KR101787717B1 - Manufacturing method for pneumatic fender, vulcanizing mold for pneumatic fender, and apparatus for manufacturing pneumatic fender - Google Patents

Abstract

The present invention relates to a method for producing a pneumatic insectproof material, a vulcanizing mold for producing a pneumatic insectproof material, and an apparatus for producing the pneumatic insectproof material, and more particularly, to a pneumatic insectproof material for improving the efficiency of a vulcanization process and improving uniformity of vulcanization Method, a vulcanizing mold for manufacturing a pneumatic insectproof material, and an apparatus for manufacturing a pneumatic insectproof material.

Description

TECHNICAL FIELD The present invention relates to a pneumatic insectproof material manufacturing method, a vulcanizing mold for manufacturing a pneumatic insectproof material, and an apparatus for manufacturing a pneumatic insectproof material.

The present invention relates to a method for producing a pneumatic insectproof material, a vulcanizing mold for producing a pneumatic insectproof material, and an apparatus for producing the pneumatic insectproof material, and more particularly, to a pneumatic insectproof material for improving the efficiency of a vulcanization process and improving uniformity of vulcanization Method, a vulcanizing mold for manufacturing a pneumatic insectproof material, and an apparatus for manufacturing a pneumatic insectproof material.

Pneumatic insecticide absorbs the ship's energy to protect the ship and port structure when the ship docks to the port structure (dolphin, quay wall, etc.) in the port, absorbs the shock when the ship is moored in the sea, . In the case of a small size, it is easy to manufacture by a molding die. However, when the size is large (about 1.5M in diameter × 3M in length or more), the manufacturing method is difficult.

FIG. 1 is a perspective view of a pneumatic insectproof material, and FIGS. 2 (a) to 2 (c) are diagrams showing a manufacturing process of a conventional pneumatic insectproof material. As shown in Patent Publication No. 90-2849, a conventional method of manufacturing a pneumatic insect proof material uses a rotatable one-side support forming drum 1 as shown in FIG. 2A, and as shown in FIG. 2B, After completing the pair of insect proof materials 19a and connecting the completed insect repellent materials 19a and 19b to the left and right sides as shown in FIG. 2C, the finally connected products are connected to a vulcanization mold (2), filling the inside with air, and then vulcanizing the entire vulcanizing mold (2) into the vulcanization kiln.

In the conventional method as described above, first, a pair of insecticide materials having a size of 1/2 size is aligned to the left and right, and an appropriate amount of air is injected into the interior of the insecticide material. In the case where the setting length is long or short in the connecting operation, that is, when there is a difference in size between the vulcanization mold and the insectproof material, the appearance is folded or stretched in the final finished product state, Lt; / RTI > Secondly, there are various problems such as a decrease in price competitiveness due to an increase in manufacturing cost due to manufacturing in a three-step process other than the above-mentioned problems.

Further, according to the conventional method, in the vulcanizing process, condensed water is formed inside the vulcanizing mold, and such condensed water becomes concentrated on the bottom surface of the vulcanizing mold, causing a problem that uncured portions are generated in a part of the insectproofing material or the vulcanization efficiency is lowered there was.

The present invention aims at improving the efficiency of the vulcanization process and improving the uniformity of the vulcanization degree when the pneumatic insectproof material is manufactured.

The present invention provides a method for manufacturing a pneumatic insectproof material including a step of rotating a vulcanizing mold in order to prevent the unexcavated portion from being generated by condensation water generated during a vulcanization process of manufacturing a pneumatic insectproof material.

It is another object of the present invention to provide a method for manufacturing a pneumatic insectproof material in which a vulcanization mold includes a condensate discharge hose therein in order to remove condensate generated during a vulcanization process for manufacturing a pneumatic insectproof material.

Another object of the present invention is to provide a method for manufacturing a pneumatic insectproof material having a swivel joint connected to a drainage hose such that the drainage hose is located on the bottom surface of the vulcanizing mold even if the mold is rotated.

