WO2008038694A1 - Buse de carotte et son procédé de production - Google Patents
Buse de carotte et son procédé de production Download PDFInfo
- Publication number
- WO2008038694A1 WO2008038694A1 PCT/JP2007/068764 JP2007068764W WO2008038694A1 WO 2008038694 A1 WO2008038694 A1 WO 2008038694A1 JP 2007068764 W JP2007068764 W JP 2007068764W WO 2008038694 A1 WO2008038694 A1 WO 2008038694A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sprue
- main body
- water channel
- body water
- bushing
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 210000000476 body water Anatomy 0.000 claims abstract description 133
- 239000012768 molten material Substances 0.000 claims abstract description 48
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 238000001746 injection moulding Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 239000002184 metal Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 6
- APVPOHHVBBYQAV-UHFFFAOYSA-N n-(4-aminophenyl)sulfonyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 APVPOHHVBBYQAV-UHFFFAOYSA-N 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 208000015943 Coeliac disease Diseases 0.000 description 168
- 102000010637 Aquaporins Human genes 0.000 description 108
- 239000000498 cooling water Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 108091006146 Channels Proteins 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003672 processing method Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 241000218657 Picea Species 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/12—Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the present invention relates to a sprue bush and a method for manufacturing the same.
- a mold used for injection molding has a sprue bush that is pressed against an injection port portion of an injection molding machine that injects a molten material, and a shape portion for forming a molded product.
- the mold has a sprue bush having a sprue that is a space into which the molten material is injected, a cavity that is a space that is filled with the molten material, and a runner that is a flow path of the molten material. Sprue and cavity are connected through the runner.
- the volume per unit area is larger for sprues and runners than for cavity. Therefore, the time required for the molten material filled in the sprue or runner to harden is longer than the time required for the molten material filled in the cavity to harden. For this reason, shortening the time required for the molten material filled in the sprue or runner to harden contributes to the improvement of production efficiency.
- the sprue bushing (hereinafter referred to as a sprue bushing or the like) that forms the runner is cooled with cooling water
- the sprue bushing or the like is cooled inside the sprue bushing or the like in order to increase the cooling efficiency.
- a water supply port for supplying the cooling water and a drain port for discharging the cooling water are required.
- the water supply port and the drain port need to connect the flow path of the cooling water formed inside the sprue bush and the outside of the spruce bush.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-18909 (Claim 1, FIG. 2, etc.)
- the present invention has been made to solve the above-described problems, and it is possible to efficiently cool the molten material filled in the sprue and to suppress the quality deterioration of the molded product.
- An object of the present invention is to provide a sprue bushing and a manufacturing method thereof.
- the first feature of the present invention is that the inlet is formed to be connectable to the injection port of the injection molding machine at one end, and the discharge is formed to be connectable to the mold cavity when attached to the mold at the other end.
- a sprue with a mouth is provided inside the main body, and a cylindrical sprue bushing body with a main body water channel embedded in a part of the area excluding the sprue is projected from the inlet side end of the sprue bushing body and connected to the sprue bushing body.
- the sprue bush is provided with a flange portion in which a flange portion water passage continuing to the main body water passage and leading to the outside is embedded.
- a second feature of the present invention is that a metal powder is applied, and a hollow substantially conical sprue having a diameter increasing toward the other end of the molten material in the flow direction is provided inside the main body.
- One end on the small diameter side of the sprue is formed so that it can be connected to the injection port of the injection molding machine, and the other end on the large diameter side of the sprue is connected to the mold cavity when attached to the mold.
- a cylindrical sprue bushing body that is formed and has a body channel embedded in the part of the area excluding the sprue so that it surrounds the sprue on the sprue outlet side.
- the gist of the present invention is a sprue bushing manufacturing method including: a step of performing heat processing according to the above and further stacking and stacking to form a three-dimensional shape; and a step of cutting into a three-dimensional shape.
- FIG. 1 is a perspective view of a sprue bushing 10 according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing the configuration of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing the configuration of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 4 is a cross-sectional view for explaining assembly of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 5 is a flowchart showing a method for manufacturing the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 6 is a manufacturing process diagram (manufacturing apparatus schematic diagram) of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 7 is a manufacturing process diagram (manufacturing apparatus schematic diagram) of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 8 is a manufacturing process diagram of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 9 is a manufacturing process diagram of the sprue bushing 10 according to the first embodiment of the present invention ((a) top view,
- FIG. 10 is a manufacturing process diagram of the sprue bushing 10 according to the first embodiment of the present invention ((a) top view, (b) cross-sectional view).
- FIG. 11 is a manufacturing process diagram of the sprue bushing 10 according to the first embodiment of the present invention ((a) top view, (b) cross-sectional view).
- FIG. 12 is a manufacturing process diagram ((a) top view, (b) sectional view) of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 13 is a manufacturing process diagram ((a) top view (b) sectional view) of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 14 is a view for explaining the method of manufacturing the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 15 is a cross-sectional view of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 16 is a cross-sectional view of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 17 is a cross-sectional view of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 18 is a cross-sectional view of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 19 is a cross-sectional view of the sprue bushing 10 according to the first embodiment of the present invention.
- FIG. 20 is a perspective view of a sprue bushing 10 according to a second embodiment of the present invention.
- FIG. 21 is a cross-sectional view showing a configuration of a sprue bushing 10 according to a second embodiment of the present invention.
- FIG. 22 is a perspective view of a sprue bushing 10 according to a third embodiment of the present invention.
- FIG. 23 is a cross-sectional view showing a configuration of a sprue bushing 10 according to a third embodiment of the present invention.
- FIG. 24 is a cross-sectional view showing a configuration of a sprue bushing 10 according to a third embodiment of the present invention.
- FIG. 1 is a perspective view of a sprue bushing 10 according to a first embodiment of the present invention.
- the sprue bushing 10 As shown in FIG. 1, the sprue bushing 10 according to the first embodiment is provided with a hollow substantially conical sprue 12 having a diameter increasing from one end to the other end in the flow direction of the molten material.
- the sprue 12 has one end on the small diameter side that can be connected to the injection port of the injection molding machine, and the other end on the large diameter side of the sprue 12 is connected to the mold cavity when attached to the mold.
- the sprue bushing body 61 extends from the inlet 11 side end and is connected to the sprue bushing body 61.
- the flange section waterways 15a and 15b are embedded in the mold so as to continue to the body waterways 14a, 14b, and 14c and to the outside.
- a flanged portion 60 provided with a water supply port 16a and a drainage port 16b continuous to the flanged water channels 15a and 15b on the supported surface.
- the main body water channel 14 includes a first main body water channel 14a, a second main body water channel 14b, and a third main body water channel 14c.
- the first main body water channel 14a and the second main body water channel 14b are formed in parallel to the central axis of the sprue 12 in the flow direction of the molten material.
- one end of the first main body water channel 14a and the second main body water channel 14b is connected to the water supply port 16a or the water discharge port 16b via the flange part water channels 15a and 15b, respectively.
- the other ends of the first main body water channel 14a and the second main body water channel 14b are formed to surround the sprue 12 on the sprue outlet 16b side. Are connected to each other through main channel 14c.
- a part of the flange section water passage 15a is formed in the flange portion 60 (flange portion 60a).
- the water supply port 16a provided in the supported surface 10b and the main body water channel 14a are connected via a flanged water channel 15a.
- at least a part of the flange section water channel 15b is formed in the flange portion 60 (flange portion 60b).
- the drainage port 16b provided in the supported surface 10c and the main body waterway 14b are connected via the flange section waterway 15b!
- the main body water channel 14c includes a main body portion 61 (the main body portion 61a and the main body portion). 61b).
- the main body water channel 14a and the main body water channel 14b are connected via the main body water channel 14c.
- the main body water channel 14c has a semicircular arc shape surrounding the sprue 12 over a half circumference.
- the sprue bushing 10 has a pressing surface 10a against which the injection port 20 for injecting the molten material is pressed.
- the sprue bushing 10 is assembled to the upper mold 31 (the upper mold 31a and the upper mold 31b) via the supported surface 10b and the supported surface 10c.
- the supported surface 10b is provided with a water supply port 16a for supplying cooling water.
- the supported surface 10c is provided with a drain port 16b for draining the cooling water.
- the sprue bushing 10 has a sprue 12 formed along the injection direction P of the molten material that the injection port portion 20 injects from the injection port 21.
- a hollow portion that leads from the inlet 11 to the outlet 13 is formed inside the sprue bush 10 by the spnolet 12.
- the sprue 12 has a divergent shape that gradually spreads from the inlet 11 toward the outlet 13 in order to prevent material residue from occurring in the sprue 12.
