruding from the lower part of the support rods 20° 21 are provided for the engagements 1130 of these pushing bodies 25° 26. The pushing body 25. engages with the side portion of the portion 3G.
26 to the opposite side.
4+, 42. 43.44. 45.51°52.

According to a second aspect of the present invention, in the conveyor lateral movement device of the first aspect, a wedge surface 35 is formed on the upper surface of the pushing part 29 of the pushing body 25, 26, and the wedge surface 35 is inclined downward toward the front end. A projecting edge 36 is formed at the front end of the pushing part 29 to be disposed between the support rods 20 and 21.

(Function) The conveyor lateral movement device according to claims 1 and 2 of the present invention conveys the conveyed object W by placing it on the support rod 20.21 of the conveyor 22, and during conveyance, the pushing body 25. The guide rails 40.4+ and 51.52 are engaged with the engaging portions 30 of 26, and the pushing body 25.26 is moved laterally along the support rod 20.21. By the pushing part 29 of
It pushes the conveyed object W on the support rods 20, 21 laterally.

In particular, in claim 2, when the conveyed object W cannot move due to some reason, the pushing body 2 approaching from behind
The pushing part 29 of 5.26 has its protrusion 36 and wedge surface 3
5, and enters under the conveyed object W.

(Example) An example of the conveyor lateral movement device of the present invention will be described with reference to the drawings.

FIG. 1 shows a merging device ff15 as a conveyance lateral movement device for conveying articles W carried in from three carry-in conveyors 1, 2.3 to one carry-out conveyor 4.

In this merging device 5, 8 is a frame, and the front end of the frame 8 on the carry-out conveyor 4 side (the right end in Figure 1) and the rear end on the carry-in conveyor 1.2.3 side (the left end in Figure 1) are connected to each other. Shirts) 9,1G are hung horizontally and parallel to each other,
The shaft 9 at the front end is driven by a motor (not shown)! It is designed to rotate in a predetermined direction via I.

Three sprockets 14 are fixed to each of the shafts 9.10 at predetermined intervals, and endless driving chains 15, 16, 17 are connected between the three pairs of sprockets 14 facing each other in the front and back. These three chains 15. are hung horizontally and parallel to each other. 16.17
are the three sprockets 1 attached to the shaft 9
4 in the same direction at the same speed, that is, in the upper rotation position (transport section), the front (right side in Figure 1), and the lower rotation position (right side in Figure 1).
In the return section), it rotates backward (to the left in Figure 1).

In addition, each of the above chains +5. 16 and 17 are supported horizontally between the front and rear sprockets 14 by a chain rail (not shown).

And between each chain 15, 16, 17, there is a second
As shown in the figure, a support rod 20.2 consisting of a large number of circular pipes for carrying objects is attached to each chain 15°16, 1
7 and parallel to each other, thereby
A conveyor 22 is constructed, in which a number of support rods 20.2] function like conveyor belts, the number of support rods 20.21 of this conveyor 22 running together with the chain 15.1.6.17 and its upper rotation. In the row position (conveying section), the conveyed object W is supported on the support rods 20, 21 and conveyed from the rear side (left side in FIG. 1) to the front side (right side in FIG. 1).

In addition, the chain 15. Multiple support rods between 15 and 20
A large number of pushing bodies 25 are supported movably in the longitudinal direction of the support rods 20, one for each of the two support rods 20, and a large number of push bodies 25 are supported between the chains +6°17. A large number of pushing bodies 26 are attached to the rod 21, and two support rods 21
The support rods 21 are supported movably in the length direction of the support rods 21, one at a time.

As shown in FIGS. 3 to 5, each pushing body 25, 26 is attached to the upper part of a sliding part 28 made of synthetic resin, which has recesses 27 for the support rods 20, 21 formed in the front and rear parts. A flat plate-shaped pushing part 29 made of rubber is integrally attached, and a horizontal roller 3 as an engaging part is attached to the lower part of the sliding part 28.
0 is rotatably supported, and a vertical pin 3 is provided protruding from the bottom of the horizontal roller 30.