The present invention also includes a condensate drain hose for removing condensate generated during a curing process of a pneumatic insectproof material, wherein the condensate drain hose is connected to the condensate drain hose such that the condensate drain hose is located at the bottom of the vulcanization mold The present invention provides a vulcanization mold for manufacturing a pneumatic insectproof material further comprising a swivel joint.

The present invention also relates to a method of manufacturing a pneumatic insectproof material, which comprises a condensate drain hose for removing condensate generated during a curing process of a pneumatic insectproof material, wherein the condensate drain hose is positioned at the bottom of the vulcanized mold, Which further comprises a swivel joint connected to the hose.

In order to solve the above problems, the present invention provides a method of manufacturing a pneumatic insectproof material, comprising the steps of sequentially applying an outer rubber layer, a plurality of reinforcing layers, and an inner rubber layer to an inner wall of a vulcanization mold in an unvolatile state; And a vulcanizing step of injecting steam into the vulcanizing mold, wherein the vulcanizing step comprises rotating the vulcanizing mold during the vulcanizing step.

In this case, the vulcanized metal mold includes a condensate discharge hose connected to a flange provided at least on one side, and the condensed water formed in the vulcanized mold during the vulcanization process is discharged by the pressure difference between the inside and the outside of the vulcanized mold. And discharging the molten metal through the hose to the outside of the vulcanized metal mold.

At this time, the condensed-water discharge hose is connected to a swivel joint installed to freely rotate with respect to the vulcanized mold so that the condensed-water discharge hose is positioned at the bottom of the vulcanized mold even if the vulcanized mold rotates during the vulcanization process The present invention provides a method for producing a pneumatic insectproof material.

According to another aspect of the present invention, there is provided a vulcanization mold for manufacturing a pneumatic insectproof material, comprising: a cylindrical body; A hard plate portion provided in both directions in the body portion; A flange provided at both ends of the hard plate; A steam injection valve and a steam discharge valve connected to the at least one flange; A swivel joint connected to the at least one flange and configured to freely rotate with respect to the body; And a condensed water discharge hose disposed inside the body part and connected to the swivel joint to discharge condensed water inside the body part to the outside.

In order to solve the above problems, the present invention provides a vulcanized metal mold for manufacturing a pneumatic insectproof material; And a driving roller for rotating the vulcanizing mold, wherein the vulcanizing mold comprises: a cylindrical body portion; A hard plate portion provided in both directions in the body portion; A flange provided at both ends of the hard plate; A steam injection valve and a steam discharge valve connected to the at least one flange; A swivel joint connected to the at least one flange and configured to freely rotate with respect to the body; And a condensed water discharge hose disposed inside the body part and connected to the swivel joint to discharge the condensed water inside the body part to the outside.

A method of manufacturing a pneumatic insectproof material according to an embodiment of the present invention includes a step of rotating a vulcanizing mold during a vulcanization process of manufacturing a pneumatic insectproof material, preventing unexpected portions from occurring due to condensed water and shortening a vulcanization time, The curing efficiency can be improved.

In addition, the method of manufacturing the pneumatic insectproof material according to an embodiment of the present invention includes the step of removing the condensed water generated during the curing process of the pneumatic insectproof material by making the vulcanized mold include the condensed water discharge hose, And the vulcanization efficiency can be improved.

Further, the method of manufacturing a pneumatic insectproof material according to an embodiment of the present invention may further include a swivel joint in which a vulcanization mold is connected to the condensate discharge hose so that the condensation discharge hose is positioned on the bottom surface of the vulcanization mold even if the vulcanization mold rotates It is possible to prevent the unburnt portion from being generated by the condensed water and to improve the vulcanization efficiency.

The present invention relates to a pneumatic insecticidal material for manufacturing pneumatic insectproof materials, which comprises a condensate discharge hose for removing condensate generated during a curing process of manufacturing a pneumatic insectproof material, wherein a condensate discharge hose is connected to a swivel joint, The condensed water discharge hose can be positioned on the bottom surface of the vulcanized metal mold to prevent the occurrence of unexposed portions due to the condensed water and to improve the vulcanization efficiency.

