KR101290646B1 - product method of clamp with vibration prevention hole - Google Patents

Abstract

The present invention relates to a clamp manufacturing method with a dustproof hole, in the clamp manufacturing method with a dustproof hole, the clamp manufacturing method with the dustproof hole 400 is to include a molding processing step, a vulcanization step and a finishing step The present invention provides a manufacturing method for absorbing the vibration and noise transmitted to the vibrating body and the pipe to the maximum by forming a dustproof hole in the pipe support clamp, preventing the shortening of the life of the machine structure, harmful to the human body due to noise There is a significant effect of preventing the environment.

Description

Clamp manufacturing method with dustproof hole {product method of clamp with vibration prevention hole}

The present invention relates to a clamp manufacturing method having a dustproof hole, by forming a dustproof hole in the clamp to absorb the vibration and noise transmitted to the vibrating body and the pipe to the maximum, thereby reducing the life span and noise of the mechanical structure by vibration It relates to a clamp manufacturing method is formed with a dust-proof hole characterized in that to prevent the discomfort given to the human body.

Vibration and noise not only have a close relationship with human comfort, but if left unchanged, it adversely affects the mechanical properties of the material of the vibration part (this tendency is remarkable when resonance is induced), and also causes an output error. In order to adversely affect the apparatus accompanying vibration, such as to make a variety of methods for preventing vibration in the industrial field have been known or studied. In particular, research for the prevention of vibration in the industrial field has been made for pipes such as small-diameter tubes, for example, studies to minimize the generation of vibration due to resonance in small-diameter tubes.

In particular, a plurality of small diameter pipes having various shapes are installed inside the ship, and a vibration problem caused by resonance occurs in the small diameter pipe while the dried ship is in operation. Steel pipe supports and clamps are mainly used as a means to solve the vibration problem.

As an example, according to the prior art 'elastic support member for pipe' (Registration Utility Model Publication No. 20-0254122, published on November 23, 2001), by being easily detached on a pipe such as cold, hot water pipes The present invention provides an elastic support device for pipes that can provide a dustproof and soundproofing effect at the same time as cooling and thermal insulation cover functions. The elastic support device for pipes is provided with a pair of elastic members formed of rubber material and having a seating portion in which a pipe is seated in a central portion along the longitudinal direction, and installed along the circumferential outer circumferential surface of the elastic member to support the pipe by bolts and nuts. Including a U-bend to fix the elastic member to the pipe support, it can bring about cold and warm effect at the support portion of the pipe, protect the pipe from the stretching action caused by the temperature difference, the operating device (pump, compressor) , It is described that it is possible to stably support the pipe by preventing vibration and noise generated by the generator.

In addition, according to the prior art 'pipe fixing shoe assembly' (Registration Utility Model Publication No. 20-0227446, publication date June 15, 2001), the pad shoe made of a special rubber material with excellent elasticity, insulation and insulation performance The present invention relates to a pipe fixing shoe assembly for effectively protecting a pipe by fixing and supporting various pipes installed in various facilities. The pipe fixing shoe assembly includes a pair of cylindrical pad shoes divided into sections having a thickness thicker than a radius of the pipe, and a pair of pad shoes in a fixture for installing a pipe in the facility through a support fixed to the facility. It is composed of a winding strap wrapped around the support. Therefore, since the pipe is supported and fixed by elastic pad shoes and straps having a predetermined thickness or more, mechanical performance such as durability, heat insulation, electrical insulation, and earthquake resistance of the pipe can be effectively enhanced. The pair of pad shoes are described in that a strap seat to which the winding strap is fitted is formed on each outer circumferential surface thereof.

Such a conventional technique is described in that an elastic member or pad shoe made of rubber material is wrapped around an outer circumferential surface of a pipe and fixed with a U-band or a winding strap to obtain a dust or cushioning effect.

Of course, even the rubber material alone can absorb vibration and dust, but if the rubber material is tightly tightened with a U-band or a winding strap with a bolt nut, the rubber becomes harder due to the compression of the portion in contact with the pipe, thereby reducing elasticity and elasticity.

In addition, the rubber of the compressed portion has a problem that it is difficult to expect large anti-dust effect by losing the elasticity due to shortened life and deterioration.

Therefore, the present invention has been made to solve the above problems, by forming a vibration-proof hole in the pipe support clamp to absorb the vibration and noise transmitted to the vibrating body and the pipe to the maximum, to prevent shortening the life of the machine structure To provide a manufacturing method of the clamp for supporting the pipe is formed dust-proof hole to prevent the environment harmful to humans due to noise.

The present invention relates to a clamp manufacturing method with a dustproof hole, in the clamp manufacturing method with a dustproof hole, the clamp manufacturing method with the dustproof hole 400 includes a molding process step, a vulcanization step and a finishing step It features.

