JPH0314357Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention involves bringing a stamp fixed to a heated printing roll that rotates in a predetermined cycle into contact with a solid ink roll that receives heat from a heater, and transferring the stamp to the printed surface of the stamp. This invention relates to a thermal transfer printing device that transfers ink onto a film or the like.

(Conventional Description) As shown in FIG. 5, the applicant of the present application supported the solid ink roll 2 and spare ink roll 3 of one block 1, fixed the markings 4, 4 on the peripheral surface, and A heated printing roll 6 with a built-in heater 5 is attached to the block, and the stamps 4, 4 are brought into contact with the solid ink roll 2 in a predetermined cycle, and the solid ink is melted by the stamp and transferred to the film 7 running below. (Utility Model Application Publication No. 59-1817421).

The solid ink roll 2 of the printing device has its main body made of a spongy body such as rubber foam, and the spongy body is impregnated with ink and solidified, so that the ink in the spongy body will eventually be consumed. For this reason, the block 1 is operated with the handle 8 around the pin 9, and the spare ink roll 3 can be immediately replaced to a position where it comes into contact with the stamp 4.

(Problem that the invention aims to solve) However, since the ink in the spare ink roll 3 is in a solid state immediately after replacement, the transfer of the ink to the film is poor and uneven printing occurs. However, there was a drawback that one had to wait for the ink to melt due to the rising heat of the auxiliary heater (h).

In view of the above points, it is an object of the present invention to provide a printing device that requires less waiting time after replacing the ink roll.

(Means for solving the problem) In order to achieve the above object, the present invention has three shafts 18, 19, 20 extending from the bottom to the top on the bearings of the vertical wall-like frame 10a and protruding long toward the front side. The respective shafts and the power shaft are supported by belts 21 and 2 on the back side of the frame.
2, each shaft is connected to each other so as to be interlocked, and at the open end of the lowermost main shaft 18 of the three shafts, a stamp support 12 is provided which supports a stamp in a circular manner on the circumferential surface, The driven shaft 1 on the upper part of the marking support
A solid ink roll 13 is removably provided on the solid ink roll 9 so that the markings of the marking tool are in contact with the circumferential surface of the solid ink roll.
A spare solid ink roll 14 is detachably supported on the driven shaft 20 at the upper part of the printer 3, and a panel heater 16 is further interposed between the two solid ink rolls 13 and 14.

(Function) According to the present invention, the marking support 12 supported on the main shaft 18 and the stamp support 12 supported on the two driven shafts 19, 20,
The solid ink rolls 13 and 14 are connected to a power source via belts 21 and 22, respectively, so that they rotate within the casing. The solid ink rolls 13 and 14 are heated by the heat radiated from the panel heater 16 located between the 12 solid ink rolls 13 and 14, and the ink on the surfaces of both solid ink rolls is melted. Therefore,
The stamp provided on the circumferential surface of the stamp support 12 is connected to the circumferential surface of the lower solid ink roll 13 in a certain cycle.
The ink is alternately contacted with the transfer material to transfer the ink to the transfer material.

When the amount of ink held in the lower solid ink roll 13 becomes insufficient after the transfer action for a predetermined period of time, the solid ink roll 13 is pulled out from the front opening side of the casing 10, and a spare solid ink roll located above is removed. 14 is transferred from the upper driven shaft 20 to the lower driven shaft 19. Since the ink is already melted on the surface of the spare solid ink roll 14, printing work can be started immediately. Moreover, the above-mentioned spare solid ink roll 14
Since it received heat from the panel heater 16 while rotating, the ink melted evenly over the entire surrounding area, and no uneven printing occurred even immediately after starting work.

(Example) An example of the present invention will be described based on FIGS. 1 to 4.

