JPH07947U - Sorting device - Google Patents

Abstract

(57) [Summary] [Purpose] The collision between the projection of the moving shoe and the guide rail is buffered in two steps at the branch point of the transport path to prevent damage. [Structure] A substantially trapezoidal branch guide member 12 is provided at a branch portion between main line guide path a and branch guide path b of guide rails 7 and 8 provided immediately below the main line transfer path and the branch transfer path of the slat conveyor. Is arranged so as to be pivotable in the vertical direction along the flow of the guide path via a pivot shaft (L), and the upper edge portion 9a of the front side of the branch guide member and the entire surface S are located on the side of the branch guide path. The side 11a and the side 11b on the main road guideway side are tapered, and the upper side 9 is normally floated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sorting device, and more particularly, to a branch conveying path that laterally extends a conveyed article on a slat conveyor that is attached to a branch portion of a slat conveyor having a branch conveying path and forms a straight main conveying path. It is related to the sorting device for guiding to.

[0002]

[Prior art]

 In general, a sorting device using a slat conveyor is arranged transversely to the conveyor passage in order to guide a conveyed article traveling straight on the slat conveyor to a branch passage formed by a roller conveyor or the like. A movable shoe is provided which is slidable on each of a number of slat bars, and a grooved cam rail is disposed below the conveyor shoes and branch paths.

According to one related art, a guide roller is attached to a leg portion of a moving shoe, and a guide pin projects below the leg portion, and a tip portion of the guide pin is fitted into the grooved cam rail. There is. At the same time, the cam rail has a branch portion. A sorting device of this type is described in JP-A-5-722. In this device, the branch portion of the cam rail is equipped with a switch rail for switching between the main rail guide rail and the branch rail, and switching of the switch rail is possible. In order to protect the guide pins from breakage when they are insufficient, the main rail guide rails are provided with the guide pins and floating rails to escape the moving shoe. The floating rail has a sloped surface that competes in the direction of travel, and the tip of the floating rail consists of a generally trapezoidal block that is spring-loaded upward.

Therefore, although the floating rail is pushed down by the tip of the guide pin passing the inclined surface, the recoil of the spring causes vibration after passing, and the guide pin to be passed next is at the rear end of the floating rail. There is a risk of getting caught or getting into the branch rail. In another conventional technique, a moving shoe has a guide roller rotatably attached to its leg, and a guide groove having a branch portion fitted to the roller is provided. However, since no special device is applied to this branch, when the roller fails to enter the branch groove, the roller collides with the sharp tip of the branch and not only the moving shoe but also the sorting device. A large amount of shock is generated on the whole, which may lead to damage to the device. Even if it is not damaged, the safety device may operate and cause a malfunction.

[0005]

[Problems to be solved by the device]

 In such a conventional sorting apparatus, there were many problems as described above, especially regarding the branch portion of the guide rail. Therefore, an object of the present invention is to provide a sorting device that operates safely and reliably, and also to provide a sorting device that has a simple structure and is easy to assemble and maintain.

[0006]

[Means for Solving the Problems]

 The above-mentioned object of the present invention is to sort the articles on the slat conveyor constituting the straight main conveyance path to the laterally branched branch conveyance path by the moving shoe slidably attached to the slat bar. A device, which is rotatably attached to a pin that hangs from the moving shoe, and a main line guide path that corresponds to the main line conveyance path and the branch conveyance path and that is guided by the protrusions engaging with each other. A guide rail formed of a branch guide path, and a branch guide member having a substantially trapezoidal plate shape, which is disposed at a branch point between the main road guide path and the branch guide path, and a front side of the branch guide member The upstream side of the main line guideway and the rear side toward the downstream side, and one side is arranged on the branch guideway side and the other side is arranged on the mainline guideway side, and the rear surface of the member is parallel to the rear side. Pivoted to the side And the entire upper surface of the front side of the branch guide member is tapered from the side of the branch guideway side to the side of the main guideway side. Only when the protrusion contacts the front side, the front side moves downward to return the protrusion to the main line guide path along the front side and the surface. Achieved by a characterizing sorting device.

[0007]

[Action]

 When the protrusion of the moving shoe collides with the front side of the branch guide member, the front side descends, but before the collision, the pivot and the load means are attached to the rear side of the rear side of the member, so-called the principle of leverage. Is working, and the front side is in a state of being lifted upward during normal times. Therefore, the descent of the front side due to a collision involves some resistance, and this resistance creates a buffering effect, which buffers the shock received by the protrusion. Further, the protrusions ride on the taper surface formed on the upper edge of the front side to further cushion the tape.

