CN102152472B - Neckling die structure of plastic blow molding machine in improved structure - Google Patents
Neckling die structure of plastic blow molding machine in improved structure Download PDFInfo
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- CN102152472B CN102152472B CN 201010584301 CN201010584301A CN102152472B CN 102152472 B CN102152472 B CN 102152472B CN 201010584301 CN201010584301 CN 201010584301 CN 201010584301 A CN201010584301 A CN 201010584301A CN 102152472 B CN102152472 B CN 102152472B
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Abstract
The invention relates to a neckling die structure of a plastic blow molding machine in an improved structure, belonging to the technical field of blow molding machinery. The neckling die structure of the plastic blow molding machine comprises a die core, a die mouth ring and a die sleeve, wherein the die mouth ring is fixed with the bottom of the die sleeve which is fixed with an oil cylinder body; and the die core is arranged in a die mouth cavity and fixedly connected with an oil cylinder column of the oil cylinder. The neckling die structure of the plastic blow molding machine in the improved structure is characterized by also comprising an elastic ferrule and an elastic ferrule thixotropic device for driving the elastic ferrule to deform; the elastic ferrule is arranged in the die mouth ring and contacts with the inner wall of the die mouth ring; the lower part of the elastic ferrule extends out of the die mouth ring; the die core is arranged in the elastic ferrule; a gap for a plastic blank to pass is formed between the outer wall of the die core and the inner wall of the elastic ferrule; and the elastic ferrule thixotropic device is fixed on the die mouth ring and matched with the lower part of the elastic ferrule. The invention is favorable to avoiding the unnecessary waste of the material and also favorable to decreasing the manufacture cost of a plastic container.
Description
Technical field
The invention belongs to the blowing field of mechanical technique, be specifically related to a kind of die geometry of plastic blow molding machine of architecture advances.
Background technology
The die geometry of the plastic blow molding machine in the prior art as shown in Figure 3, comprise a core rod 1, a die orifice circle 2 and a die sleeve 3, die orifice circle 2 is fixed by the bottom of screw and die sleeve 3, and die sleeve 3 is fixed with cylinder block, core rod 1 matches with die orifice circle 2, and fixedlys connected with the oil cylinder post of oil cylinder.Work by oil cylinder makes the oil cylinder post take core rod 1 displacement and since core rod 1 be shaped as known truncated cone, so the oil cylinder post is when taking core rod 1 and moving, core rod 1 changes with respect to the gap between the die orifice circle 2 (industry is referred to as to expect).The thickness of the more big then material in gap is more thick, and vice versa, to obtain the hollow plastic container of required wall thickness.For example when core rod 1 during towards the direction displacement of mouth mould circle 2, then because core rod 1 becomes greatly with gap between mouthful mould circle 2, and load increases, and the thickness of material base is just thick, on the contrary then attenuation.
It is one thick all thick that the axial wall thickness of the plastic hollow vessel that the die geometry of above-mentioned plastic blow molding machine obtains only can show as, and one is thin all thin, and can not embody distinctiveness.Yet, when reality is made plastic hollow vessel such as plastic cistern and plastics and is added the container of human relations bucket and so on, often exist the thickness on the same cross section to require different situations, be that the container of square or rectangle is example with shape of cross section, the thickness of four angles needs thicker than other regional thickness usually, therefore, if use die geometry shown in Figure 3, so in order to ensure the intensity in four bights, usually with the satisfied thickness (industry is referred to as just thick just not thin) to the bight of other regional thickness of container, thereby cause the unnecessary waste of material, energy-saving spiritual incompatible of the economizing type of advocating with the present whole society not only, and inaction ground has increased the cost of container.
The applicant has carried out literature search, China utility model patent Granted publication CN2837051Y has recommended a kind of blow moulding machine annular die device, this patent scheme also can only integrally be regulated the relative position between the inner and outer ring, thereby does not have referential meaning for overcoming the technical problem that the applicant mentions in the above.For this reason, the applicant has carried out long-term exploration and trial repeatedly, and technical scheme described below produces under this background.
Summary of the invention
Task of the present invention is to provide a kind of helping that material base is required to regulate and uses the die geometry of plastic blow molding machine of the architecture advances of the ground waste material of avoiding doing nothing in the axial difference of wall thickness.
