KR102041831B1 - Apparatus for manufacturing core - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a core, which comprises: a core forming unit configured to continuously manufacture a forming core by using molding sand that is inputted; and a transfer unit configured to receive and transfer the forming core manufactured from the core forming unit.

Description

Chinese character manufacturing device {APPARATUS FOR MANUFACTURING CORE}

The present invention relates to a core manufacturing apparatus, and more particularly, to a core manufacturing apparatus capable of discharging the molded core, which is capable of continuous molding of the core at the same time, safely and quickly.

The casting method, which is one of methods for manufacturing a metal molding, is a traditional molding method including a step of slowly cooling the molten metal into a previously prepared molding mold. The mold is made of sand (cast sand) or metal and has an internal space reflecting the shape of the molding to be manufactured.

In addition, the mold may need only an outer frame depending on the shape of the molding to be produced, and sometimes an inner frame (hereinafter referred to as a core) to be mounted in the outer frame. The core is used when a hollow part is to be formed in the molding.

However, since the core is placed in the internal space of the mold, it is immersed in the molten metal at the time of injection of the molten metal and is in contact with the high temperature. It should be breathable. In addition, it must have a cohesive enough to not deform or break due to the physical pressure of the molten metal during pouring.

In order to satisfy the various conditions required for the molding sand as described above, a polyurethane-based binder may be added to the molding sand during the molding operation of the core. The binder is a chemical for increasing the binding force between the grains of sand.

On the other hand, the core molding apparatus is used in order to manufacture the casting sand in which the caking additive was mixed in the desired shape. The core molding apparatus includes a kneader for mixing and kneading the molding sand and the binder, a molding mold for receiving a casting sand mixed in the kneading machine into the inside thereof to take a predetermined shape, and heating the molding mold to form a casting sand in the molding mold. And heating means for hardening as it is under the action of the binder, and discharge means for discharging the completed core in the mold when the mold is opened.

However, according to the conventional production method of the core, there is a problem that the production and the work efficiency are remarkably deteriorated since a substantial part of the work depends on the manual work.

On the other hand, the background art described above is technical information possessed by the inventors for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a publicly known technique disclosed to the general public before the application of the present invention. .

Korea Patent Registration No. 10-1515572

One aspect of the present invention is to provide a core manufacturing apparatus capable of continuously forming a higher quality core and at the same time can safely and quickly discharge and transport the completed forming core automatically.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The core manufacturing apparatus according to an embodiment of the present invention, the core molding unit for continuously manufacturing a molding core using the injection molding sand; And a conveying part for receiving and conveying the forming core manufactured from the core forming part.

In one embodiment, the core molding portion, the lower support is formed in the receiving space therein; An upper support fixed to an upper end of the plurality of vertical pillars vertically coupled to the lower support, the upper support including a reciprocating frame extending in a longitudinal direction and a vertical pressing press formed at the front of the reciprocating frame; And a support frame formed between the lower support and the lower support, the central support including a horizontal pressing press horizontally pressed along a longitudinal direction. A hopper formed on the upper support and accommodating molding sand; A front mold hinged to the front of the central support to enable a rotational movement toward the lower portion of the support frame; It is supported by the central support, is formed in connection with the horizontal pressing press reciprocating in the horizontal direction from the rear of the front mold, and the rear mold for receiving the molding sand injected from the outside in combination with the front mold together with the front mold ; Is formed in the lower portion of the upper support and mounted to the reciprocating frame, and moves forward along the reciprocating frame to the coupling region of the front mold and the rear mold, and is pressed downward to the coupling region by the vertical pressing press A pressurized quantity supply unit for supplying the foundry sand into the combined front mold and the rear mold, and moving backward when the foundry sand supply is completed and waiting at a position spaced apart from the coupling region; A scraper portion formed on the front portion of the pressurizing quantity supply part and scraping off excess casting sand remaining in the joining region when the pressurizing quantity supply part is separated from the joining region; A movable plate portion extending along the longitudinal direction of the central support on the rear mold and providing a movement path of the excess molding sand of the scraper portion: located on the rear of the central support, the movable plate portion by the scraper portion; Receiving unit for receiving the excess foundry sand deviating from; And a heating unit configured to move to at least one region of the upper mold to heat the coupling region when the molding sand is supplied to the inside by the pressurized amount supply unit while the front mold and the rear mold are coupled to each other. The pressure metering unit may include a protection unit formed on at least one surface of the upper surface in contact with the vertical pressure press, and the protection unit may include a first sheet layer including an inorganic elastic waterproof material; A plurality of waterproof sheets of metal material disposed on the first sheet layer; A soft magnetic joint layer attached to at least one of a joint upper end and a joint lower end between the waterproof sheets; And a second sheet layer formed on the waterproof sheet and made of an inorganic elastic waterproof material. And a coating layer formed on the second sheet layer to protect the second sheet layer from external magnetic poles. A soft buffer disposed between the plurality of waterproof sheets and an adhesive composition applied to at least one region of the waterproof sheet and fixedly bonding the waterproof sheet, wherein the adhesive composition comprises 40 to 80 parts by weight of a thermoplastic resin, 5 to 40 parts by weight of the tackifier resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of plasticizer, 1 to 10 parts by weight of filler, 0.1 to 1 parts by weight of antioxidant, and 0.1 to 5 parts by weight of nanosilica.

In one embodiment, the heating unit, a torch for heating the coupling region; A valve in communication with the torch and supplying gas to the torch; A first guide module fixedly coupled to the torch and extending in the width direction of the central support in a rod shape; A pin coupled to the first guide module and horizontally reciprocating at a predetermined height along a longitudinal direction of the central support; An actuator formed under both side ends of the support plate and providing power to reciprocate the support plate; A second guide module coupled to the valve and disposed in parallel with the first guide module, the connecting passage formed therein and communicating with the valve to supply gas to the valve; A vertical guide module connecting the first guide module and the second guide module; A disc formed at one end of the first guide module, accommodating at least one region of one end of the first guide module, and including a protrusion at one region of an outer circumferential surface thereof; And is formed in an inclined shape on one side of the disc and guides the rotational movement of the torch by contacting at least one region of the protrusion to guide rotational tilt movement of the protrusion and rotating the disc to guide the rotation of the torch. It is formed to include an intermittent guide module for intermittent movement of the protrusion, and when the casting sand supply is completed inside the pressure mold supply unit in a state in which the front mold and the rear mold is coupled, the support plate is the front mold upper Forward movement to at least one region of the support plate, the projection moves up along the intermittent guide module by the forward movement of the support plate to rotate the disc to rotate the first guide module in the first direction so that the torch is the coupling region Approach and then rotate down to heat the coupling zone. When the torch completes heating of the coupling area, the support plate moves backward from the coupling area, and the protrusion rotates the disc while the protrusion moves downward along the intermittent guide module by the forward movement of the support plate. The guide module is rotated in a second direction to rotate the torch upwardly after being spaced apart from the coupling area.

In one embodiment, the transfer unit, a conveying conveyor for receiving the molding core from the core molding portion and transported to the packaging; An elevating member coupled to a lower portion of the conveying conveyor to raise or lower the conveying conveyor and reciprocate an internal space of the lower support; An elastic support formed between the transfer conveyor member and the elevating member, the elastic support absorbing shock and vibration generated when the forming core falls onto the transfer conveyor; A first guide member and a second member installed at both sides of the inlet part of the conveying conveyor and formed to narrow the gap between the inlet part toward the conveying direction of the forming core so as to adjust the spacing of the forming core to be conveyed; A transfer guide member including a guide member; A plurality of gap adjusting members installed at front and rear ends of the first guide member and the second guide member, respectively, to adjust a gap between the first guide member and the second guide member; A rotating member coupled to at least one region of the first guide member and the second guide member and spaced apart from the first guide member and the second guide member to an upper portion of the transfer conveyor through a rotary motion; And a cleaning unit formed at a rear portion of the transfer conveyor and removing foreign matter and yong casting sand present on the surface of the molding core, wherein the elastic support comprises: a top plate formed in a flat plate shape; A case spaced apart from the upper plate and formed to form an inner space; And an upper plate support part installed in an inner space of the case and having an upper portion exposed to an upper side of the case to support the upper plate using an elastic force, wherein the upper plate support part supports a center of the upper plate, and the upper plate is A first support portion for supplying a filling liquid to the inner space as the lowering; And installed at each lower side of each corner of the upper plate, and move upwards and downwards to support the edges of the upper plate by using an elastic force, and the upper plate is lowered in the vertical direction by the filling liquid supplied from the first support part as the upper plate descends. A second support part on which movement is braked; The first support portion, the first rotational fastening portion is provided in the center of the lower side of the upper plate, forming a spherical inner space; A first connection ball formed in a spherical shape corresponding to the shape of the inner space of the first pivot fastening part and installed to be rotatable in the inner space of the first pivot fastening part; A first support bar extending downward from the bottom of the first connection ball to support the first connection ball; It is formed in a cylindrical shape is installed in the inner space of the case, the filling liquid is received in the sealed inner space, the lower portion of the first support bar is inserted into the inner space, the first support bar when the upper plate is lowered A filling liquid tank in which a filling liquid is compressed and supplied to the second support part as a lower portion of the lower portion falls from an upper side of the inner space; And a connecting tube extending from a lower portion of the filling liquid tank to the second supporting portion to form a passage through which the filling liquid flows, wherein the second supporting portion is installed at a corner of a lower side of the upper plate and has a spherical shape. A second pivot fastening portion forming a space; A second connection ball formed in a spherical shape corresponding to the shape of the inner space of the second pivotal fastening part and rotatably installed in the inner space of the second pivotal fastening part; A second support bar extending downward from the bottom of the second connection ball to support the second connection ball; An elastic support installed at a lower side of the second support bar to support the second support bar using an elastic force; And a second support bar is inserted into the through hole to form a through hole in a vertical direction. When the upper plate descends, the filling liquid is supplied to the internal space through the connecting pipe and expands. As a result, the size of the through hole is reduced to include a lift adjusting part for fastening the second support bar so that the second support bar is not moved. The lifting control part is expanded in an inward direction in which the through hole is located as the filling liquid is supplied into the inner space. The outer wall is formed of a hard material so as to be able to be formed, the inner side facing the second support bar is formed of a material that can be expanded or contracted, the cleaning unit, a plurality of cleaning the surface of the molding core through the rotational movement Rotary brush; A plurality of support modules to which the plurality of rotary brushes are coupled; A motor module which is formed at one end of the support module and is rotatable based on an axis and rotates the rotating brush; It is formed in at least one region of the support module, including a spray module for injecting air or liquid to the surface of the forming core, wherein the rotary brush is the injection module is formed in the injection module, the air of A first guide tube for guiding the movement; A second guide tube formed inside the injection module to guide movement of the liquid; And a spray nozzle connected to the first guide tube and the second guide tube to release any one of the air and the liquid, wherein the rotating brush comprises a first brush roller, a second brush roller, and the first brush. And a third brush roller which is formed to be detachable at the other end of the brush roller and the second brush roller to connect the first brush roller and the second brush roller.

According to one aspect of the present invention described above, it is possible to continuously form a high-quality core and at the same time can provide an effect that can be safely and quickly discharged and transported the completed molding core automatically.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the scope apparent to those skilled in the art from the following description.

1 illustrates a core manufacturing apparatus according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a schematic configuration of a core manufacturing apparatus according to an embodiment of the present invention.
3 is a view showing the operation of the core manufacturing apparatus according to an embodiment of the present invention.
4 illustrates a heating unit according to an embodiment of the present invention.
5 illustrates an operation of a heating unit according to an embodiment of the present invention.
6 and 7 show a conveying unit according to an embodiment of the present invention.
8 illustrates an injection module according to an embodiment of the present invention.
9 and 10 are views showing the elastic support of FIG.
11 to 14 are views showing the connection of the respective components of the elastic support of FIG.
15 shows a protection unit according to an embodiment of the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

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

1 illustrates a core manufacturing apparatus according to an embodiment of the present invention.

Referring to Figure 1, the core manufacturing apparatus 10 according to an embodiment of the present invention may include a core molding part 100 and the transfer part 200.

The core molding part 100 is a component for manufacturing a molding core using the injected molding sand, it is possible to automatically manufacture the molding core continuously. The core molding part 100 includes components for storing and supplying molding sand for manufacturing a molding core, injecting the molding sand into a mold, and heating the manufacturing sand to manufacture a molding core.

The transfer unit 200 is configured to automatically receive a molding core manufactured from the core molding unit 100. The transfer unit 200 may reciprocate the inside of the core forming unit 100 and take over the completed molding core from the core forming unit 100 to automatically transfer the desired position to the user.

The core manufacturing apparatus 10 including the core molding part 100 and the conveying part 200 enables the continuous molding of the molding core and at the same time enables the safe and rapid discharge of the finished molding core. Specific configurations of the core molding part 100 and the conveying part 200 will be described in detail later with reference to FIG. 2.

2 is a cross-sectional view showing a schematic configuration of a core manufacturing apparatus according to an embodiment of the present invention, Figure 3 is a view showing the operation of the core manufacturing apparatus according to an embodiment of the present invention.

