JPH0514816U - Multi-wire outer diameter measuring device - Google Patents

Abstract

(57) [Abstract] [Purpose] Using one laser scanner to automatically measure the outer diameters of multiple wires being transferred in parallel with high accuracy, reliability and efficiency. An object of the present invention is to provide a multi-wire outer diameter measuring device capable of performing. A wire rod feeding means and a laser scanner 5 are arranged above and below the wire rod so as to face each other, and are supported by an upper linear actuator and a lower linear actuator so as to be capable of reciprocating in a direction traversing the wire rod. .. Positioning guide rollers 10a and 10b with concave grooves are integrally arranged in the laser scanner 5, and the guide rod guides the measurement area of the laser scanner 5 and vertically vibrates the wire rod 1d. The rollers 10a, 10b are brought into contact with the concave grooves and positioned.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outer diameter measuring device for automatically measuring the outer diameter of each of a plurality of wire rods being transferred in parallel, and particularly to an enamel coating in the manufacturing process of an enamel-coated copper wire. It can be suitably used as an outer diameter measuring device for measuring the outer diameter of a wire after enamel coating in order to control the thickness.

[0002]

[Prior Art]

 For example, the outer diameter of an enamel-coated copper wire is required to be maintained with extremely high accuracy, and therefore the enamel coating thickness needs to be accurately measured and controlled in the manufacturing process of an enamel-coated copper wire. is there. Therefore, the outer diameter of the enamel-coated wire rod is measured in the moving state, and its quality is measured.

Japanese Patent Application No. 1-319098, filed by the applicant of the present invention, is capable of automatically and reliably measuring the outer diameters of a plurality of wire rods that are being transferred in parallel, and has a manufacturing process. Strike teaches an inexpensive multi-wire outer diameter measuring device. The structure of the outer diameter measuring device will be briefly described with reference to FIGS. 9 and 10.

In this multi-wire outer diameter measuring device, a wire rod feeding means 4 and a laser scanner 5 face each other in a direction orthogonal to a transfer plane (pass line) H formed by a plurality of transferred wire rods 1a to 1g. Will be placed. The wire rod feeding means 4 and the laser scanner 5 are synchronously moved by the linear actuators 2 and 3 in a direction traversing the plurality of wire rods, respectively. Further, the wire rod feeding means is provided with a pair of guide rollers 4a, 4b which are arranged so as to coincide with the transfer direction of the respective wire rods 1a to 1g and which can contact the respective wire rods at two positions. The pair of guide rollers 4a and 4b move downward when the feeding means 4 is pushed down by the air cylinder 6 and come into contact with one selected wire rod. Further, by moving the guide rollers 4a and 4b downward, the selected wire rods are guided and guided by the guide rollers 4a and 4b to the measuring portions 5a and 5b of the laser scanner 5, and thereby, The outer diameter of the wire is measured.

[0005]

[Problems to be solved by the device]

 As described above, the multi-wire outer diameter measuring device having the above-mentioned configuration uses one laser scanner 5 to perform optical axis alignment of the laser emitting section 5a and the light receiving section 5b in the measuring section with high accuracy. The outer diameters of multiple wires that are transferred in parallel can be automatically and reliably measured, and the manufacturing cost is low. According to the results, it was found that there are the following problems.

That is, in the above-mentioned outer diameter measuring device, as described above, the wire rod feeding means 4 has a pair of guide rollers 4a and 4b capable of contacting each wire rod at two locations. The guide rollers 4a and 4b are moved up and down by the air cylinder 6 to guide the wire into the measurement area of the laser scanner 5. In the measuring parts 5a and 5b of the laser scanner 5, in order to ensure the measurement accuracy, the wire rod should be placed within a range of several mm × several mm in the vertical and horizontal directions, and most strictly within a range of 2 mm × 2 mm. Is required. Therefore, the two guide rollers 4a and 4b must be operated extremely accurately by the air cylinder 6.

However, the wire rod guided to the measurement area of the laser scanner 5 by the two guide rollers 4a and 4b is, for example, the fluctuation of the tension of the wire rod, the running resistance in the enamel bath, and the drying oven. It was found that the wire rod vibrates upward and downward as shown in FIG. 10 with the contact point with the guide rollers 4a and 4b as a fulcrum due to the expansion of the wire rod and the backlash of the wire rod driving capstan.

