JP3737868B2 - Production management system for transmission belt production line - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a production management system in a transmission belt manufacturing line in which a reinforcing canvas is inserted around a transmission belt molding die to manufacture a transmission belt.
[0002]
[Prior art]
In general, when forming a transmission belt such as a V-ribbed belt, for example, a step of inserting a reinforcing canvas to be a back canvas of the transmission belt is required around a cylindrical transmission belt molding die.
[0003]
Such a canvas is inserted into the mold by releasing the support at one end of the mold supported at both ends and inserting the canvas from the opened end.
[0004]
[Problems to be solved by the invention]
However, in such a case, the size of the required canvas is determined according to the size of the mold, but if the size of the used mold is mistakenly recognized by the operator, the required canvas is determined. There is a risk that a canvas of a different size may be selected and inserted. In such a case, since it is difficult to insert the canvas, it is necessary to repeat the canvas insertion work again, which causes a reduction in work efficiency.
[0005]
The present invention has been made in view of the above points, and an object of the present invention is to provide a production management system in a transmission belt manufacturing line that can reliably eliminate a recognition error of the size of a mold.
[0006]
[Means for Solving the Problems]
The invention of claim 1 is a production management system in a transmission belt manufacturing line for manufacturing a transmission belt by inserting a reinforcing canvas around a transmission belt molding die, and is conveyed together with each of the transmission belt molding dies. The magnetic recording means for magnetically recording the mold information about the mold and the magnetic recording means corresponding to the placed transmission belt forming mold are detachably housed while the transmission belt forming mold is placed. A conveyance base having a storage pocket, a length measuring means for measuring the circumference of the mold when inserting a canvas into the transmission belt molding mold, and a reading means for reading the circumference of the mold from the magnetic recording means A comparison means for receiving signals from the length measuring means and the reading means and comparing the measured circumference of the mold with the circumference of the mold recorded in the magnetic recording means, and the comparison means The signal of A configuration and a notifying means for notifying the presence or absence of type agreement.
[0007]
According to the first aspect of the present invention, when the canvas is inserted around the transmission belt molding die, the circumference of the die is measured by the length measuring means, while the magnet accommodated in the pocket portion of the conveyance base. The circumference of the mold is read by the reading means from the recording means, the data of both mold circumferences are compared by the comparing means, and then the presence / absence of matching of the molds is notified by the notifying means.
[0008]
According to a second aspect of the present invention, in the production management system according to the first aspect, the magnetic recording means magnetically records the canvas information to be used for the mold, and the reading means is more expensive than the magnetic recording means. The canvas information to be used for the mold is read, and the notification means notifies the canvas to be used for the mold.
[0009]
According to the invention of claim 2, the canvas information recorded on the magnetic recording means is read by the reading means, and the notifying means notifies the canvas to be used for the conveyed mold.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a schematic configuration diagram showing a part of a production line of a V-ribbed belt which is a transmission belt to which the present apparatus is applied. In such a production line, when the mold 1 (see FIG. 2) is loaded from the loading position P1, the mold 1 is transported by the transport conveyor means 2, while the mold release agent processing step S1 and the periphery of the mold 1 A canvas insertion step S2 for inserting a canvas (not shown) into the cord, a cord winding step S3 for spirally winding a core cord (strength body) around the mold around which the canvas is wound, and a rubber tape as an adhesive rubber is wound Tape winding step S4 for attaching, bottom rubber winding step S5 for winding a rubber sheet as a bottom rubber, preheating step S6 for preheating for vulcanization, vulcanization steps S7-9 for vulcanizing the belt molded body, The belt molded body before the V-ribbed belt is formed by cutting the belt molded body by a predetermined width through the cooling step S10 for cooling after the completion of the vulcanization and the mold drawing step S11 for removing the belt molded body from the mold 1. Discharged Both mold 1 after die cutting finished is discharged from the discharge position P2. In addition, although not specifically illustrated, the belt molded body is then cut into a predetermined belt width, a width cutting step, a rib crest processing step, a rib crest inspection step, a measuring step, a mark printing step, and packaging. A series of manufacturing steps is completed through the steps.
[0012]
FIG. 2 shows a mold used for manufacturing a V-ribbed belt. The mold 1 has a cylindrical shape, and has upper and lower engaging portions 1a and 1b on the upper and lower sides. The mold 1 is rotatably mounted on the transport base 4 and transported in a vertically placed state in which the axis is in the vertical direction. It is like that. In the vicinity of the upper and lower ends of the mold 1, a plurality of air holes 1c,..., 1d,. .
[0013]
As shown in FIGS. 3A and 3B, mold information such as the circumference of the mold and canvas information such as the size of the canvas used for the mold are magnetically recorded on the transport base 4. A storage pocket portion 4a for detachably storing the magnetic recording means 5 is provided. The magnetic recording means 5 is supported in a state of being slightly lifted by the support portions 4b and 4c so that the operator can easily hold it as necessary. Therefore, if the operator holds the magnetic recording means 5 and applies a well-known recording / reading device and writing device thereto, reading and writing of information about the mold 1 can be freely performed, and such conveyance is performed. The reading and writing of information about the mold 1 conveyed by the base 4 is usually automatically performed not only at the beginning of the production line but also in the middle.
