JP5877454B1 - Mold cooling water flow block device - Google Patents

Abstract

Disclosed is a mold cooling water flow path shut-off device that is tight and firm when attempting to change the direction of a cooling water flow path of a mold. A fastening bolt 10 including a bolt part 11 and a head part 12, a base 70 in which a screw hole is formed so that the bolt part 11 is screwed, and the fastening bolt 10 and the base 70 are interposed. A mold cooling water passage blocking device including an elastic ring 60, an elastic ring fixing piece 50, a pressing ring 40, an extension spring 30, and a sheet member 20, and the elastic ring fixing piece 50 is an inner part of the elastic ring 60. An elastic ring fixing portion that accommodates and fixes a peripheral surface is formed on the outer peripheral edge, and the base 70 in which the screw hole is formed includes a body 80 that is insert-molded from a nylon 66 material to protect the base 70. Is a mold cooling water flow blocking device including an upper cylindrical portion, a lower cylindrical portion having an outer diameter larger than that of the upper cylindrical portion, and a stepped portion formed between the upper and lower cylindrical portions. [Selection] Figure 6

Description

  In the present invention, when trying to change the direction of the cooling water flow path of the mold, not only the cooling water flow path that must block the progress of the cooling water is hermetically blocked but also has heat resistance and durability. The present invention relates to a mold cooling water flow path blocking device.

  In general, the cooling water flow path is used to advance the cooling water in order to cool the product produced by the mold. Thus, as shown in FIG. 1, the direction change of the flow path in which the cooling water travels is performed by using the cooling water flow path blocking device 200 for the flow path 110 that should block the progress of the cooling water in the mold 100. To guide the progress to another flow path 110 that requires cooling water.

  The cooling water passage blocking device 200 having the above-described role is as shown in FIG. 2, and the configuration thereof will be described in detail as follows.

  A first metal fitting 210 having a hollow portion 211 formed at the center is provided to be inserted at a selected position of the flow path 110 formed in the mold 100 to block the progress of the cooling water. An obturator 220 that is tightly inserted into the hollow portion 211 of 210 and blocks the progress of the cooling water is provided.

  In the cooling water passage blocking device 200 having the above-described configuration, the outer peripheral surface of the first metal fitting 210 is in close contact with the flow passage 110, and the obturator 220 is tightly inserted into the inner peripheral surface of the first metal fitting 210. This will block the progress of the cooling water.

  However, the cooling water flow path blocking device 200 having the above-described configuration has a sealing force between the outer peripheral surface of the first metal fitting 210 and the flow path 110 and a seal between the inner peripheral surface of the first metal fitting 210 and the obturator 220. Since the force is not sufficient, there is a problem that the cooling water traveling through the flow path cannot be completely blocked by high pressure.

  Therefore, in order to solve the above-mentioned problems, the cooling water flow path blocking device 200 as shown in FIG. 3 is designed and used. This will be described in detail as follows.

  In order to block the progress of the cooling water by being inserted at a selected position of the flow path 110 formed in the mold 100, a through hole 231 whose diameter gradually decreases from one side to the other side is formed in the central portion. The first blocking member 230 is provided, and the second blocking member 240 that is inserted from the large diameter side to the small diameter side of the through hole 231 of the first blocking member 230 to close the through hole 231 is provided. A stepped portion 241 is formed behind the blocking device 240, and a sealing member 250 is interposed between the end portion of the first blocking device 230 and the stepped portion 241 of the second blocking device 240.

  The cooling water passage blocking device 200 configured as described above pressurizes the sealing member 250 while pushing the second blocking member 240 toward the first blocking member 230 by the water pressure of the cooling water, and the cooling water is pressed by the pressurized sealing member 250. However, this also has a problem that the airtightness is not sufficient.

Korean Patent Publication No. 10-2002-0034626 Specification Korean Patent Publication No. 10-2003-0075014 Korean Utility Model Registration No. 20-0467581 Specification

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a mold cooling water flow path blocking device that tightly and firmly blocks the mold cooling water flow path to be blocked. .

  Another object of the present invention is to provide a mold cooling water flow path shut-off device having durability that is not deformed or damaged even if heating and cooling are repeatedly performed due to the characteristics of the mold.

  Still another object of the present invention is to provide a die cooling water flow path interrupting device that can be reduced in weight by reducing the manufacturing cost by minimizing the configuration.

In order to achieve the above object, the problem solving means of the present invention comprises a fastening bolt comprising a bolt portion and a head portion, a bolt fastening body in which a screw hole is formed so that the bolt portion is screwed , and the bolt. Mold cooling water flow comprising a body 80 for protecting the fastening body 70, and an elastic ring, an elastic ring fixing piece, a pressing ring, an extension spring, and a seat member interposed between the fastening bolt and the bolt fastening body. a road blocking device, said elastic ring fixing piece, the elastic ring fixing portion accommodating and fixing the inner peripheral surface of the elastic ring is formed on an outer peripheral edge, the body 80 is insert-molded from nylon 6 6 , An upper cylindrical portion, a lower cylindrical portion having an outer diameter larger than that of the upper cylindrical portion, and a step portion formed between the upper and lower cylindrical portions.

  The mold cooling water flow path blocking device of the present invention having the above-described configuration can close and tightly block the mold cooling water flow path to be blocked as described above. There is an effect that it has durability that is not deformed or damaged even if heating and cooling are repeatedly performed, and that it is possible to achieve the purpose of reducing the manufacturing cost and weight by minimizing the configuration.

It is the schematic explaining the cooling water flow path of a metal mold | die. It is sectional drawing of the metal mold | die cooling water flow path interruption | blocking apparatus by the conventional 1st Example. It is sectional drawing of the metal mold | die cooling water flow path interruption | blocking apparatus by the conventional 2nd Example. It is a disassembled perspective view of the metal mold | die cooling water flow path interruption | blocking apparatus of this invention. It is a combined perspective view of the mold cooling water flow path blocking device of the present invention. It is sectional drawing of the application state of the metal mold | die cooling water flow path cutoff device of this invention. It is a partial section perspective view showing the state where the elastic ring of the present invention was combined with the elastic ring fixed piece. It is a partial section perspective view showing the state where the elastic ring of the present invention was combined with the elastic ring fixed piece. It is a partial section perspective view showing the state where the elastic ring of the present invention was combined with the elastic ring fixed piece. It is a perspective view showing the state where the bolt conclusion object of the present invention was separated from the body .

  Hereinafter, a mold cooling water passage blocking device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, the mold cooling water flow path blocking device of the present invention has a cooling water flow path that must block the progress of cooling water when changing the direction of the cooling water flow path of the mold. Not only hermetically shuts off, but also has chemical resistance, heat resistance and durability, so as to reduce weight, simplify components, and reduce manufacturing costs.

As shown in FIGS. 4 to 6, the basic structure of the mold cooling water flow path interrupting device as described above is the fastening bolt 10 composed of the bolt portion 11 and the head portion 12, and the body that protects the bolt fastening body 70. 80, a bolt fastening body 70 in which a screw hole 71 is formed so that the bolt portion is screwed together, an elastic ring 60 interposed between the fastening bolt 10 and the bolt fastening body 70, and an elastic ring fixing piece 50, a mold cooling water passage blocking device including a pressing ring 40, an extension spring 30, and a seat member 20, wherein the elastic ring fixing piece 50 accommodates and fixes the inner peripheral surface of the elastic ring 60. the elastic ring fixing portion 51 is formed on the outer periphery of the body 80 is insert-molded from nylon 6 6, the upper cylindrical portion 81, a large lower cylindrical portion 82 and the upper and lower outer diameter than the upper cylindrical portion The step portion 83 is formed between the side cylindrical portions.

In the mold cooling water passage blocking device of the present invention having the above-described configuration, the fastening bolt 10 including the bolt portion 11 and the head portion 12 is screwed into the screw hole 71 of the bolt fastening body 70, and In the state where the elastic ring fixing piece 50 to which the elastic ring 60 is coupled, the pressing ring 40, the extension spring 30 and the sheet member 20 are sequentially laminated between the bolt 10 and the bolt fastening body 70, the fastening bolt 10 is bolted. The elastic ring fixing piece 50, the pressing ring 40, the expansion spring 30 and the seat member 20 to which the elastic ring 60 is coupled are fixed in close contact with each other by fastening and coupling to the screw holes 71 of the fastening body 70.

