US20100310708A1 - Nozzle for an Injection Molding Apparatus - Google Patents

Nozzle for an Injection Molding Apparatus Download PDF

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Publication number
US20100310708A1
US20100310708A1 US12/859,402 US85940210A US2010310708A1 US 20100310708 A1 US20100310708 A1 US 20100310708A1 US 85940210 A US85940210 A US 85940210A US 2010310708 A1 US2010310708 A1 US 2010310708A1
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United States
Prior art keywords
tip
nozzle
melt
nozzle body
retainer
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Abandoned
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US12/859,402
Inventor
George Olaru
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Mold Masters 2007 Ltd
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Mold Masters 2007 Ltd
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Application filed by Mold Masters 2007 Ltd filed Critical Mold Masters 2007 Ltd
Priority to US12/859,402 priority Critical patent/US20100310708A1/en
Publication of US20100310708A1 publication Critical patent/US20100310708A1/en
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    • 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
    • B29C45/278—Nozzle tips
    • 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
    • B29C2045/2761—Seals between nozzle and mould or gate

Definitions

  • This invention relates to an injection molding machine, and more particularly to a nozzle tip for a nozzle in an injection molding machine.
  • a nozzle in hot runner injection molding machines to include a thermally conductive body and a thermally conductive tip. Furthermore, it is known for the nozzle to include a separate tip retainer that joins to the nozzle body and retains the tip in the nozzle body. The tip retainer is also typically used to seal between the nozzle and the mold cavity plate to which the nozzle transfers melt. Because the mold cavity plate is usually cooler than the tip, the tip retainer is typically made from a material that is less thermally conductive than the tip itself.
  • the invention is directed to a nozzle for an injection molding machine, comprising a nozzle body, a nozzle tip, a tip retainer, and a seal piece.
  • the nozzle body has a body melt passage therethrough.
  • the nozzle tip has a tip melt passage therethrough.
  • the tip is connected to the body so that the tip melt passage is in communication with and downstream from the body melt passage.
  • the tip is made from a thermally conductive and wear resistant material, such as for example Tungsten Carbide.
  • the tip retainer is for retaining the tip on the body.
  • the tip retainer is made from a thermally conductive material, such as for example Be—Cu (Beryllium-Copper), Beryllium-free Copper, TZM (Titanium/Zirconium carbide), Aluminum, Molybdenum or suitable Molybdenum alloys.
  • the seal piece is located adjacent the downstream end of the tip retainer for sealing against melt flow between the tip retainer and a mold cavity plate.
  • the seal piece is made from a relatively less thermally conductive material.
  • FIG. 1 is a sectional view of a portion of a nozzle in accordance with a first embodiment of the present invention
  • FIG. 2 is a sectional view of a portion of a nozzle in accordance with a second embodiment of the present invention
  • FIG. 3 is a sectional view of a portion of a nozzle in accordance with a third embodiment of the present invention
  • FIG. 4 is a sectional view of a portion of a nozzle in accordance with a fourth embodiment of the present invention.
  • FIG. 5 is a sectional view of a portion of a nozzle in accordance with a fifth embodiment of the present invention.
  • FIG. 1 shows a nozzle 10 , accordance with a first embodiment of the present invention.
  • Nozzle 10 is for transferring melt from a manifold in a hot runner injection molding machine to a mold cavity 11 in a mold cavity plate 12 .
  • Mold cavity cooling channels 13 may optionally be included in mold cavity plate 12 .
  • Nozzle 10 has a body 14 , a tip 16 , a nozzle tip retainer 18 and a nozzle seal piece 19 .
  • the body 14 includes a heater 22 .
  • Body 14 may also include a thermocouple 26 .
  • the body 14 has a melt passage 28 that passes therethrough.
  • the tip 16 may be removable from the body 14 , or alternatively may be fixed to body 14 .
  • the tip 16 has a melt passage 30 therethrough that communicates with the body melt passage 28 .
  • the melt passage 30 may exit from tip 16 into a chamber 32 that surrounds nozzle tip 16 .
  • the chamber 32 ends at a gate 34 , which opens into the mold cavity 11 .
  • Melt passes from a melt source, through one or more manifold runners, through the nozzle body melt passage 28 , through the tip melt passage 30 , through the chamber 32 , through the gate 34 and finally into mold cavity 11 .
  • the centre of the gate 34 defines an axis 36 , which is generally parallel to the direction of flow of melt through gate 34 , into the mold cavity 11 .
  • Exit 38 may be positioned off-centre from axis 36 , as shown, or alternatively exit 38 may be concentric with respect to axis 36 .
  • the tip may be used to heat the melt and is therefore preferably made from a thermally conductive material, so that heat from the heater 22 is transferred to the melt flowing through the melt passage 30 . Also, however, because of the melt flow through tip 16 , the tip 16 is exposed to a highly abrasive environment, and is therefore also preferably made from a wear resistant material. An example of such a material that meets both these criteria is Tungsten Carbide.
  • the applicant's patent U.S. Pat. No. 5,658,604 discloses the construction of a nozzle tip using Tungsten Carbide, and is hereby incorporated by reference.
  • the tip is preferably made from a material such as Tungsten Carbide, it can be relatively difficult to machine a thread on it for removably fastening it to the body 14 .
  • the tip retainer 18 holds the tip 16 in place in the nozzle body 14 .
  • the tip retainer 18 may be less wear resistant than the tip 16 because the tip retainer 18 does not have an internal melt passage. Accordingly, the tip retainer 18 may be made from a material which is relatively easily machined with threads 40 .
  • the tip retainer 18 may be separable from the tip 16 or may be integrally joined with the tip 16 .
  • the tip retainer 18 may, for example, include a threaded portion 40 for mating with a corresponding threaded portion on the nozzle body 14 , as shown.
  • the tip retainer 18 may include an internal thread to mate with an external thread on the nozzle body 14 .
  • Tip retainer 18 may also include a gripping portion 42 , which may be hexagonal for receiving a removal tool, for removing tip retainer 18 from nozzle body 14 .
  • the tip retainer 18 may alternatively be brazed to the tip 16 . This way, the tip 16 is more easily removable from the body 14 of the nozzle 10 , because the tip 16 is assured of being removed from the body 14 when the tip retainer 18 is removed.
  • the tip retainer 18 is at least in part, positioned between the melt passage 30 and the heater 22 along a significant portion of the length of the melt passage 30 .
  • the tip retainer 18 is preferably made from a thermally conductive material.
  • the tip retainer 18 is not necessarily made from a wear resistant material.
  • the tip retainer 18 may be made from such materials as Be—Cu (Beryllium-Copper), Beryllium-free Copper, TZM (Titanium/Zirconium carbide), Aluminum, Molybdenum or suitable Molybdenum alloys, H13, mold steel or AerMet 100TM.
  • tip retainer 18 has a sealing surface 44 , which is the surface that receives the nozzle seal piece 19 .
  • the nozzle seal piece 19 connects to the tip retainer 18 on the sealing surface 44 .
  • the nozzle seal piece 19 seals between the tip retainer 18 and the mold cavity plate 12 , to inhibit melt leakage out from chamber 32 , and may also serve to align the nozzle 10 in the bore 52 of the mold cavity plate 12 .
  • the nozzle seal piece 19 has an outer sealing surface 50 that provides a seal with the bore 52 of the mold cavity plate 12 .
  • This seal may be any suitable kind of seal, such as a mechanical seal.
  • Outer surface 50 may optionally also serve as an alignment means for aligning nozzle 10 into the bore 52 of the mold cavity plate 12 .
  • the nozzle seal piece 19 is not positioned between the melt passage 30 and the heater 22 , but is rather positioned between the melt passage and the mold cavity plate 12 , which is typically cooler than the nozzle tip 16 .
  • the nozzle seal piece 19 is preferably made from a material that is comparatively less thermally conductive than the material of the nozzle tip 16 , and that is generally equal to or less thermally conductive than the material of the tip retainer 18 .
  • the nozzle seal piece 19 may be made from titanium, H13, stainless steel, mold steel or chrome steel. As another alternative, it may be made from ceramic.
  • Other suitable materials for the seal piece 19 are disclosed in U.S. Pat. No. 5,879,727 (Puri), which is hereby incorporated by reference. Puri discloses such materials for use as an insulative layer for a nozzle.
  • the seal piece 19 may be a separate piece that is mechanically joined to tip retainer 18 by a suitable joint, such as an interference fit, as shown.
  • the seal piece 19 may be made by spraying a coating onto the tip retainer 18 , and then machining the coating down as required, to a suitable dimension for mating and sealing appropriately with mold cavity plate 12 .
  • U.S. Pat. No. 5,569,475 (Adas et al.) discloses the method of spraying on an insulating layer onto a portion of a nozzle, and is hereby incorporated by reference.
  • FIG. 2 shows a nozzle 100 in accordance with a second embodiment of the present invention that includes a tip 102 .
  • Tip 102 differs from tip 16 in that tip 102 has a melt passage 104 with an exit 106 that is concentric about the axis 36 of the gate 34 .
  • a nozzle in accordance with the present invention may have a tip that inserts into the gate 34 and has an off-centre melt passage exit, or alternatively has a tip that has a concentric melt passage exit.
  • FIG. 3 shows a nozzle 200 in accordance with a third embodiment of the present invention.
  • Nozzle 200 is similar to nozzle 100 , but includes a two-piece tip 202 , instead of tip 102 .
  • Tip 202 includes an inner piece 204 and an outer piece 206 .
  • the inner piece 204 contains the melt passage 102 therethrough
  • Inner piece 204 may be made from a wear resistant material, and from a thermally conductive material.
  • inner piece 204 may be made from a material such as Tungsten Carbide.
  • Outer piece 206 may be made from thermally conductive material, but is not required to be made from a material that is as wear resistant as the inner piece 206 .
  • the outer piece 206 may be made from a material, such as Be—Cu (Beryllium-Copper), or Beryllium-free Copper or TZM (Titanium/Zirconium carbide).
  • the nozzle 200 also includes body 14 , retainer 18 and seal piece 19 .
  • FIG. 4 shows a nozzle 300 in accordance with a fourth embodiment of the present invention.
  • Nozzle 300 is similar to nozzle 10 , except that nozzle 300 is configured to receive a thermocouple 302 , within the nozzle tip 304 , to get a more accurate temperature for the melt flowing therethrough.
  • Nozzle tip 302 includes an aperture 306 for receiving the sensing portion 308 of thermocouple 302 .
  • Aperture 306 may be, for example, a hole sized to snugly receive thermocouple 302 , to facilitate heat conduction from the tip 302 to the sensing portion 308 .
  • Nozzle retainer 310 includes pass-through 312 , which may be, for example, a slotted hole, to permit the passage of the thermocouple 302 into the aperture 306 .
  • Nozzle 300 includes seal piece 19 which mounts to retainer 310 in the same way it mounts to retainer 18 .
  • FIG. 5 shows a nozzle 400 in accordance with a fifth embodiment of the present invention.
  • Nozzle 400 is similar to nozzle 10 , except that nozzle 400 includes a tip 402 that is wear resistant, particularly at the end 404 .
  • End 404 is subject to increased wear from the melt flow for several reasons.
  • the available cross-sectional area through which the melt can flow i.e., the gate area minus the area of end 404 ) is relatively small and as a result the melt flow velocity through the gate area is relatively high.
  • the higher melt flow velocity increases the wear on the end 404 .
  • the end 404 has a relatively high surface-to-volume ratio, relative to other portions of the tip 402 that are exposed to the melt flow, and is therefore, particularly susceptible to wear from the melt flow.
  • Tip 402 includes an end 404 that is mode from a wear resistant and thermally conductive material, such as tungsten carbide.
  • the rest of the tip 402 may be made from a less wear resistant material, thermally conductive, such as Be—Cu.
  • Retainer 18 and seal piece 19 cooperate with tip 402 in a manner similar to how they cooperate with tip 16 .