- the injection port 11 is an opening formed in the pressing surface 10a and into which the molten material is injected. Further, the discharge port 13 is opened toward a runner 40 described later.
- the sprue bushing 10 has a cylindrical main body water channel 14 (main body water channel 14a and main body water channel 14b) that is a cooling water channel formed along the injection direction P of the molten material.
- the sprue bush 10 includes a cylindrical flanged water channel 15 (a flanged water channel 15a and a flanged water channel 15b) that is a cooling water channel formed along the supported surface 1 Ob and the supported surface 10c. Have.
- the water supply port 16a provided in the supported surface 10b and the main body water channel 14a are connected via the flange part water channel 15a.
- the drainage port 16b provided in the supported surface 10c and the main body waterway 14b are connected via a flanged waterway 15b.
- the upper mold 31a has a water supply channel 33a for supplying cooling water to the water supply port 16a.
- the upper mold 31b has a drainage channel 33b for draining the cooling water from the drainage port 16b.
- a packing member 17a for example, an O-ring or the like
- the packing member 17a is provided so as to surround the periphery of the water supply port 16a.
- a packing member 17b (for example, O-ring) is provided between the supported surface 10c and the upper mold 31b to prevent leakage of cooling water drained from the drain port 16b.
- the packing member 17b is provided so as to surround the periphery of the water supply port 16a.
- a runner 40 is formed between the lower mold 32 and the upper mold 31a and between the lower mold 32 and the sprue bushing 10. Through the runner 40, the cavity 50 and the sprue 12 formed between the lower mold 32 and the upper mold 31a are connected.
- the molten material injected by the injection port 20 includes the sprue 12 and the runner.
- the molten material filled in the cavity 50 through 40 and filled in the cavity 50 is taken out as a molded product after being cooled.
- the metal is formed as an integral member with a metal having good strength.
- the main body portion 61 and the flange portion 60 are seamlessly connected. That is, the sprue bushing 10 includes the main body portion 61 and the flange portion 60 as an integral member. Further, the main body water channels 14a, 14b, 14c are formed in the main body portion 61, and the flange portion water channels 15a, 15b are formed in the flange portion 60. Therefore, the cooling water flowing through the main body water channels 14a, 14b, and 14c directly cools the molten material filled in the sprue 12, and the cooling efficiency of the molten material filled in the sprue 12 is improved.
- flange water channels 15a, 15b connected to the outside of the main body water channels 14a, 14b, 14c and the flange portion 60 are formed along the supported surfaces 16a, 16b. Further, when the injection port of the injection molding machine is pressed against the pressing surface 10a, the supported surfaces 16a and 16b provided on the flange portions 60a and 60b are pressed against the support member, so that the supported surfaces 16a and 16b And the support member are in close contact with each other. Therefore, the main water channels 14a, 14b, 14c and the flange section water The cooling water flowing in the passages 15a and 15b is unlikely to leak along the side surface of the sprue bushing 10, and the cooling water can be prevented from entering the runner or the cavity.
- the molten material filled in the sprue can be efficiently cooled, and quality deterioration of the molded product can be suppressed.
- FIG. 5 is a diagram illustrating a method for manufacturing the sprue bushing 10 according to the first embodiment of the present invention.
- Fig. 14 shows the top and bottom of the spruce bush 10 in Fig. 2 reversed.
- Fig. 9 (a) (b), 010 (a) (b), Fig. 11 (a) (b), 012 (a) (b), 013 (a) (b) shows the manufacturing process of the spruce bush 10 14 shows a cross-sectional view (FIG. 15), a D cross-sectional view (FIG. 16), an E cross-sectional view (FIG. 17), a F cross-sectional view (FIG.
- the sprue bushing 10 is made of metal.
- the metal stereolithography combined processing method means that a metal powder material is converted into a YAG laser or CO laser.
- Metal stereolithography combined processing apparatus 80 as shown in FIG. 6 is prepared.
- Metal stereolithography composite processing apparatus 80 includes a work stage 81 that can be moved up and down to hold a work, a metal powder stage 82 that can be moved up and down to hold metal powder 90 arranged with a wall 84 sandwiched between work stage 81, and And a blade 83 disposed on the surface of the metal powder 90.
- the metal stereolithography combined processing apparatus 80 further includes a light source 86 for irradiating laser light and a processing machine 85.
- the metal stereolithography combined machining apparatus is not particularly limited to the metal stereolithography combined machining apparatus 80, and various apparatuses can be used.
