JPH0822575B2 - Positioning method for members in tire forming machine and mounting thereof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a member positioning method and device for a tire molding machine, and more specifically, positioning of various tire constituent members to be laminated on a molding drum. The present invention relates to a member positioning method and a device therefor in a tire molding machine in which a bright line projector is automatically moved for positioning in accordance with a bonding order of members.

[Prior art]

Conventionally, in a tire molding operation, when positioning various members on a molding drum and performing bonding,
The bright line projector was fixedly arranged according to the bonding position of various members.

Therefore, in a tire having many laminating members such as a large tire, a plurality of bright line projectors are fixedly arranged, and a plurality of positioning light beams projected from the plurality of bright line projectors onto the forming drum. An operator judges the position of the bonding member from the positions (markers) and carries out the work of bonding the tire constituent members.

However, the work of determining the position of the bonding member from among the plurality of positioning light beams is a work that requires skill and is prone to error, and when replacing the tire size,
It is necessary to adjust the positions of a plurality of positioning light beams each time, and depending on the method of supporting the bright line projector, one adjustment time requires 2 to 3 minutes, and it is impossible to improve productivity. There was a problem to say.

Further, in order to improve such a problem, a multi-line projection type bright line projector for printing a positioning light beam position (marker) in advance on a film or the like and replacing it is also commercially available,
It was not always possible to say that this was a good method because the labor and management of film making were difficult.

[Object of the Invention]

The present invention has been devised in view of such conventional problems, and its object is to provide a large number of tires with respect to a forming drum in a forming operation of a large tire having a large number of laminating members. Even when the constituent members are bonded at predetermined positions in a predetermined order, the tire constituent members are sequentially bonded to the molding drum by using at least one left or right pair of bright line projectors without using a large number of bright line projectors. By displaying while moving in accordance with the order of, it is possible to efficiently perform the bonding work, and it is possible to minimize mistakes such as mistakes in the bonding position, and even when replacing the tire size, the bright line A member positioning method and device for a tire molding machine, which can improve productivity because it is not necessary to adjust the position of the projector one by one. A.

[Structure of Invention]

In order to achieve the above-mentioned object, the present invention has a guide frame horizontally provided above a forming drum, in which a right-hand screw and a left-hand screw are horizontally distributed from a center of the length of the forming drum so as to be horizontally rotatable. This ball screw is provided with a pair of or two pairs of bright line projectors that can move in the same distance in the left-right direction in synchronization with the center of the drum length, and the position of the bright line projector is detected at one end of the ball screw. A detector for outputting to a drive motor provided on the other end of the ball screw is provided, and the projection position of the bright line projector that sequentially projects the member positioning light beam on the molding drum is set to various values set in the control device. It is configured to control the movement according to the member bonding position, and as the member position method, a pair of left and right bright line projectors,
By sequentially moving the various tire constituent members to be sequentially laminated on the molding drum to the laminating position according to the laminating order, and sequentially laminating the various tire constituent members along the positioning light beam sequentially projected on the molding drum. , It is possible to reduce the error of the position where the tire components are attached, and to perform the attaching work efficiently. Also, the productivity of the tire is improved without having to adjust the position of the bright line projector even if the size is changed. The gist is that it can be done.

Example of Invention

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of a member positioning device in a tire molding machine embodying the present invention, and FIG. 2 is a side view of FIG.
FIG. 3 shows a plan view, in which D indicates a tire forming drum, and the forming drum D is provided on a side portion of the forming drum D.
A column 2 that supports a guide frame 1 that is horizontally arranged above
Is erected.

At the center of the guide frame 1, as shown in FIG. 1, FIG. 4 and FIG.
A horizontally drivable ball screw 3 in which the right screw 3a and the left screw 3b are distributed to the left and right is horizontally arranged. The ball screw 3 has a left and a right screw in synchronization with the center OO of the drum length l. A pair of bright line projectors 4 and 5 that can move in the same direction in the same direction are attached. 6 is the drum length l
It is a fixed bright line projector that projects light to the center O-O.

A detector 8 (encoder) that detects the positions of the bright line projectors 4 and 5 and outputs an electric signal to a drive motor 7 provided at the other end of the ball screw 3 is attached to one end of the ball screw 3. Has been.

The drive motor 7 is driven by a command from a control device (not shown), and the control device determines the bonding position according to the bonding order of a plurality of tire constituent members (not shown) to be bonded to the molding drum D. It is set.

Next, a method of adhering a plurality of tire constituent members W to the forming drum D will be described with reference to the flowchart of FIG. 6 and FIGS. 7 and 8.

First, in a control device (not shown) that controls the drive motor,
The member bonding positions of a plurality of tire constituent members W are set.

When the control device operates the device from such a state (step in FIG. 6), the first tire constituent member W (1 ply) is moved to the forming drum D via the drive motor 7 and the ball screw 3. A pair of left and right bright line projectors 4 and 5 move in the left-right direction at the same distance in the left-right direction in synchronization with the center OO of the drum length 1 toward the member bonding position. This moved state is detected by the detector 8, converted into an electric signal of the position signal, and output to the control device for confirmation. Then, the positioning light beam Q is projected onto the forming drum D from the bright line projectors 4 and 5, and
The second tire component supplying device (not shown) projects to a predetermined position on the forming drum D (step).

