JP2613069B2 - Centering method and apparatus for belt material - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for centering a belt material, and more particularly to a method for centering a belt material attached to a belt forming drum via a servicer. It concerns the device.

(Prior art)

Conventionally, when a belt material made of rubber or the like is attached to a belt forming drum, the belt material is supplied to the belt forming drum by a sticking conveyor or a servicer such as a belt supply device. In this case, the belt material is supplied to the belt material supply conveyor. Are centered by a centering mechanism comprising a pair of guide members disposed on both sides of the centering member.

[Problems to be solved by the invention]

By the way, the pair of guide members having the conventional centering structure are disposed on both sides of the belt material conveyor in a state where they are fixed along the width of the belt material, so that the belt materials have the same width. However, when a slight change is made in the left-right direction with respect to the belt material conveyance center line, the variation in the width of the belt material and the difference in the width are caused by the difference between the longitudinal side edge of the belt material and the guide member. There is a problem that it is difficult to make proper contact with the guide surface, and therefore the centering cannot be performed with high accuracy, so that the sticking accuracy is not stable and it is difficult to improve the quality.

[Object of the invention]

The present invention has been devised in view of such conventional problems, and the purpose is to make the width of the belt material affixed to the belt forming drum in the horizontal direction with respect to the transport center line during the transport. Even if it changes slightly, the longitudinal edge of the belt material always contacts the guide surface of the guide member to guide the belt material, so that the belt material is always centered and the servicer of the belt forming drum is The present invention provides a centering method of a belt material which can be supplied to the side of the belt material, so that the sticking accuracy can be stabilized and the quality can be improved.

Another object of the present invention is to provide a belt material centering device which can easily perform centering of a belt material by a simple mechanism.

[Means for solving the problem]

In order to achieve the above object, the present invention is a belt material centering device for attaching a belt material sequentially conveyed to a belt forming drum via a servicer, the belt material supply side of the servicer being provided with a belt material tip. At least one primary centering mechanism provided with a detection member for detecting an edge having a width on the side of the guide member, and a belt material is provided between the primary centering mechanism and the belt forming drum. A measuring conveyor provided with a cutting device for cutting the sheet with a bias, a secondary centering mechanism operating in synchronization with the primary centering mechanism, and a sticking conveyor for supplying a belt material to a belt forming drum are provided. , Based on a detection signal from a detection sensor provided in the primary centering mechanism, via a scaling drive mechanism and a synchronous operation mechanism. The guide block and the guide members of the primary centering mechanism and the secondary centering mechanism are configured so as to synchronize and expand and contract to automatically correct the guide width. The gist of the invention is that the line is centered with respect to the line.

[Function of the invention]

The present invention is a centering method of a belt material configured as described above and performing centering via a servicer when attaching a belt material sequentially conveyed to a belt forming drum, wherein: The position of both ends of the tip of the coming belt material,
A pair of detection sensors provided on a guide member of a primary centering mechanism disposed on the belt material supply side detects a deviation amount between both end positions of the belt material and the center of the pair of detection sensors, Based on the detection signal from the detection sensor, a pair of expandable and contractible guide blocks and a guide member of the primary centering mechanism are operated to expand and contract to automatically correct the guide width, and at the same time, the downstream side of the primary centering mechanism. The pair of expandable and contractible guide blocks and guide members of the secondary centering mechanism located at the same time are simultaneously expanded and contracted to automatically correct the guide width, and the belt material being conveyed is centered with respect to the conveyance center line. By doing so, it is possible to always maintain the width dimension of the belt material to improve the sticking accuracy and to improve the quality.

(Example of the invention)

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a side view of a centering device embodying the present invention, wherein 1 is a rotatable belt forming drum, 2 is a belt material cut into a predetermined length on a belt forming drum 1 and centered. This is a servicer that supplies W (rubber-coated steel cord strip).

The servicer 2 includes an attaching conveyor 3 that is driven to rotate in synchronization with the belt forming drum 1, and a measuring conveyor 4 that is rotatable in synchronization with the attaching conveyor 3.
A cutting device 5 for cutting the belt material W installed on the measuring conveyor 4 with a bias; and a first centering ring installed on the belt material supply side (the right side in FIG. 1) of the measuring scale conveyor 4. Mechanism 6, a secondary centering mechanism 7 installed between the adhering conveyor 3 and the measuring conveyor 4, and a belt material W installed between the measuring conveyor 4 and the primary centering mechanism 6. And a detection sensor 8 for detecting an edge having a width H.

As shown in FIGS. 1 and 2, the adhering conveyor 3 is rotationally driven by an adhering drive motor 9, and has a plurality of suction holding means 3a such as a vacuum and a macnet on its lower surface. The belt member W is transported while being suction-held. Further, the measuring conveyor 4 is driven to rotate by a measuring drive motor 10, and is provided with a plurality of suction holding means 4a such as a vacuum and a macnet on its upper surface so as to suck and hold the belt material W. .