- step S10 the metal powder as the material of the sprue bushing 10 is applied over a predetermined thickness.
- the work stage 81 and the metal powder stage 82 is moved up and down to change the relative position, and the blade 83 is moved when the surface of the metal powder 90 is higher than the upper end of the wall 84.
- step S20 a laser beam is irradiated from the light source 86 to the region (pattern) defined by the phantom line in FIG. Sinter.
- the laser beam is not irradiated to the portion to be hollowed (the portion corresponding to the sprue 12, main body water channel 14, flange water channel 15, inlet 11, water supply port 16a, drain port 16b). That is, only the portions corresponding to the flange portion 60 and the main body portion 61 are irradiated with the laser beam.
- the metal powder 91 is integrated with a portion that has already been sintered by laser light irradiation.
- step S 10 In the same manner as in step S 10, the metal powder 91 is applied onto the sintered body 10 C, and further, in step S 20, laser light is irradiated according to the pattern corresponding to FIGS. 10 (a) and (b). In this case, the portion corresponding to the sprue 12 and the flange section water channel 15 (the flange section water channel 15a and the flange section water channel 15b) shown in FIG. Only a portion is irradiated with laser light. Then, a sintered body 10D as shown in FIGS. 10 (a) and 10 (b) is obtained. Steps S10 and S20 are repeated to form sintered bodies 10E, 10F, and 10G as shown in FIGS. 11 (a) (b), 12 (a) 03), and 13 (&) (b). Finally, the sprue bushing 10 is obtained.
- the spnolet 12 the main body water channel 14 (main body water channel 14a and the main body water channel 14b), and the flange section water channel 15 (the flange section water channel 15a and the flange section shown in FIG.
- the laser beam is irradiated only to the portion corresponding to the flange portion 60 and the main body portion 61 without irradiating the portion corresponding to the partial water channel 15b).
- step S10 Number of times the processing of step S10 and step S20 is repeated in step S30
- step S40 the machine 85 in FIG. 7 is operated on the already sintered portion to perform cutting work and / or shape adjustment.
- step S50 it is determined whether or not the sprue bushing 10 is completed.
- the series of processing ends, and when the sprue bushing 10 is completed! /, N! /, The processing returns to step S10.
- the sprue bushing 10 having a complicated shape can be easily manufactured by using the metal stereolithography combined processing method.
- the sprue bushing 10 includes the flange portion 60 and the main body portion 61 as an integral member. That is, the flange portion 60 and the main body portion 61 are connected seamlessly. Further, the main body water channel 14 is formed in the main body portion 61, and the flange portion water channel 15 is formed in the flange portion 60. Therefore, the cooling power of the cooling water flowing through the main body portion 61 is directly transmitted to the molten material filled in the sprue 12, and the cooling efficiency of the molten material filled in the sprue 12 is improved.
- a flange portion water channel 15 connected to the main body water channel 14 and the water supply port 16a (or the drain port 16b) is formed along the supported surface 10b (or the supported surface 10c). Further, when the injection port 20 is pressed against the pressing surface 10a, the supported surface 10b (or the supported surface 10c) provided on the flange portion 60 is pressed against the upper mold 31. (Or, the supported surface 10c) and the upper mold 31 are in close contact with each other. Therefore, the cooling water flowing through the main body water channel 14 and the flange portion water channel 15 is unlikely to leak along the side surface of the sprue bushing 10, and the cooling water can be prevented from entering the runner 40 or the cavity 50.
- the main body water channel 14c having a semicircular arc shape surrounding the sprue 12 over a half circumference is provided on the discharge port 13 side. Yes. That is, the volume of the main body water channel 14 on the discharge port 13 side is larger than the volume of the main body water channel 14 on the injection port 11 side.
- the main body water channel 14d and the main body water channel 14e have a gradient along the inner wall of the sprue 12 having a divergent shape.
- the sprue 12 has a divergent shape that gradually widens from the inlet 11 toward the outlet 13. That is, as shown in FIG. 21, the extension line L of the inner wall 12a of the sprue 12 has a gradient ⁇ with respect to a straight line L substantially parallel to the injection direction of the molten material. Also
- the extension line L of the inner wall 12b of the sprue 12 is a straight line L substantially parallel to the injection direction of the molten material.
