KR200316980Y1 - Date marker for molding block - Google Patents

Abstract

The present invention relates to a date mark of a mold used to provide a hole in the molding surface of the mold and insert it into the hole in order to carve the manufacturing date, etc. on the surface of the molded product by the mold. The date display of the present invention is composed of a head (7) and a pillar (9) like a bolt, the upper surface of the head is formed with an indication groove (4a) and the inner thread 14 is formed in some section of the pillar Core 4; Inserted into the hole 104 formed in the molding surface 102 of the mold 100, the date display scale is engraved in the circumferential direction of the upper surface, and the head seating groove 12 on which the head 7 of the inner core is seated; The first hole 19 and the first hole 19 having a female screw threadable to the male screw 14 are formed on the inner wall thereof, and the lower end of the inner core has a diameter larger than that of the first hole 19. Outer core 6 of the cylindrical form having a second hole 20 extending to; An elastic member such as a rubber ring 8 introduced into the second hole 20 and coupled to the male screw 19 of the inner core; And a cover 10 coupled to the bottom opening of the outer core 6 so that the inner core 4 and the outer core 6 can be easily formed by disassembling the bolt. 102 can be separated and replaced.

Description

Date marker for molding block

The present invention relates to a mold, and more particularly, in order to inscribe a manufacturing date on the surface of a molded product by a mold, a hole is formed in the molding surface of the mold and inserted into the hole. date mark).

Molds are a common means for processing into three-dimensional shapes that require metal or synthetic resin. The means for displaying the production date or the like on the product molded by the mold is a date display (or date mark) which is the object of the present invention. 1 is a partial plan view of the mold 100 and shows a state in which a date display 2 'is fitted on its surface. The date display is composed of an outer core 6 'in the form of a cylinder, and an inner core 4' rotatably fitted therein and provided with an indication groove 4'a on an upper surface thereof. The user can rotate the inner core 4 'by inserting a driver or the like into the instruction groove 4'a.

As shown in FIG. 1, the date display 2 'is used to display the year and the month together or to display the month and the day together. To accurately mark the date of manufacture, the operator sets the date display to match the date before the work is done. When the moon changes or the sun changes, the inner core 4 'must be replaced with another 4 ". That is, the inner core 4a or the outer core 6' installed is replaced with a mold. It is inevitable that it must be removed from the 100 ') and replaced with another one.

In this regard, when the conventional date display device is to be installed, the mold 100 'has to be provided with holes 104' penetrating up and down as shown in FIG. That is, the date display fixture 2 'is made to be disassembled by inserting into the upper hole of the mold and inserting and pushing a predetermined tool into the opposite hole of the mold. In this case, in order to dismantle the date display 2 ', the mold had to be lifted from the press apparatus, and the date display 2' had to be installed to avoid the cooling hole 106 or the like normally installed in the mold. There were also restrictions on the installation location.

An object of the present invention for such a problem is to provide a date display that can be installed and dismantled (usually called a parting line type PL) from a mold surface installed in a mold. More specifically, it is an object of the present invention to provide a date display that can be easily removed and replaced from a mold, such as dismantling a general bolt or screw.

1 is a plan view of a mold provided with a date display.

2 is a cross-sectional view of a mold showing a mounting state of a date display tool of a conventional mold.

3 is a perspective view showing a date display device of the present invention.

4 is an exploded perspective view of the date display of FIG. 3.

5A is a cross-sectional view taken along the line AA ′ of FIG. 3, and FIG. 5B is a cross-sectional view illustrating a process in which the inner core is separated.

6 to 7 is a cross-sectional view according to another embodiment of the present invention.

8 is a cross-sectional view of a mold illustrating an installation state of a date display device of the present invention.

Explanation of symbols on the main parts of the drawings

2 ; Date display 4; Inner core

6; Outer core 7; head

8 ; Rubber ring 9; Pillar

10; Cover 19,20; 1st, 2nd hole

100; mold

The above object is composed of a head and a pillar, such as a bolt, the inner surface of the head is formed with an indication groove is formed with a male screw in a portion of the pillar; Inserted into the hole formed in the molding surface of the mold, the marking scale is engraved in the circumferential direction of the upper surface, and the head seating groove in which the head of the inner core is seated, and the pillar of the inner core are fitted, and the male screw is screwed to the inner wall. An outer core in the form of a cylinder having a first hole in which a female thread is formed and a second hole having a diameter larger than that of the first hole, the second hole extending continuously to a lower end thereof; An elastic member introduced into the second hole and screwed to the male screw of the inner core; And it is achieved by the date display sphere of the mold comprising a cover coupled to the lower end of the core.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 3 is a perspective view showing a date display of the present invention, Figure 4 is an exploded perspective view thereof. 5A is a cross-sectional view taken along the line AA ′ of FIG. 3, and FIG. 5B is a cross-sectional view illustrating a process in which the inner core is separated. 6 to 7 is a cross-sectional view according to another embodiment of the present invention, Figure 8 is a cross-sectional view of the mold showing the installation state of the date display device of the present invention.

The basic components of the date display device 2 of the present invention include a bolt-shaped inner core 4 and a cylindrical outer core 6 which are male and female coupled to the inner core, as in the related art. The cover 10 is fitted to the bottom of the outer core 6 is coupled. The date display device 2 of the present invention further has an elastic member such as a rubber ring 8 drawn through the lower outer core.

