CN202462806U - Thread core pulling device capable of automatically resetting initial thread point - Google Patents
Thread core pulling device capable of automatically resetting initial thread point Download PDFInfo
- Publication number
- CN202462806U CN202462806U CN2012200837934U CN201220083793U CN202462806U CN 202462806 U CN202462806 U CN 202462806U CN 2012200837934 U CN2012200837934 U CN 2012200837934U CN 201220083793 U CN201220083793 U CN 201220083793U CN 202462806 U CN202462806 U CN 202462806U
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- gear
- thread
- tooth bar
- stroke switch
- thread core
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Abstract
The utility model provides a thread core pulling device capable of automatically resetting an initial thread point. The thread core pulling device comprises a screw (1), a thread core (11), a B gear (2), a nut sleeve (3), a transmission gear (4), an A gear (41), a rack (5), a limiting block (51), a resetting travel switch (6), a take-off travel switch (7) and an oil cylinder (8). During a demoulding process with the thread core pulling device, the rack is pushed by an oil cylinder, the rack drives the A gear to drive the coaxial transmission gear to rotate, and the transmission gear drives the screw to rotate through the B gear, so that a thread core is taken off from a product in a rotating core pulling manner; and in a resetting process, the oil cylinder drives the rack to retract, and the limiting block arranged on the rack triggers the resetting travel switch to stop the oil cylinder, so that the thread core is automatically reset. According to the thread core pulling device, the initial thread point can be positioned by adjusting the resetting travel switch, and can be automatically reset, so that the purposes of reducing labor and improving efficiency and qualified rate can be realized in injection molding production of thread injection molding dies, and the thread injection molding dies can be suitable for mass production..
Description
Technical field
The utility model relates to a kind of screw thread core-pulling device of injection mold, specifically is meant to be used for the automatically reset screw thread core-pulling device of a kind of screw thread starting point of screw thread injection mold that the injection mo(u)lding screw thread starting point has the screw thread based article of positioning requirements.
Background technology
The screw thread class injection-molded item of having relatively high expectations must adopt the spiral demoulding, and the spiral demoulding utilizes the motor or the oil motor that are located at the mould outside to rotate vertically through the screw thread rotation core that speed reduction gearing drives mould inside usually, deviates from the screw thread injection-molded item.After the demoulding, the orientation that the screw thread starting point of screw thread rotation core stops is arbitrarily, in order to guarantee the uniformity of injection-molded item screw thread starting point, just must before each matched moulds, the screw thread starting point of screw thread rotation core resetted.Resetting of prior art screw thread starting point, normally after the demoulding by manual work by specific purpose tool, rotation core body and elastic positioning pin butt reset the screw thread starting point of screw thread rotation core.There is the low and human negligence of efficient in the manual reset method, can not produce waste product if reset with regard to matched moulds, and in addition, necessary Attended mode and workload are big during production, the large-scale production requirement of incompatibility unmanned one people's multimachine.Therefore, prior art exists that workload is big, production efficiency is low, be prone to waste product, the problems and shortcomings that the incompatibility large-scale production requires.
Summary of the invention
Problems and shortcomings to above-mentioned prior art existence; The utility model adopts the device that is made up of screw rod, thread core, B gear, nut sleeve, travelling gear, A gear, tooth bar, limited block, return stroke switch, stripping stroke switch, oil cylinder; During the demoulding; Promoting tooth bar by oil cylinder stretches out; Rack drives A gear also drives coaxial travelling gear rotation, through the rotation of B gear driven screw rod the thread core that fixedly is located at the screw rod top is rotated by travelling gear from the internal thread goods and looses core; When resetting; Oil cylinder affects tooth bar withdrawal, touches and is located at the return stroke switch in the mould by being located at limited block on the tooth bar, and the magnetic valve through peripheral hardware is by oil cylinder; Make the automatically reset technical scheme of thread core; Provide a kind of screw thread starting point automatically reset screw thread core-pulling device, be intended to come the position of positioning threads starting point, and screw thread starting point can automatically reset when resetting through the relative position of adjustment limited block and return stroke switch; Make the injection moulding production of screw thread injection mold reach the minimizing recruitment, enhance productivity, improve product percent of pass, be fit to the purpose of the large-scale production requirement of unmanned one people's multimachine.