  Meanwhile, it is preferable that a tool coupling hole 13 for operating the fastening bolt 10 is formed on the upper surface of the head portion 12.

  As described above, the mold cooling water passage blocking device of the present invention in which the respective components are in close contact with each other, as shown in FIGS. 4 and 6, the mold is inserted into the mold cooling water passage. The critical component for preventing the coolant from leaking through the coolant flow path and preventing the coolant from leaking is an elastic ring 60 coupled to the outer peripheral surface of the elastic ring fixing piece 50.

The principle of preventing the leakage of cooling water in the cooling water flow path by the elastic ring 60 is that when the fastening bolt 10 is firmly screwed into the screw hole 71 of the bolt fastening body 70, the coupling force is applied to the seat member 20 and the pressing ring 40. As a result, pressure is applied to the upper and lower portions of the elastic ring 60, whereby the elastic ring 60 is squeezed on both sides so as to come into close contact with the circumferential surface of the mold cooling water flow path to improve the sealing force. This will prevent water leakage.

  The elastic ring 60 having the above-described role is formed in the shape of a circular ring, and the elastic ring 60 in the shape of the circular ring is fixed to an elastic ring fixing portion 51 formed on the outer peripheral edge of the elastic ring fixing piece 50, The form of the elastic ring fixing portion 51 will be described with reference to the following first to third embodiments.

  As shown in FIG. 7 a, the first embodiment of the elastic ring fixing portion 51 has an arc-shaped groove 51 a corresponding to the inner peripheral surface of the elastic ring 60 along the outer peripheral edge of the elastic ring fixing piece 50. Since it is formed in a shape, the inner peripheral surface of the elastic ring 60 in the form of a circular ring is stably and firmly fixed to the arc-shaped groove 51a.

  The elastic ring fixing piece 50 and the elastic ring 60 can increase the sealing force of the cooling water flow path of the mold by connecting one elastic ring 60 to one elastic ring fixing piece 50. This is not only to maintain a sealing force equal to or higher than that of the conventional one using two elastic rings, but also to reduce the weight and manufacture of the mold cooling water flow path blocking device according to the present invention by simplifying the components. Cost reduction can be achieved.

  The material of one embodiment of the elastic ring 60 is preferably fluororubber (Viton). The reason for this is that fluororubber is significantly superior in heat resistance, oil resistance and chemical resistance compared to general synthetic rubber, and thus has an advantage of extending the service life.

  On the other hand, the material of the elastic ring 60 of the present invention is not limited to fluoro rubber, and any synthetic rubber having excellent heat resistance, oil resistance and chemical resistance can be used.

  Further, the configuration of the second embodiment of the elastic ring fixing portion 51 of the present invention accommodates a part of the inner peripheral surface of the elastic ring 60 along the outer peripheral edge of the elastic ring fixing piece 50 as shown in FIG. Then, an arc-shaped extension 51b to be fixed is formed, and is coupled to the extension 51b in such a manner that a part of the inner peripheral surface of the elastic ring 60 is received. As described above, the role of the elastic ring 60 coupled to the arc-shaped extension portion 51b is the same as that of the first embodiment, and therefore, a duplicate description thereof is omitted.

  Further, the configuration of the third embodiment of the elastic ring fixing portion 51 of the present invention accommodates a part of the inner peripheral surface of the elastic ring 60 along the outer peripheral edge of the elastic ring fixing piece 50 as shown in FIG. Then, a funnel-shaped extension 51c is formed to be fixed, and is coupled to the extension 51c in such a manner that a part of the inner peripheral surface of the elastic ring 60 is received. As described above, the role of the elastic ring 60 coupled to the arc-shaped extension 51c is the same as that of the first embodiment, and therefore, a duplicate description thereof is omitted.

The material of the elastic ring fixing piece 50 to which the elastic ring 60 is coupled is nylon 66, copper (Cu), or an elastic ring fixing piece 50 of copper (Cu) material that is insert- molded from nylon 66. However, it is preferable to use an elastic ring fixing piece 50 formed of nylon 66.

The reason for forming the elastic ring fixed piece 50 of nylon 66, the mold cooling water flow path shut-off device of the present invention is light weight, heat resistance is a property of the nylon 6 6, modulus, abrasion resistance, chemical This is to improve the properties and corrosion resistance.

