JPH0616233A - Fixed position stop device - Google Patents

Abstract

PURPOSE:To stop a conveyed article surely in a fixed position without giving a shock to the conveyed article. CONSTITUTION:A stopper arm 4 supported on a body frame l is inclined/raised with the lower face thereof supported by a rolling roller 72. This stopper arm 4 is provided with a stopper lever 7, absorbing/relaxing the impact force of a conveyed article through a shock absorber 9, in the freely inclined/raised state. The stopper lever 7 is protruded/recessed onto/from a carrier line by the movement of the roller 72 through the stopper arm 4. Accordingly, even if the carrier speed is high or the mass is large, the conveyed article can be stopped in a fixed position in the noise suppressed state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed-position stop device that can reliably stop a conveyed article at a fixed position without giving an impact.

[0002]

2. Description of the Related Art As a method of stopping an article to be conveyed by a conveying means such as a roller conveyor at a fixed position, a stopper is projected between the rollers below the conveyor, and the conveyed article is brought into contact with the stopper protruding on the roller conveyor. The general method is to stop it.

[0003]

An article conveyed on a conveying means such as a roller conveyor is forcibly stopped in a state of colliding with a stopper protruding on the roller conveyor. In this case, if the transported article is heavy or is transported at high speed, the impact of collision of the transported article with the stopper becomes large due to the transportation inertia and mass of the transported article, which damages the transported article and the home position stop device. However, there is a disadvantage that the impact force of the conveyed article on the stopper bounces off as a reaction force and cannot be accurately stopped at a fixed position.

It is an object of the present invention to absorb the inertial thrust of a conveyed article, absorb the impact, and accurately stop the article at a fixed position.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and the lower surface of a stopper arm supported by a main body frame is supported by a roller that rolls to tilt the stopper arm. At the same time, the stopper arm is provided with a stopper lever for absorbing and relaxing the impact force of the conveyed article by a shock absorber, and the stopper lever is moved into and out of the conveying line via the stopper arm by the movement of the roller. The purpose is to do so.

[0006]

When the conveyed article conveyed on the conveying line comes into contact with the stopper lever projecting on the line, the impact force of the conveyed article due to the lever is absorbed and relaxed, and the conveyed article is accurately stopped at a fixed position. Then, at the time of re-conveyance, the stopper arm is tilted by the movement of the roller, so that the stopper lever is sunk under the conveyance line and is conveyed smoothly. Therefore, high-speed transportation and stopping of a large-mass article at a fixed position can be accurately performed without damaging the article or the like.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiments. In the figure, A is a fixed position stop device installed below the pallet transfer line L of a transfer means such as a roller conveyor,
In this fixed position stop device A, a cylinder 2 is attached to one end of the main body frame 1. This main body frame 1 is integrally formed by protruding brackets 13 and 13 in parallel with the stroke of the cylinder 2 on the upper surfaces of both sides of a bottom plate 12 having mounting brackets 11 attached to the frame of the conveying means by bolts or the like. The cylinder 2 is fixed to the cylinder mounting plate 14 provided at one end of the brackets 13 and 13 so as to connect the brackets 13 and 13.

The shaft 3 penetrates and supports the upper portion of the cylinder side ends of the opposing brackets 13 and 13, and the bracket 1
The proximal end side of the stopper arm 4 arranged between the No. 3 and No. 13 is supported by the shaft 3, and the tip end side of the stopper arm 4 acts as a downward force if necessary, that is, the stopper arm is Unless an external force is applied, the coiled spring 5 is supported by the shaft 3 so as to keep the tilted state, both ends of the spring are locked to the bracket 13 and the stopper arm 4, respectively, and the stopper is applied by this spring pressure. The arm 4 is tilted.

The stopper arm 4 has a shaft 6 on the front end side.
The lower end of the stopper lever 7 is pivotally attached via this, and the spring 8 is supported on this shaft 6, and the end of the spring 8 is locked by the stopper arm 4 and the stopper lever 7 so that the stopper repeller 7 always stands up. Excuse me.