The purpose of the utility model is achieved in that the automatically reset screw thread core-pulling device of a kind of screw thread starting point; Comprise screw rod, thread core, B gear, nut sleeve, travelling gear, A gear, tooth bar, limited block, return stroke switch, stripping stroke switch, oil cylinder, wherein: described screw rod is that cylinder rod, cylinder are provided with externally threaded steel components; The top of screw rod is fixed with the thread core of the cylinder screw-shaped that is used for the moulded products internal thread; The said externally threaded pitch of screw rod equates with the pitch of said thread core; The bottom of screw rod is fixedly connected with the B gear of steel straight spur gear;
Described nut sleeve is the cylinder step bronze nut that central bore is provided with internal thread, and the said internal thread of nut sleeve and the external screw thread of screw rod are slidingly matched;
Described travelling gear and A gear are the steel straight spur gear with tandem shafts, and the external diameter of travelling gear is greater than the external diameter of A gear, travelling gear be positioned at the A gear above; The thickness of travelling gear is greater than the thickness of said B gear, and the difference of the thickness of the thickness of travelling gear and B gear equals the height of said thread core;
Described tooth bar is the rectangular rod steel components that a side is provided with the trapezoidal teeth that mesh with the A form of gear tooth, and the bottom right face of tooth bar is fixed with the limited block of the rectangular block shape steel of protrusion;
Described return stroke switch, stripping stroke switch are that single-wheel recovery formula is automatically touched electric switch;
The hydraulically extensible element of described oil cylinder for constituting by cylinder body and piston rod;
Mutual alignment and annexation
Nut sleeve vertically is fixedly connected in the moving platen, and screw rod upwards slides to screw and passes nut sleeve, thread core be positioned at dynamic mould core above; The B gear of screw rod lower end and travelling gear engagement; A wheel and rack engagement, travelling gear and A gear are rotatably connected on the bottom of dynamic model through rotating shaft, and tooth bar is arranged in the chute of the lower, transverse setting of dynamic model; Oil cylinder is fixedly connected on the right lateral surface of dynamic model through cylinder bracket, and the right-hand member of tooth bar is connected with the piston rod of oil cylinder; Return stroke switch and stripping stroke switch are below said chute, and wherein the stripping stroke switch is positioned at the left position of tooth bar, and the return stroke switch is positioned at the right positions of the said limited block in tooth bar the right on cylinder bracket; Above-mentioned, the folding direction of mould is called vertically, is called laterally with the direction of said vertical quadrature.
Operation principle and beneficial effect
During the demoulding, the piston rod of oil cylinder stretches out the promotion tooth bar and laterally is moved to the left, and rack drives A gear also drives coaxial travelling gear rotation; Travelling gear receives the guide effect of nut sleeve through the rotation of B gear driven screw rod, makes the thread core reverse synchronous rotation from the internal thread goods that fixedly is located at the screw rod top loose core downwards; At this moment; Limited block touches the stripping stroke switch, and the stripping stroke switch ends oil cylinder through the magnetic valve of peripheral hardware, and the piston rod of oil cylinder stops to stretch out; Thread core stops reverse being rotated down, and accomplishes and rotates the demoulding of loosing core;
When resetting, the piston rod of oil cylinder retraction affects tooth bar laterally to reset to the right, rack drives A gear, travelling gear, the rotation of B gear driven screw rod; Receive the guide effect of nut sleeve, the synchronous rotation of thread core forward is upwards resetted, at this moment; Limited block touches the return stroke switch, and the return stroke switch ends oil cylinder through the magnetic valve of peripheral hardware, and the piston rod of oil cylinder stops retraction; Thread core stops forward and rotates up, and realizes automatically reseting.
