WO2022003885A1 - ワックスモデル射出成型方法およびワックスモデル射出成型装置 - Google Patents

ワックスモデル射出成型方法およびワックスモデル射出成型装置 Download PDF

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Publication number
WO2022003885A1
WO2022003885A1 PCT/JP2020/025927 JP2020025927W WO2022003885A1 WO 2022003885 A1 WO2022003885 A1 WO 2022003885A1 JP 2020025927 W JP2020025927 W JP 2020025927W WO 2022003885 A1 WO2022003885 A1 WO 2022003885A1
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WO
WIPO (PCT)
Prior art keywords
rubber mold
clamp
clamp portion
mold
filled
Prior art date
Application number
PCT/JP2020/025927
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
深作 安井
Original Assignee
ＣＳＧ Ｉｎｖｅｓｔｍｅｎｔｓ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ＣＳＧ Ｉｎｖｅｓｔｍｅｎｔｓ株式会社 filed Critical ＣＳＧ Ｉｎｖｅｓｔｍｅｎｔｓ株式会社
Priority to JP2022532937A priority Critical patent/JP7498516B2/ja
Priority to PCT/JP2020/025927 priority patent/WO2022003885A1/ja
Publication of WO2022003885A1 publication Critical patent/WO2022003885A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/03—Injection moulding apparatus
    • B29C45/04—Injection moulding apparatus using movable moulds or mould halves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating

Definitions

  • the present invention relates to a wax model injection molding method for molding a wax model used for lost wax casting and a wax model injection molding apparatus.
  • the lost wax casting method is known as one of the casting methods for complicated shapes such as metal accessories.
  • a prototype to be manufactured is covered with silicon rubber or the like, a rubber mold is formed by vulcanizing the silicon rubber or the like, the rubber mold is divided and the prototype is taken out, and then the prototype is taken out.
  • the step of filling the inside of the rubber mold with a wax resin and molding the wax model is the step of the present invention.
  • an injection nozzle for injecting wax resin is provided, and the device body for filling the rubber mold with wax resin and the device body for clamping the rubber mold and moving back and forth in the direction of the injection nozzle of the device body.
  • a wax model injection molding device provided with a clamping device for fitting and separating an injection port opening in a rubber mold and an injection nozzle is known (see, for example, Patent Document 1).
  • wax model injection molding device In such a wax model injection molding device, the following are generally used for supplying a rubber mold to a clamp device attached to the main body of the device and discharging a filled rubber mold filled with wax resin from the clamp device. It is done like this.
  • the rubber mold is pushed into the clamp portion of the clamp device from the rear to the front along the moving direction of the clamp device, and after the rubber mold is filled with the wax resin, the wax resin is supplied.
  • the filled rubber mold is pulled out rearward from the inside of the clamp portion and discharged from the clamp device.
  • the next rubber mold is pushed into the clamp portion and supplied to the clamp device (see, for example, Patent Document 2). Wax model injection molding is continuously performed while repeating this operation.
  • the inventor supplies a rubber mold to the clamp device attached to the main body of the conventional wax model injection molding device and uses wax resin from the clamp device. Focusing on the fact that the filled rubber mold is discharged in two processes, supply and discharge, we came up with the idea of improving the efficiency of wax model molding by performing these two processes in one process. As a result of repeated test studies, the present invention has been completed.
  • An object of the present invention is to provide a wax model injection molding method and a wax model injection molding apparatus capable of efficiently performing wax model injection molding and shortening the time.
  • the invention according to claim 1 is to clamp a rubber mold having a hollow pattern internally by a clamping portion provided in the clamping device, and to use the rubber mold as a wax model injection molding apparatus.
  • This is a wax model injection molding method including a step of supplying the next rubber mold to a step of discharging the filled rubber mold from the inside of the clamp portion and a step of ejecting the next rubber mold into the clamp portion from which the filled rubber mold is discharged.
  • the two steps of supplying after filling the rubber mold with the wax resin, the next rubber mold is moved into the clamp portion, the filled rubber mold is pushed out from the inside of the clamp portion and discharged, and the next rubber mold is discharged. Is one step performed by a series of operations so as to supply the rubber into the clamp portion.
  • the wax model injection molding method there are two steps: a step of discharging the filled rubber mold from the inside of the clamp portion and a step of supplying the next rubber mold into the clamp portion from which the filled rubber mold is discharged.
  • a step of discharging the filled rubber mold from the inside of the clamp portion a step of supplying the next rubber mold into the clamp portion from which the filled rubber mold is discharged.
