JP2003220610A - Apparatus for removing bead wire of waste tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for removing a bead wire wherein an operation for removing the bead wire from a waste tire is efficient and a structure is simple, and excellent in durability. <P>SOLUTION: An apparatus for removing the bead wire of the waste tire is composed of a means for extracting a wire comprising a tire holding means being the tire holding means containing a bottom plate and a side plate which support the waste tire and having a through hole open to the side plate within a range over from an aperture part for a rim of the held waste tire to the side surface, a hook main body which is provided to a side of the tire holding means and has a bent hook part capable of being engaged with the bead of the waste tire by being inserted into the aperture part for a wheel rim of the waste tire by being inserted through the through hole, a reciprocative drive means for extracting the bead wire from the bead by retreating the hook part engaged with the bead by advancing and retreating the hook main body, and a positioning means for carrying out relative positioning of the hook part and the bead of the waste tire so that the hook can be engaged with the bead wire by inserting the hook main body into the aperture part for the wheel rim of the waste tire. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing a bead wire from a waste tire used for an automobile and discarded, and more particularly to an apparatus for removing a bead wire before crushing the tire by a crusher.

[0002]

2. Description of the Related Art A large amount of used automobile rubber tires are discharged from automobile maintenance factories and scrap factories. Since most automobile tires contain rubber, they are cut into pieces and used as solid fuel. , Has been regenerated into synthetic petroleum by the cracking process. In these processing steps, the rubber tire is made into chips by a crusher or a cutter.

[0003] In automobile tires, there is a bead of an inner reinforcing portion for externally fitting a rubber tire to a rim of a wheel, which is fixed to the rim of the wheel by contacting the rim of the wheel. Is embedded around the opening for the wheel rim to firmly secure the connection between the tire and the wheel rim.

Since the bead wire is usually made of steel wire, it is difficult to cut the steel wire in advance to crush the tire, which makes the crushing process difficult. In particular, when the bead wire was left on the tire before crushing, the crushing blade was damaged by the steel wire, the crushing blade was consumed in a large amount, its life was short, and the crushing cost was high. In addition, although the cut wire remains on the crushed tire rubber chip, if the crushing blade crushes in a worn state, due to poor cutting, a wireless steel wire jumps out greatly from the rubber chip,
In some cases, chips may cause inconvenience such as inability to be supplied due to a hanging phenomenon or blockage in a constant quantity feeder or the like in a subsequent process.

In view of the above problems, the present invention provides a machine for automatically removing a bead wire from a waste tire prior to tire crushing or cutting. In particular, the present invention provides a bead wire removing device which has an extremely simple structure and has a high efficiency of wire removing operation of a machine.

[0006]

A bead wire removing device for a waste tire according to the present invention comprises a tire holding means for supporting a waste tire in an upright state, and a hook portion for engaging a bead wire embedded in a bead with the hook portion. It includes wire withdrawing means for withdrawing from the bead and positioning means for positioning the hook portion such that the hook portion is inserted into the opening of the tire and the hook portion engages the bead.

Specifically, in the device of the present invention, the tire holding means includes a bottom plate for supporting the tread of the waste tire and a side plate for supporting the sidewall, and the side plate has an opening for the wheel rim of the held waste tire. A through hole is formed in the range from the part to the sidewall. The wire pulling-out means is provided on the side of the tire holding means, has a bent hook portion that can be inserted into the through hole and inserted into the wheel rim opening of the waste tire, and that can engage with the bead of the waste tire. And a reciprocating drive means for advancing and retracting the hook body to retract the hook portion engaged with the bead and pull out the bead wire from the bead. Then, the positioning means inserts the hook main body into the opening of the waste tire and positions the hook relative to the bead of the waste tire so that the hook can be engaged with the bead.

In the bead wire removing apparatus of the present invention, the tire holding means supports the tire in a rollable state by the bottom plate and the side plate, and the wire drawing means is arranged on the side of the tire holding means. A hook body having a hook portion and a reciprocating drive means for moving the hook portion forward and backward. By the operation of the reciprocating drive means, the hook portion has a bent shape, and when the forward movement is made, the side plate penetrates. It can be inserted through the hole into the wheel rim opening of the waste tire and can engage with the bead of the waste tire. In this state, when the reciprocating drive means retracts the hook part, the hook part is Although the bead wire inside is pulled out through the through hole, the side plate around the through hole supports the sidewall of the tire, that is, the tire side surface, so that the bead is pulled by the pulled wire. Kichigira is to only wire is withdrawn.

