JP2825218B2 - Tire transport loader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire transport loader for moving a green tire from an unvulcanized tire mounting position to a mold clamping position between an upper mold and a lower mold by horizontally moving and vertically moving a chuck means. Things.

[0002]

2. Description of the Related Art In general, a tire vulcanizer raises and lowers an upper mold with respect to a fixed lower mold by means of a mold elevating means, and moves a green tire to a mold clamping position between the lower mold and the upper mold to form a cavity. And vulcanizing and molding the green tire by heating while pressing the inner surface of the green tire with a bladder.

At this time, the transfer of the green tire from the unvulcanized tire mounting position where the green tire before vulcanization molding is mounted to the mold clamping position is performed by a tire transfer loader. A conventional tire transport loader has a chuck means for holding a green tire, a chuck elevating means for elevating and lowering the chuck means, and a horizontal moving means for horizontally moving the chuck means, which are separately provided in front of the tire vulcanizer. Have been. After the upper mold is raised, the tire transport loader transports the green tire to the mold clamping position by moving the chuck means horizontally and vertically.

Another conventional technique is shown in FIG.
As shown in FIG. 5, there is also a configuration in which a horizontal moving means 103 is attached to a mold elevating means 102 for elevating and lowering the upper mold 101, thereby horizontally moving the mold elevating means 102 together with the chuck means 105 and the chuck elevating means 106. .

[0005]

However, in the above-mentioned conventional tire transport loader, since the chuck lifting / lowering means 106 needs to be provided separately from the mold lifting / lowering means 102, detection means and control means for interlocking are required. This is a factor that increases the cost of tire vulcanizers. In particular, in the hydraulic tire vulcanizer, the chuck elevating means 106 is controlled at multiple points using a linear sensor, a rotary encoder, or the like. Further, in the conventional tire transport loader, since the chuck lifting / lowering means 106 and the horizontal moving means 103 are indispensable means for vertically moving and horizontally moving the chuck means 105, the number of parts and the arrangement space are reduced to reduce the tire vulcanization. There were limits to promoting cost reduction and miniaturization of the machine. Horizontal movement is END
Although used in END, the chuck elevating movement needs to detect and control the middle of the elevating stroke.

In a tire transport loader having a structure in which the mold elevating means 102 is horizontally moved by the horizontal moving means 103, the upper mold 101 and the mold elevating means 10
Since a heavy object such as 2 is moved horizontally together with the chuck means 105 and the chuck elevating means 106, there is a problem that the positioning accuracy in the horizontal direction is apt to be reduced, and the work of adjusting the horizontal movement must be frequently performed. This is because it is necessary to perform horizontal stroke positioning by stopping the brake motor that drives the horizontal moving unit 103, and therefore, it is not possible to perform more accurate positioning than sliding of the brake. In order to make the stop position accurate, there is a method of directly stopping the mold elevating means 102 with a stopper or the like. However, in this case, excessive torque is applied to the worm speed reducer of the driving system, and the worm speed reducer may be damaged. Occurs.

[0007] Therefore, the present invention can be easily linked to the elevation of the upper mold 101, reduce the number of components and the space required for placement, and maintain high positioning accuracy for horizontal movement. It is an object of the present invention to provide a tire transport loader capable of performing the following.

[0008]

In order to achieve the above object, according to the first and second aspects of the present invention, the green tire is unvulcanized by moving horizontally and vertically moving a chuck means for holding the green tire. It is moved from the mounting position to a mold clamping position between the upper mold and the lower mold, and has the following features.

That is, the invention of claim 1 is characterized in that the horizontal moving means for moving the chuck means in the horizontal direction is provided in the mold elevating means of the tire vulcanizer which holds and moves the upper mold up and down. The invention of claim 2 is
The horizontal moving means is provided so as to be able to move up and down with respect to the mold elevating means.

