JPH07100953A - Automatic supply device for tire molding material - Google Patents

Abstract

PURPOSE:To prevent a deterioration of a product accuracy caused by a malfunction of a non-contact sensor and an occurrence of a loss time caused by a failure in detection. CONSTITUTION:A tire molding material 1 is fed to an aligning device 9 to be aligned. The width of the tire molding material 1 is detected by a detector. A detection signal obtained at this time is transmitted to a controller and stored therein. The tire molding material 1 is fed to a belt conveyor 3 through a material cutter 7. When the belt conveyor 3 is brought to a stop, a control signal corresponding to the stored detection value is transmitted from the controller to a guide plate. The guide plate is moved forward to correct the deformation of the tire molding material 1 outward of the sharp edge. On the other hand, a guide member is advanced toward the guide plate to press the sharp edge part of the tire molding material 1 against the guide plate to correct the deformation of the molding material 1 inward of the sharp edge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically supplying a tire cord-containing tire molding material used in tire molding.

[0002]

2. Description of the Related Art An automatic feeder for a tire molding material, which uses a non-contact sensor (photoelectric sensor) to detect the stop position of a guide plate and stops the guide plate at a predetermined position, has been publicly known.

[0003]

SUMMARY OF THE INVENTION The above-mentioned conventional automatic feeder for tire molding material has a problem in that the non-contact sensor malfunctions so that the product accuracy is lowered, and the detection failure causes a loss time. . The present invention has been made in view of the above problems, and an object thereof is to provide a tire molding material automatic supply device capable of preventing a decrease in product accuracy due to a malfunction of a non-contact sensor and the occurrence of loss time due to detection failure. Is in the point of trying to provide.

[0004]

In order to achieve the above object, the present invention provides a belt conveyor for conveying a tire molding material cut into a predetermined shape so as to have a shearing edge to a drum, and a belt of the belt conveyor. A magnet installed on the lower surface to maintain the posture of the tire molding material on the belt, a means for temporarily stopping the belt conveyor when the tire molding material reaches a predetermined position, and a guide surface parallel to the belt conveyor. A guide plate having the same guide surface that can be moved forward and backward in a direction orthogonal to the belt conveyor to position and correct one side edge of the tire molding material, and located on the opposite side of the guide plate with the tire molding material sandwiched therebetween. And a guide member for pressing the sharp edge portion of the tire molding material against the guide plate to correct it. Te, is provided a detector for detecting the width of the tire forming material, and a control device for stopping at a predetermined position the guide plate by the detection signal from the detector to the centering device.

[0005]

The automatic device for supplying a tire molding material of the present invention is configured as described above, and sends the tire molding material to the centering device for centering and detects the width of the tire molding material by the detector. , The detection signal obtained at that time is sent to the control device for storage, and the tire molding material is sent to the belt conveyor through the material cutting device, and when the belt conveyor is stopped, it is stored in the guide plate from the control device. The control signal corresponding to the detected value is sent to move the guide plate forward to correct the deformation of the tire molding material to the outside of the shear pledget, while the guide member is moved toward the guide plate to move the tire molding material. The shearing edge portion of is pressed against the guide plate to correct the deformation of the inside of the shearing edge.

[0006]

EXAMPLES Next, the automatic apparatus for supplying a tire molding material of the present invention will be explained with reference to one embodiment shown in FIGS. 1 to 9. 1 in FIG. 1 is a tire molding material (breaker), 2 is a tire molding drum, Is a belt conveyor, and 4 and 4'is a material end deformation part straightening device. Reference numeral 4-1 in FIG. 2 is a correction guide driving device, and FIG.
~ 4-2 and 4-3 in FIG. 6 are straightening guide running guides, 4-
4 is a guide plate, 4-5 and 4-8 are guide member forward / backward moving cylinders, 4-6 and 4-9 are guide member elevating cylinders, 4-
Reference numerals 7 and 4-10 are guide members, and 4-12 are magnets.

In FIG. 6, 4-13 and 4-16 are solenoid valves for the guide member lifting cylinder, 4-14 and 4-17 are solenoid valves for the guide member lifting cylinder, and 4-15 and 4-18 are pressure reducing valves.
4-19 is a material confirmation sensor. 4 of FIGS. 3 and 6
20, 4-22 are guide member forward movement confirmation sensors, 4-2
1, 4-23 are guide member descending confirmation sensors, 5 in FIG.
Is a belt conveyor lifting device, 6 is a belt conveyor mount, 7 is a material cutting device, 8 is a let-off device, and 9 is a centering device.

