JP4812486B2 - Rotation mark - Google Patents

Description

  The present invention relates to a rotational mark using a permeable endless printing belt.

  In a rotary stamp in which an endless print belt with ink permeability is suspended between a plurality of rotors arranged between both side plate portions of a frame for rotation stamp and a bridge piece, the printing portion on the surface of the endless print belt Ink replenishment is normally performed by an ink occlusion body of an ink occlusion material provided on the back side of the endless print belt (see Patent Document 1). However, since the above-mentioned ink occlusion body uses porous materials having continuous pores, porous synthetic resins such as polyurethane and polyethylene, and porous materials having high frictional resistance and poor slipping properties such as felt. There is strong resistance between the inner surface of the endless print belt and the endless print belt, and this rotor slips when turning the rotor that suspends the endless print belt to change the endless print belt to the desired print surface. There is a problem of doing.

This slip can be prevented by increasing the tension applied to the endless print belt to increase the resistance to the rotor. However, if the resistance to the rotor is increased, the endless print belt breaks. There is a risk of doing.
Japanese Utility Model Publication No. 2-29757

  The present invention solves the above-described problems, improves the slipperiness of the endless print belt during the rotation operation, prevents the rotor from slipping when the rotor is rotated, and allows the endless print belt to be operated with a light rotation operation. The present invention has been completed for the purpose of providing a rotation mark that can be easily changed to the position of the bridge piece.

The rotational mark of the present invention that has solved the above-described problems is provided by suspending an ink-permeable endless print belt between a plurality of rotors arranged between both side plate portions of a frame for rotational marks and a bridge piece. In the rotational mark in which the ink occlusion material for replenishing ink from the back side of the endless print belt to the printing portion on the surface is incorporated in the bridge piece, the ink replenishment surface of the ink occlusion material and the back surface of the endless print belt An ink-permeable protective sheet is provided on the bridge piece to improve the slipperiness of the endless print belt during rotation , and the ink-permeable protective sheet comprises 0.1 to 100 denier cotton yarn and polyester yarn. A basic invention is characterized in that it is made of one or both of a woven fabric and a non-woven fabric .

In the above-described invention, the ink occlusion material is an ink occlusion mat that is attached in a U-shaped cross section from the lower surface to the front and rear surfaces of the bridge piece, or in order to supply ink to the ink occlusion mat, A part of the upper portion of the ink storage mat is brought into contact with the upper portion, and an auxiliary ink storage body having an inverted U-shaped cross section larger than the ink storage mat is provided. As the ink-permeable protective sheet in each invention described above, it can also be of a consisting of a backing fabric and Dozai endless printing belt.

  In the present invention, the ink occlusion material is interposed between the ink replenishment surface of the ink occlusion material that replenishes ink on the printed portion on the surface from the back side of the endless print belt and the back surface of the endless print belt. Since the protective sheet is provided integrally to improve the slipperiness of the endless print belt during rotation, ink is stored when the rotor is turned to change the desired print surface of the endless print belt to the lower surface of the bridge piece. Even if the body is made of porous rubber with continuous pores, porous synthetic resin such as polyurethane and polyethylene, or a porous material with high frictional resistance and poor slipping properties, the back surface of the endless printing belt is It is not directly in contact with the ink occlusion body, and it passes through an ink-permeable protective sheet that is more slippery and less likely to wear out. There are those that can be sent to accurately endless printing belt without slip is generated between the rotor and the endless printing belt gone the rotational driving force is impaired by contact with the ink occlusion body.

If the ink occlusion material is attached to the U-shaped cross section from the lower surface to the front and rear surfaces of the bridge piece, this ink occlusion mat also covers the corners of the bridge piece, further improving the slipperiness. In addition, the occlusion body is attached in a U-shaped cross section from the lower surface to the front and rear surfaces of the bridge piece, and a part of the ink occlusion mat is formed on the upper part of the ink occlusion mat. If it is made up of an auxiliary ink storage body with an inverted U-shaped cross section that is thick so that the ink storage amount provided in contact with the main body is larger than that of the main body of the storage body, a large amount of ink can be stored in the ink storage mat at all times. Since it can be replenished, it becomes more preferable. Furthermore, if the ink-permeable protective sheet is made of the same material as the back base fabric of the endless print belt, when the endless print belt slides on the ink occlusion material, one side is less worn. In addition, as the ink permeable protective sheet, a woven fabric or a nonwoven fabric made of one or both of 0.1 to 100 denier cotton yarn and polyester yarn is used. It is particularly preferable from the aspects described above.

