JP3148906U - Stamper - Google Patents

Abstract

A stamper is provided which can maintain a stable marking surface level and can improve the printing quality by making the printing pressure uniform on the left, right, center and top and bottom of the marking surface. A portal frame 10 having an ink pad 13 on a top flat portion 11 and guide slits 15a and 15b formed on both side plate portions 14a and 14b, and a guide slit in a form sandwiching both side plate portions. It is attached to the portal frame so as to be movable, and along with the movement, the plate type font (type body holding portion) is moved from the initial position in contact with the ink pad 13 toward the printing medium and simultaneously rotated 180 degrees to be marked. A stamper provided with a moving body 20 that strikes and prints the font, and the protrusions 18a to 18d sandwiching the four corners of the print body holding portion when the print body holding portion rotates 180 degrees and prints on the print target body. It forms in the lower end inner side of the both-sides board part 14a, 14b of a portal frame, respectively. [Selection] Figure 1

Description

  The present invention relates to a stamper that prints on a product (printed body) with ink applied to a rubber stamp, and more particularly to a stamper that can improve printing quality.

A stamper (self-inking stamp) that prints on a product (printed body) with ink applied to a rubber stamp displays the display contents such as manufacturing date, expiry date, lot number, and product name relatively frequently at production sites and product management departments. Used for changing purposes. According to this stamper, it is not necessary to supply ink manually on the stamp table every time, and the ink can be automatically supplied to the rubber type. That is, the stamper has a feature in that it can automatically perform two tasks of automatic ink supply and printing on a product in a series of flows. Further, the rubber type of the stamper can be easily exchanged, and various rubber types are prepared, and there is a feature that can flexibly cope with a small amount of various types of printing. In addition, there are several types of ink, and there is a feature that can be printed on cardboard, plastic, metal, etc. by changing the ink pad according to the material of the product.
The stamper is structurally 1) a portal frame with an ink pad on the top flat part and guide slits formed on both sides of the plate, and 2) a guide slit sandwiching both sides of the portal frame. Is attached to the portal frame so as to be movable along the plate, and along with the movement, the plate-like type body is moved from the initial position in contact with the ink pad toward the printing body, and simultaneously rotated 180 degrees to strike the printing body. A moving body for printing is provided.

In such a stamper, the decisive factor for realizing high-quality printing is that the stamp surface (printed surface) can be stably maintained horizontally at the final stage. However, with the conventional stamper, it is not possible to maintain the stamping surface stably and horizontally at the final stage, and as a result, the printing pressure on the left, right, center, and top and bottom of the stamping surface becomes uneven, which is reflected in the blur. There is a problem that printing deviation, printing unevenness, etc. occur and the printing quality deteriorates.
From the above, the object of the present invention is to enable stable horizontal maintenance of the printing surface in the final stage, and to improve the printing quality by making the printing pressure uniform on the left, right, center, and top and bottom of the printing surface.

  According to the present invention, according to the present invention, a gate-shaped frame having an ink pad on the top flat part and having guide slits formed on both side plate parts, and moving along the guide slits sandwiching the both side plate parts. A movable body that is attached to the gate-shaped frame and is capable of moving the plate-shaped body from the initial position in contact with the ink pad toward the printing body along with the movement, and simultaneously rotating the printing body by 180 degrees to print on the printing body. In the stamper, this is achieved by forming protrusions sandwiching the four corners of the type body holding member when the type body rotates 180 degrees and prints on the printing medium on each of the both side plates of the portal frame.

  Further, according to the present invention, the above-described object is to provide a gate-type frame having a gate-shaped outer shape and a movably attached to the gate-type frame so that a flat type font is directed from the initial position toward the print target. In a stamper provided with a moving body that is moved and rotated 180 degrees to print on the printing medium, the gate-type frame includes a shaft in which the operation knob of the moving body is inserted into the top flat portion, and a top flat portion. An ink pad for supplying ink to the typeface on the back side, guide slits formed on both side plate portions for guiding the moving body downward, and movement of the moving body with the downward movement of the moving body between the side plate portions on both sides. An operation knob comprising two cylindrical support shafts for rotating the font 180 degrees, and a cylindrical portion in which the movable body is inserted into the shaft of the portal frame and a return spring is fitted. , Top flat The operation knob is fixed to the gate, the gate-shaped bifurcated portion having a shape sandwiching both side plates of the gate-shaped frame, the flat plate-shaped font is held on the back of the bottom, and the gate-shaped frame is formed on both sides of the standing frame. A concave swing part formed with two grooves for rotating the typeface 180 degrees by sequentially engaging with the two rotation support shafts in the direction of the printing medium and holding the swinging part rotatably. And a rod that engages with the guide slits formed on both side plate portions of the portal frame and is fixed to the bifurcated portion of the portal frame bifurcated portion. Each is achieved by forming protrusions that sandwich the four corners of the swing portion when the typeface rotates 180 degrees and prints on the printing medium.

  According to the present invention, when the typeface is rotated 180 degrees and printed on the printing medium, the projections sandwiching the four corners of the holding member of the typeface are formed on each of the both side plates of the portal frame. Thus, it was possible to maintain a stable printing surface level, and to improve printing quality by making the printing pressure uniform on the left, right, center, and top and bottom of the printing surface.

FIG. 1 is a perspective view of a stamper (self-inking stamp) of the present invention, and FIG. 2 is a perspective view of a swing portion.
The stamper is roughly divided into a portal frame 10 and a movable body 20 that is movably attached to the portal frame and prints.
The gate-shaped frame 10 has a gate-shaped frame outer shape, and a shaft 12 into which an operation knob is inserted is fixed to the top flat portion 11, and an ink pad 13 for supplying ink to the typeface is provided on the back side of the top flat portion. It is installed. Guide slits 15a and 15b for guiding the movable body 20 downward are formed in the side plate portions 14a and 14b on both sides, and the printed body is rotated 180 degrees between the side plate portions as the movable body 20 moves downward. The two rotation support shafts 16a and 16b are attached in place. The top flat portion 11 and both side plate portions 14a and 14b are integrally framed with a material such as stainless steel, and the top flat portion 11 is formed in a box shape by bending the side downward, and an ink pad 13 is formed on the box portion. Can be attached detachably. Reference numeral 13a denotes a gripping portion that is pushed down when the ink pad 13 is removed and pushed up when the ink pad 13 is attached. Reference numerals 17a and 17b denote reinforcing rods fixed between the side plate portions 14a and 14b. It should be noted that the protrusions 18a to 18d are formed at two locations on the left and right sides of the side plate portions 14a and 14b, and the function thereof will be described later.

The moving body 20 is attached to the portal frame 10 so as to be movable along the guide slits 15a and 15b so as to sandwich the both side plate portions 14a and 14b, and the plate type font is brought into contact with the ink pad 13 along with the movement. It has a structure in which it is moved from the initial position toward the printing medium and simultaneously rotated 180 degrees to strike and print the printing medium (product).
That is, in the moving body 20, the operation knob 21 includes a cylindrical portion CRY inserted into the shaft 12 of the portal frame 10 and fitted with a return spring, and the portal bifurcated portion 22 includes a top flat portion 22a and a bifurcated portion. 22b and 22c, the operation knob 21 is fixed to the top flat portion 22a, and the forked portions 22b and 22c are formed so as to sandwich the side plates 14a and 14b of the portal frame. When the operation knob 21 is pushed downward, the operation knob 21 and the gate-shaped bifurcated portion 22 are united and move along the guide slits 15a and 15b of the side plates 14a and 14b against the urging force of a return spring (not shown). It is like that. If the pushing force of the operation knob 21 is weakened, the operation knob 21 and the gate-shaped bifurcated portion 22 are returned to the illustrated position by the urging force of the return spring. A concave swinging portion 23 attached to the gate-shaped bifurcated portion 22 by a rod, which will be described later, includes a flat plate-like character holder 24 formed of rubber on the bottom back surface 23a as shown in detail in FIG. Two grooves 23d and 23e are formed in 23b and 23c. The grooves 23d and 23e are for sequentially engaging with the two rotary support shafts 16 and 17 of the portal frame 10 in the direction of the printing medium to rotate the type holder 24 by 180 degrees. The swing portion 23 is rotatably held by a rod 25 (not visible in FIG. 1). The rod 25 engages with guide slits 15a and 15b formed on both side plates of the portal frame, and is bifurcated. The tip 22 of the bifurcated portion 22b, 22c of the portion 22 is fixed by a drop prevention fitting 25d. Therefore, when the operation knob 21 is pushed downward, the gate-shaped bifurcated portion 22 is integrally moved along the guide slits 15a and 15b, and the rod 25 fixed to the distal ends of the bifurcated portions 22b and 22c is also moved downward. As a result, the swing part 23 moves downward. Then, as the swing part 23 moves, the grooves 23d and 23e of the swing part 23 sequentially engage and rotate with the two rotary support shafts 16 and 17 of the portal frame 10, and the type holding member 24 is rotated 180 at the lowermost position. The print medium can be struck and rotated to print.

  FIG. 3 is an explanatory diagram of a plate-type character holder 24 made of rubber and a rubber letter body. The surface of the type holder 24 is uneven at a predetermined interval in the horizontal direction. Similarly, the back surface of the type 26 is also uneven, and the type 26 can be easily fitted to the type holder 24. Therefore, predetermined printing can be performed on the printing medium by the stamper by fitting the predetermined printing body at a proper position of the printing body holder 24. When fitting the typefaces, the operating knob 21 is pushed downward to rotate the swing part 23, that is, the type holding body 24 by 180 degrees, and the hook part 19 (see FIG. 1) is formed with a groove part 25e formed in the bifurcated part 22b. And the return of the operation knob 21 is restricted, and in this state, the type body 26 is set on the type holder 24 using tweezers.

  FIG. 4 is an exploded perspective view of each part of the stamper of the present invention, and the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals. Reference numeral 21a denotes a return spring. Further, the swing part 23 and the type holder 24 are integrally fixed with an adhesive.

  FIG. 5 is an explanatory view of the downward movement and rotation principle of the swing part 23. It should be noted that the rod 25 engages with guide slits 15a and 15b formed on both side plates 14a and 14b (see FIG. 1) of the portal frame, and the bifurcated portion 22b of the portal bifurcated portion 22; It is fixed to the front end portion of 22c by a metal fitting 25d, and when the operation knob 21 is pushed downward and moved, it moves along the guide slits 15a and 15b integrally with the gate-shaped bifurcated portion 22. is there.

  In the initial position of FIG. 5A, the swing unit 23 maintains a horizontal state with the type holding member 24 in the upward direction. In this initial position, ink is supplied from the ink pad 13 (see FIG. 1) to the type body of the type holder 24. In this initial state, when the pushing down of the operation knob 21 is started, the swing portion 23 is lowered together with the rod 25, but the first groove portions 23d and 23d formed in the both side standing portions 23b and 23c are immediately formed on the portal frame 10. Engaging with the first rotation support shaft 16a, the swing part 23 descends and at the same time starts rotating clockwise with the rotation support shaft 16a as the rotation axis. When the lowering of 1/2 of the entire stroke is completed, the swing part 23 rotates 90 degrees as shown in FIG. 5B, and the engagement between the groove parts 23d and 23 and the first rotation support shaft 16a. Mismatch. However, this time, the second groove portions 23e and 23e formed in the both-side standing portions 23b and 23c engage with the second rotation support shaft 16b positioned below the first rotation support shaft 16a. For this reason, when the pushing down of the operation knob 21 is further continued, the swing part 23 descends and further continues to rotate in the clockwise direction with the rotation support shaft 16b as the rotation axis. When the lowering of all strokes is completed, as shown in FIG. 5C, the swing portion 23 rotates 180 degrees in total, and the grooves 23d and 23d are disengaged from the second rotation spindle 16b. At this time, the swing unit 23 maintains a horizontal state in which the type holder 24 is in the downward direction, and the type body of the type holder 24 strikes the product (printed part) and printing is performed. Although not shown in FIG. 5C, the four corners C1 to C4 of the swing part 23 are sandwiched by protrusions 18a to 18d (see FIG. 1) formed on both side plates 14a and 14b of the portal frame. The horizontal state is stably maintained so as not to swing, and the printing quality can be improved.

FIG. 6 is an explanatory diagram of an actual printing process. FIG. 6A is an initial state, and ink is supplied from the ink pad 13 to the typeface of the type holder 24. (B) is a state where the operation knob 21 is pushed in about 1/4 of the entire stroke, and the swing part 23 and the type holder 24 are rotated together by about 45 degrees. (c) is a state where the operation knob 21 is pushed in about 3/4 stroke of the entire stroke, and the swing portion 23 and the type holder 24 are rotated together by about 135 degrees. (D) is a state in which the operation knob 21 is pushed in all the strokes, the swing part 23 and the type holder 24 are rotated together by 180 degrees, and the swing part 23 is in a horizontal state with the type holder 24 in the downward direction. Is maintained. In particular, in this state, as can be seen from the drawing, the protrusions 18a to 18d formed on the both side plate portions 14a and 14b of the portal frame are located at the four corners of the swing portion 23, that is, both ends of the left and right standing portions 23b and 23c. In other words, the swinging portion 23, in other words, maintains the type holding body 24 stably and horizontally and prevents shaking. As a result, when the typeface of the typeface holder 24 strikes and prints the product (printed portion), the printing pressure on the entire printing surface becomes uniform and does not fluctuate, so that the print quality can be improved. become.
As described above, according to the present invention, a total of four protrusions are formed on the left and right sides of the side plate part of the portal frame, and the swing part is reversed by the protrusions so that the position is horizontal immediately before printing. In order to maintain the horizontal state, the projecting portion serves as a wall and supports the left and right ends of the rotating body, whereby the swing of the swing portion can be minimized. As a result, printing was possible with the typeface kept horizontal, and high-quality printing could be achieved.

It is a perspective view of the stamper (self-inking stamp) of this invention. It is a perspective view of a swing part. It is explanatory drawing of the flat type | mold type holding body formed with rubber | gum, and the typeface made from rubber | gum. It is an exploded perspective view of each part of the stamper of the present invention. It is a downward movement and rotation principle explanatory drawing of a swing part. It is explanatory drawing of an actual printing process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Gate type frame 11 Top part flat part 12 Shaft 13 Ink pad 14a, 14b Both-sides board part 15a, 15b of portal type frame Guide slit 16a, 16b Rotation spindle 18a-18d Protrusion part 20 Moving body 21 Operation knob 22 Portal type bifurcated part 22a Top flat portion 22b, 22c Forked portion 23 Swing portion 23a Bottom back surface 23b, 23c Both side standing portions 23d, 23e Groove 24 Type holder 25 Rod 26 Rubber type

Claims (2)

A gate-type frame provided with an ink pad on the top flat part and formed with guide slits on both side plate parts, and attached to the gate-type frame movably along the guide slits sandwiching the both side plate parts, In the stamper provided with the moving body that moves the plate type print body from the initial position in contact with the ink pad toward the printing body and simultaneously rotates it 180 degrees and prints on the printing body.
The stamper is characterized in that protrusions sandwiching the four corners of the type body holding member when the type body rotates 180 degrees and prints on the printing medium are formed on both side plates of the portal frame. A gate-shaped frame having a gate-shaped outer shape, and a movably attached to the gate-shaped frame, and a plate-shaped type body is moved from the initial position toward the printing body and rotated 180 degrees. In a stamper with a moving body that prints on
The gate-type frame is formed on a shaft on which an operation knob of the moving body is inserted into a top flat portion, an ink pad for supplying ink to a printed body on the back side of the top flat portion, and a plate portion on both sides. A guide slit, and two rotation support shafts for rotating the typeface 180 degrees with the downward movement of the movable body between the side plate portions on both sides,
The movable body includes an operation knob having a cylindrical portion inserted into the shaft of the portal frame and fitted with a return spring, and the operation knob is fixed to a top flat portion, and both sides of the portal frame are fixed. A gate-shaped bifurcated portion having a shape sandwiching the side plate portion, the flat-type printed body is held on the back surface of the bottom portion, and the two side-supported portions are moved in the direction of the printing body and the two rotation support shafts of the portal frame. A concave swing part formed with two grooves for sequentially engaging and rotating the typeface 180 degrees, and the guide formed on both side plates of the portal frame while rotatably holding the swing part. A rod that engages with each slit and is fixed to the bifurcated portion of the gate-shaped bifurcated portion;
A stamper formed on each of both side plate portions of the portal frame is formed with protrusions that sandwich the four corners of the swing portion when the typeface rotates 180 degrees and prints on the printing medium.

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