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

A nozzle for an injection molding apparatus is provided. The injection molding apparatus has a mold component that defines a mold cavity and a gate into the mold cavity. The nozzle includes a nozzle body, a heater, a tip, a tip retainer, and a nozzle seal piece. The nozzle body defines a nozzle body melt passage therethrough that is adapted to receive melt from a melt source. The heater is thermally connected to the nozzle body for heating melt in the nozzle body. The tip defines a tip melt passage therethrough that is downstream from the nozzle body melt passage, and that is adapted to be upstream from the gate. The tip retainer is removably connected with respect to the nozzle body. The nozzle seal piece is connected with respect to the nozzle body. The material of nozzle seal piece has a thermal conductivity that is less than at least one of the thermal conductivity of the material of the tip and the thermal conductivity of the material of the tip retainer.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation of U.S. patent application Ser. No. 12/562,416 filed Sep. 18, 2009 entitled “Nozzle for an Injection Molding Apparatus,” which is a continuation of U.S. patent application Ser. No. 10/925,211 filed Aug. 25, 2004, entitled “Injection Molding Nozzle,” which is a continuation of U.S. patent application Ser. No. 10/262,982, now U.S. Pat. No. 6,921,257, filed Oct. 3, 2002, entitled “Tip Assembly Having at Least Three Components for Hot Runner Nozzle,” which claims the benefit under 35 U.S.C. §119(e) to U.S. Provisional Application No. 60/356,170, filed Feb. 14, 2002, and U.S. Provisional Application No. 60/346,632, filed Jan. 10, 2002, and U.S. Provisional Application No. 60/330,540, filed Oct. 24, 2001, which are all incorporated by reference herein in their entireties.
    • FIELD OF THE INVENTION
  • This invention relates to an injection molding machine, and more particularly to a nozzle tip for a nozzle in an injection molding machine.
    • BACKGROUND OF THE INVENTION
  • It is known for a nozzle in hot runner injection molding machines to include a thermally conductive body and a thermally conductive tip. Furthermore, it is known for the nozzle to include a separate tip retainer that joins to the nozzle body and retains the tip in the nozzle body. The tip retainer is also typically used to seal between the nozzle and the mold cavity plate to which the nozzle transfers melt. Because the mold cavity plate is usually cooler than the tip, the tip retainer is typically made from a material that is less thermally conductive than the tip itself.
  • An example of such a nozzle construction is shown in U.S. Pat. No. 5,299,928 (Gellert). By making the tip retainer out of a less thermally conductive material than that of the tip itself, the efficiency of the nozzle to transfer heat from the heater to the melt is reduced, sometimes significantly.
  • Thus a need exists for new nozzle constructions that have high heat transfer efficiency.
    • SUMMARY OF THE INVENTION
  • In a first aspect the invention is directed to a nozzle for an injection molding machine, comprising a nozzle body, a nozzle tip, a tip retainer, and a seal piece. The nozzle body has a body melt passage therethrough. The nozzle tip has a tip melt passage therethrough. The tip is connected to the body so that the tip melt passage is in communication with and downstream from the body melt passage. The tip is made from a thermally conductive and wear resistant material, such as for example Tungsten Carbide. The tip retainer is for retaining the tip on the body. The tip retainer is made from a thermally conductive material, such as for example Be—Cu (Beryllium-Copper), Beryllium-free Copper, TZM (Titanium/Zirconium carbide), Aluminum, Molybdenum or suitable Molybdenum alloys. The seal piece is located adjacent the downstream end of the tip retainer for sealing against melt flow between the tip retainer and a mold cavity plate. The seal piece is made from a relatively less thermally conductive material.
    • DESCRIPTION OF THE DRAWINGS
  • For a better understanding of the present invention and to show more clearly how it may be carried into effect, reference will now be made by way of example to the accompanying drawings, showing articles made according to a preferred embodiment of the present invention, in which;
  • FIG. 1 is a sectional view of a portion of a nozzle in accordance with a first embodiment of the present invention;
  • FIG. 2 is a sectional view of a portion of a nozzle in accordance with a second embodiment of the present invention;
  • FIG. 3 is a sectional view of a portion of a nozzle in accordance with a third embodiment of the present invention
  • FIG. 4 is a sectional view of a portion of a nozzle in accordance with a fourth embodiment of the present invention; and
  • FIG. 5 is a sectional view of a portion of a nozzle in accordance with a fifth embodiment of the present invention.
    •  DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Reference is made to FIG. 1, which shows a nozzle 10, accordance with a first embodiment of the present invention. Nozzle 10 is for transferring melt from a manifold in a hot runner injection molding machine to a mold cavity 11 in a mold cavity plate 12. Mold cavity cooling channels 13 may optionally be included in mold cavity plate 12. Nozzle 10 has a body 14, a tip 16, a nozzle tip retainer 18 and a nozzle seal piece 19. The body 14 includes a heater 22. Body 14 may also include a thermocouple 26. The body 14 has a melt passage 28 that passes therethrough.
  • The tip 16 may be removable from the body 14, or alternatively may be fixed to body 14. The tip 16 has a melt passage 30 therethrough that communicates with the body melt passage 28. The melt passage 30 may exit from tip 16 into a chamber 32 that surrounds nozzle tip 16. The chamber 32 ends at a gate 34, which opens into the mold cavity 11.
  • Melt passes from a melt source, through one or more manifold runners, through the nozzle body melt passage 28, through the tip melt passage 30, through the chamber 32, through the gate 34 and finally into mold cavity 11.
  • The centre of the gate 34 defines an axis 36, which is generally parallel to the direction of flow of melt through gate 34, into the mold cavity 11.
  • The exit from the tip melt passage into the chamber 32 is shown at 38. Exit 38 may be positioned off-centre from axis 36, as shown, or alternatively exit 38 may be concentric with respect to axis 36.
  • Because the melt flows through tip 16, the tip may be used to heat the melt and is therefore preferably made from a thermally conductive material, so that heat from the heater 22 is transferred to the melt flowing through the melt passage 30. Also, however, because of the melt flow through tip 16, the tip 16 is exposed to a highly abrasive environment, and is therefore also preferably made from a wear resistant material. An example of such a material that meets both these criteria is Tungsten Carbide. The applicant's patent U.S. Pat. No. 5,658,604 (Gellert et al.) discloses the construction of a nozzle tip using Tungsten Carbide, and is hereby incorporated by reference.
  • Because the tip is preferably made from a material such as Tungsten Carbide, it can be relatively difficult to machine a thread on it for removably fastening it to the body 14.