The primary centering mechanism 6 and the secondary centering mechanism 7 are composed of substantially the same components,
As shown in FIG. 2 and FIG. 2, a pair of left and right opposing guide blocks 11 and 12 are disposed in a direction orthogonal to the conveyance center line XX of the belt material W, and inner wall surfaces of the guide blocks 11 and 12 are arranged. Have guide members 11a, 11b and 12a, 12b, respectively.
Is provided.

The guide blocks 11 and 12 provided with the guide members 11a and 11b and 12a and 12b are synchronized with the expansion and contraction mechanisms 13a and 13b for expanding and contracting the conveyance center line XX and the expansion and contraction mechanisms 13a and 13b. Synchronous operation mechanisms 14a and 14b to be operated and an enlargement / reduction drive mechanism 15 are provided to be connected.

The guide blocks 11 and 12 are moved along the transport center line XX
The expansion and contraction mechanisms 13a and 13b for approaching and moving away from the drive shaft 17 and the drive shafts 17 and 18 provided with right and left screws 16a and 16b, respectively, as shown in FIGS. A block 26 for supporting the guide block 12 (a block for supporting the guide block 12 is omitted) is screwed into the drive shaft 17, 18.
Pulleys 19a and 19b constituting the synchronous operation mechanisms 14a and 14b, and a connection belt 20 wound around the pulleys 19a and 19b are provided. At both ends of the drive shafts 17, 18, a frame 3 is provided.
0 are rotatably supported by bearing members 32a, 32b such as bearing boxes via side frames 31a, 31b installed on the upper side, and the opposed side frames 31a, 31b are connected via a plurality of guide shafts 35. Have been.

A pulley 21 constituting an enlargement / reduction drive mechanism 15 is attached to a tip end of a shaft end 17a extending from the drive shaft 17 of the primary centering mechanism 6, and this pulley 21 and an enlargement / reduction drive motor
A timing belt 25 is wound around a pulley 24 provided on a drive shaft 23 of the motor 22 to transmit a rotational driving force.

Note that the centering mechanism is 2 in the above embodiment.
Although the table is installed, the present invention is not limited to this, and a plurality of centering mechanisms may be used to perform the expansion and contraction operations in synchronization.

A pair of guide blocks arranged in parallel with each other
11 and 12 include a plurality of shafts 33 parallel to the drive shafts 17 and 18.
A plurality of rotatable free wheels 27 are attached to each shaft 33 at predetermined intervals, and a terminal portion of each shaft 33 protruding from one of the guide blocks 11 and 12 is provided with a plate 34. Are connected via

The plate 34 is slidably supported on a support arm (not shown) provided on a part of the side frame 31b. That is, the free wheels 27 rotatably mounted on the shaft 33 are all mounted on the guide blocks 11 and 12, approaching and separating simultaneously with the guide blocks 11 and 12, and the plate 34 is supported by the support arm. Therefore, the belt material W of the steel cord strip correctly covered with the rubber can be conveyed without being inclined.

Further, on the upper portions of the guide blocks 11 and 12, free wheels 27a, which follow the rotation of the free wheel 27, prevent both ends or one end of the belt material W from floating, and perform centering accurately. 27b are rotatably disposed at predetermined intervals.

Although only one row of free wheels 27 is shown in FIG. 4, it is necessary to arrange free wheels 27a and 27b closer to the center in order to prevent floating at the center.

Reference numeral 28 denotes a potentiometer attached to the side frame 31b.

A detection sensor 8 for detecting the width H of the belt material W;
Are disposed on both sides in the width direction of the belt material W in order to detect the width H of the belt material W using a pair of upper and lower laser type discrimination sensors.

The detection sensor 8 is a sensor that detects the edge of the width H of the belt material W as described above, and the center position thereof is positioned flush with or slightly outside the inner wall surfaces of the guide members 11a and 11b. A pair of opposing guide blocks
Installed on 11. Then, based on the width H of the belt material W, an actual width H of the belt material is detected by a light shielding amount of a 10 mm width laser beam emitted from both sides with respect to a guide width (a value of the potentiometer 28) set in advance. Based on the signal, the guide members 11 of the pair of guide blocks 11 and 12 of the primary centering mechanism 6 and the secondary centering mechanism 7 are provided.
a, 11b and 12a, 12b are slightly changed with respect to the transport center line XX.

[Function of the invention]

Next, the centering method of the present invention having the above-described configuration will be described.

First, FIG. 3 shows a state where the primary centering mechanism 6 correctly centers the belt material W.