The present invention provides a manufacturing method for absorbing vibration and noise transmitted to the vibrating body and the pipe to the maximum by forming a dustproof hole in the pipe support clamp, to prevent shortening of the life of the machine structure, environmentally harmful environment due to noise There is a remarkable effect of preventing.

1 is a perspective view of the clamp is formed dustproof hole of the present invention
Figure 2 is a front view of the clamp formed dustproof hole of the present invention
Figure 3 is a side view of the clamp formed dustproof hole of the present invention
Figure 4 is a perspective view of the clamp formed dustproof hole of the present invention
5 is a clamp photograph formed with a dustproof hole of the present invention
Figure 6 is a clamp mold picture of the dust-proof hole of the present invention
Figure 7 is a picture of the upper and lower press plate and the mold of the clamp is formed dustproof hole of the present invention

The present invention relates to a clamp manufacturing method with a dustproof hole, in the clamp manufacturing method with a dustproof hole, the clamp manufacturing method with the dustproof hole 400 includes a molding process step, a vulcanization step and a finishing step It features.

     In addition, the molding processing step is a step of molding the synthetic rubber manufactured to a certain thickness in the form of a clamp by a press, the upper and lower hot plates (640, 650) of the opening and closing presses are installed in the lower portion of the hydraulic press, the press A clamp mold is installed between upper and lower hot plates 640 and 650 to make a predetermined thickness, and then a plurality of synthetic rubbers manufactured as described above are put into a press mold to be molded.

In addition, the vulcanization step is a process of obtaining the desired physical properties and shape through the crosslinking reaction between the rubber and sulfur occurs when heating the molded synthetic rubber in the vulcanizer, the vulcanization step is carried out by the heat transfer method, the heat transfer method The vulcanization step is applied to the press on the lower hot plate (640, 650) while gradually applying pressure to the hydraulic press for a predetermined time, by the pressure of the press and the heat on the press, the lower hot plate (640, 650) The synthetic rubber is melted in the mold, characterized in that the synthetic rubber is filled to the corner of the mold.

The present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a clamp formed with a dustproof hole of the present invention, Figure 2 is a front view of a clamp formed with a dustproof hole of the present invention, Figure 3 is a side view of a clamp formed with a dustproof hole of the present invention, Figure 4 is formed with a dustproof hole of the present invention Clamp is a photograph, Figure 5 is a clamp photograph is formed of the dust-proof hole of the present invention, Figure 6 is a clamp mold photograph is formed of the dust-proof hole of the present invention, Figure 7 is a clamp press upper and lower heat plates and mold photograph is formed of the dust-proof hole of the present invention.

The material of the pipe support clamp of the present invention is CR (Chloroprene Rubber), SBR (Styrene Butadiene Rubber), Natural Rubber (Saturated Rubber) + SBR (Styrene Butadiene Rubber), Natural Rubber (Natural Rubber) + CR (Chloroprene Rubber) Among them, CR material is mainly used.

And when looking at the clamp production process of the present invention, it consists of a molding processing step, a vulcanization step and a finishing step.

      Synthetic rubber CR used as a clamp for forming a dustproof hole of the present invention is a basic rubber and contains chloride molecules. Moreover, it is an adhesive rubber excellent in adhesiveness and it is a crystalline rubber which solidifies when left for a long time. In addition, synthetic rubber CR is a product produced mainly on the heat resistance and can be considered as an alkaline rubber. It is a rubber raw material with excellent chemical resistance and weather resistance.

In the molding processing step of the present invention is a step of molding the synthetic rubber manufactured to a certain thickness in the form of a clamp, it is molded by a method of stamping with a press machine and cut out according to the shape using a knife.

6 and 7, the upper and lower press plates of the opening and closing type are installed in the lower portion of the hydraulic press. In addition, between the press upper and lower heat plates, an upper plate mold, a middle plate mold, and a lower plate mold clamp mold are sequentially installed.

The lower plate mold is provided with a convex portion corresponding to the anti-vibration hole and the semi-circular semicircular groove inside the upper and lower clamp bodies, and a concave portion is formed corresponding to the upper and lower clamp bodies.

In addition, the middle plate die is drilled in the shape of a clamp, and the hole rim portion protrudes to form the outer peripheral surface of the upper clamp and the U bolt fastening groove portion of the lower clamp.

The upper plate mold is provided with a convex portion and a concave portion corresponding to the convex portion and the concave portion of the lower plate mold.

Therefore, the synthetic rubber of the commercial product is pushed into a heated roller to make a firstly constant thickness, and then three synthetic rubbers are put into a press mold for molding.

At this time, the molding process is divided according to the thickness of the clamp product, for example, in the case of a product with a clamp thickness of 15mm, the product is frequently used in large quantities, and the molding process is performed by attaching a mold to the press and the cycle time is 10 seconds. It is enough.

