JP2804721B2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for transferring a work by itself without providing a driving device, wherein the work can be stopped always with a gap between adjacent works on a transfer surface. The present invention relates to a transfer device capable of preventing damage to a work.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, a conveying conveyor c is known in which a conveying surface f is inclined downward from an upstream side to a downstream side in a conveying direction and a work w is conveyed by utilizing gravity caused by a head drop of the conveying surface. ing. Further, as such a conveyor c, a so-called roller conveyor in which a plurality of rollers r... Which can freely rotate without providing a driving device are arranged in the conveying direction is widely used.

[0003]

In the case where a plurality of works w are naturally conveyed downstream by using such a conveying apparatus, when the work w positioned at the head is stopped using a stopper s or the like. , The succeeding work proceeds without stopping and collides with the preceding work w. At times, there is a great risk that the work w will be damaged, such as riding on the preceding work w.

[0004] In particular, when the work w is a soft object such as a tire member formed of unvulcanized rubber of a tire, there is even a risk that the two works w and w adhere to each other due to collision and become unusable. is there.

As shown by a dashed line in FIG. 4, there is a type provided with a second stopper s 'for stopping the succeeding work w on the upstream side, but the operation is performed between a plurality of stoppers s, s'. Must be synchronized, the structure becomes complicated, and the cost is increased.

The present invention is based on arranging a plurality of transfer tools with a transfer surface exceeding the length of the work and providing a gap over which the work can be arranged. It is an object of the present invention to provide a transport device that can prevent the above problem and solve the above-mentioned problem.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a transfer apparatus having a stopper which inclines downward from an upstream side to a downstream side, makes the work self-propelled by utilizing its gravity, and has a stopper at a downstream end for stopping the work. A plurality of transfer tools which have a transfer surface longer than the length of the work and are arranged in the transfer direction with a gap beyond the work, and the transfer surface is stationary due to friction with the work when the work is stopped. Are arranged in the transport direction.

The carrier may be a belt conveyor, or may be formed as a roller conveyor in which a plurality of rollers which are wound around an endless string and rotate synchronously are juxtaposed.

[0009]

With the above arrangement, the work located at the head is stopped by the stopper, so that the transfer surface of the transfer tool disposed immediately after the stopper is stopped. Due to the stop of the transfer surface, the leading end of the subsequent work, which is directed in the transfer direction, stops upon being transferred to the transfer tool.

[0010] Since the transfer tool has a transfer surface longer than the work, the succeeding work always stops with an interval between it and the preceding work. Further, since the gap between the transfer tools is formed to be a gap that the work can exceed, the transfer of the work between the transfer tools is performed smoothly.

Further, as long as the preceding work stops, the succeeding work can also be stopped with an interval from the preceding work by the above-described operation. Therefore, the preceding and succeeding works can be stopped without colliding, and the work can be prevented from being damaged when the transfer device stops.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, taking a case where a conveyor is a belt conveyor as an example.

1 and 2, the transfer device 1 is provided with a stopper 5 which is inclined downward from the upstream side to the downstream side and stops the work W at the downstream end.

The work W is a plate-like body made of soft raw rubber in the present embodiment, and is formed, for example, as a raw cover body before vulcanization constituting a tire.

The transfer device 1 is formed by arranging a plurality of transfer tools 2 each composed of a belt conveyor 3 in the transfer direction. As shown in FIG. 2, the belt conveyor 3 includes a pair of side pieces 13, 13 from both sides of a base piece 12. A pair of free pulleys 15A and 15B are rotatably extended, and both free pulleys 15A and 15B rotate freely without engaging with a driving device. A belt 16 made of rubber having a high frictional force is wound between the free pulleys 15A and 15B. The upper surface of the belt 16 forms the transport surface 6.

The front free pulley 15A is disposed at a lower position than the rear free pulley 15B. Therefore, in this embodiment, the transport surface 6 is formed as an inclined surface on which the front free pulley 15A side is lowered. Is preferably in the range of 3 to 15 degrees. Also, the front and rear free pulleys 15
The length L of the transfer surface formed by the distance between A and 15B is set to be larger than the length 1 of the work W in the transfer direction.

The belt conveyor 3 thus formed
When the workpiece W is placed on the transport surface 6, the upward movement of the belt 16 in the transport direction due to the gravity of the workpiece W causes the belt 16 to transport the workpiece W downstream.

The belt conveyor 3A located at the most downstream end
, The stopper 5 is provided on the downstream side of the front free pulley 15A. The stopper 5 is connected to the base piece 12.
An expandable tool 22 such as an air cylinder having an upwardly directed rod is erected on a base piece 21 that extends upward, and a stopper piece 23 that can protrude and retract from the transport surface 6 by the operation of the expandable tool 22 at the tip of the rod. Provided.

The work W is stopped on the belt conveyor 3 by the projection of the stopper member 23, and the stop of the work W stops the rotation of the belt 16.

On the upstream side of the belt conveyor 3A, an upstream belt conveyor 3B, which is similarly formed and has the conveying surface 6 substantially flush with each other, is disposed with a gap G over which the work W passes. Therefore, the work W is transported between the two belt conveyors 3A, 3A.
The transfer between B becomes possible.

