CN105346027A - Rotation thread unwinding mechanism - Google Patents
Rotation thread unwinding mechanism Download PDFInfo
- Publication number
- CN105346027A CN105346027A CN201510802716.8A CN201510802716A CN105346027A CN 105346027 A CN105346027 A CN 105346027A CN 201510802716 A CN201510802716 A CN 201510802716A CN 105346027 A CN105346027 A CN 105346027A
- Authority
- CN
- China
- Prior art keywords
- core
- mounting groove
- die body
- moving core
- groove
- 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
-
- 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
- B29C45/40—Removing or ejecting moulded articles
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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)
Abstract
The invention belongs to the technical field of injection-molding technologies, and particularly discloses a rotation thread unwinding mechanism. The rotation thread unwinding mechanism is arranged on a die of an injection-molding machine, the die comprises a fixed die body and a movable die body, a semi groove is formed in the right end of the fixed die body, and a semi groove is formed in the left end of the movable die body; after the movable die body and the fixed die body are oppositely combined, an injection-molding cavity is formed between the two semi grooves, a transversely-penetrating installation groove is formed inside the fixed die body, a guide sleeve is arranged in the installation groove in an interference fit manner, and a movable mold core is arranged inside the guide sleeve in a threaded fit manner; and a mold core gear is arranged on the external circle of the movable core, a movable driving rack perpendicular to the installation groove is arranged inside the fixed die body, and the driving rack is meshed with the mold core gear. By means of the rotation thread unwinding mechanism, the thread unwinding time of the threaded core is shortened, and the working efficiency is higher.
Description
Technical field
The invention belongs to injection molding technology field.
Background technology
Injection mold is a kind of instrument producing plasthetics, is also the instrument giving plasthetics complete structure and accurate dimension.Its occupation mode injects in the die cavity of injection mold by the material high pressure melted that is heated, and after cooling curing, obtains formed products.When existing moulding needs to manufacture screw thread, need to put into thread core in injection mold, after completing injection moulding, threaded moulding is deviate from.
But because threaded moulding and thread core are in the state of threaded engagement, so moulding will be deviate from need first to be exited along its screw thread rotation from injection molding cavity by thread core after die sinking, the mode of current thread core Leave out thread mainly adopts and manually turns thread core, thread core is exited from the threaded portion of moulding, the mode of this Leave out thread is consuming time longer, inefficiency.
Summary of the invention
The invention is intended to provide short, that operating efficiency is high rotation consuming time to move back thread mechanism.
Thread mechanism is moved back in rotation in this programme, be arranged on the mould of injection machine, this mould comprises fixed half and moving half, the right-hand member of cover half has half groove, the left end of dynamic model has half groove, dynamic model and cover half involutory after, form injection molding cavity between two and half grooves, described cover half inner transverse runs through mounting groove, in this mounting groove, interference fit has fairlead, and this fairlead is inner has moving core for threaded engagement; The cylindrical of described moving core is provided with core gear, cover half inside is provided with perpendicular to mounting groove and moveable initiatively tooth bar, and this is tooth bar and core gears meshing initiatively.
Beneficial effect: when after die sinking (dynamic model is away from cover half), initiatively the driving core gear of tooth bar rotates, thus whole moving core is rotated, due to moving core and fairlead threaded engagement, and fairlead is interference fitted on cover half, and fairlead can not rotate along with moving core, so the change of team certainly of moving core makes it move in fairlead, thus moving core exits in injection molding cavity, omnidistance without the need to artificial participation, what mechanical automation completed moving core moves back threaded process.Present invention reduces thread core move back the screw thread time, operating efficiency is higher.
Further, described moving core inner running through is provided with horizontal center push rod, and the left end of this push rod is fixedly connected with the push pedal of mounting groove outside, and after moving core completes and moves back screw thread work, center push rod moves and ejects moulding.
Further, the length of described moving core is less than the length of mounting groove, is convenient to moving core and moves in mounting groove.
Further, initiatively tooth bar is driven by straight-line feed motor, and initiatively tooth bar is rotated.
Further, center push rod and moving core matched in clearance, do not affect the position of moving core when center push rod moves.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention rotates the structural representation moving back thread mechanism.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: cover half 1, dynamic model 2, moving core 3, fairlead 4, core gear 5, initiatively tooth bar 6, center push rod 7, push pedal 8, injection molding cavity 9.
Embodiment rotates moves back thread mechanism substantially as shown in Figure 1: rotate and move back thread mechanism, be arranged on injection machine, this injection machine comprises cover half 1 and dynamic model 2, and the right-hand member of cover half 1 has half groove, the left end of dynamic model 2 has half groove, dynamic model 2 and cover half 1 involutory after, form injection molding cavity 9 between two and half grooves.
Cover half 1 inside has the mounting groove laterally running through cover half 1, and the right-hand member of this mounting groove communicates with injection molding cavity 9.Right part in this mounting groove is equipped with fairlead 4, the cylindrical of this fairlead 4 and mounting groove interference fit, and the endoporus of fairlead 4 is screwed hole.Moving core 3 is positioned at this mounting groove, and the length of moving core 3 is less than the length of mounting groove, and the right-hand member of moving core 3 is thread forming end, and this thread forming end can insert in injection molding cavity 9, for making the threaded portion of moulding.Position near thread forming end on moving core 3 has external screw thread, and the external screw thread of moving core 3 coordinates with fairlead 4 screwed hole, and moving core 3 is away from the left part spirogyrate forming core gear 5 in thread forming portion.
Cover half 1 has the rack bore communicated with mounting groove in the position perpendicular to mounting groove, be sliding combined with initiatively tooth bar 6 in this rack bore, this active tooth bar 6 engages with core gear 5, and initiatively tooth bar 6 is fixedly connected with by shaft coupling with the output of straight-line feed motor.Center push rod 7 is coaxially positioned at mounting groove, and the right-hand member of this center push rod 7 runs through moving core 3(center push rod 7 and moving core 3 matched in clearance), the left end of center push rod 7 adopts bolt to be fixedly connected with push pedal 8, and this push pedal 8 is connected with cylinder.
The course of work of the present embodiment is: when after die sinking (dynamic model 2 is away from cover half 1), initiatively the driving core gear 5 of tooth bar 6 rotates, thus whole moving core 3 is rotated, due to moving core 3 and fairlead 4 threaded engagement, and fairlead 4 is fixed on cover half 1, moving core 3 rotates and exits (thread forming portion exits moulding) from injection molding cavity 9; Now, push pedal 8 moves right, and center push rod 7 penetrates and ejected from injection molding cavity 9 by moulding from moving core 3.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (5)
1. rotate and move back thread mechanism, be arranged on the mould of injection machine, this mould comprises fixed half and moving half, the right-hand member of cover half has half groove, the left end of dynamic model has half groove, dynamic model and cover half involutory after, form injection molding cavity between two and half grooves, it is characterized in that, described cover half inner transverse runs through and is provided with mounting groove, and in this mounting groove, interference fit has fairlead, and this fairlead internal whorl is combined with moving core; The cylindrical of described moving core is provided with core gear, cover half inside is provided with perpendicular to mounting groove and moveable initiatively tooth bar, and this is tooth bar and core gears meshing initiatively.
2. thread mechanism is moved back in rotation according to claim 1, it is characterized in that: described moving core inner running through is provided with horizontal center push rod, and the left end of this center push rod is fixedly connected with the push pedal of mounting groove outside.
3. thread mechanism is moved back in rotation according to claim 2, it is characterized in that: the length of described moving core is less than the length of mounting groove.
4. thread mechanism is moved back in rotation according to claim 3, it is characterized in that: described active tooth bar is driven by straight-line feed motor.
5. thread mechanism is moved back in rotation according to claim 4, it is characterized in that: described center push rod and moving core matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802716.8A CN105346027A (en) | 2015-11-19 | 2015-11-19 | Rotation thread unwinding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802716.8A CN105346027A (en) | 2015-11-19 | 2015-11-19 | Rotation thread unwinding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105346027A true CN105346027A (en) | 2016-02-24 |
Family
ID=55322161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510802716.8A Pending CN105346027A (en) | 2015-11-19 | 2015-11-19 | Rotation thread unwinding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105346027A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748886A (en) * | 2018-06-04 | 2018-11-06 | 珠海格力精密模具有限公司 | A kind of injection mold |
| CN111251552A (en) * | 2020-03-25 | 2020-06-09 | 上海康德莱医疗器械自动化研究所有限公司 | Injection mold and injection molding machine thereof |
-
2015
- 2015-11-19 CN CN201510802716.8A patent/CN105346027A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748886A (en) * | 2018-06-04 | 2018-11-06 | 珠海格力精密模具有限公司 | A kind of injection mold |
| CN108748886B (en) * | 2018-06-04 | 2023-10-27 | 珠海格力精密模具有限公司 | Injection mold |
| CN111251552A (en) * | 2020-03-25 | 2020-06-09 | 上海康德莱医疗器械自动化研究所有限公司 | Injection mold and injection molding machine thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |