JPH03260299A - Manufacturing method of capsule for securing anchor - Google Patents

Abstract

PURPOSE:To make it possible to obtain sufficient withdrawing strength by bearing a cylindrical glass capsule body with a bottom vertically, and charging unhardened resin, a hardening agent capsule, aggregate and a heat insulating member from an opening of the upper end thereof to weld and seal. CONSTITUTION:A cylindrical glass capsule body 1 with a bottom is born vertically, and an unhardened resin 2, hardening agent capsule 4 and a part of aggregate 3 are charged into the capsule body 1 from an opening 7 of the upper end thereof. After that, a plate-like heat insulating member 11 is approximately charged tightly, and the rest of the aggregate 3' are placed thereon. The capsule body 1 is welded and sealed at a position close to the aggregate 3' placed on the heat insulating member 11. According to the constitution, it is easily manufactured and, at the same time, the maintainable efficiency thereof can be promoted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing an anchor fixing capsule used when attaching a building material to a base material such as concrete or rock.

[Conventional technology] When attaching various construction materials to concrete, rock, or other base materials, construction is quick and easy, regardless of the base material or installation location, uniform and stable adhesion force can be obtained, and earthquake resistance is achieved. Resin anchors are often used because of their excellent durability.

Such a resin anchor is composed of an anchor such as an anchor bolt or a deformed steel bar, and a capsule for fixing the anchor, which is made by sealing an uncured resin and its curing agent in a separated state together with aggregate in a cylindrical container. Insert the anchor fixing capsule into a drilled hole drilled in the base material, insert the fixed end of the anchor from above, and destroy the anchor fixing capsule by applying impact, vibration, rotation, etc. The uncured resin sealed inside, its curing agent, and aggregate are mixed together to harden the uncured resin, thereby fixing the anchor to the base material.

As a capsule for fixing an anchor used in such a resin anchor, a structure shown in FIG. 12 is known.

This capsule for fixing an anchor is formed of a cylindrical capsule body la made of a glass material, an uncured resin 2a, an appropriate amount of aggregate 3a mixed therein, and a glass capillary, and an uncured resin inside. It has a structure in which a hardening agent capsule 5a containing cured 1IJ4a of 2a is filled and sealed. As shown in FIG. 13, a bottomed cylindrical glass capsule body 1a is vertically supported, and an uncured resin 2a and a curing agent 4a of this uncured resin 2a are sealed from an opening 6a at the upper end. Put the hardening agent capsule 5a and the aggregate 3a into the capsule body la, and open the opening 6a.
The anchor fixing capsule 6, which is manufactured by melt-sealing the surrounding wall 7a with a gas burner 8a, has a cap-type capsule body because the uncured resin 2a and the like are housed in the capsule body la in a completely sealed state. The storage stability is better than that of the structure with this structure.

[Problems to be Solved by the Invention] However, in general, the uncured resin 2a is a polyester resin,
A thermosetting synthetic resin such as an epoxy resin is used, and during manufacturing, the heat of sealing acts on the uncured resin 2a in the capsule body la, causing it to deteriorate or harden, resulting in a decrease in the adhesion strength. This will result in a decline. Therefore, a portion of the peripheral wall 7a that is quite far from the surface of the uncured resin 2a is melt-sealed. Therefore, the produced capsule for anchoring has a cavity 9a of considerable length.

Therefore, not only is extra material required to form the capsule body 1a, but the length and diameter of the capsule body 1a of the capsule for anchor fixing to be used are determined depending on the anchor used. Since it depends on the size of the drilled hole, if the length of the cavity 9a is longer than the overall length, the amount of filling of uncured resin 2a, aggregate 3a, etc. will be reduced by that amount, so when driving. It may not be possible to obtain sufficient adhesion force.

The present invention has been made to solve this problem.The length of the cavity formed in the capsule body by °C2 melt sealing is extremely short, and therefore, a sufficient amount of uncured material is left over the entire length. The present invention provides a manufacturing method capable of manufacturing anchor fixing capsules filled with resin 2a and aggregate 3a.