2 and 3, the core manufacturing apparatus 10 according to an embodiment of the present invention includes a core molding part 100 and the transfer part 200, first, the core molding part 100 is a support frame ( 110, the hopper 120, the front mold 130, the rear mold 140, the pressurized quantity supply 150, the scraper 160, the moving plate 170, the receiving unit 180 and the heating unit 190 It may include.

The support frame 110 may be formed of a lower support 111, a central support 112, and an upper support 113. The lower support 111 has an accommodation space formed therein, and the transport unit 200 reciprocates the accommodation space. That is, the molding core in which the molding is completed in the core molding part 100 is moved to the conveying part 200 through the receiving space. The central supporter 112 is formed between the lower supporter and the lower supporter, and includes a horizontal pressing press 112-1 that presses horizontally in the longitudinal direction. The horizontal pressing press 112-1 provides power for moving the rear mold 140 forward or backward along the longitudinal direction of the central support 112. The front support 130, the rear mold 140, the receiving unit 170 and the heating unit 180 is formed in the central support 112. The upper support 113 is fixed to the upper end of the plurality of vertical pillars vertically coupled to the lower support 111, the front of the reciprocating frame (113-1) and the reciprocating frame (113-1) is formed extending in the longitudinal direction And a vertical pressing press 113-2 formed in the portion. The reciprocating frame (113-1) is a configuration for guiding the movement of the pressure quantitative supply unit 150, the pressure quantitative supply unit 150 along the reciprocating frame (113-1) reciprocating along the longitudinal direction of the upper support (113) can do. The vertical pressurization press 113-2 is configured to push the pressurized quantity supply unit 150 downward, and may lower the pressurized quantity supply unit 150 to supply the foundry sand.

Hopper 120 is formed on the upper support 113, it can accommodate the molding sand. The inside of the hopper 120 may include a compounding configuration having a plurality of wing forms so as to homogeneously mix the molding sand and the casting sand is not solidified.

The front mold 130 is hinged to the front of the central support 112, it is possible to rotate toward the lower portion of the support frame 110. That is, as shown in Figure 3, the front mold 130 may be formed in a form that is fixed to a certain height, but can be rotated 90 to 110 degrees. The shape of the front mold 130 is a front mold 130, in order to transfer the molding core coupled to the front mold 130 to the transfer unit 200 when the manufacturing of the molding core through the heating of the heating unit 180 is completed. ) May face the upper portion of the transfer unit 200 through the rotational movement. In an embodiment, at least one region of the front mold 130 may include a push rod and a press configuration for separating the molding core from which the molding is completed from the front mold 130.

The rear mold 140 is supported by the central support 112, is formed in connection with the horizontal pressing press (112-1) reciprocating in the horizontal direction from the rear of the front mold 130, combined with the front mold 130 The molding sand injected from the outside of the furnace may be accommodated together with the front mold 130. The rear mold 140 may be formed in a shape corresponding to the front mold 130 so that the front mold 130 and the front mold 130 can be coupled. In addition, the moving plate unit 170 may be coupled to the upper portion of the rear mold 140.

Pressurized quantity supply 150 is formed in the lower portion of the upper support 113 and mounted on the reciprocating frame (113-1), the combination of the front mold 130 and the rear mold 140 along the reciprocating frame (113-1). You can move forward to the area. Subsequently, the pressurized quantity supply part 150 which has completed the forward movement is pressurized downward to the coupling region by the vertical pressure press 113-2, and supplies the foundry sand into the combined front mold and the rear mold. When the molding sand supply is completed, the pressurizing quantity supply part 150 moves backward and waits at a position spaced apart from the coupling area. For example, while the heating unit 190 heats the coupling region, the pressurized quantity supply unit 150 may move backward so as not to disturb the operation of the heating unit 190. In addition, the pressurization metering unit 150 may be formed with a protection unit 300 on at least one zero of the upper surface in contact with the vertical pressure press 113-2.

Scraper 160 is formed on the front portion of the pressure metering supply 150, when the pressure metering supply 150 is away from the coupling area, the excess casting sand remaining in the coupling area can be scraped off from the coupling area. To this end, the scraper 160 may be formed in a configuration capable of moving up and down at a predetermined angle, and before the operation is in the standby state from the top, and during operation, the scraper unit 160 may be rotated downward to contact the coupling region through rotation. Can be.

The moving plate unit 170 extends along the longitudinal direction of the central supporter 112 on the upper side of the rear mold 140 and provides a moving path of the excess molding sand of the scraper unit 160.

The accommodation unit 180 is located at the rear of the central supporter 112, and accommodates the excess molding sand that is separated from the moving plate unit 170 by the scraper unit 160.

The heating unit 190 is supplied to the at least one area above the front mold 130 when the casting sand is supplied to the inside by the pressurization amount supply unit 150 in a state in which the front mold 130 and the rear mold 140 are coupled to each other. Move to heat the bonding area.

Next, the conveying unit 200 according to an embodiment of the present invention is the conveying conveyor 210, the elevating member 220, the conveying guide member 230, the gap adjusting member 240, the rotating member 250, the cleaning unit 260 and the elastic support 400 may be included.

The transfer conveyor 210 may receive and transfer a molding core from which the molding is completed from the core molding unit 100. The transfer conveyor 210 may be formed in a conventional conveyor belt structure, and may automatically transfer the forming core to a place set by a user through rotational movement.

The elevating member 220 is coupled to the lower portion of the conveying conveyor 210, and may raise or lower the conveying conveyor 210. This can be lowered after receiving the molding core by raising the conveying conveyor 210 to reduce the impact when the molding core falls as much as possible. In addition, the elevating member 220 may reciprocate the inside of the lower support 111 of the core forming part (100).

The conveying guide member 230 is installed at both sides of the inlet portion of the conveying conveyor 210 and is formed such that the spacing between the inlet portions is narrowed toward the conveying direction from the inlet portion so as to adjust the spacing of the conveying cores. The first guide member 231 and the second guide member 232 are included.

The gap adjusting member 240 is formed in plural and is installed at the front and rear ends of the first guide member 231 and the second guide member 232, respectively, so that the first guide member 231 and the second guide member ( 232) Adjust the distance between them.

The rotating member 250 is coupled to at least one region of the first guide member 231 and the second guide member 232 and transfers the first guide member 231 and the second guide member 232 through a rotational motion. It may be spaced apart from the top of the conveyor (210).

The cleaning unit 260 is formed at the rear of the transfer conveyor 210 and removes foreign substances and yongyoung casting sand present on the surface of the molding core.

The elastic support 400 is formed between the transfer conveyor 210 and the elevating member 220, and absorbs the shock and vibration generated when the forming core falls to the transfer conveyor 210.

Operation of the core manufacturing apparatus 10 according to the present embodiment having the configuration as described above is made as follows.

After taking out the forming core, the empty front mold 130 is rotated to face the rear mold 140. Subsequently, the rear mold 140 is moved forward to be integrated with the front mold 130.