  • the next rubber mold is moved to the clamp portion, the filled rubber mold is pushed out from the inside of the clamp portion and discharged, and the next rubber mold is moved into the clamp portion. Since it is one step performed by a series of operations for supplying, it is possible to efficiently supply the filled rubber mold from the inside of the clamp portion to the next rubber mold in the clamp portion, and the filled rubber mold has been filled. It is possible to shorten the time from the discharge of the rubber mold to the supply of the next rubber mold.
  • the rubber mold is clamped to the device main body for filling the rubber mold having a hollow pattern from the injection nozzle for injecting the wax resin to the rubber mold having a hollow pattern inside, and the rubber mold is clamped back and forth in the direction of the injection nozzle of the device main body.
  • the clamp device is a mold on which the rubber mold is placed and this.
  • a clamp portion consisting of a clamp head that can move in the vertical direction with respect to the mold base is provided, and the clamp portion has a rubber mold in the clamp portion on one side in the left-right direction perpendicular to the front-back movement direction of the clamping device.
  • a supply port for supplying is provided, a discharge port for discharging the filled rubber mold filled with wax resin from the inside of the clamp portion is provided on the other side, and the outside of the supply port of the clamp portion is inside the clamp portion.
  • a waiting table that makes the rubber mold to be supplied stand by, a transport unit that conveys the rubber mold to the front of the waiting table, and rubber that moves in the left-right direction perpendicular to the moving direction of the clamping device and stands by in the waiting table.
  • a rubber mold supply means for supplying a mold from the supply port to the inside of the clamp portion and a rubber mold transfer means for transferring the rubber mold conveyed by the transport portion to the standby table are provided, and the discharge port is provided with the inside of the clamp portion.
  • the rubber mold transfer means is provided with a filled rubber mold cradle for receiving the filled rubber mold discharged from the rubber mold, and the rubber mold transfer means is provided with the injection port in which the clamping device moves forward in the direction of the injection nozzle and opens in the rubber mold.
  • the rubber mold supply means is provided with the next rubber mold, which is transferred by the rubber mold transfer means and stands by on the standby table, during or after filling the rubber mold with the wax resin. After moving from the rubber mold supply port into the clamp portion and filling the rubber mold with the wax resin, the next rubber mold is pushed between the mold base of the clamp portion and the clamp head to clamp the filled rubber mold. It is characterized in that it is extruded from the inside of the portion and discharged from the discharge port to the filled rubber mold cradle, and the next rubber mold is placed at a predetermined position on the mold base of the clamp portion.
  • the next rubber mold transferred by the rubber mold transfer means and waiting on the waiting table during or after filling the rubber mold with the wax resin is provided.
  • the next rubber mold is transferred to the mold base of the clamp portion and the clamp head.
  • the filled rubber mold is pushed out from the inside of the clamp portion to be discharged from the discharge port to the filled rubber mold cradle, and the next rubber mold is placed in a predetermined position on the mold base of the clamp portion. Can be done.
  • the time to supply can be shortened.
  • the invention according to claim 3 is the wax model injection molding apparatus according to claim 2, wherein the rubber mold transfer means provided on the supply port side of the clamp device is in the same direction as the moving direction of the clamp device. It is composed of a cylinder equipped with a cylinder rod that moves forward and backward, and by advancing the cylinder rod, the next rubber mold transported by the transport unit is extruded and transferred to the standby table at the tip of the cylinder rod. Further, the rubber mold supply means is composed of a cylinder provided with a cylinder rod that advances and retreats in a left-right direction perpendicular to the moving direction of the clamping device, and the cylinder rod is moved forward by the advancement of the cylinder rod. The next rubber mold waiting on the standby table at the tip of the cylinder is supplied from the supply port into the clamp portion.
  • the rubber mold transfer means provided on the supply port side of the clamp device includes a cylinder rod that advances and retreats in the same direction as the movement direction of the clamp device. It is easy because it is composed of a cylinder, and by advancing the cylinder rod, the next rubber mold transported by the transport unit is extruded and transferred to the standby table at the tip of the cylinder rod. With such a configuration, the next rubber mold conveyed by the transfer unit can be reliably transferred to the standby table.
  • the rubber mold supply means is composed of a cylinder provided with a cylinder rod that advances and retreats in a left-right direction perpendicular to the moving direction of the clamp device, and the advance of the cylinder rod causes the standby at the tip of the cylinder rod. Since the next rubber mold waiting on the table is supplied from the supply port into the clamp portion, the next rubber mold waiting on the standby table can be supplied into the clamp portion with a simple configuration. It can be reliably supplied.
