JP3494061B2 - Tube feed detection mechanism in printing tube alignment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily detect an abnormality in a feed of a printing tube to prevent clogging of the printing tube. SOLUTION: In a printing aligning device for a tube which feeds the printing tube onto an adhesive tape for alignment which moves in the longitudinal direction and cuts it to a predetermined length after printing on the tube and presses the cut printing tubes against an adhesive face of the aligning tape sequentially by a tube pressing means 18 to bond them, the device is provided with a first detection means 27 detecting a travel amount of the tube pressing means 18 when there is no printing tube between a pressing part 21 of the printing tube formed on a lower face of the tube pressing means 18 and the adhesive face of the aligning tape and a second detection means 30 detecting a travel amount of the tube pressing means 18 when there are two or more printing tubes between the pressing part 21 and the adhesive face of the aligning tape.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for printing characters on a surface of a print tube at regular intervals, and cutting and aligning the print tube to a predetermined length. The present invention relates to a feed detecting mechanism for detecting a feed state of a tube in a print tube aligning apparatus which is attached to a tape and aligned and held. 2. Description of the Related Art As shown in FIGS. 1 and 2 of Japanese Patent Application No. 10-145461, this type of tube printing and aligning apparatus is known.
A printing device for printing characters and the like on the surface of a long tube;
And an alignment device for aligning and holding the printed print tube on the alignment tape. As described above, since the printing and aligning device is composed of two devices, the feeding and printing of the tube in the printing device and the cutting and sticking of the printing tube in the aligning device must be performed reliably and smoothly. [0003] In the tube aligning apparatus, when the printing tube is cut or attached to the printing tube for some reason and the printing tube is fed poorly, the tube is clogged. In particular, since the tube is gradually unwound from the state of being wound on the winding shaft, the part close to the last winding shaft has a winding or twisting, so it was cut by the alignment device At times or later when pressed on the alignment tape, the above-mentioned habit returns and normal work is not performed, so that it often becomes clogged. [0004] As described above, when the print tube is clogged in the aligning device, the influence of the clogging spreads to the printing device of the tube, and the clogged tube in the printer is bent and printed. It hits the head and causes destruction and damage to the device. SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks, and monitors the feeding state of a print tube to quickly detect any abnormality and prevent clogging of the print tube. It is an object of the present invention to provide a feed detection mechanism of the present invention. [0006] In order to solve the above-mentioned problems, a tube feed detecting mechanism in a print tube aligning apparatus according to the present invention, after printing at a constant interval on a long tube, Along with sending this print tube orthogonally onto the alignment adhesive tape that moves in the longitudinal direction, the print tube is cut to a predetermined length by cutting means,
In a tube printing aligning apparatus for sequentially pressing and attaching the cut print tubes to the adhesive surface of the alignment tape by a tube pressing means, the printing tube pressing portion formed on the lower surface of the tube pressing means and the adhesive of the alignment tape are attached. When the first detecting means for detecting the amount of movement of the tube pressing means when there is no printing tube between the printing surface and the two or more printing tubes between the pressing portion and the adhesive surface of the alignment tape. The amount of movement of the tube pressing means is abnormal.
And a second detecting means for detecting the temperature. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes an apparatus main body of a print tube aligning apparatus. An alignment tape a for aligning tubes is wound around one end of the apparatus main body 1.
The alignment tape a has an adhesive applied to the upper surface thereof, and is configured to be fed on the table 1a of the apparatus main body 1 to the other end side along its longitudinal direction by an appropriate feeding means (not shown). I have. On the other hand, the printing tube b is printed on the upper surface at a predetermined interval by a printing device (not shown), and is then intermittently aligned by a step motor from the conical guide portion 3 of the tube cutting alignment device by a predetermined length. It is configured to be sent to the print sticking section 4 so as to be orthogonal to the tape a. Note that an upper cover member 2 is provided on an upper portion of the apparatus main body 1.
Are provided to be freely opened and closed. The feed mechanism for the alignment tape a and the print and feed mechanism for the print tube b are described in Japanese Patent Application No.
The configuration may be the same as that shown in JP-A-145461. Then, the printing tube b is cut to a predetermined length by a cutting mechanism 5 of the printing tube alignment device.
Further, the tape is sequentially attached to the adhesive surface of the alignment tape a by the attaching mechanism 6 shown in FIGS. As shown in FIG. 2, the tube sticking section 4 has guide walls 7 (one pair on the left and right sides) for guiding the left and right sides of the print tube b sent from the guide section 3.