Since the through hole of the side plate is formed in a range extending from the wheel rim opening of the retained waste tire to the side wall, when the hook portion advances, the hook portion passes through the through hole and the bead is removed. Beyond, into the wheel rim opening, when retracting, the hook portion is positioned from the back of the bead to a position where it can engage the wire, and when withdrawn, the hook portion can exit through the slot. Positioning means are provided for this positioning between the opening of the hook portion and the engagement position. In this way, the movement of the hook portion easily removes and separates the bead wire embedded in the bead from the waste tire.

[0010]

The side plates of the tire holding means can be arranged on only one or both sides of the tire with respect to the waste tire to be supported. Preferably, side plates are arranged on both sides of the tire, and the waste tire is held in a rollably erected state between the side plates. The wire pulling-out means can be arranged outside of the side plates corresponding to the side plates. In this way, the bead wires on both sides of the tire can be pulled out at substantially the same time, which improves work efficiency.

The through hole provided in the side plate may have a rectangular shape or a circular shape as long as it extends from the wheel rim opening of the retained waste tire to the sidewall, but normally, the hook portion or the hook body is formed. It is preferable to form a narrow slot shape having a width that allows the wire to be inserted and with which the hook portion is engaged and pulled out, and a length that allows vertical position adjustment. In particular, if the slot is opened vertically, the hook portion can be arranged so as to bend downward, and the bent hook portion can insert the slot.

By arranging the slot as the through hole in the longitudinal direction to be long, the positioning means relatively moves the hook portion or the tire holding means in the vertical direction to easily position the hook portion for engagement with the wire. To The hook part is
Although it can be bent upward, a shape bent downward can be preferably used. The hook portion bent downward can be easily engaged with the bead wire in the bead, and after the wire after being pulled out comes out from the slot, it can be easily released from the hook portion and dropped.

In particular, the vertical slot is preferably formed in the side plate with a minimum width that allows the hook body to pull out the bead wire, and when the hook portion of the hook body engages with the bead and pulls it out. At the same time, the shearing action of forming the first cut into the bead is enhanced, and the smooth tearing action of the bead and the pulling action of the wire are continued.

The wire drawing means is provided on the side of the tire holding means, and in one mode, the hook body is fixed to the reciprocating drive means, and the bent hook portion is fixed to the tip of the hook body. As the reciprocating drive means, a hydraulic cylinder, a compressed air cylinder, an electric rack that moves back and forth, or the like can be used, and each has a force and a stroke required to move the hook body forward and backward and pull the wire out of the bead engaged with the hook portion. Any push-pull means may be used. For this purpose, for example, a hydraulic cylinder is preferably used. A rear part of the hook main body is fixed to the reciprocating drive means described above, and a rod-shaped member having a hook part at its tip can be used.

The positioning means positions the hook portion inserted in the opening for the wheel rim on the bead to facilitate the engagement, and the tire holding means can be directly connected to the tire holding means or via the tire conveying means, or the hook body can be An elevating drive means for elevating and lowering is used. Such lifting drive means, in particular,
When a vertically elongated slot is applied to the through hole of the side plate and the hook body has a hook portion whose tip is bent downward,
It can be preferably applied.

One aspect of the lifting drive means used for the positioning means is that the hook body is fixed in the vertical direction,
With a structure for directly moving the tire holding means up and down, the elevating drive means is provided between the lower position where the tire holding means is supplied with the waste tire and the upper position where the hook of the held tire is engaged with the hook. Move up and down with. In this case, the hook portion can be positioned on the bead when the tire holding means is raised while the hook portion is inserted and fixed in the wheel rim opening portion, and when the hook portion is retracted, the hook portion is moved to the bead wire. Can be engaged with. After pulling out the wire, when another tire is loaded and placed on the tire holding means, the lifting drive means lowers the tire holding means to insert the hook portion of the hook body into the opening portion of the tire. be able to. In another mode of the positioning means, the tire carrying means connected to the rear part of the tire holding means can be moved up and down by the lifting drive means, and the tire holding means can be moved up and down through the tire carrying means for positioning.

