JP2828902B2 - Branching guide device for slide shoe in article sorting conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sorts and conveys articles using a slide shoe in a conveying plane of the articles.
It is suitable for sorting easily breakable articles and box-shaped packaging articles.

[0002]

2. Description of the Related Art A guide pin guide device in an article sorting conveyor device using a slide shoe is disclosed in Japanese Unexamined Patent Publication No. 5-722.
As shown in FIG. 3, a guide pin P of a slide shoe on which a guide roller P ′ is fitted is guided in a guide groove G in an arrow direction as shown in FIG. A switch rail S for switching the branch of the guide pin P is pivotally supported at a branch portion of the cam rail R which branches further in a direction indicated by an arrow.

[0003] The switch rail S is shown in FIG.
, The boat-shaped guide pin P of the running slide shoe comes into contact with the slope forming the branch cam rail R-direction guide surface SA of the switch rail S. (C)
(D)
As described above, the spring collides with the guide surface of the branch cam rail R again and repeatedly bounces.

[0004]

In the above-mentioned prior art, the slide shoe repeatedly hits and rebounds the guide pin at the branch portion, thereby generating a contact noise and deteriorating the working environment.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention relates to a slide cam which is formed on one side of a switch rail for switching a runway provided at a branch portion, and is provided with a slide shoe. The guide pin is formed on a concave curved surface for preventing contact with the guide pin connected to the guide groove of the guide pin. The concave curved surface guides the guide pin in the branching direction, and guides the repulsion caused by the transfer of the guide pin transferred to the switch rail. A guide plate which abuts and absorbs a guide roller externally fitted on a pin is provided opposite to the switch rail so as to face the branch cam rail direction guide surface of the switch rail.

[0006]

When the guide pin moves from the guide groove to the starting end of the guide surface of the switch rail in the direction of the diverging cam rail, the guide pin moves along the concave curved surface without abutting against the guide pin abutment suppressing concave surface connected to the guide groove. Since the guide pin is guided, the guide pin is guided to the guide slope of the branch cam rail while gradually changing the direction along the concave curved surface, so that the contact repulsion from the switch rail guide surface is suppressed to a minimum, and the guide is further performed. By mounting a guide plate on the switch rail to absorb and absorb the repulsion of the transfer of the switch rail to the switch rail by abutting the guide roller externally fitted on the guide pin, the contact noise when the slide shoe shifts to the branch is significantly reduced. Let it.

[0007]

FIG. 1 is a perspective view of a main part of a slide shoe branching part of an article sorting conveyor device using a slide shoe, in which a number of shaft rods B are arranged in parallel and both ends of the shaft rods are respectively placed on guide rails. Are connected to a driving conveyor chain C which travels, and slide slides 1 are provided along the shaft rods so as to be slidable, and each of the slide shoes 1 protrudes below the shaft rod B and travels in the guide groove G. An article sorting conveyor device in which a boat-shaped guide pin P is provided, and a branch cam rail R that guides the guide pin P and slides the article sorting slide shoe 1 along the shaft rod B is provided by branching from the guide groove G. Yes, the sorting product A is the shaft B
When the article is conveyed on the upper side and the article is branched and conveyed to the branch path D, the slide shoe located on the left side of the main conveyance path in FIG. This is performed by switching the switch rail 2 and moving the article A to the right side and pushing out the article A to the branch road D side.
(A)-(d) is a principal part enlarged plan view of the branch part of the slide shoe guide pin P for moving the slide shoe 1 widthwise to the right.