[0014]
4 and 5 show a mold clamping station, which assists the process of carrying a cylindrical canvas around the mold 1 where the release agent has been applied in the previous process. In such a station, the lower end portion of the mold 1 which is placed on the transport base 4 with its axis line vertically oriented and transported by the transport conveyor means 2 from the previous step is clamped together with the transport base 4 and automatically Then, the mold 1 is turned to a predetermined angle in the horizontal plane toward the worker, and the worker inserts a cylindrical canvas.
[0015]
4 and 5, reference numeral 11 denotes a first frame, on which an engagement shaft portion 12 that is detachably engaged with the upper engagement portion 1 a of the mold 1 is rotatably supported. A driven pulley 13 is fixed to the upper end portion of the shaft portion 12, and a drive pulley 15 that is rotationally driven by a drive motor (not shown) attached and fixed to the first frame 11 is attached to the driven pulley 13. (See FIG. 6).
[0016]
In addition, a second frame 19 is provided at the lower end of the first frame 11, and the second frame 19 is detachably engaged with the lower engagement portion 1 b of the mold 1 and the lower side. A clamp part (not shown) for clamping the engaging part 1b is provided. In addition, the said clamp part is comprised with an air chuck etc. and is set as the mechanism which can hold the metal mold | die 1 in a cantilever.
[0017]
Further, the second frame 19 is a canvas insertion stage provided with roller conveyor means 17 on the upper side, and the die 1 can be conveyed together with the conveyance base 4 to the next cord winding process by the roller conveyor means 17. It is said that. Further, on the second frame 19 (canvas insertion stage), the mold 1 is supported by the cylinder means 18 (see FIG. 7) together with the transport base 4 so as to be movable up and down as will be described later.
[0018]
The second frame 19 has a connecting portion 19a that protrudes toward the conveying conveyor means 2, and one end of a rotating arm 24 is integrally provided on the connecting portion 19a via a connecting shaft 23. 19a and the rotating arm 24 maintain a fixed positional relationship. The other end of the rotating arm 24 is rotatably connected to the tip of a piston rod 25a of a raising / lowering hydraulic cylinder means 25 as a driving means, and a cylinder body 25b of the hydraulic cylinder means 25 is supported on the base frame 21. Has been. Then, by the expansion and contraction operations of the hydraulic cylinder means 25, the first frame 11 is moved to the first position P11 (see FIG. 3) with the axis of the mold 1 in the vertical direction and the axis of the mold 1 Is rotated between the second position P12 (see FIG. 4) and the horizontal direction. Reference numeral 26 denotes a stopper which regulates the second position P12.
[0019]
Further, as shown in FIG. 6, in order to confirm whether there is an error in the size of the mold 1 being conveyed, the mold clamp station is provided with a measurement for measuring the outer peripheral length of the mold 1. A long device 31 is provided. The length measuring device 31 measures the outer peripheral length of the mold 1 by bringing the outer peripheral surface of the disk-shaped length measuring roll 32 into frictional contact with the outer peripheral surface of the mold 1. The length measuring roll 32 is integrally connected to a flange portion 33 a of a roller shaft 33 rotatably supported by a housing 37, and is connected to the encoder 34 to the rotary shaft 33. The housing 37 is connected to the tip of the piston rod 35 a of the cylinder 35. The length measuring roll 32 does not interfere with the raising and lowering of the mold 1 in the state where the stroke is at the origin, and the length measuring device 31 is not specifically shown, but the cylinder 35 is not shown. Is attached to the base frame 21 on the next process (for example, the cord winding process) side.
[0020]
Further, as shown in FIGS. 7A and 7B, the length measuring device 31 outputs the outer peripheral length of the mold 1 to the comparison means 42 as a peripheral length signal. In addition to the circumference signal, the comparison means 42 is also inputted with the circumference of the mold magnetically recorded in the magnetic recording means 5 and read by the recording / reading means 41. Therefore, it is confirmed that the size of the mold 1 currently being conveyed matches the size of the recognized mold 1 and that there is no error in recognition. The result of the comparison is output to the notification means 43, and if there is no mistake in the mold 1, a notification that there is no error in the recognition (display that the mold matches) is reported. If there is a mistake, an alarm (for example, an abnormal buzzer) is issued and the line is stopped to notify the operator.
[0021]
If there is no mistake in the mold, the canvas information (for example, the takeout position of the canvas shelf) to be used for the mold read from the magnetic recording means 5 is also notified. In this case, it is also possible to issue an alarm when an operator takes the wrong take-out position of the canvas shelf and opens another take-out lid.
[0022]
Next, the operation of the manufacturing system will be described.
[0023]
First, the mold 1 preliminarily applied with the release agent from the previous process is conveyed onto the second frame 19 in a state of being rotatably disposed on the conveyance base 4, The mold 1 is positioned. That is, a sensor (not shown) detects the transport base 4 and stops the operation of the transport conveyor means 2.
[0024]
Thereafter, the cylinder means 18 is extended to engage the clamp portion 13 with the lower engagement portion 1b of the mold 1, and the cylinder means 18 is further extended to move the mold 1 together with its conveyance base 4. The engagement shaft portion 12 is engaged with the upper engagement portion 1a of the mold 1 and clamped by a predetermined amount.
[0025]
After the clamp coupling is completed, the mold 1 is lowered in the transport direction by an angle corresponding to approximately 90 °. This lodging is performed by the hydraulic cylinder means 25.
[0026]
First, as described above, as shown in FIG. 7, the length measurement of the length measuring device 31 is performed in the lying down state for the purpose of surely avoiding the wrong insertion of the mold 1 and the wrong insertion of the canvas. The roll 32 is brought into contact with the mold 1, the mold is rotated approximately once, the outer peripheral length of the mold 1 is measured, and the size of the mold recognized as the size of the mold being conveyed Is confirmed using the magnetic recording means 5. That is, the circumference of the mold 1 recorded in the magnetic recording means 5 by the recording / reading device 41 and the canvas information to be used for the mold 1 are read, and the outer circumference of the mold 1 measured by the length measuring device 31 is read. If the comparison is made by the comparison means 42 and there is no error in the recognition of the mold 1, a display to that effect and the canvas information to be used for the mold 1 are displayed and notified by the notification means 43. Also, if there is an error, the operator is notified by an alarm.
[0027]
After completion of the length measurement, the length measurement roll 32 moves backward, and accordingly, the clamp coupling between the engagement shaft portion 12 and the upper engagement portion 1a of the mold is released.
[0028]
Then, the mold 1 is turned to the side by about 40 ° toward the worker so that the worker can easily insert the canvas. After this turning, the canvas is inserted into the mold 1 in this state.
[0029]
After inserting the canvas, the mold 1 is turned back in the opposite direction so as to be in the original position, is engaged with the engagement shaft portion 12 again, the mold 1 is rotated once, and the canvas end surface in the mold 1 is restored. Perform position alignment.
[0030]
And the metal mold | die 1 is stood up, positioning on the roller conveyor means 17 is performed, and a metal mold | die is conveyed to a cord winding process. These operations are started when an operator presses a mold discharge switch (not shown) after the canvas insertion operation is completed. Moreover, the turning of the mold 1 after the canvas insertion is completed and the rotation of the mold for aligning the canvas end surface are manually operated by a push button switch or the like.
[0031]
【The invention's effect】
According to the first aspect of the present invention, as described above, when the canvas is inserted around the transmission belt molding die, the circumference of the die is measured by the length measuring means, and is stored in the storage pocket portion of the conveyance base. Since the circumference of the mold is read by the reading means from the magnetic recording means, the data of both mold circumferences are compared by the comparison means, and the presence / absence of the matching of the molds is notified by the notification means. This makes it possible to reliably prevent mold recognition errors.
[0032]
According to the second aspect of the present invention, the canvas information recorded in the magnetic recording means is read by the reading means, and the notification means informs the canvas to be used for the mold, so that the operator should use it for the mold. The canvas can be grasped reliably, and the mistake of the canvas can be eliminated.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a V-ribbed belt manufacturing system according to the present invention.
FIG. 2 is a cross-sectional view showing a schematic configuration of a mold according to the present invention.
3A and 3B show a conveyance base according to the present invention, in which FIG. 3A is a partial plan view, and FIG. 3B is a partial front view.
FIG. 4 is a schematic configuration diagram of a mold clamping station according to the present invention, showing a state in which the axis of the mold is in a first position in the vertical direction.
FIG. 5 is a schematic configuration diagram of the station, showing a state where the axis of the mold is in a second position in the horizontal direction.
FIG. 6 is a schematic cross-sectional view of a length measuring device.
7A and 7B are explanatory diagrams of the operation, in which FIG. 7A is a plan view and FIG. 7B is a front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Metal mold | die 2 Conveyor means 4 Conveyance base 4a Storage pocket part 5 Magnetic recording means 31 Length measuring device 41 Recording reader 42 Comparing means 43 Notification means

Claims (2)

A production management system in a transmission belt production line for manufacturing a transmission belt by inserting a reinforcing canvas around a transmission belt molding die,
A magnetic recording means that is conveyed together with each of the transmission belt molding dies and in which mold information about each of the dies is magnetically recorded;
A transport base having a storage pocket portion in which the transmission belt molding die is placed and the magnetic recording means corresponding to the placed transmission belt molding die is detachably stored;
A length measuring means for measuring a circumference of the mold when inserting a canvas into the transmission belt molding mold;
Reading means for reading the circumference of the mold from the magnetic recording means;
A comparison means for receiving signals from the length measuring means and the reading means and comparing the measured circumference of the mold with the circumference of the mold recorded in the magnetic recording means;
A production management system in a transmission belt production line, comprising: a notification means for receiving a signal from the comparison means and notifying the presence or absence of matching of the dies. The magnetic recording means is for magnetically recording canvas information to be used for the mold,
The reading means reads canvas information to be used for a mold from the magnetic recording means,
2. The production management system for a transmission belt production line according to claim 1, wherein the notification means notifies a canvas to be used for a mold.

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