CN112622190A - Sprue bushing structure of fine nozzle - Google Patents

Sprue bushing structure of fine nozzle Download PDF

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Publication number
CN112622190A
CN112622190A CN202011415700.9A CN202011415700A CN112622190A CN 112622190 A CN112622190 A CN 112622190A CN 202011415700 A CN202011415700 A CN 202011415700A CN 112622190 A CN112622190 A CN 112622190A
Authority
CN
China
Prior art keywords
sprue
sprue bush
plate
bushing
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011415700.9A
Other languages
Chinese (zh)
Inventor
李香芬
卢云祥
付杰华
张聪娟
漆昌林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Huabao Baishun Mould Manufacturing Co ltd
Original Assignee
Ningbo Huabao Baishun Mould Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Huabao Baishun Mould Manufacturing Co ltd filed Critical Ningbo Huabao Baishun Mould Manufacturing Co ltd
Priority to CN202011415700.9A priority Critical patent/CN112622190A/en
Publication of CN112622190A publication Critical patent/CN112622190A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a thin sprue bush structure, which belongs to the technical field of sprue bush structures and comprises a positioning ring, a panel, a sprue bush and a sprue plate, wherein the sprue bush is arranged on the panel from the front side, the sprue plate is arranged on the back side of the panel, the positioning ring is arranged on the front side of the panel and is positioned above the sprue bush, a sprue bush fixing plate is arranged on the back side of the panel, the sprue bush fixing plate is arranged between the panel and the sprue plate, and the sprue bush is arranged on the sprue bush fixing plate from the front side, penetrates through the sprue bush fixing plate and is inserted into the sprue plate. The sprue bush structure of the thin sprue can shorten the length of a main runner, and a sprue bush can be directly disassembled and assembled on an injection molding machine.

Description

Sprue bushing structure of fine nozzle
Technical Field
The invention relates to the technical field of sprue bush structures, in particular to a sprue bush structure with a thin sprue.
Background
The sprue bush is also called a sprue bushing, a pouring nozzle and a sprue bush, is a runner component for injecting molten materials into a mold from a nozzle of an injection molding machine, and is used for connecting a forming mold and accessories of the injection molding machine.
At present, a common positioning ring and a common sprue bush are generally adopted in a conventional thin sprue bush series, and a die is arranged from the front side of a panel and is fixed on the panel by screws. The structure of the sprue bush of the fine nozzle has the following defects: firstly, the main flow channel is too long, the cost of raw materials is high, and the waste is large; and secondly, the sprue bush is not detachable on the injection molding machine, the sprue bush can be taken out for adjustment only by detaching the mold from the injection molding machine when the size of the main runner is adjusted, and more labor hour, machine resources and electric energy are consumed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a sprue bush structure with a thin sprue, which can shorten the length of a main runner and can be used for directly dismounting and mounting the sprue bush on an injection molding machine.
In order to achieve the purpose, the invention adopts the technical scheme that: a thin sprue bush structure comprises a locating ring, a panel, a sprue bush and a sprue plate, wherein the sprue bush is arranged on the panel from the front side, the sprue bush is arranged on the back side of the panel, the locating ring is arranged on the front side of the panel and positioned above the sprue bush, a sprue bush fixing plate is arranged on the back side of the panel, the sprue bush fixing plate is arranged between the panel and the sprue plate, and the sprue bush is arranged on the sprue bush fixing plate from the front side and penetrates through the sprue bush fixing plate to be inserted into the sprue plate.
Further, the sprue bush-fixing plate is sunk into the face plate from a rear portion of the face plate.
Further, the sprue bush-fixing plate is mounted on the face plate by a first fixing member.
Further, the sprue bushing is recessed into the header plate from a front portion of the header plate.
Furthermore, the sprue bush is provided with a wider top and a narrower bottom, the panel is provided with an installation notch, the sprue bush is installed in the installation notch from the front side of the panel, the top of the sprue bush is installed on the front side of the sprue bush fixing plate through a second fixing piece, and the bottom of the sprue bush penetrates through the sprue bush fixing plate and then is inserted into the sprue plate.
Furthermore, an outer conical surface is arranged at the position, far away from the top of the sprue bush, of the bottom of the sprue bush, and the water gap plate is provided with an inclined surface matched with the outer conical surface.
Further, the sprue bush is an A-type sprue bush.
Furthermore, the positioning ring is arranged on the front face of the panel through a third fixing piece.
Further, each fixing member is provided as a screw or a bolt.
Compared with the prior art, the invention has the advantages that after the structure of the sprue bush with the thin sprue is adopted: the invention has compact integral layout of the thin sprue bush structure, adopts the proposal that the sprue bush fixing plate is used for installing the sprue bush, the positioning ring is arranged in the front of the panel and positioned above the sprue bush, the sprue bush is arranged outside the back of the panel, the sprue bush fixing plate is arranged in the back of the panel and between the panel and the sprue bush, the sprue bush is arranged on the sprue bush fixing plate, the design of the sprue bush fixing plate directly replaces a part of conventional panel structure, the effect of effectively shortening the length of a main runner of the sprue bush can be achieved, and because the sprue bush fixing plate is arranged in the panel from the back, when a mould is opened in an injection molding machine, the sprue bush can be directly disassembled and assembled, the size of the main runner can be changed more conveniently, the operation is simple and rapid, the material cost and the labor cost can be saved, and the machine resource and the energy consumption can be saved.
Drawings
FIG. 1 is a schematic structural view of a thin sprue bushing structure according to the present invention;
FIG. 2 is a cross-sectional view of a thin sprue bushing configuration of the present invention;
FIG. 3 is a cross-sectional view of another perspective of the sprue bushing structure of the present invention;
fig. 4 is a partial exploded view of the sprue bushing structure of the fine gate nozzle of the present invention.
In the figure: 10. a sprue bush; 20. a panel; 30. a water gap plate; 40. a sprue bush fixing plate; 50. a first fixing member; 60. a second fixing member; 71. an outer conical surface; 72. a bevel; 80. positioning rings; 90. and a third fixing member.
Detailed Description
The following description is only a preferred embodiment of the present invention, so that the present invention is more clearly and clearly understood, and the protection scope of the present invention is not limited thereby.
The invention mainly protects a sprue bush structure of a thin sprue gate, which is suitable for an injection molding machine, can shorten the length of a main runner, and can be used for directly dismounting and mounting the sprue bush 10 on the injection molding machine.
Referring to fig. 1 to 4, the thin nozzle sprue bush structure of the present invention includes a retainer 80, a face plate 20, a sprue bush 10 installed in the face plate 20 from a front side (where the front side is the front side of the face plate 20), and a sprue plate 30 installed on a back side of the face plate 20, wherein the retainer 80 is installed on the front side of the face plate 20 and located above the sprue bush 10, a sprue bush fixing plate 40 is installed on the back side of the face plate 20, the sprue bush fixing plate 40 is installed between the face plate 20 and the sprue plate 30, and the sprue bush 10 is installed on the sprue bush fixing plate 40 from a front side (where the front side is the front side of the sprue bush fixing plate 40) and inserted into the sprue plate 30 after passing through the sprue bush fixing plate 40.
The invention is a combined thin nozzle sprue bush structure, which adopts the proposal that a sprue bush fixing plate 40 is used for installing the sprue bush 10, a positioning ring 80 is arranged in the front of a panel 20 and above the sprue bush 10, a sprue plate 30 is arranged outside the back surface of the panel 20, the sprue bush fixing plate 40 is arranged in the back surface (back surface) of the panel 20, the sprue bush fixing plate 40 is arranged between the panel 20 and the sprue plate 30, the sprue bush 10 is arranged on the sprue bush fixing plate 40, the design of the sprue bush fixing plate 40 directly replaces a part of the conventional panel 20 structure, which can effectively shorten the length of a main runner of the sprue bush 10, and because the sprue bush fixing plate 40 is arranged in the panel 20 from the back surface (back surface), when a mold is opened in an injection molding machine, the sprue bush 10 can be directly assembled and disassembled, the size of the main runner can be conveniently changed, the operation is simple and fast, and the material cost and the labor cost can be saved, and the machine resource and the energy consumption can be saved.
The sprue bush 10 may be classified into: a type, B type, C type, D type, E type, etc., wherein A, B, C types are commonly used.
Preferably, the sprue bushing 10 of the present invention is configured as an a-style sprue bushing 10. The A-shaped sprue bush 10 is provided with a special bolt fixing interface and is fixed through bolts, so that the sprue bush 10 can be prevented from falling off due to overlarge injection molding pressure.
The invention adopts the scheme of the positioning ring 80, the A-shaped sprue bush 10 and the sprue bush fixing plate 40, so that the length of a main runner of the sprue bush 10 can be shortened, and the sprue bush 10 can be directly disassembled and assembled on an injection molding machine.
Preferably, the bezel 80 is mounted to the front of the face plate 20 by a third fastener 90. The retainer 80 is detachably connected to the panel 20, and preferably, the retainer 80 is fixed to the panel 20 by screws, and more preferably, two M6 socket head cap screws are used to fix the retainer to the panel 20, so that the connection is more secure.
In the present invention, in order to further optimize the solution that can shorten the length of the main runner, the sprue bush-fixing plate 40 can be properly sunk into the nozzle plate 30 and/or the face plate 20, so that the overall height of the face plate 20 and the nozzle plate 30 after installation can be shortened more effectively and reliably, the height of the sprue bush 10 can be shortened, and the length of the main runner can be effectively shortened.
Specifically, it is preferable that the sprue bush-fixing plate 40 is partially embedded or partially sunk into the face plate 20 from the rear side (where the rear side is the rear side of the face plate 20), so that a part of the upper side of the sprue bush-fixing plate 40 is sunk into the face plate 20.
When the mold is opened in the injection molding machine, the sprue bush fixing plate 40 can be opened, and the sprue bush 10 can be directly disassembled and assembled.
Further, the sprue bush-fixing plate 40 is mounted on the face plate 20 by a first fixing member 50. The first fixing member 50 of the present invention may be installed as shown in fig. 2 and/or fig. 3. The sprue bush fixing plate 40 is fixed on the panel 20 in the scheme, the connection mode is detachable connection, the sprue bush fixing plate is preferably fixed on the panel 20 through screws, and more preferably, the sprue bush fixing plate is fixed on the panel 20 through four M8 hexagon socket head cap screws, so that the connection is firmer.
Preferably, the sprue bushing 10 is partially embedded or partially submerged into the sprue plate 30 from the front face (where the front face is the front face of the sprue plate 30) such that a portion of the underside of the sprue bushing retaining plate 40 is submerged into the sprue plate 30.
In the present invention, the sprue bush 10 has a wider top and a narrower bottom, the face plate 20 is provided with an installation notch, the sprue bush 10 is installed in the installation notch from the front of the face plate 20, the top of the sprue bush 10 is installed on the front of the sprue bush fixing plate 40 by the second fixing member 60, and the bottom of the sprue bush 10 is inserted into the gate plate 30 after passing through the sprue bush fixing plate 40.
The sprue bush 10 and the sprue bush fixing plate 40 are detachably connected, preferably, the sprue bush 10 is fixed on the sprue bush fixing plate 40 through screws, and more preferably, the sprue bush is fixed on the face plate 20 through two M5 hexagon socket head cap screws, so that the connection is firmer and the work is stable.
Further, an outer conical surface 71 is arranged at the bottom of the sprue bush 10 away from the top of the sprue bush 10, and the water gap plate 30 is provided with an inclined surface 72 matched with the outer conical surface 71.
The present invention has a taper fit between the sprue bushing 10 and the nozzle plate 30, preferably a 3 to 10 degree taper fit, and more preferably a 5 degree taper fit.
In the invention, the fixing pieces are preferably set to be screws or bolts, so that the mounting and the dismounting are convenient, and the dismounting maintenance and the adjustment of the sprue bush 10 are more convenient.
In conclusion, compared with the common thin sprue bush series, the sprue bush has the problems of too long main runner, large raw material waste and high production cost; after the sprue bush structure is adopted, the main runner can be reduced by 15mm to 20mm, and the cost is saved.
Compared with the common sprue bush mould with a thin sprue bush, the sprue bush mould can not be directly disassembled and assembled when being installed in an injection molding machine, and the sprue bush 10 can be taken out for adjustment only by disassembling the mould from the injection molding machine if the size of a main runner needs to be adjusted; after the sprue bush structure is adopted, the sprue bush 10 can be directly assembled and disassembled on an injection molding machine, a main runner is convenient to adjust, and the cost is saved.
While the invention has been described with reference to a preferred embodiment and principles of technology applied thereto, it will be understood by those skilled in the art that the invention is not limited to the particular embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions without departing from the scope of the invention.

Claims (10)

1. A thin sprue bush structure comprises a positioning ring, a panel, a sprue bush and a sprue plate, wherein the sprue bush is arranged on the panel from the front side, the sprue bush is arranged on the back side of the panel, the positioning ring is arranged on the front side of the panel and is positioned above the sprue bush, a sprue bush fixing plate is arranged on the back side of the panel, the sprue bush fixing plate is arranged between the panel and the sprue plate, and the sprue bush is arranged on the sprue bush fixing plate from the front side and penetrates through the sprue bush fixing plate to be inserted into the sprue plate.
2. The slim sprue bushing structure of claim 1, wherein said sprue bushing retaining plate is recessed into said face plate from a rear portion of said face plate.
3. The slim sprue bushing structure of claim 1, wherein said sprue bushing is recessed into said sprue plate from a front face portion of said sprue plate.
4. The slim sprue bushing structure of claim 2, wherein said sprue bushing retainer plate is mounted to said face plate by a first fastener.
5. The slim nozzle runner bushing structure according to claim 1, wherein said runner bushing has a wider top and a narrower bottom, said faceplate is provided with a mounting notch, said runner bushing is inserted into said mounting notch from a front face of the faceplate, said runner bushing top is mounted on a front face of said runner bushing fixing plate, and said runner bushing bottom is inserted into said runner plate after passing through said runner bushing fixing plate.
6. The thin nozzle sprue bushing structure of claim 5 wherein said sprue bushing top is mounted to said sprue bushing retaining plate front face by a second fastener.
7. The sprue bushing structure of claim 5, wherein the bottom of the sprue bushing is provided with an external tapered surface at a position away from the top of the sprue bushing, and the sprue plate is provided with a slope adapted to the external tapered surface.
8. The slim sprue bushing structure of claim 1, wherein said sprue bushing is configured as an a-type sprue bushing.
9. The sprue bushing arrangement of claim 8 wherein said retainer is mounted to said face plate front face by a third fastener.
10. The fine nozzle sprue bushing structure of claim 4, 6 or 9 wherein each fastener is configured as a screw or bolt.
CN202011415700.9A 2020-12-04 2020-12-04 Sprue bushing structure of fine nozzle Pending CN112622190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011415700.9A CN112622190A (en) 2020-12-04 2020-12-04 Sprue bushing structure of fine nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011415700.9A CN112622190A (en) 2020-12-04 2020-12-04 Sprue bushing structure of fine nozzle

Publications (1)

Publication Number Publication Date
CN112622190A true CN112622190A (en) 2021-04-09

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ID=75308435

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011415700.9A Pending CN112622190A (en) 2020-12-04 2020-12-04 Sprue bushing structure of fine nozzle

Country Status (1)

Country Link
CN (1) CN112622190A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203228368U (en) * 2013-03-12 2013-10-09 成都鑫豪斯数控机械制造有限公司 Inverse point pouring gate structure for injection mold
CN207724742U (en) * 2017-12-28 2018-08-14 成都明锐精密模具有限公司 A kind of Cold runner injection mold

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203228368U (en) * 2013-03-12 2013-10-09 成都鑫豪斯数控机械制造有限公司 Inverse point pouring gate structure for injection mold
CN207724742U (en) * 2017-12-28 2018-08-14 成都明锐精密模具有限公司 A kind of Cold runner injection mold

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Application publication date: 20210409