JPH05208158A - Injector of adhesive for fixing anchor - Google Patents

Abstract

PURPOSE:To inject an adhesive even in a filling hole having a small diameter without spilling the same while mixing the main agent and curing agent of the adhesive in a predetermined ratio without using power when a partner material is fixed to an anchor fixed to the filling hole of a structure by the adhesive. CONSTITUTION:An extrusion mechanism 11 having cylinder containers separately filled with a main agent and a curing agent and the pistons 12, 14 inserted in said containers from the base ends thereof and simultaneously extruding the main agent and the curing agent in a predetermined ratio, the mixer 21 communicating with the cylinder containers to be connected to the leading ends of them and the nozzle pipe 31 connected to the leading end of the mixer 21 in a detachable manner are provided. The mixer 21 is constituted by providing a large number of twist plate members 22 in a tubular housing 23 so as to arrange them in one row in a state successively shifted in phase.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive injector for embedding and fixing an anchor for fixing a mating member on the surface of a structure, and more particularly to an injector suitable for an embedding hole having a small diameter. It is a thing.

[0002]

2. Description of the Related Art It is widely practiced to fix mating materials such as equipment and interior materials with screws on the surface of existing structures made of plastic materials such as concrete, brick and stone. An embedding hole is drilled and a synthetic resin adhesive is injected to embed an anchor, which is generally a bolt.After the adhesive hardens, the mating material is placed on the surface of the structure and the nut is screwed into the anchor. It is something that is fixed.

The adhesive is composed of a synthetic resin, which is the main component, and a curing agent for the adhesive. The adhesive has a property of being cured with time when mixed and left to stand, and the main component and the curing agent are easily separated. It is usual to insert a capsule-like thing enclosed in a destructible container into the embedding hole, crush the container with an anchor, mix the main agent and the curing agent, and embed the bolt as it is to fix it. See Japanese Utility Model Publication No. 47-2249).

However, in order to crush the container and mix the main agent and the curing agent, it is necessary to cause the anchor to perform a linear reciprocating motion for crushing and a rotary motion for mixing. It is extremely troublesome to mix with sufficient rotation by using a tool so that stable adhesive strength can be obtained, and it is not possible to install it in a place where power cannot be obtained, and the tip of the anchor is cut diagonally. It is necessary to process it into a shape that is easy to crush. Further, when the embedding hole has a small diameter, the container to be charged also has a small diameter, so that the amount of the main agent and the curing agent enclosed is extremely small, and sufficient adhesive strength may not be obtained.

As a countermeasure, it is conceivable to store the main agent and the curing agent separately without encapsulating them, measure and mix them just before use, and inject them into the embedding hole using a cup-shaped container. According to this means, it is not necessary to use an impact rotary power tool or an anchor with a special tip shape, but skill is required for accurate metering and injection, especially for injection without spilling into a small diameter embedding hole. Is extremely difficult and impractical for fixing a large number of anchors.

[0006]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to mix the base material of the adhesive and the curing agent at a predetermined ratio with no power and to inject them into a small-diameter embedding hole without spilling. The point is that there was no means for fixing anchors that did not have a special tip shape with sufficient adhesive strength.

[0007]

In order to solve the above-mentioned problems, the present invention comprises a cylinder container into which a main agent of an adhesive and a curing agent are separately loaded, and a piston inserted into each cylinder container from the base end. From the extrusion mechanism that simultaneously extrudes the main agent and the curing agent at a predetermined ratio, the mixer that communicates with each cylinder container and is connected to their tips, and the nozzle tube that is detachably connected to the tip of the mixer. The mixer has a structure in which a large number of twisted plate members are sequentially arranged in a row and arranged in a row and built in a tubular housing, and by such means, the main agent and the curing agent are mixed at a predetermined ratio without power, and a small diameter is obtained. Achieves the purpose of injecting into the embedding hole without spilling.

[0008]

In the cylinder container, the main agent and the curing agent are separately loaded, the extrusion mechanism is operated, and these are simultaneously extruded at a predetermined ratio and fed into the mixer. The main agent and the curing agent are divided into two parts every time they pass through the twisted plate member, and gradually become a uniform mixed state and are injected into the embedding hole from the nozzle tube at the tip, and by making the nozzle tube a small diameter, a small diameter It can be injected into the embedding hole without spilling a predetermined amount.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1, 2 are cylinder containers, 11 is an extrusion mechanism, 21 is a mixer, 31 is a nozzle tube, and two cylinder containers 1, 2 has a predetermined cross-sectional area ratio and is arranged substantially parallel to each other, and one side is loaded with a liquid synthetic resin such as an epoxy resin as a main agent, and the other side is filled with a curing agent such as a modified aliphatic polyamine. Is loaded.

These cylinder containers 1 and 2 are made of a hard synthetic resin integrally formed with a flange 3 at the base end, a connecting piece 4 in the middle, and a nozzle 5 at the tip, and a screw 6 is provided on the outer peripheral surface of the nozzle 5. Has been.

The pushing mechanism 11 comprises two pistons 12, 1
4 and piston rods 13 and 15 extending from them, a plate-shaped mounting member 16 through which the piston rods 13 and 15 freely slide, and a plate-shaped pressing body 1 fixed to their base ends.
7 and a scale 18 is provided on one piston rod 13.

