CN102601933B - Threaded core pulling device with automatically reset thread starting point - Google Patents
Threaded core pulling device with automatically reset thread starting point Download PDFInfo
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- CN102601933B CN102601933B CN201210059143.0A CN201210059143A CN102601933B CN 102601933 B CN102601933 B CN 102601933B CN 201210059143 A CN201210059143 A CN 201210059143A CN 102601933 B CN102601933 B CN 102601933B
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- tooth bar
- oil cylinder
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Abstract
The invention provides a threaded core pulling device with an automatically reset thread starting point, comprising a screw rod (1), a threaded mold core (11), a B gear (2), a nut sleeve (3), a transmission gear (4), an A gear (41), a rack (5), a limit block (51), a reset travel switch (6), a removing travel switch (7) and an oil cylinder (8). When the threaded core pulling device demolds, the oil cylinder drives the rack, the rack drives the A gear and drives the coaxial transmission gear to rotate, and the transmission gear drives the screw rod to rotate through the B gear so that the threaded mold core rotates, loosens and remove a core from a product; and when the threaded core pulling device is reset, the oil cylinder drives the rack to retract, the limit block arranged on the rack triggers the reset travel switch to stop the oil cylinder, and the threaded mold core automatically resets. According to the threaded core pulling device with the automatically reset thread starting point, disclosed by the invention, the thread starting point is located and can automatically reset by regulating the reset travel switch so that the purposes of reducing labors, improving efficiency and yield and being suitable for large-scale production are realized during injection molding production of thread injection molds.
Description
Technical field
The present invention relates to a kind of screw thread core pulling device of injection mold, specifically refer to the automatically reset screw thread core pulling device of a kind of screw thread starting point of screw thread injection mold that has the screw thread based article of positioning requirements for injection mo(u)lding screw thread starting point.
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 mould outside to drive the screw thread rotation core of mould inside to rotate vertically through speed reduction gearing conventionally, deviates from 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 be resetted.The reset of prior art screw thread starting point, normally after the demoulding by manually 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 efficiency in manual reset method, if reset, with regard to matched moulds, can not produce waste product, in addition, must Attended mode during production and workload large, be not suitable with the large-scale production requirement of unmanned one people's multimachine.Therefore, prior art exists that workload is large, production efficiency is low, easily go out waste product, is not suitable with the problems and shortcomings of large-scale production requirement.
Summary of the invention
The problems and shortcomings that exist for above-mentioned prior art, the present invention adopts the device consisting of screw rod, thread core, B gear, nut sleeve, travelling gear, A gear, tooth bar, limited block, reset stroke switch, stripping stroke switch, oil cylinder, during the demoulding, by oil cylinder pushing tooth bar, stretched out, rack drives A gear also drives coaxial travelling gear rotation, by travelling gear, through the rotation of B gear driven screw rod, the thread core rotary core pulling from internal-thread product that is fixedly located at screw rod top is deviate from, during reset, oil cylinder affects tooth bar to retract, by the limited block shake-up being located on tooth bar, be located at the reset stroke switch in mould, by the magnetic valve cut-off oil cylinder of peripheral hardware, 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 by adjusting the relative position of limited block and reset stroke switch the position of positioning threads starting point, and while resetting, screw thread starting point can automatically reset, make the injection moulding production of screw thread injection mold reach minimizing recruitment, enhance productivity, improve product percent of pass, the object that is applicable to the large-scale production requirement of unmanned one people's multimachine.