As described above, when the wire rod vibrates, the wire rod may deviate from the measurement region of the measuring portions 5a and 5b of the laser scanner 5 and measurement may not be performed. For example, even if the wire rod is within the measurement area of the laser scanner 5, vibration causes the wire rod to move up and down at the measurement point, resulting in a measurement error.

Therefore, an object of the present invention is to use one laser scanner to automatically and accurately determine the outer diameters of a plurality of wire rods that are being transferred in parallel, with high accuracy, reliability, and efficiency. An object of the present invention is to provide a multi-wire outer diameter measuring device capable of measuring.

[0010]

[Means for Solving the Problems]

 The above object is achieved by the multi-wire outer diameter measuring device according to the present invention. In summary, the present invention relates to (a) a wire rod feeding means and a laser scanner which are arranged to face each other in a direction orthogonal to a transfer plane formed by a plurality of wire rods being transferred, and (b) the wire rod feeding means and Linear actuators that move the laser scanners in a direction that traverses the plurality of wire rods in synchronization with each other, (c) are arranged in line with the transfer direction of each wire rod, and contact each wire rod at two locations. A pair of guide rollers, which can be brought into contact with each other, are provided in the wire feeding means, (d) the pair of guide rollers are driven toward one selected wire, and the guide rollers Driving means provided in the wire rod feeding means for guiding the wire rod to the measuring section of the laser scanner to measure the outer diameter of the wire rod, and (e) the pair of guide rollers. A pair of grooved positioning guide rollers attached to the laser scanner to prevent vertical vibration of the wire rod by abutting on the wire rod guided to the measuring section of the laser scanner at two positions, A multi-wire outer diameter measuring device having:

According to one aspect of the present invention, the positioning guide roller with the concave groove is rotatably attached to the laser scanner, and can be brought into and out of contact with the wire by driving the laser scanner with a linear actuator. It According to another aspect, the positioning guide roller with the concave groove is attached to the laser scanner via the air cylinder, and can be brought into and out of contact with the wire rod by driving the air cylinder.

[0012]

Embodiment An embodiment of the multi-wire outer diameter measuring device according to the present invention will be specifically described below with reference to the drawings.

In the present embodiment, the present invention is embodied as an outer diameter measuring device for measuring the outer diameter of a wire after enamel coating in order to control the coating thickness of the enamel in the manufacturing process of the enamel coated copper wire. The embodiment will be described.

Referring to FIGS. 1 and 2, a plurality of enamel-coated and baked enamel-coated copper wires 1 (1 a to 1 g) in this embodiment are arranged in parallel, and a predetermined speed is applied. It has been transferred horizontally in degrees.

A path line formed by the wire rods 1 a to 1 g, that is, in a direction orthogonal to the transfer plane H, that is, in the present embodiment, above and below the wire rods 1 a to 1 g, a wire rod feeding means 4 and a laser scanner 5, respectively. Are opposed to each other, and the wire feeding means 4 and the laser scanner 5 can be reciprocated in a direction traversing the wires 1a to 1g by an upper linear actuator 2 and a lower linear actuator 3, respectively. It is carried by. The linear actuators 2 and 3 are attached to the fixed frame 100.

More specifically, the wire rod feeding means 4 is provided with a pair of grooved guide rollers 4a and 4b arranged in line with the wire rod transfer direction, and the guide rollers 4a and 4b are provided. , Is rotatably attached to the support member 4c via the support legs 4d. Further, the support member 4c is internally held by the frame 4e via a guide shaft 4f so as to be vertically movable, and is vertically driven by a driving means 6 attached to the frame 4e. In this embodiment, the driving means 6 is an air cylinder, and the support member 4c is connected to the operating part 6a of the air cylinder 6.

Therefore, when the air cylinder 6 is actuated, the pair of guide rollers 4a and 4b move toward one arbitrary wire rod and come into contact with the wire rod at two spaced positions, As shown in FIG. 2, the wire rod is moved downward in a tensioned state, and is fed to a measuring unit provided with a laser light emitting unit 5a and a light receiving unit 5b of the laser scanner 5.

The frame 4e is attached to a guide head 2b which is driven along a drive guide shaft 2a extending in the horizontal direction of the upper linear actuator 2. Therefore, when the driving guide shaft 2a is driven, the guide head 2b, that is, the wire rod feeding means 4, is moved in a direction traversing the wire rods 1a to 1h and stopped on the desired wire rod.

