CN103029287A - Inner container mouth molding device - Google Patents
Inner container mouth molding device Download PDFInfo
- Publication number
- CN103029287A CN103029287A CN2011102911867A CN201110291186A CN103029287A CN 103029287 A CN103029287 A CN 103029287A CN 2011102911867 A CN2011102911867 A CN 2011102911867A CN 201110291186 A CN201110291186 A CN 201110291186A CN 103029287 A CN103029287 A CN 103029287A
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- inner container
- molding device
- blow needle
- stationary magazine
- magazine creel
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Abstract
The invention discloses an inner container mouth molding device, which comprises: a lower blowing pin equipped with oblique guide pillars at the upper part; a fixation cylinder outside the lower blowing pin, with through-holes on the upper side wall of the fixation cylinder inlaid with pressing blocks in one-to-one correspondence with the oblique guide pillars; and a pull-down mechanism that is in fixed connection with the lower blowing pin and used for driving the lower blowing pin to move downward relative to the fixation cylinder. Specifically, the part below the through-holes on the fixation cylinder is provided with a first shaft shoulder for supporting a threaded insert, the outer diameter of the first shaft shoulder is equal to the inner diameter of the mouth of a to-be-blown inner container. The axial spacing between the first shaft shoulder and the lower edges of the through-holes is equal to the axial length of the threaded insert. By changing the connection way of the threaded insert and the lower blowing pin, the invention makes use of the upward and downward motions of the lower blowing pin to drive the pressing blocks to press or release the threaded insert, so that the threaded insert and the inner container body can be taken out of an inner container mold together rapidly and effectively. With the device provided in the invention, the disassembly and assembly time of the lower blowing pin can be saved, and the production efficiency is effectively improved.
Description
Technical field
The present invention relates to a kind of blow-forming facility of inner bag, particularly a kind of inner container opening molding device.
Background technology
As shown in Figure 1, traditional forming device of plastic inner container forms a cavity for the blowing inner bag after having comprised 1, two inner bag mould of two opposed inner bag moulds matched moulds.Be provided with blow needle support 31 below this chamber, connect blow needle 3 at this time blow needle 31 by a cylinder, the screw thread mold insert 2 that will be combined with inner bag to be formed is screwed in the top of lower blow needle 3.
The inner bag half-finished top structure of Fig. 2 for adopting the blowing of above-mentioned forming device of plastic inner container and method thereof to form.At inner bag 10 " the end face of opening can produce a piece line 103; and finished product requires the end face of inner bag to have very smooth, smooth sealing plane 102 (seeing also Fig. 3 appropriate section), forms simultaneously a sealing chamfering 101 (seeing also Fig. 3 appropriate section) in the inboard of opening.
Traditional forming method is after the blow molding of inner bag semi-finished product, forms sealing chamfering 101 and sealing plane 102 by rear road manufacturing procedure again.This road manufacturing procedure needs the extra process equipment that drops into to finish.Particularly when product was very large, the floor space of process equipment also correspondingly increased, even needed special workshop to place these process equipments.So this procedure not only expends man-hour, and can be because the problem of machining accuracy may produce inhomogeneous sealing chamfering; Can cause the goods seal failure when serious, produce defective products.When output is very large, will bring very large facility if can save this road manufacturing procedure, significantly boost productivity.
In addition, because screw thread mold insert of the prior art and lower blow needle be for being threaded, certainty disassemble lower blow needle simultaneously when taking off inner bag, then manually backs out lower blow needle.Before the next inner bag of blowing, need this time blow needle is reinstalled on the blowing down needle rack, and next screw thread mold insert is screwed onto on the lower blow needle.For the larger situation of output, the device of prior art and blowing method thereof have caused the blowing complex procedures, simultaneously the lower problem of yield rate.On the other hand, operation repeatability is excessive for operating personnel, expends the raising that has hindered again production efficiency man-hour.