The stopper arm 4 is provided with a shock absorber 9, and the rod 9 of the shock absorber 9 is provided.
1 is brought into contact with the lower end side surface 71 of the stopper lever 7, and at the same time, a lower end surface of the stopper arm 4 is integrally formed with a projection 72 having at least one side surface as an inclined surface. The roller 10 is arranged at the tip of the rod, and the outer peripheral surface of the roller 10 and the projection 72 are constantly in contact with each other, and the stopper arm 4 is prevented from further tilting from the home position.

A roller mounting member 22 is fixed to the rod 21 of the cylinder 2, and a shaft 23 mounted horizontally on the roller mounting member 22.
Since the rod 21 keeps horizontal and moves in and out, the roller 24 rolling on the bottom plate 12 and the roller 10 having a slightly smaller diameter than the roller 24 are supported coaxially.

A roller 72 is attached to the tip of the stopper lever 7.
Is supported and comes into contact with a conveyed article conveyed on the conveyance line L, for example, a pallet P or the like, and stops it at a fixed position.

Therefore, the operation of the home position apparatus constructed as described above will be described with reference to FIG. When the conveyed article P conveyed on the conveyance line L comes into contact with the roller 72 of the stopper lever 7 protruding above the line L at a fixed position as shown in (1) of FIG. Due to inertia, the stopper lever 7 is pushed by the conveyed article P in the conveying direction as shown in FIG. As a result, when the stopper lever 7 in a slightly tilted state stands up, the rod 91 of the shock absorber 9 is pushed by the lower end surface 71 of the lever, so that the impact force of the conveyed article acting on the stopper lever 7 is It is absorbed and stops in place. In this case, since the rod of the cylinder 2 projects, the roller 10 supports the lower surface of the protrusion 72 of the stopper arm.

Next, when the conveyed article P is re-conveyed, when the roller 10 is rolled by the cylinder 2 toward the cylinder on the bottom plate 12, the lower surface of the protrusion 72 of the stopper arm is shown as (3) in FIG. The supporting surface of the roller 10 moves to the more inclined surface. Therefore, the stopper arm 7 is inclined so that the front end side becomes lower, so that the position of the roller 72 at the front end of the stopper lever is lower than the conveyance line L, the stopper does not work, and the conveyed article P is reconveyed. And the conveyed articles P
When the roller passes the position of the roller 72, the roller 10 of the cylinder 2 is returned to the original position, but the upper part of the roller 10 is pressed by the lower bottom surface of the conveyed article P, and the stopper lever 7
Is pushed down against the spring 8 and allows the conveyed articles to pass therethrough. This state is shown by (4) in FIG. When the conveyed article P completely passes through the fixed position stopping device A, the stopper lever 7 returns to the original standing state by the action of the spring 8 as shown in FIG. It becomes a standby state to stop at.

The stopper arm 4 can be in an inclined state in which the tip is lowered by its own weight, and the strength of the shock absorber can be adjusted.

[0016]

According to the present invention, a shock absorber and a stopper lever that absorbs and absorbs the impact force of a conveyed article are provided in a stopper arm that is supported by the lower surface of a roller and tilted with its lower surface supported. Since it is designed to project on the tip of the stopper lever and the transfer line,
Even if the conveying speed is high or the mass is large, it has an advantage that noise can be suppressed and stopped at a fixed position, and the operation can be easily performed only by rolling the roller supporting the lower part of the stopper arm.

[Brief description of drawings]

FIG. 1 is a sectional view of a home position stopping device of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is an operation explanatory view.

[Explanation of symbols]

 1 Main body frame 2 Cylinder 4 Stopper arm 7 Stopper lever 72 Roller 9 Shock absorber 10 Roller

Claims (1)

[Claims] 1. A lower surface of a stopper arm supported by a main body frame is supported by a roller that rolls to tilt the stopper arm, and the stopper arm absorbs an impact force of a conveyed article by a shock absorber. A fixed-position stop device characterized in that a stopper lever for relaxing is provided so as to be tiltable, and the stopper lever is moved into and out of a conveyance line via a stopper arm by the movement of the roller.