On the other hand, like the upper linear actuator 2, the lower linear actuator having a structure including a drive guide shaft 3a and a guide head 3b which is drive-controlled by the drive guide shaft 3a. As described above, the laser scanner 5 provided with the measuring unit 3 includes the laser light emitting unit 5a and the light receiving unit 5b that face each other on the left and right. The laser scanner 5 is driven and controlled by the lower linear actuator 3 so as to move synchronously in the same direction and by the same distance so that the relative position of the wire rod feeding means 4 does not change.

With the above-described configuration, as shown in FIGS. 1 and 2, the wire rod feeding device 4 and the laser scanner 5 are synchronized by the linear actuators 2 and 3, and the required wire rod, for example, the wire rod 1d in this embodiment. Move to the position corresponding to and stop.

In this state, the air cylinder 6 of the wire rod feeding means 4 operates and the guide rollers 4a and 4b descend. As a result, the wire rod 1d is guided and guided by the guide rollers 4a and 4b to the measuring units 5a and 5b of the laser scanner 5.

According to the present invention, the laser scanner 5 is integrally provided with the positioning guide rollers 10a, 10b.

To further explain, the positioning guide rollers 10a and 10b are arranged horizontally opposite to each other around the optical axis connecting the measuring units 5a and 5b of the laser scanner 5. That is, as will be better understood with reference to FIGS. 3 to 6, the guide rollers 10a, 10b are provided with, for example, V-shaped concave grooves on their peripheral surfaces, and are mounted on the base of the laser scanner 5 or the like. The rotary shafts 12a and 12b are respectively rotatably attached.

Therefore, as shown in FIGS. 3 and 4, when the laser scanner 5 is driven in the direction of the arrow by the lower linear actuator 3, as shown in FIGS. 5 and 6, the positioning guide roller 10a is moved. 10b also moves in the direction of the wire rod 1d together with the laser scanner 5. As a result, the wire rod 1d guided by the two guide rollers 4a and 4b to the measurement area of the laser scanner 5 and vibrating in the vertical direction has the concave groove of the positioning guide rollers 10a and 10b changed to the wire rod 1d. Abut. Further, by moving the positioning guide rollers 10a and 10b, the wire rod 1d is guided into the bottom surface of the concave groove of the guide roller, thereby preventing the vibration of the wire rod 1d and stopping the movement of the guide rollers 10a and 10b. Positioned in place by. At this time, the centers of the bottom surfaces of the concave grooves of the positioning guide rollers 10a and 10b are formed so as to substantially coincide with the optical axes of the measuring portions 5a and 5b. That is, the wire rod 1d is positioned and guided by the two positioning guide rollers 10a and 10b so as not to vibrate, and to pass through the optical axis positions of the measuring portions 5a and 5b of the laser scanner 5.

Therefore, according to the present invention, the wire rod 1d is prevented from vibrating by the positioning guide rollers 10a and 10b, and is accurately fed into the measurement area of the measuring portions 5a and 5b of the laser scanner 5, and its outer diameter is set to the laser scanner. The laser light emitting section 5a and the light receiving section 5b of No. 5 measure with high accuracy. In the present invention, the occurrence of the measurement error caused by the vibration of the wire rod in the laser scanner measuring parts 5a and 5b, which is found in the conventional device, is eliminated.

Next, when the measurement of the wire rod 1d is completed, first, the laser scanner 5 is moved by the lower linear actuator 3 in the direction opposite to the above direction so that the positioning guide rollers 10a and 10b move away from the wire rod. ,Stop. Then, the air cylinder 6 operates to raise the guide rollers 4a and 4b to the positions shown by the solid lines in FIG. 1 and move them to a position separated from the wire rod 1d upward, that is, above the wire transfer plane H. .. Subsequently, the wire rod feeding means 4 and the laser scanner 5 are synchronously moved to the position corresponding to the next wire rod, for example, the wire rod 1c by the linear actuators 2 and 3, and the wire rod 1c is moved in the same manner as described above. The outer diameter of is measured. After that, the outer diameter of each wire is automatically measured in the same manner.

In this way, the measurement result of the outer diameter of each wire which is sequentially measured is processed by a computer, and when there is a core wire extension or an outer diameter abnormality, the manufacturing is stopped or You can display the location and print it out at any time.

In the present embodiment, the leather scanner 5 is a product name “SM-75005 outer diameter measuring instrument” manufactured by Mitutoyo Co., Ltd., and the linear actuators 2 and 3 are product names “COMPO Good results have been obtained using "arms" but are not limited thereto.

7 and 8 show another embodiment of the present invention.