As shown in FIG. 1, the printing machine is formed by supporting four rolls 11, 12, 13, and 14 in a horseshoe-shaped casing 10. The lowest roll 12 in the casing is a stamping support and can fix a suitable number of stamps 15 radially. Further, the two rolls 13 and 14 above the marking support 12 are both solid ink rolls, and a semicircle is formed between the two solid ink rolls 13 and 14 so as to surround the lower solid ink roll 13. A type panel heater 16 is provided to melt the solid ink with heat. Furthermore, the casing is supported via an arm 17 to the main body of an attached machine, and as shown in FIG.
shaft 1 of each roll 12, 13, 14
8, 19, and 20 are connected by belts 21 and 22, so that the rotational power of the driving roll 11 is transmitted to the other three rolls 12, 13, and 14.
In this example, the paper or film to be printed (F)
The film (F) transmits a continuous movement in the direction of the arrow to the driving roll 11, while the film (F) With respect to the control interval of the clutch, the ink roll 1
The ink is transferred from step 3 onwards.

As shown in FIG. 3, there is a wall-shaped frame 10a inside the casing 10, and the three shafts, that is, the main shaft 18 and the other two driven shafts 19 and 20, are mounted on the bearings of the frame, respectively. Pulleys 25, 26, supported in a cantilevered manner and provided at the ends of each of these shafts,
The already explained belts 21 and 22 are stretched over the belts 27 and 28. Further, the panel heater 16 and the temperature regulator 32 are connected by wire through electrodes 30 and 31 that contact a rotating brush 29 provided at one end of the main shaft 18. Furthermore, the other ends of the main shaft 18 and the other two driven shafts 19 and 20 are each opened, and the printing support 12 with a built-in heater and two solid ink rolls are attached to the open ends of each of these shafts. 13 and 14 are removably fitted. Both the ink rolls 13 and 14 have a core rod 34, respectively.
It is formed by impregnating a sponge 35 provided around the ink with ink and drying it.The hollow core rod 34 is fitted and supported by the driven shafts 19 and 20, so when the ink runs out, the driven shaft can be easily moved. It can be removed from the shaft 20 and the upper spare ink roll 14 can be easily transferred to the lower driven shaft 19. In this case, the spare ink roll 14 is preheated by the panel heater 16 and the ink on the peripheral surface is melted, so printing can be started immediately.

In addition, in the example, the spare solid ink roll 14
is heated by the rising heat from the panel heater 16 below it, but a heater may be provided around the spare solid ink roll 14 to compensate for the lack of heat.

(Effects) The printing device of the present invention has solid ink rolls 13 and 14 mounted on two driven shafts supported by a frame.
A panel heater 1 is installed between these two solid ink rolls surrounded by a casing.
6, and the panel heater not only heats the main solid ink roll 13 but also heats the spare solid ink roll 14 to melt the ink, so that the ink on the main solid ink roll dries up. Immediately after replacing the spare solid ink roll, printing work could start immediately, which was efficient, and since the spare solid ink roll was rotated to evenly heat the entire surrounding area and melt the ink evenly, printing work resumed immediately. It has remarkable effects such as being able to prevent uneven printing.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a front view for explaining parts different from the previous figure, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 is a front view showing an embodiment of the present invention. The plan view shown in the previous figure and FIG. 5 are explanatory views of a conventional example. 11... Drive roll, 12... Stamp support (roll), 13... Ink roll, 14... Spare ink roll, 15... Stamp, 16... Panel heater, 18... Main shaft, 19, 20... Driven shaft, 2
9... Rotating brush, 30, 31... Electrode, 32...
...Temperature controller, 34... Core rod, 35... Sponge, F... Film.

Claims (1)

[Scope of utility model registration request] Three shafts 18, 19, 20 are supported in a cantilevered manner from bottom to top on bearings of a vertical wall-like frame 10a so as to protrude horizontally and long toward the front side,
On the back side of the frame, each of the shafts and the power shaft are connected via belts 21 and 22 so that the shafts interlock, and at the open end of the main shaft 18 which is the lowermost of the three shafts. , a stamp support 12 that supports a stamp in a circular manner on its circumferential surface is provided, and a solid ink roll 13 is mounted on a driven shaft 19 at the top of the stamp support, and the stamp of the stamp support contacts the circumferential surface of the solid ink roll. A spare solid ink roll 14 is removably supported on the driven shaft 20 at the top of the solid ink roll 13, and both solid ink rolls 13, 14 are removably supported.
A printing device in which a panel heater 16 is interposed between.