JPS5917630Y2 - marking device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the provision of an apparatus for automatically marking identification marks on articles flowing through a conveyance/movement line.

For example, in the manufacturing process of rolled wire rods, visual inspection of wire rod products is essential.

In other words, products with rough edges, edges, rolls, roller eaves, and other defects must be detected early and reported to the rolling work site for immediate treatment. Coiled wire rods flow one after another onto the conveyor.

The problem is that the coiled wire rods do not flow from the same rolling mill line, but are generally sent out alternately from two rolling mill lines, such as the A rolling mill line and the BPE rolling mill line, and are sent out from two rolling mill lines alternately. Above, the wire rod products from the side rolling mill line are lined up alternately, such as the A-line coiled wire rod, the B-line coiled wire rod, and the A-line coiled wire rod again. ,
Since it is not possible to determine whether the found defective product came from rolling mill line A or rolling mill line B, the only thing that can be done is to notify the rolling operation management of the defect details.

For this reason, it is impossible for the rolling operation management side that is contacted to immediately determine which rolling mill line the product came from, and sometimes they have to temporarily stop the operation of rolling lines that are not needed. Things like this can easily happen.

In order to eliminate such trouble and confusion, conventionally, when a defective product is found on the visual inspection line, the conveyor used is a hook conveyor, which transports the product by hanging it on a hook. If the defective product is hung, check whether the hook number on which it is hung is an even number or an odd number, check this against the number list on the hook conveyor, and notify the operator of the winding machine line that forms the coiled wire. , the hook numbers for hanging rolled products from rolling mill line A and rolling mill line B are checked, and if the defective product is A,
B This is because it determines which rolling mill line the wires come from, or the positions of the coiled wires placed on the conveyor are not aligned in a straight line, but are alternately offset to the left and right of the center line in a staggered manner. If they are loaded close together, it can be determined by the position, but in any case, these methods of determination take time, and the operation may be interrupted due to misrolls, adjustments, etc. on either the A or B rolling mill line. When the product stops, the order of odd and even numbers and the staggered alternating positions are also thrown out of order, making it impossible to distinguish between them. This is not sufficient to solve the problem because it causes anxiety and turmoil in the rolling mill line.

The present invention solves this difficulty in product identification, and of course is not limited to the case of the wire products mentioned above as an example.
It is designed to automatically, reliably and easily mark products that are produced on different production lines and are automatically transported on the same transport line, and therefore to distinguish between their characteristics. The device is equipped with a cylindrical body that holds a marking member therein and has an opening connected to an operation cylinder, a feed roller that clamps the marking member at the opening of the cylindrical body, and the cylindrical body and the feed roller. It consists of a pedestal that is movable on the floor and a drive mechanism that rotates the feed roller in only one direction.

The device of the present invention will be described in detail below based on the illustrated embodiment. Fig. 1 shows the device of the present invention for the coiled wire product described above.
This is an example of the arrangement where the A and B rolling mill lines are manufactured, and the products are loaded on a common conveyor alternately to one A line and one B line and transported. In the same figure, C is a conveyor, A, A is a coiled wire fed from the A rolling mill line to one side of the conveyor C, B, B is a coiled wire rod fed from the B rolling mill line to the other side of the conveyor C. A central bushing 1 serves as a member for transferring coiled wire rods onto the conveyor C, and a sand bushing 1a serves as a member that alternately pushes out the left and right wire rods A, A or B, B to the central thread 251 position. 1a are arranged respectively, and the conveyor C moves forward intermittently for one pitch, and stops at the transfer position, and at the same time, the conveyor C is pushed out by either the left or right side pushers 1a to the central gear 251 position on the A line side, for example. The wire rod A is placed on the conveyor C as shown in the figure, and then the conveyor C advances one pitch and stops, and the wire rod pushed out by either the left or right side pushers 1a is placed at the central gutter 251 position on the B line side. B is conveyor C
The coiled wires A and B from the A line and B line sides are placed alternately on the conveyor C so that they are placed on top of the conveyor C, and D is the device of the present invention, and in the example shown, B Required marks are marked on the wire B on the line side at the extrusion position by the central bushing 1.

Fig. 2 is a plan view of the device of the present invention; Fig. 3. 4. 5 shows the details of each main part, but in the device of the present invention, the air cylinder 4 is installed on the base 9 as shown in the figure, and the rod 10 of the cylinder 4 is connected to the wheel on the base 9. 1
A movable pedestal 12 is connected to the pedestal 12 via the frame 1, and a cylindrical body 13 is installed in parallel on the upper surface of the pedestal 12 via a support bracket 14, etc., and a marking member such as rubber chalk is attached to the cylindrical body 13. 8 is slidably inserted,
In the middle of the cylindrical body 13, there is an opening 15 at a symmetrical position on the upper and lower circumferential surfaces.
15 to expose the marking member 8, and the feed roller 6 of the marking member 8 is positioned above the opening 15 on the upper circumferential surface so as to directly contact the circumferential surface of the marking member 8, A presser roller 16 is positioned in the opening 15 of the marking member 8, and is brought into direct contact with the circumferential surface of the marking member 8. The feed roller 6 is rotatably mounted on a shaft through the feed roller 6, and is configured to rotate only in one direction. As an example is shown in FIGS. 4 and 5, the drive wheel 5 is provided at the other end of the shaft 18, for example, via a free joint mechanism.

That is, although not shown, a pawl is pivotally attached to the outer periphery of a disk fixed to the other end of the shaft 18, and the removal side is elastically supported by a spring, and ratchet teeth are provided on the inner periphery of the drive wheel 5 surrounding this disk. is formed to engage the tip of the claw.

Therefore, when the drive wheel 5 is rotated in one direction, the disk or shaft 18 is rotated through the pawl, but when the drive wheel 5 is rotated in the opposite direction, it is in an idle state and the shaft 18 is rotated. As a result, the feed roller 6 is rotated only in one direction. In the illustrated example, the feed roller 6 is rotated in conjunction only when rotating in the arrow direction, and the feed roller 6 is rotated in the opposite direction. During rotation, the feed roller 6 is held in a stopped state, but the drive mechanism for this one-way rotation does not have to be a ratchet and a pawl; instead, a triangular notch is formed between the driving wheel 5 and the disc. However, a type in which a spring-loaded steel ball is inserted into the notch is also equally effective.

As a rotation mechanism for the drive wheel 5, in the illustrated example, a mounting wall is provided using a part of the base 9 so that the cylinder 4 moves the frame 12 forward and backward with respect to the circumferential surface of the wire B. Adjustably attach the adjusting screw 20 to 19,
A sliding plate 7 made of a rubber plate or the like is mounted on a base 21 connected and held to one end of the screw punch 20, parallel to the pedestal 12, with one end supported by a pivot 22, and the other end of the sliding plate 7 spring 23
The upper surface of the sliding plate 7 and the circumferential surface of the drive wheel 5 are pressed against each other by being resiliently supported.

At this time, an uneven surface such as a gear tooth surface may be formed on the drive wheel 5 in order to ensure contact transmission with the sliding plate 7 in the same drawing.

According to such a drive mechanism, when the cylinder 4 is actuated, the pedestal 12 advances toward the circumferential side of the coiled wire B via the rod 10, and the drive wheel 5 also moves together with the pedestal 12, and at this time the spring 23, the sliding plate 7 is in pressure contact with the circumferential surface of the drive wheel 5, so the driving wheel 5 is moved in the direction opposite to the direction of the arrow in FIG. Since rotation in the direction is given, the rotation of the drive wheel 5 at this time is due to the presence of a unidirectional rotation mechanism such as a free joint mechanism.
It is not transmitted to the shaft 18, and the feed roller 6 remains in a stopped state.

On the other hand, when the pedestal 12 retreats from the circumferential surface of the wire B, the drive wheel 5 moves backward on the sliding plate 7 from the pivot 22 side toward the spring 23 side as the pedestal 12 retreats.
Rotation in the direction of the arrow is applied through contact with the sliding plate 7, and at this time, the shaft 18 is interlocked via a one-way rotation mechanism,
The feed roller 6 is rotated in conjunction with the cylindrical body 1.
The marking member 8 in the cylindrical body 13 is driven in the feeding direction between the presser roller 16 and the marking member 8 in the cylindrical body 13.
In other words, the feed roller 6 transfers the marking member 8 consumed by marking the mark to the cylindrical body by the necessary amount in advance when the pedestal 12 moves backward in preparation for the next marking. 13, and the length of the protrusion at this time depends on the movement of the base 21 due to the movement of the adjustment screw 20, that is, the relationship between the sliding plate 7 and the driving wheel 5. Depending on the front and rear positions, the desired result can be obtained.

In the embodiment, friction transmission through pressure contact with the sliding plate 7 was used as the drive mechanism for imparting rotation to the drive wheel 5.
The same effect can be obtained even if the driving wheels 5 are of a pinion gear type and a rack plate is used instead of the sliding plate 7 for meshing.