In still another mode, the lifting drive means may be arranged to drive the hook body up and down. The hook body is moved up and down between an upper position that can be inserted into the wheel rim opening of the waste tire held by the tire holding means and a lower position that engages with the bead of the waste tire. Such a lifting drive means raises the hook body when it is inserted into the opening, and lowers the hook body when pulling it out.
Position the hook.

As another means for the positioning means, means for suspending a waste tire can be used. As such a positioning means, there is a suspending means for engaging the wheel rim opening of the waste tire or gripping the sidewall to position the hook with respect to the bead. The suspending means may also serve as a carrying means for carrying in a subsequent step for crushing or temporarily storing the waste tire after removing the bead wire.

The above bead wire removing device may include a waste tire supply means connected to the rear of the tire holding means and having a slanted bottom surface and having a gate for supplying waste tires to the tire holding means one by one.

The bead wire removing device is preferably a device which can open and close the bottom plate up and down and tilts below the bottom plate to drop and discharge waste tires. The tire bead wire removing device is arranged above the tire crusher. Then, the waste tire from which the bead wire has been removed can be supplied to the tire crusher.

As described above, if the bead wire removing device is arranged above the crusher of the waste tire and the bottom plate is arranged above the inlet hopper of the crusher or the guide means to the inlet hopper, the bottom plate is tilted. There is an advantage that the waste tire after pulling out the bead wire can be put into the hopper.

[0022]

FIG. 1 shows a bead wire removing apparatus for a waste tire according to an embodiment of the present invention. This bead wire removing device 10
Includes a waste tire supply unit 7. The bead wire removing device 10 is provided with a crusher 110 immediately below the crusher 110. As shown in FIG. 2, the crusher crushes the waste tire 5 after removing the bead wire, and the crushed waste tire chips 59.
Are carried out by a belt conveyor 112 arranged immediately below the crusher.

In the bead wire removing apparatus 10, the waste tire supply unit 7 is provided immediately below the end of the belt conveyor 3 for transporting the waste tires in this example, and the waste tires 5 conveyed by the belt conveyor 3 are sequentially disposed. , Guide 7
The receiving plates 71, 71 that are set up so as to be rollable by a
The plurality of tires are temporarily held in an upright state in which they can be rolled in a groove formed between the receiving plates 71, 71. A gate 7b is provided between the waste tire supply unit 7 and the bead wire removing device 10 to temporarily stop the waste tire 5 at the gate 7b.
And the tires are rolled one by one according to the inclination height α of the bottom surface of the groove portion and supplied to the bead wire removing device 10.

The gate 7b of the waste tire supply section 7 comprises an air cylinder 7c which operates under the control of the control section, and a control plate 7d which is attached to the output shaft of the air cylinder 7c and controls the passage of the waste tire 5. The plate 7d is tilted upward, and the waste tires are passed through the gaps of the groove one by one.

1 and 2, a crusher 110 for roughly crushing the waste tire 5 from which the bead wire 55 has been removed is disposed below the bead wire removing device 10. The crusher 110 has an opening at the top. An inlet hopper 111 and an intake portion 50 for receiving a bead wire 55 separated from the tire are provided on both sides of the inlet hopper 111.

The bead wire removing device 10 of this embodiment
The tire holding means 11 is composed of a bottom plate 13, side plates 12 and 12 which are provided above the bottom plate 13 on both sides thereof, and a front plate 14 which is provided upright on the front part, and the above-mentioned waste tire supply connected to the rear part. The waste tires 5 are supplied from the portion 7 to the tire holding means 11 one by one. In this tire holding means, the side plates 12 and 12 on both sides support the tire moved from the tire supply unit 7 by the side walls 52, the bottom plate 13 supports the tire weight by the tread 51 of the tire, and the front plate 14 Prevents the tires from rolling, thereby holding and positioning the waste tire in a rollable state in a standing posture.

Vertical slots 15, 15 are formed in the side plates 12, 12 on both sides of the tire holding means as through holes for inserting hook bodies of wire pulling means, which will be described later.

The wire drawing means is the tire holding means 11
A pair of side plates 12, 12 are provided outside each of the side plates 12 so as to face each other. The hook main body 21 is provided with a hook portion which is inserted into the vertical slot 15 at the tip thereof, and the hook main body 21 is connected to the hook main body 21. And a reciprocating drive means 25 for pushing and moving back. The hook body 21 is rod-shaped, and the hook portion 22 at the tip of the hook body 21 is bent downward.