The protrusion that has passed through the upper edge tapered surface moves onto the tapered surface that is inclined toward the main road guideway side, and obliquely moves on the tapered surface toward the main road guideway, and then on the pivot axis. After passing the portion, the branch guide member is restored to its original position, and the protrusion is completely fitted in the guide path. Therefore, the moving shoe that could not slide on the side of the branch conveyance path remains on the main conveyance path.

[0009]

【Example】

 FIG. 1 is a perspective view of an essential part of an embodiment of a sorting apparatus according to the present invention. The conveyor to which the sorting apparatus according to the present invention is applied is mainly a slat conveyor indicated by reference numeral 1. The slat conveyor 1 forms a main line conveyance path A, and another roller conveyor arranged so as to intersect in the lateral direction forms a branch conveyance path B.

The slat conveyor 1 is a series of slat conveyors 1 in which a drive chain 4 arranged on both sides of a conveyor base is closely arranged in a transverse direction in order to move an article M placed thereon straight in a direction indicated by an arrow. A slat 2 consisting of a pair of slat bars 5 is driven in the direction of the arrow. The slat bars 5 form two pairs in the figure, and the movable shoes 3 are slidably attached to each pair, and the articles M to be conveyed are provided on the branch conveying path B. When it moves upward, the moving shoe 3 sequentially moves on the slat and contacts the lower part of the side surface of the conveyed article to direct the conveyed article M toward the branch passage B.

FIG. 2 is a plan view of the guide paths arranged immediately below the main path A and the branch path B shown in FIG. 1 and corresponding to these paths. This guideway has a mainline guideway a defined by two mainline rails 7 and 7 which stand parallel to each other and correspond to the straight mainline conveyance path A. A branch guide path b corresponding to the branch conveyor path B defined by the rails 8 and 8a is provided directly below each conveyor path so as to branch from the main road guide path a, and A branch guide member 12 formed of a substantially trapezoidal plate-like member is arranged so as to be vertically pivotable in a portion sandwiched by the inner rails 7a and 7b.

FIG. 3 is an enlarged perspective view of a main portion of the guide path, showing mainly the details of the branch guide member 12 and the projection 6 engaging with the guide path. The movable shoe 3 has a pin 13 hanging from the lower surface thereof, and a protrusion 6 formed by a disc-shaped roller is rotatably attached to the pin 13. Therefore, the two guide paths a and b and the projection 6 act as a cam and a cam follower.

The inner side surfaces of the pair of rails of these two guide paths form guide surfaces for the projections 6, respectively, and as is particularly clear from FIG. 2, the branch guide path facing the branch guide member 12 is formed. The inner surface of the outer rail 8 of b is preferably partially formed by the magnetic wall 14, and behind it, a solenoid around which a coil 15 is wound is arranged, and further attached. An electromagnetic switching device 9 is formed together with a position sensor, a switching circuit and the like (not shown). This electromagnetic switching device attracts the protrusion 6 of the moving shoe 3 which is usually made of a magnetic material or is separately attached and guides it to the side of the branch guide path b. Therefore, the electromagnetic switching device 9 controls switching of the branch conveyance path b.

As shown in FIG. 2, when the projection 6 is switched to the main road guide path a or the branch guide path b, the projection 6-0 located before the first branch is inserted into the branch. Thus, normally, it is sucked toward the branch path b in the state of 6-1. However, when a situation occurs in which the protrusion cannot be sufficiently attracted to the branch guideway b side, such as when the switching timing is shifted or when the sliding of the moving shoe 3 is accompanied by excessive resistance, the protrusion 6- It may collide with the branch guide member 12 as shown in No. 3, or may escape to the main road guideway a as it is as shown in 6-2.

In particular, when the protrusion 6 collides with the branch guide member 12, it can be seen that the movable shoe is seriously damaged and rendered unusable. Such a situation sometimes causes the entire sorting device to go crazy and cause great damage. Since this kind of equipment is used especially for flow work, even if such a situation occurs even once, the entire conveyor must be stopped for inspection and repair, which is extremely economical due to stagnation of work. It can cause damage.