The apparatus for manufacturing a pneumatic insectproof material according to an embodiment of the present invention includes a condensate discharge hose for removing condensate generated during a curing process of manufacturing a pneumatic insectproof material, wherein the condensate discharge hose is connected to a swivel joint to drive the vulcanization mold The condensed water discharge hose can be positioned on the bottom surface of the vulcanized metal mold to prevent the unreacted portion from being generated by the condensed water and improve the vulcanization efficiency.

1 is a perspective view of a pneumatic insectproof material according to an embodiment of the present invention.
FIGS. 2A to 2D show a manufacturing process of a conventional pneumatic insectproof material.
3 is a partial cutaway plan view showing an apparatus for manufacturing a pneumatic insectproof material used in a method of manufacturing a pneumatic insectproof material according to an embodiment of the present invention.
4 and 5 are cross-sectional views showing flanges on both sides of a pneumatic insectproof material according to an embodiment of the present invention.
Figure 6 shows an internal projection view of a pneumatic insect faucet in accordance with an embodiment of the present invention.
7 is a cross-sectional view showing a part of a process of a method for manufacturing a pneumatic insectproof material according to an embodiment of the present invention.
FIG. 8 is a detailed view of the operation of the insect repellant portion according to an embodiment of the present invention.
FIG. 9 is a view showing rotation directions of a drive roller, a vulcanization mold, and a swivel joint in a method of manufacturing a pneumatic insectproof material according to an embodiment of the present invention.
FIG. 10 shows a state of use of the pneumatic insecticide according to an embodiment of the present invention.

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

Where an element is referred to herein as being located on another element "above" or "below", it is to be understood that the element is directly on the other element "above" or "below" And that it can be intervened. In this specification, the terms 'upper' and 'lower' are relative concepts set at the observer's viewpoint. When the viewer's viewpoint is changed, 'upper' may mean 'lower', and 'lower' It may mean.

Like numbers refer to like elements throughout the several views. It is also to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise, and the terms "comprise" Or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The term " swivel joint " as used in the present invention may refer to a device including a joint of a revolvable pipe, for example, a swivel joint mounted on a vulcanization mold rotates in a direction opposite to the direction of rotation of the vulcanization mold, It can refer to a device capable of maintaining its position in the rotation of the mold.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

3 is a partial cutaway plan view showing an apparatus for manufacturing a pneumatic insectproof material applied to a method of manufacturing a pneumatic insecticidal material according to an embodiment of the present invention.

3, the apparatus for producing a pneumatic insectproof material includes a vulcanizing mold 2 for manufacturing a pneumatic insectproof material and a driving roller 18 for rotating the vulcanizing mold 2. As shown in Fig. The drive roller 18 is provided outside the vulcanization mold 2 and functions to rotate the vulcanization mold 2 when the rubber layer is formed in the vulcanization mold 2 with the rubber in the unvulcanized state as described later. At this time, the vulcanized metal mold 2 has the cylindrical body 4, the rigid plate 3 provided in both directions in the body 4, and the flanges 8a and 8b at both ends of the rigid plate 3 And a recessed portion 5 provided for mounting.

Flanges 8a and 8b can be mounted on the recessed portion 5 of the vulcanized metal mold 2. 4, the steam injection valve 6 and the steam discharge valve 7 may be connected to the flange 8a mounted at one end of the hard plate portion 3, and the hard plate portion 3 A safety valve 9 may be connected to the flange 8b mounted on the other end to mitigate damage to the product upon impact. 6, the steam injection valve 6, the steam discharge valve 7, and the condensate discharge hose 23 may all be connected to the flange 8a mounted at one end of the hard plate 3, The circulation of heat by the steam injected into the inside can be sufficiently performed as compared with the case where the steam injection valve 6 and the steam discharge valve 7 are located at the different flanges 8a and 8b respectively, , The durability of the vulcanized metal mold 2 can be improved and the manufacturing cost can be reduced. During the manufacturing process, the single flange 8a is provided with the steam injection valve 6, the steam discharge valve 7, The efficiency of the work space can be improved.

6, the vulcanized metal mold 2 may be provided with a swivel joint 24 connected to the flange 8a so as to freely rotate with respect to the body 4, and connected to the swivel joint 24 And a condensed water discharge hose 23 disposed inside the body 4 to discharge the condensed water 30 inside the body 4 to the outside. The condensed water discharge hose 23 connected to the swivel joint 24 maintains its position on the bottom surface of the body part 4 by its own load so that the condensed water 30 can be efficiently Can be discharged. At this time, the condensate discharge hose 23 is further provided with at least a part of the hose weight 25 so that when the body 4 rotates, the condensed water discharge hose 23 is held at a more fixed position on the bottom surface of the body 4 can do.

The present invention also provides a method for producing a pneumatic insecticide using the above-described apparatus for producing a pneumatic insectproof material.

When a large pneumatic insectproof material 19 as shown in FIG. 1 is to be manufactured, a worker enters the inside of the vulcanized metal mold 2 shown in FIG. 3, A flange 8 to which the steam injection valve 6 and the steam discharge valve 7 are attached as shown in Fig. 4 and a safety valve 9 can be fixed to the flange 8, respectively. The fixed bodies 22a and 22b to which the air injection valve 6 and the air discharge valve 7 are fixed are not engaged with each other so that the human body can be separated from the vulcanization mold 2 through the flanges 8a and 8b. It is possible to access the inside of the vehicle. 6, the steam injection valve 6, the steam discharge valve 7, and the condensate discharge hose 23 may all be connected to the flange 8a mounted at one end of the hard plate part 3 . In this case, the working space can be widened as compared with the case where the steam injection valve 6 and the steam discharge valve 7 are respectively connected to the different flanges 8a and 8b, Discharge, and discharge of condensed water, the operation efficiency can be improved. In the case where the vulcanization process is performed in this manner, the circulation of heat by the steam injected into the vulcanization mold 2 can be sufficiently performed, The durability of the vulcanized metal mold 2 can be improved, and the manufacturing cost can also be lowered.

Then, the outer rubber layer 10 can be formed by applying the outer rubber in the unvulcanized state while rotating the driving roller 18 provided on the outside of the vulcanization mold 2, as if it is wrapped in the vulcanization mold 2. 7, a plurality of reinforcing layers 11 (see Fig. 7) including a reinforcing layer such as a nylon or polyester cord fabric or a defogger formed with a thin rubber film for firm adhesion with the outer rubber layer 10 and the inner rubber layer 15 , 12, 13 and 14 are laminated in order by using a solvent, and finally, the unvulcanized inner rubber layer 15 can be applied and molded. At this time, the numbers of the reinforcing layers 11, 12, 13, and 14 may be different depending on the size of the product and the internal pressure of the product, and the outer rubber layer 10 for protecting the reinforcing layer against external impact, The thickness of the inner rubber layer 15 may be different.

On the other hand, the work of connecting the insectproof material of the flange 8a, 8b of the hard plate portion 3 of the vulcanized metal mold 2 to the insectproof material portion of the body portion 4 during product molding, In order to prevent stress, it is possible to work in a stepwise manner as shown in FIG.

The outer rubber layer 10, the plurality of reinforcing layers 11, 12, 13 and 14 and the inner rubber layer 15 are successively coated on the inner wall of the vulcanized metal mold 2 in the unvulcanized state and then the steam injection valve 6, The fixed bodies 22a and 22b equipped with the steam discharge valve 7, the safety valve 9 and the swivel joint 24 are coupled to the flanges 8a and 8b and the steam injection valve It is possible to carry out the vulcanization process while continuously injecting the steam of high temperature and high pressure through the pipe 6.