Next, preferred embodiments of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a U-shaped frame for a rotation mark in which the upper plate portion 12 is connected between the upper ends of the left and right side plate portions 11, 11. The rotors 2 are arranged so as to be able to rotate individually. That is, the shaft hole 21 provided in the center of the rotor 2 is pivotally supported on the horizontal shaft 3 pivotally supported at both ends of the bearing portions 11a and 11a provided on the both side plate portions 11 and 11. Each of the rotors 2 includes a body 2a for suspending a belt and a rotating disk 2b for rotating operation.

  Further, a bridge piece 4 is installed at the lower ends of the both side plate portions 11, 11, and an endless print belt 5 with ink permeability is suspended between the bridge piece 4 and each of the rotors 2. The bridge piece 4 shown in the figure is described in Japanese Patent Laid-Open No. 9-156191 previously proposed and published by the applicant of the present invention because the rotation mark shown in the drawing is a rotation mark for master stamp. Similarly, it is a U-shaped metal fitting obtained by vertically folding a metal plate material, and engaging claw portions formed on both upper ends of the metal plate material are engaged with notches provided on lower ends of both side plate portions 11, 11 of the frame body 1. The above-described configuration is the same as that of the conventional rotation mark.

  Further, as shown in FIG. 3, the bridge piece 4 incorporates an ink storage material 6 for supplying ink from the back side of the endless printing belt 5 to the printing portion on the surface. The ink occlusion material 6 in the embodiment is a porous material having a large frictional resistance and a poor sliding property such as porous rubber, porous synthetic resin, felt, etc. along the outer surface of the U-shaped metal fitting as the bridge piece 4 described above. The thin occlusion material main body 6b in the form of a tape having a thickness of about 0.3 to 1 mm is bent and attached in a U shape, and the occlusion material main body 6b described above along the upper outer surface of the U-shaped metal fitting. A thick auxiliary ink occlusion body 6a having a tape shape of about 1 to 3 mm made of the same material as above is bent in an inverted U shape, and a part thereof is brought into contact with the upper part of the occlusion material body 6b to be integrated with attachment. It is a thing.

Of the above-mentioned storage material body 6b of the ink absorbing material 6, the bridge piece 4 covers the ink supply surface becomes part of the back surface of the at least endless printing belt 5, along the outer surface of the storage material body 6b 0 A woven fabric made of one or both of cotton yarn and polyester yarn of 1 to 100 denier or a tape-like ink-permeable protective sheet 7 having a thickness of about 1 to 3 mm is attached and integrated.

The ink occlusion material 6 is interposed between the ink replenishing surface and the back surface of the endless print belt 5 and is provided with an ink permeable protective sheet 7 for improving the slipperiness of the endless print belt 5 during rotation. integrally is not limited to those as described above as long as it is provided, for example, as shown in FIG. 4, porous rubber or porous in a recess 41 provided on the lower surface of the bridge piece 4 A block-shaped occlusion material body made of a porous material having a high frictional resistance and poor slipperiness, such as a synthetic resin or felt, may be fitted to cover the surface and attach an edge to the bridge piece 4. .

  Rotation marks such as date marks, number marks, symbol marks, and the like configured in this way are used to rotate the rotor 2 to appropriately change the print surface 5a of the endless print belt 5 on the lower surface of the bridge piece 4 so that the ink storage material 6 From the back side of the endless printing belt, ink is replenished to the printing portion on the surface and the desired date, numbers, symbols, etc. are imprinted, as in the conventional rotational marking.