[0010]

According to the first aspect of the present invention, since the tire transport loader moves up and down in conjunction with the elevation of the upper mold, the detecting means and the control means for interlocking use the elevation means for raising and lowering the upper mold. Since the control unit is used, the chuck unit is not required, and the lifting and lowering of the chuck unit is performed by the mold lifting unit of the tire vulcanizer. Accordingly, the number of parts and the space required for the tire transport loader are reduced, so that the cost and size of the tire vulcanizer can be significantly reduced. In addition, since only the lightweight chuck means is moved horizontally, the positioning accuracy in the horizontal direction is improved and is hardly reduced. Further, in the conventional method in which the tire transport loader is provided separately, the lifting cylinder is considerably long because the chuck lifting stroke is large. Therefore, there is a case where the height is higher than the press height and cannot be accommodated in the building. However, in the case of the tire transport loader having this configuration, since the height is not higher than the press height, it can be sufficiently accommodated in the building.

Further, according to the second aspect of the present invention, since the horizontal moving means can be moved up and down with respect to the mold elevating means, the tire transfer loader can be raised at the time of mold exchange to facilitate the exchanging operation. At the same time, it becomes possible to adjust the lowering position of the chuck means in accordance with the green tire at the unvulcanized tire mounting position.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The tire transport loader according to the present embodiment is designed to be used in, for example, a tire vulcanizer having the configuration shown in FIGS. That is, as shown in FIG. 2, the tire vulcanizer has a base frame 1 fixed to a floor surface. A cylindrical tie rod 3 is provided upright at the center of the base frame 1, and the tie rod 3 is movably inserted into the center of the top frame 5 located above the base frame 1. I have.

The above-mentioned tie rod 3 is connected to the base frame 1
A base portion 3a penetrated and fixed to the base frame, an intermediate portion 3b raised from the base frame 1, and a head portion 3c located at the uppermost portion. A circumferential groove 3d having a diameter smaller than the diameter of the head 3c and the intermediate part 3b is formed therebetween. A pair of half blocks 4.4 are attached to the circumferential groove 3d, and the half blocks 4.4 contact the top surface 3c of the tie rod 3 and the upper surface of the top frame 5 during mold clamping. Thereby, the top frame 5 and the base frame 1 are fixed via the tie rods 3.

The above-mentioned top frame 5 is provided with a pair of vulcanized molding portions 39, symmetrically arranged so that the tie rod 3 is located at the center. These vulcanization molding sections 39, 39 have a tightening mechanism 8.8 in which a mold tightening mechanism and a mold height adjusting mechanism are integrated, and at the lower end of the tightening mechanism 8.8, An upper platen 15 having a built-in heating source is fixed.

An upper mold 16 is provided on the lower surface of the upper platen 15, and the upper mold 16 is heated by a heating source of the upper platen 15 during vulcanization molding. Below the upper mold 16, the lower mold 1
7 are arranged, and a lower mold 17 and an upper mold 16 are provided.
The green tire 7 is loaded into the cavity formed at the time of mold clamping.

The lower mold 17 has an upper platen 15
The lower mold 17 is fixed to the base frame 1 via a lower platen 18 having a built-in heating source, and a lift rod 20 of a center mechanism 19 is penetrated in the center of the lower mold 17. The lifting rod 20 supports a bladder 21, and the bladder 21 urges the inner surface of the green tire 7 loaded in the cavity outward.

The top frame 5 supporting the upper mold 16 via the upper platen 15 and the mold fastening means 8 is supported by a frame lifting cylinder 6 fixed to the base frame 1 as shown in FIG. ing. The frame lifting / lowering cylinder 6 is arranged along the tie rod 3, and the tip of the cylinder rod 6 a is fixed to the lower surface of the top frame 5.