Task of the present invention is finished like this, a kind of die geometry of plastic blow molding machine of architecture advances, comprise core rod, die orifice circle and die sleeve, the bottom of die orifice circle and die sleeve is fixed, die sleeve and cylinder block are fixed, core rod is positioned at the die orifice chamber and fixedlys connected with the oil cylinder post of oil cylinder, be characterised in that: also include an elastic collar and be used for the elastic collar thixotroping device force elastic collar to deform, elastic collar is located in the described die orifice circle, contact with the inwall of die orifice circle, and the bottom of this elastic collar leans out the die orifice circle, described core rod is positioned at elastic collar, and constitute the road, crack that passes through for for the plastics material base between the outer wall of this core rod and the inwall of elastic collar, described elastic collar thixotroping device is fixed on the described die orifice circle, and match with the bottom of elastic collar, the upper surface of described die orifice circle constitutes the logical location ring recess of a ring, in the ring recess of location, be provided with a centring ring and one group of Hough union thimble, wherein, the Hough union thimble is positioned at the inboard of centring ring, the top of described elastic collar places on the Hough union thimble, described Hough union thimble has a Hough union thimble step, and the top of described elastic collar constitutes an elastic collar step, and this elastic collar step matches with Hough union thimble step.
In a specific embodiment of the present invention, described elastic collar thixotroping device comprises shutter housing, revolving body, cam ring and be used for ordering about the rotating revolving body actuating device of revolving body, shutter housing is nested with outside described die orifice circle, and fix with the die orifice circle, revolving body is arranged on outside the shutter housing rotationally, cam ring and revolving body are fixed, and the revolution with revolving body is turned round, on this cam ring and towards the center position of cam ring, be arranged at intervals with one group of cam bit, the revolving body actuating device is located on the described shutter housing and with described revolving body and is connected, the bottom of described shutter housing is spaced apart to be provided with the push-rod hole that one group of quantity equates with the quantity of described cam bit, inserted a push rod in each push-rod hole, one end of push rod is corresponding with the elastic collar of the described bottom that leans out the die orifice circle, be used for the pushing elastic collar, and push rod other end pivot has been provided with a roller, and roller contacts with described cam bit.
In another specific embodiment of the present invention, described elastic collar is to be made by the metal material with elastic deformation characteristic.
In another specific embodiment of the present invention, the described elastic deformation characteristic's of having metal material is spring steel, copper or copper alloy.
In another specific embodiment of the present invention, described revolving body comprises upper and lower pivoted loop and ball, constitute a pair of ball road that corresponds to each other up and down on the described shutter housing, ball is located in the ball road, upper and lower pivoted loop is fixed to one another, and last pivoted loop be located at shutter housing on the ball road on top in ball match, and change next time be located at shutter housing on the ball road of bottom in ball match, described cam ring is fixed on the bottom of change next time, and described revolving body actuating device is connected with revolving body.
Also have in the specific embodiment of the present invention, described revolving body actuating device comprises motor, first, the second worm screw seat, worm and worm wheel, motor is fixed on the first worm screw seat with horizontally-arranged state, first, the second worm screw seat all is fixed on the described shutter housing, the end of worm screw is bearing on the first worm screw seat rotationally, first, the second worm screw seat all is fixed on the described shutter housing, the end of worm screw is bearing on the first worm screw seat rotationally, and be in transmission connection with motor, the other end of worm screw is bearing on the second worm screw seat rotationally, worm gear is fixed on the described revolving body, and is meshed with described worm screw.
More of the present invention and in specific embodiment, described motor is servomotor.
In of the present invention and then specific embodiment, the quantity of described one group of cam bit is 2-16, and to be equidistantly spaced at the circumferencial direction of described cam ring, described quantity of being furnished with the push rod of roller equates with the quantity of cam bit.
Technical scheme provided by the invention is owing to done above-mentioned improvement, namely owing to set up elastic collar and elastic collar thixotroping device, thereby force elastic collar generation deformation by elastic collar thixotroping device, road, crack between elastic collar and the core rod is changed, thereby be able to same cross section at container obtain thickness different wall thickness, both help to avoid the inaction waste of material, be conducive to reduce the manufacturing cost of plastic containers again.
Description of drawings
Fig. 1 is a specific embodiment structure chart of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the die geometry figure of the plastic blow molding machine in the prior art.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the present invention program to the description of embodiment, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
See also Fig. 1 and Fig. 2, core rod 1 identical with known technology or that claim equivalent, die orifice circle 2 (the industry custom is called a mouthful mould) and die sleeve 3 have been provided in the drawings, die orifice circle 2 is fixed by means of a bracket 22 and with one group of bracket hold-down screw 221 and the bottom of die sleeve 3, and die sleeve 3 is fixed according to known technology and cylinder block, core rod 1 is positioned at die orifice circle 2, and the top of core rod 1 is fixed with core rod hold-down screw 12 and the oil cylinder post of oil cylinder, drives core rod 1 corresponding sports by moving up and down of oil cylinder post.