The pushing mechanism 11 includes pistons 12 and 14
The cylinder member 1, 2 from the base end, and the mounting member 16
Is attached to the cylinder containers 1 and 2 by stacking the hooks 19 on the flange 3 and engaging the hooks 19 with the flange 3, and by manually pressing the pressing body 17, the pistons 12 and 14 are simultaneously driven in the forward direction at the same speed. , The main agent and the curing agent are extruded and merged into the nozzle 5 at the tip at a flow rate ratio equal to the cross-sectional area ratio of the cylinder containers 1 and 2. The flow rate, that is, the amount of adhesive to be injected into one embedding hole, is determined by observing the scale 18 and pressing the body 1.
You can know exactly by pressing 7.

The mixer 21 has a large number of twisted plate members 22 each having a twist of 180 degrees and forming a spiral path, which are sequentially arranged in a row with their edges being in contact with each other with their phases shifted by 180 degrees, and which are arranged in a tubular housing. 23, which is internally inscribed and incorporated in the device 23, and details thereof are described in US Pat. No. 3,286,9.
No. 92. The housing 23 has a stepped portion 24 at the front end that has the same diameter as the nozzle 5 but gradually becomes smaller, and these twisted plate member 22, housing 23
Is made of hard synthetic resin.

The mixer 21 is connected to the tip ends of the cylinder containers 1 and 2 in a state of being overlapped with the nozzle 5 by screwing a nut 26 fitted in the housing 23 onto the nozzle 5, and is extruded by the nozzle 5 to be pushed into the housing. The main agent and the curing agent introduced in 23 are divided into two parts every time they pass through the twisted plate member 22, and mixed each time to finally adjust the adhesive in a substantially uniform mixed state with no power.

The nozzle tube 31 is made of metal, and an enlarged thread 32 is provided on a base end enlarged portion 32, and an axial groove 34 is formed across the internal thread 33.

The nozzle tube 31 has an enlarged portion 32 and a step portion 24.
The internal thread 33 is screwed to the stepped portion 24 as it is while being screwed by being pushed into the mixer 21 by being fitted into the mixer 21, and is connected to the mixer 21. Eject and screw with a small force. The nozzle tube 31 has a diameter smaller than that of the step portion 24 and can be easily inserted into the embedding hole having a small diameter, so that the adhesive can be injected without spilling around.

When all the main components and curing agents in the cylinder containers 1 and 2 have been extruded, the extrusion mechanism 11 and the mixer 21 are removed from the cylinder containers 1 and 2, and new cylinder containers 1 and 2 are removed.
And continue the adhesive injection work. Therefore, it is possible to prepare a plurality of cylinder containers 1 and 2 loaded with the main agent and the curing agent, and replace them as cartridges for use. In addition, since the mixer 21 can be removed from the cylinder containers 1 and 2, the mixture of the main agent and the curing agent that remains full after the work can be easily removed before the curing is started.

Further, since the nozzle tube 31 can be removed from the mixer 21, when the nozzle tube 31 is injected into a large-diameter embedding hole, the nozzle tube 31 is removed to reduce flow resistance, and a large amount of adhesive can be removed in a short time. It can be used properly depending on the diameter of the embedding hole such as injection.

It should be noted that the number of cylinder containers 1 and 2 is three depending on the mixing ratio of the main agent and the curing agent, two of them are loaded with the main agent, and one is loaded with the curing agent. Is. In addition, the push-out mechanism 11 includes the piston rod 1.
It is possible to use an appropriate one that uses a manual force, such as converting the rotational force into an extruding force using a lever without directly pressing 3,15.

[0020]

According to the present invention, the main agent and the curing agent are loaded in separate cylinder containers in a state of being isolated from each other, and these are mixed at a predetermined ratio corresponding to the cross-sectional area ratio or the number ratio of the cylinder containers by the extrusion mechanism. Since it is extruded into a vessel and mixed with no power and injected from the nozzle tube into the embedding hole, it is possible to always inject an adhesive consisting of a predetermined ratio of the mixture in a place where power cannot be obtained without requiring skill. .. In particular, since the nozzle tube can inject an appropriate amount without spilling into the small diameter embedding hole, not only can the anchor be embedded and fixed with sufficient adhesive strength, but the nozzle tube can also be removed, so the large diameter embedding hole On the other hand, by removing this, a large amount of adhesive can be injected in a short time to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view in which a part of FIG. 1 is omitted.

FIG. 3 is a vertical sectional view of a nozzle tube.

[Explanation of symbols]

 1, 2 Cylinder container 11 Extrusion mechanism 12, 14 Piston 21 Mixer 22 Twist plate member 23 Housing 31 Nozzle tube

Claims (2)

[Claims] 1. An extrusion system having a cylinder container into which an adhesive main agent and a curing agent are separately loaded, and a piston inserted into each cylinder container from a base end thereof to simultaneously extrude the main agent and the curing agent at a predetermined ratio. A mechanism, a mixer that communicates with each of the cylinder containers and is connected to their tips, and a nozzle tube that is detachably connected to the tip of the mixer, and the mixer includes a large number of twisted plate members. An anchor injection adhesive injector, characterized in that it is structured such that the phases are sequentially shifted and arranged in a line to be housed in a tubular housing. 2. The housing of the mixer is made of synthetic resin, and the nozzle tube is made of metal having a female thread at the base end, and the nozzle tube is threadedly connected to the tip of the mixer by threading the female thread. The injector of the anchor fixing adhesive according to claim 1.