CN102218791B - Feed and discharge mechanism for plastic bottle cap extruding machine - Google Patents
Feed and discharge mechanism for plastic bottle cap extruding machine Download PDFInfo
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- CN102218791B CN102218791B CN 201010152482 CN201010152482A CN102218791B CN 102218791 B CN102218791 B CN 102218791B CN 201010152482 CN201010152482 CN 201010152482 CN 201010152482 A CN201010152482 A CN 201010152482A CN 102218791 B CN102218791 B CN 102218791B
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- vacuum
- disc
- bottle cap
- discharging
- plastic bottle
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Abstract
The invention discloses a feed and discharge mechanism for plastic bottle cap extruding machine, which comprises a spindle mounted in a spindle seat, a rotating wheel mounted outside the spindle, a gas circuit distributor mounted below the spindle as well as a feed disc and a discharge flying disc mounted on the spindle. The feed and discharge mechanism for plastic bottle cap extruding machine ischaracterized in that: the gas circuit distributor comprises an intake disc and an exhaust disc; an intake hole is arranged in the intake disc and is connected with the gas source of a gas compressorby an intake pipe; an exhaust hole is arranged in the exhaust disc and is connected with a gas pipe; a hollow cavity of the gas pipe in which the spindle is inserted is connected with a gas conveyingchannel of the feed disc; the gas conveying channel of the feed disc is provided with a pneumatic port; a material cutter holder and a material cutter are mounted below the feed disc aiming at the pneumatic port; a plunger is mounted in the pneumatic port; the plunger is provided with a return spring; a suction disc is arranged below the discharge flying disc; a division plate is arranged betweenthe suction disc and the feed disc; a vacuum hood is arranged on the suction disc; a vacuum joint is mounted on the vacuum hood; a vacuum pipe is connected with a vacuum pump by the vacuum joint; thesuction disc is provided with a vacuum channel and a vacuum suction hole; a vacuum gas chamber in the vacuum hood is communicated with the vacuum channel; and the edge of the discharge flying disc isprovided with a poking tooth and a bottle cap console.
Description
Technical field
The present invention relates to plastic bottle cap extruding machine charging and moulding bottle cap delivering mechanism, belong to the plastics machinery field.
Background technology
The equipment of the bottle caps such as multistation processing mineral water bottle, oil bottle and medicine bottle, comprise plastic extruder and capping machine two large divisions, behind the extruder extrusion plastic, the plastics that need intermediate feed mechanism that heat is melted are delivered in the capping machine mould, and also need middle discharge mechanism that the moulding bottle cap is taken out after plastics that capping machine melts heat are pressed into bottle cap, therefore, the plastic bottle closure extrusion equipment need to dispose charging and discharging mechanism, or claiming the intermediate mechanical hand, bottle cap is taken out on the one hand feeding on the other hand.Mechanism's kind that the prior art plastic bottle cap extruding machine can be finished charging and discharging is a lot, can be by the dish type system of rotation, and one of them be entry table, cutter is drawn together in entry table drive, draws together the heat that cutter extrudes extruder and melts the mold cavity that plastics are delivered to capping machine; Another is the discharging flying disc, there is moving tooth at discharging flying disc edge, moving tooth takes out the moulding bottle cap and delivers to gathering system from the mould of capping machine, for example collecting box or conveyer belt, but there is following shortcoming in such prior art: because the speed of capping machine is very fast, per minute will be processed a hundreds of bottle cap, entry table light relies on to be drawn together cutter and melts plastics with heat to deliver to the blanking of die cavity (feeding) incomplete, the position is inaccurate, speed is fast not, poor reliability, percent defective is high, has affected production efficiency and the crudy of plastic bottle closure.On the other hand, because the speed of capping machine is fast, the speed of discharging flying disc is necessary fast rotational also, thereby the centrifugal force of flying disc is very large, and after bottle cap entered in the moving tooth of flying disc, outwards flying out at ultracentrifugal effect lower bottle cap dapped, almost as the object blast, thereby bottle cap collision injury, and collect difficulty, affected again the shaped article quality.
Summary of the invention
The objective of the invention is in order to overcome the shortcoming of prior art, provide a kind of feed table blanking (feeding) accurately, fully, speed is fast, good reliability; It is stable that the discharging flying disc is sent bottle cap, avoid dishing out and having damaged bottle cap owing to the effect of centrifugal force, and the plastic bottle cap extruding machine charging and discharging mechanism that is conducive to collect.
Plastic bottle cap extruding machine of the present invention advances, the technical scheme of discharging mechanism is: comprise rack-mounted spindle drum, main shaft is installed in the spindle drum, main shaft is installed moving runner outward, moving runner is driven by power, gas path distributor is installed in the main shaft bottom, main shaft top is installed into charging tray and discharging flying disc, it is characterized in that described gas path distributor comprises air inlet disk, the dish of giving vent to anger, an air admission hole is arranged in the air inlet disk, air admission hole connects air inlet pipe to the air compressor machine source of the gas, in the dish of giving vent to anger, be shaped with a plurality of ventholes, each venthole connects respectively appendix, each root appendix inserts the cavity of main shaft to the gas transmission road of entry table, the entry table gas transmission road mouth of calming the anger, install under the entry table for the mouth of calming the anger and draw together the material tool rest, drawing together the material tool rest is equipped with and draws together the material cutter, in the mouth of calming the anger, plunger is installed, plunger has back-moving spring, the suction dish is arranged under the discharging flying disc, between suction dish and the entry table demarcation strip is arranged, at the suction dish vacuum (-tight) housing is arranged, vacuum adapter is installed on the vacuum (-tight) housing, vacuum adapter connects vacuum tube to vavuum pump, the suction dish is shaped with vacuum road and vacuum suction hole, the vacuum road is led in vacuum room in the vacuum (-tight) housing, and the edge of discharging flying disc is shaped with moving tooth and has bottle cap configuration mouth, and the vacuum suction hole is corresponding with bottle cap configuration mouth.
The invention discloses a kind of plastic bottle cap extruding machine charging and discharging mechanism, the most outstanding characteristics are: the one, and entry table has the moving plunger of air zone of pressure, when the material cutter drawn together below being installed in entry table is drawn together from the extruder crowded material mouth after heat melts plastics, be sent to the die cavity position of capping machine, to draw together the material cutter and draw together the heat of material in the tool rest by plunger and melt the mandatory die cavity that is pressed into of plastics, blanking very accurately, very complete, speed is very fast, good reliability has improved production efficiency and product quality; The 2nd, for the configuration of the bottle cap between the moving tooth of the discharging flying disc mouthful lower vacuum suction hole that the suction dish of pull of vacuum is arranged, the vacuum suction hole holds plastic bottle closure, the discharging flying disc is when High Rotation Speed, plastic bottle closure can not dished out because of centrifugal force, avoid the plastic bottle closure collsion damage, further guarantee product quality, and be conducive to orderly the collecting in conveyer belt or the packing case of plastic bottle closure.
