JPH09220772A - Palette cleaning apparatus in green tire feed apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance product accuracy by preventing the adhesion of paint refuse or waste refuse to the surface of a green tire and to enhance workability and productivity by entirely automatically performing cleaning. SOLUTION: Guide rollers are arranged behind the insertion position of a storage conveyor at a predetermined interval so as to leave a predetermined interval with respect to one side part in the longitudinal direction of a palette supply conveyor. A rotary drive mechanism 22 rotating the palette P on the palette supply conveyor at a constant speed and a palette cleaning device 25 equipped with a liftable brush roll 23 cleaning the surface of the palette P and the dust collector 24 provided to the side part of the brush roll 23 to suck waste refuse released from the surface of the palette P to remove the same to the outside are provided to the other side part in the longitudinal direction of the palette supply conveyor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet cleaning device in a green tire conveying device, and more specifically, for example, a molded green tire molded by a molding machine is placed on a pallet and stored in a storage zone. The present invention relates to a pallet cleaning device that cleans the surface of a pallet in advance so that paint or the like that adheres to the surface of the pallet during transportation to a vulcanizer does not adhere to the surface of the green tire.

[0002]

2. Description of the Related Art Conventionally, when a green tire (unvulcanized tire) molded by a tire molding machine is transferred and stored on a storage conveyor (storage conveyor) in a storage zone (storage area), the tire is molded by the tire molding machine. The molded green tires are transported by the unloading conveyor and transferred onto the transport carriage, and the transport truck with the green tires transferred to the storage conveyor position in the storage zone designated by the transport carriage. After transportation, the green tires are transferred and stored on the designated storage conveyor.

At the request of the vulcanizer, the green tires stored on the storage conveyor in the storage zone are transferred to the carrier and transported to the vicinity of the vulcanizer. The green tire loading device is used to lift and load the vulcanizer.

[0004]

However, in the conventional method as described above, since the molded green tire is directly placed on the storage conveyor and stored,
Especially in the case of large green tires,
There is a problem that the green tire is deformed, and the tire quality after vulcanization molding is adversely affected.

[0006] Further, when carrying the green tire, it has been proposed to carry the green tire by placing it on a pallet in order to facilitate the carrying of the green tire. However, when the green tires are placed on the pallet and conveyed to the vulcanizer side, a step of applying a release coating to prevent the green tires from adhering to the bladder or the like is performed in the preceding step.

In this coating process of the paint, it is common to apply the paint while the green tire is still placed on the pallet. Therefore, if the size of the pallet and the green tire do not match, the paint will not be on the pallet. , In particular, it may adhere to the inner part of the green tire. In addition, the pallet is collected after transportation and used to mount the green tire again.If the paint adheres to the surface of the pallet as described above, the paint will adhere to the surface of the green tire. However, the quality of the molded tire may be impaired. For this reason, conventionally, when paint or the like is attached to the surface of the pallet and it is dirty, the carrier of the green tire determines the degree of the dirt and carries out the work of cleaning with a cleaning machine or the like.

However, in reality, cleaning is not performed unless the surface of the pallet is considerably contaminated, so that paint dust and the like may adhere to the surface of the green tire, impairing the quality and cleaning the pallet. Since all the work was done manually by the workers, there was a problem that the work efficiency was extremely poor. The present invention has been devised in view of such conventional problems, and when carrying a particularly large green tire molded by a tire molding machine, prevents deformation of the green tire and facilitates the carrying work. By automatically cleaning the surface of the pallet used for cleaning in the previous step of placing the green tire on the pallet, the surface of the pallet is always in a clean state. Pallet cleaning device in a green tire transfer device that can improve workability and productivity because it can improve product accuracy by removing paint dust and dirt from the product and automatically clean everything. It is intended to provide.

[0008]

In order to achieve the above object, the present invention places a green tire molded by a tire molding machine on a transfer carriage for transporting the green tire at the insertion position of the pallet insertion device. A transporting device for a green tire that supplies a pallet between a green tire and a transporting carriage in a suspended state, wherein the pallet inserting device is in the vicinity of the unloading side of the pallet storage conveyor connected to the pallet inserting position, A rotation drive mechanism that rotates the pallet on the conveyor at a constant speed, a brush roll that can move up and down to clean the surface of the pallet, and dust that has peeled off from the pallet surface is sucked to the outside of the brush roll to the outside. The gist of the present invention is to provide a dust collecting device.

The present invention is configured as described above, and the green tire molded by the tire molding machine is conveyed by the carry-out conveyor and transferred onto the transfer carriage for transportation, and the transfer truck for transportation on which the green tire is transferred. , After transferring to the pallet insertion position, by automatically cleaning the surface of the pallet with a pallet cleaning device in the pre-process of inserting the pallet between the green tire and the transfer carriage while lifting the green tire, The surface of the pallet supplied on the transfer trolley for transportation is always in a clean state, and as a result, paint dust, dirt, etc. do not adhere to the surface of the green tire, and product accuracy can be improved,
Since all are automatically cleaned, workability and productivity can be improved.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view showing a schematic configuration of a transporting apparatus for a green tire W according to the present invention, in which 1 is a tire forming machine installed in parallel, 2 is a green tire W placed on a pallet P. A plurality of vulcanizers are indicated by storage zones 4 for storing on a plurality of storage conveyors 3 arranged in parallel.

Between the tire molding machine 1 and the storage conveyor 3, a carry-out conveyor 5 for successively carrying out the green tires W molded by the tire molding machine 1, and a green tire W carried out by the carry-out conveyor 5. A pallet feeder 6 installed on the side of the storage conveyor 3 and a movable transfer carriage 7 for transferring to the position of each storage conveyor 3 are installed.

The storage conveyor 3 and the vulcanizer 4 are also provided.
Of the vulcanizer 4 by lifting the green tire W near
Between the pallet peeling device 8 installed in the lower part of the green tire loading device 40 (vertical loader) to be loaded inside, a paint coating device 9 for coating the inner surface of the green tire W, and the storage conveyor 3 A movable carriage 10 is installed to take out the green tire, transfer it, and convey it to the position of the pallet peeling device 8.

The transfer carriage 7 has a plurality of storage conveyors 3 and a pallet feeder 6 as shown in FIG.
As shown in FIG. 5, the transport carriage 7 reciprocates along a guide rail 11 laid between the wheel and a wheel which is rotatably driven under a carriage frame 12 by a traveling motor 13. A shaft 14 is suspended horizontally via bearings 15, and wheels 16 that are rotationally driven along the guide rails 11 are attached to both ends of the wheel shaft 14.

A plurality of drive rollers 17 for loading and unloading tires are horizontally arranged at predetermined intervals above the carriage frame 12, and the drive rollers 17 are
It is configured to be rotationally driven by a drive motor 18 provided on the carriage frame 12. The pallet supply device 6 installed on the side of the storage conveyor 3 is provided with a pallet supply conveyor 19 that sequentially conveys a plurality of recovered pallets P to the insertion position 6a. In the vicinity of the insertion position 6a, two openable and closable supply arms 20 are provided for supplying the pallets P one by one onto the transfer carriage 7 in a centered state. Rotatable rollers 20a and 20b are attached to the front and rear ends of the supply arm 20, and the supply arm 20 is opened and closed by an opening and closing drive device (not shown) to transfer the pallets P one by one. It is supplied onto the dolly 7.

Further, the insertion position 6 of the storage conveyor 3
As shown in FIGS. 1 and 2, guide rollers 21 are installed at predetermined intervals on one side in the longitudinal direction of the pallet supply conveyor 19 at the rear of a. On the other side of the conveyor 19 in the longitudinal direction,
A rotary drive mechanism 22 that rotates the pallet P on the pallet supply conveyor 19 at a constant speed, a brush roll 23 that can move up and down to clean the surface of the pallet P, and a side portion of the brush roll 23 that is separated from the surface of the pallet P. There is provided a pallet cleaning device 25 including a dust collector 24 that sucks the dust and removes it to the outside.

That is, the pallet P of the pallet cleaning device 25
In the rotation drive mechanism 22 for rotating the pallet P at a constant speed, a rubber roll 26 for rotatably driving the pallet P by being pressed against the outer periphery of the pallet P is disposed on the other side portion on which the pallet P is conveyed. Pallet supply conveyor 19
The drive motor 2 attached to the tip of the rod 28a of the front-rear cylinder 28 at the base end of the frame 27 that projects upward.
It is configured to be rotationally driven via 9 and to be moved back and forth with respect to the outer circumference of the pallet P by a front and rear cylinder 28.

At the tip of the frame 27, the brush roll 23 that moves up and down with respect to the surface of the pallet P via a lifting cylinder 30 is attached. The brush roll 23 is rotationally driven by a drive motor 31. Is configured to. Also, on the side of the brush roll 23,
A dust collecting port 32 of a dust collecting device 24 for sucking and removing the dust and dirt of the paint separated from the surface of the pallet P to the outside is attached, and the dust collecting port 32 is provided with a pallet supply conveyor via a dust collecting pipe 33. It is connected to a dust collecting motor 34 installed outside the device 19.

