CN103029287B - Inner container mouth molding device - Google Patents
Inner container mouth molding device Download PDFInfo
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- CN103029287B CN103029287B CN201110291186.7A CN201110291186A CN103029287B CN 103029287 B CN103029287 B CN 103029287B CN 201110291186 A CN201110291186 A CN 201110291186A CN 103029287 B CN103029287 B CN 103029287B
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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 one for blowing the cavity of inner bag after having comprised 1, two inner bag mould matched moulds of two opposed inner bag moulds.Below this chamber, be provided with blow needle support 31, on this lower blow needle 31, connect blow needle 3 on by a cylinder, the screw thread mold insert 2 of being combined with inner bag to be formed is screwed in to the top of lower blow needle 3.
Whole lower blow needle 3 is coated laggard matched moulds by material base 10 between two inner bag moulds 1, after matched moulds, lower blow needle 3 pulls downwards screw thread mold insert 2 is combined with the end of inner bag, then discharge gases at high pressure by lower blow needle 3 and start to blow inner bag, inner bag basic forming after maintenance a period of time, then inner bag semi-finished product are taken out in die sinking.
Fig. 2 adopts above-mentioned forming device of plastic inner container and method thereof to blow the half-finished top structure of inner bag forming.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 (referring to Fig. 3 appropriate section), forms a sealing chamfering 101 (referring to Fig. 3 appropriate section) in the inner side of opening simultaneously.
Traditional forming method is after the blow molding of inner bag semi-finished product, then forms sealing chamfering 101 and sealing plane 102 by rear road manufacturing procedure.This road manufacturing procedure needs the extra process equipment that drops into complete.Particularly, in the time that product is very large, the floor space of process equipment also correspondingly increases, and even needs 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; When serious, can cause goods seal failure, produce defective products.In the time that output is very large, will bring very large facility if can save this road manufacturing procedure, significantly boost productivity.
In addition, due to screw thread mold insert of the prior art with lower blow needle for being threaded, inevitablely in the time taking off inner bag lower blow needle is disassembled simultaneously, then manually back out lower blow needle.Before the next inner bag of blowing, this lower blow needle need to be reinstalled on blowing down needle rack, and next screw thread mold insert is screwed onto on lower blow needle.For the larger situation of output, the device of prior art and blowing method thereof have caused blowing complex procedures, simultaneously the lower problem of yield rate.On the other hand, for operating personnel, operation repeatability is excessive, 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 of shaped device in order to overcome 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, defect 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 lower blow needle is provided with some Angle Pins, and the upper end of described Angle Pin is free end, and lower end is stiff end, and this free end is away from the axis of this lower blow needle, and this stiff end is connected with this lower blow needle and close this axis;
One is set in the stationary magazine creel outside this lower blow needle, the upper portion side wall of this stationary magazine creel is along being circumferentially with some through holes, in each described through hole, all plug one with this Angle Pin compact heap one to one, the middle part of this compact heap be equipped with one with the inclined ramp of corresponding this Angle Pin adaptation; On this stationary magazine creel, the below that is positioned at described through hole has one for supporting first shaft shoulder of 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 lower blow needle, pull down mechanism for driving relative this stationary magazine creel of this lower blow needle to move downward.In the time that this lower blow needle moves downward, the Angle Pin on this lower blow needle also moves 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, plays the object of retaining thread mold insert.
Preferably, the top of this lower 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 is compared to more close this axis, edge of this collar flange.Therefore, Angle Pin forms a leg-of-mutton yielding region 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 screw thread mold insert when compact heap is regained to this axis, when guaranteeing the demoulding of screw thread mold insert, can not bump against with compact heap, the phenomenon of snap gauge occurs.
Preferably, a sheathed cooling cover also between this stationary magazine creel and this lower blow needle, forms a cooling chamber between this cooling cover and this stationary magazine creel, accommodating cooling medium in this cooling chamber.
Preferably, this inner container opening molding device also comprises that one is set in the upper pushing sleeve cylinder outside this stationary magazine creel, and on this, the external diameter of pushing sleeve cylinder is greater than the external diameter of this oral area, and on this, the internal diameter of pushing sleeve cylinder is less than the external diameter of this oral area; And one with on this pushing sleeve cylinder connect, for driving the upper pushing mechanism that on this, relative this stationary magazine creel of pushing sleeve cylinder moves up.
Preferably, be also 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, is less than the external diameter of this oral area.
Preferably, on this, pushing mechanism and this pull down mechanism are respectively an oil cylinder.
Preferably, on this lower blow needle, be also arranged with an elastic mechanism.
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 dodging the groove of dodging of described Angle Pin.
In the present invention, above-mentioned optimum condition can be combined on the basis that meets this area general knowledge, obtains the 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 drive compact heap to compress or discharge screw thread mold insert, thereby quickly and efficiently screw thread mold insert and inner bag body are together taken out from inner bag mould.Save the time of blow needle under dismounting, effectively improved production efficiency.
Further, by upper pushing mechanism, the end face of inner bag opening is compressed to operation, effectively avoid the formation of splicing line, and can form sealing chamfering simultaneously, omit the operation that Liao Hou road forms sealing chamfering and finishing sealing plane, further improved production efficiency and end product quality.
Brief description of the drawings
Fig. 1 is the structural representation of the shaped device of inner bag oral area in prior art.
Fig. 2 is the inner-tube structure schematic diagram that adopts shaped device of the prior art and method to obtain.
Fig. 3 is the structural representation of the inner bag oral area after moulding.
Fig. 4 is the inner container opening molding device of preferred embodiment of the present invention structural representation under holding state.
Fig. 5 is the structural representation under the inner container opening molding device hold mode in Fig. 4.
Fig. 6 is the partial enlarged drawing of the lower blow needle of inner container opening molding device of the present invention.
Detailed description of the invention
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, on stationary magazine creel 8, form first shaft shoulder 81, the internal diameter adaptation of the top of this stationary magazine creel 8 and screw thread mold insert 2.Wear blow needle 3 ' in these stationary magazine creel 8 inside.The end face of the top self-retaining cylinder 8 of this lower blow needle 3 ' passes.In addition, be provided with a drop-down oil cylinder 42 as pull down mechanism below frame fixed head 44, the piston rod of this drop-down oil cylinder 42 is fixedly connected with this lower blow needle 3 '.Under the driving of drop-down oil cylinder 42, this lower blow needle 3 ' moves up and down at the bearing of trend of this stationary magazine creel 8.
Described in this, the circumferential side wall on the top of stationary magazine creel 8 is provided with four through holes, in each through hole, all slides 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 parts are equipped with an inclined ramp, and the relative bottom, 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, the angle of the axis of inclined ramp and this lower 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.When screw thread mold insert 2 is assembled to behind the top of stationary magazine creel 8, 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 the upper position near its gas outlet of lower blow needle 3 ', 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 collar flange.The upper end of Angle Pin 31 is free end, and this free end is away from the axis of this lower 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 region (seeing Fig. 6) away from a side of this axis and the upper surface of this collar flange.The angle of inclination adaptation of the angle of inclination of this Angle Pin 31 and this inclined ramp.In the process of upwards moving at lower blow needle 3 ' drive Angle Pin 31, Angle Pin 31 promotes compact heap 32 towards the direction of the axis away from lower blow needle 3 ', impel the lower surface of compact heap 32 to press in the upper surface of screw thread mold insert 2, screw thread mold insert 2 is fixed on to the top of stationary magazine creel 8 under the acting in conjunction of above-mentioned first shaft shoulder 81, just can starts to blow operation.Instantly blow needle 3 ' drives in the process of Angle Pin 31 action downwards, Angle Pin 31 pulls compact heap 32 towards the direction of the axis near lower blow needle 3 ', thereby screw thread mold insert 2 and stationary magazine creel 8 pines are joined, make the inner bag 10 ' (seeing Fig. 5) and the together demoulding of screw thread mold insert 2 of moulding, 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 '.Between this cooling cover 5 and stationary magazine creel 8, form the cooling chamber 7 of a column.In this cooling chamber 7, be equipped with cooling medium, 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.In this cooling cover 5, be also provided with a spring 6 as resetting-mechanism, 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.On this, the bottom of pushing sleeve cylinder 9 is fixedly arranged on the upper surface of push pedal 45 on.On this, push pedal 45 and two upper push oil cylinder 41,43 as upper pushing mechanism connect.Below first shaft shoulder 81 of stationary magazine creel 8, be also 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, is less than again the internal diameter of the oral area 11 after left and right inner bag mould 1 ' matched moulds simultaneously.And upper pushing sleeve cylinder 9 internal diameters are less than the internal diameter of this oral area 11, upper pushing sleeve cylinder 9 external diameters are greater than the internal diameter of this oral area 11.
After two inner bag mould 1 ' matched moulds, below oral area 11, form a binder chamber 12.The internal diameter on these 12 tops, binder chamber equals the external diameter of pushing sleeve cylinder 9 on this, and enters/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 to move upward, material base to the oral area 11 that is positioned at inner bag mould 1 ' carries out compacting operation, makes the coated more tight, firm of the material base of inner bag 10 ' oral area and screw thread mold insert 2.Upper pushing sleeve cylinder 9 keeps upper push position until before die sinking.Now, the end face of second shaft shoulder 82 of the end face of upper pushing sleeve cylinder 9 and stationary magazine creel 8 is concordant.That is to say, in the process of carrying out compacting operation, second shaft shoulder 82 of stationary magazine creel 8 has formed the end face of inner bag after moulding (being sealing plane 102 in Fig. 3) jointly with the end face of upper pushing sleeve cylinder 9, thereby avoids forming step at the end face of inner bag.When die sinking, three oil cylinders reset simultaneously, and compact heap 32 unclamps screw thread mold insert, then just the inner bag of moulding can be taken out.Now inner bag is combined with screw thread mold insert, and has formed sealing chamfering and sealing plane at the oral area of inner bag, has ensured the flatness of the oral area of inner bag simultaneously.And lower blow needle 3 ' is still stayed position of readiness.
Need to be at the end face of inner bag oral area (being sealing plane 102 in Fig. 3) fitting tight circle in the use procedure of inner bag.The splicing line forming due to prior art blow-forming facility has run through this end face, certainly will cause sealing ring cannot be effectively, reliably inner bag oral area is sealed.And can be found out by said structure and compacting process, can may form an annular splicing line 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, the diameter of the ring-type boundary of the end face of second shaft shoulder 82 and upper pushing sleeve cylinder 9 is greater than the external diameter of sealing ring.For example, while if desired using the O RunddichtringO of 78 × 5.3 specifications, the internal diameter of going up 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 is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and amendment all fall into protection scope of the present invention.
Claims (10)
1. an inner container opening molding device, is characterized in that, it comprises:
Blow needle once, the top of this lower blow needle is provided with some Angle Pins, and the upper end of described Angle Pin is free end, and lower end is stiff end, and this free end is away from the axis of this lower blow needle, and this stiff end is connected with this lower blow needle and close this axis;
One is set in the stationary magazine creel outside this lower blow needle, the upper portion side wall of this stationary magazine creel is along being circumferentially with some through holes, in each described through hole, all plug one with this Angle Pin compact heap one to one, the middle part of this compact heap be equipped with one with the inclined ramp of corresponding this Angle Pin adaptation; On this stationary magazine creel, the below that is positioned at described through hole has one for supporting first shaft shoulder of 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 lower blow needle, pull down mechanism for driving relative this stationary magazine creel of this lower blow needle to move downward.
2. inner container opening molding device as claimed in claim 1, it is characterized in that, the top of this lower 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 is compared to more close this axis, edge of this collar flange.
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 lower blow needle, forms a cooling chamber between this cooling cover and this stationary magazine creel, accommodating cooling medium in this cooling chamber.
4. the inner container opening molding device as described in any one in claim 1-3, it is characterized in that, this inner container opening molding device also comprises that one is set in the upper pushing sleeve cylinder outside this stationary magazine creel, on this, the external diameter of pushing sleeve cylinder end face is greater than the external diameter of this inner bag oral area, and on this, the internal diameter of pushing sleeve cylinder is less than the external diameter of this inner bag oral area; And one with on this pushing sleeve cylinder connect, for driving the upper pushing mechanism that on this, relative this stationary magazine creel of pushing sleeve cylinder moves up.
5. inner container opening molding device as claimed in claim 4, is characterized in that, is also 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, is 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, on this, pushing mechanism and this pull down mechanism are respectively an oil cylinder.
7. inner container opening molding device as claimed in claim 1, is characterized in that, on this lower blow needle, is also arranged with an elastic mechanism.
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 dodging the groove of dodging of 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 CN103029287A (en) | 2013-04-10 |
| CN103029287B true CN103029287B (en) | 2014-12-10 |
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Family Applications (1)
| 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) |
Families Citing this family (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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| 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 |
| 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 |
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| CN103029287A (en) | 2013-04-10 |
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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. |