At the same time, the pressurized quantity supply unit 150 is lowered and then pressed into the inside of the front and rear molds 130 and 140 while being in close contact with the upper coupling region of the front mold 130 and the rear mold 140. If the required amount of foundry sand is supplied, the pressurized quantity supply part 150 is raised and then moved toward the direction in which the hopper 120 is located. At this time, the scraper 160 is operated to remove excess residue left in the coupling region of the front mold 130 and the rear mold 140, and at the same time, to recover the excess casting sand to the receiving portion 180.

When the process of removing the excess foundry sand from the joining region is completed, the joining region is heated while the heating unit 190 is positioned above the joining region, thereby curing the foundry sand inside the front and back molds 130 and 140.

When the heating for a predetermined time is completed through the heating unit 190, the heating unit 190 moves forward, the transfer unit 200 moves below the front mold 130, and then toward the front mold 130 Go up. Subsequently, the downward mold 140 moves backward, and the front mold 130 and the rear mold 140 are separated, and the front mold 130 is rotated 90 degrees toward the transfer part 200 to the front mold 130. The molded core is taken out from the front mold 130 by pushing the molded core that has completed the firing included therein.

The extracted forming core is positioned on the conveying conveyor 210 of the conveying part 200, and the conveying part 200 descends through the elevating member 220 and then moves forward to move out of the core forming part 100. After that, the transfer part 200 which has stopped moving moves the forming core by operating the transfer conveyor 210. At this time, the molding core is aligned with the position transported by the gap adjusting member 240, and then, the dust or excess molding sand included in the outer peripheral surface of the molding core can be removed while passing through the cleaning unit 260.

4 illustrates a heating unit according to an embodiment of the present invention, and FIG. 5 illustrates an operation of the heating unit according to an embodiment of the present invention.

4 and 5, the heating unit 190 according to an embodiment of the present invention is a torch 191, a valve 192, the first guide module 193, the second guide module 194, vertical The guide module 195, the support plate 196, the actuator 197, the disc 198 and the intermittent guide module 199 may be included.

Torch 191 may be formed in a plurality of configurations to supply heat by heating the coupling region. The torch 191 may be fixedly coupled to the first guide module 193.

The valve 192 may communicate with the torch 191, supply gas to the torch 191, and may be fixedly coupled to the second guide module 194.

The first guide module 193 may be fixedly coupled to the torch 191 and extend in the width direction of the central support 112 in the form of a rod. The first guide module 193 is formed in a rod shape that can rotate, thereby rotating the coupled torch 191.

The second guide module 194 is coupled to the valve 192 and disposed in parallel with the first guide module 193, and the connection passage formed therein and the valve 192 communicate with each other to supply gas to the valve 192. .

The vertical guide module 195 may vertically connect the first guide module 193 and the second guide module 194. Through this, the first guide module 193 and the second guide module 194 may be interlocked.

The support plate 196 is pin-coupled with the first guide module 193 and may horizontally reciprocate at a predetermined height along the longitudinal direction of the central support 112. Through this, the torch 191 coupled to the first guide module 193 may be moved.

The actuator 197 is formed below both side ends of the support plate 196, and provides power for reciprocating the support plate 196.

The disc 198 is formed at one end of the first guide module 193, accommodates at least one area of one end of the first guide module 193, and protrudes 198-1 to one area of the outer circumferential surface. Include.

The intermittent guide module 199 is formed in an inclined shape on one side of the disc 198 and contacts the at least one region of the protrusion 198-1 to guide the rotational tilt movement of the protrusion 198-1. 198 is rotated to guide the rotational movement of the torch 191. In addition, the interruption guide module 199 may be formed in a hook shape to interrupt the movement of the protrusion 198-1.

Operation of the heating unit 190 according to the present embodiment having the above configuration is made as follows.

When the molding sand supply is completed by the pressurized quantity supply unit 150 in a state in which the front mold 130 and the rear mold 140 are combined, the support plate 196 moves forward to at least one region of the upper front mold 130. As the support plate 196 moves forward, the protrusion 198-1 rotates the disc 198 while moving upward along the intermittent guide module 199. Accordingly, the first guide module 193 is rotated together with the original plate 198 in the first direction, so that the torch 191 approaches the coupling region and rotates downward to heat the coupling region.

Thereafter, when the torch 191 completes heating of the coupling region, the support plate 196 moves backward from the coupling region, and the protrusion 198-1 moves along the intermittent guide module 199 by the forward movement of the support plate 196. Go down. At the same time, the disc 198 may be rotated to rotate the first guide module 193 in the second direction so that the torch 191 may be rotated to face upward after being spaced apart from the coupling region.

6 and 7 show a conveying unit according to an embodiment of the present invention.

6 and 7, the transfer unit 200 includes a gap adjusting member 240 and a cleaning unit 260. The cleaning unit 260 includes a rotary brush 261, a support module 262, and a motor module 263.

The rotary brush 261 may be formed in plural as a configuration for cleaning the surface of the molding core through the rotational movement. The support module 262 may be coupled to the plurality of rotating brushes 261, and a plurality of the supporting brushes 262 may be formed according to the number of the rotating brushes 261. The motor module 263 is formed at one end of the support module 262, can be rotated relative to the axis, and can rotate the rotating brush. The injection module 264 is formed in at least one region of the support module 262 and may inject air or liquid to the surface of the forming core.

In one example, the rotary brush 261 includes a first brush roller 261-1, a second brush roller 261-1 and a first brush roller 261-1 and a second brush roller 261-1. The second brush roller 261-3 may be formed to be detachably attached to the other end of the third brush roller 261-3 to connect the first brush roller 261-1 and the second brush roller 261-1. The third brush roller 261-3 may be separated according to the exemplary embodiment, and may include the first brush roller 261-1 and the second brush roller 261-1 to constitute the transfer part 200. .

8 illustrates an injection module according to an embodiment of the present invention.

Referring to FIG. 8, the injection module 263 according to an embodiment of the present invention may include a first guide tube 263-1, a second guide tube 263-2, and an injection nozzle 263-3. Can be.

The first guide tube 263-1 is formed inside the injection module 263 and guides the movement of air. The second guide tube 263-2 is also formed inside the injection module 263 and guides the movement of the liquid. Herein, the liquid may include various liquids that do not damage the molding core including the coating agent. The first guide tube 263-1 and the second guide tube 263-2 are configured to provide liquid or water for cleaning or protecting the molding core, and the injection module 263 is provided for cleaning the first guide tube. When injecting air through 263-1, the second guide tube 263-2 may be closed. The injection nozzle 263-3 may be connected to the first guide tube 263-1 and the second guide tube 263-2 to discharge one of the air and the liquid.