Each of the pushing bodies 25.26 engages the support rods 20.21 in the recesses 27 at the front and rear of the sliding portion 28, and the sliding portion 28 is held between the two support rods 20.21 from the front and back. As a result, it is supported by the support rod 20 and can slide in the length direction of the support rod 20, and in this state, it is in the upper rotation position I.
In f' (conveying section), the pushing section 29 is connected to the support rod 20;
21, and a horizontal roller 30 and a vertical pin 31 protrude from the bottom of the support rod 20.21.

Furthermore, contact surfaces 34 are formed at the rear portions of both left and right side surfaces of the pushing portion 29 of each of the pushing bodies 25 and 26, and are inclined inwardly toward the rear end of the pushing portion 29. Moving object 25.2
A wedge surface 35 that slopes downward toward the front end of the pusher 29 is formed at the front of the upper surface of the pusher 29, and the front end of the pusher 29 is provided with a support rod 20°21. A protrusion 36 is formed between the two.

A contact plate 37 made of synthetic resin is attached to the contact surface 34 of each of the pushing bodies 25, 26.

Further, as shown in FIG. 6, the chains 15, 16
．． 17 and support rods 20, 21, etc.
Immediately below the upper rotating position (conveying part) of the support rod 20.21 of No. 2, the conveyor 22 starts from the rear end toward the front against the side of the horizontal roller 30 of the pushing body 25.26. A pair of first guide rails 40, 41 on both sides are provided in a range slightly in front of the front end of the conveyor 22. A pair of second guide rails 42 and 43 on both sides of the conveyor 22 which are parallel to each other after being slightly spaced forward from the inside of the front end of the conveyor 22
The support rod 20.2 of the conveyor 22 is provided in a range up to the front end of the support rod 20.2], and directly above the lower rotating position (returning part) of the conveyor 22, against the side of the horizontal roller 30 of the pushing body 25.26. A pair of third guide rails 44, 45 are provided in the range from the front end of the conveyor 22 to the rear end of the conveyor 22, and the third guide rails 44, 45 are parallel to each other after gradually increasing the distance from the front end of the conveyor 22 toward the rear. the first guide rail 40 of
．． an auxiliary rail located on the extension line of 41 and facing the outer side of the pair of second guide rails 42 and 43;
6.47 is provided.

Next, when the conveyor 22 described above is driven to explain the operation of this merging device 5, a large number of support rods 20, 21 are connected to the chain +5. 16. Accompanied by 17, upper rotation position (
During transport g), the support rods 20, 21 move forward (to the right in Figure 1), and at the lower rotating position (return section), the support rods 2
0.21 moves backward (to the left in Figure 1).

In the upper rotating section (conveying section), the support rod 20
．． Horizontal roller 3 of pushing body 25 and 26 moving together with 21
After the outer part of 0 moves straight a little, it engages with the inner part of the first guide rail 40.4+, and due to this engagement, the pushing body 25.26 moves forward while pushing the first guide rail 40. .41 inward, that is, in the direction of the central chain 16, and then the horizontal rollers 30 of the pushing bodies 25 and 26
the inner part of the second rail 42.43 engages the outer part of the second rail 42.43;
Due to this engagement, the pushing body 25.26 moves forward and moves slightly outward along the second guide rail 42.43, that is, in the direction of the chains 15.17 on both sides.
Go straight.

In addition, during the final straight movement in this upper rotation position (conveyance section), the horizontal rollers 30 of the pushing body 25.26 are positioned between the second guide rail 42.43 and the auxiliary rail 46.47.

In addition, in the lower rotating part (returning part), the support rod 20.
Pushing body moving with 21)'5.26 horizontal roller 3
After the inner part of 0 moves straight a little, it engages with the outer part of the third guide rail 44.45, and due to this engagement, the pushing body 25.26 moves backward while moving the third guide rail 44. .45 along the outer or both sides of the chain 15.
Move in the +7 direction, then go straight.

Then, in this state, when the conveyed object W is conveyed from the carry-in conveyor 1 to the left side of the conveyor 22 in the traveling direction, the conveyed object W
is supported by the support rod 2o and transported forward, and during transport, the transported object W is pushed to the right in the traveling direction by the pushing part 29 of the pushing body 25 and moved to the center of the conveyor 22 in the traveling direction. , supported by support rods 20, 21, and delivered to the delivery conveyor 4.

