JP2012240340A - Conveyance apparatus of tire component member and tire molding system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyance apparatus which receives and delivers a tire component member smoothly and surely at all times even when heights of axial lines of two molding drums are different from each other, and to provide a tire molding system.SOLUTION: The conveyance apparatus 4 includes a holding part 5 for surrounding and holding the outer peripheral side of the tire component member and a conveyance part 6 for moving the holding part 5 between the two tire molding drums 2 and 3, in conveying the cylindrical tire component member molded on one tire molding drum 2 to the other tire molding drum 3. Between the holding part 5 and the conveyance part 6, a lifting drive means is provided for absorbing a difference between a height Hat which the tire component is received from the one molding drum 2 and a height Hat which the tire component is delivered to the other molding drum 3.

Description

  The present invention relates to a conveying device for transferring a cylindrical tire constituent member molded on one tire molding drum onto the other tire molding drum and a tire molding system using the same when molding a raw tire. In particular, even when the axial heights of the two molding drums are different from each other, a technique is proposed in which the tire component can be received and delivered to the tire molding drum smoothly and reliably at all times. Is.

  2. Description of the Related Art When molding a raw tire, there is known a transfer device that transfers a cylindrical tire constituent member formed by winding a sheet-like member around a peripheral surface of a molding drum to another molding drum including a former. ing. In this case, in general, two molding drums are installed so that their axial heights are the same, and the tire component is moved from one molding drum to the other molding drum by the conveyor device at the same height. It is being handed over as it is.

By the way, around each tire molding drum, a feeding device that feeds the sheet-like member to the tire molding drum, or a joining device that connects the ends of the sheet-like member wound around the tire molding drum to form a cylindrical shape. When the tire molding system is laid out with the same axial height of each tire molding drum, for example, the size of the accessory device disposed below one tire molding drum As the size of the tire increases, it becomes necessary to increase the height of all other tire molding drums and attached devices, which not only creates a wasteful space, but also supports the device more firmly from the viewpoint of safety. Is required.
Because of this, it is preferable to change the height of each individual molding drum as necessary according to the position where the accessory device is arranged, etc., and to keep the overall height of the tire molding system low. As a transfer device that can cope with the case, for example, as described in Patent Document 1, between the first transfer unit that raises and lowers the tire constituent member, and between the first transfer unit and the molding drum, A second conveying means that moves forward and backward, and in a state where the second conveying means is displaced below the first conveying means, the first conveying means that supports the tire constituent member is moved downward to displace the tire structure. There has been proposed a technique for changing the transfer height of the tire constituent member by transferring the member to the second conveying means.

JP 2000-211038 A

  By the way, in the conveying apparatus described in Patent Document 1, two apparatuses for transferring the tire constituent members are required, and the tire constituent members are transferred from the first conveying means to the second conveying means. Since the cycle time also increases, the transfer height of the tire component can be changed with a simpler configuration, and the transfer device that can shorten the transfer cycle time of the tire component, and a tire molding system using the transfer device The appearance of was eagerly desired.

  An object of the present invention is to realize a transport device for transferring a cylindrical tire constituent member between tire molding drums having different axial heights with a simpler configuration, and by using the transport device, An object of the present invention is to realize a tire molding system capable of absorbing even if a deviation occurs between the tire molding drums.

  The present invention is a conveying device of a cylindrical tire constituent member molded on one tire molding drum to the other tire molding drum, the holding portion surrounding and holding the outer peripheral side of the tire constituent member, A conveying unit that moves the holding unit between two tire molding drums, and the height of the tire component received from one molding drum and the other molding drum between the holding unit and the conveying unit. This is a tire component transporting device provided with lifting drive means for absorbing the difference in delivery height.

  Here, preferably, the transport device is provided with a traversing means for moving the holding portion in a horizontal plane in a direction orthogonal to the advancing / retreating direction of the transport device.

  Preferably, in the tire molding system using the conveying device, at least one of the two tire molding drums is provided with height detection means for detecting at least one of the receiving height and the delivery height, The driving means is provided with position adjusting means for changing the height of the holding portion in accordance with the height information from the height detecting means.

  The conveying device according to the present invention provides a receiving height of the tire constituent member from one molding drum and a delivery to the other molding drum between the holding portion of the tire constituent member and the conveying portion that moves the holding portion. Since the elevating drive means that absorbs the difference in height is provided, the transfer of the tire constituent member can be performed between the molding drums whose axial line heights are different in advance and between the molding drums that have been changed afterwards. One transfer device can always perform smoothly and reliably.