9 and 10 are views showing the elastic support of FIG.

9 and 10, the elastic support 400 includes a top plate 410, a case 420, and a top plate support 430.

At this time, the elastic support 400, as shown in Figure 11 may be formed of two or more.

The upper plate 410 is formed in a flat plate shape, is in close contact with the wheel 340, and is supported by the upper plate support part 430.

The case 420 is spaced apart from the lower side of the upper plate 410 and forms an inner space for installing the upper plate support part 430.

The upper plate supporter 430 is installed in the inner space of the case 420, and an upper portion thereof is exposed to the upper side of the case 420 to support the upper plate 410 using elastic force.

In the elastic support 400 having the above-described configuration, the case 420 is installed on the lower surface of the rotation frame 362 facing the wheel 340, and the rotation frame 362 is in the direction of the wheel 340. As the closer to the upper plate 410 is supported by the upper plate support portion 430 to form an elastic force is in close contact with the wheel 340 to brake the wheel 340.

11 to 14 are views showing the connection of the respective components of the elastic support of FIG.

Referring to FIG. 11, the upper plate support part 430 includes a first support part 431 and a plurality of second support parts 432a, 432b, 432c, and 432d.

The first support part 431 supports the center of the top plate 410, and supplies the filling liquid to the plurality of second support parts 432a, 432b, 432c, and 432d in the inner space as the top plate 410 descends. .

The second supporting parts 432a, 432b, 432c, and 432d are respectively installed at the lower sides of the corners of the upper plate 410, and move upward and downward to support the corners of the upper plate 410 using elastic force, and the upper plate 410 As the) is lowered, the movement in the vertical direction is braked by the filling liquid supplied from the first support part 431.

The upper plate support portion 430 having the above-described configuration efficiently supports the upper plate 410 using elastic force by using the first support portion 431 and the plurality of second support portions 432a, 432b, 432c, and 432d. can do.

12 to 14, the first support part 431 includes a first pivotal fastening part 4311, a first connecting ball 4312, a first support bar 4313, a filling liquid tank 4314, and a connection. Tube 4315.

As shown in FIG. 14, the first pivot fastening part 4311 is installed at the center portion of the lower surface of the upper plate 410, and forms a spherical inner space to connect the first connection balls 4312.

The first connecting ball 4312 is formed in a spherical shape corresponding to the shape of the internal space of the first pivot fastening portion 4311, is installed to be rotatable in the internal space of the first pivot fastening portion 4311, and the first Supported by a support bar 4313.

The first support bar 4313 extends from a lower portion of the first connecting ball 4312 to an inner space of the filling liquid tank 4314 in a downward direction to support the first connecting ball 4312, and the upper plate 410. As it descends, it descends together and compresses the filling liquid contained in the filling liquid tank 4314 in the downward direction.

Filling tank 4314 is formed in a cylindrical shape is installed in the inner space of the case 420, the filling liquid is received in the sealed inner space, the lower portion of the first support bar 4313 is inserted into the inner space When the upper plate 410 is lowered, as the lower portion of the first support bar 4313 descends from the upper side of the inner space, the filling liquid is compressed to be supplied to the second support part 432 through the connecting pipe 4315.

At this time, the first support bar 4313 is a rubber corresponding to the shape of the inner space of the filling liquid tank 4314 so that the filling liquid contained in the filling space of the filling liquid tank 4314 can be compressed in the same way as the syringe driving method. Packing material P may be formed on the lower side.

The connecting pipe 4315 extends from the lower portion of the filling liquid tank 4314 to the respective second supporting portions 432a, 432b, 432c, and 432d to form a passage through which the filling liquid flows.

Hereinafter, the second support part 432 will be described.

The second support part 432 includes a second pivotal fastening part 4321, a second connecting ball 4322, a second support bar 4323, an elastic support part 4324, and a lift adjusting part 4325.

As shown in FIG. 14, the second pivot fastening part 4321 is installed at a corner of the lower side of the upper plate 410, and forms a spherical inner space to connect the second connection balls 4322.

The second connecting ball 4322 is formed in a spherical shape corresponding to the shape of the internal space of the second pivotal fastening part 4321, and is installed to be rotatable in the internal space of the second pivotal fastening part 4321. Supported by support bars 4323.

The second support bar 4323 extends from the lower portion of the second connection ball 4322 to the inner space of the case 420 in a downward direction to support the second connection ball 4322, and to the elastic support part 4324. Is supported.

The elastic support part 4324 is provided below the second support bar 4323 to support the second support bar 4323 in the inner space of the case 420 by using an elastic force.

The elevating adjustment part 4325 is formed in the shape of a circular tube that forms the through hole 4325h in the vertical direction, and the second support bar 4323 is inserted into the through hole 4325h, and the upper plate 410 is lowered. In this case, as the filling liquid is supplied to the internal space through the connecting pipe 4315 and expanded, the size of the through hole 4325h is reduced so that the second support bar 4323 is not moved.

In one embodiment, the elevating control unit 4325 has an outer wall 4325o to expand in the inward direction in which the through hole 4325h is located as the filling liquid is supplied to the inner space as shown in FIG. 12. It may be formed of a hard material, and the inner side 4325i facing the second support bar 4323 may be formed of a material that can expand or contract.

The upper plate support part 430 having the above-described configuration supports the upper plate 310 by using the first support part 431 and the plurality of second support parts 432a, 432b, 432c, and 432d, and forms an elastic force. By using a plurality of second supports 432a, 432b, 432c, and 432d, each corner of the top plate 310 is basically supported, and the upper plate 310 has elastic force of each of the second supports 432a, 432b, 432c, and 432d. When the first support 431 is lowered by lowering the pressure, the filling solution contained in the first support 431 is compressed and supplied to each of the second support parts 432a, 432b, 432c, and 432d, which are being lowered together. Due to expansion due to the supply of the filling liquid, the lowering of each of the second supporting parts 432a, 432b, 432c, and 432d is prevented, so that the lowering of the upper plate 310 is gradually increased.

That is, the upper plate 310 is initially supported using only the elastic force of each of the second support parts 432a, 432b, 432c, and 432d, but is supplied from the first support part 431 as the first support part 431 descends together. The downward driving of the upper plate 310 is reduced by adding up to a resistance value generated by the adhesion force due to the filling liquid.

15 shows a protection unit according to an embodiment of the present invention.

Referring to FIG. 15, the protection part 300 according to an embodiment of the present invention may include a first sheet layer 310, a waterproof sheet 320, a magnetic joint layer 330, a second sheet layer 340, and a coating layer. 350, a buffer 360, and a adhesive composition (not shown) may be included.