However, in the present invention, in order to avoid the above-mentioned inconvenience, in particular, the shape and the structure of the branch guide member 12 are devised so as to buffer the collision as described above. The details will be described below with reference to FIG. The branch guide member 12 is made of a substantially trapezoidal plate, and is arranged with its front side 10 facing the upstream side of the main road. The rear side 11 is arranged downstream, the one side 11a is arranged on the branch guideway a side, and the other side 11b is arranged on the main line guideway a side. Further, it is fixed to the guideway base so as to be pivotable about an axis L pivotally attached to the rear surface R side of the member in parallel with the rear side 11.

A tapered surface F is formed on the upper edge 9a of the front side 10 of the branch guide member 12, and when the projection 6 collides with this upper edge, the front side 1 is normally lifted upward. Zero falls at a dash, and most of the shock generated by the collision is buffered. After that, the trajectory P is followed and the taper surface F is suddenly climbed up and a cushioning effect is exerted on the projection 6. Further, the entire surface S of the branch guide member 12 is also inclined to a tapered surface from the side edge 11a on the side of the branch guideway to the side edge 11b on the side of the main road guideway, and once the projection 6 rides on this tapered surface. The projection 6 further traces the locus P inclined to the main road guideway side. When the protrusion 6 further advances and reaches the axis L, that is, when it reaches the axis, the guide member is pivoted, the rear side 10 descends to its original position, and the inclination toward the main road guideway side further increases. As a result, it is securely inserted into the main road guideway a as if it were falling.

A load means W is attached to the rear surface R near the rear side 10 of the branch guide member 12, and the front side 9 is levitated by the "principle of leverage" as described above. Further, the loading means W is specifically composed of a weight or a permanent magnet. In order to control this pivotal force to a desired value, it is also preferable to use an electromagnetic solenoid in the sense that the damping force is controlled within an appropriate range.

[0019]

[Effect of device]

 In the sorting device according to the present invention, even if the protrusion 6 integrated with the moving shoe 3 collides with the branch guide member 12 having two different pivotable taper surfaces in different directions, which is located at the branch portion of the transport path, the protrusion 6 is caught. The impact at that time is eliminated in two stages, and the projection 6 travels on the branch guide member extremely safely and surely to reach the main road guideway without difficulty. The effect that breakage can be avoided is obtained, and therefore, the substantial effect that maintenance and management of the conveyor itself is easy can be expected.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of an embodiment of a sorting apparatus according to the present invention.

FIG. 2 is a plan view of guide paths corresponding to a main line conveyance path A and a branch conveyance path B shown in FIG.

FIG. 3 is an enlarged perspective view of a main part of FIG.

[Explanation of symbols]

 1 Slat Conveyor 2 Slat 3 Moving Shoe 5 Slat Bar 6 Projection 9 Upper Side 9a Upper Edge 10 Lower Side 11a One Side 11b The Other Side 12 Branch Guide Member 13 Pins A Main Line Conveyor Line M Article B Branch Conveyor Line a Main Line Guide path b Branch guide path L axis S Surface of branch guide member R Back surface of branch guide member W Load means

Claims (1)

[Scope of utility model registration request] 1. An article (M) on a slat conveyor (1) which constitutes a straight main traveling path (A) is laterally moved by a moving shoe (3) slidably attached to a slat bar (5). A sorting device for guiding to a branching conveyance path (B) that branches off, the protrusion (6) rotatably attached to a pin (13) hanging from the moving shoe, the main conveyance path and the branching conveyance. A guide rail which corresponds to a road and is guided by the projections engaging with each other and having a main line guide path (a) and a branch guide path (b); A branch guide member (12) having a substantially trapezoidal plate shape, the front side (9) of the branch guide member being upstream of the main line guideway (a) and the rear side (10) being downstream. Toward the side and one side (11a) is a branch guideway , The other side (11
b) is arranged on the main road guide path side and is made pivotable about an axis (L) pivotally mounted on the back side of the member in parallel to the rear side, and the upper edge portion (9a) of the front side of the branch guide member is provided. ) And the whole surface (S) are respectively tapered from the side (11a) on the side of the branch guideway to the side (11b) on the side of the main road, and the branch guide member (12) is formed on the front side (9). The front side (9) moves downward only when the protrusion (6) comes into contact, and the protrusion (6) is moved along the front side (9) and the surface (S) to the main line. A sorting device configured to return to the guide path (a).