- the main body water channel 14 a has a gradient along the inner wall 12 a of the sprue 12. Specifically, the center line C of the main water channel 14a has a gradient ⁇ with respect to a straight line substantially parallel to the injection direction of the molten material, like the inner wall 12a. That is, the main body waterway 14a and the inner wall 12a of the sprue 12
- the distance is kept constant.
- the main body water channel 14b has a gradient along the inner wall 12b of the sprue 12. Specifically, the center line C of the main body channel 14b is substantially flat with the injection direction of the molten material, like the inner wall 12b.
- the distance to 12b is kept constant.
- the main body water channel 14a has a gradient along the inner wall 12a of the sprue 12, so that the main body water channel 14a and the inner wall 1 of the sprue 12 are provided.
- the distance from 2a is kept constant, and it is possible to reduce the cooling unevenness of the molten material filled in the sprue 12 with a force S.
- the main body water channel 14b has a gradient along the inner wall 12b of the sprue 12, the distance between the main body water channel 14b and the inner wall 12b of the sprue 12 is kept constant, and the melt filled in the sprue 12 is melted. Uneven cooling of the material can be reduced.
- the main body water channel includes a first main body water channel 14a, a fourth main body water channel 14d, and a fifth main body water channel 14e.
- the first main body water channel 14a is formed parallel to the central axis of the sprue.
- One end of the first main body water channel 14a is connected to the water supply port via the flange section water channel, and the other end of the first main body water channel 14a has the cross-sectional shape obtained by going straight in the flow direction of the molten material of the sprue.
- a sprue defined by a region having a substantially C-shaped cross section including a concentric arc and a circle of the sprue cross section is connected to a fourth main water channel 14d formed so as to surround the sprue on the large diameter side.
- the other end of the fourth main body water channel 14d is formed so as to be connected to the drain port 16b via a flanged water channel 15b.
- the third main body water channel 14c that connects the first main body water channel 14a and the second main body water channel 14b has a semicircular arc shape that surrounds the sprue 12 over a half circumference.
- the fourth main body water channel 14d that connects the first main body water channel 14a and the fifth main body water channel 14e has a substantially arc shape surrounding the sprue 12 over substantially the entire circumference. It has a shape.
- the fifth main body water channel 14 e has a spiral shape along the sprue 12.
- the fourth main body water channel 14d has a substantially arcuate shape surrounding the sprue 12 over substantially the entire circumference.
- the fourth main body water channel 14d that connects the first main body water channel 14a and the fifth main body water channel 14e surrounds the sprue 12 over substantially the entire circumference. It has a substantially arc shape.
- the fourth main body channel 14d is provided on the outlet 13 side. It has been. That is, the capacity force of the fourth main body water channel 14d provided on the discharge port 13 side is larger than that in the first embodiment described above.
- the water supply port 16a is formed on the supported surface 10b, and the drain port 16b is a force formed on the supported surface 10c. is not.
- the water supply port 16a and the drain port 16b may be provided in any part as long as it is a part other than the pressing surface 10a.
- the main body water channel 14 and the flanged water channel 15 have a cylindrical shape, but are not limited thereto.
- the shape of the main body water channel 14 may be appropriately changed according to the cooling efficiency of the molten material filled in the sprue 12.
- the shape of the flange section 15 can be appropriately changed according to the cooling water supply efficiency and cooling water drainage efficiency.
- the main body water channel 14c that connects the main body water channel 14a and the main body water channel 14b is a force that is provided only on the discharge port 13 side.
- the number of main body water channels 14c may be plural, and the position of the main body water channels 14c may be provided closer to the inlet 11 than in the first to third embodiments.
- the support member that supports the sprue bushing 10 is the force S that is the upper mold 31, and is not limited to this. Specifically, a support member that supports the sprue bushing 10 may be provided separately from the upper mold 31.
- the sprue bushings 10, 101, 102 are manufactured using a metal photo-molding composite processing method, but the present invention is not limited to this. Specifically, the sprue bushing 10, 101, 102 is cut by cutting a metal block to form the sprue bushing 10, 101, 102.
- the punolet 12, the main body water channel 14, the flanged water channel 15, the injection port 11, the water supply port 16a, and the drain port 16b may be formed by cutting.
- the sprue bushing 10, main body waterway 14, flange section waterway 15, injection port 11, water supply port 16a and drainage port 16b are placed in the forging furnace, and the material for making up the sprue bushing 10 is added.