The inner core 4 is composed of the head 7 and the pillar 9 formed integrally with the bottom surface thereof. On the upper surface of the head 7, there is an instruction groove 4a which is recessed in an arrow shape. As described in the related art, a screw driver or the like is inserted into the instruction groove 4a to rotate the inner core. As a whole, the pillars 9 are divided in similar proportions between the portion where the male screw 14 is formed and the portion 16 that are not.

The outer core 6 in the form of a cylinder is inserted in close contact with the hole 104 drilled in the upper surface of the mold as shown in FIG. The center of the outer core is provided with the head seating groove 12 and the first and second holes 19 and 20 continuously therefrom. The head 7 of the inner core is seated in the head seating groove 12, and the pillars 9 of the inner core are fitted into the first and second holes 19 and 20. The second hole 20 has an inner diameter larger than that of the first hole 19 and extends to the lower end of the outer core 6 to form an opening. The cover 10 is fitted in the lower opening of the outer core 6. The cover 10 is usually coupled in a press-fit manner.

The inner wall of the first hole 19 is formed with a female screw that can be screwed with the male screw 14 formed in the pillar of the inner core, this may be the biggest feature of the present invention. As a result, the inner core 4 and the outer core 6 can be assembled by screwing, and the non-helix portions of the inner core 4 are completely coupled, that is, in a state in which the inner core upper surface and the outer core upper surface coincide with each other. Since the 16 is located in the first hole 19, the inner core 4 is turned out in a state in which it is coupled with the outer core 6.

On the other hand, the elastic member is fitted inside the second hole of the outer core (6). This elastic member has an inner diameter that can be fitted to the pillar of the inner core without play, and may be a rubber ring 8 having an outer diameter that is in close contact with the inner wall of the second hole. This rubber ring may be one as shown in FIG. 5 or two as shown in FIG. 6 in some circumstances.

When the inner core 4 is rotated and fitted to the center of the rubber ring 8 in a fixed state, the male screw 14 is inserted into the inner surface of the rubber ring so that the inner surface of the rubber ring is formed into a female screw shape by the material characteristic of the rubber ring. do. Meanwhile, the rubber ring 8 is in close contact with the annular upper surface 6a of the second hole in a state in which the rubber ring 8 and the inner core 4 are maximally coupled as shown in FIG. 5A, and the inner core 4 is When further rotated in the coupling direction (or right handed screw in the right direction), the rubber ring (8) causes a deformation and does not move in the longitudinal direction of the pillar (9) is to act only to press the outer surface of the pillar. As a result, the inner core 4 is rotated indefinitely in the locking direction. In this way, the operator rotates the inner core 4 in the locking direction and adjusts the direction of the indicating groove 4a to set the date. Will be.

On the other hand, when the inner core 4 is rotated in the dismantling direction (left direction in the case of the right screw), the rubber ring is in close contact with the lower end of the second hole, that is, the upper surface 10a of the cover 10 as shown in FIG. In this state, if the inner core 4 is continuously rotated in the same direction, the rubber ring 8 will push the upper surface 10a of the cover harder to the limit of its elastic force, and in response to the inner core 4 4) will be pushed upwards. Thus, the female screw of the first hole 19 and the male screw 14 of the inner core are screwed together by the force pushed upward by the rubber ring 8 (indicated by the solid line in FIG. 5B). condition). Once the male thread 14 of the inner core pillar and the female thread of the outer core first hole 19 are coupled, the operator can naturally separate the inner core 4 as if loosening a general bolt.

By changing the material, the elastic force of the elastic member (for example, the rubber ring 18) can be adjusted to adjust the tightening or dismantling force of the inner core, and by designing the angle of the interface between the non-helix part and the spiral part of the inner core column. The play in the vertical direction of the core can be adjusted.

As the elastic member of the present invention, the rubber ring 8 of FIGS. 5 to 6 is preferable and shown and described accordingly, but sometimes also in the form of a tube 8 'as shown in FIG. Can be. Furthermore, not only an elastic member using such material characteristics, but also an elastic means using a spring or the like may be used.

As shown in FIG. 8, the date display device 2 of the present invention is inserted into the hole 104 drilled to a certain depth from the molding surface 102 of the mold 100. It is not necessary to install the hole 104 through the mold 100 as shown, and after the user separates the inner core 4 by the above-described configuration, the outer core 6 is removed using a predetermined tool. ) Can be taken out.

According to the above configuration, in the date display tool of the mold consisting of the inner core and the outer core, the inner core can be easily separated from the outer core to the same extent as dismantling the general bolt. This allows the operator to easily change the date display of the mold and set it, thereby minimizing waste of time and personnel.

Claims (2)

The inner core (4) is composed of a head (7) and a pillar (9), such as a bolt, the upper surface of the head is formed with an indication groove (4a) and a male screw (14) formed in a portion of the pillar; Inserted into the hole 104 formed in the molding surface 102 of the mold 100, the date display scale is engraved in the circumferential direction of the upper surface, and the head seating groove 12 on which the head 7 of the inner core is seated; The first hole 19 and the first hole 19 having a female screw threadable to the male screw 14 are formed on the inner wall thereof, and the lower end of the inner core has a diameter larger than that of the first hole 19. Outer core 6 of the cylindrical form having a second hole 20 extending to; An elastic member introduced into the second hole 20 and coupled to the male screw 19 of the inner core; And a cover (10) coupled to the lower opening of the outer core (6). 2. The date display tool according to claim 1, wherein the elastic member is a rubber ring (18) coupled to the male thread (14) of the inner core through a shape deformation.