Technical essential as technical scheme provided by the invention: the die geometry as the blow moulding machine of architecture advances that provides comprises that also the elastic collar of setting up 4 and is similarly the elastic collar thixotroping device of setting up 5, the top of elastic collar 4 constitutes an elastic collar step 41, and the upper surface of aforementioned die orifice circle 2 constitutes the logical location ring recess 21 of ring one, in the ring recess 21 of location, a centring ring 211 and one group of (a pair of) Hough union thimble 212 are set, Hough union thimble 212 is positioned at the inboard of centring ring 211, and constitute a Hough union thimble step 2121 at Hough union thimble 212, elastic collar step 41 matches with Hough union thimble step 2121, thereby the top that makes elastic collar 4 places on the Hough union thimble 212, say on a macro scale, place on the die orifice circle 2.Shown in figure, the outer wall of elastic collar 4 contacts with the inwall of die orifice circle 2, and the bottom of elastic collar 4 leans out the lower edge of die orifice circle 2, in order to touch and it is deformed for the following elastic collar thixotroping device 5 that will describe.Because setting up of elastic collar 4, thereby make gap between the inwall of the core rod 1 of original (known technology) and die orifice circle 2 develop into road, crack 11 between the inwall of the outer wall of core rod 1 and elastic collar 4, so when elastic collar 4 deformed, road, crack 11 just changed.Elastic collar 4 adopts the metal material with elastic deformation characteristic to make, and for example adopts spring steel or similar elastic metallic material such as copper or copper alloy (albronze).Aforesaid Hough union thimble 212 namely constitutes one group that is fitted to each other by two, and the concept of Hough is half English (half) connotation.
Continue to see Fig. 1 and Fig. 2, preferably but not the structure of the elastic collar thixotroping device 5 that definitely is limited to is as follows: comprise shutter housing 51, revolving body 52, cam ring 53 and revolving body actuating device 54, shutter housing 51 is nested with outside aforesaid die orifice circle 2, and fixing with the screw hole 23 on the die orifice circle 2 by illustrated shutter housing hold-down screw 513.By illustrated in figures 1 and 2, outer wall at shutter housing 51 constitutes a pair of ball road 512 (also can claim spherical guide) that corresponds to each other up and down, revolving body 52 comprises, change next time 521,522 and ball 523, ball 523 is located in the aforesaid a pair of ball road 512, perhaps claim ball 523 and ball road 512 to form rolling pair, change next time 522 is fixed by one group of pivoted loop hold-down screw 5221 and last pivoted loop 521, wherein: the ball 523 on the ball road 512 on the top on going up pivoted loop 521 and being in a pair of ball road 512 matches, and turn next time 522 be in a pair of ball road 512 on the ball road 512 of bottom on ball 523 match.The bottom of aforesaid shutter housing 51 is spaced apart to be provided with one group of push-rod hole 511, movably insert an end of a push rod 5111 in each push-rod hole 511, and push rod 5111 matches with the bottom (leaning out the position of die orifice circle 2) of aforesaid elastic collar 4 after stretching out push rod 511, be used for spreading to elastic collar 4, force elastic collar 4 to produce distortion, the other end pivot of each push rod 5111 is provided with a roller 5112, and roller 5112 matches with cam ring 53.One group of cam ring hold-down screw of cam ring 53 usefulness 532 is fixed with the bottom of the change next time 522 of aforesaid revolving body 52, with chimeric mode, welding fixed form or by the fixing mode of screw the cam bit 531 of one group of each interval is arranged fixedly on this cam ring 53 and towards the center position of cam ring 53, aforesaid roller 5112 matches with cam bit 531.When cam ring 53 when rotating counterclockwise, spread to roller 5112 by the stub end of cam bit 531, make push rod 5111 lean out push-rod hole 511, the end face of push rod 5111 is pushing tow elastic collar 4 just, make its distortion, deflection determines that by the revolution degree of cam ring 53 vice versa.Because the motion of cam ring 53 is to be determined by revolving body 52, the revolution owing to revolving body 52 realizes by revolving body actuating device 54 again, so revolving body actuating device 54 working conditions have determined the suitable contrary revolution of cam ring 53.