  • the rubber mold is pushed between the mold base of the clamp portion and the clamp head by the rubber mold supply means.
  • the next detection unit that detects that there is no rubber mold on the standby table and receives the detection signal from the first detection unit and operates the rubber mold transfer means to be transported by the transfer unit. Detection signals from the first control unit that transfers the rubber mold to the standby table, the second detection unit that detects that the rubber mold has been released after filling the rubber mold with wax resin, and the second detection unit.
  • the rubber mold supply means is operated to push the next rubber mold between the mold base of the clamp portion and the clamp head, and the filled rubber mold is pushed out from the inside of the clamp portion and filled from the rubber mold discharge port. It is characterized by having a second control unit for discharging the rubber mold to the finished rubber mold cradle and mounting the next rubber mold at a predetermined position on the mold base of the clamp portion.
  • a series of operations is automatically and continuously performed from the discharge of the filled rubber mold from the inside of the clamp portion to the supply of the next rubber mold into the clamp portion. be able to.
  • the filled rubber mold is efficiently supplied from the discharge from the inside of the clamp portion to the next rubber mold into the clamp portion. This can be done, and the time from the discharge of the filled rubber mold to the supply of the next rubber mold can be shortened, which can reduce the cost of the wax model injection molding.
  • the rubber mold having a hollow pattern inside is clamped by the clamp portion provided in the clamping device, and the rubber mold is clamped by the wax provided in the device main body of the wax model injection molding device.
  • a step of fitting into an injection nozzle for injecting resin, a step of discharging a filled rubber mold filled with wax resin from the inside of the clamp portion, and a step of supplying the next rubber mold into the clamp portion from which the filled rubber mold is discharged. Includes the process of doing.
  • two steps a step of discharging the filled rubber mold from the inside of the clamp portion and a step of supplying the next rubber mold into the clamp portion from which the filled rubber mold is discharged, are performed by waxing the rubber mold. After filling the resin, the next rubber mold is moved into the clamp part, the filled rubber mold is pushed out from the inside of the clamp part and discharged, and the next rubber mold is supplied into the clamp part. It is a process.
  • a step of discharging the filled rubber mold from the inside of the clamp portion and a step of supplying the next rubber mold into the clamp portion from which the filled rubber mold is discharged.
  • the next rubber mold is moved into the clamp part, the filled rubber mold is pushed out from the inside of the clamp part and discharged, and the next rubber mold is supplied into the clamp part. Since it is one step performed by a series of operations, it is possible to efficiently supply the filled rubber mold from the inside of the clamp part to the next rubber mold clamp part, and from the discharge of the filled rubber mold. It is possible to shorten the time until the next rubber mold is supplied.
  • FIG. 1 is a front view showing a part of the wax model injection molding apparatus of this example and a cross section thereof
  • FIG. 2 is the left side surface of the clamp device in the wax model injection molding apparatus shown in FIG. 1 in which the apparatus main body is omitted.
  • FIGS. 3 and 3 are perspective views in which the main body of the wax model injection molding apparatus shown in FIG. 1 and the clamp device are separated, and FIGS. 4 to 9 supply a rubber mold to the clamp portion of the clamp device to provide a filled rubber mold. It is explanatory drawing which shows the process of discharging.
  • the wax model injection molding device 1 of this example is composed of a device main body 2 and a clamp device 3 attached to the device main body 2.
  • the apparatus main body 2 is provided with a pressure tank for storing wax resin and a vacuum tank (not shown), and the injection nozzle 4 is provided so as to protrude to the outside.
  • the apparatus main body 2 configured as described above is known (Patent No. 6059248), and in this example, the known apparatus main body is used.
  • the clamp device 3 includes a clamp portion 5 and a support base 6.
  • the clamp portion 5 includes a mold 8 having a flat surface portion 8a on which the rubber mold 7 is placed, and a clamp head 9 that can move vertically with respect to the flat surface portion 8a of the mold base 8.
  • a support frame 10 is installed on a support base 6, and the clamp head 9 is supported by the support frame 10 so as to be movable in the vertical direction.
  • an air-driven cylinder 12 is installed on the upper plate portion 11 of the support frame 10.
  • the cylinder rod 13 of the cylinder 12 can be raised and lowered so as to approach and separate from the flat surface portion 8a of the template 8 by driving the cylinder 12.