Summary of the invention
The technical problem to be solved in the present invention is the complex procedures for the shaped device that overcomes inner bag oral area of the prior art and method blowing inner bag finished product thereof, and need to repeatedly dismantle and install lower blow needle and cause many, defective that production efficiency is low consuming time, a kind of new inner container opening molding device is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
Blow needle once, the top of this time blow needle is provided with some Angle Pins, and the upper end of described Angle Pin is free end, and the lower end is stiff end, and this free end is away from the axis of this time blow needle, and this stiff end links to each other with this time blow needle and near this axis;
One is set in the outer stationary magazine creel of this time blow needle, the upper portion side wall of this stationary magazine creel is along being circumferentially with some through holes, all plug in each described through hole one with this Angle Pin compact heap one to one, the middle part of this compact heap is equipped with an inclined ramp adaptive with corresponding this Angle Pin; On this stationary magazine creel, the below that is positioned at described through hole has first shaft shoulder that is used for supporting a screw thread mold insert, the external diameter of this first shaft shoulder equals the internal diameter of the oral area of inner bag to be blown; The axial distance of the lower limb of this first shaft shoulder and this through hole equals the axial length of this screw thread mold insert; And
One affixed with this time blow needle, be used for driving the pull down mechanism that relative this stationary magazine creel of this time blow needle moves downward.When this time blow needle moved downward, the Angle Pin on this time blow needle also moved downward, thereby compact heap is released to the direction away from this axis, thereby this screw thread mold insert is pressed on this first shaft shoulder, played the purpose of retaining thread mold insert.
Preferably, the top of this time blow needle has a collar flange, and this Angle Pin is located at the upper surface of this collar flange, and the stiff end of this Angle Pin compared to the edge of this collar flange more close this axis.Therefore, Angle Pin forms a leg-of-mutton yielding zone away from a side of this axis and the upper surface of this collar flange, thereby can be separated by a distance in the horizontal direction with the screw thread mold insert when compact heap is regained to this axis, can not bump against with compact heap when guaranteeing the demoulding of screw thread mold insert, the phenomenon of snap gauge occurs.
Preferably, a sheathed cooling cover also between this stationary magazine creel and this time blow needle forms a cooling chamber, accommodating cooling medium in this cooling chamber between this cooling cover and this stationary magazine creel.
Preferably, this inner container opening molding device comprises that also one is set in the outer upper pushing sleeve cylinder of this stationary magazine creel, and external diameter of pushing sleeve cylinder is greater than the external diameter of this oral area on this, and internal diameter of pushing sleeve cylinder is less than the external diameter of this oral area on this; And one with should connect, be used for driving the upper pushing mechanism that relative this stationary magazine creel of pushing sleeve cylinder moves up on this by upper pushing sleeve cylinder.
Preferably, also be provided with one second shaft shoulder on this stationary magazine creel, this second shaft shoulder is positioned at the below of this first shaft shoulder; The external diameter of this second shaft shoulder is greater than the internal diameter of this oral area, less than the external diameter of this oral area.
Preferably, pushing mechanism and this pull down mechanism are respectively an oil cylinder on this.
Preferably, also be arranged with an elastic mechanism on this time blow needle.
Preferably, this elastic mechanism is spring.
Preferably, the angle of described Angle Pin and this axis is 45 °～60 °.
Preferably, the top of each described through hole is equipped with one for the groove of dodging of dodging described Angle Pin.
Among the present invention, but above-mentioned optimum condition any combination on the basis that meets this area general knowledge namely gets each preferred embodiment of the present invention.
Positive progressive effect of the present invention is: inner container opening molding device of the present invention is by changing the connected mode of screw thread mold insert and lower blow needle, utilize the upper and lower action of lower blow needle to drive the compact heap compression or discharge the screw thread mold insert, thereby quickly and efficiently screw thread mold insert and inner bag body are together taken out from the inner bag mould.Save the time of blow needle under the dismounting, effectively improved production efficiency.