On the back surface (right side in the figure) of the top frame 5, frame guide members 29 are provided. These frame guide members 29 are movably engaged with a frame guide rail 30 erected in parallel with the axis of the tie rod 3. Then, the top frame 5 is raised along the frame guide rail 30 by the frame lifting cylinder 6 pushing out the cylinder rod 6a, and can be pulled out of the tie rod 3 and reach the highest position shown by the two-dot chain line in the drawing. On the other hand, the frame elevating cylinder 6 descends along the frame guide rail 30 by pulling in the cylinder rod 6a, and is able to reach the lowest position shown by the solid line in FIG.

On the front surface (left side in the figure) of the top frame 5, a green tire 7 before vulcanization molding mounted on a tire mounting table 40 at an unvulcanized tire mounting position is mounted on the upper mold 16 and the lower mold 16. A tire transport loader 27 for transporting to a mold clamping position between the molds 17 is provided. The tire transport loader 27 is moved up and down together with the top frame 5 by the frame elevating cylinder 6.
, A loader guide member 23 movably engaged with the loader guide rail 22, a turning means 25 (horizontal moving means) provided on the loader guide member 23, and a turning means. 25, and a loader chuck 26 (chuck means) provided at the second position.

The loader guide rail 22 is provided so as to be parallel to the axis of the tie rod 3. Then, the loader guide rail 22 and the loader guide member 2
Reference numeral 3 indicates that the height position of the loader chuck 26 can be adjusted so as to correspond to the mounting height of the green tire 7 before vulcanization molding. It is positioned to facilitate replacement. The placement height of the green tire 7 is detected by a green tire detection limit switch provided on the lower surface of the loader chuck 26. The height position of the loader chuck 26 is determined by the green tire detection limit. Adjustment and control are performed using a detection signal when the switch is pressed against the green tire 7. The turning means 25 is fixed to the loader guide member 23 via the support member 24, and includes a turning member 25a, a turning shaft 25b provided at the turning center of the turning member 25a, and a turning member. A turning member 25c is provided at the lower end of the moving shaft 25b, and is formed so that the tip end is located at a position away from the axis of the rotating shaft 25b.

The rotating shaft 25b is set so that its axis is parallel to the axis of the tie rod 3, and is suspended so that its lower end is located below the lower surface of the upper mold 16. And a revolving member 2 provided at the lower end.
A loader chuck 26 capable of holding the green tire 7 is provided at the tip of 5c. As shown in FIG. 3, the tire transport loader 27 having such a configuration is disposed in a pair on the left and right corresponding to the vulcanization forming sections 39, and rotates the rotating member 25a. By rotating the loader chuck 26 via the pivoting member 25c, the green tire 7 is horizontally moved from the unvulcanized tire mounting position of the tire mounting table 40 to the mold clamping position of the vulcanization forming section 39. I have.

On the other hand, as shown in FIG. 1, an unloader means 31 is arranged on the back side (the right side in the figure) of the top frame 5. The unloader means 31 is supported by a frame guide rail 30 and a vertical frame 32 having both ends fixed to the floor surface, and has a guide shaft 34, an unloader guide member 35, a turning member 36, and an unloader chuck 37. Then, the unloader lifting / lowering cylinder 33 pushes the cylinder rod 33a to move the unloader guide member 35 to the guide shaft 34.
The unloader guide member 35 is raised along the guide shaft 34 by pulling in the cylinder rod 33a.

The vertical frame 32 supporting the unloader means 31 also supports the post cure inflator 28. The post cure inflator 28 includes an upper tire holding portion 28a and a lower tire holding portion 28b which are fixed vertically, and these tire holding portions 28a
28b is configured to inject high-pressure air into the green tire 7 when holding the green tire 7 so as to expand and cool the green tire 7.

As shown in FIG. 3, between the post cure inflator 28 and the vulcanization molding section 39,
8 are provided. And the unloader means 31
Removal of the vulcanized tire 7 from the vulcanization molding section 39, loading and unloading of the vulcanized tire 7 to and from the post-cure inflator 28, and transportation of the vulcanized tire 7 after expansion and cooling.
8 is carried out.