  • The tip retainer 18 holds the tip 16 in place in the nozzle body 14. The tip retainer 18 may be less wear resistant than the tip 16 because the tip retainer 18 does not have an internal melt passage. Accordingly, the tip retainer 18 may be made from a material which is relatively easily machined with threads 40.
  • The tip retainer 18 may be separable from the tip 16 or may be integrally joined with the tip 16. The tip retainer 18 may, for example, include a threaded portion 40 for mating with a corresponding threaded portion on the nozzle body 14, as shown. Alternatively the tip retainer 18 may include an internal thread to mate with an external thread on the nozzle body 14. Tip retainer 18 may also include a gripping portion 42, which may be hexagonal for receiving a removal tool, for removing tip retainer 18 from nozzle body 14.
  • The tip retainer 18 may alternatively be brazed to the tip 16. This way, the tip 16 is more easily removable from the body 14 of the nozzle 10, because the tip 16 is assured of being removed from the body 14 when the tip retainer 18 is removed.
  • The tip retainer 18 is at least in part, positioned between the melt passage 30 and the heater 22 along a significant portion of the length of the melt passage 30. Thus the tip retainer 18 is preferably made from a thermally conductive material. However, as explained above, the tip retainer 18 is not necessarily made from a wear resistant material. The tip retainer 18 may be made from such materials as Be—Cu (Beryllium-Copper), Beryllium-free Copper, TZM (Titanium/Zirconium carbide), Aluminum, Molybdenum or suitable Molybdenum alloys, H13, mold steel or AerMet 100™.
  • A portion of the tip retainer 18 is exposed to the melt. As a result, tip retainer 18 has a sealing surface 44, which is the surface that receives the nozzle seal piece 19.
  • The nozzle seal piece 19 connects to the tip retainer 18 on the sealing surface 44. The nozzle seal piece 19 seals between the tip retainer 18 and the mold cavity plate 12, to inhibit melt leakage out from chamber 32, and may also serve to align the nozzle 10 in the bore 52 of the mold cavity plate 12. The nozzle seal piece 19 has an outer sealing surface 50 that provides a seal with the bore 52 of the mold cavity plate 12. This seal may be any suitable kind of seal, such as a mechanical seal. Outer surface 50 may optionally also serve as an alignment means for aligning nozzle 10 into the bore 52 of the mold cavity plate 12. The nozzle seal piece 19 is not positioned between the melt passage 30 and the heater 22, but is rather positioned between the melt passage and the mold cavity plate 12, which is typically cooler than the nozzle tip 16. Thus, the nozzle seal piece 19 is preferably made from a material that is comparatively less thermally conductive than the material of the nozzle tip 16, and that is generally equal to or less thermally conductive than the material of the tip retainer 18. For example, the nozzle seal piece 19 may be made from titanium, H13, stainless steel, mold steel or chrome steel. As another alternative, it may be made from ceramic. Other suitable materials for the seal piece 19 are disclosed in U.S. Pat. No. 5,879,727 (Puri), which is hereby incorporated by reference. Puri discloses such materials for use as an insulative layer for a nozzle.
  • The seal piece 19 may be a separate piece that is mechanically joined to tip retainer 18 by a suitable joint, such as an interference fit, as shown. Alternatively, the seal piece 19 may be made by spraying a coating onto the tip retainer 18, and then machining the coating down as required, to a suitable dimension for mating and sealing appropriately with mold cavity plate 12. U.S. Pat. No. 5,569,475 (Adas et al.) discloses the method of spraying on an insulating layer onto a portion of a nozzle, and is hereby incorporated by reference.
  • Reference is made to FIG. 2, which shows a nozzle 100 in accordance with a second embodiment of the present invention that includes a tip 102. Tip 102 differs from tip 16 in that tip 102 has a melt passage 104 with an exit 106 that is concentric about the axis 36 of the gate 34.
  • Thus, a nozzle in accordance with the present invention may have a tip that inserts into the gate 34 and has an off-centre melt passage exit, or alternatively has a tip that has a concentric melt passage exit.
  • Reference is made to FIG. 3, which shows a nozzle 200 in accordance with a third embodiment of the present invention. Nozzle 200 is similar to nozzle 100, but includes a two-piece tip 202, instead of tip 102. Tip 202 includes an inner piece 204 and an outer piece 206. The inner piece 204 contains the melt passage 102 therethrough Inner piece 204 may be made from a wear resistant material, and from a thermally conductive material. For example, inner piece 204 may be made from a material such as Tungsten Carbide. Outer piece 206 may be made from thermally conductive material, but is not required to be made from a material that is as wear resistant as the inner piece 206. For example, the outer piece 206 may be made from a material, such as Be—Cu (Beryllium-Copper), or Beryllium-free Copper or TZM (Titanium/Zirconium carbide). The nozzle 200 also includes body 14, retainer 18 and seal piece 19.
  • Reference is made to FIG. 4, which shows a nozzle 300 in accordance with a fourth embodiment of the present invention. Nozzle 300 is similar to nozzle 10, except that nozzle 300 is configured to receive a thermocouple 302, within the nozzle tip 304, to get a more accurate temperature for the melt flowing therethrough. Nozzle tip 302 includes an aperture 306 for receiving the sensing portion 308 of thermocouple 302. Aperture 306 may be, for example, a hole sized to snugly receive thermocouple 302, to facilitate heat conduction from the tip 302 to the sensing portion 308. Nozzle retainer 310 includes pass-through 312, which may be, for example, a slotted hole, to permit the passage of the thermocouple 302 into the aperture 306.
  • Nozzle 300 includes seal piece 19 which mounts to retainer 310 in the same way it mounts to retainer 18.
  • Reference is made to FIG. 5, which shows a nozzle 400 in accordance with a fifth embodiment of the present invention. Nozzle 400 is similar to nozzle 10, except that nozzle 400 includes a tip 402 that is wear resistant, particularly at the end 404. End 404 is subject to increased wear from the melt flow for several reasons. The available cross-sectional area through which the melt can flow (i.e., the gate area minus the area of end 404) is relatively small and as a result the melt flow velocity through the gate area is relatively high. The higher melt flow velocity increases the wear on the end 404. Furthermore, the end 404 has a relatively high surface-to-volume ratio, relative to other portions of the tip 402 that are exposed to the melt flow, and is therefore, particularly susceptible to wear from the melt flow.
  • Tip 402 includes an end 404 that is mode from a wear resistant and thermally conductive material, such as tungsten carbide. The rest of the tip 402 may be made from a less wear resistant material, thermally conductive, such as Be—Cu. By making the tip 402 with the compound construction described above, it is wear resistant in the place where it is needed most, and may be less wear resistant where it is needed less.
  • Retainer 18 and seal piece 19 cooperate with tip 402 in a manner similar to how they cooperate with tip 16.
  • While the above description constitutes the preferred embodiments, it will be appreciated that the present invention is susceptible to modification and change without departing from the fair meaning of the accompanying claims.

