JP2020075284A - Fryer for straightening thin tubes and straightening method for thin tubes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fryer capable of remarkably reducing the disconnection of a thin pipe or a pipe having a small diameter and easily removing the remaining debris even when the thin pipe or the pipe is disconnected. SOLUTION: Rubber rollers 11 having grooves are arranged vertically to sandwich a thin tube or a small diameter pipe, and when the thin tube or the pipe passes, the upper roller and the lower roller rotate in the traveling direction, so that resistance is obtained. The structure is such that the thin tube or pipe does not come off from the roller pairs 4 and 5 even if it is rotated (rolled) in the direction perpendicular to the traveling direction, and a large number of rollers are arranged so that the thin tube or pipe can be twisted strongly. Use a fryer to straighten a thin tube or pipe. [Selection diagram] Fig. 1

Description

  The present invention relates to a thin tube or a machine for straightening the thin tube or a pipe supplied from a coil in which small-diameter pipes are bundled in order to manufacture an injection needle or a nozzle.

Conventionally, the structure of a straight line machine for straightening a thin tube or a small-diameter pipe is such that the thin tube or the pipe is passed through a rubber tube having a hole, and a weight is attached to one place near the center of the rubber tube to attach the rubber tube. By rotating and bending the rubber tube by centrifugal force, and pulling out the thin tube or the pipe while bending the thin tube or the pipe (hereinafter, referred to as "twisting"), the thin tube or the pipe is made straight (Fig. 2 to FIG. 4).
The invention of Patent Document “WO2012 / 099781” is an invention of a device for straightening a wire supplied from a coil, but the extent to which the wire is straightened by the device is a straight line required for an injection needle. Not enough as a degree.

WO2012 / 099781

In the conventional method of drawing a straight line using a rubber tube, a large resistance is applied to the three places (Fig. 4) bent by the centrifugal force of the weight (the rubber tube is pulled outward by the centrifugal force, so it is called a "flyer"). As a result, there is a problem that the thinner the thin tube or the smaller diameter pipe is, the easier the wire is broken.
Also, since it is a rubber tube containing carbon, there was a problem that the area around the fryer and the machine were stained black.
Further, there are problems such as a large consumption of the rubber tube, a long time to replace the rubber tube, a short life of the bearing, noise, and inability to continuously operate for a long time. ..

Therefore, instead of the rubber tube, as shown in FIGS. 5, 6 and 7, rubber rollers each having a groove are arranged vertically to sandwich the thin tube or the pipe.
As shown in FIG. 5 and FIG. 7, when the thin tube or the pipe passes, the upper roller and the lower roller rotate in the direction of arrow A (progress), so there is no resistance, and in the direction of arrow B ( Hereinafter, even if it is referred to as “rolling”), the structure is such that the thin tube or the pipe does not come off the roller. And, as compared with the case where a rubber tube is used, a fryer in which the roller pairs are arranged in multiple rows so that the thin tube or the pipe can be twisted more (because the thin tube or the pipe is pulled outward by centrifugal force, )) (C and D shown in FIG. 7 move to the outside) and straight out the thin tube or the pipe.

In a fryer that uses a conventional rubber tube to draw a straight line (hereinafter referred to as “rubber tube type fryer”), in order to prevent the thin tube or the small diameter pipe from being broken, as shown in FIG. I had to continue to apply oil to the small diameter pipe, but the disconnection did not disappear.
Further, when the rubber pipe type fryer is broken, fragments of the thin tube or the pipe often remain in the rubber pipe, and when a rubber tube containing fragments is used, the surface of the thin tube or the pipe is damaged and the product is damaged. It didn't. In addition, since the inside of the rubber tube cannot be seen, it is difficult to completely remove the piece, and therefore it had to be discarded every time the wire was broken. Further, it is necessary to replace the rubber tube each time one coil of the thin tube or the pipe is completed. Then, it was necessary to adjust the bending of the rubber tube every time the rubber tube was changed. When making this adjustment, the flyer should be stopped, but this was a work that had to be done several times until a stable straight line appeared, which took time.
In the roller type fryer of the present invention (hereinafter, referred to as “roller type fryer”), the breakage of a thin tube or a small diameter pipe is significantly reduced, and even if the narrow tube or the pipe is broken, all the rollers are visually inspected. Therefore, even if the debris remains, there is an advantage that it can be easily removed. Further, since the thin tube or the straight line of the pipe can be stably output even if the debris is removed and the system is activated, there is an advantage that adjustment like a rubber tube type fryer is not necessary. Further, even if one coil of the thin tube or the pipe is restarted and then restarted, there is an advantage that no adjustment is necessary after the startup unless the thickness or wall thickness of the thin tube or the pipe is changed.