In the above configuration, the tire transport loader 2
7 will be described. First, as shown in FIG.
The loader guide member 23 is moved up and down and adjusted so that the lowering position of the loader chuck 26 becomes the optimum position for the height position of the green tire 7 on the tire mounting table 40. Then, the adjustment is completed and the loader guide member 23
Is fixed to the loader guide rail 22, the loader chuck 26 is turned by the turning means 25 so as to be located above the tire mounting table 40. Then, the top frame 5 is held in a state where the half blocks 4 are separated from each other.
Is lowered by the frame elevating cylinder 6, whereby the loader chuck 26 is lowered together with the top frame 5 and inserted into the green tire 7 on the tire mounting table 40.

When the loader chuck 26 holds the green tire 7, the frame lifting cylinder 6 raises the loader chuck 26 together with the top frame 5.
At this time, the frame lifting cylinder 6 is attached to the top frame 5
And the upper mold 16 is also raised.
6 is moved above the lower mold 17. Then, when the green tire 7 held by the loader chuck 26 reaches a predetermined position above the lower mold 17, the lifting by the frame lifting cylinder 6 is stopped.

Thereafter, the green tire 7 is horizontally moved between the upper mold 16 and the lower mold 17 of the vulcanization-forming section 39 by turning the loader chuck 26 by the turning means 25. Then, the loader chuck 26 is lowered together with the top frame 5 by the frame lifting / lowering cylinder 6, so that the loader chuck 26 is lowered.
Is lowered to the mold clamping position on the lower mold 17.

Next, after the loader chuck 26 is retracted from the vulcanization molding section 39 by the lifting of the top frame 5 and the turning of the turning means 25, the top frame 5 is lowered to the lower limit position by the frame lifting cylinder 6. Become. Then, the half blocks 4 are moved so as to be in contact with each other, and the half blocks 4 are fitted into the circumferential groove 3 d of the tie rod 3. As a result, the top frame 5 is fixed to the tie rod 3 by the lock mechanism including the half blocks 4.4, the circumferential groove 3d, and the head 3c.
Is fixed to the base frame 1 via the tie rods 3.

Thereafter, the upper mold 16 and the lower mold 17
The upper mold 16 and the lower mold 17 are heated, and the inner surface of the green tire 7 loaded in the cavity is pressed by the bladder 21, whereby the green tire 7 is vulcanized. become.

Next, the upper mold 16 and the lower mold 1
When the top frame 5 is replaced, the top frame 5 is raised by the frame lifting cylinder 6, so that the upper mold 16 and the tire transport loader 27 held by the top frame 5 are raised. Then, the loader guide member 23 is raised to the uppermost portion of the loader guide rail 22, and the tire transport loader 27 is retracted so as not to hinder the mold changing operation.

The loader chuck 26 in this embodiment is
Is moved by turning the turning means 25, but is not limited to this, and may be moved by moving forward and backward.

As described above, the tire transport loader 27 of the present embodiment moves the chuck means (loader chuck 26) for holding the green tire 7 horizontally and vertically so as to place the green tire 7 on the unvulcanized tire. The horizontal movement means (swivel means 25) for moving the loader chuck 26 in the horizontal direction by swiveling or advancing / retracting movement holds the upper mold 16 from the position to the mold clamping position between the upper mold 16 and the lower mold 17. Lifting and lowering means of a tire vulcanizer (top frame 5)
Is provided.

As a result, the tire transport loader 27 moves up and down in conjunction with the elevation of the upper mold 16, so that there is no need for a detecting means and a control means for interlocking, and the cost of the tire vulcanizer can be reduced. ing. Furthermore, since the lifting and lowering of the chucking means is performed by the mold lifting and lowering means of the tire vulcanizer, the lifting and lowering means dedicated to the chucking means is not required, and the number of parts and arrangement space are reduced, thereby greatly reducing the cost of the tire vulcanizer. It is possible to reduce the size. In addition, since only the lightweight chuck means is moved horizontally, the positioning accuracy in the horizontal direction is improved and is not easily reduced.