The object of the present invention is achieved like this: 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, reset stroke switch, deviate from travel 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 for the cylinder screw-shaped of moulded products internal thread; The described externally threaded pitch of screw rod equates with the pitch of described thread core; The bottom of screw rod is fixedly connected with the B gear of steel straight spur gear;
Centered by described nut sleeve, endoporus is established female cylinder step bronze nut, and the described internal thread of nut sleeve and the external screw thread of screw rod are slidably matched;
The steel straight spur gear that described travelling gear and A gear are same tandem shafts, the external diameter of travelling gear is greater than the external diameter that A gear is greater than, travelling gear be positioned at A gear above; The thickness of travelling gear is greater than the thickness of described B gear, and the difference of the thickness of the thickness of travelling gear and B gear equals the height of described 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 reset stroke switch, stripping stroke switch are that single-wheel recovers formula type touching switch automatically;
The hydraulically extensible element of described oil cylinder for being formed by cylinder body and piston rod;
Mutual alignment and annexation
Nut sleeve is longitudinally fixedly connected in moving platen, screw rod upward sliding screws through nut sleeve, thread core be positioned at dynamic mould core above, the B gear of screw rod lower end and travelling gear engagement, the engagement of A wheel and rack, travelling gear and A gear are rotatably connected on the bottom of dynamic model by 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 outside side of dynamic model by cylinder bracket, the right-hand member of tooth bar is connected with the piston rod of oil cylinder; Reset stroke switch and stripping stroke switch are below described chute, and wherein stripping stroke switch is positioned at the left position of tooth bar, and reset stroke switch is positioned at the right positions of the described limited block in tooth bar the right on cylinder bracket; Above-mentioned, the folding direction of mould is called longitudinally, is called laterally with the direction of described longitudinal quadrature.
Operation principle and beneficial effect
During the demoulding, the piston rod of oil cylinder stretches out promotion tooth bar and is laterally moved to the left, rack drives A gear also drives coaxial travelling gear rotation, travelling gear rotates through B gear driven screw rod, be subject to the guide effect of nut sleeve, make the thread core reverse synchronous rotary from internal-thread product that is fixedly located at screw rod top loose core downwards, now, limited block touches stripping stroke switch, stripping stroke switch is by the magnetic valve cut-off oil cylinder of peripheral hardware, the piston rod of oil cylinder stops stretching out, and thread core stops reverse being rotated down, and completes the rotary core pulling demoulding;
During reset, the piston rod retraction of oil cylinder affects tooth bar laterally to reset to the right, rack drives A gear, travelling gear, the rotation of B gear driven screw rod, be subject to the guide effect of nut sleeve, and thread core forward synchronous rotary is upwards resetted, now, limited block touches reset stroke switch, and reset stroke switch is by the magnetic valve cut-off oil cylinder of peripheral hardware, and the piston rod of oil cylinder stops retraction, thread core stops forward and rotates up, and realization automatically resets.
This device only needs to adjust the relative position of limited block and reset stroke switch, i.e. during the position location of the screw thread starting point of adjustable thread core, and reset, the screw thread starting point of thread core can automatically reset.
Above-mentioned, the present invention adopts the device consisting of screw rod, thread core, B gear, nut sleeve, travelling gear, A gear, tooth bar, limited block, reset stroke switch, stripping stroke switch, oil cylinder, during the demoulding, by oil cylinder pushing tooth bar, stretched out, rack drives A gear also drives coaxial travelling gear rotation, by travelling gear, through the rotation of B gear driven screw rod, the thread core rotary core pulling from internal-thread product that is fixedly located at screw rod top is deviate from, during reset, oil cylinder affects tooth bar to retract, by the limited block shake-up being located on tooth bar, be located at the reset stroke switch in mould, by the magnetic valve cut-off oil cylinder of peripheral hardware, make the automatically reset technical scheme of thread core, having overcome prior art exists workload large, production efficiency is low, easily go out waste product, be not suitable with the problems and shortcomings of large-scale production requirement, the automatically reset screw thread core pulling device of a kind of screw thread starting point providing, by adjusting the relative position of limited block and reset stroke switch, come the position of positioning threads starting point, and while resetting, screw thread starting point can automatically reset, make the injection moulding production of screw thread injection mold reach minimizing recruitment, enhance productivity, improve product percent of pass, the object that is applicable to the large-scale production requirement of unmanned one people's multimachine.
Accompanying drawing explanation
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 present invention;
Fig. 2 is the automatically reset screw thread core pulling device of a kind of screw thread starting point of the present invention, is operated in the principle schematic of rotary core pulling demoulding tense.