A tube receiver 8 for guiding the lower surface of the printing tube b;
A cutting mechanism 5 that cuts the print tube b sent to the table 1a to a predetermined length and a sticking mechanism 6 that presses the cut print tube b onto the alignment tape a to stick the same are arranged. I have. A pair of guide walls are provided on the left and right so that the print tube b passes through the inside. The tube receiver 8 has a U-shaped main body 8a provided with a rotating shaft 9 at the top and a tube receiving surface 10 at the bottom, and a triangular plate 11 for stopping the tube fixed to the outside. The receiving surface 10 is rotatably attached to a position where the receiving surface 10 receives the printing tube b and a position where it is retracted from the printing tube b. The tube receiver 8 is urged by a spring (not shown) so as to always move to a position for receiving the print tube b. As shown in FIG. 2, the cutting mechanism 5 comprises cutting means 5a for sandwiching the alignment tape a, and tube holders 15, 16 for pressing and holding the tube immediately before cutting. The cutting means 5a comprises a pair of blades 13, 14 of a fixed blade and a movable blade. The printing tube b passed through the outlet of the guide section 3 is moved by a motor (not shown) to the movable blade 1.
4 is configured to be operated and pinched. At the time of cutting, the printing tube b is held between the lower tube holder 15 and the upper tube holder 16 which are freely opened and closed near the fixed blade 13 and the movable blade 14.
The upper tube holder 16 is rotatably supported by the movable blade 14 within a certain range, is urged by a spring 17 so as to always rotate downward, and is held rotatably. What is necessary is just to comprise so that it may move up to the position of the fixed blade 13 in conjunction with the movable blade 14. Next, the sticking mechanism 6 presses the cut print tube b onto the alignment tape a to stick the same, and as shown in FIGS. It is constituted by a link 19 and an operation motor 20 and is attached to the upper cover member 2 respectively.
The tube pressing means 18 protrudes a plate-shaped pressing portion 21 below the base 18a, is provided so as to be vertically movable with respect to the upper cover member 2, and is constantly biased downward by springs 22 arranged on both sides of the base 18a. Have been. Pressing part 2
An inverted V-shaped groove 23 is formed on the lower surface of 1. Further, a pressing roller 24 is provided on the side of the tip of the pressing portion 21. The pressing roller 24 is disposed so as to be able to engage with the slope 25 of the triangular plate 11 of the tube receiver 8. Further, a detection projection 26 is formed at the tip of the pressing portion 21 so that the detection projection 26 passes through first detection means (transmission type sensor) 27 provided on the table 1a. Is provided. As shown in FIG. 7, a detecting projection 28 is also formed at one end of the base 18a so as to project therefrom. A transmission sensor 30 is provided. Working plate 2
9 is rotatably supported by a shaft 31, one end of which is formed with an engaging portion 32 engageable with the protruding piece 28, and the other end 33 is provided so as to pass through the second detecting means 30. Have been. When the operating plate 29 is engaged with the protruding piece 28 and the engaging portion 32 moves, the other end 33 is configured to move about three times the moving amount of the engaging portion 32. The reason why the movement amount of the protruding piece 38 is increased by the operation plate 29 is to prevent uncertainty in detection due to a dimensional error of the component itself, an error in the thickness and size of the print tube, and the like. As shown in FIG. 3 and FIG.
Is rotatably supported by a support shaft 34, one end of which is engageable with the lower surface of the base 18a of the tube pressing means 18, and the other end of which is engaged with an eccentric cam 35. The eccentric cam 35 is fixed to a gear 37 operatively connected to the motor 20. Normally, the drive link 19 urges the tube pressing means 18 upward against the spring 22. A protruding piece 38 is also fixed to the gear 37 provided with the eccentric cam 35, and formed so as to pass through a third sensor (transmission type sensor) 39. Next, the operation of the printing tube aligning apparatus having the above-mentioned structure will be described with reference to the drawings. Then, as shown in FIG. 2, the print tube b is supported by the receiving surface 10 of the tube receiver 8 in a state of being lifted from the alignment tape a.