Further, by upper pushing mechanism the end face of inner bag opening is compressed operation, effectively avoid the formation of splicing line, and can form simultaneously the sealing chamfering, omit the operation that rear road forms sealing chamfering and finishing sealing plane, further improved production efficiency and end product quality.
Description of drawings
Fig. 1 is the structural representation of the shaped device of inner bag oral area in the prior art.
The inner-tube structure schematic diagram of Fig. 2 for adopting shaped device of the prior art and method to obtain.
Fig. 3 is the structural representation of the inner bag oral area after the moulding.
Fig. 4 is the structural representation of inner container opening molding device under holding state of preferred embodiment of the present invention.
Fig. 5 is the structural representation under the inner container opening molding device hold mode among Fig. 4.
Fig. 6 is the partial enlarged drawing of the lower blow needle of inner container opening molding device of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 4, inner container opening molding device of the present invention has comprised a frame fixed head 44, fix a upwardly extending stationary magazine creel 8 at the upper surface of frame fixed head 44, the external diameter on the top of this stationary magazine creel 8 is less than the external diameter at these stationary magazine creel 8 middle parts, namely form first shaft shoulder 81 at stationary magazine creel 8, the internal diameter of the top of this stationary magazine creel 8 and screw thread mold insert 2 is adaptive.Wear blow needle 3 ' in these stationary magazine creel 8 inside.The end face of the top self-retaining cylinder 8 of this time blow needle 3 ' passes.In addition, be provided with one as the drop-down oil cylinder 42 of pull down mechanism below frame fixed head 44, the piston rod of this drop-down oil cylinder 42 is fixedly connected with this time blow needle 3 '.Under the driving of drop-down oil cylinder 42, this time blow needle 3 ' is done at the bearing of trend of this stationary magazine creel 8 and is moved up and down.
The circumferential side wall on the top of this described stationary magazine creel 8 is provided with four through holes, all slides in each through hole and establishes a compact heap 32.Be equipped with a slot to make way at the top of each through hole.Each compact heap 32 middle part is equipped with an inclined ramp, and relative bottom, the upper end of this inclined ramp is further from the axis of lower blow needle 3 '.The angle of inclination of this inclined ramp in the present embodiment, namely the angle of the axis of inclined ramp and this time blow needle 3 ' is 45 °.The axial distance of the bottom margin of described through hole and above-mentioned first shaft shoulder 81 equals the axial length of screw thread mold insert 2.Be assembled to the top of stationary magazine creel 8 when screw thread mold insert 2 after, the end face of screw thread mold insert 2 flushes with the bottom margin of through hole.
Be provided with a collar flange 33 in lower blow needle 3 ' upper position near its gas outlet, be provided with the Angle Pin 31 of four inclinations at the upper surface of this collar flange 33, every Angle Pin 31 is all corresponding with a compact heap 32, and passes the inclined ramp of this compact heap 32.The lower end of four Angle Pins 31 is stiff end, and it is installed on the collar flange.The upper end of Angle Pin 31 is free end, and this free end is away from the axis of this time blow needle 3 '.In addition, this stiff end is compared more close this axis, edge of described collar flange 33, thereby Angle Pin 31 forms a leg-of-mutton yielding zone (seeing Fig. 6) away from a side of this axis and the upper surface of this collar flange.The angle of inclination of this Angle Pin 31 and the angle of inclination of this inclined ramp are adaptive.In the process that lower blow needle 3 ' drive Angle Pin 31 upwards moves, Angle Pin 31 promotes compact heap 32 towards the direction away from the axis of lower blow needle 3 ', impel the lower surface of compact heap 32 to press in the upper surface of screw thread mold insert 2, under the acting in conjunction of above-mentioned first shaft shoulder 81, screw thread mold insert 2 is fixed on the top of stationary magazine creel 8, just can begins to blow operation.Instantly blow needle 3 ' drives in the process of Angle Pin 31 action downwards, Angle Pin 31 is with the direction pulling of compact heap 32 towards the axis of close lower blow needle 3 ', thereby so that screw thread mold insert 2 is joined with stationary magazine creel 8 pines, so that the inner bag 10 ' of moulding (seeing Fig. 5) and the together demoulding of screw thread mold insert 2, and do not need to take off lower blow needle 3 '.
