KR20050040091A - Mold for manufacturing packer using in repairing sewer pipe - Google Patents

Abstract

The present invention relates to a packer manufacturing mold for sewage pipe repair, and to provide a packer manufacturing mold for sewage pipe repair that can increase the productivity of the packer by allowing the packer to be manufactured easily and in large quantities.

Packer manufacturing mold for repairing sewage pipe of the present invention, the fixing groove 10 is formed in the center of the right end is provided with a fastening hole 14 penetrating the center; A side fixing die (20) having an insertion hole (22) into which the left end of the fixing core is inserted, and having a fastening hole (24) passing through the center thereof; From the core portion 32 and the core portion is formed in the center of the left end engaging projection 34 is inserted into the coupling groove of the fixed core and the projections 36 for forming the outlet 64 of the packer on each of the outer peripheral surface A moving core 30 having a sleeve 38 extending integrally and having a fastening hole 39 passing through the center thereof; A side moving die (40) having an insertion hole (42) into which the right end of the moving core is inserted and having a fastening hole (44) passing through the center thereof; And fastening means 50 for coupling the side fixing die, the fixing core, the moving core, and the side moving die through the fastening holes.

Description

Packer manufacturing mold for sewage pipe repair {MOLD FOR MANUFACTURING PACKER USING IN REPAIRING SEWER PIPE}

The present invention relates to a sewage pipe repair packer manufacturing mold for manufacturing a packer used for leak testing, grouting or lining construction of a sewage pipe by a non-excavation method, and particularly to a sewage pipe repair packer manufacturing mold capable of increasing the productivity of the packer. It is about.

If the sewage pipe is cracked or damaged due to aging of sewage pipe, poor connection of sewage pipe connection, construction, etc., waste water leaks from sewage pipe to the ground, causing serious environmental damage. Therefore, the broken sewer pipe should be repaired promptly, and partly repair only the damaged parts by using the whole-line lining method of repairing by inserting the synthetic resin pipe into the damaged section and the lining material such as adhesive resin and glass fiber. The method of is known.

In the former case, a complicated structure such as a pipe making machine, a cutter, and a connecting device is required, and thus, a large construction cost and a long construction period are required. In recent years, the latter method of partially repairing a camera using a traction robot and a packer equipped with a camera has been widely used. That is, in the latter method, the lining material is coated on the outside of the packer which is connected to the traction robot, and the lining material is attached by inflating the packer by compressed air in the repair part of the sewer pipe, and then when the lining material is hardened, It is a method of separating the packer from the lining material by shrinking the packer by extracting compressed air.

The packer is made of a rubber material in consideration of expansion and contraction, and there is a problem in that the productivity is lowered by manufacturing such a packer mainly by hand.

Therefore, an object of the present invention is to provide a packer manufacturing mold for sewer pipe repair that can increase the productivity of the packer by making the packer easy and mass production.

In order to achieve the above object, the sewage pipe repair packer manufacturing mold according to the present invention, the insertion grooves are formed at both ends, respectively, the outlets are formed on both sides of the center of the outer peripheral surface, and the sewage pipe repair packer manufacture for manufacturing a packer made of rubber A mold comprising: a fixed core having an outer circumferential surface formed to form a left end of the packer, a coupling groove formed at a center of a right end thereof, and having a fastening hole penetrating the center thereof; A side fixing die having an insertion hole defining a left insertion groove of the packer by having a left end portion of the fixing core inserted therein and having an inner diameter larger than an outside diameter of the left end portion of the fixing core, and having a fastening hole passing through the center thereof; A coupling protrusion is inserted into a coupling groove of the fixing core at the center of the left end, and a core portion having a protrusion for forming an outlet of the packer on both outer circumferential surfaces thereof, and integrally extending from the core portion, and the outer circumferential surface forming a right end portion of the packer. A moving core having a sleeve formed in turn and having a fastening hole passing through the center thereof; A side moving die having an insertion hole defining a right insertion groove of the packer by inserting a right end of the mobile core and having an inner diameter larger than an outer diameter of the right end of the mobile core, and having a fastening hole passing through the center thereof; And fastening means for sequentially coupling the side fixing die, the fixing core, the moving core, and the side moving core through the fastening holes.

