JPH0222281Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a printing device that can print beautifully.

Conventional technology Conventionally, curved surface printing using the dry offset method started with pencil printing, but printing was only made possible by the circular pressure of the blanket cylinder 2, and pedestals 3, 3 is installed and prints while rotating.

Therefore, in the case of an elongated object such as a pencil, strong pressure is applied to both ends, which reduces the printing pressure at the center, causing "drops" in that area, resulting in a weak print.

By the way, in order to eliminate this drawback, the central pedestal 5 was placed in the center of the pedestals 3, 3 in order to average out the weight, but there is a problem that dirt occurs in that part.

Technical Problem This invention solves the above-mentioned problems, and the technical problem is to obtain a printing device that is convenient to use.

Technical Means In order to solve the above-mentioned technical problem, this invention provides a blanket cylinder 2 that performs printing in a circumscribed manner on the surface of a printing material 1 such as a rotating writing instrument shaft. Supports 3, 3 are provided in parallel to support both ends 4, 4 of the printing material 1, and the printing material 1 is pressure-guided to the blanket cylinder 2 by being located in the center of the holders 3, 3. A central pedestal 5 is provided, and a wrapped body 8 is provided in which a tape 7 made of paper or cloth is wound around the surface portion 6 of the central pedestal 5, and the wrapped body 8 of the tape 7 is wrapped around the machine frame 9. The tape 7 is mounted on the attached mounting shaft 10, and the tape 7 is wound up by the winding shaft 11, and the winding operation is carried out intermittently during non-printing periods according to the rotation of the blanket cylinder 2, so that the tape 7 is moved. It was formed.

The illustrated printing device is a cylindrical body made of synthetic resin, such as a writing shaft or a confectionery container, which is printed with ultraviolet curable ink through a blanket cylinder 2 and then covered with a movable body 12. The printed matter 1 is placed on a transfer belt 13 that is rotated and transferred, and the position corresponding to the ultraviolet curing device 14 is moved to perform instant curing.

Further, 15 is a covering frame of the ultraviolet curing device 14, and 16 is a window for taking out fallen objects.

Further, to explain the details of the attachment state and movement state of the tape 7, in the illustrated example, the attachment point and movement range of the tape 7 are set at the intermediate portion 45 between the blanket body 2 and the ultraviolet curing device 14, as shown in FIG. It is extremely convenient because the tape 7 does not take up much space and does not interfere with other operations. Next, to explain the movement of the tape 7, the mounting shaft 10 is attached directly to the mounting base 48 of the transfer belt 13 or to a part other than the mounting base 48.
As shown in FIG. 2, the tape 7 is guided by the first intermediate guide 17 and held at the clamping part 2, with one side being the driving blanket cylinder 18 and the other side being the pressing cylinder 19.
0, is guided onto the surface part 6 of the central holder 5, is reversed by the guide hole edge 22 to which the guide rod 21 is attached, is guided to the second intermediate guide body 23, and is wound by the winding shaft 11. It is.

Further, the driving blanket cylinder 18 rotates intermittently in accordance with the rotation of the blanket cylinder 2 (details will be described later).
Further, the driving blanket cylinder 18 is rotated by rotating a first rotating wheel 25 with a large diameter via a drive shaft 24, and rotating a second rotating wheel 26 with a small diameter by an appropriate means such as a belt 36, thereby rotating the winding shaft 11. do. This eliminates slack in the tape 7 when the second rotating wheel 26 is wound faster than the first rotating wheel 25.

Further, the mounting shaft 10 is provided with a mounting body 29 provided with a collar 28 into which the paper tube 27 of the wrapped body 8 is fitted.
By attaching the presser tube 31, which can be attached and detached by the screw 0, to the mounting shaft 10, the wrapped body 8 can be prevented from detaching.
A wound body 49 can be obtained by sequentially winding up the winding tube 33 which can be attached and detached. Also, drive shaft 2
Rotation 4 rotates the eccentric cam 34 in accordance with the rotation of the blanket body 2, raises and lowers the elevating rod 35, raises the rotating rod 37 with a ratchet portion, and rotates the drive shaft 24 intermittently. The rotating rod 37 and the lifting rod 35 are lowered by their own weight to the positions shown in FIGS. 6 and 7. The lower rod 5 can adjust the gap size 40 until the head 39 hits the rotating rod 37 when the lower rod 5 rises.
0 and an upper rod 47 provided with a long hole 46 through which the adjustment bolt 38 attached to the lower rod 50 can be inserted and tightened.
The amount of movement of the tape 7 can be adjusted by adjusting the amount of rotation of the drive shaft 24.

Therefore, the tape 7 depends on the outer diameter of the printing material 1.
The amount of movement can be adjusted and the tape 7 can be used without waste. 41 is a lifting rod receiver, 42 is a support spring, 43 is a hopper, and 44 is a printed pattern.

Effects This invention has the above-mentioned configuration, and includes a blanket cylinder 2 that performs printing by covering the surface of a printing material 1 such as a rotating writing instrument shaft, and guides the printing material 1 onto the blanket cylinder 2 in contact with the blanket cylinder 2. In addition, pedestals 3, 3 that support both ends 4, 4 of the printing material 1 are provided in parallel, and a central pedestal is located in the center of the pedestals 3, 3 and guides the printing material 1 against the blanket cylinder 2. 5 is provided, and a wrapped body 8 is provided in which a tape 7 made of paper or cloth is wound around the surface portion 6 of the central cradle 5, and the wrapped body 8 of the tape 7 is attached to a mounting shaft attached to the machine frame 9. 10, the tape 7 is wound up by the winding shaft 11, and the winding operation is performed intermittently during non-printing periods according to the rotation of the blanket cylinder 2, so that the tape 7 is moved. Therefore, when the next printing material 1 is printed according to the rotation of the blanket cylinder 2, no printing ink remains on the surface of the central holder 5, so the printing material 1 is stained with unnecessary printing ink. This allows for beautiful printing without any problems.

Furthermore, it has a very simple structure and can be provided at low cost, and has many practical effects.

[Brief explanation of drawings]

Fig. 1 is a side view, Fig. 2 is an explanatory perspective view of the entire main part, Fig. 3 is a partially cutaway perspective view of the main part, Fig. 4 is a partially cutaway sectional view of the main part, and Fig. 5 is a perspective view of the main part. Partial perspective view, No. 6
Figure 7 is an explanatory diagram explaining the amount of movement of the tape,
FIG. 8 is a perspective view of the printing material. 1... Printing material, 2... Blanket cylinder, 3...
...Case, 4...Both ends, 5...Central pedestal, 6
... Surface portion, 7 ... Tape, 8 ... Wound body, 9 ...
... Machine frame, 10 ... Mounting shaft, 11 ... Winding shaft, 12
. . . Moving body, 13 . . . Transfer band, 14 . ...Press cylinder, 20... Holding part, 21...
... Guide rod, 22 ... Guide hole edge, 23 ... Second intermediate guide body, 24 ... Drive shaft, 25 ... First rotating wheel,
26...Second rotating wheel, 27...Paper tube, 28...
Tsuba, 29... Mounting body, 30... First machine screw, 31
... Presser tube, 32 ... Second machine screw, 33 ... Winding tube, 34 ... Centripetal cam, 35 ... Lifting rod, 36 ...
... Belt, 37 ... Rotating rod, 38 ... Adjustment bolt, 39 ... Head, 40 ... Gap size, 41 ...
Lifting rod receiver, 42...Support spring, 43...
Hopper, 44...Printed pattern, 45...Middle part,
46...long hole, 47...upper rod, 48...mounting base,
49... Winding body, 50... Lower rod.

Claims (1)

[Scope of utility model registration request] A blanket cylinder 2 that performs printing is provided in a circumscribed manner on the surface of a printing material 1 such as a rotating writing instrument shaft, and the printing material 1 is pressure-guided to the blanket cylinder 2, and both ends 4, 4 of the printing material 1 are supported. The pedestals 3, 3 are provided in parallel, and a central pedestal 5 is provided in the center of the pedestals 3, 3 to press and guide the printing material 1 to the blanket cylinder 2, and a surface portion 6 of the central pedestal 5 is provided. A wrapped body 8 is provided with a tape 7 made of paper or cloth wrapped around it, and the wrapped body 8 of the tape 7 is attached to a mounting shaft 10 attached to a machine frame 9, and the tape 7 is attached to a winding shaft 11. Therefore, the winding operation is performed intermittently in accordance with the rotation of the blanket cylinder 2 during non-printing periods, and the printing device is configured to move the tape 7.