Similarly, on the upstream side of the belt conveyor 3B,
Plural belt conveyors 3 having transport surfaces 6 of substantially the same length
Are extended to the upstream ends with the gaps G between the belt conveyors 3B, 3C, 3D,.

However, the work W placed on the transport surface 6 at the upstream end is advanced downward by rotating the belt 16 by its own weight when the transport surface 6 is inclined downward. Since the belt conveyor 3 is connected with a gap G between the belt conveyors 3 and 3 through which the work W can get over, the work W moves over the gap G and sequentially moves to the belt conveyor 3 on the downstream side. By repeating the same operation, the work W can reach the belt conveyor 3A located at the downstream end.

The belt 16 stops rotating by projecting the stopper 5 and stopping the work W. Thereby, when the leading end of the succeeding work W moves to the belt conveyor 3A located at the downstream end, the belt 16
Since the rotation of is forcibly stopped by the stop of the preceding work W, the succeeding work W stops.

Since the conveying surface 6 of the belt conveyor 3 is set at a position L longer than the length l of the work W, there is a space of (L-1) between the two works W. To stop and prevent collision between works.

Further, the succeeding workpieces W can similarly be sequentially stopped while maintaining an interval of (L-1) with the upstream workpiece W.

The inclination angle θ of the conveying surface 6 can be changed as appropriate depending on the weight of the work and the like, and the conveying of each belt conveyor 3 in the series of continuous belt conveyors 3 from the upstream end to the downstream end. The inclination angle θ of the surface 6 may be set individually.

FIG. 3 shows another embodiment in which the conveying tool 2 is formed by a roller conveyor 4. In this embodiment, the roller conveyor 4 has four rollers 9... Arranged side by side in the transport direction, and the work 9 is coated with a rubber coating on its peripheral surface in order to increase the frictional force with the work W. Of the four rollers 9, a lower end roller 9A located at the downstream end and an upper end roller 9B located at the upstream end are wrapped with an endless cord-like body 10 such as a rope or a chain, and are synchronized in the same direction and at the same speed. Rotate. In the roller conveyor 4, each roller 9 ...
A tangent connecting the upper surfaces of the rollers is the transport surface 6, and the distance between the lower roller 9A and the upper roller 9B is the length L of the transport surface.

On the downstream side of the roller conveyor 4A located at the downstream end, there is provided a stopper 5 having substantially the same structure as the stopper having the structure shown in FIG.

However, the workpiece W which moves by itself from the upstream end to the downstream end stops when it comes into contact with the stopper 5. By this stop, the lower end roller 9A is also stopped, and the upper end roller 9B linked to the lower end roller 9A and the endless cord body 10 is also stopped.

When the upper end roller 9B is stationary, the subsequent work W stops when it comes into contact with the upper end roller 9B, and the lower end and upper end rollers 9A and 9B of the roller conveyor 4B located on the upstream side are stopped by this stop. Let it stand still.

Therefore, by setting the length L of the conveying surface to be longer than the length l of the work W, even if the preceding work W is stopped by the stopper 5, the succeeding work W will not move. Can be prevented from colliding with the work W,
The work W can be prevented from being damaged.

It is to be noted that all the rollers 9 may be formed so as to be able to simultaneously rotate and stand still in synchronization with the lower roller 9A.

The conveyor may be a chain conveyor such as a flat top conveyor or a slat conveyor if the upstream and downstream ends can be stopped synchronously by stopping the work. Can be transformed into things.

[0034]

As described above, the transfer apparatus of the present invention is formed by arranging the above-described transfer tools in the transfer direction, so that a plurality of works conveyed sequentially can be stopped at the downstream end. In addition, the following work can be stopped with a gap between the preceding work and the work can be prevented from being damaged due to collision between the works, and is suitable for transporting a deformable work such as a raw cover of a tire member. Can be adopted.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a perspective view showing a main part thereof.

FIG. 3 is a front view showing another embodiment.

FIG. 4 is a front view showing a conventional technique.

[Explanation of symbols]

 2 Conveyor 3 Belt Conveyor 4 Roller Conveyor 5 Stopper 6 Conveying Surface 9, 9A, 9B Roller 10 Endless String L Length of Conveying Surface l Length of Work G Gap

Claims (3)

(57) [Claims] 1. A transfer device that is inclined downward from an upstream side to a downstream side and that makes a work self-propelled by utilizing its gravity, and is provided with a stopper at a downstream end for stopping the work, the transfer device being longer than the length of the work. A plurality of transfer tools having a transfer surface and being disposed in the transfer direction with a gap beyond the work being provided, and having a transfer surface stationary due to friction with the work when the work is stopped, are arranged in the transfer direction. A conveying device characterized by the above-mentioned. 2. The transport device according to claim 1, wherein said transport tool comprises a belt conveyor. 3. The transport device according to claim 1, wherein the transport tool comprises a roller conveyor in which a plurality of rollers around which an endless cord is wound are arranged side by side.