In this example, when the hook portion 22 can move in and out of the vertical slot 15 of the side plate by the reciprocation of the reciprocating drive means 25, and when the hook portion 22 penetrates the vertical slot 15, the hook portion 22 is inside the opening for the wheel rim of the tire. Can be engaged with the bead 54, and when the hook portion retracts and comes out of the vertical slot 15 of the side plate, it can be retracted to a position sufficiently separated from the side plate.

In this embodiment, as shown in FIG. 1, as a positioning means, an elevating drive means 31 for vertically moving the bottom plate 13 is provided, and the elevating drive means 31 moves the bottom plate 13 up and down. The upper tire 5 is vertically adjusted. In normal operation, the lifting drive means 31 slightly sets the tip of the hook portion to a lower position so that the hook portion of the hook body pushed by the reciprocating drive means 25 reaches inside the wheel rim opening of the tire. To be done.

In the apparatus of this embodiment, as described above, the wire pulling-out means performs the reciprocating driving means 25 for performing the inserting operation of each hook body 21 and the operation of tearing off the bead wire 55.
And the hook body 21 is inserted into the wheel rim opening 53 of the waste tire 5 and then the hook portion 2 of the hook body 21
2 includes raising and lowering drive means 31 for directly raising and lowering the waste tire 5 via the tire holding means 11 so that the waste tire 5 can be engaged with the bead 54. It is composed of a bottom plate tilting drive means 35 which is opened, dropped, and closed again.

The tire holding means 11 is vertically movably guided by a pair of rails 32 provided vertically on the base 9 of the present apparatus, and the rear end portion of the bottom plate 13 can be moved up and down by the lifting drive means 31. It is supported. Lifting drive means 31
I adopts an air cylinder, and by raising and lowering the rear end portion of the bottom plate 13 by the air cylinder, the waste tire is held at the same lower position as the waste tire supply unit 7 so that the waste tire is supplied and held. It is driven up and down between the upper position (the state shown in FIG. 3A) where the hook portion 22 can be engaged with the bead wire 55 of the waste tire. On the other hand, the front end portion of the tire holding means 11 is appropriately supported,
For example, it is supported by columns 19 and is used as a fulcrum for vertical movement on the rear end side of the bottom plate.

Instead of the air cylinder, the elevating and lowering drive means 31 may be a telescopic cylinder such as a hydraulic cylinder or an electric cylinder. Lifting drive means 31
A combination of a rack and a drive pinion is also adopted for.
Various sensors (not shown) such as limit switches and proximity switches are provided to check and control the vertical position of the bottom plate to control the expansion and contraction of the cylinder.

The bottom plate 13 is arranged above the inlet hopper 111 of the waste tire crusher 110 in this example.
The bottom plate 13 uses the hinge 13a as a fulcrum with respect to the frame F in order to drop the waste tire after the bead wire 55 is removed, and the front portion on the lower surface side of the bottom plate 13 serves as the tilt drive means 35 at the tip of the air cylinder shaft. The bottom plate can be tilted downward and returned upward as the tilting drive means is contracted and extended. The other end of the tilting drive means 35 is fixed to an appropriate fixing member. By reducing the tilting drive means 35, the bottom plate 13 is tilted downward, and the waste tire is dropped directly below or below the front, and the inlet hopper 111 of the crusher is used.
Can be charged to.

With the bottom plate 13 closed, the waste tire 5 is slightly inclined to the front side so that the waste tire 5 is brought into contact with the front plate 14 to be stabilized. As the tilting drive means 35 of the bottom plate 13, an air cylinder is used as shown in the figure, but instead of this, a telescopic cylinder such as a hydraulic cylinder or an electric cylinder can be used, and in addition, a rotating cylinder can also be used. . As the other tilting drive means 35, the bottom plate 13 is supported from below by an advancing / retreating operation claw, the claw is retracted, the weight of the waste tire is released and dropped, and the spring is closed to advance the claw to support it again. It is possible to adopt a method that allows it. Bead wire 55
The waste tire after the removal of the waste hopper 11 of the crusher 101
When the distance from the tire holding means to the popper is large, the feeding to the No. 1 can be performed via a conveying means such as a conveyor.