In the above embodiment, the positioning guide rollers 10a and 10b are integrally provided on the laser scanner 5, and are rotatably supported by the rotary shafts 12a and 12b planted on the base of the laser scanner 5, and the laser scanner 5 By driving the lower linear actuator 3, it is possible to separate from and contact the wire rod. According to this embodiment, the positioning guide rollers 10a and 10b are respectively the air cylinder 13a, which is the driving means. It is integrally provided on both sides of the laser scanner 5 via 13b.

More specifically, in this embodiment, the positioning guide rollers 10a and 10b are rotatably attached to the holders 16a and 16b attached to the tips of the pistons 14a and 14b of the air cylinders 13a and 13b.

Therefore, according to the present embodiment, the air cylinder 6 is actuated, and the guide roller 4a, 4b is used to measure, for example, the wire rod 1d and the measuring portion provided with the laser emitting portion 5a and the light receiving portion 5b of the laser scanner 5. Then, the air cylinders 13a and 13b are actuated, and the pistons 14a and 14b move the positioning guide rollers 10a and 10b toward the wire rod 1d. As a result, similarly to the above-described embodiment, the positioning guide rollers 10a and 10b contact the wire rod 1d at two locations, the vibration of the wire rod 1d is prevented, and the wire rod 1d does not vibrate and its outer diameter is that of the laser scanner 5. It is measured by the laser light emitting unit 5a and the light receiving unit 5b.

When the measurement is completed, the air cylinders 13a and 13b are operated to retract the pistons 14a and 14b to separate the positioning guide rollers 10a and 10b from the wire 1d, and then the air cylinder 6 is operated to operate the guide rollers. 4a and 4b are lifted and moved upward from the wire transfer plane H. Subsequently, the wire rod feeding means 4 and the laser scanner 5 are synchronously moved by the linear actuators 2 and 3 to the position corresponding to the next wire rod, for example, the wire rod 1c, and in the same manner as described above, outside the wire rod 1c. Measure the diameter. After that, the outer diameter of each wire is automatically measured in the same way.

[0034]

[Effect of the device]

 As described in detail above, the present invention prevents vibration of the wire rod by abutting the wire guided by the pair of guide rollers to the measuring section of the laser scanner by the pair of positioning guide rollers provided in the laser scanner. Since the outer diameter of the wire is measured, the outer diameter of the multi-wire can be measured with high accuracy, which is extremely useful in practice.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a multi-wire outer diameter measuring device according to the present invention.

2 is a side view of the multi-wire outer diameter measuring device of FIG. 1. FIG.

FIG. 3 is a perspective view of a positioning guide roller.

FIG. 4 is a front view of a positioning guide roller.

FIG. 5 is a perspective view of a positioning guide roller.

FIG. 6 is a front view of a positioning guide roller.

FIG. 7 is a front view of another embodiment of the multi-wire outer diameter measuring device according to the present invention.

8 is a side view of the multi-wire outer diameter measuring device of FIG. 7. FIG.

FIG. 9 is a front view of a conventional multi-wire outer diameter measuring device.

FIG. 10 is a side view of a conventional multi-wire outer diameter measuring device.

[Explanation of symbols]

 1a to 1g Wire rod 2, 3 Linear actuator 4 Wire rod feeding means 4a, 4b Guide roller 5 Laser scanner 6 Driving means (air cylinder) 10a, 10b Positioning guide rollers 13a, 13b Driving means (air cylinder)

Claims (1)

[Scope of utility model registration request] 1. A wire rod feeding means and a laser scanner, which are arranged to face each other in a direction orthogonal to a transport plane formed by a plurality of wire rods being transported, and (b) the wire rod feeding means and the laser scanner are synchronized with each other. A linear actuator for moving the plurality of wire rods in a direction traversing each of the wire rods, and (c) the wire rods arranged so as to coincide with the transfer direction of each wire rod and capable of contacting each wire rod at two locations. A pair of guide rollers provided in the feeding means, (d) the pair of guide rollers are driven toward the selected one wire rod, and the guide roller guides the wire rod to the measuring section of the laser scanner. Drive means provided in the wire rod feeding means for guiding to the outer diameter of the wire rod and being guided by the pair of guide rollers. A pair of concave grooved positioning guide rollers abutting at two points on the wire guided to the measuring section of the laser scanner and attached to the laser scanner to prevent vertical vibration of the wire. Characteristic multi-wire outer diameter measuring device.