  However, the present invention is characterized in that the ink occluding material 6 is interposed between the ink replenishing surface and the back surface of the endless print belt 5 to improve the slidability of the endless print belt 5 during rotation. The protective sheet 7 is provided integrally, and when the rotor 2 is rotated to change to the desired printing surface 5a of the endless printing belt 5 on the lower surface of the bridge piece 4, the ink occlusion material 6 is porous. Even if the material is made of a porous material such as rubber, porous synthetic resin, felt, etc., which has a large frictional resistance and poor slipperiness, the ink permeability protective sheet 7 ensures slipperiness. Is less than the resistance between the rotor 2 and the endless print belt 5, and the endless print belt 5 can be smoothly fed without slipping between the rotor 2 and the endless print belt 5.

  In addition, when the ink occlusion body 6 is formed in a thin plate shape so as to cover the lower surface and the front and rear surfaces of the bridge piece 4 as shown in FIGS. 1 to 3, the ink is also applied to the edge portion of the bridge piece 4. Since the permeable protective sheet 7 is positioned, the slipping property between the back surface of the endless printing belt 5 and the occlusion body 6b provided on the bridge piece 4 is more excellent. In addition, the ink occlusion material 6 is attached to the occlusion body main body 6a attached in a U-shaped cross section from the lower surface to the front and rear surfaces of the bridge piece 4, and a part of the upper portion of the occlusion body main body 6a is brought into contact with the upper part of the bridge piece 4. If the attached ink occlusion force is composed of the auxiliary ink occlusion body 6a having a reverse U-shaped cross section larger than that of the occlusion body 6a, the auxiliary ink occlusion body 6a is transferred from the auxiliary ink occlusion body 6a to the thin plate-like occlusion body 6b having a small ink storage amount. Since ink is replenished, continuous marking over a long time can be performed. Further, since the auxiliary ink occlusion body 6a is thicker than the occlusion body main body 6b, the ink can be replenished from the side surface.

Further, if the ink permeable protective sheet 7 is made of the same material as the back base fabric of the endless print belt 5, the wear of the both is reduced, and the ink permeable protective sheet is 0.1 to 100 denier. If it is made of a woven or non-woven fabric made of one or both of cotton yarn and polyester yarn, sufficient slipperiness can be ensured and ink permeability is excellent, and ink is replenished to the endless print belt 5. It can be done accurately.

The partially notched front view which shows embodiment of this invention. The partially cutaway side view showing an embodiment of the present invention. The perspective view which decomposes | disassembles and shows the principal part of embodiment of this invention. The partially notched side view which shows the other example of embodiment of this invention.

Explanation of symbols

1 frame
11 Side plate part 2 Rotor 4 Bridge piece 5 Endless printing belt 6 Ink occlusion material
6a Auxiliary ink occlusion body
6b Occupant body 7 Ink permeable protective sheet

Claims (4)

An endless print belt with ink permeability is suspended between a plurality of rotors arranged between both side plate portions of the frame for rotation marking and the bridge piece, and the printing portion on the surface from the back side of the endless print belt. In the rotation mark in which the ink occlusion material for replenishing ink is incorporated in the bridge piece described above, it is interposed between the ink replenishing surface of the ink occlusion material and the back surface of the endless print belt, thereby making the endless print belt slippery during rotation. An improved ink permeable protective sheet is provided on the bridge piece , and the ink permeable protective sheet is made of a woven or non-woven fabric made of one or both of 0.1 to 100 denier cotton yarn and polyester yarn. Rotation mark characterized by that.   The rotation mark according to claim 1, wherein the ink occlusion material is attached in a U-shaped cross section from the lower surface to the front and rear surfaces of the bridge piece.   The main body of the occlusion body in which the ink occlusion material is attached in a U-shaped cross section from the lower surface to the front and rear surfaces of the bridge piece, and the ink occlusion amount provided by contacting a part of the upper part of the occlusion body main body above the bridge piece is occluded. The rotation mark according to claim 1, further comprising an auxiliary ink occlusion body having an inverted U-shaped cross section larger than the body main body.   The rotation mark according to any one of claims 1 to 3, wherein the ink-permeable protective sheet is made of the same material as the back base fabric of the endless print belt.

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