Here, the vulcanization is a process of changing the flexible material into an elastic material by applying sulfur (S) to the raw material and heating it to change it to an elastic material by chemical change. In the present invention, And a step of applying heat to the rubber layer to transform it into an elastic body. In the present invention, the product is pressed with the vulcanization mold 2 by the pressure of the steam to produce a product in which the outer rubber layer 10 and the inner rubber layer 15 are integrally bonded to the reinforcing layers 11, 12, 13 and 14, respectively can do.

On the other hand, as the continuous high temperature and high pressure steam is injected into the vulcanization mold 2, the condensation water 30 is generated and becomes high on the bottom surface of the vulcanization mold 2. In the portion where the condensation water 30 is lodged, , Causing a difference in total calorific value with other parts, resulting in uncharged or non-uniformity of vulcanizability.

Therefore, the applicant of the present invention has found that the efficiency of the vulcanizing process can be improved by rotating the vulcanizing mold 2 before the quality of the insectproof material is lowered by the heat loss due to the condensed water 30 which has been accumulated on the bottom surface of the vulcanizing mold 2 during the vulcanizing process It was remarkably improved.

Specifically, in the curing process, the pressure of the steam may be 4.5 to 6 kgf / cm 2 and the internal temperature of the vulcanizing mold 2 may be 110 to 180 ° C. for 8 to 40 hours. When 4 to 8 hours pass, unexpected part may occur. That is, in order to prevent the unvulcanized portion from being generated by the condensed water 30 in the vulcanization process or to lower the vulcanization efficiency, the vulcanized metal mold 2 may be rotated in units of 4 to 8 hours. For example, If the vulcanization process is performed for 12 hours, the vulcanization mold 2 may be rotated by 4 hours to rotate the vulcanization mold 2 by one cycle during the vulcanization process.

Referring to Fig. 9, the above-described driving roller 18 can be used to rotate the vulcanized metal mold 2, for example, 120 degrees at a time.

In addition, a driving unit such as a motor may be further provided so that the driving roller 18 continuously rotates, or a temperature sensor may be provided inside the vulcanizing mold 2 so that the inside of the vulcanizing mold 2, (Programmable Logic Controller) system that automatically causes the driving roller 18 to rotate when the user's temperature falls below a preset temperature.

6, the metal mold 2 includes a condensate discharge hose 23 connected to a flange 8a provided on at least one side of the metal mold 2, and the condensed water 30 formed in the metal mold 2, Can be discharged to the outside of the vulcanized metal mold (2) through the condensed water discharge hose (23) by the pressure difference between the inside and the outside of the vulcanized mold (2).

9, the condensate discharge hose 23 is connected to a swivel joint 24 provided so as to freely rotate with respect to the vulcanization mold 2, so that even if the vulcanization mold 2 rotates during the vulcanization process, The condensed water discharge hose 23 can be positioned on the bottom surface of the main body 2.

In other words, the applicant of the present invention has found that in order to prevent deterioration of the quality of the insectproof material due to heat loss due to the condensed water 30 remaining on the bottom of the vulcanization mold 2 during the vulcanizing process and to improve the uniformity of vulcanization, 2 is rotated so that the vulcanized metal mold 2 further includes a condensate discharge hose 23 connected to the swivel joint 24 so that the condensed water 30 can be continuously discharged to the bottom of the vulcanized metal mold 2. [ Thereby improving the uniformity of the vulcanization degree and reducing the vulcanization time, thereby lowering the manufacturing cost.

The insectproof material 19 having completed the vulcanizing process can perform the unloading process and can remove the pressure inside the vulcanizing mold 2 and remove the bolts of the flange mounted on the one end portion 3 of the vulcanizing mold 2, The insecticide material 19 is taken out by moving the drive truck 21 capable of being moved laterally by the rail 20 to the left and right to release the pneumatic insectproof material 19 Is completed.