In this state, the tip of the tire constituent member W that has come out of the first tire constituent member supplying device is obtained on the positioning light beam Q of the molding drum D (step), and the molding drum D makes one rotation in this state ( Step).

When the molding drum D makes one rotation and the bonding of the first tire constituent member W is completed, the terminal portion of the tire constituent member W is cut and spliced (step), and the first tire constituent member is supplied. The device returns to its original position (step).

The above-mentioned operation is a laminating work of the first tire constituent member W, that is, a one-ply laminating work, and then a laminating work of the second tire constituent member W is started.

That is, in accordance with a command from the control device, the pair of left and right bright line light projectors 4 are moved toward the member bonding position of the second tire constituent member W (two plies) with respect to the molding drum D via the drive motor 7 and the ball screw 3. And 5 are drum length l
The same distance toward the center O-O of the
Figures and steps).

Then, the positioning light beam Q is projected from the bright line projectors 4 and 5 onto the molding drum D, and the second tire component supplying device (not shown) projects to a predetermined position on the molding drum D (step). In this state, the tip of the tire constituent member W1 emitted from the second tire constituent member supplying device is obtained on the positioning light beam Q of the molding drum D (step), and the molding drum D makes one revolution in this state ( Step).

When the forming drum D makes one rotation and the bonding of the second tire constituent member W is completed, the end portion of the tire constituent member W1 is cut and spliced (step), and the second tire constituent member is supplied. The device returns to its original position (step).

Such an operation is repeated according to the number of the tire constituent members W, and the n-ply laminating work is performed (step).

As described above, even when a plurality of tire constituent members W are attached to a predetermined position of the molding drum D, efficient and reliable operation can be performed without using a plurality of bright line projectors as in the conventional case. It is possible to improve the efficiency of the laminating work.

〔The invention's effect〕

As described above, the present invention is a member positioning method in a tire molding machine for sequentially laminating various tire constituent members on a tire molding drum along a plurality of positioning light beams projected from a bright line projector, at least the left and right sides. A pair of the above-mentioned bright line projectors are sequentially moved to a laminating position in accordance with the laminating order of various tire constituent members which are successively laminated on a molding drum, and various tires are aligned with a positioning light beam which is sequentially projected on the molding drum. Since the constituent members are laminated in sequence, it is not necessary for the operator to perform the laminating work by judging the laminating position as in the conventional case, and the positioning can be performed automatically, so that errors in the laminating position will not occur. There is an effect that accurate laminating work can be performed.

Further, according to the present invention, a guide frame horizontally provided above the forming drum is provided with a horizontally drivable ball screw in which a right screw and a left screw are horizontally distributed from the center of the forming drum length. The ball screw is provided with at least a pair of bright line projectors that can be moved in the same distance in the left-right direction in synchronization with the center of the drum length, and one end of the ball screw detects the position of the bright line projector and the other end of the ball screw is detected. A detector for outputting to a drive motor provided on the side is provided, and the projection position of the bright line projector for sequentially projecting member positioning light beams on the molding drum is moved according to various member bonding positions set in the control device. Since it is controlled so that the device does not become complicated, the operation is simple and the tire component bonding work can be reliably performed, thus improving the tire productivity. There is an effect that can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a member positioning device in a tire molding machine embodying the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG. 4 is a guide. FIG. 5 is an enlarged front view of the frame, FIG. 5 is a plan view of FIG. 4, FIG. 6 is a flowchart of a step of laminating tire constituent members, and FIGS. 7 and 8 are diagrams of a bright line projector in the step of laminating tire constituent members. It is explanatory drawing which shows an operating state. 1 ... Guide frame, 3 ... Ball screw, 4, 5,
6 ... Bright line projector, 7 ... drive motor, 8 ... detector.

Claims (2)

[Claims] 1. A member positioning method in a tire molding machine, in which various tire constituent members are sequentially laminated on a tire molding drum along a plurality of positioning light beams projected from a bright line projector, and at least a pair of right and left sides is provided. The bright line projector is sequentially moved to a laminating position according to a laminating order of various tire constituent members to be sequentially laminated on a molding drum, and various tire constituent members are arranged along a positioning light beam sequentially projected on the molding drum. A member positioning method in a tire building machine, which is characterized by sequentially laminating. 2. A member positioning device for a bright line projector for sequentially projecting the bonding positions of various tire constituent members on a tire forming drum, wherein a guide frame provided above the forming drum is provided with a length of the forming drum. A horizontally drivable ball screw in which right and left screws are distributed to the left and right from the center is arranged horizontally, and at least a pair of these ball screws that can move in the left and right direction at the same distance in synchronization with the center of the drum length. The above-mentioned bright line projector is provided, and a detector for detecting the position of the bright line projector and outputting it to the drive motor provided at the other end of the ball screw is provided at one end of the ball screw, and a member positioning light beam is provided on the molding drum. The light emitting position of the bright line light emitting device that sequentially emits light is controlled so as to move in accordance with various member bonding positions set in the control device. In member positioning device to a tire molding machine according to claim.