A sheathed cooling cover 5 also between stationary magazine creel 8 and lower blow needle 3 '.Form the cooling chamber 7 of a column between this cooling cover 5 and the stationary magazine creel 8.Be equipped with cooling medium in this cooling chamber 7, for example cooling agent or water.In order to prevent that cooling medium from overflowing from cooling chamber 7, this cooling cover 5 is equipped with sealing mechanism with stationary magazine creel 8 in the position that borders at two ends.Also be provided with a spring 6 as resetting-mechanism in this cooling cover 5, being convenient to lower blow needle 3 ' can Rapid reset after drop-down oil cylinder 42 releases.
In addition, the pushing sleeve cylinder 9 on sheathed also in the outside of stationary magazine creel 8.Upward the bottom of pushing sleeve cylinder 9 is fixedly arranged on the upper surface of push pedal 45 on.Should upper push pedal 45 and two upper push oil cylinder 41,43 connections as upper pushing mechanism.Below first shaft shoulder 81 of stationary magazine creel 8, also be formed with one second shaft shoulder 82.The external diameter of this second shaft shoulder 82 is greater than the external diameter of first shaft shoulder 81, simultaneously again less than the internal diameter of the oral area 11 behind the left and right inner bag mould 1 ' matched moulds.And upper pushing sleeve cylinder 9 internal diameters are less than the internal diameter of this oral area 11, and upper pushing sleeve cylinder 9 external diameters are then greater than the internal diameter of this oral area 11.
Below oral area 11, form a binder chamber 12 behind two inner bag mould 1 ' matched moulds.The internal diameter on these 12 tops, binder chamber equals the external diameter of pushing sleeve cylinder 9 on this, and advances/go out this binder chamber for the ease of upper pushing sleeve cylinder 9, and the internal diameter of these 12 bottoms, binder chamber is slightly larger than the external diameter of pushing sleeve cylinder 9 on this.As shown in Figure 5, in lower blow needle 3 ' blowing inner bag 10 ', upper push oil cylinder 41,43 drives upper pushing sleeve cylinder 9 and moves upward, material base to the oral area 11 that is positioned at inner bag mould 1 ' carries out compacting operation so that the coating of the material base of inner bag 10 ' oral area and screw thread mold insert 2 is more tight, firmly.Upper pushing sleeve cylinder 9 keeps upper push position until before the die sinking.At this moment, the end face of second shaft shoulder 81 of the end face of upper pushing sleeve cylinder 9 and stationary magazine creel 8 is concordant.That is to say that second shaft shoulder 81 of stationary magazine creel 8 has formed the end face of inner bag after the moulding (being sealing plane 102 among Fig. 3) jointly with the end face of upper pushing sleeve cylinder 9 in the process of carrying out compacting operation, thereby avoid forming step at the end face of inner bag.During die sinking, three oil cylinders reset simultaneously, and compact heap 32 unclamps the screw thread mold insert, then just the inner bag of moulding can be taken out.This moment, inner bag was combined with the screw thread mold insert, and had formed sealing chamfering and sealing plane at the oral area of inner bag, had guaranteed simultaneously the flatness of the oral area of inner bag.And lower blow needle 3 ' is still stayed position of readiness.