- the sprue 12, the main body water channel 14, the flange part water channel 15, the inlet 11, the water supply port 16 a and the water outlet 16 b may be formed by melting the soot after pouring into the forging furnace.
- the water supply port 16a and the drain port 16b are formed.
- the cooling water is not only injected from the water supply port 16a and discharged from the water discharge port 16b, but also injected from the water discharge port 16b and from the water supply port 16a. It may be discharged.
- a sprue bushing and a method for manufacturing the sprue bushing that can efficiently cool the molten material filled in the sprue and suppress the quality deterioration of the molded product.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020097006888A KR101425691B1 (ko) | 2006-09-27 | 2007-09-27 | 스프루 부시 및 그 제조 방법 |
CN2007800360240A CN101535026B (zh) | 2006-09-27 | 2007-09-27 | 浇道套及其制造方法 |
JP2008536414A JP5001289B2 (ja) | 2006-09-27 | 2007-09-27 | スプルーブッシュ及びその製造方法 |
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JP2006262536 | 2006-09-27 | ||
JP2006-262536 | 2006-09-27 |
Publications (1)
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WO2008038694A1 true WO2008038694A1 (fr) | 2008-04-03 |
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ID=39230129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/068764 WO2008038694A1 (fr) | 2006-09-27 | 2007-09-27 | Buse de carotte et son procédé de production |
Country Status (5)
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JP (1) | JP5001289B2 (ja) |
KR (1) | KR101425691B1 (ja) |
CN (1) | CN101535026B (ja) |
TW (1) | TWI410319B (ja) |
WO (1) | WO2008038694A1 (ja) |
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JP2010194719A (ja) * | 2009-02-23 | 2010-09-09 | Sekisou Kanagata Co Ltd | スプルーブッシュ及びスプルーブッシュの製造方法 |
JP2011218735A (ja) * | 2010-04-13 | 2011-11-04 | Shin-Nihon Tech Inc | 射出成形用スプルーブッシュおよび射出成形型装置 |
JP2012020485A (ja) * | 2010-07-15 | 2012-02-02 | Ngk Insulators Ltd | スプルーブッシュとその製造方法 |
CN103895186A (zh) * | 2014-04-15 | 2014-07-02 | 昆山市大久电子有限公司 | 双管式水冷防拉丝浇口套 |
EP3175966A1 (en) * | 2015-12-01 | 2017-06-07 | Taiwan Additive Manufacturing Corporation | Air-cooled sprue bush for mold |
WO2017110007A1 (ja) * | 2015-12-25 | 2017-06-29 | パナソニックIpマネジメント株式会社 | 金型および金型の製造方法 |
WO2018003882A1 (ja) | 2016-06-29 | 2018-01-04 | パナソニックIpマネジメント株式会社 | スプルブッシュ |
WO2018003881A1 (ja) | 2016-06-29 | 2018-01-04 | パナソニックIpマネジメント株式会社 | スプルブッシュおよびその製造方法 |
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CN103895186B (zh) * | 2014-04-15 | 2016-08-17 | 昆山一邦泰汽车零部件制造有限公司 | 双管式水冷防拉丝浇口套 |
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KR20180086467A (ko) | 2015-12-25 | 2018-07-31 | 파나소닉 아이피 매니지먼트 가부시키가이샤 | 금형 및 금형의 제조 방법 |
US11173641B2 (en) | 2015-12-25 | 2021-11-16 | Panasonic Intellectual Property Management Co., Ltd. | Mold and method for manufacturing mold |
WO2018003882A1 (ja) | 2016-06-29 | 2018-01-04 | パナソニックIpマネジメント株式会社 | スプルブッシュ |
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US10953580B2 (en) | 2016-06-29 | 2021-03-23 | Panasonic Intellectual Property Management Co., Ltd. | Sprue-bush |
US11220032B2 (en) | 2016-06-29 | 2022-01-11 | Panasonic Intellectual Property Management Co., Ltd. | Sprue-bush and method for manufacturing sprue-bush |
Also Published As
Publication number | Publication date |
---|---|
JP5001289B2 (ja) | 2012-08-15 |
TWI410319B (zh) | 2013-10-01 |
KR20090091110A (ko) | 2009-08-26 |
TW200835588A (en) | 2008-09-01 |
JPWO2008038694A1 (ja) | 2010-01-28 |
CN101535026B (zh) | 2012-11-21 |
CN101535026A (zh) | 2009-09-16 |
KR101425691B1 (ko) | 2014-08-01 |
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