JP3358858B2 - Conveyor device for tread - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tread conveyor.

[0002]

2. Description of the Related Art In a tread manufacturing process, a tread extruded from an extruder passes through various sections and is finally stocked on a tray or the like.

As a means for transporting the tread, for example, a roller conveyor is conventionally used.
That is, when the tread immediately after extrusion is transported on a belt conveyor because of its high adhesiveness, due to continuous use for a long time, a part of the tread adheres to the belt of the belt conveyor, and the belt surface is covered with the adhesive. As a result, the result was unfavorable in terms of quality.

[0004] Further, the tread immediately after extrusion gradually shrinks, and the tension of the tread cannot be controlled by tension on a belt conveyor.
Weight control was also to be hindered.

Therefore, conventionally, a roller conveyer has been used as this type of conveying means as described above.

[0006]

However, the thickness of the tread varies depending on the type and size of the tire. However, when the tread has a thickness of 5 to 30 mm, and especially about 5 to 10 mm, the tread has a rigidity immediately after extrusion. Is extremely small.

Therefore, as shown in FIG. 5, when a tread a having a low rigidity is conveyed by a roller conveyor b, the leading end c of the tread a becomes the rollers d, d (each roller d) constituting the roller conveyor b. Rotates as indicated by arrow e.)
There is a possibility that the sheet may enter the space and cannot be transported.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tread conveyor device that can reliably convey a tread to a desired portion by a roller conveyor by automatically folding a tip portion of the tread.

[0009]

In order to achieve the above-mentioned object, a tread conveyor device according to the present invention is provided at a position upstream of a roller conveyor for transporting a tread in a direction opposite to the transport direction of the roller conveyor. After traveling in the same direction as the transport direction, the tip of the tread extruded vertically downward is turned over, and the belt conveyer section provided with a belt for guiding and guiding the tread to the roller conveyer section is formed by the roller Arranged freely on and off the conveyor,
Further, there is provided a pressing / folding member for pressing the folded tip portion of the tread to overlap the tread.

[0010]

The tip of the tread extruded downward in the vertical direction is received by the belt of the belt conveyer section. At this time, the belt travels in a direction opposite to the conveying direction of the roller conveyer section, and then the belt is moved. It travels in the same direction as the transport direction, and the tip of the tread is folded back.

The folded tip is pressed by a pressing / folding member and overlapped, and in this state, the tread is transported from the belt conveyor to the roller conveyor.

That is, in the roller conveyer section, the tread is conveyed in a state where the front end portion is folded, the rigidity of the front end portion is increased, and the front end portion hangs between the rollers of the roller conveyor portion. Without intrusion.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 1 shows a tread conveyor device according to the present invention. The tread conveyor device extrudes vertically downward from an extruder (not shown) as shown in FIG. To a predetermined site,
The vehicle includes a roller conveyor section 2 and a belt conveyor section 3 disposed upstream of the roller conveyor section 2.

The belt conveyor 3 has a pair of end rollers 4 and 5 disposed at the same height,
The belt includes a pair of intermediate rollers disposed between the rollers, and a belt wound around the rollers.
The one intermediate roller 6 is arranged at substantially the same height as the end rollers 4 and 5, and the other intermediate roller 7 is arranged below the one intermediate roller 6.

The rollers 4 are arranged on the base 9 along the linear guide 10 along the roller conveyor 2 as shown by arrows A and B.
The slide body 11 that slides in the direction to approach and separate
Provided.

The slide body 11 is provided with driving means 12 for driving the rollers 4 of the belt conveyor section 3. The driving means 12 includes two motors for forward rotation and reverse rotation, a clutch for switching the rotation direction of the motor,
An interlocking connection member for transmitting the rotational force of the motor to the rollers 4 is provided.

The intermediate roller 7 is provided with an adjusting mechanism 13 such as a cylinder mechanism for adjusting the tension of the belt 8 by reciprocating the roller 7 in the longitudinal direction of the slide body 11.

The linear guide 10 has a rail portion 14 disposed on the lower surface of the slide body 11 along the longitudinal direction thereof,
And a fitting portion 15 disposed on the upper surface of the base 9. The rail portion 14 is slidably fitted to the fitting portion 15.

A driving means 16 for driving the slide body 11 as indicated by arrows A and B is provided on the slide body 11.
Is attached. The driving means 16 is composed of, for example, a cylinder mechanism.

Accordingly, when the slide body 11 slides as indicated by arrows A and B, the belt conveyor 3 approaches and separates from the roller conveyor 2.

The roller conveyor section 2 has a plurality of rollers 17... The rollers 17 rotate in the normal rotation direction (ie, the direction of the arrow X) to convey the tread 1 in the direction of the arrow C.

On the upstream side of the roller conveyor 2,
A pressing and folding member 18 for pressing the tip 1a of the tread 1 is provided. The pressing / folding member 18 includes a pressing roller 19, an arm 20 for holding the pressing roller 19, and a cylinder 21 for swinging the arm 20.

That is, the main body 21a of the cylinder 21 is
22 and the piston rod 21b of this cylinder 21
The base end of the arm 20 is attached to the arm 20, and the pressing roller 19 is rotatably supported at the distal end of the arm 20.

Accordingly, when the piston rod 21b reciprocates in the vertical direction, the arm 20 moves around the axis 23 with the arrows D and E.
And the press roller 19 swings as shown by arrows D and E.

Next, a method for transporting the tread 1 by the roller conveyor unit 2 using the tread conveyor device configured as described above will be described.

First, as shown in FIG. 2A, the belt conveyor 3 is separated from the roller conveyor 2 in a standby state, and as shown in FIG. It is made to approach the roller conveyor 2.

At this time, the rollers 4 are rotated in the direction opposite to the direction of rotation of the rollers 17 of the roller conveyor 2 as shown by arrow Y. That is, the belt 8 moves in the direction indicated by the arrow F which is opposite to the direction of conveyance in the direction indicated by the arrow C.

In this state, the tip 25 of the tread 1 extruded vertically downward as shown by the arrow Z comes into contact with the upper surface of the belt 8. If it abuts, the belt 8 will be like the arrow F,
Since it is running in a direction opposite to the transport direction of the roller conveyor 2, as shown in FIG.
25 to its vicinity travels along the belt 8 in the direction of arrow F.

Next, when the leading end 25 of the tread 1 passes through the position indicated by the line L as shown in a predetermined position (for example, (d) in FIG. 2), the rollers 4 are rotated in the direction of arrow X,
As a result, the belt 8 is caused to travel in the direction of arrow G, which is the same direction as the above-described transport direction.

The tip 25 of the tread 1 has a line L
For example, a photoelectric switch may be provided in the vicinity of the line L and detected by the photoelectric switch.

From the state shown in FIG.
Travels in the direction of arrow G, the tread 1 is sequentially pushed downward in the vertical direction, and as shown in FIG.
Its tip 1a is folded back.

The folded portion is a pressing / folding member.
When approaching to the vicinity of 18, as shown in FIG. 3 (b), the pressing roller 19 descends (oscillates), presses the folded part, and overlaps the tip part 1a to form the folded part. And

Thereafter, the belt 8 travels in the same direction as the conveying direction of the roller conveyor 2 as shown by the arrow G, and
The pressing roller 19 presses the tread 1, and the tread 1 is transported by the roller conveyor 2 in the direction of arrow C.

In this case, as shown in FIG.
Since the front end portion 1a is folded, the rigidity is increased, and when the sheet is conveyed in the direction of the arrow C, it is smoothly conveyed without falling between the rollers 17, 17.

Also, as shown in FIG. 3C, after the tread 1 has sufficiently moved onto the roller conveyor 2, that is, after the tip 1a has been conveyed by the roller conveyor 2. After a certain period of time, the belt conveyor 3 is returned to a standby state in which it is separated from the roller conveyor 2 as shown in FIG. 3D, and the running of the belt 8 is stopped.

Accordingly, the tread 1 extruded downward in the vertical direction is reliably conveyed to a predetermined position by the roller conveyer unit 2 in a state where the tip 1a is folded.

The present invention is not limited to the above-described embodiment, and the design can be freely changed without departing from the gist of the present invention. For example, a pressing roller 19 is used as the pressing / folding member 18 in the illustrated example. However, instead of the pressing roller 19, a ball-shaped or spatula-shaped one that can press the folded front end portion 1a may be used.

The timing of pressing the distal end portion 1a by the pressing / folding member 18 may be determined by a timer or the like, or may be determined by a sensor or the like for detecting the distal end portion 1a.

[0040]

Since the present invention is configured as described above, the following effects can be obtained.

The tread 1 can be reliably transported to a predetermined position by the roller conveyer unit 2 in a state where the tip 1a is folded.

The tip 1a of the tread 1 can be folded without the operator directly touching the tread 1,
There is an advantage that it is safe for the operator and the operation is simplified.

The leading end 1a of the tread 1 to be conveyed is folded, so that the rigidity is increased, and even when the distance between the rollers of the roller conveyor section 2 is relatively large, the leading end 1a is located between the rollers. Don't be depressed. Therefore,
As the roller conveyor 2, a roller having a relatively large roller interval can be employed, which is advantageous in terms of cost and maintenance.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is an operation explanatory view.

FIG. 3 is an operation explanatory view.

FIG. 4 is a simplified diagram showing a transport state of a roller conveyor unit.

FIG. 5 is a simplified view showing a state in which a tread is transported without folding its tip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tread 1a Tip part 2 Roller conveyor part 3 Belt conveyor part 8 Belt 18 Pressing folding member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 45/12 B29D 30/26

Claims (1)

(57) [Claims] 1. After traveling in a direction opposite to the conveying direction of the roller conveyor section 2 to the upstream side of the roller conveyor section 2 for conveying the tread 1, the traveling section travels in the same direction as the conveying direction and is extruded vertically downward. A belt conveyer section 3 provided with a belt 8 for guiding the tread 1 to the roller conveyer section 2 by folding back the leading end 1a of the tread 1 that has been provided, so as to be able to approach and separate from the roller conveyer section 2; And a pressing / folding member (18) for pressing the folded tip portion (1a) of the tread (1) to overlap the tread (1).