Regarding the relationship between the hook body 21 and the slot 15, the vertical slot 15 of each side plate 12 extends vertically from the wheel rim opening 53 of the waste tire 5 held by the tire holding portion 11 to the lower bead 54. The slot 15 is formed. The width of the vertical slot 15 is set so that the hook body 21 can pull out the bead wire 55.
2 strengthens the shearing action of engaging the bead wire 55 embedded in the bead 54 and forming the first cut in the bead 54 when pulling it out, and subsequently the bead wire 55 continues the smooth tearing action of the bead. It
The reciprocating drive means 25 of the hook main body 21 has an extension position where the hook portion 22 is completely inserted into the wheel rim opening 53 of the waste tire 5, and the bead wire 55 is torn off from the bead pull portion to be completely pulled out from the slot. The hook main body 21 is reciprocally driven in the stroke between the contracted position required for and. For this purpose, the reciprocating drive means 25 employs a powerful hydraulic cylinder fixed via a fixing plate 26 fixed to the base 9.

The confirmation and control of the position of the hook portion are similarly performed by various sensors such as a limit switch and a proximity switch. Further, a load sensor of the reciprocating driving means 25 may be provided, and the completion of the tearing can be detected by the load sensor because the bead wire 55 is detached from the bead 54 and the load of the reciprocating driving means 25 disappears.

Regarding the shape of the hook portion 22, the tip of the rod-shaped member of the hook body is bent downward at a substantially right angle.
The hook portion may be bent inward by about 45 degrees with respect to the perpendicular. Further, in order to improve the biting of the hook portion 22 into the bead wire 55 inside the bead 54, a taper portion which is slightly tapered inward may be provided. For example, as shown in FIG. Rectangular hook 2
2 is provided with a tapered surface 22a.

Regarding the operation of the bead wire removing device 10 for a waste tire having the above-mentioned structure, first open the gate 7b,
From the waste tire supply unit 7 to the tire holding means 11 the waste tire 5
Reciprocating driving means 2 for the left and right hook bodies 21
5 is extended to insert the hook portion 22 into the wheel rim opening portion 53 of the waste tire from the vertical slot 15. Next, the elevating and lowering drive means 31 is moved up to engage the hook portion 22 with the bead 54 as shown in FIG. 3A, and then the reciprocating drive means 25 is contracted to move the hook portion 22.
Is retracted and pulled out from the vertical slot 15. The operation of the hook portion at this time is, as shown in FIG. 4 (a), from the bead 54 to the bead wire 55 of the tire which is obstructed by the side plate.
When the bead wire 55 is completely pulled out from the vertical slot by engaging only the hook portion with the vertical slot 15 and the hook portion 22 is bent downward, the bead wire 55 is pulled out into a ring shape. Is separated from the hook by its own weight and dropped (FIG. 4 (b)), and naturally falls into the intake section 50 immediately below it, and the bead wire is later collected.

Further, the bottom plate 13 is driven by the tilting drive means 35.
Is opened to drop the waste tire 5 from which the bead wire 55 has been removed into the hopper 111 of the crusher. After that, the elevating and lowering driving means 31 is operated to descend, and the tilting and driving means 3
Close 5 At that time, the lowering operation and the closing operation may be performed at the same time.

FIG. 5 shows another embodiment of the bead wire removing device 10 for waste tires. The positioning means of this embodiment is such that the tire holding means 11 is fixed and the lifting drive means 31.
However, it employs a mechanism that moves the wire drawing means up and down. In this example, in order to engage the hook portion 22 with the bead 54, the reciprocating driving means 25 having a hook body connected thereto is used.
The fixing plate 26 for fixing the above is lifted by the lifting drive means.

The tire holding means 11 includes the waste tire supply section 7
While it is fixed on the base 9 at the same level as,
The fixed plate 26 of the reciprocating drive means 25 is mounted on the base 9 by the rail 2
It is mounted so that it can move up and down via 7.