[Means for Solving the Problems] A first means for solving the above problems is to vertically support a bottomed cylindrical glass capsule body, and pour uncured resin and hardened resin through an opening at the upper end. A configuration in which a drug capsule and aggregate are put into the capsule body so that a part of the aggregate is floating on the surface of the uncured resin, and the capsule body is melt-sealed at a location close to the aggregate; The second method is to vertically support a cylindrical glass capsule body with a bottom, insert uncured resin, curing agent capsules, and aggregate through the opening at the upper end, and then insert a plate-shaped heat insulating member. A configuration in which the capsule body is charged almost tightly to cover the surface of the input material and the capsule body is melt-sealed at a location close to the heat insulating member; It is supported vertically, and uncured resin, curing agent capsules, and part of the aggregate are introduced through the opening at the upper end. Next, a plate-shaped heat insulating member is inserted almost densely, and then the remaining bones are placed on top of it. The capsule body is melt-sealed at a location close to the aggregate placed on the heat insulating member.

[Function] When the capsule body is melt-sealed, the aggregate or the heat insulating member covers the surface of the uncured resin filled in the capsule body and prevents heat from being transmitted.

[Example code] Next, embodiments of the present invention will be described based on the drawings.

1 to 5 show an embodiment of the first invention, and as in the conventional case, first, as shown in FIG. 1, a glass capsule body 1 having a bottomed cylindrical shape is vertically shaped. As shown in FIG. 2, a predetermined amount of uncured resin 2 such as polyester resin or epoxy resin is filled into the capsule body 1 from the opening 7 at the upper end. A hardening agent capsule 4 in which the hardening agent 41 of No. 2 is sealed in a glass capillary and a predetermined amount of aggregate 3 are introduced. At this time, since the uncured resin 2 generally has high viscosity and specific gravity, the introduced aggregate 3 does not settle immediately. Therefore, as shown in FIG. 3, a part of it floats on the surface of the uncured resin 2. For example, while the capsule body l is being covered, the flame of the gas burner 9 is applied to a predetermined position of the peripheral wall 8 located slightly above the capsule body l while rotating it as shown by the arrow, and the capsule body is melt-sealed as shown in FIG. The product shown in FIG. 5 is manufactured using the following steps. According to this embodiment, when the peripheral wall 8 of the capsule body 1 is melt-sealed, the aggregate 3 covers the surface of the uncured resin 2 to prevent heat from the flame 91 of the gas burner 9 from being applied to the uncured resin 2. Therefore, it is possible to melt-seal the portion of the peripheral wall 8 close to the surface of the uncured resin 2, and it is possible to manufacture an anchor fixing capsule having an extremely short cavity 10 as shown in FIG. The method of use of this anchor fixing capsule is the same as that of conventional capsules, and it is filled with a larger amount of uncured resin 2 and aggregate 3 than conventional capsules of the same length, so it is expected to have greater fixing power. be able to.

The viscosity and specific gravity of the uncured resin 2 and the specific gravity of the aggregate 3 depend on the type and temperature used. Therefore, when melting, the aggregate 3
It is sufficient that a part of the aggregate 3 floats on the surface of the uncured resin, and the method and order of adding the aggregate 3 are not limited.

FIGS. 6 to 10 show an embodiment of the second invention. Like the embodiment of the first invention, first, as shown in FIG. The capsule body 1 is supported vertically, and a predetermined amount of uncured resin 2 such as polyester resin or epoxy resin is filled from the opening 7 at the upper end. Next, as shown in FIG. 7, a hardening agent capsule 4 in which a hardening agent 41 of an unhardened resin 2 such as benzoyl peroxide is sealed in a glass capillary and a predetermined amount of aggregate 3 are introduced into the capsule body 1.

Then, as shown in FIG. 8, for example, a disk-shaped heat insulating member 11 made of glass and having a diameter slightly smaller than the inner diameter of the capsule body 1 and in which a large number of grooves are formed in a lattice pattern is inserted into the capsule body 1. With this covering the surface of the uncured resin 2, for example, while rotating the capsule body 1 as shown by the arrow, a flame 91 of the gas burner 9 is applied to a predetermined position of the peripheral wall 8 approaching the heat insulating member 11 as shown in FIG. The product shown in FIG. 10 is produced by melt-sealing as shown. According to this embodiment, when the peripheral wall 8 of the capsule body 1 is melt-sealed, the heat insulating member 11 covers the surface of the uncured resin 2 to prevent heat from the flame 91 of the gas burner 9 from being applied to the uncured resin 2. . Therefore, it is possible to melt-seal a portion of the peripheral wall 6 near the surface position of the uncured resin 2, and it is possible to manufacture an anchor fixing capsule having an extremely short cavity 10 as shown in FIG. 1O. The method of using this capsule for fixing an anchor is the same as that of the conventional one, and the heat insulating member 11 is crushed into small pieces when the anchor is driven, and functions as an aggregate. still,
In this embodiment, a glass material is used as the heat insulating member 11, but any material that is stable against the uncured resin 2 and can be easily crushed by the impact of driving the anchor may be used. Of course, the structure may be made of other materials having a heat insulating effect, such as a thin plate of a synthetic resin having a heat-insulating effect. Further, in this embodiment, a case is shown in which the heat insulating member 11 is melt-sealed while floating on the uncured resin 2 and covering the surface. Alternatively, by forming a stepped portion for locking the heat insulating member 11 at a predetermined position on the inner wall of the capsule body 1, the heat insulating member 11 can be placed at a predetermined position without settling into the uncured resin 2. Since it can be maintained, the timing of melt-sealing can be determined freely, which further simplifies manufacturing.