  Further, in the transport apparatus according to the present invention, when a transverse means for moving the holding portion in a horizontal plane in a direction orthogonal to the advancing / retreating direction of the transport apparatus is provided, there is a horizontal shift in the axis between the molding drums. Even if it occurs, this deviation can be absorbed, so that, for example, it is possible to save the labor required for centering adjustment when the molding drum is installed and for correcting the misalignment of the molding drum accompanying a change with time.

  In the tire molding system using the transport device of the present invention, at least one of the two tire molding drums is provided with a height detection means for detecting at least one of the receiving height and the delivery height, and the lifting drive means By providing a position adjusting means for changing the height of the holding portion according to the height information from the height detecting means, even if the molding drum height changes from a predetermined position due to, for example, a change over time, Accordingly, the height of the holding portion of the transport device can be changed, so that the raw tire can be molded with the expected accuracy.

1 is a side view showing an embodiment of a tire molding system according to the present invention. It is a front view which shows embodiment of the conveying apparatus according to this invention by the arrangement | positioning attitude | position on the rail which connects between each forming drum. It is a side view which shows other embodiment of the tire shaping | molding system according to this invention. It is a front view which shows embodiment of the conveying apparatus of the tire shaping | molding system shown in FIG. 3 with the arrangement | positioning attitude | position on the rail which connects between each shaping | molding drum.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a tire molding system according to the present invention. Here, the tire molding system 1 includes a molding drum 2 on the supply side of a cylindrical tire constituent member (not shown), a molding drum 3 on the receiving side of the tire constituent member, and a tire configuration delivered from the molding drum 2. And a conveying device 4 for transferring the member to the molding drum 3.

Here, the molding drums 2 and 3 are cantilevered and rotatably attached to the respective bases 2a and 3a. For example, a sheet-like member (not shown) is wound around the outer peripheral surface of the molding drum 2. Thus, a cylindrical tire constituent member can be molded.
Further, in the illustrated example, the axial heights of the molding drums 2 and 3 are different from each other, and the conveying device 4 molds the received tire constituent member with a height H _{1 at} which the tire constituent member is received from the molding drum 2. There is a difference in height from the height H ₂ delivered to the drum 3.

  As shown in FIG. 2, the transport device 4 includes the holding portion 5 including the annular base portion 5 a and the leg portion 5 b provided so as to protrude downward from the base portion 5 a, and the holding portion 5. And a transport unit 6 that moves between the two molding drums 2 and 3.

In addition, the holding unit 5 includes a plurality (six in the illustrated example) of segments 8 having a plurality of suction pads 7 at intervals in the circumferential direction on the inner peripheral side of the base 5a. The segments 8 are reduced in diameter and displaced by the operation of the cylinders 9 attached to the base 5a and connected to the segments 8. The suction pad 7 is connected to a negative pressure generator (not shown), and a cylindrical tire constituent member (not shown) molded on the molding drum 2 is housed inside the holding portion 5, and the segments 8 are compressed. It can be sucked and held under radial displacement.
In addition, in the illustrated example, the holding unit 5 includes two vertical movement sliders 10 that are slidably connected to the transport unit 6 on the front wall and the back wall of the leg 5b (in the illustrated case, two on each wall surface). Arranged).

  Further, as shown in FIG. 1, the transport unit 6 includes a lifting guide rail 11 that guides the sliding of the vertical movement slider 10 on each wall facing the front wall and the back wall of the leg 5 b. Thereby, the holding | maintenance part 5 can be raised and descended based on the action | operation of the raising / lowering drive means which is not shown in figure.

In addition, as shown in FIG. 2, the transport unit 6 includes two pairs of front and rear sliders 12 that form a pair on the left and right sides, as shown in FIG. A pair of transport rails 14 laid on the base 13 is slidably disposed via the front and rear sliders 12.
Thereby, the holding | maintenance part 5 can move forward / backward between the shaping | molding drum 2 and the shaping | molding drum 3 under the action | operation of the conveyance drive means which is not shown in figure.

  Here, as shown in the drawing, the middle part of the transport unit 6 is divided into upper and lower parts, and as a traversing means, the left and right slider 15 and the left and right slider 15 are slidably combined and transported in a horizontal plane. When the traverse guide rail 16 extending in the direction orthogonal to the rail 14 is provided at the intermediate portion thereof, the holding portion 5 can be traversed as required under the operation of a traversing drive means (not shown).