The lift drive means 31 uses an air cylinder to fix the cylinder on the base 9 (this base is not shown), and the drive shaft 32, which is the piston shaft, of the reciprocating drive means 25. It is fixed to the fixed plate 26, and the fixed plate 26, the reciprocating drive means 25, and the hook portion 22 are moved up and down in conjunction with each other by expansion and contraction of the piston shaft, and the hook portion is positioned with respect to the bead. Since this structure does not require the upper and lower positioning means for the tire holding means 11, the bottom plate 13 can be tilted and driven 35 for opening and closing.
Can be easily arranged. Other configurations including the opening / closing drive of the bottom plate 13 may be the same as those in the first embodiment.

FIG. 6 further shows a positioning means of a bead wire removing device 30 for a waste tire according to another embodiment. In this example, the tire holding means 11 and the reciprocating drive means 2
The fixing plate 26 of FIG. 5 is fixed and the lifting means for engaging the bead 54 with the inserted hook portion 22 is used as the positioning means by using the hanging means. In this example, the hanging means is , A crane that can transport tires is used. The crane as a suspending means is a grip claw 42 fixed to a chain 41 suspended on the crane,
The upper side of the waste tire 5 placed on the tire holding device is gripped, and the tire 5 itself is vertically moved and adjusted, and the hook portion 22
Position and engage bead 54 with.

In the arrangement shown in FIG. 6, the crane chain 4
In the tire suspended by 1, the lower portion of the tire opening portion 53 is arranged close to the vertical slot 15 of the side plate 12,
As described above, the hook 22 is inserted into the opening 53 through the vertical slot 15 by the reciprocating driving means 25. In this state, if the chain 41 is moved upward, the waste tire 5 is also lifted and the hook 22 is removed. The beads 54 can be brought into close proximity or contact. Then, if the hook portion 22 is retracted by the reciprocating driving means 25 as it is, the hook portion 22 engages with the bead wire 55 as shown in FIG. 4, and only the bead wire 55 is pulled out through the vertical slot 15.

In this embodiment, the tilting drive means for the bottom plate 13 and the tire holding means 1 in the first and second embodiments.
The lifting drive means 1 is omitted. As the other constitution of the tire holding means 11 and the reciprocating drive means 25, the same ones as in the above-mentioned embodiment are used.

A suspending means such as a crane may be used not only for the positioning by the ascending / descending operation but also for carrying the waste tire after removing the bead wire to the crusher 110 or performing the next process operation of temporarily storing. Good.

Instead of the opening and closing structure by tilting the bottom plate 13 used in the above embodiment, the front plate 14 can be tilted forward and opened and closed without tilting the bottom plate 13. . Normally, the front plate is erected vertically or inclined appropriately upward, and the waste tire is stopped at the front plate.However, in order to move the waste tire after removing the bead wire, the front plate is not horizontal or Tilt below that. The tires can roll on the open front plate 14 and move (via a ramp guideway if necessary). In this case, the inlet hopper 111 of the crusher 110 can be arranged in front of the front plate 14 or at the front side of the required inclined guide path, and the waste tire can be guided to this hopper.

In the above embodiment, the tire holding means 11
Although there is no problem even if the waste tire 5 has a slight dimensional difference, when treating a light vehicle tire having a large dimensional difference and a normal vehicle tire or a large vehicle tire, the waste tire 5 It is possible to adopt a structure in which the positions of the side plate 12 and the front plate 14 can be adjusted for each frame F according to the dimensions.

[0050]

As is apparent from the above description, according to the bead wire removing apparatus for a waste tire of the present invention, the bead wire can be easily and efficiently pulled out from the waste tire by the positioning means and the pulling-out means. Scrap tires with no bead wire can be crushed immediately.

In particular, if a vertical slot is used for the through hole and a hook portion that bends downward to the hook portion is used, the bead wire engaged with the hook portion is subjected to the shearing action of the bead in the vertical slot and the bead or tire. Only the bead wire can be completely separated from the rest of the body. Further, since the hook portion is bent downward, the pulled-out bead wire can be immediately slid off from the hook portion by its own weight and collected, and does not remain on the hook portion. Therefore, the removal work of the bead wire can be carried out easily and efficiently, the means for removing the ring-shaped bead wire from the hook portion can be omitted, and the structure of this equipment can be simplified accordingly and the durability can be improved.

In the tire holding means, if a pair of side plates are provided on both sides of the tire and the bead wire drawing means is arranged corresponding to each side plate, the bead wires are simultaneously removed from the left and right, and the removal work of the bead wires is more efficient. It can be carried out.