  • a clamp head 9 is attached to the tip of the cylinder rod 13, and by lowering the cylinder rod 13, the rubber mold 7 mounted on the flat surface portion 8a of the mold 8 is pressed and fixed from above by the clamp head 9. It is designed to do.
  • the injection port 14 which opens into the rubber mold 7 faces the injection nozzle 4 protruding outward from the apparatus main body 2 and It is positioned and fixed so that it is located on the same axis.
  • the clamp portion 5 is supported on the support base 6 so as to be movable back and forth in the direction of the injection nozzle 4 of the apparatus main body 2, and the clamp portion 5 clamping the rubber mold 7 is supported by the ejection nozzle of the apparatus main body 2.
  • the injection port 14 opening in the rubber mold 7 and the injection nozzle 4 are fitted and separated from each other.
  • a groove-shaped portion 15 is formed on the lower surface of the clamp portion 5, and the upper surface of the support base 6 is slidably slidable on the groove-shaped portion 15.
  • a protruding portion 16 to be fitted is formed, and the clamp portion 5 moves along the protruding portion 16, but is not particularly limited.
  • an air-driven cylinder is installed in the apparatus main body 2 (not shown), and the tip of the cylinder rod 17 of the cylinder is attached to the clamp portion 5.
  • the clamp portion 5 is connected and is moved back and forth in the two directions of the device main body by the cylinder rod 17 that moves forward and backward by the drive of the cylinder, but is not particularly limited.
  • the clamp portion 5 is provided with a supply port 18 for supplying the rubber mold 7 into the clamp portion 5 on one side (left side in the drawing in this example) in the left-right direction perpendicular to the front-back movement direction of the support frame 10.
  • a discharge port 19 for discharging the filled rubber mold 7a from the inside of the clamp portion 5 is provided on the other side (on the right side in the drawing in this example).
  • the sizes of the supply port 18 and the discharge port 19 are not particularly limited as long as they do not interfere with the supply and discharge of the rubber mold 7.
  • the transport unit 21 that transports the mold 7 to the front of the standby table 20 and the rubber mold 7 that moves in the left-right direction perpendicular to the movement direction of the clamp unit 5 and stands by on the standby table 20 are transferred from the supply port 18 to the clamp unit 5. It is provided with a rubber mold supply means 22 for supplying to the inside and a rubber mold transfer means 23 for transferring the rubber mold 7 conveyed by the transfer unit 21 to the standby table 20.
  • the standby table 20 is connected to the mold table 8 and moves together with the clamp portion 5 as the clamp portion 5 moves.
  • the transport unit 21 is composed of a belt conveyor 24, and the transport belt 26 mounted on the gantry 25 is provided so as to be adjacent to the standby stand 20, and the transport surface 26a of the transport belt 26 and the standby stand 20 are provided.
  • the positions of the surfaces of the flat surface portion 20a of the above are the same height.
  • the transport belt 26 is intermittently rotated by a drive means (not shown) to sequentially transport the rubber mold 7 to the front of the standby table 20.
  • the rubber mold supply means 22 is composed of an air-driven cylinder 27 provided with a cylinder rod 28 that advances and retreats in the left-right direction perpendicular to the moving direction of the clamp portion 5. Then, by advancing the cylinder rod 28, the rubber mold 7 waiting on the waiting table 20 by the push plate 29 provided at the tip of the cylinder rod 28 is pushed into the clamp portion 5 from the supply port 18 to be supplied, and the mold table 8 is supplied. It is designed to be positioned at a fixed position on the flat surface portion 8a. The cylinder 27 is fixed to the waiting table 20 by the fixing portion 30.
  • the rubber type transfer means 23 is composed of an air-driven cylinder 31 provided with a cylinder rod 32 that moves forward and backward in the same direction as the movement direction of the clamp portion 5. Then, by advancing the cylinder rod 32, the rubber mold 7 which has been conveyed to the front of the standby table 20 by the conveyor belt 26 of the belt conveyor 24 constituting the conveyor 21 by the push plate 33 provided at the tip of the cylinder rod 32. It is extruded and transferred to the waiting table 20.
  • the cylinder 31 is fixed to the pedestal 25 of the belt conveyor 24 by the fixing portion 34.
  • the discharge port 19 of the clamp portion 5 is provided with a filled rubber mold cradle 35 that is filled with the wax resin in the rubber mold 7 and receives the filled rubber mold 7a discharged from the clamp portion 5.