Then, when the conveyed object W is conveyed from the carry-in conveyor 2 to the central part of the conveyor 22 in the traveling direction, the conveyed object W is moved to the support rod 20.
21 and transported forward, the transported object W continues straight and is transported to the transport conveyor 4.

Further, when the conveyed article W is carried from the carry-in conveyor 3 to the right side of the conveyor 22 in the traveling direction, the conveyed article W is supported by the support rod 2I and conveyed forward, and the conveyed article W is moved by the pushing body 26 during conveyance. It is pushed to the left side in the direction of travel by the pushing part 29 and moves to the center of the conveyor 22 in the direction of travel, and the support rod 20
．． 21 and transported to the transport conveyor 4.

Therefore, according to this merging device 5, the objects W carried in from the three carry-in conveyors 1, 2.3 can be carried out to one carry-out conveyor 4.

Then, the conveyed object W is pushed laterally by the pushing part 29 of the pushing body 25.26, but during this pushing, the pushing body 25.26 moves together with the delivered object W, and the pushing part 29 moves. Since the inclined contact surface 34 contacts the side of the conveyed object W, the conveyed object W is not subjected to impact, and therefore the conveyed object W is not damaged or deformed.

In addition, the pushing bodies 25 and 26 support the support rod 20 on which the conveyed object W is placed.
．． 21, there is no gap between the pushing body 25.26 and the support rod 20.21, and therefore the conveyed object W is not caught between the pushing body 25.26 and the support rod 20.21. It doesn't get too crowded.

Furthermore, a wedge surface 35 is formed at the front of the upper surface of the pushing part 29 of the pushing body 25 , 26 and is inclined downward toward the front end of the pushing part 29 . is formed with a ridge 36 disposed between the support rods 20.21, so that if the conveyed object W becomes unable to move for some reason, the pushing body 25.26 that approaches from behind will not move. Since the pushing portion 29 enters under the conveyed object W via its ridge 36 and wedge surface 35, no unreasonable force is applied to the conveyor 22, and the possibility that the conveyed object W is damaged is reduced.

Further, since the pushing bodies 25 and 26 are not used to place the conveyed object W, but only push the sides of the conveyed object W, there is no need to make them very large (therefore, the support rods 20.
The maximum movement stroke for the conveyor 21 can be secured, and the width of the conveyor 22 can be kept wide.

Furthermore, at the top of the support rod 20.21 of the conveyor 22,
Since the pushing portions 29 of the pushing bodies 25, 26 only protrude and there is no need to increase the height of the pushing portions 29, the upper part of the conveyor 22 can be made into a free space without any obstacles.

Note that this embodiment is an example of a merging device 5 that carries out conveyance items W carried in from a plurality of carry-in conveyors 1°2.3 to one carry-out conveyor 4, but is not limited to this. A distributing device that selectively branches conveyance items carried in from a plurality of carry-in conveyors to a plurality of carry-out conveyors, and a distribution device that selectively branches carried goods carried in from a plurality of carry-in conveyors to a plurality of carry-out conveyors; A sorting device in which items are selectively delivered to a plurality of sorting positions provided on the side of a conveyance path can also be applied to an apparatus.

In other words, when applying dispensing equipment and sorting equipment to equipment,
This can be handled by branching the guide rail and providing a changeover switch at the branching point, like railway rails.

Examples of switching points of this distribution device and sorting device are shown in FIGS. 7 and 8.

Reference numerals 51 and 52 indicate guide rails branched to the left and right, and a changeover switch 53 is provided in front of the guide rails 51 and 52.

This changeover switch 53 is connected to the branched guide rail 51.
52 is the guide rail 40° 41, 4 of the above-mentioned embodiment.
Similar to 2.43.44.45, it engages with the horizontal roller 30 of the pushing body 25.26, whereas it engages with the vertical pin 31.

The changeover switch 53 is formed to be rotatable left and right around a shaft 54, and has a pair of guide walls 55 on its upper surface.
are provided in a parallel protruding manner, and the vertical pin 31 is engaged with a groove 56 between the guide walls 55 .

Then, in front of this changeover switch 53, the support rod 20.
Horizontal rollers 30 of pushing bodies 25 and 26 that move together with 21
After positioning with a pair of auxiliary rails 57 and 58 on both sides,
The vertical pins 31 of the pushing bodies 25, 26 engage in the grooves 56 between the guide walls 55 of the changeover switch 53.

At this time, when the changeover switch 54 is rotated to the left, the pushing bodies 25 and 26 move to the left due to the engagement between the vertical pin 31 and the groove 56 of the changeover switch 53, and then move horizontally. The roller 30 engages with the left side of the left guide rail 51, so that the pushing body 25-26 branches to the left guide rail 51 and moves to the left along this guide rail 51.

At this time, when the changeover switch 54 is rotated to the right, the pushing bodies 25 and 26 move to the right due to the engagement between the vertical pin 31 and the groove 56 of the changeover switch 53, and then move horizontally. The roller 30 engages with the right side of the right guide rail 52, whereby the pushing body 25, 26 branches to the right guide rail 52 and moves to the right along this guide rail 52.

In this way, the pushing body 25.2.6 can be branched, and moreover, depending on the activation period of the changeover switch 54,
Pushing bodies 25 and 26 are branched depending on the length of the conveyed object W.
Since the number of items W can be changed, it is possible to distribute and sort the items W to be transported.

〔Effect of the invention〕

As described above, according to the present invention, in the lateral transport device that transports the transported object forward and moves the transported object laterally during transportation, the transported object is moved forward by the pushing body that moves forward together with the transported object. Since the object is pushed from the side by the pushing part, the object is not subjected to impact, and therefore is not damaged or deformed. Since the conveyor is provided at Therefore, it is not necessary to make it very large, and therefore, the movement stroke relative to the support rod can be secured to the maximum, and the device does not become large. Furthermore, the pushing part of the pushing body only protrudes from the top of the support rod of the conveyor, and the height of this pushing part does not need to be very high, so the top of the conveyor can be made into a free space with no obstacles. can do.

Further, according to claim 2, when the conveyed object cannot move due to some reason, the pushing part of the pushing body that approaches from behind pushes the underside of the conveyed object through its ridge and wedge surface. Since the material is inserted into the container, no excessive force is applied to the device, and the possibility of damage to the transported object is reduced.

[Brief explanation of the drawing]

゛ The figures show an embodiment of the conveyance and lateral movement device of the present invention, in which FIG. 1 is a plan view of the merging device, FIG.
4 and 5 are a plan view, a rear view, and a side view showing the relationship between the pushing body and the support rod, FIG. 6 is a plan view showing the arrangement of the guide rail, and FIGS. 7 and 8 are other views. FIG. 2 is a plan view and a rear view of main parts of the embodiment. W: Conveyed object, 5: Merging device as a conveyance lateral movement device,
15.16.17...Chain, 20.21...Support rod, 22...Conveyor, 25.26...Pushing body, 29...
Pushing part, 30...Horizontal roller as an engaging part, 35...Wedge surface, 36...Protrusion, 40.4], 42. 43.
44°45, 51. 52 fist guide rail.

Claims (2)

[Claims] (1) A lateral transport device that transports the transported object forward and moves the transported object laterally, and the transported object is placed between a plurality of endless chains for driving that rotate in synchronization. a conveyor having a large number of support rods arranged in parallel, and a pushing portion that is movable in the longitudinal direction of the support rods and protrudes above the support rods in an upper rotation position. and a large number of pushing bodies for pushing conveyed objects having engaging parts protruding from the lower part of the support rod, and a plurality of pushing bodies provided for the engaging parts of the large number of pushing bodies and engaging with the sides of the engaging parts. A conveyor lateral movement device comprising a guide rail for moving the pushing body to the opposite side. (2) A wedge surface sloped downward toward the front end is formed on the upper surface of the pushing part of the pushing body, and a ridge is formed at the front end of the pushing part to be disposed between the support rods. The conveying and lateral movement device according to claim 1, characterized in that: