CN108839304A - A kind of band internal screw thread plastic lid injection forming mold - Google Patents
A kind of band internal screw thread plastic lid injection forming mold Download PDFInfo
- Publication number
- CN108839304A CN108839304A CN201810562078.0A CN201810562078A CN108839304A CN 108839304 A CN108839304 A CN 108839304A CN 201810562078 A CN201810562078 A CN 201810562078A CN 108839304 A CN108839304 A CN 108839304A
- Authority
- CN
- China
- Prior art keywords
- mold
- parting mould
- screw thread
- voussoir
- flag
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses a kind of band internal screw thread plastic lid injection forming molds,Parting mould is arranged in the cavity of upper mold cylinder,Nozzle is fixed at the center of upper mold by nozzle fixed plate,Parting mould is made of two pieces of mold sections,The wedge gap matched with voussoir is equipped between two pieces of mold sections,Upper mold,Nozzle fixed plate,Voussoir,The injection die cavities of cup lid shape are equipped between parting mould,The outside of parting mould is equipped with the groove of screw thread shape,The outer wall of voussoir and the aligning inner of injection die cavities,The lower part of parting mould passes through the centre bore of flag,The side wall of two pieces of mold section lower parts is connected by spring and flag,Spring is arranged in the circular hole being arranged on flag,Two pieces of mold section lower ends are equipped with sliding block,Sliding block is matched with the sliding slot that flag is equipped with,The lower end surface of parting mould and the upper end face contact of push plate,The lower end of voussoir is connected with type core,The present invention has structure simple,The advantages of high production efficiency.
Description
Technical field
The invention belongs to plastic moulds technology fields, and in particular to a kind of band internal screw thread plastic lid injection forming mold.
Background technique
Cup lid can be widely applied for plastics and glassware field, and cup lid mostly uses greatly injection molded mode to carry out
Manufacture.Currently, the cup lid mold for cup lid is made of upper die and lower die, mold core, carry out often leading to when discharging after the completion of injection molding
Rotary core pulling mode is crossed to carry out, and the mold of rotary core pulling structure is with structure is complicated, the defect of operation stability difference；It is existing simultaneously
Some cup lid molds defect low there is also production efficiency.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of band internal screw thread plastic lid injection molding is provided
Mold.
A kind of band internal screw thread plastic lid injection forming mold, including upper mold, voussoir, parting mould, type core, nozzle, it is described on
Cylindrical cavity is equipped in mould, parting mould is arranged in the cavity of upper mold cylinder, and nozzle is fixed on by nozzle fixed plate
At the center of upper mold, the parting mould is made of two pieces of mold sections, and the wedge gap matched with voussoir is equipped between two pieces of mold sections,
The upper mold, nozzle fixed plate, voussoir, the injection die cavities that cup lid shape is equipped between parting mould, the outside of parting mould is equipped with screw thread
The groove of shape, the outer wall of voussoir and the aligning inner of injection die cavities, the lower part of parting mould pass through the centre bore of flag, two pieces of moulds
The side wall of valve lower part is connected by spring and flag, and the spring is arranged in the circular hole being arranged on flag, described
Two pieces of mold section lower ends are equipped with sliding block, and the sliding block is matched with the sliding slot that flag is equipped with, the lower end surface of the parting mould
It is connected with the lower end of the upper end face contact of push plate, the voussoir with type core, the type core is arranged in the centre bore of push plate, institute
It states type core to be fixed on core fixing plate by type core pressing plate, the lower end of the push plate is connected with ejector beam.
Preferably, the lower end of the ejector beam is connected with die pad.
Preferably, the upper mold, nozzle fixed plate are fixed on the bottom of upper die holder.
Preferably, the nozzle is communicated with injection die cavities.
Compared with prior art, beneficial effects of the present invention：
In the use of the present invention, the plastic liquid after fusing is injected injection die cavities from nozzle by injection molding machine, by pressure maintaining and
After cooling, plastic solution is frozen into solid, and upper mold moves up under the driving of hydraulic press, and when upper mold reaches top dead centre, die pad exists
Drive ejector beam moves up under the promotion of cylinder, and parting mould moves up, and voussoir is fixed structure, is not provided with screw thread on the outside of voussoir
Groove, the interior gap for being equipped with wedge shape of parting mould, two pieces of mold sections on parting mould are under spring thrust effect under flag at this time
To mobile at center, the internal screw thread of screw thread shape groove and cup lid on parting mould is detached from the sliding slot in portion, that is, completes the demoulding of cup lid,
The screw thread of cup lid finished product is broken end helicitic texture, and after completing demoulding discharging, die pad drives under ejector beam under the promotion of cylinder
It moves, under the action of parting mould is by voussoir, two pieces of mold sections are displaced outwardly, and hydraulic press drives upper mold to move down, and are molded next time.
By the way that mutually matched voussoir and parting mould is arranged to greatly simplify the structure of device, have the advantages that structure is simple；Pass through
Ejector beam is set and realizes quickly demoulding, to improve production efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram with internal screw thread plastic lid injection forming mold of the present invention.
Fig. 2 is the schematic cross-sectional view in the direction A-A in Fig. 1.
Fig. 3 is the connection schematic diagram of voussoir and parting mould in the present invention.
In figure, 1, upper die holder, 2, upper mold, 3, nozzle fixed plate, 4, injection die cavities, 5, nozzle, 6, voussoir, 7, parting mould,
8, spring, 9, flag, 10, push plate, 11, type core pressing plate, 12, core fixing plate, 13, ejector beam, 14, type core, 15, lower die
Seat, 16, sliding block.
Specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of band internal screw thread plastic lid injection forming mold, including upper mold 2, voussoir 6, parting mould
7, type core 14, nozzle 5, the upper mold 2 is interior to be equipped with cylindrical cavity, and parting mould 7 is arranged in the cylindrical cavity of upper mold 2,
Nozzle 5 is fixed at the center of upper mold 2 by nozzle fixed plate 3, and the parting mould 7 is made of two pieces of mold sections, two pieces of mold sections it
Between be equipped with the wedge gap that matches with voussoir 6, the upper mold 2, voussoir 6, is equipped with cup lid between parting mould 7 at nozzle fixed plate 3
The injection die cavities 4 of shape, the outside of parting mould 7 are equipped with the groove of screw thread shape, the outer wall of voussoir 6 and the aligning inner of injection die cavities 4,
The lower part of parting mould 7 passes through the centre bore of flag 9, and the side walls of two pieces of mold section lower parts is connected by spring 8 and flag 9
It connects, the spring 8 is arranged in the circular hole being arranged on flag 9, and two pieces of mold section lower ends are equipped with sliding block 16, the sliding block
16 sliding slots being equipped with flag 9 match, the lower end surface of the parting mould 7 and the upper end face contact of push plate 10, the wedge
The lower end of block 6 is connected with type core 14, and the type core 14 is arranged in the centre bore of push plate 10, and the type core 14 passes through type core pressure
Plate 11 is fixed on core fixing plate 12, and the lower end of the push plate 10 is connected with ejector beam 13, the lower end of the ejector beam 13
It is connected with die pad, the upper mold 2, nozzle fixed plate 3 are fixed on the bottom of upper die holder 1, the nozzle 5 and injection die cavities 4
It communicates.
The working principle of the invention is：
In the use of the present invention, the plastic liquid after fusing is injected injection die cavities 4 from nozzle 5 by injection molding machine, by pressure maintaining
After cooling, plastic solution is frozen into solid, and upper mold 2 moves up under the driving of hydraulic press, when upper mold 2 reaches top dead centre, liftout
Plate drives ejector beam 13 to move up under the promotion of cylinder, and parting mould 7 moves up, and voussoir 6 is fixed structure, and the outside of voussoir 6 does not have
There is setting thread groove, the gap of wedge shape is equipped in parting mould 7, two pieces of mold sections on parting mould 7 are in 8 thrust of spring at this time
The lower sliding slot along 9 lower part of flag is to moving at center, and the internal screw thread of screw thread shape groove and cup lid on parting mould 7 is detached from, i.e.,
The demoulding of cup lid is completed, the screw thread of cup lid finished product is broken end helicitic texture, after completing demoulding discharging, promotion of the die pad in cylinder
Lower drive ejector beam 13 moves down, and under the action of parting mould 7 is by voussoir 6, two pieces of mold sections are displaced outwardly, and hydraulic press drives upper mold 2
It moves down, is molded next time.By the way that mutually matched voussoir 6 and parting mould 7 is arranged to greatly simplify the structure of device, tool
Have the advantages that structure is simple；Quick demoulding is realized by the way that ejector beam 13 is arranged, to improve production efficiency.
Technical solution of the present invention is exemplarily described invention above in conjunction with attached drawing, it is clear that present invention specific implementation
It is not subject to the restrictions described above, changes as long as using the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out
Into, or it is not improved the conception and technical scheme of invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (4)
1. a kind of band internal screw thread plastic lid injection forming mold, including upper mold (2), voussoir (6), parting mould (7), type core (14),
Nozzle (5), it is characterised in that：Cylindrical cavity is equipped in the upper mold (2), parting mould (7) setting is in upper mold (2) cylinder
Cavity in, nozzle (5) is fixed at the center of upper mold (2) by nozzle fixed plate (3), and the parting mould (7) has two pieces of moulds
Valve forms, and the wedge gap matched with voussoir (6), the upper mold (2), nozzle fixed plate (3), wedge are equipped between two pieces of mold sections
The injection die cavities (4) of cup lid shape are equipped between block (6), parting mould (7), the outside of parting mould (7) is equipped with the groove of screw thread shape, wedge
The aligning inner of the outer wall of block (6) and injection die cavities (4), the lower part of parting mould (7) pass through the centre bore of flag (9), and two pieces
The side wall of mold section lower part is connected by spring (8) and flag (9), and the spring (8) is arranged and is arranged on flag (9)
Circular hole in, two pieces of mold section lower ends are equipped with sliding block (16), the sliding slot phase that the sliding block (16) is equipped with flag (9)
Cooperation, the lower end surface of the parting mould (7) and the upper end face contact of push plate (10), the lower end and type core (14) of the voussoir (6)
It is connected, the type core (14) is arranged in the centre bore of push plate (10), and the type core (14) is fixed by type core pressing plate (11)
On core fixing plate (12), the lower end of the push plate (10) is connected with ejector beam (13).
2. a kind of band internal screw thread plastic lid injection forming mold as described in claim 1, it is characterised in that：The ejector beam
(13) lower end is connected with die pad.
3. a kind of band internal screw thread plastic lid injection forming mold as described in claim 1, it is characterised in that：The upper mold (2),
Nozzle fixed plate (3) is fixed on the bottom of upper die holder (1).
4. a kind of band internal screw thread plastic lid injection forming mold as described in claim 1, it is characterised in that：The nozzle (5)
It is communicated with injection die cavities (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562078.0A CN108839304A (en) | 2018-06-04 | 2018-06-04 | A kind of band internal screw thread plastic lid injection forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562078.0A CN108839304A (en) | 2018-06-04 | 2018-06-04 | A kind of band internal screw thread plastic lid injection forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108839304A true CN108839304A (en) | 2018-11-20 |
Family
ID=64210591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810562078.0A Pending CN108839304A (en) | 2018-06-04 | 2018-06-04 | A kind of band internal screw thread plastic lid injection forming mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108839304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878025A (en) * | 2019-03-05 | 2019-06-14 | 安徽宁国中鼎模具制造有限公司 | A kind of novel injection molding thread cap mold |
| CN111152353A (en) * | 2020-03-18 | 2020-05-15 | 刘小明 | Ancient building green tile brick carving shedder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112413A (en) * | 1983-11-25 | 1985-06-18 | Daiichi Gaiyaa Kk | Pop-up core |
| AT410915B (en) * | 1999-09-28 | 2003-08-25 | Reinhard Perzi | TWO-STAGE EJECTOR OF AN INJECTION MOLDING TOOL |
| CN205167439U (en) * | 2015-10-14 | 2016-04-20 | 张家港市乐余百润塑料模具厂 | Loose core and take off thread die in slider inboard to one side |
| CN106003610A (en) * | 2016-07-14 | 2016-10-12 | 福州大学 | Ingenious demolding internal thread mold device and using method thereof |
| CN205929342U (en) * | 2016-07-14 | 2017-02-08 | 福州大学 | Thread die device in taking off ingeniously |
-
2018
- 2018-06-04 CN CN201810562078.0A patent/CN108839304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112413A (en) * | 1983-11-25 | 1985-06-18 | Daiichi Gaiyaa Kk | Pop-up core |
| AT410915B (en) * | 1999-09-28 | 2003-08-25 | Reinhard Perzi | TWO-STAGE EJECTOR OF AN INJECTION MOLDING TOOL |
| CN205167439U (en) * | 2015-10-14 | 2016-04-20 | 张家港市乐余百润塑料模具厂 | Loose core and take off thread die in slider inboard to one side |
| CN106003610A (en) * | 2016-07-14 | 2016-10-12 | 福州大学 | Ingenious demolding internal thread mold device and using method thereof |
| CN205929342U (en) * | 2016-07-14 | 2017-02-08 | 福州大学 | Thread die device in taking off ingeniously |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878025A (en) * | 2019-03-05 | 2019-06-14 | 安徽宁国中鼎模具制造有限公司 | A kind of novel injection molding thread cap mold |
| CN109878025B (en) * | 2019-03-05 | 2024-05-10 | 安徽宁国中鼎模具制造有限公司 | Novel injection molding threaded cover die |
| CN111152353A (en) * | 2020-03-18 | 2020-05-15 | 刘小明 | Ancient building green tile brick carving shedder |
| CN111152353B (en) * | 2020-03-18 | 2021-04-09 | 安徽龙钰徽派古建工艺制品有限公司 | Ancient building green tile brick carving shedder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181120 |