FIG. 11 shows one step of an embodiment of the third invention, and shows the overall manufacturing method and operation.

The effect is almost the same as that of the previous embodiment, but in this embodiment, first, a predetermined amount of uncured resin 2, a hardening agent capsule 4 in which a hardened resin of the uncured resin 2 is sealed in a glass capillary, and a place are placed inside the capsule body 1. After a certain amount of aggregate 3 is charged, a heat insulating member 11 similar to that shown in the embodiment of the second invention is charged, and then the remaining aggregate 3 is added over the heat insulating member 11. . Therefore, when the peripheral wall 8 of the capsule body 1 is melt-sealed, the heat insulating member 11 and a large number of aggregates 3 stacked on top of each other with gaps cover the surface of the uncured resin 2 and are protected from the flame 91 of the gas burner 9. This prevents heat from being applied to the uncured resin 2. Therefore, the peripheral wall 6 closer to the surface position of the uncured resin 2
It is possible to melt-seal the parts.

[Effects of the Invention] The product manufactured according to the present invention having the above-described configuration has extremely long shelf life because the input materials such as uncured resin are sealed by melt sealing, and in addition, the amount of air remaining in the capsule body is small. Of course, this is a good thing, since the length of the cavity is extremely short and it is filled with a large amount of uncured resin or aggregate, so it can provide sufficient pull-out strength when driven. Furthermore, it is easy to manufacture and requires less raw materials, making it economically superior.

[Brief Description of the Drawings] Fig. 1, Fig. 2, Fig. 3, Fig. 4, and Fig. 5 are explanatory diagrams showing the manufacturing process in an embodiment of the first invention, Fig. 6, Fig. 7, 8, 9, and 10 are explanatory diagrams showing a manufacturing process in an embodiment of the second invention, and FIG. 11 is an explanatory diagram showing a part of the manufacturing process in an embodiment of the third invention. FIG. 12 is a longitudinal sectional view showing a product manufactured by the conventional manufacturing method, and FIG. 13 is an explanatory diagram showing a part of the manufacturing process in the conventional manufacturing method. L... Capsule body, 4... Curing agent capsule, 11... Heat insulating member 6, 2... Uncured resin, 3... Aggregate, 6... Peripheral wall, 7... Opening,

Claims (1)

[Scope of Claims] 1. A bottomed cylindrical glass capsule body is vertically supported, and an uncured resin, a hardening agent capsule, and an aggregate are introduced into the capsule body through an opening at the upper end, and the bone is A method for manufacturing a capsule for anchor fixing, characterized in that a part of the material is suspended on the surface of the uncured resin, and the capsule body is melt-sealed at a location close to the aggregate. 2. A cylindrical glass capsule body with a bottom is supported vertically, and uncured resin, curing agent capsules, and aggregate are introduced through the opening at its upper end, and then plate-shaped heat insulating members are inserted almost densely. A method for producing a capsule for fixing an anchor, characterized in that the surface of the input material is covered with the capsule body, and the capsule body is melt-sealed at a location close to the heat insulating member. 3. Support the bottomed cylindrical glass capsule body vertically,
Uncured resin, curing agent capsules, and part of the aggregate are introduced through the opening at the upper end, then a plate-shaped heat insulating member is inserted almost densely, and the remaining aggregate is added on top of it. A method for producing a capsule for anchor fixing, characterized in that the capsule body is melt-sealed at a location close to the aggregate placed on the heat insulating member.