Need to be at end face (being sealing plane 102 among Fig. 3) the fitting tight circle of inner bag oral area in the use procedure of inner bag.Because the formed splicing line of prior art blow-forming facility run through this end face, certainly will cause sealing ring can't be effectively, reliably the inner bag oral area is sealed.And can be found out by said structure and compacting process, understand the splicing line that may form an annular at this end face, and the diameter of this splicing line is greater than the internal diameter of inner bag oral area, so do not affect the sealing effectiveness of inner bag oral area.That is to say that the diameter of the ring-type boundary of the end face of second shaft shoulder 81 and upper pushing sleeve cylinder 9 is greater than the external diameter of sealing ring.For example, if when needing to use the O RunddichtringO of 78 * 5.3 specifications, the internal diameter of then going up the pushing sleeve cylinder need to be greater than 78+5.3+5.3=88.6 (mm).
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make various changes or modifications to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. inner container opening molding device is characterized in that it comprises:
Blow needle once, the top of this time blow needle is provided with some Angle Pins, and the upper end of described Angle Pin is free end, and the lower end is stiff end, and this free end is away from the axis of this time blow needle, and this stiff end links to each other with this time blow needle and near this axis;
One is set in the outer stationary magazine creel of this time blow needle, the upper portion side wall of this stationary magazine creel is along being circumferentially with some through holes, all plug in each described through hole one with this Angle Pin compact heap one to one, the middle part of this compact heap is equipped with an inclined ramp adaptive with corresponding this Angle Pin; On this stationary magazine creel, the below that is positioned at described through hole has first shaft shoulder that is used for supporting a screw thread mold insert, the external diameter of this first shaft shoulder equals the internal diameter of the oral area of inner bag to be blown; The axial distance of the lower limb of this first shaft shoulder and this through hole equals the axial length of this screw thread mold insert; And
One affixed with this time blow needle, be used for driving the pull down mechanism that relative this stationary magazine creel of this time blow needle moves downward.
2. inner container opening molding device as claimed in claim 1, it is characterized in that, the top of this time blow needle has a collar flange, and this Angle Pin is located at the upper surface of this collar flange, and the stiff end of this Angle Pin compared to the edge of this collar flange more close this axis.
3. inner container opening molding device as claimed in claim 1 is characterized in that, a sheathed cooling cover also between this stationary magazine creel and this time blow needle forms a cooling chamber, accommodating cooling medium in this cooling chamber between this cooling cover and this stationary magazine creel.
4. such as each described inner container opening molding device among the claim 1-3, it is characterized in that, this inner container opening molding device comprises that also one is set in the outer upper pushing sleeve cylinder of this stationary magazine creel, upward the external diameter of pushing sleeve cylinder end face is greater than the external diameter of this inner bag oral area, and internal diameter of pushing sleeve cylinder is less than the external diameter of this inner bag oral area on this; And one with should connect, be used for driving the upper pushing mechanism that relative this stationary magazine creel of pushing sleeve cylinder moves up on this by upper pushing sleeve cylinder.
5. inner container opening molding device as claimed in claim 4 is characterized in that, also is provided with one second shaft shoulder on this stationary magazine creel, and this second shaft shoulder is positioned at the below of this first shaft shoulder; The external diameter of this second shaft shoulder is greater than the internal diameter of this inner bag oral area, less than the external diameter of this inner bag oral area.
6. inner container opening molding device as claimed in claim 5 is characterized in that, pushing mechanism and this pull down mechanism are respectively an oil cylinder on this.
7. inner container opening molding device as claimed in claim 1 is characterized in that, also is arranged with an elastic mechanism on this time blow needle.
8. inner container opening molding device as claimed in claim 7 is characterized in that, this elastic mechanism is spring.
9. inner container opening molding device as claimed in claim 1 is characterized in that, the angle of described Angle Pin and this axis is 45 °～60 °.