The first sheet layer 310 may be made of an inorganic elastic waterproof material, thereby improving weather resistance, corrosion resistance, durability, and the like of the waterproof sheet 320. Herein, the inorganic elastic waterproofing material is composed of a special copolymer emulsion and a cement-based special combination aggregate as a main component, for example, a styrene-butyl acrylic copolymer (STYRENE-BUTYL ACRYLATE COPOLYMER) emulsion and a cement powder (for example, a port It may be prepared by mixing the land cement, alumina, silica sand, antifoaming agent, reducing agent, etc.), or by adding water thereto.

The waterproof sheet 320 may be disposed on the first sheet layer 310 to function as a secondary waterproof layer. For example, the waterproof sheet 320 may be made of a metal material such as iron, aluminum, stainless steel, or chrome, and may be formed of a thin panel, and may protect the lower first sheet layer 310 and cope with external impact. In particular, the waterproof sheet 320 may be configured in plural and may be continuously disposed on the first sheet layer 310. In this case, the magnetic joint layer 330 is disposed at the joint between the waterproof sheets 320 to correspond to the stress behavior of the waterproof sheet 320 and maintain airtightness.

The magnetic joint layer 330 may be made of a soft material such as a rubber magnet, and may be attached to the joint between the waterproof sheets 320 to seal the joint. Here, the joint between the waterproof sheets 320 is a surface in which the continuous waterproof sheets 320 contact each other and includes a space spaced within a predetermined distance. The magnetic joint layer 330 may be attached to the bottom of the joint and the top of the joint between the waterproof sheets 320 to seal the joint. In addition, the magnetic joint layer 330 is magnetic, and can be easily and stably attached to the metal waterproof sheet 320.

The second sheet layer 340 may be made of the same inorganic elastic waterproofing material as the first sheet layer 310, and in particular, the second sheet layer 340 may discharge water vapor to the outside, and may be formed of metal. The waterproof sheet 320 can be prevented from being corroded due to moisture inside.

The coating layer 350 is formed on the second sheet layer 340 to protect the second sheet layer 340 from external magnetic poles.

The buffer unit 360 is disposed between the plurality of waterproof sheets 320, and may be formed of, for example, a soft material such as rubber. By being disposed between the waterproof sheets 320, it is possible to absorb the behavior of the waterproof sheet 320 in the horizontal direction and to maintain the structure of the protective part 300 more firmly. In particular, even when the soft cushion 360 is contracted / expanded by the waterproof sheet 320, the airtightness can be continuously maintained by the magnetic joint layer 330 fluidly attached at the top and bottom of the buffer 360. .

 The adhesive composition (not shown) is applied to at least one region of the protective part 300 to be applied to the first sheet layer 310, the waterproof sheet 320, the magnetic joint layer 330, the second sheet layer 340, and the coating layer. At least one of the 350 and the buffer 360 may be stably fixed. Adhesive composition according to an embodiment of the present invention, 40 to 80 parts by weight of thermoplastic resin, 5 to 40 parts by weight of adhesive resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of plasticizer, 1 to 10 parts by weight of filler Contains 0.1 to 1 parts by weight of antioxidant. The present invention is a hot melt adhesive composition, generally manufactured in a state of being bonded between the release agent and the silicone band, it serves to make the silicone band attached to the fabric by performing a press operation after removing the release agent when applied to the fabric. Hereinafter, each component will be described in detail.

The thermoplastic resin serves as a main component of the composition to control adhesion and cohesion. If the type includes a vinyl group or a hydroxyl group, the type thereof is not particularly limited, and examples thereof include ethylene vinyl acetate copolymer, polyvinylacetate, polyvinyl alcohol, ethylene-acrylic acid copolymer and ethylene-methacrylic acid copolymer, and polyurethane. It may be composed of any one or more selected from the group consisting of.

The content of the thermoplastic resin is preferably 40 to 80 parts by weight based on the total composition. If the content is less than 40 parts by weight, the melt viscosity is high and the melt flow index is low, the workability is very poor, if the content is more than 80 parts by weight it is difficult to exert sufficient adhesive force to be applied directly to the fabric.

The tackifier resin is a low molecular weight resin, lowers the melt viscosity to improve workability, improves the initial wettability of adhesion and adhesion of the adhesive on the surface of the adherend, and enables control of the solidification time.

The tackifying resin is not particularly limited in kind, but is preferably a petroleum resin. More specifically, the tackifier resin may be composed of one or more selected from the group consisting of aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, aromatic hydrocarbon resins, aromatic hydrocarbon-modified aliphatic hydrocarbon resins, and hydrogenated hydrocarbon resins.

The aliphatic hydrocarbon resins are commercial products such as Hikorez A-1100, Hikorez A-1100S, Hikorez C-1100, Hikorez R-1100, Hikorez R-1100S, and the like. In addition, alicyclic hydrocarbon resins include hydrocarbon resins containing dicyclopentadiene (DCPD) as monomers, and aromatic hydrocarbon resins are commercially available from Kolon Oil Co., Ltd. of Hikotack P-110S, Hikotack P-120, Hikotack P-120HS, Hikotack P-120S, Hikotack P-140, Hikotack P-140M, Hikotack P-150, Hikotack P-160, Hikotack P-90, Hikotack P-90S, Hirenol PL-1000, Hirenol PL-400. In addition, aromatic hydrocarbon-modified aliphatic hydrocarbon resins include Hikorez T-1080, Hikorez T-1100, etc. of Kolon Oils. Hydrogenated hydrocarbon resins can also be subdivided into hydrogenated aliphatic hydrocarbon resins, hydrogenated aromatic hydrocarbon resins, and the like, and commercially available from Kolon Oil Co., Ltd. Sukorez SU-120, Sukorez SU-130 and Sukorez SU-90.

The tackifier resin is preferably a hydrocarbon resin having 4 to 10 carbon atoms in the monomer, and specifically, a C5 aliphatic resin, a C9 aromatic resin, a C5 / C9 aliphatic / aromatic copolymer resin, or the like may be used.

In addition, the tackifying resin of the present invention is more preferably characterized in that the hydrocarbon hydrocarbon resin containing dicyclopentadiene as a monomer, commercially available from Sukorez D-300, Sukorez D-390, Kolon Emulsifier (Korea), Sukorez SU-100, Sukorez SU-110, Sukorez SU-120, SukorezSU-130 and Sukorez SU-90.

On the other hand, the adhesive composition of the present invention is preferably used by mixing the biodegradable hypoallergenic resin together with the various petroleum resins described above.

The biodegradable hypoallergenic resin may be prepared by melt-mixing a monomer of a polymer into a biodegradable polymer, and polylactic acid is preferably used as the biodegradable polymer.