[Brief description of drawings]

FIG. 1 is a perspective view of a bead wire removing device for a waste tire according to an exemplary embodiment of the present invention.

FIG. 2 is a perspective view of a crusher arranged directly below a bead wire removing device according to an embodiment of the present invention.

FIG. 3 is a partial cross-sectional view (a) showing a relationship between a tire and a hook portion of a hook body in a tire holding device of a bead wire removing device of an embodiment, and a cross-sectional view of a tip portion of the hook portion (b).
Indicates.

FIG. 4 is an external view showing a process in which a hook portion pulls out a bead wire from a bead in a bead wire removing device,
(A) shows the initial state of the drawing operation, and (b) shows the state at the time of completion of the drawing operation.

FIG. 5 is a perspective view of a bead wire removing device for a waste tire according to another embodiment of the present invention.

FIG. 6 is a partial side view of a bead wire removing device for a waste tire according to still another embodiment of the present invention.

[Explanation of symbols]

10 Bead wire removal device 11 Tire holding means 12 side plates 13 Bottom plate 14 front plate 21 Hook body 22 Hook part 25 Reciprocating drive means 15 vertical slots 31 Lifting and driving means 35 Tilt drive means 5 scrap tires 53 Wheel rim opening 54 beads 55 bead wire 7 Waste tire supply means

Claims (11)

[Claims] 1. A device for removing a bead wire embedded in a bead of a waste tire, the tire holding means including a bottom plate for supporting a tread of a waste tire and a side plate for supporting a side wall of the tire. The tire holding means having a through hole opened in the side plate in a range extending from the rim opening of the waste tire to the side wall, and the wheel of the waste tire provided on the side of the tire holding means and inserted through the through hole. A hook body having a bent hook portion that can be inserted into a rim opening and engage with a bead of the waste tire, and a hook portion that advances and retracts the hook body to retract the hook portion that engages with the bead. Reciprocating drive means for pulling the bead wire out of the bead and pulling out the wire, and inserting the hook body into the wheel rim opening of the waste tire and A bead wire removing device for a waste tire, comprising: positioning means for relatively positioning the hook portion and the bead of the waste tire so that the hook can engage the bead wire. 2. The bead wire removing device according to claim 1, wherein the through hole is a vertically elongated slot, and the hook portion is formed by bending the tip downward. 3. The tire holding means according to claim 1 or 2, wherein a pair of left and right side plates are provided so that a waste tire can be held between the both side plates, and a wire drawing means is arranged in a pair of left and right corresponding to each side plate. The bead wire removing device described. 4. The bead wire removing device according to claim 1, wherein the positioning means includes a lifting / lowering driving means for lifting / lowering the tire holding means or the hook body. 5. The elevating and lowering drive means elevates and lowers the tire holding means between a lower position where a waste tire is supplied and an upper position where a hook is engaged with a bead of the retained waste tire. Bead wire removal device. 6. An up-and-down driving means for inserting the hook main body into the wheel rim opening of the waste tire held by the tire holding means, and a lower position for engaging the bead of the waste tire. The bead wire removing device according to claim 4, which is moved up and down in between. 7. The bead wire according to claim 4, wherein the positioning means is a hanging means for engaging the wheel rim opening of the waste tire or gripping the sidewall to position the hook with respect to the bead. Removal device. 8. The bead wire removing device according to claim 7, wherein the suspending means also serves as a carrying means for carrying in a subsequent step for crushing or temporarily storing the waste tire after removing the bead wire. 9. The bead wire removing device includes waste tire supply means connected to the rear of the tire holding means, having a slanted bottom surface, and having a gate for supplying waste tires to the tire holding means one by one. Item 10. The bead wire removing device according to any one of items 1 to 8. 10. The bead wire removing device according to claim 1, wherein the bottom plate of the tire holding means can be opened and closed vertically and the bottom plate can be tilted downward to drop and eject the tire. Bead wire removal device. 11. The apparatus is arranged above the crusher for waste tires, and the bottom plate of the tire holding means is arranged above the inlet hopper of the crusher or above the guide means to the inlet hopper. The waste tire after the bead wire is pulled out can be put into the hopper by tilting the bottom plate.
11. The bead wire removing device according to any one of 1 to 10.