  As a reference, the nylon 66 is produced by a dehydration condensation polymerization reaction of hexamethylenediamine and chloroadipic acid.

As shown in FIG. 4, the sheet member 20 of the present invention includes a bolt hole 22 through which the bolt part 11 of the fastening bolt 10 penetrates, a head part accommodating recess 21 that accommodates the head part 12, and an outer intermediate part to the lower end. A tapered portion 23 having a diameter that gradually decreases is formed. When the fastening bolt 10 is completely screwed into the screw hole 71 of the bolt fastening body 70, the head portion receiving recess 21 is inserted into the head portion receiving recess 21 and the head portion 12 is inserted into the head portion receiving recess 21. This prevents the upper surface of the sheet member 20 from protruding from the upper surface of the sheet member 20.

The pressing ring 40 is located on the lower side of the sheet member 20, and the pressing force generated when the fastening bolt 10 is coupled to the screw hole 71 of the bolt fastening body 70 is transmitted to the elastic ring 60. It functions to squeeze, and its configuration is formed in a ring shape in which a through hole 41 extending from the upper end to the lower end is formed.

  The pressing ring 40 having the above-described configuration has an upper end in contact with the lower end of the sheet member 20 and a lower end in contact with the upper end of the elastic ring 60.

  Further, an extension spring 30 is positioned on the tapered portion 23 formed outside the seat member 20, and the outer surface of the sheet member 20, that is, the upper surface of the tapered portion 23 and the pressing ring 40 by the fastening force of the fastening bolt 10. The outer diameter of the expansion spring 30 is expanded by the pressing force of the sheet member 20 and maintains the airtightness between the outside of the sheet member 20 and the upper surface of the pressing ring 40. do.

  The extension spring 30 is an elastic ring made of a metal material, and is preferably formed such that one side end portions are separated from each other. The reason is that when the pressing ring 40 pushes the expansion spring 30 to the external taper portion 23 of the seat member 20 at the stage where the tight contact between the seat member 20 and the pressing ring 40 is made by the fastening force of the fastening bolt 10, This is because the expansion spring 30 is easily expanded.

The bolt fastener 70 of the present invention the body 80 to protect the bolt body 70 by insert molding from nylon 6 6 is provided. The body 80 includes an upper cylindrical portion 81, a lower cylindrical portion 82 having a larger outer diameter than the upper cylindrical portion, and a stepped portion 83 formed between the upper and lower cylindrical portions.

The reason for forming the body 80 of the bolt fastener 70 by insert molding from nylon 6 6, the mold cooling water flow path shut-off device of the present invention is light weight, heat resistance is a property of the nylon 6 6, elastic modulus, This is to improve wear resistance, chemical resistance and corrosion resistance.

Since the conventional bolt fastening body 70 is made of a copper (Cu) material, there are disadvantages that are expensive and heavy, and that the sealing power is inferior. This is to extend the length.

Structure of the fuselage 80 from nylon 6 6, which serves as above, which is formed between the upper cylindrical portion 81 outside diameter than the upper cylindrical portion 81 and the larger lower cylindrical portion 82 of the upper and lower side cylindrical portion The step portion 83 is formed.

  The upper cylindrical portion 81 is fitted with the elastic ring fixing piece 50, the pressing ring 40, the expansion spring 30 and the seat member 20, and the stepped portion 83 is the elastic ring fixing piece 50 fitted with the upper cylindrical portion 81, the pressing portion The lower cylindrical portion 82 serves to support the ring 40, the expansion spring 30 and the seat member 20, and the lower cylindrical portion 82 is fitted to the upper cylindrical portion 81 supported by the stepped portion, the pressing ring 40, It serves to support the expansion spring 30 and the seat member 20.

Further, fine irregularities are formed on the outer peripheral surface of the bolt fastening body 70. The reason for forming the irregularities, after insert molding of nylon 6 6, in order to increase the molding force.

  The shape of the elastic ring 60, the pressing ring 40, the sheet member 20, and the body 80 coupled to the elastic ring fixing piece 50 described above corresponds to the shape of the mold cooling water flow path and is tightly coupled to the mold cooling water flow path. The inner diameter of the elastic ring fixing piece 50 and the through hole 41 of the pressing ring 40 may be of a size that can be fitted into the upper cylindrical portion 81 of the body 80.

  The mold cooling water flow path blocking device of the present invention as described above shuts off the cooling water flow path that must block the progress of the cooling water when trying to change the direction of the cooling water flow path of the mold. Needless to say, there are advantages in that it has chemical resistance, heat resistance and durability, and further, it is possible to reduce the weight, simplify the components, and reduce the manufacturing cost.

  INDUSTRIAL APPLICABILITY The present invention is applicable to a mold cooling water flow path blocking device that hermetically blocks a cooling water flow path that must block the progress of cooling water.

DESCRIPTION OF SYMBOLS 10 Fastening bolt 11 Bolt part 12 Head part 13 Tool coupling hole 20 Sheet member 21 Head part accommodation recessed part 22 Bolt hole 23 Tapered part 30 Expansion spring 40 Press ring 41 Through-hole 50 Elastic ring fixed piece 51 Elastic ring fixed part 51a Arc-shaped groove 51b, 51c Extension part 60 Elastic ring 70 Bolt fastening body 71 Screw hole 80 Body 81 Upper cylindrical part 82 Lower cylindrical part 83 Step part

Claims (10)

A fastening bolt ( 10 ) composed of a bolt part ( 11 ) and a head part ( 12 ), a bolt fastening body ( 70 ) in which a screw hole ( 71 ) is formed so that the bolt part is screwed, and the bolt fastening body A body (80) for protecting (70), an elastic ring ( 60 ) interposed between the fastening bolt ( 10 ) and the bolt fastening body ( 70 ) , an elastic ring fixing piece ( 50 ) , A mold cooling water passage blocking device comprising a pressing ring ( 40 ), an expansion spring ( 30 ), and a seat member ( 20 ) ,
The elastic ring fixing piece ( 50 ) has an elastic ring fixing portion ( 51 ) formed on the outer peripheral edge for receiving and fixing the inner peripheral surface of the elastic ring ( 60 ) , and the body (80) is made of nylon 6 6. from the insert molding, the upper cylindrical portion (81), that comprise a larger lower cylindrical portion (82) and the stepped portion formed between the upper and lower cylindrical portion of the outer diameter than its upper cylindrical portion (83) A mold cooling water flow path shut-off device. The elastic ring fixing part ( 51 ) has an arc-shaped groove ( 51a ) corresponding to the inner peripheral surface of the elastic ring ( 60 ) along the outer peripheral edge of the elastic ring fixing piece ( 50 ). 2. The mold cooling water flow path blocking device according to claim 1, wherein The elastic ring fixing portion (51), said elastic ring fixing piece extension of the arc-shaped accommodating and fixing the portion of the inner peripheral surface of the elastic ring along an outer peripheral edge (60) of (50) (51b) The mold cooling water flow path blocking device according to claim 1, wherein: The elastic ring fixing portion (51), said elastic ring fixing piece extension of the funnel-shaped accommodating and fixing the portion of the inner peripheral surface of the elastic ring along an outer peripheral edge (60) of (50) (51c) The mold cooling water flow path blocking device according to claim 1, wherein: Wherein the tool coupling hole to operate the fastening bolts (10) (13) is formed on the upper surface of the head portion (12), mold cooling water flow path shut-off device according to claim 1. Said seat member (20) includes a bolt hole bolt portion of the fastening bolt (11) penetrates (22), the head portion and the head portion accommodating recess for accommodating the (12) (21), an outer diameter of the lower end from the outside middle portion The die cooling water flow path blocking device according to claim 1, wherein a taper portion ( 23 ) that gradually decreases is formed. The mold cooling water flow path interrupting device according to claim 1, wherein the extension spring ( 30 ) is an elastic ring made of a metal material and end portions thereof are separated from each other. The mold cooling water passage blocking device according to claim 1, wherein the pressing ring ( 40 ) has a through hole ( 41 ) extending from an upper end to a lower end. The mold cooling water passage blocking device according to claim 1, wherein the elastic ring ( 60 ) is made of fluoro rubber. The mold cooling water flow path interrupting device according to claim 1, wherein the bolt fastening body ( 70 ) has fine irregularities formed on an outer peripheral surface thereof.