When a belt material W sequentially conveyed via the servicer 2 is attached to the belt forming drum 1, the belt material W having a predetermined width H sequentially supplied is disposed on the belt material supply side of the servicer 2. The pair of detection sensors 8 detects the belt width of the belt material W with respect to the transport center line XX.

That is, the respective guide surfaces of the pair of guide members 11a, 11b and 12a, 12b are made to coincide with the centers of the pair of detection sensors 8 so that the side edges of the belt member W are constantly irradiated with the laser light of the detection sensors 8. Guide members 11a, 11b and 1
The first and second centering mechanisms 6a and 12b are operated in synchronization with the first and second centering mechanisms 6 and 7, respectively.

The guide member 11a of the primary centering mechanism 6
The guide surface of 11b and the center of the pair of detection sensors 8 are
It is not always necessary to make them coincide with each other, but rather it is better to make it slightly (about 1 mm to 2 mm) wider than the center of the detection sensor 8.

In such a state, when the width H of the front end of the belt material W is detected based on the amount of laser light blocked by the pair of detection sensors 8, based on the detection signal from the detection sensors, the width H is disposed on both sides on the belt material supply side. A primary centering mechanism 6 comprising a pair of expandable and contractible guide blocks 11 and guide members 11a and 11b, and a guide block 12 and guide members 12a and 12b of the secondary centering mechanism 7 The drive shafts 17 and 18 are simultaneously driven to rotate via the expansion / contraction drive motor 22 and the synchronous operation mechanisms 14a and 14b, whereby the guide blocks 11 and 12 are connected via the block 26 screwed to the drive shafts 17 and 18. At the same time, the belt material W is conveyed and conveyed, and the conveyed belt material W is centered with respect to the conveyance center line XX.

The belt material W centered in this way is
It is cut to a predetermined length by a cutting device 5 which is held by the suction holding means 4a and installed on the measuring scale conveyor 4, and is held by the suction holding means 3a of the sticking conveyor 3 and supplied to the belt forming drum 1 side. It is.

That is, this operation will be described in more detail. The guide members 11a and 11b are mounted on the pair of guide blocks 11 by the primary centering mechanism 6 with the centers of the guide members 11a and 11b being flush with each other or slightly outside. When the belt member W passes through the detection range of the detection sensor 8, if the interval between the guide members 11a and 11b is wider than the width of the belt member W, the center of the detection sensor 8 is kept in contact with the guide members 11a and 11b until the guide members 11a and 11b properly contact. Belt material W
The closing operation is performed such that the edges in the width direction always keep the same positional relationship.

When the interval between the guide members 11a and 11b is smaller than the width of the belt material W, the opening operation is performed, contrary to the above-described operation.

In this manner, the belt material W is arranged at the correct position by the primary centering mechanism 6, conveyed by the measuring conveyor 4, is measured by appropriate means, and is automatically cut by the cutting device 5. is there.

At this time, the tip of the belt material W, in particular, sometimes deviates from a correct position.

However, when the fixed-length cut belt material Wa is sent out from the measuring conveyor 4 to the secondary centering mechanism 7,
The front end rides on the freewheel 27, and the tip abuts on the inclined portions of the guide members 12a, 12b.

The guide members 12a and 12b open and close in synchronization with the opening and closing operations of the primary centering mechanism 6 via the guide block 12, the block 26, the drive shaft 18, the timing belt pulley 19a, and the connecting belt 20. For the guide plate
Since the interval between the parallel portions W of 12a and 12b keeps the interval for appropriately contacting the widthwise edge of the rubber-coated belt material W, the belt material W is corrected to the correct position.

In a tire forming machine servicer, generally, a rubber-coated steel cord strip, that is, a belt material W is formed by:
Since the cut edge is continuous, the cut edge that has been automatically cut is brought onto the free wheel 27 of the secondary centering mechanism 7 to correctly separate the preceding belt material Wa and the rear belt material W. Can be done.

Then, the fixed-length cut belt material Wa correctly positioned by the second centering mechanism 7 moves to the lower surface of the attaching conveyor 3, is sucked and conveyed by the suction holding means 3a, and is appropriately transferred to the belt forming drum 1. It can be pressed and attached by means.

In the present invention, before the belt material W is supplied to the adhering conveyor 3 as described above, the detection sensor 8 detects the belt width H, and the first centering mechanism provided at the front and rear portions of the cutting device 5. Belt material to be supplied to the bonding conveyor 3 by performing centering by synchronizing the guide members 11a, 11b and 12a, 12b attached to the guide blocks 11, 12 with the secondary centering mechanism 7 and the secondary centering mechanism 7. Wa is always in a state of being centered with respect to the center of the belt forming drum 1, so that the bonding accuracy of the belt material W is stabilized and the quality can be improved.