This device only needs the relative position of adjustment limited block and return stroke switch, i.e. the position location of the screw thread starting point of scalable thread core, and the screw thread starting point of thread core can automatically reset when resetting.
Above-mentioned; The utility model adopts the device that is made up of screw rod, thread core, B gear, nut sleeve, travelling gear, A gear, tooth bar, limited block, return stroke switch, stripping stroke switch, oil cylinder; During the demoulding; Promote tooth bar by oil cylinder and stretch out, rack drives A gear also drives coaxial travelling gear rotation, through the rotation of B gear driven screw rod the thread core that fixedly is located at the screw rod top is rotated by travelling gear from the internal thread goods and looses core; When resetting; Oil cylinder affects tooth bar withdrawal, touches and is located at the return stroke switch in the mould by being located at limited block on the tooth bar, and the magnetic valve through peripheral hardware is by oil cylinder; Make the automatically reset technical scheme of thread core; Overcome prior art and had that workload is big, production efficiency is low, be prone to waste product, the problems and shortcomings that the incompatibility large-scale production requires, the automatically reset screw thread core-pulling device of a kind of screw thread starting point that is provided; Relative position through adjustment limited block and return stroke switch comes the position of positioning threads starting point; And screw thread starting point can automatically reset when resetting, and makes the injection moulding production of screw thread injection mold reach the minimizing recruitment, enhances productivity, improves product percent of pass, is fit to the purpose of the large-scale production requirement of unmanned one people's multimachine.
Description of drawings
Fig. 1 is the structural representation of the automatically reset screw thread core-pulling device of a kind of screw thread starting point of the utility model;
Fig. 2 is the automatically reset screw thread core-pulling device of a kind of screw thread starting point of the utility model, is operated in the principle schematic of rotating the demoulding tense of loosing core.
Embodiment below in conjunction with in the accompanying drawing does further explain to the utility model, but should not be construed as any restriction to the utility model.
Among the figure: screw rod 1, thread core 11, B gear 2, nut sleeve 3, travelling gear 4, A gear 41, tooth bar 5, limited block 51, return stroke switch 6, stripping stroke switch 7, oil cylinder 8, knock-pin 01, push rod 02, internal thread goods 03, dynamic model 04, cover half 05, chute 06, cylinder bracket 07.
The specific embodiment
Consult Fig. 1; The automatically reset screw thread core-pulling device of a kind of screw thread starting point of the utility model; Comprise screw rod 1, thread core 11, B gear 2, nut sleeve 3, travelling gear 4, A gear 41, tooth bar 5, limited block 51, return stroke switch 6, stripping stroke switch 7, oil cylinder 8, wherein: described screw rod 1 is provided with externally threaded steel components for cylinder rod, cylinder; The top of screw rod 1 is fixed with the thread core 11 of the cylinder screw-shaped that is used for the moulded products internal thread; The said externally threaded pitch of screw rod 1 equates with the pitch of said thread core 11; The bottom of screw rod 1 is fixedly connected with the B gear 2 of steel straight spur gear;
Described nut sleeve 3 is provided with the cylinder step bronze nut of internal thread for central bore, and the said internal thread of nut sleeve 3 and the external screw thread of screw rod 1 are slidingly matched;
Described travelling gear 4 is the steel straight spur gear with tandem shafts with A gear 41, and the external diameter of travelling gear 4 is greater than the external diameter of A gear 41, travelling gear 4 be positioned at A gear 41 above; The thickness of travelling gear 4 is greater than the thickness of said B gear 2, and the difference of the thickness of the thickness of travelling gear 4 and B gear 2 equals the height of said thread core 11;
Described tooth bar 5 is the rectangular rod steel components that a side is provided with the trapezoidal teeth that mesh with A gear 41 profiles of tooth, and the bottom right face of tooth bar 5 is fixed with the limited block 51 of the rectangular block shape steel of protrusion;
Described return stroke switch 6, stripping stroke switch 7 touch electric switch for single-wheel recovery formula automatically;
The hydraulically extensible element of described oil cylinder 8 for constituting by cylinder body and piston rod;
Mutual alignment and annexation
Operation principle and beneficial effect
During the demoulding, the piston rod of oil cylinder 8 stretches out promotion tooth bar 5 and laterally is moved to the left, and tooth bar 5 drives A gears 41 and also drives 4 rotations of coaxial travelling gear; Travelling gear 4 drives screw rod 1 rotation through B gear 2, receives the guide effect of nut sleeve 3, makes the thread core 11 reverse synchronous rotation from internal thread goods 03 that fixedly is located at screw rod 1 top loose core downwards; At this moment; Limited block 51 touches stripping stroke switch 7, and stripping stroke switch 7 ends oil cylinder 8 through the magnetic valve of peripheral hardware, and the piston rod of oil cylinder 8 stops to stretch out; Thread core 11 stops reverse being rotated down, and accomplishes and rotates the demoulding of loosing core;
When resetting, the piston rod of oil cylinder 8 retraction affects tooth bar 5 laterally to reset to the right, and tooth bar 5 drives A gear 41, travelling gear 4,1 rotation of B gear 2 drive screw rods; Receive the guide effect of nut sleeve 3, the synchronous rotation of thread core 11 forwards is upwards resetted, at this moment; Limited block 51 touches return stroke switch 6, and return stroke switch 6 ends oil cylinder 8 through the magnetic valve of peripheral hardware, and the piston rod of oil cylinder 8 stops retraction; Thread core 11 stops forward and rotates up, and realizes automatically reseting.
This device only needs the relative position of adjustment limited block 51 and return stroke switch 6, i.e. the position location of the screw thread starting point of scalable thread core 11, and the screw thread starting point of thread core 11 can automatically reset when resetting.
Claims (1)
1. automatically reset screw thread core-pulling device of screw thread starting point; It is characterized in that: comprise screw rod (1), thread core (11), B gear (2), nut sleeve (3), travelling gear (4), A gear (41), tooth bar (5), limited block (51), return stroke switch (6), stripping stroke switch (7), oil cylinder (8), described screw rod (1) is that cylinder rod, cylinder are provided with externally threaded steel components; The top of screw rod (1) is fixed with the thread core (11) of the cylinder screw-shaped that is used for the moulded products internal thread; The said externally threaded pitch of screw rod (1) equates with the pitch of said thread core (11); The bottom of screw rod (1) is fixedly connected with the B gear (2) of steel straight spur gear;
Described nut sleeve (3) is provided with the cylinder step bronze nut of internal thread for central bore, and the external screw thread of the said internal thread of nut sleeve (3) and screw rod (1) is slidingly matched;
Described travelling gear (4) and A gear (41) are the steel straight spur gear with tandem shafts, and the external diameter of travelling gear (4) is greater than the external diameter of A gear (41), travelling gear (4) be positioned at A gear (41) above; The thickness of travelling gear (4) is greater than the thickness of said B gear (2), and the difference of the thickness of the thickness of travelling gear (4) and B gear (2) equals the height of said thread core (11);
Described tooth bar (5) is the rectangular rod steel components that a side is provided with the trapezoidal teeth that mesh with A gear (41) profile of tooth, and the bottom right face of tooth bar (5) is fixed with the limited block (51) of the rectangular block shape steel of protrusion;
Described return stroke switch (6), stripping stroke switch (7) touch electric switch for single-wheel recovery formula automatically;
The hydraulically extensible element of described oil cylinder (8) for constituting by cylinder body and piston rod;
Nut sleeve (3) vertically is fixedly connected in the moving platen; Screw rod (1) upwards slides to screw and passes nut sleeve (3); Thread core (11) be positioned at dynamic mould core above, the engagement of the B gear (2) of screw rod (1) lower end and travelling gear (4), A gear (41) and tooth bar (5) engagement; Travelling gear (4) and A gear (41) are rotatably connected on the bottom of dynamic model through rotating shaft; Tooth bar (5) is arranged in the chute (06) that the lower, transverse of dynamic model is provided with, and oil cylinder (8) is fixedly connected on the right lateral surface of dynamic model through cylinder bracket (07), and the right-hand member of tooth bar (5) is connected with the piston rod of oil cylinder (8); Return stroke switch (6) and stripping stroke switch (7) are in the below of said chute (06); Wherein, Stripping stroke switch (7) is positioned at the left position of tooth bar (5), and return stroke switch (6) is positioned at the right positions of tooth bar (5) the said limited block in the right (51) on cylinder bracket (07); Above-mentioned, the folding direction of mould is called vertically, is called laterally with the direction of said vertical quadrature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200837934U CN202462806U (en) | 2012-02-26 | 2012-02-26 | Thread core pulling device capable of automatically resetting initial thread point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200837934U CN202462806U (en) | 2012-02-26 | 2012-02-26 | Thread core pulling device capable of automatically resetting initial thread point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202462806U true CN202462806U (en) | 2012-10-03 |
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ID=46910998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200837934U Withdrawn - After Issue CN202462806U (en) | 2012-02-26 | 2012-02-26 | Thread core pulling device capable of automatically resetting initial thread point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202462806U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601933A (en) * | 2012-02-26 | 2012-07-25 | 宁波思迈工业科技有限公司 | Threaded core pulling device with automatically reset thread starting point |
| CN103341956B (en) * | 2013-06-24 | 2015-05-20 | 宁波方正汽车模具有限公司 | External stroke limit device with built-in core pulling oil cylinder |
| CN105666810A (en) * | 2016-03-24 | 2016-06-15 | 珠海格力大金精密模具有限公司 | Injection mould for thin-walled product |
| CN109955441A (en) * | 2019-03-26 | 2019-07-02 | 天津原谷科技有限公司 | A kind of boot strut mold with mould external position device |
| CN112191823A (en) * | 2020-11-17 | 2021-01-08 | 阜阳市世科智能设备有限公司 | Novel die casting die of die-casting mechanism |
| CN113561374A (en) * | 2021-08-02 | 2021-10-29 | 深圳市羽利美科技有限公司 | Automatic precision spare mould of drawing of patterns |
-
2012
- 2012-02-26 CN CN2012200837934U patent/CN202462806U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601933A (en) * | 2012-02-26 | 2012-07-25 | 宁波思迈工业科技有限公司 | Threaded core pulling device with automatically reset thread starting point |
| CN102601933B (en) * | 2012-02-26 | 2014-09-24 | 宁波思迈工业科技有限公司 | Threaded core pulling device with automatically reset thread starting point |
| CN103341956B (en) * | 2013-06-24 | 2015-05-20 | 宁波方正汽车模具有限公司 | External stroke limit device with built-in core pulling oil cylinder |
| CN105666810A (en) * | 2016-03-24 | 2016-06-15 | 珠海格力大金精密模具有限公司 | Injection mould for thin-walled product |
| CN109955441A (en) * | 2019-03-26 | 2019-07-02 | 天津原谷科技有限公司 | A kind of boot strut mold with mould external position device |
| CN109955441B (en) * | 2019-03-26 | 2020-11-17 | 天津原谷科技有限公司 | Trunk support rod die with external die positioning device |
| CN112191823A (en) * | 2020-11-17 | 2021-01-08 | 阜阳市世科智能设备有限公司 | Novel die casting die of die-casting mechanism |
| CN112191823B (en) * | 2020-11-17 | 2021-07-27 | 阜阳市世科智能设备有限公司 | Novel die casting die of die-casting mechanism |
| CN113561374A (en) * | 2021-08-02 | 2021-10-29 | 深圳市羽利美科技有限公司 | Automatic precision spare mould of drawing of patterns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140924 |
|
| RGAV | Abandon patent right to avoid regrant |