  In addition, the raising / lowering drive means, the conveyance drive means, and the traverse drive means described above may be, for example, a combination of a gear mechanism, a screw mechanism, and a motor, or a cylinder, and an expected conveyance speed and stop movement accuracy. Various selections can be made according to the above.

Using tire molding system 1 serving as the above-described configuration, in the state when the performing transfer of the tire component members, the transport height of the conveyor 4, combined with receiving height H ₁ of the molding drum 2, The conveying device 4 is moved backward to the molding drum 2 under the operation of the conveying driving means, and the tire constituting member on the molding drum 2 is moved to the molding drum under the reduced diameter displacement of each segment 8 based on the operation of the cylinder 9. Adsorption holding is performed based on the reduced diameter deformation of No. 2.

Next, the conveyance device 4 holding the tire constituent members by suction is moved forward with respect to the molding drum 3 under the operation of the conveyance driving means. At this time, it is necessary to adjust the transfer height of the conveying device 4 to the delivery height H ₂ of the molding drum 3. This height adjustment is based on the operation of the lifting drive means during the movement to the molding drum 3. Since it can be performed by moving the holding part 5 of the conveying device 4 downward, the cycle time does not increase with the up-and-down displacement of the holding part 5.

According to the tire molding system 1 described above, even if the axial heights of the molding drums 2 and 3, that is, the receiving height H ₁ and the delivery height H ₂ are changed afterwards, for example, due to changes over time, Since the change in the height can be easily absorbed by changing the transfer height of the holding unit 5 of the transport device 4, the required height adjustment can be performed very easily.
Here, at least one of the molding drums 2 and 3 is provided with height detection means (for example, a laser displacement meter) 2b and 3b for detecting at least one of the receiving height H ₁ and the delivery height H ₂ (example shown in the figure). Then, the height of the holding unit 5 is set according to the height information (for example, voltage and current output from the laser displacement meter) from the height detecting means. When a position adjusting means (for example, a controller) (not shown) is provided to change the height of the transfer device 4, the transfer height of the transfer device 4 can be automatically changed. Even so, the raw tire can be molded with the expected accuracy.

  In addition, in the case where the above-described traversing means is provided in the transport unit 6, even if a horizontal shift occurs between the molding drums 2 and 3 in the horizontal direction, this shift can be sufficiently absorbed. For example, it is possible to save the labor required for adjusting the centering when the molding drums 2 and 3 are installed, and for adjusting the misalignment of the molding drums 2 and 3 due to changes over time.

  Further, as shown in FIGS. 3 and 4, the conveying device 4 is provided with a rotating member 17 (for example, a cross roller bearing or a slider that travels on an arc track), and the holding unit 5 is moved under the operation of a rotation driving means (not shown). It can also be held rotatably about the vertical axis M. According to this, even when the horizontal axes of the forming drums 2 and 3 are not parallel, the parallel displacement can be absorbed and the tire constituent members can be transferred.

  Note that it is not necessary to provide all the various sliders and rotating members described above, and they may be selected and provided according to the required displacement. Further, in accordance with the height detection means 2b and 3b described above, various detection means for detecting the horizontal position of the molding drum and the rotational position around the axis M may be provided. The position and number of these various detection means are necessary. It can be arbitrarily selected according to the above.

DESCRIPTION OF SYMBOLS 1 Tire molding system 2 Molding drum 2b Detection means 3 Molding drum 3b Detection means 4 Conveyance device 5 Holding part 6 Conveyance part 7 Suction pad 8 Segment 9 Cylinder 10 Vertical movement slider 11 Lifting guide rail 12 Front and rear slider 13 Base 14 Conveyance rail 15 Left and right Slider 16 Traverse guide rail

Claims (3)

A conveying device for a cylindrical tire constituent member molded on one tire molding drum to the other tire molding drum,
A holding portion that surrounds and holds the outer peripheral side of the tire constituent member, and a conveyance portion that moves the holding portion between two tire molding drums, between the holding portion and the conveyance portion, A conveying device for a tire constituent member provided with an elevating driving means for absorbing a difference between a receiving height from one molding drum and a delivery height to the other molding drum.   The tire component conveying device according to claim 1, further comprising a traversing means for moving the holding portion in a horizontal plane in a direction perpendicular to the advancing / retreating direction of the conveying device.   At least one of the two tire molding drums is provided with a height detection means for detecting at least one of the receiving height and the delivery height, and the elevation driving means is provided with height information from the height detection means. The tire molding system using the conveying device for a tire constituent member according to claim 1 or 2, wherein a position adjusting means for changing the height of the holding portion is provided.