KR20090005838A - Needle punching device for glass fiber adiabatic pipe forming - Google Patents

Abstract

A needle punching apparatus is provided to allow the needle punching process to be carried out normally when the molding process is carried out by using a molding roller. A needle punching apparatus comprises a moving body(6) which is installed in the information stand(4) fixed to the behind of a molding roller(2); a cam(10) of the motor(8) fixed to the behind of the moving body which is connected with the moving body by a load(12); and a needle stand(14) which is installed at the front of the moving body and has a plurality of needles(14a).

Description

Needle Punching Equipment for Glass Fiber Insulation Pipe Forming {NEEDLE PUNCHING DEVICE FOR GLASS FIBER ADIABATIC PIPE FORMING}

The present invention relates to a needle punching device for strengthening the binding force between glass fiber mats or fiber fibers by the needle punching of the insulating pipe during the molding process of the insulating pipe using a glass fiber mat.

Patent No. 274314 has already been provided for a method of manufacturing an insulating pipe using a glass fiber mat.

The patent No. 274314 is formed by forming a long glass fiber to a suitable thickness, mating it with a punch using a needle punching machine, then wound in a molding roller in the state of applying a binder to press molding at a high speed rotation under pressure of the pressure roller, This can be molded to have a high strength of binding between the tissue by using a needle-punched glass fiber mat and sufficient strength by press molding through a pressure roller.

However, the needle punched glass fiber mat used during molding may be wound around the molding roller several times depending on the thickness of the insulating pipe to be obtained, and then fixed by adhesive between mat mats, which may cause peeling when high heat is applied. Due to the development of technology, special binders with excellent adhesive strength that can withstand high heat are being developed one after another, so there is no need to worry about peeling phenomenon due to high heat.

However, if a general glass fiber mat is used instead of the needle mat, the binding force between the fibers is weak and even if the needle mat is used, utility model registration No. 307123 has been provided for the purpose of preventing the separation between mats when using a general binder. .

In the Utility Model Registration No. 307123, a needle roller, which is installed so as to be moved forward and backward on the outer side of the molding drum, is rotated in engagement with the molding drum in the process of forming the binder-coated fiber mat on the molding drum. Countless needles are densely formed so as to penetrate deep into the fibrous mat and to be agglomerated.

However, when the needle roller on the outer surface of the needle roller is penetrated deeply into the fiber mat, and the needle roller is rotated together with the forming drum to invade, the needle roller is rotated when the needle is infiltrated by the needle roller rotation. The direction of each needle and the penetration direction of the corresponding needle are not only changed, but the larger the rotational width is, the more the direction of penetration of the needle and the needle is shifted to a larger width, so that the needle has no choice but to bend or break. It is a fatal flaw that can not be counted.

An object of the present invention is to provide a needle punching device for forming a glass fiber insulation pipe to be punched more effectively without the bending or breaking of the needle when punching the glass fiber mat wound on the molding roller.

It is achieved by a needle punching device that is connected to the moving object of the present invention as described above, and the needle punching is made by the needle bar to move forward and backward by the cam of the motor.

According to the present invention, needle punching is performed by forward and backward operation of the needle roller in the pause state of the molding roller when the molding press is formed by winding multiple layers of the needle mat in the molding roller. There is no concern about quality, so the needle punching can be made normally during molding through the molding roller.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like elements are denoted by the same reference numerals as possible. It will be omitted so as not to lose.

1 is a side configuration diagram before the punching of the present invention, Figure 2 is a planar configuration diagram before the punching of the present invention, the present invention by fixing the guide 4 to the rear of the forming roller (2) for forming the insulation pipe The movable body 6 is installed on the guide 4 so as to be operated back and forth, and the movable body 6 is connected to the cam 10 and the rod 12 of the motor 8 installed at the rear thereof to operate the motor 8. To the front and rear linear movement, the front of the moving body 6 is connected to the needle bar 14 having a myriad of needles (14a) on the front surface of the needle mat wound on the forming roller (2) and pressure-molded insulation pipe (16) Is punched out.

Insulating pipe 16 needle punched by the present invention is to obtain a heat insulating pipe of the desired standard by selectively using the forming roller having the desired length and diameter and the amount of winding of the needle fiber mat. In the configuration, the needle bar 14 is formed to have the same length as at least the heat insulating pipe 16 to be molded, and each needle 14a is formed to an appropriate length according to the thickness of the heat insulating pipe 16. The length of 14) is the same length as that of the heat insulation pipe 16, and the front surface of the main body of the needle bar 14 has the appropriate height up and down while maintaining the same curvature as the heat insulation pipe. If you increase the needle punching can be made more efficiently.

However, in order to obtain a sense of stability when the needle bar 14 is formed long to the left and right, it is preferable to form a separate guide rods 18 guided to the guide bars on each side.

In the present invention, needle punching is performed by the forward and backward operation of the needle bar 14 by the motor 8 in the stopped state of the molding roller 2, and the molding roller 2 and the motor 8 are improved to improve work efficiency. May be controlled by a separate controller, or the motor 8 may be controlled by a controller of the molding apparatus. As a result, the insulating pipe is press-molded by winding a glass fiber mat in the forming roller. Since the operation is performed by a general control configuration for needle punching by the forward and backward operation of the needle bar 14 by the motor 8 during intermittent rotation of the forming roller by a timer or the like, a detailed description thereof is omitted. Let's do it.

On the other hand, the forming work of the insulation pipe proceeding prior to the needle punching work according to the present invention is first, the glass fiber mat is wound in the forming roller 2 in the forming roller 2 several times as desired thickness, and after winding, it rotates at a high speed under the pressure of the pressurizing roller. The molding pipe 16 is formed by pressure molding and dehydration of the binder and adhesion of the mat, and after the molding, the power is applied to the motor 8 in a stationary state of the molding roller 16. As the number of needles 14a on the front surface of the insulated pipe 16 penetrates deep inside the insulation pipe 16, the binding force strengthens the binding force between the fibers and the mat.

In addition, after needle punching, when the needle is separated from the insulation pipe 16 by the backward of the needle bar 14, the power of the motor 8 is cut off and the pressure bar is stopped, and then the molding roller 2 is rotated at an angle. The needle punching operation is repeatedly performed by allowing the needle bar 14 to be moved back and forth in the stationary state again. At this time, the molding roller 2 is formed based on the punching width obtained by the single punching operation of the needle bar 14. If the punching part is overlapped by adjusting the rotation angle of the needle, the needle punching can be made more closely.

Therefore, in the needle punching process, since the needle punching is performed by the forward and backward operation of the needle bar 14 in the press molding operation or in the stationary state of the molding roller 2 after the molding operation, the needle 14a and the needle There is no concern about the change of penetration angle, so the needle punching operation can be performed smoothly without bending or breaking the needle during operation.

1: Side configuration diagram before punching of the present invention

2: Plan configuration before punching of the present invention

Figure 3: Side configuration diagram when punching of the present invention

4 is a plan view of the punching of the present invention

<Description of the symbols for the main parts of the drawings>

(2)-molding roller (4)-guide

(6)-Moving Body (8)-Motor

(10)-cam (12)-rod

(14)-needle stand (14a)-needle

(16)-Insulation Pipe (18)-Guide

Claims (1)

In the needle punching device for forming a glass fiber insulating pipe configured to needle-insulate the insulating pipe formed by the forming roller, the moving body 6 is provided on a guide 4 fixed to the rear of the forming roller 2. By connecting the cam 10 and the rod 12 of the motor 8 fixedly installed at the rear of the movable body and connecting and installing the needle bar 14 having a plurality of needles 14a in front of the movable body Needle punching device for forming a glass fiber insulation pipe, characterized in that.

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