The structure of preferred revolving body actuating device 54 is as follows: comprise that motor 541, first, second worm screw bow 542,543, worm screw 544 and worm gear 545, motor 541 adopts AC servo motor, and be clockwise and anticlockwise motor, and be fixed on the first worm screw seat 542 with horizontally-arranged state, first, second worm screw 542,543 parallel to each other, and be fixed on the aforesaid shutter housing 51 with the horizontal boom state.The end of worm screw 544 is supported on rotationally on the first worm screw seat 542 and with motor 541 and is in transmission connection, and the other end of worm screw 544 is bearing on the second worm screw seat 543 rotationally.Worm gear 545 is the worm gear of an arcuation body, fixes by worm gear seat 5451 and aforesaid revolving body 52, more precisely, fix with the aforesaid pivoted loop 521 of going up, and worm gear 545 is meshed with worm screw 544.
During the different plastic hollow vessel of the wall thickness on will producing same cross section, make motor 541 work of revolving body actuating device 54 so, motor 541 drives worm screw 544, because worm gear 545 is meshed with worm screw 544, be fixed on the last pivoted loop 521 of revolving body 52 owing to worm gear 545 again, therefore when worm screw 544 drives worm gear 545, drive revolving body 52 revolutions by worm gear 545, drive cam ring 53 by revolving body 52, cam ring 53 is against the sun turned round, the state bottom that is changed track by cam bit 531 limits acts on roller 5112, cause the end face of push rod 5111 to support and namely oppress elastic collar 4, be subjected to oppression the elastic collar 4 at position towards the direction deformation of core rod 1, road, crack 11 is herein narrowed down, the material nature at the narrow place in road, crack 11 is 11 wide position displacements (flowing) to the road, crack, be presented on the thick thin situation that has is arranged on the same cross section thereby use material base from the outer wall of core rod 1, to satisfy the different wall thickness requirement of plastic hollow vessel.
Claims (5)
1. the die geometry of the plastic blow molding machine of an architecture advances, comprise core rod (1), die orifice circle (2) and die sleeve (3), die orifice circle (2) is fixed with the bottom of die sleeve (3), die sleeve (3) is fixed with cylinder block, core rod (1) is positioned at die orifice chamber (2) and fixedlys connected with the oil cylinder post of oil cylinder, it is characterized in that: also include an elastic collar (4) and be used for the elastic collar thixotroping device (5) force elastic collar (4) to deform, elastic collar (4) is located in the described die orifice circle (2), contact with the inwall of die orifice circle (2), and the bottom of this elastic collar (4) leans out die orifice circle (2), described core rod (1) is positioned at elastic collar (4), and constitute the road, crack (11) that passes through for for the plastics material base between the inwall of the outer wall of this core rod (1) and elastic collar (4), described elastic collar thixotroping device (5) is fixed on the described die orifice circle (2), and match with the bottom of elastic collar (4), the upper surface of described die orifice circle (2) constitutes the logical location ring recess (21) of a ring, in location ring recess (21), be provided with a centring ring (211) and one group of Hough union thimble (212), wherein, Hough union thimble (212) is positioned at the inboard of centring ring (211), the top of described elastic collar (4) places on the Hough union thimble (212), described Hough union thimble (212) has a Hough union thimble step (2121), and the top of described elastic collar (4) constitutes an elastic collar step (41), this elastic collar step (41) matches with Hough union thimble step (2121), described elastic collar thixotroping device (5) comprises shutter housing (51), revolving body (52), cam ring (53) and be used for ordering about the rotating revolving body actuating device of revolving body (52) (54), shutter housing (51) is nested with outside described die orifice circle (2), and it is fixing with die orifice circle (2), revolving body (52) is arranged on outside the shutter housing (51) rotationally, cam ring (53) is fixing with revolving body (52), and the revolution with revolving body (52) is turned round, go up and be arranged at intervals with one group of cam bit (531) towards the center position of cam ring (53) at this cam ring (53), revolving body actuating device (54) is located at described shutter housing (51) and upward and with described revolving body (52) is connected, the bottom of described shutter housing (51) is spaced apart to be provided with the push-rod hole (511) that one group of quantity equates with the quantity of described cam bit (531), inserted a push rod (5111) in each push-rod hole (511), one end of push rod (5111) is corresponding with the elastic collar (4) of the described bottom that leans out die orifice circle (2), be used for pushing elastic collar (4), and push rod (5111) other end pivot has been provided with a roller (5112), roller (5112) contacts with described cam bit (531), described revolving body (52) comprises, change next time (521,522) and ball (523), constitute a pair of ball road that corresponds to each other up and down (512) on the described shutter housing (51), ball (523) is located in the ball road (512), on, change next time (521,522) fixed to one another, and last pivoted loop (521) be located at shutter housing (51) on the ball road (512) on top in ball (523) match, and change next time (522) be located at shutter housing (51) on the ball road (512) of bottom in ball (523) match, described cam ring (53) is fixed on the bottom of change next time (522), described revolving body actuating device (54) is connected with revolving body (52), described revolving body actuating device (54) comprises motor (541), first, the second worm screw seat (542,543), worm screw (544) and worm gear (545), motor (541) is fixed on the first worm screw seat (542) with horizontally-arranged state, first, the second worm screw seat (542,543) all be fixed on the described shutter housing (51), the end of worm screw (544) is bearing on the first worm screw seat (542) rotationally, first, the second worm screw seat (542,543) all be fixed on the described shutter housing (51), the end of worm screw (544) is bearing on the first worm screw seat (542) rotationally, and be in transmission connection with motor (541), the other end of worm screw (544) is bearing on the second worm screw seat (543) rotationally, worm gear (545) is fixed on the described revolving body (52), and is meshed with described worm screw (544).
2. the die geometry of the plastic blow molding machine of architecture advances according to claim 1 is characterized in that described elastic collar (4) is to be made by the metal material with elastic deformation characteristic.
3. the die geometry of the plastic blow molding machine of architecture advances according to claim 2, the metal material that it is characterized in that the described elastic deformation characteristic of having is spring steel, copper or copper alloy.
4. the die geometry of the plastic blow molding machine of architecture advances according to claim 1 is characterized in that described motor (541) is servomotor.
5. the die geometry of the plastic blow molding machine of architecture advances according to claim 1, the quantity that it is characterized in that described one group of cam bit (531) is individual for (2-16), and be arranged on the circumferencial direction of described cam ring (53) with equidistant diaphragm, described quantity of being furnished with the push rod (5111) of roller (5112) equates with the quantity of cam bit (531).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010584301 CN102152472B (en) | 2010-12-13 | 2010-12-13 | Neckling die structure of plastic blow molding machine in improved structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010584301 CN102152472B (en) | 2010-12-13 | 2010-12-13 | Neckling die structure of plastic blow molding machine in improved structure |
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| CN102152472A CN102152472A (en) | 2011-08-17 |
| CN102152472B true CN102152472B (en) | 2013-08-28 |
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| CN 201010584301 Active CN102152472B (en) | 2010-12-13 | 2010-12-13 | Neckling die structure of plastic blow molding machine in improved structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729752A (en) * | 2016-02-16 | 2016-07-06 | 上海品冠塑胶工业有限公司 | Extrusion die head used for blow molding of special-shaped plastic bottle and manufacturing method of extrusion die head |
| CN106182706B (en) * | 2016-07-20 | 2018-01-12 | 苏州同大机械有限公司 | The die geometry of blow moulding machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024557A (en) * | 1997-06-12 | 2000-02-15 | Feuerherm; Harald | Extrusion head for blow-molding apparatus |
| US6354828B1 (en) * | 1999-01-27 | 2002-03-12 | Harald Feuerherm | Extrusion head for blow molded extruded plastic containers |
| CN2656114Y (en) * | 2003-11-26 | 2004-11-17 | 汕头市升平区金海湾包装机械有限公司 | Bush structure of machine head mould for blow moulding equipment |
| CN201922552U (en) * | 2010-12-13 | 2011-08-10 | 苏州同大机械有限公司 | Structurally modified die structure of plastic blow molding machine |
-
2010
- 2010-12-13 CN CN 201010584301 patent/CN102152472B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024557A (en) * | 1997-06-12 | 2000-02-15 | Feuerherm; Harald | Extrusion head for blow-molding apparatus |
| US6354828B1 (en) * | 1999-01-27 | 2002-03-12 | Harald Feuerherm | Extrusion head for blow molded extruded plastic containers |
| CN2656114Y (en) * | 2003-11-26 | 2004-11-17 | 汕头市升平区金海湾包装机械有限公司 | Bush structure of machine head mould for blow moulding equipment |
| CN201922552U (en) * | 2010-12-13 | 2011-08-10 | 苏州同大机械有限公司 | Structurally modified die structure of plastic blow molding machine |
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