The polylactic acid is a polyester synthesized by polycondensation of lactate or ring-opening polymerization of lactide, and has a medium physical property between polyamide and polyethylene terephthalate, and is mainly made of natural vegetable sugar components obtained from potatoes and corn. Biodegradability is high, but generally has high hardness, low elasticity, and poor durability.

The biodegradable polymer is melt-mixed with the same polymer monomer, wherein the biodegradable polymer is partially bonded with the monomer to cause chain breakage, thereby lowering the overall number average molecular weight. As the number average molecular weight falls, the physical properties that can be used as an adhesive are exhibited, and the workability is increased.

With respect to 100 parts by weight of the polylactic acid, the lactic acid monomer may be mixed 20 to 30 parts by weight. When the monomer is mixed in less than 20 parts by weight, the number average molecular weight is high and hard to be used as a pressure-sensitive adhesive, when the monomer exceeds 40 parts by weight migration may occur on the surface and may also be difficult to use as an adhesive.

It is preferable that the mixing ratio of the petroleum resin and the biodegradable hypoallergenic resin is 1 to 2: 1 (w / w). When the mixing ratio of the petroleum resin is too high, the biodegradable hypoallergenic effect is less likely to occur. If the mixing ratio is too high, economic efficiency may be lowered and the overall adhesive effect may be lowered.

In addition, the content of the tackifying resin is preferably 5 to 40 parts by weight relative to the total composition. If the content is less than 5 parts by weight, the effect of lowering the melt viscosity due to the addition of the tackifying resin is insufficient, and there is a fear that the increase in the melt flow index is not so large that the workability may not be satisfactorily reached, and the content is more than 30 parts by weight. If the melt flow index increase rate due to the excess of the tackifier resin is not large, the economical efficiency is lowered and the content of the thermoplastic polymer is relatively reduced, thereby reducing the overall physical properties of the composition.

The rosin acts to improve the overall adhesion of the adhesive composition and is harmless to the human body and acts as a natural preservative. The content of the rosin is preferably 1 to 5 parts by weight based on the total composition. If the content is less than 1 part by weight, it is difficult to obtain an effect of improving the adhesive strength, and if the content exceeds 5 parts by weight, there is a problem in that the adhesion is increased during processing, making it difficult to process the product.

The plasticizer is used to impart flexibility and adhesion to the polymer, and the type of plasticizer according to the present invention is not particularly limited, and for example, sorbitol, ethylene glycol, glycerin, glycerin diacetate, and pentaerythritol It may consist of one or more selected from the group consisting of.

The amount of the plasticizer is preferably 1 to 10 parts by weight based on the total composition. If the content is less than 1 part by weight, the effect of the addition of the plasticizer is insignificant. If the content is more than 10 parts by weight, the economical efficiency may be reduced by excessive use of the plasticizer, and there is a concern that the overall physical properties of the adhesive may be lowered.

The filler is used to control the reinforcement and flow of the composition. The type of filler is not particularly limited, and for example, calcium carbonate, clay, bentonite, calcium stearate or the like can be used.

On the other hand, in the present invention, to control the reinforcement and flow of the adhesive composition while reducing odor and bacteria generation, it is preferable to use a mixture of stone powder and pulp powder as a filler. Stone powder can achieve high strength without using additives due to the compactness of the particles, and the cracking of the adhesive hardly occurs even when the temperature change is large due to low volumetric strain according to the surrounding environment.

The stone powder may be used in the form of powder of various rocks such as loess, marble, elvan, granite, gemstone, and is characterized in that the loess having various functions such as antibacterial, antifungal, and ultraviolet radiation is used.

The pulp powder serves to agglomerate the stone powders while sucking the liquid components, to improve the miscibility and improve the cohesion between the components. At this time, the stone powder and the pulp powder is preferably mixed in a ratio of about 7: 3 to 8: 2 (w / w).

The content of the filler is preferably 1 to 10 parts by weight based on the total composition. If the content is less than 1 part by weight, the effect of adding the filler is insignificant, and if the content is more than 10 parts by weight, there is a concern that the overall physical properties of the adhesive may be lowered.

The antioxidant is intended to improve the change in viscosity, yellowing, deterioration of adhesion and degradation of durability due to oxidation and decomposition, and the type thereof is not particularly limited and specifically, phenols, aromatic amines, citric acid, or ascorbic acid may be used. Can be.

The content of the antioxidant is preferably 0.1 to 1 parts by weight relative to the total composition. If the content is less than 0.1 part by weight, the effect of the addition of the antioxidant is insignificant, and if the content exceeds 1 part by weight, not only the economical efficiency of the adhesive is lowered but also the overall physical properties may be lowered.

On the other hand, the adhesive composition of the present invention is subjected to a press operation on the fabric, at this time there is a possibility that the poor adhesion due to the amount of the composition is removed due to the presence of the hole in the fabric.

Thus, the adhesive composition of the present invention may further include a nano silica that can improve the adhesion by allowing the adhesive composition to be uniformly distributed on the fabric surface. At this time, the content of the nano silica is preferably 0.1 to 5 parts by weight, and the size of the nano silica (primary particles) is preferably 100 nm or less.

If the content of the nano-silica is less than 0.1 parts by weight, the effect of the addition of nano-silica is insignificant, and if the content exceeds 5 parts by weight, not only the adhesive force is lowered but also a bad phenomenon that blooming (blooming) occurs on the surface of the adhesive over time May occur. Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail.

Example 1

에서 용융혼련시켜 접착제 조성물을 제조한 후 펠렛 타입으로 성형하였다. 이때, 상기 생분해성 저자극 수지는 폴리락트산 100중량부에 락트산 단량체 2.5중량부를 160

로 5분동안 용융혼합하여 제조하였다.60 parts by weight of ethylene-vinylacetate copolymer, 25 parts by weight of Sukorez D-300, 3 parts by weight of rosin, 5 parts by weight of ethylene glycol, 4 parts by weight of ocherite, 2 parts by weight of pulp powder and 1 part by weight of ascorbic acid

Melt kneading at to prepare an adhesive composition and then molded into pellets. At this time, the biodegradable hypoallergenic resin is 2.5 parts by weight of lactic acid monomer 160 parts by weight of polylactic acid 160

It was prepared by melt mixing for 5 minutes.

 Example 2

에서 용융혼련시켜 접착제 조성물을 제조한 후 펠렛 타입으로 성형하였다. 이때, 상기 생분해성 저자극 수지는 폴리락트산 100중량부에 락트산 단량체 2.5중량부를 160

로 5분동안 용융혼합하여 제조하였다.60 parts by weight of ethylene-vinylacetate copolymer, 15 parts by weight of Sukorez D-300, 10 parts by weight of biodegradable hypoallergenic resin, 3 parts by weight of rosin, 5 parts by weight of ethylene glycol, 4 parts by weight of loess, 2 parts by weight of pulp powder and ascorb 170 ~ 180 by mixing 1 part by weight of acid

Melt kneading at to prepare an adhesive composition and then molded into pellets. At this time, the biodegradable hypoallergenic resin is 2.5 parts by weight of lactic acid monomer 160 parts by weight of polylactic acid 160

It was prepared by melt mixing for 5 minutes.