Plastic bottle cap extruding machine charging and discharging of the present invention mechanism, adjustable plate and adjusting nut are installed in described main shaft bottom, adjustable plate and give vent to anger the dish between the balance adjustment spring is arranged, the support of balance adjustment spring to the dish of giving vent to anger arranged, be close to the air inlet disk that does not rotate when giving vent to anger disc spins, contact with each other stablely, reliable, gas transmission is effective.Venthole in the described dish of giving vent to anger is 6～12 holes, upper available 6 holes of the dish of giving vent to anger or 8 holes or 10 holes or 12 holes etc.Described air inlet disk connects the air pressure time-controlling arrangement, and the air pressure time-controlling arrangement comprises adjustment disk and drive the handle of adjustment disk that adjustment disk is connected on the frame.Had the air pressure time-controlling arrangement that the displacement of air inlet disk is regulated control, it is stable that gas transmission is distributed.The described tool rest top of drawing together is columnar plunger bushing, and plunger bushing is pacified into the entry table mouth of calming the anger, and plunger is positioned at plunger bushing, the top of drawing together tool rest is that cylindrical plunger cover peace enters entry table and calms the anger behind the mouth, can be screwed, make draw together tool rest be connected with entry table firm, easy for installation.Plunger is matched with the cylindrical plunger cover contact long service life.The described tool rest bottom of drawing together is U font knife rest, and U font knife rest matches with the slotted hole of drawing together the material cutter through screw, draws together and can carry out up-down adjustment to drawing together the material cutter after the material cutter is shaped with slotted hole.Every group of the suction hole of described suction dish is 5 holes, and area is large after arranging with 5 holes, and is large to the bottle cap contact-making surface, holds steadily.Match with two driver plates in the described discharging flying disc outside.Bottle cap by the discharging flying disc after, delivered in conveyer belt or the collecting box by two driver plates again.
Description of drawings
Fig. 1 is the structural representation of plastic bottle cap extruding machine charging and discharging of the present invention mechanism;
Fig. 2 is the A-A direction schematic cross-section of Fig. 3;
Fig. 3 is the entry table schematic top plan view;
Fig. 4 is suction dish elevational schematic view;
Fig. 5 is the B-B direction schematic cross-section of Fig. 4;
Fig. 6 draws together the material tool rest and draws together material cutter schematic diagram;
Fig. 7 draws together the material cutter to be shaped with the slotted hole schematic diagram.
The specific embodiment
The present invention relates to a kind of plastic bottle cap extruding machine advances, discharging mechanism, such as Fig. 1-shown in Figure 7, comprise rack-mounted spindle drum 11, main shaft 10 is installed in the spindle drum 11, main shaft 10 outer installation moving runners 12, moving runner 12 is driven by power, gas path distributor is installed in main shaft 10 bottoms, main shaft top is installed into charging tray 9 and discharging flying disc 7, it is characterized in that described gas path distributor comprises air inlet disk 20, give vent to anger and coil 21, an air admission hole 201 is arranged in the air inlet disk 20, air admission hole 201 connects air inlet pipe 202 to the air compressor machine source of the gas, in the dish 21 of giving vent to anger, be shaped with a plurality of ventholes 211, each venthole 211 connects respectively appendix 212, each root appendix 212 inserts the cavity 101 of main shaft 10 to the gas transmission road 91 of entry table 9, entry table gas transmission road 91 calms the anger mouthfuls 92, material tool rest 3 is drawn together in 9 times installations of entry table for the mouth 92 of calming the anger, draw together the material tool rest 3 be equipped with draw together the material cutter 31, in the mouth 92 of calming the anger, plunger 1 is installed, plunger 1 has back-moving spring 2,7 times suction dish 8 is arranged at the discharging flying disc, between suction dish 8 and the entry table 9 demarcation strip 81 is arranged, at suction dish 8 vacuum (-tight) housing 6 is arranged, vacuum adapter 5 is installed on the vacuum (-tight) housing 6, vacuum adapter 5 connects vacuum tube to vavuum pump, suction dish 8 is shaped with vacuum road 82 and vacuum suction hole 83, vacuum roads 82 are led in vacuum room 61 in the vacuum (-tight) housing 6, and the edge of discharging flying disc 7 is shaped with moving tooth 71 and has