Further, the presser roller 16 shown in FIG.
The marking member 8 is mounted on a shaft so as to be freely rotatable, and the degree of pressure contact with the marking member 8 can be adjusted as desired.

Marking by the marking member 8 on the circumferential outer surface of the coiled wire B by the apparatus of the present invention is performed as follows.

That is, in FIG. 2, the central busher 1 moves to the pushing operation with respect to the coiled wire B which is at the push-out transfer position with respect to the conveyor C, and in the illustrated example, the striker 26 attached to this busher 1 moves forward together with the limit switch. I will be moving away from 2.

This limit switch 2 is a switch that pushes the manual operation button of the operation switching valve 3 of the air cylinder 4 to the OFF position through the engagement of the striker 26. Therefore, as the striker 26 is released, the limit switch The operating button of the switching valve 3, which had been pushed to the OFF position by 2, automatically returns to the ON position, the cylinder 4 is activated, and its rod 10 moves forward to move the mount 12 toward the circumferential side of the wire B. Therefore, the cylindrical body 1 on the pedestal 12
A marking member 8 built into the coil wire B and protruding from the tip of the cylindrical body is pushed out onto the circumferential outer surface of the wire B, and this pressing timing may be at the same time as the bushing 1 reaches the outer circumferential surface of the coil wire B or slightly earlier. However, by this pressure contact, the protruding portion of the marking member 8 is attached and marked on the outer peripheral surface of the wire B, and is also pushed into the same plane as the open end surface of the cylindrical body 13 and marked.

When center button 1 retreats to its original position, striker 2
6, the limit switch 2 is hit and the manual operation button of the switching valve 3 is pressed again, so the counter movement of the cylinder 4 causes the frame 12 and the cylindrical body 13 to begin to return to the previous position.

In addition, during the marking operation, the driving wheel 5 also moves forward on the sliding plate 7 as the gantry 12 moves forward, but the rotation direction of the driving wheel 5 at this time is as shown in FIG. The feed roller 6 stops idly rotating in the direction opposite to the arrow, but as the mount 12 moves backward, the friction rotation of the drive wheel 5 with the friction plate 7 rotates in the direction of the arrow. Therefore, along with this backward movement, the feed roller 6 is interlocked via the shaft 18, so that the marking member 8 is sent out, and the marking member 8 is again placed a predetermined length below the opening end of the cylinder body 13. The wire rod B thus marked is transferred onto the conveyor C via the pusher 1, the pusher 1 retreats, and the striker 2
6 completes the locking of the limit switch 2, and then waits until the coiled wire B reaches the extrusion position.

The device of the present invention is as described above, and in the case of the embodiment, the coiled wire A from the A rolling mill line side conveyed on the same conveyor C and the coiled wire B from the B rolling mill line side are transported on the same conveyor C. The intended identification mark can be automatically marked only on one line, wire rod B. Therefore, when inspecting the appearance of wire rod products on this conveyance line, it is possible to determine which line the defective product is from. This can be done extremely easily, and by quickly and accurately identifying defective products, it is possible to easily investigate the cause and make adjustments on the production line side, and prevent the continuous occurrence of defective products. The presence of such marks also helps prevent contamination of foreign materials.

The device of the present invention places a marking member 8 such as rubber chalk on a cylindrical body 1 on a movable pedestal 12 in order to mark the mark.
3, which is exposed from the tip of the cylindrical body, and is crimped to mark the circumferential surface of the target article, so the mark can be engraved very reliably and there is no risk of the mark leaking out. In addition, the target article is not limited to just one as in the embodiment, and if the number of target articles is increased as necessary, it is possible to provide accurate discrimination for a larger number of articles, and the device itself is simple; It is extremely easy to operate, and the feed roller 6, which can only rotate in one direction, can accurately feed the appropriate amount of marking material 8 in preparation for consumption, allowing for continuous automatic marking. It is also excellent in its applicability.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of an example of a wire conveying device implementing the device of the present invention, Fig. 2 is a plan view of an embodiment of the device of the present invention, Fig. 3 is a side view of the same, Fig. 4 is a side view of the opposite side, and Fig. 4 is a side view of the same. FIG. 5 is a plan view of the main part of the marking member delivery.

Claims (1)

[Scope of utility model registration request] A cylindrical body that holds a marking member therein and has an opening connected to an operation cylinder, a feed roller that holds the marking member at the opening of the cylindrical body, and the cylindrical body and the feed roller that can be moved on the floor. 1. A marking device comprising: a stand; and a drive mechanism that rotates the feed roller in only one direction.