Example 3

Except for adding 1 part by weight of nanosilica, it was prepared in the same manner as in Example 1, and was made as Example 3.

 [Comparative Example]

It was used after removing the backing paper from the conventional TPU hot melt film.

Experimental Example

(1) Mesh adhesive strength

에서 용융 도포한 후, 130

에서 30초 동안 60㎏f/㎠의 압력으로 프레스 작업을 진행하고 메쉬접착강도(㎏f/㎠)를 측정하였다. In order to evaluate the mesh adhesive strength of the hot melt adhesive, the adhesive pellets quantitated between the two pieces of overlapping fabric were applied.

After melt coating at 130

Press work at a pressure of 60 kgf / ㎠ for 30 seconds at and measured the mesh adhesive strength (kgf / ㎠).

 (2) Melt Flow Index

에서 약 5분간 녹였다. 3㎏의 추를 얹고 10분간 실린더를 통해 통과되는 접착제의 중량(g)을 측정하였다.Fill the heating cylinder of the melt flow rate meter with the pellet-type adhesive 160

Dissolved for about 5 minutes. The weight (g) of the adhesive passed through the cylinder for 10 minutes was measured by putting a weight of 3 kg.

As can be seen from the table, it was confirmed that the adhesive composition of the present invention has improved adhesion and flow index than the existing product, even when using the biodegradable hypoallergenic resin was confirmed that the adhesion and flow index does not fall significantly. Also, when the nano-silica is mixed, the flow index can be seen to increase significantly.

The above-described embodiments are for illustrative purposes, and those of ordinary skill in the art to which the above-described embodiments belong may easily change to other specific forms without changing the technical spirit or essential features of the above-described embodiments. I can understand. Therefore, it is to be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected by the present specification is represented by the following claims rather than the above description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: middleman manufacturing device
100: core molding part
200: transfer unit

Claims (2)

Core molding unit for continuously manufacturing a molding core using the injection molding sand; And
It includes a conveying unit for receiving and conveying the molding core manufactured from the core molding portion,
The core molding portion,
A lower support having an accommodation space therein; An upper support fixed to an upper end of the plurality of vertical pillars vertically coupled to the lower support, the upper support including a reciprocating frame extending in a longitudinal direction and a vertical pressing press formed at the front of the reciprocating frame; And a support frame formed between the lower support and the lower support, the central support including a horizontal pressing press horizontally pressed along a longitudinal direction.
A hopper formed on the upper support and accommodating molding sand;
A front mold hinged to the front of the central support to enable a rotational movement toward the lower portion of the support frame;
It is supported by the central support, is formed in connection with the horizontal pressing press reciprocating in the horizontal direction from the rear of the front mold, and the rear mold for receiving the molding sand injected from the outside in combination with the front mold together with the front mold ;
Is formed in the lower portion of the upper support and mounted to the reciprocating frame, and moves forward to the coupling region of the front mold and the rear mold along the reciprocating frame, in a state pressed downward to the coupling region by the vertical pressing press A pressurized quantity supply unit for supplying the foundry sand into the combined front mold and the rear mold and moving backward when the foundry sand supply is completed and waiting at a position spaced apart from the coupling region;
A scraper portion formed on the front portion of the pressurizing quantity supply part and scraping off excess casting sand remaining in the joining region when the pressurizing quantity supply part is separated from the joining region;
A movable plate portion extending along the longitudinal direction of the central support on the rear mold and providing a movement path of the excess molding sand of the scraper portion:
A receptacle positioned at the rear of the central support and accommodating the excess casting sand separated from the movable plate by the scraper portion; And
And a heating unit configured to move to at least one region of the upper mold to heat the coupling region when the molding sand is supplied to the inside by the pressurized quantity supply unit while the front mold and the rear mold are coupled to each other.
The pressurized quantity supply unit may include a protection unit formed on at least one surface of the upper surface in contact with the vertical pressure press, and the protection unit may include a first sheet layer including an inorganic elastic waterproof material; A plurality of waterproof sheets of metal material disposed on the first sheet layer; A soft magnetic joint layer attached to at least one of a joint upper end and a joint lower end between the waterproof sheets; And a second sheet layer formed on the waterproof sheet and made of an inorganic elastic waterproof material. And a coating layer formed on the second sheet layer to protect the second sheet layer from external magnetic poles. A soft buffer disposed between the plurality of waterproof sheets and an adhesive composition applied to at least one region of the waterproof sheet and fixedly bonding the waterproof sheet, wherein the adhesive composition comprises 40 to 80 parts by weight of a thermoplastic resin, 5 to 40 parts by weight of the tackifier resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of plasticizer, 1 to 10 parts by weight of filler and 0.1 to 1 parts by weight of antioxidant, 0.1 to 5 parts by weight of nano silica,
The heating unit,
A torch for heating the coupling region;
A valve in communication with the torch and supplying gas to the torch;
A first guide module fixedly coupled to the torch and extending in the width direction of the central support in a rod shape;
A pin coupled to the first guide module and horizontally reciprocating at a predetermined height along a longitudinal direction of the central support;
An actuator formed under both side ends of the support plate and providing power to reciprocate the support plate;
A second guide module coupled to the valve and disposed in parallel with the first guide module, the connecting passage formed therein and communicating with the valve to supply gas to the valve;
A vertical guide module connecting the first guide module and the second guide module;
A disc formed at one end of the first guide module, accommodating at least one region of one end of the first guide module, and including a protrusion at one region of an outer circumferential surface thereof; And
It is formed in an inclined form on one side of the disc and guides the rotational movement of the torch by contacting at least one region of the protrusion to guide the rotational inclination movement of the protrusion and rotating the disc, the top of which is hooked. Is formed includes an intermittent guide module for intermittent movement of the protrusion,
When the casting sand is supplied to the inside by the pressurized quantity supply unit in a state in which the front mold and the rear mold are coupled, the support plate moves forward to at least one region of the upper front mold, and the protrusion part moves forward by the support plate. Rotates the disk while moving up along the intermittent guide module to rotate the first guide module in the first direction to move the torch to the coupling zone and to rotate downward to heat the coupling zone.
When the torch completes heating of the coupling area, the support plate moves backward from the coupling area, and the protrusion rotates the disc while the protrusion moves downward along the intermittent guide module by the forward movement of the support plate to rotate the first guide. And rotate the module in a second direction so that the torch is rotated to face upward after being spaced apart from the engagement region.
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