  Moreover, since the rubber tube containing carbon is not used, the fryer and the machine will not be stained black.

Conventional rubber tube type fryer rotates with a weight in one direction as shown in Fig. 3, even if the rubber tube is bent by centrifugal force. Had a short life.
In FIG. 1 of the embodiment of the present invention, as shown in FIG. 7, the roller type fryer has the same arrangement with the rollers in the second row (C in FIG. 7) and the fourth row (D in FIG. 7) always facing each other. Since it is a mechanism that moves in the direction of the arrow while maintaining the moving length, the balance when rotating is much improved compared to a rubber tube type fryer, and the life of the bearing can be extended.

  Further, the roller type fryer of the present invention is more compact than the conventional rubber tube type fryer, the weight protruding outward is eliminated, and the twisting force of the rollers in multiple rows is further improved. In the roller type fryer, the straight line of the thin tube or the pipe comes out when the number of rotations is three-fourth that of the rubber tube type fryer, and the noise can be reduced.

  In the conventional rubber tube type fryer, heat is generated because the three points shown in FIG. 4 are constantly receiving resistance, and the rubber tube is consumed quickly. However, in the roller type fryer of the present invention, a plurality of rollers are used. Dispersing the portion receiving the resistance of the thin tube or the small-diameter pipe, and the roller rotates along the movement of the thin tube or the pipe, so that the outer circumference of the roller uniformly hits the thin tube or the pipe, and The generated heat is also dispersed, so the wear of the rubber roller is extremely less than that of the rubber tube of the rubber tube type fryer, which enables long-term continuous operation and long-term use, which reduces running costs. Can also be done.

  The rubber tube of the rubber tube type fryer had to be replaced for each coil of a thin tube or a minute tube, but the life of the rubber roller of the roller type fryer was significantly extended. Further, there is an advantage that it is not necessary to apply oil in the roller type fryer, while it is necessary to apply oil in the rubber tube type fryer.

It is a top view of the Example of the fryer which connected the roller pair unit of 5 rows to the rotating shaft 1 of FIG. In the prior art, a state in which a thin tube or a small diameter pipe is passed through a rubber tube is shown. The state which the said rubber pipe shown in FIG. 2 was bent by the centrifugal force of a weight (the said thin pipe or the said pipe was twisted) is shown. FIG. 4 shows three bent portions to which a large resistance is applied when the rubber tube shown in FIG. 3 is bent (the fryer is not shown). FIG. 3 is a view conceptually showing how a thin tube or pipe passes through a roller pair in the roller type fryer of the present invention. FIG. 5 is a conceptual diagram of a state in which a pair of roller pairs in five rows is not rotated around a horizontal axis with respect to the paper surface and a thin tube or pipe is passed between the roller pairs in five rows. A pair of five rows of rollers are rotated around a horizontal axis with respect to the plane of the paper, and a pair of rollers of the second row (C in the figure) and the fourth row (D of the figure) movable vertically with respect to the plane of the paper by centrifugal force. It is a conceptual diagram of the state which moved to the up-down direction. It is a conceptual diagram in the state where the oil is applied in the case of the conventional rubber tube type fryer. FIG. 2 is a front view of an embodiment (FIG. 1) of a fryer in which five rows of roller pair units are connected to a rotary shaft 1. It is the figure which looked at the unit 6 of the roller pair of the upper roller 12 and the lower roller 13 from the direction of the rotating shaft 1 when the rotating shaft 1 is stationary. It is a top view of a roller pair unit and a press plate of 5 rows. It is a front view of a roller pair unit and a press plate of 5 rows.

  BEST MODE FOR CARRYING OUT THE INVENTION A mode for carrying out the invention is a plurality of pairs of rollers that pass through a thin tube or a pipe having a small diameter and do not move in the direction perpendicular to the rotating shaft 1, and a plurality of roller pairs that move in the direction perpendicular to the rotating shaft 1. It is a device (flyer) for straightening the thin tube or the small-diameter pipe, which is provided with a plurality of pairs of rollers.

In FIG. 1, a corner block 2 connects five pairs of rollers 11 for guiding a thin pipe or a pipe having a small diameter. Of the roller pairs, the first, third and fifth roller pairs 4 do not move in the direction perpendicular to the rotation shaft 1, and the roller pairs 5 in the second and fourth rows do not move in the direction perpendicular to the rotation shaft 1. Can be moved. The corner block 2 is fixed to the rotary shaft 1 by being fastened to a corner block mounting frame, which is integrally manufactured with the rotary shaft 1, with a fastening component such as a screw. The corner block 2 to which the five rows of roller pairs are fixed is rotated by a drive motor by a rotation shaft 1 around the axis of the thin tube or the pipe. When the rotary shaft 1 rotates, the roller pairs in the second row and the fourth row move outward due to centrifugal force. Although FIG. 1 shows an embodiment using five rows of roller pairs, a roller pair of five rows or more or a roller pair of five rows or less is also possible.
A roller made of rubber is suitable for the roller 11, and urethane rubber is most suitable, but other material having flexibility and elasticity may be used. The diameter of the thin tube or pipe can be from 0.5 mm to a minimum of 0.2 mm.

The link component 3 in FIG. 9 is on both sides of the fryer and is rotatably supported at the center of the link component 3. The pin component 8 of FIG. 1 is located in the roller pair of the second row and the roller pair of the fourth row, and is inserted into the elongated hole in the link component 3 (hereinafter referred to as “link mechanism”). As a result, in the link component 3, the roller pair of the second row and the roller pair of the fourth row move in opposite directions at right angles to the rotation shaft 1.
In the link mechanism, as the roller pairs of the second row and the fourth row move outward, the pin component 8 moves along the elongated hole of the link component 3 and the link component 3 moves in an arc shape.
Here, in order to eliminate sliding between the pin component 8 and the elongated hole of the link component 3, additional link components (hereinafter, referred to as “additional link components”) are added one by one on both sides of the roller pair. The movement of the link parts 3 on both sides of the fryer can be made straight to improve the movement during the movement smoothly.

In FIG. 10, the pair of rollers is an upper roller 12 (hereinafter referred to as “upper roller” because it is on the upper side of the paper of FIG. 10) and a lower roller 13 (hereinafter, lower on the surface of the paper of FIG. 10). "Lower roller"). Even if the roller pair rolls around the vertical axis of the paper surface of FIG. 10, the thin line or the pipe is provided between the groove of the upper roller 12 and the groove of the lower roller 13 so that the thin line or the pipe is rolled. The pipe is structured so as not to come off the roller pair.
The roller side plates 10 are provided on both sides of the upper roller 12 and the lower roller 13 in order to prevent the roller from meandering and have a bearing built therein. The bearings allow the upper roller 12 and the lower roller 13 to rotate freely around a horizontal axis in the plane of FIG. The roller pressing part 15 holds the upper roller 12 and the lower roller 13 from lateral displacement. The pin component 8 is fastened to the link pin 9, and constitutes a link mechanism together with the link component 3.
The three circles in the center of FIG. 10 show the cross section of the rotary shaft 1 and the protective pipe inside the rotary shaft 1 for protecting the thin tube or the pipe from being damaged.