Further, the insertion position 6a of the pallet feeding device 6
A green tire lifting device 35 for lifting the green tire W when the pallet P is supplied onto the transfer carriage 7 is installed on the upper part of the green tire lifting device 3
5 grips the inner diameter portion of the green tire W with a plurality of (three in this embodiment) openable gripping claws 35a to raise the green tire W and supply the pallet P onto the transfer carriage 7. Then, the green tire W is hung and placed on the pallet P.

The operation timing of the green tire lifting device 35 is as follows: the insertion position 6 of the pallet feeding device 6
When the transfer carriage 7 moves to a and stops, a detector (not shown) (for example, a limit switch or the like) is activated to cause an elevator drive device (not shown) of the green tire elevator 35 to be moved up or down. Is configured. It should be noted that a detector (not shown) and a drive device are connected via a control device so that the lifting operation of the green tire W and the supplying operation of the pallet P are all automatically performed.

The paint applying device 9 for applying paint to the inner surface of the green tire W transfers the green tire W taken out from the storage conveyor 3 on the pallet P onto the carriage 10. And the carriage 10
To the position of the paint applicator 9 and move the paint tank 9
The paint is sucked from a through the hose 9b, and the paint is applied to the inner wall surface of the green tire W by the injection nozzle 9c.

Further, as shown in FIGS. 9 and 10, the pallet peeling device 8 installed in the vicinity of each vulcanizer 4 has a substantially U-shaped plan view having a recess 36 into which the carriage 10 can enter. A plurality of freely rotatable lateral guide rollers 38a arranged so that the peripheral surface of the green tire W placed on the carrier 10 via the pallet P is abutted on the frame 37 for centering. A centering mechanism 39 provided with a vertical guide roller 38b is provided, and when the green tire W is lifted by a green tire loading device 40 (vertical loader), a pallet P is attached to the lower part of the centering mechanism 39. A stopper plate 41 for peeling off from W is provided.

That is, as shown in FIGS. 11 and 12, the carrier 10 on which the green tires W are placed via the pallet P is the recess 36 of the frame 37 of the pallet peeling device 8.
When the green tire W is invaded, the outer peripheral surface of the green tire W placed on the pallet P comes into contact with the lateral guide rollers 38a and the vertical guide rollers 38b of the centering mechanism 39 to center the green tire W.

At this time, the flange portion P of the pallet P is
The a is located on the lower side of the stopper plate 41 protruding inward from the frame 37. Therefore, when the green tire W placed on the trolley 10 via the pallet P is lifted by gripping the inner diameter of the green tire W with the plurality of gripping claws 42 of the green tire loading device 40, the green tire W comes into close contact with the pallet P. Had a green tire W
Is lifted together with the pallet P, but the flange portion Pa of the pallet P contacts the stopper plate 41, so that the green tire W is lifted by being separated from the surface of the pallet P.

The pallet P from which the green tires W have been removed is transferred to the recovery position of the pallet P together with the carrier 10, and the pallet P is transferred and stocked on the pallet supply conveyor 19. Next, a method of transporting the green tire W will be described. First, as shown in FIGS. 1 and 5, the green tire W molded by the tire molding machine 1 is transferred to the carry-out conveyor 5, and the green tire W is carried by the carry-out conveyor 5 and is put in standby in advance. The drive roller 17 is driven and transferred onto the drive roller 17 of the transport carriage 7.

Next, as shown in FIGS. 1 and 6, the transfer carriage 7 on which the green tires W are transferred is transferred to the insertion position 6a of the pallet supply device 6 along the guide rail 11 as shown in FIGS. As shown in FIG. 7, the green tire elevating device 35 lifts the green tire W, and the pallet P is supplied and inserted between the green tire W and the transport carriage 7 to place the pallet P on the transport carriage 7. The green tire W is placed via the above.

Here, supply of pallet P and pallet P
The surface cleaning method will be described. The pallet P is sequentially conveyed to the insertion position 6a of the pallet P while being placed on the pallet supply conveyor 19 as shown in FIG. In the vicinity of the insertion position 6a of the pallet P, the pallet P is
In order to clean the paint adhering to the surface of the pallet P, the pallet cleaning device 25 cleans the surface of the pallet P immediately before the pallet P which is supplied onto the transfer carriage 7.

That is, as shown in FIGS. 2 to 4, on the pallet supply conveyor 19 which is in contact with the roller 20b on the rear end side of the supply arm 20, one unit before being supplied onto the transfer carriage 7. The side surface of the pallet P is pressed against the rotatable guide roller 21 provided on the pallet supply conveyor 19 through the rubber roll 26 attached to the tip of the rod 28 of the front and rear cylinders 28 of the pallet cleaning device 25, and in this state. When the rubber roll 26 is rotated via the drive motor 29, the pallet P rotates at a constant speed due to the frictional force of the rubber roll 26.

From this state, the brush roll 23, which can be raised and lowered, is lowered through the raising and lowering cylinder 30, and the tip of the brush roll 23 is brought into sliding contact with the surface of the pallet P.
Further, when the brush roll 23 is rotationally driven via the drive motor 31, the paint and the like adhering to the surface of the pallet P is peeled off by the brush roll 23. Then, when the dust collecting motor 34 is driven at the same time, paint dust, dust, and the like separated from the surface of the pallet P are sequentially sucked through the dust collecting port 32 and sucked through the dust collecting pipe 33 to be removed to the outside. It

As a result, the surface of the pallet P to be sent next is cleaned and becomes in a clean state, and the cleaned pallet P is cleaned.
Is supplied to and held by two supply arms 20 that can be opened and closed, and the pallet P held by the supply arms 20 is held.
Are in a standby state until they are supplied onto the transfer carriage 7. Then, as described above, when the transfer carriage 7 is transferred to the insertion position 6a of the pallet supply device 6 and the green tire W is lifted by the green tire lifting device 35, the pallet supply conveyor 19 drives the The pallet P is sent to a predetermined position on the transfer carriage 7, and the green tire W is placed on the transfer carriage 7 via the pallet P by lowering the green tire W.

Next, the green tire W placed on the transfer carriage 7 via the pallet P is transferred by the transfer carriage 7 to the position of the storage conveyor 3 in the designated storage zone, and thereafter, As shown in FIG. 8, the green tire W placed on the pallet P is driven on the designated storage conveyor 3 by driving the driving roller 17 of the transfer carriage 7 and the designated storage conveyor 3, respectively. Are transferred and stored together with the pallet P.

Green tires W stored on the storage conveyors 3 in the respective storage zones
Is moved to the take-out position of the designated storage conveyor 3 by the carrier 10 according to the request from the vulcanizer 4,
The pallet P is transferred onto the carrier 10. The green tire W transferred onto the carrier 10 moves to the position of the paint application device 9 that applies the paint to the inner surface of the green tire W, as shown in FIG. 1, until the designated vulcanizer 4. To do. In this paint application device 9, the paint as a release paint is applied to the inner surface of the green tire W placed on the pallet P in order to prevent adhesion of a bladder or the like particularly in the vulcanization process.

The green tire W to which the coating material has been applied by the coating material application device 9 is conveyed by the carrier 10 to the position of the pallet peeling device 8 installed near the vulcanizer 4.
In the pallet peeling device 8, FIG. 11, FIG. 12 and FIG.
As shown in (a) to (d), the centering of the green tire W put into the vulcanizer 4 and the peeling of the pallet P are performed, and the following operations are performed.

That is, when the carrier 10 on which the green tires W are mounted via the pallet P enters the recess 36 of the frame 37 of the pallet peeling device 8, the outer periphery of the green tire W mounted on the pallet P is struck. The surfaces are the horizontal guide roller 38a of the centering mechanism 39 and the vertical guide roller 3
The centering of the green tire W is performed by contacting with 8b (see FIG. 13A).

The position of the center ring is such that a plurality of gripping claws 42 of the green tire loading device 40 standing by above are held.
And the flange portion Pa of the pallet P at this time is positioned on the lower side of the stopper plate 41 protruding inward from the frame 37.
From such a state, as shown in FIGS. 13B, 13C, and 13D, the green tire W placed on the carrier 10 via the pallet P is attached to the green tire loading device 4
When the inner diameter portion is gripped and lifted by the plurality of gripping claws 42 of 0, the green tire W that has been in close contact with the pallet P is temporarily lifted together with the pallet P, but the flange portion Pa of the pallet P has a stopper plate. Since it abuts against 41, the green tire W is separated from the surface of the pallet P and lifted.

Then, the green tire W lifted by the green tire loading device 40 is conveyed to the designated vulcanizer 4 and loaded, and the pallet P from which the green tire W has been removed is pallet together with the carrier 10. P
The pallet P is transferred to the pallet supply conveyor 19 and stocked. Through the above steps, the green tire W molded by the tire molding machine 1 is stored on the storage conveyor 3 in the storage zone 2 together with the pallet P, and the green tire W together with the pallet P is requested by the vulcanizer 4. Since the green tire W is conveyed to the vulcanizer 4, the green tire W can be always vulcanized and molded with high accuracy without being deformed during the process.

[0036]

According to the present invention, the green tire formed by the tire forming machine as described above is placed on the transfer carriage for transportation, and the green tire is lifted at the insertion position of the pallet inserting device. A transporting device for green tires that supplies a pallet between a pallet and a transporting carriage for transporting, wherein the pallet inserting device holds a pallet on the conveyor in the vicinity of the unloading side of the pallet storage conveyor connected to the pallet inserting position. A rotation drive mechanism that rotates at a speed of, a brush roll that can move up and down to clean the surface of the pallet, and a dust collector that suctions and removes dust separated from the surface of the pallet to the outside on the side of the brush roll. Since it is provided, when carrying a particularly large green tire molded by a tire molding machine, preventing deformation of the green tire, The surface of the pallet used for facilitating the feeding work is automatically cleaned in the previous step of placing the green tire on the pallet, and the surface of the pallet is always kept in a clean state. It is possible to improve the accuracy of the product by eliminating the residue of paint and dust on the surface and to automatically clean all the products, which can improve workability and productivity.

Further, the existing equipment can be installed without making a great change, and therefore, the equipment can be installed at a low cost, and the structure is simple, so that there is an effect that it can be manufactured at a low cost.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of a carrying device for a green tire W according to the present invention.

FIG. 2 is an enlarged front view of a pallet cleaning device.

FIG. 3 is a plan view of a pallet cleaning device when cleaning of the pallet is started.

FIG. 4 is a plan view of a pallet cleaning device when cleaning a pallet.

FIG. 5 is an explanatory diagram showing a state in which the green tires conveyed by the carry-out conveyor are transferred and mounted on the conveyance carriage for conveyance.

FIG. 6 is an explanatory diagram showing a process of supplying a pallet between a green tire placed on a transporting carriage and a transporting carriage.

FIG. 7 is an explanatory diagram showing a state in which a pallet is supplied onto a transfer carriage for transportation with a green tire being lifted.

FIG. 8 is an explanatory diagram showing a process of transferring a green tire, which is placed on a transfer carriage for transportation via a pallet, onto a storage conveyor together with the pallet.

FIG. 9 is a plan view of a pallet peeling device.

FIG. 10 is a front view of the pallet peeling device of FIG.

FIG. 11 is a plan view showing a state in which a carrier truck on which green tires are placed is inserted into a concave portion of a pallet peeling device via a pallet.

FIG. 12 is a front view of FIG. 11;

13 (a) to 13 (d) are operation explanatory views showing a process of lifting a green tire by separating it from a pallet by a green tire loading device from above a carrier truck inserted into a concave portion of the pallet peeling device.

[Explanation of symbols]

1 Tire Forming Machine 2 Storage Zone 3 Storage Conveyor 4 Vulcanizing Machine 5 Carrying Out Conveyor 6 Pallet Supply Device 6a Insertion Position 7 Transfer Cart for Transport 8 Pallet Stripping Device 9 Paint Coating Device 10 Carriage Cart 19 Pallet Supply Conveyor 20 Supply Arm 21 Guide Roller 22 rotation drive mechanism 23 brush roll 24 dust collector 25 pallet cleaning device 26 rubber roll 27 frames 28a, 28b front and rear cylinders 29 drive motor 30 lifting cylinder 31 drive motor W green tire P pallet

Claims (1)

[Claims] 1. A green tire molded by a tire molding machine is placed on a transfer carriage for transportation, and the green tire is lifted at an insertion position of a pallet insertion device between the green tire and the transportation carriage. A transporting device for green tires for supplying pallets to a pallet inserting device, wherein the pallet inserting device rotates a pallet on the conveyor at a constant speed in the vicinity of the unloading side of the pallet storage conveyor connected to the pallet inserting position. And a brush roll capable of moving up and down for cleaning the surface of the pallet, and a dust collecting device for sucking and removing the dust separated from the surface of the pallet to the outside on the side of the brush roll. Pallet cleaning device for tire transport device.