bottle cap configuration mouth 72, and vacuum suction hole 83 is corresponding with bottle cap configuration mouth 72.The most outstanding characteristics of this programme are: the one, and entry table 9 has the moving plunger 1 of air zone of pressure, when the material cutter 31 drawn together below being installed in entry table 9 is drawn together from the extruder crowded material mouth after heat melts plastics, be sent to the die cavity position of capping machine, to draw together material cutter 31 by plunger 1 and melt the mandatory die cavity that is pressed into of plastics with the heat of drawing together in the material tool rest 3, blanking very accurately, very complete, speed is very fast, and good reliability has improved production efficiency and product quality; The 2nd, for the configuration of the bottle cap between the moving tooth of the discharging flying disc 7 mouthful lower vacuum suction hole 83 that the suction dish 8 of pull of vacuum is arranged, vacuum suction hole 83 holds plastic bottle closure, discharging flying disc 7 is when High Rotation Speed, plastic bottle closure can not dished out because of centrifugal force, avoid the plastic bottle closure collsion damage, further guarantee product quality, and be conducive to orderly the collecting in conveyer belt or the packing case of plastic bottle closure.Adjustable plate 22 and adjusting nut 23 are installed in described main shaft 10 bottoms, adjustable plate 22 and the dish of giving vent to anger have balance adjustment spring 24 between 21, dish 21 the support of giving vent to anger of 24 pairs on balance adjustment spring has been arranged, be close to the air inlet disk 20 that does not rotate when giving vent to anger dish 21 rotation, contact with each other stablely, reliable, gas transmission is effective.Venthole 211 in the described dish 21 of giving vent to anger is 6～12 holes, available 6 holes or 8 holes or 10 holes or 12 holes etc. on the dish 21 of giving vent to anger.Described air inlet disk 20 connects the air pressure time-controlling arrangement, and the air pressure time-controlling arrangement comprises adjustment disk 205 and drive the handle 206 of adjustment disk that adjustment disk is connected on the frame.Had the air pressure time-controlling arrangement that control is regulated in the gas transmission of air inlet disk, it is stable that gas transmission is distributed.Described tool rest 3 tops of drawing together are columnar plunger bushing 35, plunger bushing 35 peace enters entry table 9 and calms the anger in the mouth, plunger 1 is positioned at plunger bushing 35, the top of drawing together tool rest 3 is that cylindrical plunger cover 35 peaces enter entry table 9 and calm the anger behind the mouth, can be shaped with screw hole 93 at the edge of entry table is screwed, make draw together tool rest 3 be connected with entry table 9 firm, easy for installation.Described tool rest 3 bottoms of drawing together are U font knife rest, and U font knife rest matches with the slotted hole 33 of drawing together material cutter 31 through screw 32, draw together material cutter 31 and are shaped with that slotted hole 33 is rear can to carry out up-down adjustment to drawing together the material cutter.83 every groups of the suction holes of described suction dish 8 are 5 holes, and as shown in Figure 4, area is large after arranging with 5 holes, and is large to the bottle cap contact-making surface, holds steadily.Match with two driver plates 75 in described discharging flying disc 7 outsides.Bottle cap by discharging flying disc 7 after, delivered in conveyer belt or the collecting box by two driver plates 75 again.
Plastic bottle cap extruding machine of the present invention advances, the course of work of discharging mechanism, main shaft 10 rotates under the drive of moving runner 12 (synchronous pulley of available complete machine), the air compressor source of the gas is to 201 gas transmissions of air inlet disk 20 air admission holes, air inlet disk 20 does not rotate, give vent to anger and make each venthole 211 interruptions meet and bring about the desired sensation with air admission hole 201 when dish 21 rotates, each root appendix 212 is positioned in the cavity 101 of main shaft 10, main shaft 10 is made hollow, but main shaft cavity head is sealed with the plug of opening the gas transmission pore in the lower end, appendix inserts from the perforate of plug on the one hand, the main shaft cavity is communicated with the vacuum room at top, but also available other obstruction mode in actual product, appendix 212 from main shaft cavity 101 out after, duct by suction dish 8 and demarcation strip 81, then appendix is opened on the gas transmission road 91 of entry table 9, the gas transmission road calm the anger mouthfuls 92 for plunger 1 qi of