The pneumatic insect repellent material 19, which has been completed, is generally connected to a chain 17 by a chain 17 as shown in FIG. 1 to protect the repellent itself, Install it.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It should be understood that the scope of the present invention is to be understood as the scope of the following claims and their equivalents.

1: forming drum 2: vulcanizing mold
3: hard plate portion 4:
5: groove portion 6: steam injection valve
7: steam discharge valve 8a, 8b: flange
9: Safety valve 10: Outer rubber layer
11, 12, 13, 14: reinforcing layer 15: inner rubber layer
16: Tire 17: Chain
18: driving roller 19, 19a, 19b: insectproof material
20: Rail 21: Driving carriage
22a, 22b: fixed body 23: condensate discharge hose
24: Swivel joint 25: Hose weight
30: Condensate

Claims (5)

A method for manufacturing a pneumatic insectproof material,
Sequentially forming an outer rubber layer, a plurality of reinforcing layers and an inner rubber layer on the inner wall of the vulcanizing mold in an unvolatile state; And
A vulcanizing process for injecting steam into the vulcanizing mold;
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The steam injected into the vulcanizing mold contacts the inner rubber layer to press the inner rubber layer toward the vulcanizing mold with the pressure of the steam,
Wherein the vulcanizing mold includes a condensate discharge hose connected to a flange provided at least on one side,
The condensed water formed inside the vulcanized mold is discharged to the outside of the vulcanized mold through the condensed water discharge hose by a pressure difference between the inside and the outside of the vulcanized mold,
And rotating the vulcanizing mold during the vulcanization process.
delete The method according to claim 1,
Wherein the condensate discharge hose is connected to a swivel joint provided so as to freely rotate with respect to the vulcanization mold so that the condensate discharge hose is positioned on the bottom surface of the vulcanization mold even if the vulcanization mold rotates during the vulcanization process. A method for manufacturing a pneumatic insectproof material.
In a vulcanizing mold for manufacturing a pneumatic insectproof material,
A cylindrical body portion;
A hard plate portion provided in both directions in the body portion;
A flange provided at both ends of the hard plate;
A steam injection valve and a steam discharge valve connected to the at least one flange;
A swivel joint connected to the at least one flange, the swivel joint being installed to freely rotate with respect to the body part; And
A condensate drain hose disposed inside the body and connected to the swivel joint, the condensate drain hose discharging condensate in the body;
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The steam injected into the vulcanizing mold is brought into contact with the inner rubber layer so that the inner rubber layer can be pressed in the direction of the vulcanizing mold by the pressure of the steam,
Wherein the condensed water discharge hose is located on the bottom surface of the vulcanized metal mold by its own weight when the vulcanized mold is rotated so that the condensed water formed inside the vulcanized mold is discharged through the condensed water discharge hose A vulcanizing mold for manufacturing a pneumatic insectproof material, which can be discharged outside the vulcanization mold.
Vulcanized molds for producing pneumatic insecticides; And
A driving roller for rotating the vulcanizing die;
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The vulcanized metal mold,
A cylindrical body portion;
A hard plate portion provided in both directions in the body portion;
A flange provided at both ends of the hard plate;
A steam injection valve and a steam discharge valve connected to the at least one flange;
A swivel joint connected to the at least one flange, the swivel joint being installed to freely rotate with respect to the body part; And
A condensate drain hose disposed inside the body and connected to the swivel joint, the condensate drain hose discharging condensate in the body;
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The steam injected into the vulcanizing mold is brought into contact with the inner rubber layer so that the inner rubber layer can be pressed in the direction of the vulcanizing mold by the pressure of the steam,
Wherein the condensed water discharge hose is located on the bottom surface of the vulcanized metal mold by its own weight when the vulcanized mold is rotated so that the condensed water formed inside the vulcanized mold is discharged through the condensed water discharge hose Wherein the pneumatic insecticide material is in a form capable of being discharged outside the vulcanizing mold.

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