The details of the centering device 9 will be described with reference to FIGS. 7 to 9. 9-1 is a frame, 9-2 is a conveyor roller, 9-3 is a roller holder, 9-4 is an upright roller, 9-. 5
Is a pin, 9-6 is a pinion, 9-7 is a rack, 9-8 is a spring, 9-9 is a linear scale, and 9-10 is a guide rod. Next, the operation of the automatic tire molding material feeder shown in FIGS. 1 to 9 will be specifically described. (1) First, the operation of the entire tire molding material automatic supply device will be described. The tire molding material 1 unwound from the let-off device 8 is supplied to the belt conveyor 3 via the centering device 9 and the material cutting device 7. When the tire molding material 1 is supplied for the length of one tire, the cutting device 7 operates,
The tire molding material 1 is cut, and the deformation of the shear pledge at the tip of the cut tire molding material 1 is corrected by the material end deformation portion straightening device 4. It is straightened by the deformed portion straightening device 4 ′, and then the elevating device 5 operates in the extending direction to raise the tip of the belt conveyor 3 and press the tip of the tire molding material 1 on the belt conveyor 3 to the molding drum 2. The tire molding material 1 is wound around the molding drum 2 while being conveyed. (2) Next, the operation of the centering device 9 will be described. When the tire molding material 1 is placed on the roller conveyor 9-2 and transferred by the material cutting device 7, the pinion 9-
6 rotates, and this rotation is 2 through two racks 9-7.
The roller pedestals 9-3 are transmitted to the two roller pedestals 9-3, and the roller pedestals 9-3 are spread out against the spring force of the two springs 9-8. The width of the tire molding material 1 is detected by moving equidistantly from the center position of the centering device 9 while being kept in parallel by the rod 9-10.

At this time, the roller scale 9-9a fixed to the pedestal 9-1 and the linear scale detector 9-9b fixed to the roller pedestal 9-3 allow the roller pedestal 9 to be detected.
A movement amount of -3 is detected, and the detection signal obtained at that time is sent to a computer or the like and stored. (3) Next, the operation of the material end deformed portion correcting device 4 will be described. The tire molding material 1 supplied to the belt conveyor 3 is conveyed to the material end deformation portion correction device 4 part, and the sharp edge of the tip thereof contacts the material confirmation sensor 4-19,
When the material confirmation sensor 4-19 is turned on, the belt conveyor 3 is stopped (see FIG. 4).

When the belt conveyor 3 is stopped, the guide plate 4-4 moves to the tip of the tire molding material 1 by the driving device 4-1 such as a motor (see FIG. 5). As the movement amount at this time, a numerical value stored in the computer or the like is used. The guide plate 4-4 is supported by the two guide members 4-2 and 4-3, and an accurate parallel movement is performed. At the stage where the guide plate 4-4 is set, the outwardly deformed portion of the shearing edge of the tire molding material 1 is corrected.

Further, since the guide plate 4-4 cannot correct the inward deformation of the sharp edge, the dog member is pressed against the guide plate 4-4 to correct the guide member 4-.
7, 4-10 are provided. This guide member 4-
7 and 4-10 can be moved forward and backward by guide member forward and backward moving cylinders 4-5 and 4-8 attached to the guide plate 4-4. Further, the guide member lifting cylinders 4-6 and 4-9 attached to the guide plate 4-4 can be lifted and lowered, and the inwardly deformed portion of the tire molding material 1 is corrected.

The operation at this time will be described in more detail with reference to FIG. When the tire molding material 1 is set on the belt conveyor 3 and the guide plate 4-4 is moved by a command from the computer and stopped, the solenoid valves 4-13, 4-1 are operated.
6 is operated, the guide member forward and backward cylinders 4-5, 4-8
When the rod advances to reach the stroke end, the guide member advancement confirmation sensors 4-20 and 4-22 are turned on, the solenoid valves 4-14 and 4-17 are actuated, and the guide member lifting cylinder 4-6. When the rod of the guide member lowering confirmation sensor 4-23 descends to reach the stroke end, the guide member lowering confirmation sensors 4-21, 4-23 are turned on, and these sensors 4-21, 4-23 are turned on. O
When it becomes N, the solenoid valves 4-13 and 4-16 are turned off, and the rods of the guide member forward / backward moving cylinders 4-5 and 4-8 retract.

At this time, the guide members 4-7 and 4-10 attached to the tip of the rod apply the tire molding material 1 to the guide plate 4.
-4, the inwardly deformed portion of the shearing edge of the tire molding material 1 is corrected. In this case, if the pulling force is too strong, the tire molding material 1 is deformed, so pressure reducing valves 4-15 and 4-18 are provided in the piping line to drive the driving air pressure of the guide member forward / backward moving cylinders 4-5 and 4-8. Are in control.

The correction time is arbitrarily set by a timer (not shown) mounted in the control panel, and after the correction is set, the original state is restored by the reverse operation. In this embodiment, the command signal of the solenoid valve is output from the sensor, but it may be output from the timer. The tire molding material 1 in which the shear edges have been corrected is held by the magnetic force of the magnets 4-12 mounted under the conveyor belt and does not re-deform.

Since the magnets 4-12 are arranged along the entire length of the belt conveyor 3, the tire molding material 1 is supplied to the tire molding drum 2 without being deformed during transportation. The magnet 4-12 is not necessary for the central portion of the tire molding material 1 and may have a wrap of about 50 mm with the tire molding material 1.

[0016]

As described above, the automatic feeder of the tire molding material of the present invention sends the tire molding material to the centering device,
While performing centering, the width of the tire molding material is detected by the detector, the detection signal obtained at that time is sent to the control device and stored, and the tire molding material is sent to the belt conveyor via the material cutting device, When the belt conveyor is stopped, the control device sends a control signal corresponding to the stored detection value to the guide plate to advance the guide plate and correct the deformation of the tire molding material to the outside of the shear pledget. On the other hand, the guide member is advanced in the direction of the guide plate, and the sharp edge portion of the tire molding material is pressed against the guide plate to correct the deformation to the inside of the sharp edge, thus reducing the product accuracy due to the malfunction of the non-contact sensor. It is possible to prevent the occurrence of loss time due to poor detection.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of an automatic feeder for a tire molding material of the present invention.

FIG. 2 is a plan view showing an apparatus for correcting deformation of a shearing edge of a tire molding material of the automatic feeder.

FIG. 3 is a vertical sectional front view taken along the line AA of FIG.

FIG. 4 is an explanatory view of the operation of the deformation correcting device.

FIG. 5 is an explanatory view of the operation of the deformation correcting device.

FIG. 6 is a system diagram showing an air piping system of the deformation correcting device.

FIG. 7 is a plan view of the centering device.

8 is a vertical cross-sectional rear view taken along the line BB of FIG.

9 is a rear view in vertical section taken along the line CC in FIG. 7 on the right side;
The left side is a vertical cross-sectional rear view taken along the line DD in FIG. 7.

[Explanation of symbols]

1 Tire Molding Material 2 Tire Molding Drum 3 Belt Conveyor 4 and 4'Shape Edge Deformation Correcting Device for Tire Molding Material 4-4 Guide Plate 4-7 Guide Member 4-10 〃 5 Belt Conveyor Lifting Device 6 Belt Conveyor Stand 7 Material Cutting Device 8 Let-off device 9 Centering device 9-9a Detector (linear scale rod) 9-9b Detector (linear scale detector)

Claims (1)

[Claims] 1. A belt conveyor which conveys a tire molding material cut into a predetermined shape so as to have a shearing edge to a drum, and a belt conveyor installed on the lower surface of the belt conveyor to maintain the posture of the tire molding material on the belt. A magnet, a means for temporarily stopping the belt conveyor when the tire molding material reaches a predetermined position, and a guide surface parallel to the belt conveyor, and the guide surface is provided so as to be movable back and forth in a direction orthogonal to the belt conveyor. And a guide plate for positioning and correcting one side edge of the tire molding material, and a shearing edge portion of the tire molding material located on the opposite side of the guide plate with the tire molding material sandwiched between the guide plate and the guide plate. In an automatic tire molding material supply device having a guide member for straightening, a detector for detecting the width of the tire molding material, and a detector for detecting the width of the tire molding material. A device for automatically supplying a tire molding material, characterized in that a centering device is provided with a control device for stopping the guide plate at a predetermined position in response to a detection signal from them.