In the case of a thick 250mm product, a small amount of the product is used by the operator to directly cut out the shape with a knife, and thus the cycle time may be 2 to 3 minutes depending on skill.

And the vulcanization step is a process of obtaining the desired physical properties and shape through the crosslinking reaction between rubber and sulfur which occurs when the molded synthetic rubber is heated in the vulcanizer.

In the vulcanizer, heat transfer is caused by the heated metal mold and hot pressurized fluid attached to the outside of the clamp, which determine the vulcanization and productivity in which the time and temperature of each part, depending on the thickness of the clamp, are directly related to the product quality. To be a major factor. This time and temperature are determined by a pre-set vulcanization step to change the temperature of the heat transfer medium, such as water vapor, water and nitrogen, supplied to the molded synthetic rubber over time.

Clamp vulcanization step is a vulcanization step by heat transfer method rather than vulcanization by heat transfer media such as water vapor, water and nitrogen due to the characteristics of thin and compact products.

In the vulcanization step by the heat transfer method, pressure is gradually applied for a predetermined time by a hydraulic press while applying heat to the upper and lower hot plates.

The synthetic rubber melts in the mold by the pressure of the press and the heat of the upper and lower heat plates of the press, and the synthetic rubber is filled to the corner of the mold, and part is overflowed out of the mold.

As described above, in the case of the 15 mm product having the thinnest clamp, the pressure of about 50 kg to 60 kg is applied to the hydraulic apparatus for about 40 seconds while heat of about 160 ° C. to 180 ° C. is applied to the hot plate of the hydraulic press. After that, the completed clamp is taken out of the mold, and the cycle time of the vulcanization step is about 2 to 3 minutes.

In addition, in the case of the product with the thickest 250mm, the clamp is completed after applying the pressure of about 50kg to 60kg for 11 minutes with the hydraulic device heated to 180 ℃ ~ 200 ℃. Will be removed from the mold. At this time, the cycle time of the vulcanization stage is about 15 minutes.

Therefore, the thicker the clamp, the higher the hot plate temperature, the longer the time for applying pressure and the longer it takes for the rubber to melt completely.

In addition, when the hot plate temperature is too high or the vulcanization time is too long, the phenomenon that the rubber is softened again occurs, the viscosity of the rubber decreases and the elasticity decreases. Thus, the thickness of the clamp is not too thick.

In addition, the last step of finishing is made by removing unnecessary rubber crumbs stuck around the clamp using scissors or a knife. In addition, the numerical inspection and visual inspection of the drawings to screen for tearing, contamination, bubbles, poor finish care. And the hardness unit of a fully cooled clamp formation film will have about 65-75.

In addition, the cycle time of the finishing step takes about 1 minute for the thinnest 15mm product and about 1 ~ 2 minutes for the 250mm thickest product.

The present invention relates to a clamp having an anti-vibration hole, the upper and lower clamps each having a semicircular semicircular groove formed on one surface such that the pipe is mounted while penetrating the center of the clamp body; And fixing means for tightening the upper and lower clamps so that the upper and lower clamps are firmly coupled to the pipe.

The fixing means includes a U bolt fastened to the upper and lower clamps, a fixing plate having two coupling holes penetrating both ends of the U bolt, and a U bolt both ends penetrating the coupling holes of the fixing plate fixed to the fixing plate. It consists of lock nuts.

As shown in Fig. 1, the upper and lower clamps each have a semicircular semicircular groove formed on one surface of the upper and lower clamps so that the circular pipe can be mounted between the upper and lower clamps, and the upper clamp is semicircular. The bottom surface is formed to have a flat surface to be supported by the top plate of the structure.

In the upper and lower clamps, a plurality of dustproof holes are formed radially around the pipe installation hole.

U bolt fastening grooves are formed on the semicircular outer circumferential surfaces of the upper clamp and both side surfaces of the lower clamp so that the U bolts can be fastened.

The circular pipe is positioned between the upper and lower clamps, and the U bolts are fastened to the U bolt fastening grooves of the upper and lower clamps, and then the lock nuts are fastened to both ends of the U bolts through the coupling holes of the fixing plate.

In addition, the fixing plate located on the bottom of the lower clamp serves as a pedestal so that the upper and lower clamps receive a uniform tightening force.

The present invention is a clamp that is fixed to the outer circumferential surface of the pipe pipe with irregular vibration by the operation of the machine, equipment, etc., to stably fix the pipe to the upper plate of the structure.

Typically the clamp is a dust-proof rubber having a hardness of 65 ~ 75, the clamp is firmly fixed to the pipe by the elasticity and tightening force of the rubber.

However, in the state where the clamp is firmly fixed to the pipe, the rubber becomes harder due to the compression of the portion in contact with the pipe, thereby lowering the elasticity. In addition, the rubber in the compressed area is shortened life and loses elasticity due to deterioration.