In FIG. 2A, when the changeover switch rail 2 at the branch portion is at the position shown in the figure, the guide shoe P goes straight and passes through the guide groove G, so that the slide shoe 1 goes straight. When the switch rail 2 is switched to the position shown in FIG. 2B, the guide pin P is guided by the switch rail 2 and is guided and guided by the branch cam rail R.
Is moved to the switch rail 2, the starting end 2A of the branch cam rail direction guide surface formed on one surface of the switch rail 2 is formed into a guide pin abutment suppressing concave surface which is connected to the guide groove G, for example, an arc surface. Therefore, the guide pin does not directly contact the guide slope of the switch rail as in the prior art, but the impact is suppressed by the concave curved surface as shown in FIG. As it is guided and skewed, impact noise is reduced,
A guide plate 3 that absorbs the contact repulsion of a guide pin provided on the switch rail 2 by contacting and guiding a guide roller P ′ fitted externally to the guide pin, for example, urethane rubber, neoprene rubber,
Due to the guide plate having a shock absorbing material such as thermoplastic elastomer resin, when the guide pin is transferred to the switch rail, some repulsion occurs due to contact with the switch rail and it may bounce off the switch rail. In addition, the repulsion is absorbed by the abutment of the guide roller P ′ externally fitted on the guide pin P against the guide plate 3, so that the slide shoe does not give an unstable floating behavior and the repulsion noise is reduced. Can be absorbed as much as possible.

[0009]

The present invention is directed to a guide groove for guiding a guide pin in a straight traveling direction at a start end of a branch cam rail direction guide surface formed on one surface of a branch switch switch rail of a slide shoe guide pin at a slide shoe branch portion. Since the connected concave curved surface is formed, when the guide pin moves from the guide groove to the concave curved surface start end of the switch rail, the guide pin is slidably guided without impact on the concave curved surface of the switch rail start end, and gradually. Since the guide rail is guided along the inclined guide surface of the cam rail following the concave curved surface, shock contact between the guide pin and the start end of the switch rail at the time of transfer is avoided, and the generation of noise due to the collision is significantly suppressed. Opposed to the branch cam rail direction guide surface of the switch rail, the guide pin is generated by bending of the switch rail when the guide pin moves onto the switch rail. A guide plate that absorbs the transfer repulsion that comes into contact with the guide pin and absorbs the transfer repulsion is provided opposite to the switch rail, so that the slide shoe slides smoothly and quietly on the shaft rod and is stable. In addition to the above, the present invention has an extraordinary effect such that the contact noise between the guide pin and the switch rail at the branch portion can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a branching part of an article sorting conveyor device using a slide shoe.

FIGS. 2A and 2B are explanatory diagrams of an operation of a branch switch rail in a branch portion, wherein FIG. 2A is a state of a guide pin linear operation, FIG. 2B is a state of a guide pin branch operation, and FIG. (D) is a state where the guide pin is guided by the branch cam rail.

FIG. 3 is an operation explanatory view of a conventional example corresponding to FIGS. 2 (a) to 2 (d), respectively.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Slide shoe 2 Branch switch rail 2A Concave curved surface for preventing contact of switch rail connected to guide groove 3 Guide plate for absorbing repulsion of transfer of guide pin to switch rail G Guide groove for guide pin P Guide pin P 'guide Guide roller externally fitted to pin R Branch cam rail

Continuation of the front page (56) References JP-A-5-8823 (JP, A) JP-A-3-284528 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65G 17 / 06 B65G 47/64 B65G 47/68 B65G 47/28-47/31

Claims (1)

(57) [Claims] 1. A plurality of shafts are arranged in parallel, and both ends of the shafts are connected to a drive conveyor chain running on guide rails, respectively, and an article sorting slide shoe slidable along the shafts is provided. A guide pin is provided on each of the slide shoes so as to protrude below the shaft rod and travels in the guide groove, and a branch cam rail for guiding the guide pin and sliding the article sorting slide shoe along the shaft rod is provided. In an article sorting conveyor device provided by branching from a guide groove, a guide pin abutment suppressing recess for connecting a start end of a branch cam rail direction guide surface formed on one surface of a switch rail provided at a branch portion of the slide shoe to the guide groove. The slide cam is formed in a curved surface and faces the branch cam rail direction guide surface.
Id shoe guide pin switch rail transfer repulsion, plan
Absorb by guiding and guiding the guide roller externally fitted to the inner pin
A branch guide device having a guide plate opposed to the switch rail.