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In 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, reset stroke switch 6, stripping stroke switch 7, oil cylinder 8, knock-pin 01, push rod 02, internal-thread product 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 present invention, 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, reset stroke switch 6, deviate from travel switch 7, oil cylinder 8, wherein: 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 for the cylinder screw-shaped of moulded products internal thread; The described externally threaded pitch of screw rod 1 equates with the pitch of described thread core 11; The bottom of screw rod 1 is fixedly connected with the B gear 2 of steel straight spur gear;
Centered by described nut sleeve 3, endoporus is established female cylinder step bronze nut, and the described internal thread of nut sleeve 3 and the external screw thread of screw rod 1 are slidably matched;
The steel straight spur gear that described travelling gear 4 and A gear 41 are same tandem shafts, the external diameter of travelling gear 4 is greater than the external diameter that A gear 41 is greater than, travelling gear 4 be positioned at A gear 41 above; The thickness of travelling gear 4 is greater than the thickness of described B gear 2, and the difference of the thickness of the thickness of travelling gear 4 and B gear 2 equals the height of described 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 reset stroke switch 6, stripping stroke switch 7 recover formula type touching switch automatically for single-wheel;
The hydraulically extensible element of described oil cylinder 8 for being formed by cylinder body and piston rod;
Mutual alignment and annexation
Nut sleeve 3 is longitudinally fixedly connected in moving platen, screw rod 1 upward sliding screws through nut sleeve 3, thread core 11 be positioned at dynamic mould core above, the B gear 2 of screw rod 1 lower end and travelling gear 4 engagements, A gear 41 and tooth bar 5 engagements, travelling gear 4 is rotatably connected on the bottom of dynamic model with A gear 41 by rotating shaft, tooth bar 5 is arranged in the chute 06 of the lower, transverse setting of dynamic model, oil cylinder 8 is fixedly connected on the right outside side of dynamic model by cylinder bracket 07, the right-hand member of tooth bar 5 is connected with the piston rod of oil cylinder 8; Reset stroke switch 6 and stripping stroke switch 7 are below described chute 06, and wherein stripping stroke switch 7 is positioned at the left position of tooth bar 5, and reset stroke switch 6 is positioned at the right positions of the tooth bar 5 described limited blocks 51 in the right on cylinder bracket 07; Above-mentioned, the folding direction of mould is called longitudinally, is called laterally with the direction of described longitudinal quadrature.
Operation principle and beneficial effect
During the demoulding, the piston rod of oil cylinder 8 stretches out promotion tooth bar 5 and is laterally moved to the left, tooth bar 5 drives A gear 41 and drives 4 rotations of coaxial travelling gear, travelling gear 4 drives screw rod 1 rotation through B gear 2, be subject to the guide effect of nut sleeve 3, make the thread core 11 reverse synchronous rotary from internal-thread product 03 that is fixedly located at screw rod 1 top loose core downwards, now, limited block 51 touches stripping stroke switch 7, stripping stroke switch 7 is by the magnetic valve cut-off oil cylinder 8 of peripheral hardware, the piston rod of oil cylinder 8 stops stretching out, thread core 11 stops reverse being rotated down, complete the rotary core pulling demoulding,
During reset, the piston rod retraction of oil cylinder 8 affects tooth bar 5 laterally to reset to the right, tooth bar 5 drives A gear 41, travelling gear 4, B gear 2 to drive screw rod 1 rotation, is subject to the guide effect of nut sleeve 3, and thread core 11 forward synchronous rotaries are upwards resetted, now, limited block 51 touches reset stroke switch 6, and reset stroke switch 6 is by the magnetic valve cut-off oil cylinder 8 of peripheral hardware, and the piston rod of oil cylinder 8 stops retraction, thread core 11 stops forward and rotates up, and realization automatically resets.
This device only needs to adjust the relative position of limited block 51 and reset stroke switch 6, i.e. during the position location of the screw thread starting point of adjustable thread core 11, and reset, the screw thread starting point of thread core 11 can automatically reset.
Claims (1)
1. the 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), reset stroke switch (6), deviate from travel 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) for the cylinder screw-shaped of moulded products internal thread; The described externally threaded pitch of screw rod (1) equates with the pitch of described thread core (11); The bottom of screw rod (1) is fixedly connected with the B gear (2) of steel straight spur gear;
Centered by described nut sleeve (3), endoporus is established female cylinder step bronze nut, and the external screw thread of the described internal thread of nut sleeve (3) and screw rod (1) is slidably matched;
The steel straight spur gear that described travelling gear (4) and A gear (41) are same tandem shafts, 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 described B gear (2), and the difference of the thickness of the thickness of travelling gear (4) and B gear (2) equals the height of described 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 reset stroke switch (6), stripping stroke switch (7) recover formula type touching switch automatically for single-wheel;
The hydraulically extensible element of described oil cylinder (8) for being formed by cylinder body and piston rod;
Nut sleeve (3) is longitudinally fixedly connected in moving platen, screw rod (1) upward sliding screws through nut sleeve (3), thread core (11) be positioned at dynamic mould core above, the B gear (2) of screw rod (1) lower end and travelling gear (4) engagement, A gear (41) and tooth bar (5) engagement, travelling gear (4) is rotatably connected on the bottom of dynamic model with A gear (41) by rotating shaft, tooth bar (5) is arranged in the chute (06) of the lower, transverse setting of dynamic model, oil cylinder (8) is fixedly connected on the right outside side of dynamic model by cylinder bracket (07), the right-hand member of tooth bar (5) is connected with the piston rod of oil cylinder (8), reset stroke switch (6) and stripping stroke switch (7) are in the below of described chute (06), wherein, stripping stroke switch (7) is positioned at the left position of tooth bar (5), and reset stroke switch (6) is positioned at the right positions of tooth bar (5) the described limited block in the right (51) on cylinder bracket (07), above-mentioned, the folding direction of mould is called longitudinally, is called laterally with the direction of described longitudinal quadrature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210059143.0A CN102601933B (en) | 2012-02-26 | 2012-02-26 | Threaded core pulling device with automatically reset thread starting point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210059143.0A CN102601933B (en) | 2012-02-26 | 2012-02-26 | Threaded core pulling device with automatically reset thread starting point |
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| Publication Number | Publication Date |
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| CN102601933A CN102601933A (en) | 2012-07-25 |
| CN102601933B true CN102601933B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210059143.0A Active CN102601933B (en) | 2012-02-26 | 2012-02-26 | Threaded core pulling device with automatically reset thread starting point |
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| CN102990824A (en) * | 2012-10-11 | 2013-03-27 | 凡嘉科技（无锡）有限公司 | Thread removing structure for controlling thread starting position |
| 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 |
| CN104708774B (en) * | 2015-03-11 | 2017-03-08 | 宁波双林模具有限公司 | A kind of ratchet-type screw thread starting point resetting means |
| CN107030992B (en) * | 2015-06-21 | 2019-12-06 | 深圳市固源塑胶制品有限公司 | Oil cylinder twice-parting core-pulling injection mold and using method thereof |
| CN106042280B (en) * | 2016-06-28 | 2018-01-09 | 浙江哈尔斯真空器皿股份有限公司 | The stopping means of plastic cement screw thread box cover die based on fluid motor-driven |
| CN106976213A (en) * | 2017-03-28 | 2017-07-25 | 宁波神通模塑有限公司 | A kind of inner threaded core-pulling structure of injection mold |
| CN106985353A (en) * | 2017-04-16 | 2017-07-28 | 宁波神通模塑有限公司 | A kind of screw thread drift mould emptier |
| CN109435179A (en) * | 2018-12-17 | 2019-03-08 | 昆山准达热流道有限公司 | Threaded cap shaping mould |
| CN111070595A (en) * | 2020-02-18 | 2020-04-28 | 创意塑胶工业（苏州）有限公司 | Injection mold for removing threads of plastic part |
| CN112474857A (en) * | 2020-12-09 | 2021-03-12 | 尹强强 | Aluminum profile extrusion forming die |
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| JP2008012873A (en) * | 2006-07-10 | 2008-01-24 | Fujinon Sano Kk | Mold assembly for injection molding |
| CN101444949A (en) * | 2009-01-06 | 2009-06-03 | 宁海县大鹏模具塑料有限公司 | Injection mold moving and stationary mold bidirectional helical demolding mechanism |
| CN202462806U (en) * | 2012-02-26 | 2012-10-03 | 宁波思迈工业科技有限公司 | Thread core pulling device capable of automatically resetting initial thread point |
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2012
- 2012-02-26 CN CN201210059143.0A patent/CN102601933B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008012873A (en) * | 2006-07-10 | 2008-01-24 | Fujinon Sano Kk | Mold assembly for injection molding |
| CN101444949A (en) * | 2009-01-06 | 2009-06-03 | 宁海县大鹏模具塑料有限公司 | Injection mold moving and stationary mold bidirectional helical demolding mechanism |
| CN202462806U (en) * | 2012-02-26 | 2012-10-03 | 宁波思迈工业科技有限公司 | Thread core pulling device capable of automatically resetting initial thread point |
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| CN102601933A (en) | 2012-07-25 |
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