The present invention is to increase the function of the clamp to reduce the vibration and noise generated in the pipe, the center of the hole in which the pipe is mounted on the clamp body, a plurality of radial holes are formed radially.

The plurality of dustproof holes are formed to be located close to a hole through which the pipe of the clamp body passes.

The dustproof hole is excellent in elasticity and elasticity because the portion of the dustproof hole is formed because the air inside the vibration absorbing and buffering action.

 Therefore, the present invention reduces vibration and noise generated in the pipe by the dustproof hole as well as the clamping force of the clamp when vibration occurs in the pipe due to external impact.

In addition, the anti-vibration hole reduces the deterioration in elasticity that occurs when the clamp securely holds the pipe.

As such, the present invention increases the shock absorbing function of the clamp by the vibration hole secondly decreases the vibration and the impact of the pipe once more.

 Accordingly, the present invention relates to a clamp having a dustproof hole, by forming a dustproof hole in the clamp, by providing a manufacturing method to maximize the clamp function to absorb the vibration and noise transmitted to the pipe by the vibrating body to the maximum. In addition, it has a remarkable effect of reducing the life span of the mechanical structure and preventing the environment harmful to human body by noise.

100 pipe 200 upper clamp
300: lower clamp 400: dustproof hole
410: U bolt fastening groove 420: semi-circular groove
500: U bolt 510: Lock nut
520: fixed plate 600: mold
610: upper plate mold 620: middle plate mold
630: lower plate mold 640: press upper hot plate
650: press lower heating plate

Claims (3)

In the clamp manufacturing method having a dustproof hole, the clamp manufacturing method having the dustproof hole 400 includes a molding processing step, a vulcanizing step and a finishing step,
The molding processing step is a step of molding the synthetic rubber manufactured to a predetermined thickness in the form of a clamp by a press, the upper and lower heat press plates 640, 650 of the opening and closing type is installed in the lower portion of the hydraulic press, the press upper and lower heat plates Between (640, 650), the upper mold, the middle mold, the lower mold of the clamp mold is installed in sequence,
The lower plate mold has a convex portion corresponding to a semi-circular semicircular groove inside the dustproof hole and the upper and lower clamp bodies, and a concave portion is formed to correspond to the upper and lower clamp bodies. The upper part protrudes to form the outer circumferential surface of the upper clamp and the U bolt fastening groove part of the lower clamp. It is pushed into a roller to make a firstly constant thickness, and then three pieces of synthetic rubber are put into a press mold to be molded and processed.
The vulcanization step is a process of obtaining a desired physical property and shape through the crosslinking reaction between rubber and sulfur generated when the molded rubber is heated in the vulcanizer, and the vulcanization step is performed by an electrothermal method. The vulcanization step is to press the pressure on the press, the lower hot plate (640, 650) for a predetermined time while applying heat to the hydraulic press, synthesized in the mold by the pressure of the press and the heat on the press, the lower hot plate (640, 650). As the rubber melts, synthetic rubber is filled to the corner of the mold,
In addition, the anti-vibration clamp is formed with an upper and lower clamps each having a semi-circular semi-circular groove formed on one surface such that the pipe is mounted while passing through the center of the clamp body; Consists of fastening means for tightening the upper, lower clamp so that the upper, lower clamp is firmly coupled to the pipe,
The fixing means includes a U bolt fastened to the upper and lower clamps, a fixing plate having two coupling holes penetrating both ends of the U bolt, and locks both ends of the U bolt penetrating the coupling holes of the fixing plate with the fixing plate. Made of nuts,
Semi-circular semicircular grooves are formed on one surface of the upper and lower clamps so that a circular pipe may be mounted between the upper and lower clamps, and the upper clamp is semicircular, and the lower clamp is supported by the upper plate of the structure. Is formed to have a flat surface,
In the upper and lower clamps, a plurality of dustproof holes are formed radially around the pipe installation hole.
U bolt fastening grooves are formed on both sides of the semicircular outer circumferential surface of the upper clamp and the lower clamp to fasten the U bolts.
A circular pipe is positioned between the upper and lower clamps, and the U bolts are fastened to the U bolt fastening grooves of the upper and lower clamps, and then the lock nuts are fastened to both ends of the U bolts passing through the coupling holes of the fixing plate.
The fixing plate located on the bottom of the lower clamp serves as a pedestal so that the upper, lower clamp receives a uniform tightening force,
A plurality of dustproof holes are formed radially around the hole in which the pipe is mounted in the clamp body, and when the vibration occurs in the pipe due to external impact, not only the clamping force of the clamp but also the pipe by the dustproof hole The method of manufacturing a clamp having a dustproof hole characterized in that to increase the shock absorbing function of the clamp by secondly reducing the vibration and noise generated in the secondary. delete delete

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