The sewage pipe repair packer manufacturing mold of the present invention configured as described above is disposed in a cavity mold configured to form a cavity having the same shape as that, and the rubber liquid is injected into the cavity to cure, and then the cavity mold is separated and the fastening means is removed. Loosen the die and the mobile core in turn to remove the packer from the fixed die and the fixed core.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

Packer manufacturing mold for repairing sewage pipes according to the present invention, as shown in Figure 2, the insertion grooves 62, 62 are formed at both ends, the outlet 64 is formed on both sides of the center of the outer peripheral surface, respectively, packer 60 made of rubber material 1), the fixing core 10, the side fixing die 20, the moving core 30, the side moving die 40, and fastening means 50 for combining them, as shown in FIG. It is provided.

The fixed core 10 is configured such that an outer circumferential surface forms a left end of the packer 60. A coupling groove 12 into which the coupling protrusion 34 of the mobile core 30 to be described later is inserted is formed at the center of the right end of the fixing core 10, and a fastening hole penetrating in the longitudinal direction at the center of the fixing core 10. 14 is formed. In consideration of the weight reduction of the fixed core 10, the left end of the fixed core 10 may be hollow.

The side fixing die 20 is coupled to the left side of the fixing core 10. The right end of the side fixing die 20 is formed with an insertion hole 22 into which the left end of the fixing core 10 can be inserted. The insertion hole 22 has an inner diameter larger than the outer diameter of the left end of the fixed core 10, and a predetermined gap is formed, and the gap serves to form the left insertion groove 62 of the packer 60. In addition, a fastening hole 24 penetrating in the longitudinal direction is also formed in the center of the side fixing die 20.

The moving core 30 has a core portion 32 and a sleeve 38 integrally extending from the right end portion of the core portion 32. A coupling protrusion 34 is formed at the center of the left end of the core part 32 so that the mobile core 30 can be easily coupled to the right side of the fixed core 10. do. For the convenience of coupling the fixed core 10 and the mobile core 30, the coupling groove 12 is preferably enlarged toward the inlet and the coupling protrusion 34 is reduced in shape toward the tip, such as a truncated cone. Protruding portions 36 for forming outlets 64 of the packer 60 are formed on both outer circumferential surfaces of the mobile core 30, and the outer circumferential surface of the sleeve 38 forms the right end of the packer 60. In addition, a fastening hole 39 penetrating in the longitudinal direction is also formed in the center of the moving core 30. In consideration of the weight reduction of the mobile core 30, the sleeve 38 may have a hollow shape.

The side moving die 40 is coupled to the right side of the moving core 30. The left end of the side moving die 40 is formed with an insertion hole 42 into which the right end of the moving core 30, that is, the right end of the sleeve 38, can be inserted. The insertion hole 42 has an inner diameter larger than the outer diameter of the sleeve 38 of the moving core 30, so that a predetermined gap is formed, and this gap serves to form the right insertion groove 62 of the packer. In addition, a fastening hole 44 penetrating in the longitudinal direction is also formed in the center of the side moving die 40.

The side fixing die 20, the fixing core 10, the moving core 30 and the side moving die 40 are sequentially coupled by the fastening means 50, the fastening means 50 is the fastening holes ( A bolt 52 penetrates through 24, 14, 39, 44 in sequence, and a nut 54 for fixing the bolt 52 is provided.

3 is a cross-sectional view showing another embodiment of the packer manufacturing mold for sewage pipe repair of the present invention.

As shown, the screw coupling groove 12a and the screw coupling protrusion 34a are further formed in the coupling groove 12 and the coupling protrusion 34 coupled between the fixed core 10 and the mobile core 30, respectively. By the screw fastening groove 12a and the screw fastening protrusion 34a, the coupling force between the fixed core 10 and the moving core 30 is further firmed.

Next, the method of manufacturing a packer by the sewage pipe repair packer manufacturing metal mold | die of this invention comprised as mentioned above is demonstrated.