Claims (1)

1. A nozzle for an injection molding apparatus, the injection molding apparatus having a mold component defining a mold gate and a mold cavity communicating with the mold gate, the nozzle comprising:
a nozzle body, the nozzle body defining a nozzle body melt passage therethrough, wherein the nozzle body melt passage is downstream from and in fluid communication with a melt source, and the nozzle body melt passage is upstream from and in fluid communication with the mold gate into the mold cavity;
a tip defining a tip melt passage therethrough, wherein the tip melt passage is downstream from and in fluid communication with the nozzle body melt passage, and the tip melt passage is adapted to be upstream from and in fluid communication with the mold gate;
a tip retainer that is connected to the nozzle body;
wherein the tip is made from a material which is more wear resistant then the tip retainer; and
a nozzle seal piece located between the mold component and the tip retainer, wherein the material of the nozzle seal piece has a thermal conductivity that is less than the thermal conductivity of the material of the tip retainer.
US12/859,402 2001-10-03 2010-08-19 Nozzle for an Injection Molding Apparatus Abandoned US20100310708A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/859,402 US20100310708A1 (en) 2001-10-03 2010-08-19 Nozzle for an Injection Molding Apparatus

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
CA2358148 2001-10-03
CA002358148A CA2358148A1 (en) 2001-10-03 2001-10-03 A nozzle
US33054001P 2001-10-24 2001-10-24
US34663202P 2002-01-10 2002-01-10
US35617002P 2002-02-14 2002-02-14
US10/262,982 US6921257B2 (en) 2001-10-03 2002-10-03 Tip assembly having at least three components for hot runner nozzle
US10/925,211 US7891969B2 (en) 2001-10-03 2004-08-25 Injection molding nozzle
US12/562,416 US7780434B2 (en) 2001-10-03 2009-09-18 Nozzle for an injection molding apparatus
US12/859,402 US20100310708A1 (en) 2001-10-03 2010-08-19 Nozzle for an Injection Molding Apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US12/562,416 Continuation US7780434B2 (en) 2001-10-03 2009-09-18 Nozzle for an injection molding apparatus

Publications (1)

Publication Number Publication Date
US20100310708A1 true US20100310708A1 (en) 2010-12-09

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Family Applications (6)

Application Number Title Priority Date Filing Date
US10/262,982 Expired - Lifetime US6921257B2 (en) 2001-10-03 2002-10-03 Tip assembly having at least three components for hot runner nozzle
US10/899,033 Expired - Lifetime US6971869B2 (en) 2001-10-03 2004-07-27 Injection molding nozzle
US10/925,211 Expired - Fee Related US7891969B2 (en) 2001-10-03 2004-08-25 Injection molding nozzle
US11/135,525 Expired - Lifetime US7108503B2 (en) 2001-10-03 2005-05-24 Injection molding nozzle
US12/562,416 Expired - Lifetime US7780434B2 (en) 2001-10-03 2009-09-18 Nozzle for an injection molding apparatus
US12/859,402 Abandoned US20100310708A1 (en) 2001-10-03 2010-08-19 Nozzle for an Injection Molding Apparatus

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US10/262,982 Expired - Lifetime US6921257B2 (en) 2001-10-03 2002-10-03 Tip assembly having at least three components for hot runner nozzle
US10/899,033 Expired - Lifetime US6971869B2 (en) 2001-10-03 2004-07-27 Injection molding nozzle
US10/925,211 Expired - Fee Related US7891969B2 (en) 2001-10-03 2004-08-25 Injection molding nozzle
US11/135,525 Expired - Lifetime US7108503B2 (en) 2001-10-03 2005-05-24 Injection molding nozzle
US12/562,416 Expired - Lifetime US7780434B2 (en) 2001-10-03 2009-09-18 Nozzle for an injection molding apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104369318A (en) * 2014-11-10 2015-02-25 苏州洛世奇热流道科技有限公司 Straight valve needle sprue hot runner spray nozzle

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6769901B2 (en) * 2000-04-12 2004-08-03 Mold-Masters Limited Injection nozzle system for an injection molding machine
CA2358187A1 (en) * 2001-10-03 2003-04-03 Mold-Masters Limited Nozzle seal
CA2358148A1 (en) 2001-10-03 2003-04-03 Mold-Masters Limited A nozzle
US6962492B2 (en) * 2001-10-05 2005-11-08 Mold-Masters Limited Gap seal between nozzle components
US7128566B2 (en) * 2002-02-21 2006-10-31 Mold-Masters Limited Valve pin guiding tip for a nozzle
WO2004012923A2 (en) * 2002-07-30 2004-02-12 Mold-Masters Limited A valve pin guide and alignment system for a hot-runner in an injection molding apparatus
US7137807B2 (en) * 2002-11-21 2006-11-21 Mold-Masters Limited Hot runner nozzle with a tip, a tip surrounding piece and an alignment piece
CA2452112A1 (en) * 2002-12-09 2004-06-09 Mold-Masters Limited Nozzle tip and seal
US7131832B2 (en) * 2003-05-08 2006-11-07 Mold-Masters Limited Transfer seal for a removable nozzle tip of an injection molding apparatus
US7143496B2 (en) 2003-05-08 2006-12-05 Mold-Masters Limited Hot runner nozzle with removable tip and tip retainer
US7134868B2 (en) * 2003-11-26 2006-11-14 Mold-Masters Limited Injection molding nozzle with wear-resistant tip having diamond-type coating
US7160100B2 (en) 2004-01-06 2007-01-09 Mold-Masters Limited Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem
US20050212770A1 (en) * 2004-03-24 2005-09-29 Rung-Tsung Lin Wireless mouse device free of battery
CA2482254A1 (en) * 2004-04-07 2005-10-07 Mold-Masters Limited Modular injection nozzle having a thermal barrier
EP1602466B1 (en) * 2004-06-02 2009-11-04 Mold-Masters (2007) Limited Valve-gated injection molding nozzle having an annular flow
US7544056B2 (en) 2004-06-02 2009-06-09 Mold-Masters (2007) Limited Valve-gated injection molding nozzle having an annular flow
US7344372B2 (en) 2004-06-02 2008-03-18 Mold-Masters (2007) Limited Injection molding nozzle having an annular flow tip
US7708550B2 (en) * 2004-06-29 2010-05-04 Konica Minolta Opto, Inc. Cold runner injection mold having an insulated gate
JP2006056629A (en) * 2004-08-18 2006-03-02 Daido Kogyo Co Ltd Resin pin chip for pin chain, and method of manufacturing the same
JP2006130900A (en) * 2004-10-04 2006-05-25 Fanuc Ltd Injection device of injection molding machine
CA2523900A1 (en) * 2004-10-19 2006-04-19 Mold-Masters Limited Injection molding nozzle with rounded tip
US20060159799A1 (en) * 2005-01-14 2006-07-20 Panos Trakas Nozzle seal with gating needle for injection molding nozzle
US7232305B2 (en) * 2005-05-20 2007-06-19 Husky Injection Molding Systems, Ltd. Load management device for a feed body of a molding machine
US7370417B2 (en) * 2005-12-09 2008-05-13 Mold-Masters (2007) Limited Method of installing a mold gate insert in an injection molding apparatus
US7361010B2 (en) * 2006-01-26 2008-04-22 D-M-E Company Apparatus for injection molding
US20100015274A1 (en) * 2006-04-24 2010-01-21 Volastic Limited Injection moulding nozzle and tip therefor
US7467940B2 (en) * 2006-10-20 2008-12-23 Husky Injection Molding Systems Ltd. System and Method for Joining Non-Compatible Components
US8087924B2 (en) * 2007-01-31 2012-01-03 Husky Injection Molding Systems Ltd. Injection molding nozzle having a tip retainer movable relative to a nozzle housing
US20080206391A1 (en) * 2007-02-27 2008-08-28 Husky Injection Molding Systems Ltd. Injection Molding Nozzle Assembly with Composite Nozzle Tip
US7780433B2 (en) * 2007-03-27 2010-08-24 Mold-Masters (2007) Limited Hot runner nozzle having thermal insert at downstream end
US7513772B2 (en) * 2007-05-09 2009-04-07 Mold-Masters (2007) Limited Injection molding nozzle with valve pin alignment
JPWO2008152872A1 (en) * 2007-06-14 2010-08-26 コニカミノルタオプト株式会社 Injection nozzle and molding machine
DE102007029954A1 (en) * 2007-06-28 2009-01-02 Sfr Formenbau Gmbh Arrangement of an injection nozzle for guiding melt mass in a plastic injection mold od. Like.
CN101873917A (en) * 2007-09-21 2010-10-27 马斯特模具（2007）有限公司 Injection molding nozzle having a nozzle tip with diamond crown
US7618253B2 (en) * 2007-10-19 2009-11-17 Mold-Masters (2007) Limited Multiple-gate injection molding apparatus
US20090148550A1 (en) * 2007-12-06 2009-06-11 Husky Injection Molding Systems Ltd. Hot-Runner Nozzle Assembly Configured to Reduce Stress Between Copper Body and Reinforcement Body
EP2225082A4 (en) * 2007-12-21 2013-04-17 Mold Masters 2007 Ltd Method of manufacturing hot-runner component and hot-runner components thereof
US20090188894A1 (en) * 2008-01-28 2009-07-30 Honeywell International Inc. Welding guide nozzle including nozzle tip for precision weld wire positioning
JP4737295B2 (en) * 2009-01-19 2011-07-27 マツダ株式会社 Molding method and molding apparatus for foamed resin molded product
FR2948057A1 (en) * 2009-07-16 2011-01-21 Airbus Operations Sas IMPROVED INTERFACE DEVICE FOR INJECTION
CN101758603B (en) * 2009-08-27 2012-10-17 东莞市热恒注塑科技有限公司 Corner type hot nozzle of hot runner system for large injection mold
CN102285072A (en) * 2011-06-09 2011-12-21 厦门博诺热流道科技有限公司 Hot rubber spout structure
US9162384B2 (en) 2013-03-22 2015-10-20 Otto Männer Innovation GmbH Injection nozzle with multi-piece tip portion
JP6346574B2 (en) * 2014-03-03 2018-06-20 イングラス ソシエタ ペル アチオニＩＮＧＬＡＳＳ Ｓ．ｐ．Ａ． Injector nozzle terminal of plastic material injection molding equipment
KR101574420B1 (en) * 2014-04-01 2015-12-03 허남욱 Nozzle device of hot runner injection mold
ITUB20153137A1 (en) 2015-08-14 2017-02-14 Inglass Spa NOZZLE TERMINAL FOR PLASTIC INJECTION MOLDING INJECTORS OF PLASTIC MATERIALS
KR101875104B1 (en) * 2015-10-05 2018-07-05 주식회사 유도 Heat pipe nozzle system for injection molding
DE102016203995A1 (en) 2016-03-10 2017-09-14 Otto Männer Innovation GmbH Hot runner system and associated nozzle heaters
US11084195B2 (en) 2016-05-27 2021-08-10 Husky Injection Molding Systems Ltd. Mold gate structures
US10131079B2 (en) * 2016-07-27 2018-11-20 Douglas Christopher Hepler Side gate nozzle assembly with a washer made of a shape memory alloy
DE102017107443A1 (en) * 2017-04-06 2018-10-11 Günther Heisskanaltechnik Gmbh Insert for use in an injection molding nozzle and injection molding nozzle with such an insert
CN107718448A (en) * 2017-10-20 2018-02-23 珠海格力精密模具有限公司 Nozzle core, hot nozzle and hot runner system
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CN110883324A (en) * 2018-09-11 2020-03-17 昆山华复精密金属有限公司 Nozzle structure
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CN109676870A (en) * 2019-01-10 2019-04-26 贝普医疗科技有限公司 A kind of hot mouth structure of hot runner mould
CN110919988A (en) * 2019-12-30 2020-03-27 金华市利盛塑模有限公司 Hot runner nozzle assembly
DE102020105964A1 (en) 2020-03-05 2021-09-09 Bayerische Motoren Werke Aktiengesellschaft Nozzle and method for manufacturing a component

Citations (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488810A (en) * 1967-03-17 1970-01-13 Jobst U Gellert Valve-gated mold construction
US3677682A (en) * 1970-03-09 1972-07-18 Ladislao Wladyslaw Putkowski Hot runner system
US3716318A (en) * 1971-02-04 1973-02-13 Gte Sylvania Inc Valving means for injection molding apparatus
US3741704A (en) * 1969-12-11 1973-06-26 Lucas Industries Ltd Apparatus for hot runner injection moulding
US3952927A (en) * 1974-04-26 1976-04-27 Standard Oil Company Injection nozzle having guides for nozzle rod
US4004871A (en) * 1973-03-12 1977-01-25 Claude Hardy Mold gate apparatus
US4010903A (en) * 1974-06-27 1977-03-08 Torazo Saito Nozzle for injection molding of thermoplastics
US4013393A (en) * 1975-04-10 1977-03-22 Gellert Jobst U Valve-gated injection molding mechanism
US4043740A (en) * 1976-03-25 1977-08-23 Gellert Jobst U Injection molding nozzle seal
US4212627A (en) * 1978-12-08 1980-07-15 Gellert Jobst U Injection molding valve pin actuator mechanism
US4268240A (en) * 1978-01-06 1981-05-19 Husky Injection Molding Systems Actuating mechanism for gate valve of injection nozzle
US4268241A (en) * 1978-01-06 1981-05-19 Husky Injection Molding Systems Heated injection nozzle
US4279588A (en) * 1980-07-15 1981-07-21 Gellert Jobst U Hot tip seal
US4312630A (en) * 1980-03-18 1982-01-26 Nicola Travaglini Heaterless hot nozzle
US4318686A (en) * 1980-01-03 1982-03-09 International Tools (1973) Limited Injection molding apparatus for molding parts of thermosetting plastic material
US4330258A (en) * 1980-10-15 1982-05-18 Gellert Jobst U Injection molding mechanical double acting valve pin actuator
US4368028A (en) * 1981-02-02 1983-01-11 Grish Anthony J Annular flow plastic extrusion nozzle or gate
US4450999A (en) * 1982-07-12 1984-05-29 Gellert Jobst U Injection molding hot tip seal
US4517453A (en) * 1983-02-02 1985-05-14 Shigeru Tsutsumi Hot tip bushing means for a synthetic resin injection molding machine
US4652230A (en) * 1985-05-06 1987-03-24 Osuna Diaz J M Injection molding nozzle
US4662837A (en) * 1985-03-18 1987-05-05 Husky Injection Molding Systems, Ltd. Apparatus for injection molding
US4663811A (en) * 1985-12-02 1987-05-12 Gellert Jobst U Manufacturing method for selected gate configuration injection molding nozzles
US4768028A (en) * 1985-03-29 1988-08-30 Ferranti Plc Display control apparatus having a cursor
US4832593A (en) * 1988-01-25 1989-05-23 Husky Injection Molding Systems Ltd. Large nozzle for hot runner mold
US4902218A (en) * 1987-12-24 1990-02-20 Societe A Responsabilite Limitee Dite: Delta Projet Nozzle for plastic injection mould
US4911636A (en) * 1988-09-30 1990-03-27 Gellert Jobst U Injection molding nozzle having nose portion with heating element encircling the bore
US4925384A (en) * 1988-12-21 1990-05-15 Maenner Otto Apparatus for admitting hardenable material into the dies of molding machines
US4945630A (en) * 1990-01-19 1990-08-07 Gellert Jobst U Method of making a selected size injection molding nozzle
US4950154A (en) * 1989-07-03 1990-08-21 Moberg Clifford A Combination injection mold and sprue bushing
US4981431A (en) * 1989-07-13 1991-01-01 Mold-Masters Limited Injection molding system with flanged insulating gate seal
US5015170A (en) * 1990-07-27 1991-05-14 Gellert Jobst U Injection molding cooled socket holder for a heated nozzle
US5028227A (en) * 1988-10-31 1991-07-02 Mold-Masters Limited Injection molding nozzle with replaceable gate insert
US5030084A (en) * 1990-09-04 1991-07-09 Mold-Masters Limited Pre-wired injection molding assembly
US5135377A (en) * 1990-10-12 1992-08-04 Gellert Jobst U Injection molding nozzle for an injection molding system
US5208052A (en) * 1991-11-18 1993-05-04 Husky Injection Molding Systems Ltd. Hot runner nozzle assembly
US5208228A (en) * 1989-11-13 1993-05-04 Merck & Co., Inc. Aminomacrolides and derivatives having immunosuppressive activity
US5209107A (en) * 1991-04-04 1993-05-11 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
US5299928A (en) * 1993-07-26 1994-04-05 Gellert Jobst U Two-piece injection molding nozzle seal
US5324191A (en) * 1992-09-30 1994-06-28 Husky Injection Molding Systems Ltd. Sealed edge gate
US5421716A (en) * 1994-05-11 1995-06-06 Gellert; Jobst U. Injection molding nozzle with two removable inserts
US5492467A (en) * 1993-12-30 1996-02-20 Kona Corporation Apparatus for injection molding articles of amorphous polyethylene terephthalate
US5504594A (en) * 1991-11-20 1996-04-02 Dai Nippon Printing Co., Ltd. Hologram, article including hologram, and hologram recording and reconstructing methods
US5505613A (en) * 1993-08-13 1996-04-09 Apparate-Und Werkzeugbau Ag Injection molding nozzle having a centering bushing
US5518393A (en) * 1992-09-30 1996-05-21 Husky Injection Molding Systems Ltd. Hot runner manifold bushing
US5652003A (en) * 1995-07-28 1997-07-29 Gellert; Jobst Ulrich Injection molding nozzle with radial vanes
US5707667A (en) * 1995-12-07 1998-01-13 Husky Injection Molding Systems Ltd. Sound insulated injection molding machine
US5736171A (en) * 1996-06-04 1998-04-07 Caco Pacific Corporation Fluid injecting nozzle having spaced projections
US5871786A (en) * 1997-04-04 1999-02-16 Kona Corporation Tip heated hot runner nozzle
US5871785A (en) * 1996-05-10 1999-02-16 Eurotool Beheer B.V. Injection moulding system and heating element for use in such a system
US5879727A (en) * 1997-01-21 1999-03-09 Husky Injection Molding Systems, Ltd. Insulated modular injection nozzle system
US5885628A (en) * 1993-08-12 1999-03-23 Dynisco, Inc. Injection molding nozzle
US5894025A (en) * 1997-06-13 1999-04-13 Kona Corporation Valve pin actuator
US5895669A (en) * 1997-06-13 1999-04-20 Incoe Corporation Injection molding shut-off bushing with separate material flow path
US5925386A (en) * 1997-06-11 1999-07-20 Moberg; Clifford A. Wear-resistant sprue bushing
US6009616A (en) * 1998-10-16 2000-01-04 Gellert; Jobst Ulrich Method of making an injection molding nozzle with tip insert
US6017209A (en) * 1998-02-02 2000-01-25 Mold-Masters Limited Injection molding cooled gate insert
US6022210A (en) * 1995-01-31 2000-02-08 Gunther Heisskanaltechnik Gmbh Hot runner nozzle
US6030202A (en) * 1998-02-02 2000-02-29 Mold-Masters Limited Injection molding three portion gate and cavity insert
US6036467A (en) * 1994-06-23 2000-03-14 Kimberly-Clark Worldwide, Inc. Apparatus for ultrasonically assisted melt extrusion of fibers
US6050806A (en) * 1998-02-26 2000-04-18 Yudo Co., Ltd. Injection nozzle with cushion ring
US6074195A (en) * 1998-12-08 2000-06-13 Fast Heat, Inc. Hot runner nozzle with laminar flow pin point tip
US6089468A (en) * 1999-11-08 2000-07-18 Husky Injection Molding Systems Ltd. Nozzle tip with weld line eliminator
US6220851B1 (en) * 1999-04-19 2001-04-24 Husky Injection Molding Systems Ltd. Detachable nozzle body
US6227461B1 (en) * 1999-11-08 2001-05-08 Fred W. Schroeder Flow nozzle for injection molding
US6234783B1 (en) * 1998-04-07 2001-05-22 Ju-Oh Inc. Injection molding nozzle
US6245278B1 (en) * 1999-06-03 2001-06-12 Husky Injection Molding Systems Ltd. Injection nozzle and method
US6254377B1 (en) * 1998-04-21 2001-07-03 Synventive Molding Solutions, Inc. Manifold system having flow control using extended valve pin
US6261084B1 (en) * 1998-08-28 2001-07-17 Synventive Moldings Solutions Canada, Inc. Elastically deformable nozzle for injection molding
US6264460B1 (en) * 1999-12-09 2001-07-24 Pechiney Emballage Flexible Europe Injection gate insulating and cooling apparatus
US6358039B1 (en) * 1999-11-23 2002-03-19 Otto Manner Heisskanalsysteme Gmbh & Co. Kg Open injection-molding nozzle
US6358038B1 (en) * 1998-06-26 2002-03-19 Oleg Rozenberg Injection stretch blow molding machine
US6394785B1 (en) * 2000-11-20 2002-05-28 Top Grade Molds Ltd. Nozzle for injection mold
US6419116B1 (en) * 2001-02-27 2002-07-16 D-M-E Company Molding nozzle gate valve
US20030008034A1 (en) * 2001-07-06 2003-01-09 Husky Injection Molding, Ltd. Method and apparatus for injection molding articles
US6533571B2 (en) * 1999-03-19 2003-03-18 Husky Injection Molding Systems, Ltd Injection nozzle insulator assembly
US20030082264A1 (en) * 2001-10-03 2003-05-01 Mold-Masters Limited Gap seal between a nozzle and a mold component in an injection molding apparatus
US20030086997A1 (en) * 2001-10-03 2003-05-08 Mold-Masters Limited Tip assembly having at least three components for hot runner nozzle
US6709262B2 (en) * 2002-03-22 2004-03-23 Stackteck Systems Canada Inc. Nozzle cap
US20040071817A1 (en) * 2002-07-30 2004-04-15 Jonathon Fischer Valve pin guidance and alignment system for an injection molding apparatus
US6726467B1 (en) * 2002-10-16 2004-04-27 R&D Tool & Engineering Co. Injection molding nozzle
US20040131721A1 (en) * 2002-11-21 2004-07-08 Denis Babin In-line valve gated nozzle
US20040137107A1 (en) * 2002-11-21 2004-07-15 Denis Babin Hot runner nozzle with a tip, a tip surrounding piece and an alignment piece
US20040146598A1 (en) * 2002-02-21 2004-07-29 Mold-Masters Ltd. Valve pin guiding tip for a nozzle
US20050118298A1 (en) * 2001-10-05 2005-06-02 Denis Babin Gap seal between nozzle components
US20050136151A1 (en) * 2000-04-12 2005-06-23 Mold-Masters Limited Injection nozzle system and injection molding machine incorporating same
US6921259B2 (en) * 2002-02-21 2005-07-26 Mold-Masters Limited Valve pin guide for a valve-gated nozzle
US6988833B1 (en) * 2002-05-30 2006-01-24 Fag Kugelfischer Ag Roller bearing with cage fastener
US7179081B2 (en) * 2003-04-07 2007-02-20 Mold-Masters Limited Front-mountable, edge-gating nozzle
US7201335B2 (en) * 1999-10-18 2007-04-10 Mold-Masters Limited Injection nozzle system
US7344372B2 (en) * 2004-06-02 2008-03-18 Mold-Masters (2007) Limited Injection molding nozzle having an annular flow tip
US7364425B2 (en) * 2004-06-02 2008-04-29 Mold-Masters (2007) Limited Valve-gated injection molding nozzle having an annular flow

Family Cites Families (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US82264A (en) * 1868-09-15 Improvement in water-elevators
US2865050A (en) 1955-06-06 1958-12-23 Stokes F J Corp Valved gate for an injection molding press
US4053271A (en) 1976-02-04 1977-10-11 Gellert Jobst U Valve-gated injection molding mechanism
CA1032318A (en) 1976-10-12 1978-06-06 Jobst U. Gellert Valve-gated injection molding mechanism
US4173448A (en) 1978-01-06 1979-11-06 Husky Injection Molding Systems Actuating mechanism for gate valve of injection nozzle
BG28748A1 (en) 1979-05-07 1980-12-12 Mateev Apparatus for runnerless casting under presure of polymer articles
CA1136815A (en) 1980-07-15 1982-12-07 Jobst U. Gellert Injection molding nozzle seal
US4412807A (en) 1982-01-28 1983-11-01 The Continental Group, Inc. Offset flow injection nozzle
DE3245571C2 (en) 1982-12-09 1985-04-11 Männer, Otto, 7836 Bahlingen Valve gate nozzle for injection molds
US4622001A (en) 1985-03-12 1986-11-11 Electra Form, Inc. Cavity cooling system
US5141696A (en) * 1986-06-30 1992-08-25 Osuna Diaz J M Method for injection molding using flow adjusting arrangement
DE3631850A1 (en) 1986-09-19 1988-04-07 Zimmermann Wolfgang THE THERMODYNAMIC POINT GATE NOZZLE
US4771164A (en) 1987-04-01 1988-09-13 Gellert Jobst U Injection molding nozzle and method
US4787836A (en) 1987-06-30 1988-11-29 Fairchild Industries, Inc. Injection molding nozzle
CA1267514A (en) 1987-07-15 1990-04-10 Jobst Ulrich Gellert Coated injection molding nozzle and method
US4781572A (en) 1987-10-09 1988-11-01 Sonoco Products Company Self-regulating gate valve assembly for injection molding apparatus
CA1261573A (en) 1987-10-16 1989-09-26 Harald H. Schmidt Injection molding nozzle having grounded heating element brazed into pointed tip
US5254305A (en) 1987-12-10 1993-10-19 Otto Hofstetter Ag Injection nozzle and method for charging an injection nozzle
CA1265909A (en) 1988-02-16 1990-02-20 Jobst Ulrich Gellert Injection molding heated gate insert and method
DE3833868A1 (en) * 1988-10-05 1990-04-12 Hofstetter Ag Otto METHOD FOR INJECTION MOLDING PET SHAPES AND GATE SYSTEM
DE3935565C2 (en) 1988-10-31 1997-07-24 Ikeda Bussan Co Process for producing a foamed plastic part, in particular for seat cushions, backrests or the like.
US5067893A (en) 1990-06-15 1991-11-26 Osuna Diaz Jesus M Injection molding apparatus with shut off valve pin actuation system
DE4028660A1 (en) 1990-09-10 1992-03-26 Incoe International Inc Zweign HOT CHANNEL DISTRIBUTION SYSTEM
US5336675A (en) * 1991-05-14 1994-08-09 Ernir Snorrason Method of treating mania in humans
CA2068543C (en) * 1992-05-11 1999-11-09 Jobst Ulrich Gellert Coinjection molding apparatus having rotary axial actuating mechanism
CA2073710C (en) 1992-07-13 2000-03-28 Jobst Ulrich Gellert Injection molding nozzle with removable forward member
US5360333A (en) * 1992-09-30 1994-11-01 Husky Injection Molding Systems Ltd. Band heater clamp arrangement for an injection molding machine
CA2082700A1 (en) 1992-11-12 1994-05-13 Jobst Ulrich Gellert Injection molding torpedo with diagonal melt bore
US5421191A (en) * 1993-03-08 1995-06-06 Chrysler Corporation Knock sensor diagnostic system
CA2091406C (en) 1993-03-10 2001-07-17 Jobst Ulrich Gellert Injection molding nozzle insert with valve member locating blades
US5569475A (en) 1993-06-10 1996-10-29 D-M-E Company Insulator for thermoplastic molding nozzle assembly
CA2099454C (en) * 1993-06-30 2001-11-27 Jobst Ulrich Gellert Two-piece injection molding nozzle seal
WO1995005276A1 (en) 1993-08-12 1995-02-23 Kona Corporation Improved hot runner injection molding system
US5501594A (en) * 1994-02-16 1996-03-26 Eastman Kodak Company Apparatus for forming a thermoplastic body
US5474439A (en) 1994-04-13 1995-12-12 Caco Pacific Corporation Fluid injecting nozzle having spaced projections
US5443381A (en) 1994-07-18 1995-08-22 Gellert; Jobst U. Injection molding one-piece insert having cooling chamber with radial rib portions
US5545028A (en) † 1994-08-16 1996-08-13 Kona Corporation Bushing tip for injection molding apparatus
CA2165514C (en) 1995-12-18 2007-10-02 Jobst Ulrich Gellert Injection molding carbide torpedo
CA2149387C (en) * 1995-05-15 2006-09-05 Jobst Ulrich Gellert Injection molding hot tip side gate seal with circumferential rim
US5870727A (en) * 1995-05-22 1999-02-09 Gte Data Services Incorporated Rule-based system for the provision of complex navigational logic
CA2153079A1 (en) 1995-06-30 1996-12-31 Klaus Bauer Valve member locating insert for injection molding nozzle
DE59605137D1 (en) 1995-06-30 2000-06-08 Christian Stern NOZZLE FOR INJECTION MOLDING OF PLASTICS
US5686122A (en) 1995-11-17 1997-11-11 Husky Injection Molding Systems Ltd. Modular mold cooling system
DE29602484U1 (en) 1996-02-13 1996-03-28 Männer, Otto, 79353 Bahlingen Needle valve with a needle guide
DE19605209C2 (en) 1996-02-13 1999-01-07 Otto Maenner Needle valve with a needle guide
DE19608676C1 (en) 1996-03-06 1997-01-30 Hasco Normalien Hasenclever Co Closure nozzle for a tool mold for processing plastic masses, in particular for a plastic injection mold
CA2175634C (en) 1996-05-02 2007-08-21 Klaus Bauer Injection molding valve member with head and neck portions
JP3028407B2 (en) 1996-05-20 2000-04-04 株式会社吉野工業所 Valve gate device for injection mold
JP3802613B2 (en) * 1996-07-22 2006-07-26 積水化学工業株式会社 Hot runner mold
US5804228A (en) 1996-08-21 1998-09-08 Caco Pacific Corporation Minimum vestige nozzle assembly for plastics injection molding
US5916605A (en) 1996-09-27 1999-06-29 Dynisco Hotrunners, Inc. Valve actuated injection molding apparatus
DE69607000T2 (en) 1996-09-30 2000-12-14 Dynisco Hotrunners B.V., The Hague Sealing device for injection molding
CA2187497C (en) 1996-10-09 2005-06-28 Jobst Ulrich Gellert Injection molding nozzle guide and sealing ring
CA2190569C (en) 1996-11-18 2005-11-08 Jobst Ulrich Gellert Injection molding nozzle with edge gate inserts and sealing ring
US5845853A (en) 1996-12-02 1998-12-08 Friedman; Michael Nozzle assembly for expelling a viscous mass
CA2193327A1 (en) 1996-12-18 1998-06-18 Jobst Ulrich Gellert Injection molding apparatus with insert secured through the manifold to a nozzle
DE59610789D1 (en) 1996-12-23 2003-11-27 Sulzer Chemtech Ag Winterthur Nozzle for a polymer melt
US5820899A (en) 1996-12-23 1998-10-13 Mold-Masters Limited Injection molding nozzle with edge gate inserts and sealing ring
CA2203741C (en) 1997-04-25 2007-02-20 Mold-Masters Limited Injection molding apparatus with a one-piece gate insert locating a cylindrical valve member
KR100226350B1 (en) 1997-06-11 1999-10-15 전주범 Laundry preservation method for washing machine with constant temperature control function
US6287107B1 (en) 1997-09-02 2001-09-11 Synventive Molding Solutions, Inc. Apparatus for proportionally controlling fluid delivery to a mold
US6309208B1 (en) 1997-06-13 2001-10-30 Synventive Molding Solutions, Inc. Apparatus for proportionally controlling fluid delivery to a mold
US5948448A (en) 1997-11-18 1999-09-07 Eurotool, Inc. Apparatus for controlling plastic melt flow in injection molding machines
SE518906C2 (en) 1997-12-05 2002-12-03 Helldin Ab N Injection molding device
US5980234A (en) 1998-04-29 1999-11-09 R & D Tool & Engineering Co., Blow mold apparatus for minimal gate
DE29809855U1 (en) 1998-06-03 1998-08-20 Günther Heißkanaltechnik GmbH, 35066 Frankenberg Valve gate
US6305923B1 (en) 1998-06-12 2001-10-23 Husky Injection Molding Systems Ltd. Molding system using film heaters and/or sensors
US6143358A (en) 1998-10-01 2000-11-07 Nanofilm, Ltd. Hydrophobic thin films on magnesium fluoride surfaces
US6428305B2 (en) 1998-10-13 2002-08-06 Husky Injection Molding Systems Ltd. Injection molding nozzle tip insulator and injection molding device
US6135757A (en) 1998-10-16 2000-10-24 Husky Injection Systems Ltd. Valve gated injection molding system
US6318990B1 (en) 1998-10-16 2001-11-20 Mold-Masters Limited Injection molding nozzle apparatus
US6164954A (en) * 1998-12-08 2000-12-26 Husky Injection Molding Systems Ltd. High pressure injection nozzle
CA2261367C (en) 1999-02-08 2008-04-22 Mold-Masters Limited Injection molding valve member actuating mechanism
CA2262175C (en) 1999-02-16 2008-02-12 Mold-Masters Limited Injection molding apparatus with removable nozzle seal
US6315549B1 (en) 1999-03-19 2001-11-13 Husky Injection Molding Systems Ltd. Hot tip insulator retainer
US6208052B1 (en) 1999-08-18 2001-03-27 Siemens Canada Limited Cooling module for an electronically controlled engine
DE10008722B4 (en) 2000-02-24 2010-02-11 EWIKON Heißkanalsysteme GmbH & Co. KG connecting element
AU2001252074A1 (en) 2000-04-12 2001-10-30 Mold-Masters Limited Injection nozzle system and injection molding machine incorporating same
CA2332062A1 (en) 2001-01-23 2002-07-23 Denis Babin Integral multi-material injection molding nozzle seal and tip
CA2410538A1 (en) 2000-06-16 2001-12-27 Frank J. Eigler Injection molding hot runner nozzle with removable seal
DE10037739B4 (en) 2000-08-02 2004-02-26 Siemens Ag Hot runner nozzle for an injection mold
IT1320639B1 (en) 2000-09-13 2003-12-10 Piero Enrietti HEATED HEAD TO FEED AN INJECTION NOZZLE FOR THE MOLDING OF PLASTIC MATERIALS.
JP2002273768A (en) 2001-03-15 2002-09-25 Mitsubishi Materials Corp Valve gate type molding apparatus
JP2002307492A (en) 2001-04-11 2002-10-23 Mitsubishi Materials Corp Valve gate type mold assembly
JP2003011173A (en) 2001-06-27 2003-01-15 Mitsubishi Materials Corp Valve gate type mold assembly
JP2003011174A (en) 2001-06-28 2003-01-15 Mitsubishi Materials Corp Valve gate type mold assembly
JP2003011176A (en) 2001-06-29 2003-01-15 Mitsubishi Materials Corp Valve gate type mold assembly
US7156651B2 (en) 2001-07-06 2007-01-02 Husky Injection Molding Systems Ltd. Apparatus for injection molding articles
JP2003071873A (en) 2001-08-31 2003-03-12 Mitsubishi Materials Corp Valve gate type mold assembly
CN100349718C (en) 2001-10-03 2007-11-21 标准模具有限公司 Gap seal between a nozzle and a mold component in an injection molding apparatus
ITTO20011214A1 (en) 2001-12-21 2003-06-21 Incos Spa INJECTOR NOZZLE FOR INJECTION MOLDING EQUIPMENT OF PLASTIC MATERIALS.
AU2003218927A1 (en) 2002-04-12 2003-10-27 Mold-Masters Limited Mold gate insert with a thermal barrier
US6609902B1 (en) 2002-11-12 2003-08-26 Husky Injection Molding Systems Ltd. Injection molding nozzle
CA2452112A1 (en) 2002-12-09 2004-06-09 Mold-Masters Limited Nozzle tip and seal
US7143496B2 (en) 2003-05-08 2006-12-05 Mold-Masters Limited Hot runner nozzle with removable tip and tip retainer
ITRM20040154A1 (en) 2004-03-24 2004-06-24 Sipa Societa Industrializzazio INJECTION DEVICE.

Patent Citations (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488810A (en) * 1967-03-17 1970-01-13 Jobst U Gellert Valve-gated mold construction
US3741704A (en) * 1969-12-11 1973-06-26 Lucas Industries Ltd Apparatus for hot runner injection moulding
US3677682A (en) * 1970-03-09 1972-07-18 Ladislao Wladyslaw Putkowski Hot runner system
US3716318A (en) * 1971-02-04 1973-02-13 Gte Sylvania Inc Valving means for injection molding apparatus
US4004871A (en) * 1973-03-12 1977-01-25 Claude Hardy Mold gate apparatus
US3952927A (en) * 1974-04-26 1976-04-27 Standard Oil Company Injection nozzle having guides for nozzle rod
US4010903A (en) * 1974-06-27 1977-03-08 Torazo Saito Nozzle for injection molding of thermoplastics
US4013393A (en) * 1975-04-10 1977-03-22 Gellert Jobst U Valve-gated injection molding mechanism
US4043740A (en) * 1976-03-25 1977-08-23 Gellert Jobst U Injection molding nozzle seal
US4268240A (en) * 1978-01-06 1981-05-19 Husky Injection Molding Systems Actuating mechanism for gate valve of injection nozzle
US4268241A (en) * 1978-01-06 1981-05-19 Husky Injection Molding Systems Heated injection nozzle
US4212627A (en) * 1978-12-08 1980-07-15 Gellert Jobst U Injection molding valve pin actuator mechanism
US4318686A (en) * 1980-01-03 1982-03-09 International Tools (1973) Limited Injection molding apparatus for molding parts of thermosetting plastic material
US4312630A (en) * 1980-03-18 1982-01-26 Nicola Travaglini Heaterless hot nozzle
US4279588A (en) * 1980-07-15 1981-07-21 Gellert Jobst U Hot tip seal
US4330258A (en) * 1980-10-15 1982-05-18 Gellert Jobst U Injection molding mechanical double acting valve pin actuator
US4368028A (en) * 1981-02-02 1983-01-11 Grish Anthony J Annular flow plastic extrusion nozzle or gate
US4450999A (en) * 1982-07-12 1984-05-29 Gellert Jobst U Injection molding hot tip seal
US4517453A (en) * 1983-02-02 1985-05-14 Shigeru Tsutsumi Hot tip bushing means for a synthetic resin injection molding machine
US4662837A (en) * 1985-03-18 1987-05-05 Husky Injection Molding Systems, Ltd. Apparatus for injection molding
US4768028A (en) * 1985-03-29 1988-08-30 Ferranti Plc Display control apparatus having a cursor
US4652230A (en) * 1985-05-06 1987-03-24 Osuna Diaz J M Injection molding nozzle
US4663811A (en) * 1985-12-02 1987-05-12 Gellert Jobst U Manufacturing method for selected gate configuration injection molding nozzles
US4902218A (en) * 1987-12-24 1990-02-20 Societe A Responsabilite Limitee Dite: Delta Projet Nozzle for plastic injection mould
US4832593A (en) * 1988-01-25 1989-05-23 Husky Injection Molding Systems Ltd. Large nozzle for hot runner mold
US4911636A (en) * 1988-09-30 1990-03-27 Gellert Jobst U Injection molding nozzle having nose portion with heating element encircling the bore
US5028227A (en) * 1988-10-31 1991-07-02 Mold-Masters Limited Injection molding nozzle with replaceable gate insert
US4925384A (en) * 1988-12-21 1990-05-15 Maenner Otto Apparatus for admitting hardenable material into the dies of molding machines
US4950154A (en) * 1989-07-03 1990-08-21 Moberg Clifford A Combination injection mold and sprue bushing
US4981431A (en) * 1989-07-13 1991-01-01 Mold-Masters Limited Injection molding system with flanged insulating gate seal
US5208228A (en) * 1989-11-13 1993-05-04 Merck & Co., Inc. Aminomacrolides and derivatives having immunosuppressive activity
US4945630A (en) * 1990-01-19 1990-08-07 Gellert Jobst U Method of making a selected size injection molding nozzle
US5015170A (en) * 1990-07-27 1991-05-14 Gellert Jobst U Injection molding cooled socket holder for a heated nozzle
US5030084A (en) * 1990-09-04 1991-07-09 Mold-Masters Limited Pre-wired injection molding assembly
US5135377A (en) * 1990-10-12 1992-08-04 Gellert Jobst U Injection molding nozzle for an injection molding system
US5209107A (en) * 1991-04-04 1993-05-11 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
US5308953A (en) * 1991-04-04 1994-05-03 Dynisco, Inc. Heater block holder for a capillary rheometer plunger pressure transducer
US5208052A (en) * 1991-11-18 1993-05-04 Husky Injection Molding Systems Ltd. Hot runner nozzle assembly
US5504594A (en) * 1991-11-20 1996-04-02 Dai Nippon Printing Co., Ltd. Hologram, article including hologram, and hologram recording and reconstructing methods
US5324191A (en) * 1992-09-30 1994-06-28 Husky Injection Molding Systems Ltd. Sealed edge gate
US5518393A (en) * 1992-09-30 1996-05-21 Husky Injection Molding Systems Ltd. Hot runner manifold bushing
US5299928A (en) * 1993-07-26 1994-04-05 Gellert Jobst U Two-piece injection molding nozzle seal
US5885628A (en) * 1993-08-12 1999-03-23 Dynisco, Inc. Injection molding nozzle
US5505613A (en) * 1993-08-13 1996-04-09 Apparate-Und Werkzeugbau Ag Injection molding nozzle having a centering bushing
US5492467A (en) * 1993-12-30 1996-02-20 Kona Corporation Apparatus for injection molding articles of amorphous polyethylene terephthalate
US5421716A (en) * 1994-05-11 1995-06-06 Gellert; Jobst U. Injection molding nozzle with two removable inserts
US6036467A (en) * 1994-06-23 2000-03-14 Kimberly-Clark Worldwide, Inc. Apparatus for ultrasonically assisted melt extrusion of fibers
US6022210A (en) * 1995-01-31 2000-02-08 Gunther Heisskanaltechnik Gmbh Hot runner nozzle
US5652003A (en) * 1995-07-28 1997-07-29 Gellert; Jobst Ulrich Injection molding nozzle with radial vanes
US5707667A (en) * 1995-12-07 1998-01-13 Husky Injection Molding Systems Ltd. Sound insulated injection molding machine
US5871785A (en) * 1996-05-10 1999-02-16 Eurotool Beheer B.V. Injection moulding system and heating element for use in such a system
US5736171A (en) * 1996-06-04 1998-04-07 Caco Pacific Corporation Fluid injecting nozzle having spaced projections
US5879727A (en) * 1997-01-21 1999-03-09 Husky Injection Molding Systems, Ltd. Insulated modular injection nozzle system
US5871786A (en) * 1997-04-04 1999-02-16 Kona Corporation Tip heated hot runner nozzle
US5925386A (en) * 1997-06-11 1999-07-20 Moberg; Clifford A. Wear-resistant sprue bushing
US5895669A (en) * 1997-06-13 1999-04-20 Incoe Corporation Injection molding shut-off bushing with separate material flow path
US5894025A (en) * 1997-06-13 1999-04-13 Kona Corporation Valve pin actuator
US6017209A (en) * 1998-02-02 2000-01-25 Mold-Masters Limited Injection molding cooled gate insert
US6030202A (en) * 1998-02-02 2000-02-29 Mold-Masters Limited Injection molding three portion gate and cavity insert
US6050806A (en) * 1998-02-26 2000-04-18 Yudo Co., Ltd. Injection nozzle with cushion ring
US6234783B1 (en) * 1998-04-07 2001-05-22 Ju-Oh Inc. Injection molding nozzle
US6254377B1 (en) * 1998-04-21 2001-07-03 Synventive Molding Solutions, Inc. Manifold system having flow control using extended valve pin
US6358038B1 (en) * 1998-06-26 2002-03-19 Oleg Rozenberg Injection stretch blow molding machine
US6261084B1 (en) * 1998-08-28 2001-07-17 Synventive Moldings Solutions Canada, Inc. Elastically deformable nozzle for injection molding
US6009616A (en) * 1998-10-16 2000-01-04 Gellert; Jobst Ulrich Method of making an injection molding nozzle with tip insert
US6074195A (en) * 1998-12-08 2000-06-13 Fast Heat, Inc. Hot runner nozzle with laminar flow pin point tip
US6533571B2 (en) * 1999-03-19 2003-03-18 Husky Injection Molding Systems, Ltd Injection nozzle insulator assembly
US6220851B1 (en) * 1999-04-19 2001-04-24 Husky Injection Molding Systems Ltd. Detachable nozzle body
US6245278B1 (en) * 1999-06-03 2001-06-12 Husky Injection Molding Systems Ltd. Injection nozzle and method
US7201335B2 (en) * 1999-10-18 2007-04-10 Mold-Masters Limited Injection nozzle system
US6227461B1 (en) * 1999-11-08 2001-05-08 Fred W. Schroeder Flow nozzle for injection molding
US6089468A (en) * 1999-11-08 2000-07-18 Husky Injection Molding Systems Ltd. Nozzle tip with weld line eliminator
US6358039B1 (en) * 1999-11-23 2002-03-19 Otto Manner Heisskanalsysteme Gmbh & Co. Kg Open injection-molding nozzle
US6264460B1 (en) * 1999-12-09 2001-07-24 Pechiney Emballage Flexible Europe Injection gate insulating and cooling apparatus
US20050136151A1 (en) * 2000-04-12 2005-06-23 Mold-Masters Limited Injection nozzle system and injection molding machine incorporating same
US7182591B2 (en) * 2000-04-12 2007-02-27 Mold-Masters Limited Injection nozzle system and injection molding machine incorporating same
US6394785B1 (en) * 2000-11-20 2002-05-28 Top Grade Molds Ltd. Nozzle for injection mold
US6419116B1 (en) * 2001-02-27 2002-07-16 D-M-E Company Molding nozzle gate valve
US20030008034A1 (en) * 2001-07-06 2003-01-09 Husky Injection Molding, Ltd. Method and apparatus for injection molding articles
US20040058031A1 (en) * 2001-07-06 2004-03-25 Husky Injection Molding Systems Ltd Apparatus for injection molded articles
US20030086997A1 (en) * 2001-10-03 2003-05-08 Mold-Masters Limited Tip assembly having at least three components for hot runner nozzle
US7891969B2 (en) * 2001-10-03 2011-02-22 Mold-Masters (2007) Limited Injection molding nozzle
US6921257B2 (en) * 2001-10-03 2005-07-26 Mold-Masters Limited Tip assembly having at least three components for hot runner nozzle
US20030082264A1 (en) * 2001-10-03 2003-05-01 Mold-Masters Limited Gap seal between a nozzle and a mold component in an injection molding apparatus
US6988883B2 (en) * 2001-10-03 2006-01-24 Mold-Masters Limited Injection molding apparatus having a nozzle tip and a tip surrounding piece of equal thermal conductivity
US6869276B2 (en) * 2001-10-03 2005-03-22 Mold-Masters Limited Nozzle seal for an injection molding apparatus
US20050106283A1 (en) * 2001-10-03 2005-05-19 Gheorghe Olaru Injection molding nozzle
US20050118298A1 (en) * 2001-10-05 2005-06-02 Denis Babin Gap seal between nozzle components
US20040146598A1 (en) * 2002-02-21 2004-07-29 Mold-Masters Ltd. Valve pin guiding tip for a nozzle
US6921259B2 (en) * 2002-02-21 2005-07-26 Mold-Masters Limited Valve pin guide for a valve-gated nozzle
US6709262B2 (en) * 2002-03-22 2004-03-23 Stackteck Systems Canada Inc. Nozzle cap
US6988833B1 (en) * 2002-05-30 2006-01-24 Fag Kugelfischer Ag Roller bearing with cage fastener
US20040071817A1 (en) * 2002-07-30 2004-04-15 Jonathon Fischer Valve pin guidance and alignment system for an injection molding apparatus
US6726467B1 (en) * 2002-10-16 2004-04-27 R&D Tool & Engineering Co. Injection molding nozzle
US20040131721A1 (en) * 2002-11-21 2004-07-08 Denis Babin In-line valve gated nozzle
US20040137107A1 (en) * 2002-11-21 2004-07-15 Denis Babin Hot runner nozzle with a tip, a tip surrounding piece and an alignment piece
US7179081B2 (en) * 2003-04-07 2007-02-20 Mold-Masters Limited Front-mountable, edge-gating nozzle
US7344372B2 (en) * 2004-06-02 2008-03-18 Mold-Masters (2007) Limited Injection molding nozzle having an annular flow tip
US7364425B2 (en) * 2004-06-02 2008-04-29 Mold-Masters (2007) Limited Valve-gated injection molding nozzle having an annular flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104369318A (en) * 2014-11-10 2015-02-25 苏州洛世奇热流道科技有限公司 Straight valve needle sprue hot runner spray nozzle

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