Further, the tire transport loader 27 has a structure in which the mold elevating means moves up and down along the frame guide members 29, 29 and the frame guide rail 30, so that the positioning accuracy in the horizontal direction is further improved and lowered. It is difficult.

Further, the tire transport loader 27 has a structure in which a horizontal moving means (swing means 25) is provided to be able to move up and down with respect to the mold elevating means (top frame 5) by the loader guide rail 22 and the loader guide member 23. Therefore, when the mold is replaced, the tire transport loader 27 can be raised to facilitate the replacement operation, and the lowering position of the chuck means is set corresponding to the green tire 7 at the unvulcanized tire mounting position. It is possible to adjust.

[0036]

According to the first aspect of the present invention, the green tire is moved upward and downward from the unvulcanized tire mounting position by moving the chuck means for holding and holding the green tire upward and downward. The horizontal movement means for moving the chuck means in the horizontal direction is provided in the mold elevating means of the tire vulcanizer which holds and moves the upper mold up and down.

As a result, the tire transport loader moves up and down in conjunction with the elevation of the upper mold, so that there is no need for a detecting means and a control means for interlocking, and the elevation of the chuck means is performed by the mold elevating means of the tire vulcanizer. The lifting and lowering means dedicated to the chuck means is not required. Accordingly, the number of parts and the space required for the tire transport loader are reduced, so that the cost and size of the tire vulcanizer can be significantly reduced. Furthermore, since only the lightweight chuck means is moved horizontally, there is an effect that the positioning accuracy in the horizontal direction is improved and the positioning is hardly reduced.

Further, the invention of claim 2 is as described above,
Since the horizontal moving means is provided so as to be able to move up and down with respect to the mold elevating means, in addition to the effect of claim 1, it is possible to raise the tire transport loader at the time of mold exchange and to facilitate the exchange operation. And the lowering position of the chuck means can be adjusted corresponding to the green tire at the unvulcanized tire mounting position.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a side view of a state in which a tire vulcanizer is mold-clamped.

FIG. 2 is an explanatory diagram showing a front view of a state in which a tire vulcanizer is mold-clamped.

FIG. 3 is an explanatory diagram showing a turning operation of the tire transport loader.

FIG. 4 illustrates a conventional example, and is an explanatory diagram illustrating an operation of a tire transport loader.

FIG. 5 illustrates a conventional example, and is an explanatory diagram illustrating an operation of a tire transport loader.

[Explanation of symbols]

 Reference Signs List 1 base frame 3 tie rod 4 half block 5 top frame 6 frame lifting cylinder 7 green tire 8 mold tightening means 16 upper mold 17 lower mold 22 loader guide rail 23 loader guide member 23 24 support member 25 turning means 26 loader chuck 27 tire transport Loader 28 Post cure inflator 31 Unloader means 38 Carrier 39 Vulcanization molding part 40 Tire mounting table

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kotaro Ozaki 2-3-1, Shinhama, Araimachi, Takasago-shi, Hyogo Kobe Steel, Ltd. Inside Takasago Works (56) References JP-A-52-58776 (JP, A) JP-A-56-161139 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B29C 33 / 02,35 / 02,33 / 20,31 / 04

Claims (2)

(57) [Claims] 1. A tire transport loader for moving a green tire from a mounting position of an unvulcanized tire to a mold clamping position between an upper mold and a lower mold by horizontally moving and raising and lowering a chuck means for holding the green tire. The horizontal moving means for moving the chuck means in the horizontal direction is moved up and down in conjunction with elevating the upper mold.
As the tire conveying loader, characterized in that provided on the top frame of the tire vulcanizer elevating holds the upper mold. 2. The tire transport loader according to claim 1, wherein said horizontal moving means is provided so as to be able to move up and down with respect to said top frame .