The side fixing die 20 and the fixing core 10 are fixed with the left end of the fixing core 10 inserted into the insertion hole 22 of the side fixing die 20, and the movable core is fixed to the fixing core 10. 30 are moved and combined. The mobile core 30 may maintain a stable coupling state by inserting the coupling protrusion 34 into the coupling groove 12 of the fixed core 10. Next, the side moving die 40 is moved to be coupled to the moving core 30 so that the right end of the sleeve 38 of the moving core 30 is inserted into the insertion hole 4 of the side moving die 40.

In this state, the cavity mold C as schematically shown by a dotted line in FIG. 2 is moved outside the side fixing die 20, the fixing core 10, the moving core 30, and the side moving die 40. The packer 60 may be manufactured by forming a cavity having a packer 60 shape and curing the rubber solution by injecting a rubber solution into the cavity thus formed.

In order to take out the manufactured packer 60, the cavity mold C is detached, the fastening means 50 are released, and the moving die and the moving core 30 are separated from the packer 60 in order to fix the packer 60 and the fixed die 20. It can be taken out from the core 10.

Next, the method of using the packer manufactured as mentioned above for a sewer pipe repair is demonstrated, referring FIGS.

As shown in FIG. 4, the left side insertion groove 62 of the packer 60 is coupled to the left supporter 70 provided with a guide roller 74 that can move while supporting the packer 60. Of the packer 60 is coupled to the left side of the packer 60, and the right support 72 is provided with a guide roller 74 that can move while supporting the packer 60 in the right insertion groove 62 of the packer 60. The right side is also blocked. Through the left support 70, a chemical supply pipe 84 for supplying chemicals such as an index agent and an adhesive, and a compressed air supply pipe 86 for supplying compressed air are connected, and a camera is connected to the right support 72. In addition to the 76 is installed, the traction robot 80 for moving the packer 60 is connected. The camera 82 is also installed in this traction robot 80.

For example, to check the damaged portion of the sewer pipe 90, the packer 60 is positioned at the damaged portion of the sewer pipe 90 by the traction robot 80 as shown in FIG. 4, and then the compressed air supply pipe 86 By injecting compressed air into the packer 60 through the packer 60 to expand the packer 60, the outer peripheral surface of the packer 60 is in close contact with the inner wall of the sewer pipe 90 as shown in FIG. In this state, when compressed air is pumped by the compressed air supply pipe 86 through the outlet 64 of the packer 60 to the damaged part of the sewer pipe 90, the compressed air is damaged by the sewer pipe 90 according to the degree of damage. Since the amount of outflow to the site changes and the air pressure inside the packer 60 drops, it is possible to determine the degree of damage of the sewer pipe 90. A watertight test may be performed instead of the pneumatic checking method.

As mentioned above, after grasping the damage degree of the sewer pipe 90, a grating construction or a lining construction is performed according to the damage degree.

As shown in FIG. 5, the grouting construction is performed by the medicine supply pipe 84 around the damaged portion of the sewer pipe 90 in a state in which the packer 60 is in close contact with the inner wall of the sewer pipe 90. The chemical is supplied through the outlet 64 to harden the damaged area of the sewer pipe 90 together with the chemical to form a water layer, and when repair is difficult in this way, lining construction is performed.

Lining construction is a method of attaching the lining material 92 as shown in Figure 6 on the outer peripheral surface of the packer 60 to attach the lining material 92 to the damaged portion of the sewer pipe (90). That is, a peeling material not shown is coated on the outer circumferential surface of the packer 60, and then the lining material 92 coated with chemicals for adhesion is covered thereon. As such, the packer 60 coated with the lining material 92 is moved to the damaged part of the sewer pipe 90 using the traction robot 80, and then compressed air is supplied into the packer 60 through the compressed air supply pipe 86. Inject the packer 60 by injecting. The lining material 92 coated on the packer 60 is in close contact with the inner circumferential surface of the sewer pipe 90 due to the expansion of the packer 60, and the lining material 92 is formed by a chemical applied to the lining material 92. It is adhered to the inner circumferential surface of the sewer pipe 90. After the pressurized state by the compressed air is sufficiently maintained, the attachment state of the lining material 92 can be grasped by checking the degree of curing of the lining material 92 by the air pressure or the like inside the packer 60. When it is checked that the lining material 92 is completely adhered to the inner circumferential surface of the sewer pipe 90, the compressed air supplied to the packer 60 is taken out to shrink the packer 60. The packer 60 can be easily separated from the lining material 92 by the peeling material, and the state of the sewer pipe 90 thus constructed is shown in FIG. 7.