  In order to manufacture an injection needle or nozzle from a coil in which a thin tube or a pipe having a small diameter is wound, the thin tube or the pipe supplied from the coil must be linear, and the present invention is very effective.

1 rotating shaft 1
2 Corners connecting the roller pairs of the fifth row so that the roller pairs of the second and fourth rows are movable and the roller pairs of the first, third and fifth rows are fixed. Block 3 Link parts of link mechanism of roller pairs of second row and fourth row 4 Fixed roller pairs of first row, third row and fifth row 5 Movable roller pairs of second row and fourth row 6 Roller pair unit of the second and fourth rows 7 Stopper of the link component 3 for adjusting the moving length of the roller pair of the second and fourth rows 8 Pin component of the link mechanism 9 Link pin 10 Roller side plate 11 Roller 12 Upper roller 13 Lower roller 14 Roller pair unit frame 15 Roller retainer 16 5 rows of roller pair unit

In a multi-row rubber roller pair that passes through a thin tube or a small-diameter pipe, the two rubber rollers of the roller pair have concave grooves that allow the thin tube or the pipe to pass, and Two rubber rollers are adjacent to each other in series without intersecting with the rotary shaft 1 in the direction perpendicular to the rotary shaft 1, and a roller pair 4 that does not move in the direction perpendicular to the rotary shaft 1 and a centrifuge by rotation of the rotary shaft 1. By providing a device (flyer) that straightens the thin tube or the small-diameter pipe, the roller pair 5 that is movable in a direction perpendicular to the rotating shaft 1 by a force, and the rotating shaft 1 are provided. Solve.
Instead of the rubber tube, rubber rollers having grooves are vertically arranged as shown in FIGS. 5, 6 and 7 so as to sandwich the thin tube or the pipe.
As shown in FIGS. 5 and 7, when the thin tube or the pipe passes, the upper roller and the lower roller rotate in the direction of arrow A (progress), so that there is no resistance, and the roller in the direction of arrow B ( Hereinafter, even if it is referred to as “rolling”), the structure is such that the thin tube or the pipe does not come off the roller. And, as compared with the case where a rubber tube is used, a fryer in which the roller pairs are arranged in multiple rows so that the thin tube or the pipe can be twisted more (because the thin tube or the pipe is pulled outward by centrifugal force, )) (C and D shown in FIG. 7 move to the outside), and straight out the thin tube or the pipe.

Claims (10)

In a multi-row roller pair that passes through a thin tube or a small diameter pipe, a roller pair 4 that does not move in the direction perpendicular to the rotating shaft 1 and a roller pair 5 that can move in the direction perpendicular to the rotating shaft 1,
With the rotating shaft 1,
A device for making the thin tube or the small-diameter pipe straight (flyer)   The apparatus according to claim 1, wherein five rows of roller pairs are used.   The link part 3 and the pin part 8 are provided so that, among the roller pairs of the multiple rows, some roller pairs move the same moving length in directions opposite to the rotary shaft 1 at right angles. Equipment   3. The link component 3 and the pin component 8 for causing the roller pair of the second row and the roller pair of the fourth row to move the same moving length in the opposite directions at right angles to the rotation axis 1. apparatus A link part 3, a pin part 8 and an additional link part are provided which allow the roller pairs of the second row and the roller pairs of the fourth row to move the same length in opposite directions at right angles to the rotary shaft 1,
Device according to claim 2, characterized in that the movement of the link part (3) is linear.   A method for straightening the capillaries or pipes by the device according to claim 1.   A method of straightening the capillaries or pipes according to the device of claim 2.   A method of straightening the capillaries or the pipe by means of the device according to claim 3.   A method of straightening the capillaries or the pipe by the device according to claim 4. Equipped with two rollers vertically adjacent to each other,
The thin tube or the pipe passes between the two rollers,
A roller pair unit used in the device according to claim 1.