10. inner container opening molding device as claimed in claim 1 is characterized in that, the top of this through hole on each described stationary magazine creel is equipped with one for the groove of dodging of dodging described Angle Pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110291186.7A CN103029287B (en) | 2011-09-29 | 2011-09-29 | Inner container mouth molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110291186.7A CN103029287B (en) | 2011-09-29 | 2011-09-29 | Inner container mouth molding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029287A true CN103029287A (en) | 2013-04-10 |
| CN103029287B CN103029287B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110291186.7A Active CN103029287B (en) | 2011-09-29 | 2011-09-29 | Inner container mouth molding device |
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| Country | Link |
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| CN (1) | CN103029287B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997544A (en) * | 2021-10-18 | 2022-02-01 | 佛山市工正包装设备科技股份有限公司 | Forming method of PP small-caliber infusion bottle and infusion bottle |
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| US3825389A (en) * | 1971-07-01 | 1974-07-23 | Siemag Siegener Masch Bau | Molding hollow articles |
| EP0587027A1 (en) * | 1992-09-09 | 1994-03-16 | Mitsubishi Gas Chemical Company, Inc. | Drive apparatus for driving movable member in plastic molding die apparatus |
| CN201195390Y (en) * | 2008-04-15 | 2009-02-18 | 施金亨 | Blowing mechanism of extrusion-blow shaping machine |
| CN101544051A (en) * | 2008-03-28 | 2009-09-30 | 上海开能环保设备股份有限公司 | Method for producing fiber reinforced plastic pressure container |
| CN201333772Y (en) * | 2009-01-04 | 2009-10-28 | 中山志和家电制品有限公司 | Small side core-pulling mechanism |
| CN201913737U (en) * | 2010-12-01 | 2011-08-03 | 陈泰宇 | Air blowing device for die |
| CN102152471A (en) * | 2011-01-26 | 2011-08-17 | 浙江德玛克机械有限公司 | Hot-filling stretching rod connecting device for plastic bottle-blowing machine |
| CN202241949U (en) * | 2011-09-29 | 2012-05-30 | 上海开能环保设备股份有限公司 | Inner container opening molding device |
-
2011
- 2011-09-29 CN CN201110291186.7A patent/CN103029287B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3825389A (en) * | 1971-07-01 | 1974-07-23 | Siemag Siegener Masch Bau | Molding hollow articles |
| EP0587027A1 (en) * | 1992-09-09 | 1994-03-16 | Mitsubishi Gas Chemical Company, Inc. | Drive apparatus for driving movable member in plastic molding die apparatus |
| CN101544051A (en) * | 2008-03-28 | 2009-09-30 | 上海开能环保设备股份有限公司 | Method for producing fiber reinforced plastic pressure container |
| CN201195390Y (en) * | 2008-04-15 | 2009-02-18 | 施金亨 | Blowing mechanism of extrusion-blow shaping machine |
| CN201333772Y (en) * | 2009-01-04 | 2009-10-28 | 中山志和家电制品有限公司 | Small side core-pulling mechanism |
| CN201913737U (en) * | 2010-12-01 | 2011-08-03 | 陈泰宇 | Air blowing device for die |
| CN102152471A (en) * | 2011-01-26 | 2011-08-17 | 浙江德玛克机械有限公司 | Hot-filling stretching rod connecting device for plastic bottle-blowing machine |
| CN202241949U (en) * | 2011-09-29 | 2012-05-30 | 上海开能环保设备股份有限公司 | Inner container opening molding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997544A (en) * | 2021-10-18 | 2022-02-01 | 佛山市工正包装设备科技股份有限公司 | Forming method of PP small-caliber infusion bottle and infusion bottle |
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| CN103029287B (en) | 2014-12-10 |
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Address after: No. 508 and No. 518 Chuansha Zhenchuan Road, Pudong New District, Shanghai, 201200 Patentee after: Kai Ning health technology group Limited by Share Ltd Address before: 201200 518 Chuan Da Road, Pudong New District, Shanghai Patentee before: Shanghai Canature Environmental Products Co., Ltd. |