In addition to the configuration of the fixed core 10 and the fixed die 20 and the moving core 30 and the moving die 40, as shown in Figure 8 may be produced by bending both ends of the packer inward As described above, the packer manufacturing mold for sewage pipe repair of the present invention can be variously modified without departing from the object range of the present invention.

As described above, according to the packer manufacturing mold for sewage pipe repair according to the present invention, since the packer 60 can be manufactured easily and in large quantities, the productivity of the packer 60 can be increased, thereby reducing the manufacturing cost of the packer 60. Can be.

1 is a configuration cross-sectional view showing a packer manufacturing mold for sewer pipe repair according to the present invention.

2 is a plan view showing a state in which a packer is manufactured by a packer manufacturing mold for sewer pipe repair according to the present invention.

Figure 3 is a cross-sectional view showing another embodiment of the packer manufacturing mold for sewage pipe repair according to the present invention.

4 is a view for explaining an example of using the packer manufactured by the packer manufacturing mold for sewage pipe repair according to the present invention in the sewage pipe repair.

5 is a view showing an example of a watertight test or grouting construction by a packer manufactured by a sewage pipe repair packer manufacturing mold according to the present invention.

6 is a view showing an example of lining construction by the packer manufactured in the sewage pipe repair packer manufacturing mold according to the present invention.

7 is a view showing a sewer pipe constructed by the method of FIG.

Figure 8 is a cross-sectional view showing another embodiment of the packer manufacturing mold for sewage pipe repair according to the present invention.

<Explanation of symbols for main parts of drawing>

10: fixed core, 12: coupling groove,

14, 24, 39, 44: fastener, 22, 42: insertion hole,

20: side fixed die, 30: moving core,

32: core portion, 34: engaging projection,

36: projection, 38: sleeve,

40: side moving die, 50: fastening means,

52: bolt, 54: nut,

60: packer, 62: insertion groove,

64: outlet

Claims (2)

In the mold for manufacturing sewage pipe repair packer for manufacturing the packer 60 made of rubber material and having insertion grooves 62 formed at both ends and outlets 64 formed at both centers of the outer circumferential surface thereof, respectively: A fixed core 10 having an outer circumferential surface forming a left end of the packer and having a coupling groove 12 formed at a center of the right end thereof and having a fastening hole 14 penetrating through the center thereof; The left end of the fixing core is inserted and has an inner diameter that is larger than the outer diameter of the left end of the fixing core, and has an insertion hole 22 forming a left insertion groove of the packer, and having a fastening hole 24 penetrating the center thereof. A side fixing die 20; Coupling protrusions 34 inserted into the coupling grooves of the fixing core are formed at the center of the left end, and the core parts 32 and protrusions 36 are formed integrally from each of the core parts, respectively. And a sleeve 38 having an outer circumferential surface formed to sequentially form a right end of the packer, and having a fastening hole 39 penetrating through a center thereof. The right end of the mobile core is inserted and has an inner diameter larger than the outer diameter of the right end of the mobile core, and has an insertion hole 42 for forming the right insertion groove of the packer, and includes a fastening hole 44 penetrating the center thereof. A side moving die 40; And, The packer manufacturing mold for a sewer pipe repair comprising: a fastening means (50) for sequentially coupling the side fixing die, the fixing core, the moving core and the side moving core through the fastening holes. The method of claim 1, A screw fastening groove 12a is further formed inside the coupling groove 12 of the mobile core 10, and is screwed to an outer circumference of the coupling protrusion 34 of the fixing core 30 introduced into the coupling groove 12. Fastening protrusions (34a) is further formed, the coupling groove 12 and the coupling protrusions 34, the sewage pipe repair packer manufacturing mold, characterized in that coupled by screwing.