CN204700272U - A kind of rack-and-pinion takes out the mould of screw thread - Google Patents
A kind of rack-and-pinion takes out the mould of screw thread Download PDFInfo
- Publication number
- CN204700272U CN204700272U CN201520276856.1U CN201520276856U CN204700272U CN 204700272 U CN204700272 U CN 204700272U CN 201520276856 U CN201520276856 U CN 201520276856U CN 204700272 U CN204700272 U CN 204700272U
- Authority
- CN
- China
- Prior art keywords
- thread
- core
- screw
- mould
- plate
- 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.)
- Expired - Fee Related
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A kind of rack-and-pinion takes out the mould of screw thread, described push rod (4) when matched moulds and the bottom surface of goods (17) be close to, the step end of push rod (4) is arranged in the stepped hole of ejector retainner plate (3), thimble backing plate (6) and ejector retainner plate (3) the 3rd screw (2) are fastenedly connected, the side opening of described rear pattern plate (5) is provided with stepped hole, thread bush (22) is installed in stepped hole, thread core (12) is installed in described thread bush (22), the small end of described thread core (12) is provided with screw thread, thread core (12) middle part is provided with gear (13), described gear (13) is communicated with key is fastening with thread core (12), the screw thread set by large end of thread core (12) becomes to be connected with a joggle with the screw thread in thread bush (22), the lower plane of described rear pattern plate (5) is provided with screwed hole, stop screw (20) is installed in set screw thread.
Description
Technical field
The present invention relates to the side core-pulling mechanism of metal die-casting mold and plastic injection mould, is the mould that a kind of rack-and-pinion takes out screw thread.
Background technology
At present, at Making mold circle, following several version is had with the core-pulling mechanism of screwed hole: 1. hand-operated core pulling mechanism for goods side, it is the side mounting handle at mould, handle is communicated with the thread core in moulded products flank threads hole, thread core is equipped with rolling bearing, after mould is opened, thread core is driven to extract out from the side of goods by artificial swinging handle, then by ejecting mechanism outside goods launch mode, during matched moulds, that mould dynamic model part and cover half part first close, and then make thread core reset to shaping situation by artificial swinging handle.This mold mechanism is simple, and Making mold is convenient, but production efficiency is extremely low, and labor strength is large, is not suitable for producing in enormous quantities.2. motor core-pulling mechanism, it installs motor at the side core-pulling of mould, is then connected with motor by thread core, is to utilize the clockwise and reversion of motor to realize the screwed hole of goods side and the disengaging of thread core and shaping during folding mould.This core-pulling mechanism Core-pulling force is large, and action is solid and reliable, but mould structure is complicated, and the auxiliary component of mould is more, and Making mold, installation, debugging, inconvenient maintenance, die cost is high.In order to overcome the defect of above-mentioned mold mechanism, spy provides following a kind of flank threads core-pulling die mechanism to solve problem.
Summary of the invention
The present invention is to provide the mould that a kind of rack-and-pinion takes out screw thread, and because the sidewall of goods (17) has tapped through hole, the mechanism of screw thread is taken out in a kind of side arranged to simplify mold mechanism.It utilizes the tooth bar (7) be arranged in mould front template (21) when die sinking, the gear (13) that drive is arranged on thread core (12) rotates, the rotarily driving of gear (13) be arranged on thread core (12) in thread bush (22) threadingly the helical rotation of overlapping in (22) exit to mould lateral direction, so the rotation of the moulding section in thread core (12) moulded products (17) sidewall thread hole along with thread core (12), rotate the screwed hole from goods (17) and exit; After goods (17) and thread core (12) separate, by push rod (4) by goods (17) from the die cavity of moving platen (5) outside launch mode.Rack-and-pinion takes out a mould for screw thread, solves hand-operated core pulling mechanism, and labor strength is large, the problem that production efficiency is low.Solve motor core-pulling mechanism, mould structure is complicated, and die cost is high, the problem of Making mold, installation, debugging, inconvenient maintenance.A kind of rack-and-pinion takes out the mould of screw thread, its beneficial effect is: it is of value to when die cast metal mould and plastic injection mould side are threaded and uses, this mechanism simplifying mold mechanism, die manufacturing cost is reduced, be of value to simultaneously and alleviate labor strength, the effect of enhancing productivity.In addition, it also has following beneficial effect, because its organization establishes is at mould inside, because this reducing the volume of mould, provides cost savings, and mould appearance is graceful; Its mechanism adopts rigid material simultaneously, and in action is carried out, do not have elastic deformation and relaxation, whole course of action precision is high, and therefore quality of item is protected, and die life is long.A kind of rack-and-pinion takes out the mould of screw thread, it is characterized in that: it is made up of front mould and rear mold two parts, its front mould is by sprue bush (15), first screw (14), front mould seat board (18), front template (21), tooth bar (7), core (16), second screw (19) is formed, the centre bore of described front mould seat board (18) is provided with sprue bush (15), front mould seat board (18) below is provided with front template (21), front template (21) is provided with tooth bar (7) and core (16), front template (21) is communicated with the second screw (19) is fastening with front mould seat board (18), described tooth bar (7) inserts in the upper through hole arranged of rear pattern plate (5) when matched moulds, tooth bar (7) becomes to engage shape with gear (13) and is connected in the upper through hole arranged of rear pattern plate (5), described core (16) becomes matched in clearance with front template (21), the front end of core (16) is inserted in the forming recess of rear pattern plate (5), during matched moulds, the side of core (16) and the end face of thread core (12) are close to the screw thread forming goods (17) and are touched and wear position, this mould rear mold is by rear pattern plate (5), thread core (12), gear (13), thread bush (22), support plate (1), rear mold seat board (9), push rod (4), 3rd screw (2), ejector retainner plate (3), thimble backing plate (6), banking pin (20) is formed, described rear pattern plate (5) is provided with the forming cavity of moulded products (17), a through hole is provided with bottom described forming cavity, push rod (4) is installed in described through hole, described push rod (4) when matched moulds and the bottom surface of goods (17) be close to, the step end of push rod (4) is arranged in the stepped hole of ejector retainner plate (3), the below of ejector retainner plate (3) is provided with thimble backing plate (6), thimble backing plate (6) and ejector retainner plate (3) the 3rd screw (2) are fastenedly connected, the side opening of described rear pattern plate (5) is provided with stepped hole, thread bush (22) is installed in stepped hole, thread core (12) is installed in described thread bush (22), the small end of described thread core (12) is provided with screw thread, thread core (12) middle part is provided with gear (13), described gear (13) is communicated with key is fastening with thread core (12), the screw thread set by large end of thread core (12) becomes to be connected with a joggle with the screw thread in thread bush (22), the lower plane of described rear pattern plate (5) is provided with screwed hole, stop screw (20) is installed in set screw thread, described stop screw (20) is fixed on thread bush (22) in the stepped hole of rear pattern plate (5) side.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described
Shown in figure
Sectional side elevation when Fig. 1 is the cast of mould matched moulds
Fig. 2 is the sectional side elevation of mould die sinking situation
In figure, numeral number represents respectively:
1---support plate 2---the 3rd screw 3---ejector retainner plate
4---push rod 5---rear pattern plate 6---thimble backing plates
7---tooth bar 9---rear mold seat board 12---thread cores
13---gear 14---first screw 15---sprue bush
16---core 17---goods 18---front mould seat boards
19---second screw 20---banking pin
Forming thread position on A---thread core (12)
The connecting thread position of B---thread core (12) rear end
Detailed description of the invention:
The mould that a kind of rack-and-pinion takes out screw thread as shown in the figure, during mould die sinking, utilize the tooth bar (7) being arranged on front mould one side to drive the gear (13) be arranged on thread core (12) to rotate, drive the screw thread at the shaping position of thread core (12) to extract out from the screwed hole of goods (17), complete the action of loosing core in goods (17) flank threads hole.Its operating principle is as follows: when mould is arranged on injector or die casting machine, through moulding by casting, pressurize feeding, after cooling and shaping, injector or die casting machine driven mold rear mold part move, in the process of this movement, gear (13) above rotates while make the translation motion of mould lateral direction at tooth bar (7), due to the action of gear (13), exit so the forming thread position of thread core (12) small end rotates from the screwed hole of goods (17), simultaneously, the connecting thread position that thread core (12) is held greatly is also exited around threads turn with being rotated in thread bush (22) of gear (13) outside mould, after the thread forming position of thread core (12) is all exited from the screwed hole of goods (17), at this moment injector or die casting machine push rod promote thimble backing plate (6) and drive push rod (4) goods (17) from the die cavity of rear pattern plate (5) outside launch mode.During matched moulds, when die sinking done by mould, contrary action completes reset, first be that tooth bar (7) contacts with gear (13), continue matched moulds, tooth bar (7) driven gear (13) rotates spinning movement contrary when making its thread core (12) be arranged on gear (13) do die sinking and resets.After respectively opening profile and resetting completely, injector just carries out the moulding by casting in next cycle.
Claims (1)
1. a rack-and-pinion takes out the mould of screw thread, it is characterized in that: it is made up of front mould and rear mold two parts, its front mould is by sprue bush (15), first screw (14), front mould seat board (18), front template (21), tooth bar (7), core (16), second screw (19) is formed, the centre bore of described front mould seat board (18) is provided with sprue bush (15), front mould seat board (18) below is provided with front template (21), front template (21) is provided with tooth bar (7) and core (16), front template (21) is communicated with the second screw (19) is fastening with front mould seat board (18), described tooth bar (7) inserts in the upper through hole arranged of rear pattern plate (5) when matched moulds, tooth bar (7) becomes to engage shape with gear (13) and is connected in the upper through hole arranged of rear pattern plate (5), described core (16) becomes matched in clearance with front template (21), the front end of core (16) is inserted in the forming recess of rear pattern plate (5), during matched moulds, the side of core (16) and the end face of thread core (12) are close to the screw thread forming goods (17) and are touched and wear position, this mould rear mold is by rear pattern plate (5), thread core (12), gear (13), thread bush (22), support plate (1), rear mold seat board (9), push rod (4), 3rd screw (2), ejector retainner plate (3), thimble backing plate (6), banking pin (20) is formed, described rear pattern plate (5) is provided with the forming cavity of moulded products (17), a through hole is provided with bottom described forming cavity, push rod (4) is installed in described through hole, described push rod (4) when matched moulds and the bottom surface of goods (17) be close to, the step end of push rod (4) is arranged in the stepped hole of ejector retainner plate (3), the below of ejector retainner plate (3) is provided with thimble backing plate (6), thimble backing plate (6) and ejector retainner plate (3) the 3rd screw (2) are fastenedly connected, the side opening of described rear pattern plate (5) is provided with stepped hole, thread bush (22) is installed in stepped hole, thread core (12) is installed in described thread bush (22), the small end of described thread core (12) is provided with screw thread, thread core (12) middle part is provided with gear (13), described gear (13) is communicated with key is fastening with thread core (12), the screw thread set by large end of thread core (12) becomes to be connected with a joggle with the screw thread in thread bush (22), the lower plane of described rear pattern plate (5) is provided with screwed hole, stop screw (20) is installed in set screw thread, described stop screw (20) is fixed on thread bush (22) in the stepped hole of rear pattern plate (5) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276856.1U CN204700272U (en) | 2015-04-25 | 2015-04-25 | A kind of rack-and-pinion takes out the mould of screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276856.1U CN204700272U (en) | 2015-04-25 | 2015-04-25 | A kind of rack-and-pinion takes out the mould of screw thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204700272U true CN204700272U (en) | 2015-10-14 |
Family
ID=54279908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520276856.1U Expired - Fee Related CN204700272U (en) | 2015-04-25 | 2015-04-25 | A kind of rack-and-pinion takes out the mould of screw thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204700272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415589A (en) * | 2016-01-07 | 2016-03-23 | 东莞市凯融塑胶五金科技有限公司 | Novel optical mold |
-
2015
- 2015-04-25 CN CN201520276856.1U patent/CN204700272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415589A (en) * | 2016-01-07 | 2016-03-23 | 东莞市凯融塑胶五金科技有限公司 | Novel optical mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102101350B (en) | Precision mold for small-spiral-angle duplex gear | |
| CN205651616U (en) | Trilateral mould structure of loosing core | |
| CN208543761U (en) | A kind of mold convenient for bottle cap screw thread depanning | |
| CN201439244U (en) | Straight eject loose core mechanism of mould | |
| CN202498695U (en) | Mold mechanism with side parting core pulling | |
| CN201427372Y (en) | Obliquely-ejecting structure of die | |
| CN204700272U (en) | A kind of rack-and-pinion takes out the mould of screw thread | |
| CN106945239B (en) | Electric vehicle pedal injection mold | |
| CN205167442U (en) | Rack and pinion type side injection mold of loosing core | |
| CN205439094U (en) | Slide wedge drives mold machine of loosing core slider inboard to be constructed | |
| CN202498694U (en) | Oblique guide pillar incomplete core-pulling mould mechanism | |
| CN205167406U (en) | Two die joint injection moulds of guide pillar distance formula | |
| CN207915937U (en) | A kind of mold insert replacement structure of injection mold | |
| CN204869509U (en) | Easily trade formula taper pin device | |
| CN204075142U (en) | Metal convex-concave housing component die-casting forming die | |
| CN207156348U (en) | The mold mechanism that sliding block turns to | |
| CN202498700U (en) | Mold structure of step parting and push rod pushing | |
| CN108081552B (en) | Plastic gear injection mold | |
| CN105029970B (en) | Flowerpot rack handle and the injection mold for manufacturing the flowerpot rack handle | |
| CN210651712U (en) | Rotary core-pulling and demolding mold structure | |
| CN203092973U (en) | Ejecting mechanism | |
| CN208930646U (en) | A kind of slide block structure of auxiliary ejection | |
| CN208359363U (en) | A kind of spiral mold insert makees the mold of cooling water channel | |
| CN203063069U (en) | Multi-cavity injection mould for circular cover | |
| CN207889063U (en) | A kind of accurate rapid forming mold with mould tapping mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160425 |