  • the filled rubber mold cradle 35 is composed of a roller conveyor 36, and the roller conveyor 36 is installed so as to incline downward from the discharge port 19, and is discharged from the discharge port 19 to be discharged from the roller conveyor 36.
  • the filled rubber mold 7a received above moves on the roller conveyor 36 and is sent to a predetermined place.
  • the clamp portion 5 moves forward in the direction of the injection nozzle 4 protruding from the apparatus main body 2 and opens in the rubber mold 7 clamped by the clamp portion 5.
  • the next rubber mold 7b conveyed by the conveying unit 21 is waited for. It is designed to be transferred to the table 20.
  • the next rubber mold 7b transferred by the rubber mold supply means 22 and waiting on the waiting table 20 is clamped during or after filling the rubber mold 7 with the wax resin.
  • the next rubber mold 7b is pushed between the mold 8 and the clamp head 9 of the clamp portion 5.
  • the filled rubber mold 7a is pushed out from the inside of the clamp portion 5 and discharged from the discharge port 19 to the filled rubber mold cradle 35, and the next rubber mold 7b is placed at a predetermined position on the mold base 8 of the clamp portion 5. It has become like.
  • the rubber mold 7 is pushed between the mold base 8 of the clamp portion 5 and the clamp head 9 by the rubber mold supply means 22, and the standby base 20 does not have the rubber mold 7.
  • the cylinder 31 is driven to advance the cylinder rod 32, and the rubber is conveyed to the supply port 18 side by the transfer belt 26 of the belt conveyor 24.
  • the first control unit 38 that pushes out the rubber mold 7 and transfers it to the standby table 20, and the second detection unit that detects that the clamp of the filled rubber mold 7a is released after the rubber mold 7 is filled with the wax resin.
  • the cylinder 27 In response to the detection signals from 39 and the second detection unit 39, the cylinder 27 is driven to advance the cylinder rod 28, and the next rubber mold 7b waiting on the standby table 20 is transferred from the supply port 18 into the clamp unit 5.
  • the filled rubber mold 7a is pushed out from the inside of the clamp portion 5 and discharged from the discharge port 19, and the next rubber mold 7b is discharged from the mold portion 8 of the clamp portion 5.
  • the second control unit 40 is provided at a fixed position on the flat surface portion 8a of the above.
  • the installation location of the first detection unit 37 and the second detection unit 39 is not limited to this example, and may be installed at any position as long as the detection can be performed.
  • the second detection unit 39 of this example detects that the clamp of the filled rubber mold 7a is released by detecting that the cylinder 12 is driven and the cylinder rod 13 is raised.
  • the release detection method is not limited to this example, and may be detected by another method.
  • the cylinder 27 constituting the rubber mold supply means 22 is driven to retract the cylinder rod 28, and the cylinder 31 constituting the rubber mold transfer means 23 is driven to advance the cylinder rod 32 to advance the transport unit 21.
  • the rubber mold 7 transported to the front of the standby table 20 is extruded by the transfer belt 26 constituting the standby table 20 and transferred to the standby table 20 (FIG. 4).
  • the cylinder rod 32 of the rubber mold transfer means 23 is retracted, the cylinder rod 28 of the rubber mold supply means 22 is advanced, and the rubber mold 7 waiting on the standby table 20 is moved from the supply port 18 into the clamp portion 5. It is pushed into and supplied to a fixed position on the flat surface portion 8a of the mold 8.
  • the transport belt 26 of the transport unit 21 is driven to transport the next rubber mold 7b to the front of the standby table 20 (FIG. 5).
  • the rubber mold 7 is clamped by the clamp portion 5, the cylinder rod 28 of the rubber mold supply means 22 is retracted, the clamp portion 5 is advanced toward the two apparatus main bodies in this state, and the rubber mold 7 is attached to the injection nozzle 4.
  • the injection port 14 is fitted, and filling of the rubber mold 7 with the wax resin is started (FIG. 6).
  • the clamp device 3 moves forward in the direction of the injection nozzle 4, and the injection port 14 and the injection nozzle 4 that open in the rubber mold 7 move forward.
  • the cylinder 31 constituting the rubber mold transfer means 23 is driven to advance the cylinder rod 32, and the transfer belt 26 constituting the transfer portion 21 is used.
  • the next rubber mold 7b that has been conveyed to the front of the standby table 20 is extruded and transferred to the standby table 20 (FIG. 7).