Thereafter, the cutting mechanism 5 is operated to cut the print tube b. Along with the cutting operation, the motor 20 of the upper cover member 2 is operated and the drive link 19 swings by the eccentric cam, and the end of the drive link 19 is lowered. From the state shown in FIG. 4, it moves downward as shown in FIGS. 5 (a) (b) and 6 (a) (b). When the tube pressing means 18 moves downward, the printing tube b cut by the inverted V-shaped groove 23 of the pressing portion 21 is pressed downward, and the pressing roller 24 is moved to the inclined surface 25 of the triangular plate 11 of the tube receiver 8.
Is pushed down to retract the tube receiver 8, so that the printing tube b is pressed onto the alignment tape a by the tube pressing means 18 and adhered thereto. Thereafter, each member returns to the home position by rotating each gear to the initial position.
At this time, the projecting piece 3 of the gear 37 on the upper cover member 2 side
Since 8 passes through the third sensor 39, it is detected that one cycle is completed. Thereafter, the alignment tape a and the printing tube b are fed again by a predetermined length, and the next cutting and sticking are prepared. By repeating the same operation, the alignment tape a
The print tube b is aligned and held. When the sticking mechanism operates as described above and only one print tube b is normally sent and no clogging occurs, the base 18a of the pressing means 18 as shown in FIG. Locking projection 28 at one end
Does not engage with the engaging portion 32 of the operating plate 29, and the detecting projection 26 passes through the first detecting means 27. In this case, the tube feed is determined to be normal. Next, when the printing tube b is sent to the sticking mechanism in spite of the hindrance of the movement of the alignment tape a and the stop of the alignment tape a, as shown in FIG. Since the two printing tubes b overlap at the same position of the alignment tape a, the pressing means 18 cannot move down, so that neither the first detecting means 27 nor the second detecting means 30 can detect. . In this case, the tube feed is abnormal, and it is determined that two (or more) feeds have been made. Therefore, by detecting the clogging of the tube by the first detecting means 27, the misalignment of the printing tube b can be prevented, and the clogging of the printing tube b on the printing apparatus side can be effectively prevented. it can. When the printing tube is not sent to the aligning device, as shown in FIG. 8, since the amount of movement of the pressing means 18 is large, the detecting projection 26 of the pressing portion 21 is connected to the first detecting means. At the same time as passing through 27, the detecting projection 28 at the end of the base 18a also engages with the engaging portion 32 of the operating plate 29 to rotate the operating plate 29. Pass 30. Also in this case, it is determined that the tube feeding is abnormal due to clogging somewhere. In this way, before the printing tube b is clogged on the printing device side, there is always no tube below the tube pressing means 18 in the alignment device. Therefore, the second detecting means 30
By detecting the feeding failure of the tube, it is possible to effectively prevent the tube from being clogged on the printing apparatus side.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an outline of a tube print aligning apparatus. FIG. 2 is a perspective view of a main part of a cutting and sticking mechanism in the tube print aligning apparatus. FIG. [Figure 4] Front view of tube sticking mechanism [Figure 5] (a) (b) is an explanatory view of the initial operating state of the tube sticking mechanism [Figure 6] (a) (b) is a tube FIG. 7 is an explanatory diagram of an operating state of the attaching mechanism at the time of adhering. FIG. 7 is an explanatory diagram of an operating mode of the pressing means when the feeding of the printing tube is normal. FIG. 8 is a printing tube despite the stopping of the alignment tape. FIG. 9 is an explanatory view of the operation mode of the pressing means when the printing tube is sent.
Explanatory diagram of operation of pressing means when feeding is not performed [Description of symbols] a Alignment tape b Printing tube 1 Main body of device 5 Cutting mechanism 5a Cutting means 6 Sticking mechanism 13 Fixed blade 14 Movable blade 18 Tube pressing means 21 Pressing part 26 Detecting piece 27 First detecting means 30 Second detecting means 33 End of operating plate

Claims (1)

(57) [Claims 1] After printing on a long tube at a predetermined interval, the printing tube is sent orthogonally onto an alignment adhesive tape moving in a longitudinal direction. A tube printing aligning device for cutting the print tube to a predetermined length by a cutting unit, and sequentially pressing the cut print tube against the adhesive surface of the alignment tape by a tube pressing unit to adhere the tube; Detecting means for detecting as an abnormality the amount of movement of the tube pressing means when there is no print tube between the pressing portion of the printing tube formed on the lower surface of the print tube and the adhesive surface of the alignment tape; And a second detecting means for detecting, as an abnormality, an amount of movement of the tube pressing means when two or more printing tubes are present between the printing tube and the adhesive surface. Tube feed detection mechanism in U-shaped tube alignment device.