〔The invention's effect〕

A method of centering a belt material to be centered via a servicer when affixing the belt material sequentially conveyed to the belt forming drum, wherein both end positions of the front end of the conveyed belt material are
A pair of detection sensors provided on a guide member of a primary centering mechanism disposed on the belt material supply side detects a deviation amount between both end positions of the belt material and the center of the pair of detection sensors, Based on the detection signal from the detection sensor, a pair of expandable and contractible guide blocks and a guide member of the primary centering mechanism are operated to expand and contract to automatically correct the guide width, and at the same time, the downstream side of the primary centering mechanism. The pair of expandable and contractible guide blocks and guide members of the secondary centering mechanism located at the same time are simultaneously expanded and contracted to automatically correct the guide width, and the belt material being conveyed is centered with respect to the conveyance center line. Therefore, even if the width of the belt material applied to the belt forming drum slightly changes in the By longitudinal side edges so as to guide constantly contacts the guide surface of the guide member,
The belt material can always be supplied to the servicer side of the belt forming drum in a state of being centered, so that there is an effect that the sticking accuracy is stabilized and the quality can be improved.

The present invention also relates to a belt material centering device for attaching a belt material sequentially conveyed to a belt forming drum via a servicer, wherein the belt material supply side of the servicer has an edge having a width on the belt material tip side. At least one or more primary centering mechanisms provided with a detection sensor for detecting the pressure on the guide member are provided, and the belt material is cut into a bias between the primary centering mechanism and the belt forming drum. A measuring conveyor provided with a cutting device, a secondary centering mechanism which operates in synchronization with the primary centering mechanism, and a sticking conveyor for supplying a belt material to a belt forming drum are installed. Based on a detection signal from a detection sensor provided in the centering mechanism, the primary centering mechanism is driven via a scaling drive mechanism and a synchronous operation mechanism. Synchronizes the guide block and the guide member grayed mechanism and the second-order centering mechanism by scaling actuated configured to automatically correct the guide width,
Since the conveyed belt material is configured to be centered with respect to the conveyance center line, the centering of the belt material can be easily performed by a simple mechanism. Can be performed accurately and efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a belt material centering device embodying the present invention, FIG. 2 is a plan view of a centering device, FIG. 3 is a plan view of a first centering mechanism,
FIG. 4 is a sectional view taken along the line III-III of FIG. DESCRIPTION OF SYMBOLS 1 ... Belt forming drum, 2 ... Servicer, 3 ... Sticking conveyor, 3a ... Suction holding means, 4 ... Scaling conveyor, 4a ... Suction holding means, 5 ... Cutting device, 6 ...
Primary centering mechanism 7, Secondary centering mechanism 8, Detection sensor 11, 12, Guide block, 11a, 11b, 12a, 12b Guide member, 13a, 13b Expansion / contraction mechanism .., 14a, 14b... Synchronous operation mechanism, 15... Enlargement / reduction drive mechanism, W, Wa... Belt material, H.

Claims (2)

(57) [Claims] 1. A centering method of a belt material for performing centering via a servicer when pasting a belt material sequentially conveyed to a belt forming drum, comprising: A pair of detection sensors provided on a guide member of a primary centering mechanism disposed on the belt material supply side is used to determine the amount of deviation between the both end positions of the belt material and the center of the pair of detection sensors. And automatically corrects the guide width by expanding and contracting a pair of expandable and contractible guide blocks and a guide member of the primary centering mechanism based on the detection signal from the detection sensor, and simultaneously adjusts the primary center. The pair of expandable and contractible guide blocks and the guide member of the secondary center ring mechanism located downstream of the ring mechanism are simultaneously expanded and contracted to reduce the guide width. A centering method for a belt material, comprising automatically correcting and centering a belt material being conveyed with respect to a conveyance center line. 2. A belt material centering device for attaching a belt material sequentially conveyed via a servicer to a belt forming drum, comprising: a belt material supply side of the servicer; At least one or more primary centering mechanisms provided with a detection sensor for detecting the pressure on the guide member are provided, and the belt material is cut into a bias between the primary centering mechanism and the belt forming drum. A measuring conveyor provided with a cutting device, a secondary centering mechanism which operates in synchronization with the primary centering mechanism, and a sticking conveyor for supplying a belt material to a belt forming drum are installed. Based on a detection signal from a detection sensor provided in the centering mechanism, the first centering is performed via a scaling drive mechanism and a synchronous operation mechanism. The guide block and the guide member of the mechanism and the secondary centering mechanism are configured so as to synchronize and expand and contract to automatically correct the guide width, and the belt material conveyed is centered with respect to the conveyance center line. A centering device for a belt material, wherein the centering device is configured to ring.