  • the cylinder rod 28 of the rubber mold supply means 22 is advanced, and the next rubber mold 7b waiting on the standby table 20 is pushed into the clamp portion 5 (FIG. 8).
  • the rubber mold 7b is pushed in by the force that the clamped rubber mold 7 does not move.
  • the filling of the wax resin into the rubber mold 7 is completed, the clamp portion 5 is retracted to separate the injection nozzle 4 and the rubber mold 7, and then the next rubber mold 7b is moved into the clamp portion 5.
  • the next rubber mold 7b may be pushed during filling.
  • the clamp of the filled rubber mold 7a is released, the cylinder rod 28 of the rubber mold supply means 22 is further advanced, and the filled rubber mold 7a is clamped by the next rubber mold b pushed into the clamp portion 5. It is extruded from the inside of 5 and discharged from the discharge port 19 to the filled rubber mold cradle 35, and the next rubber mold 7b is placed at a predetermined position of the mold base 8 of the clamp portion 5 (FIG. 9).
  • the cylinder rod 28 is advanced after the second detection unit 39 detects that the clamp of the filled rubber mold 7a has been released, but the next rubber mold 7b is pushed by the cylinder rod 28.
  • the next rubber which is transferred by the rubber mold transfer means 23 and stands by on the waiting table 20 during or after filling the rubber mold 7 with the wax resin.
  • the mold 7b is moved into the clamp portion 5 from the supply port 18 provided in the clamp portion 5 by the rubber mold supply means 22, and after the rubber mold 7 is filled with the wax resin, the next rubber mold 7b is transferred to the clamp portion 5. It is pushed between the mold 8 and the clamp head 9, and the filled rubber mold 7a is pushed out from the inside of the clamp portion 5 to be discharged from the discharge port 19 to the filled rubber mold cradle 35, and the next rubber mold 7b is discharged to the clamp portion 5. Can be placed in a predetermined position on the mold 8 of the above.
  • the rubber type transfer means 23 provided on the supply port 18 side of the clamp portion 5 is composed of a cylinder 31 provided with a cylinder rod 32 that advances and retreats in the same direction as the movement direction of the clamp portion 5.
  • the next rubber mold 7b transported by the transport unit 21 is transferred to the extrusion standby table 20 at the tip of the cylinder rod 32, so that the transport unit has a simple configuration.
  • the next rubber mold 7b conveyed by 21 can be reliably transferred to the standby table 20.
  • the rubber mold supply means 22 is composed of a cylinder 27 provided with a cylinder rod 28 that advances and retreats in a left-right direction perpendicular to the moving direction of the clamp portion 5, and is formed at the tip of the cylinder rod 28 by advancing the cylinder rod 28. Since the next rubber mold 7b waiting on the waiting table 20 is supplied from the supply port 18 into the clamp portion 5, the next rubber mold 7b waiting on the waiting table 20 has a simple configuration. Can be reliably supplied into the clamp portion 5.
  • the first detection unit 37 that detects that the standby table 20 does not have the rubber mold 7 and the rubber mold transfer means 23 that receives the detection signal from the first detection unit 37 are operated by the transfer unit 21.
  • the rubber mold supply means 22 is operated to push the next rubber mold 7b between the mold 8 and the clamp head 9 of the clamp unit 5, and the filled rubber is filled.
  • a second control unit that pushes the mold 7a out of the clamp portion 5 and discharges it from the discharge port 19 to the filled rubber mold cradle 35, and mounts the next rubber mold 7b at a predetermined position on the mold base 8 of the clamp portion 5. Since the 40 is provided, a series of operations can be automatically and continuously performed from the discharge of the filled rubber mold 7a from the inside of the clamp portion 5 to the supply of the next rubber mold 7b into the clamp portion 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
PCT/JP2020/025927 2020-07-01 2020-07-01 ワックスモデル射出成型方法およびワックスモデル射出成型装置 WO2022003885A1 (ja)

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JP2022532937A JP7498516B2 (ja) 2020-07-01 2020-07-01 ワックスモデル射出成型方法およびワックスモデル射出成型装置
PCT/JP2020/025927 WO2022003885A1 (ja) 2020-07-01 2020-07-01 ワックスモデル射出成型方法およびワックスモデル射出成型装置

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PCT/JP2020/025927 WO2022003885A1 (ja) 2020-07-01 2020-07-01 ワックスモデル射出成型方法およびワックスモデル射出成型装置

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Citations (4)

* Cited by examiner, † Cited by third party
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