chong channel ascending adversely presses down, the plastics that heat melted by plunger are mandatory to be pressed onto in the die cavity of capping machine, fast, accurately, fully and reliable blanking, overcome prior art and occurred more waste product owing to blanking is unreliable, improve qualification rate, improved production efficiency.Respectively draw together material cutter 31 along with after main shaft 10 rotations melt the heat on the extruder extrusion die plastics and draw together next piece and entry table 9 a plurality of draw together material tool rest 3, deliver to again the die cavity of capping machine.On the top of suction dish 8 vacuum (-tight) housing 6 is arranged, vacuum adapter 5 is installed on the vacuum (-tight) housing is connected vacuum tube to vavuum pump, the negative pressure of vavuum pump is guided to the vacuum room 61 of vacuum (-tight) housing 6, vacuum road 82 by suction dish 8 is opened on vacuum suction hole 83 again, vacuum road 82 can be built in the bottom surface of suction dish 8, gas transmission road 91 can be shaped with entry table 9 above, the centre is separated by demarcation strip 81, suction dish 8 has fixing hole 85, in entry table 9 and demarcation strip 81 fixing hole is arranged also, the three is fixed connection, and the negative pressure in vacuum road 82 and vacuum suction hole 83 is continuous, the air pressure of gas transmission road 91 and the mouth 92 of calming the anger is interrupted, and plunger 1 resetted under the effect of spring force when not qi of chong channel ascending adversely was pressed.The bottle cap that the position in vacuum suction hole 83 just in time faces toward between the discharging flying disc moving tooth 71 in the suction dish 8 disposes below the mouth 72, when taking out the plastic bottle closure after compressing from the capping machine mould after, the moving tooth 71 at discharging flying disc 7 edges held by the vacuum suction hole 83 of suction dish 8, because the process velocity of capping machine is fast, per minute is more than 300～400, so the rotating speed of discharging flying disc 7 is also very fast, although bottle cap is pushed away by the direction of moving tooth 71 toward rotation, but centrifugal force is also large, bottle cap is dished out, collsion damage, the meeting that has is jumped to and is caused adverse consequences in the die cavity, had make behind the negative inspiratory pressure the firm suction of bottle cap on suction dish 8 along with moving tooth 71 is shifted discharge pit onto, exported by the blanking road.Overcome plastic bottle closure and hindered by clashing and breaking, further guaranteed the quality of product, be conducive to simultaneously the collection of plastic bottle closure.
Claims (8)
1. plastic bottle cap extruding machine advances, discharging mechanism, comprise rack-mounted spindle drum (11), main shaft (10) is installed in the spindle drum (11), the outer moving runner (12) of installing of main shaft (10), moving runner (12) is driven by power, gas path distributor is installed in main shaft (10) bottom, main shaft top is installed into charging tray (9) and discharging flying disc (7), it is characterized in that described gas path distributor comprises air inlet disk (20), the dish (21) of giving vent to anger, an air admission hole (201) is arranged in the air inlet disk (20), air admission hole (201) connects air inlet pipe (202) to the air compressor machine source of the gas, in the dish (21) of giving vent to anger, be shaped with a plurality of ventholes (211), each venthole (211) connects respectively appendix (212), each root appendix (212) inserts the cavity (101) of main shaft (10) to the gas transmission road (91) of entry table (9), entry table gas transmission road (91) calm the anger mouthful (92), draw together material tool rest (3) for lower installation of the entry table (9) of calm the anger mouthful (92), draw together the material tool rest (3) be equipped with draw together the material cutter (31), in calm the anger mouthful (92), plunger (1) is installed, plunger (1) has back-moving spring (2), suction dish (8) is arranged under discharging flying disc (7), between suction dish (8) and the entry table (9) demarcation strip (81) is arranged, at suction dish (8) vacuum (-tight) housing (6) is arranged, the upper vacuum adapter (5) of installing of vacuum (-tight) housing (6), vacuum adapter (5) connects vacuum tube to vavuum pump, suction dish (8) is shaped with vacuum road (82) and vacuum suction hole (83), vacuum road (82) is led in vacuum room (61) in the vacuum (-tight) housing (6), the edge of discharging flying disc (7) is shaped with moving tooth (71) and has bottle cap configuration mouthful (72), and vacuum suction hole (83) are corresponding with bottle cap configuration mouthful (72).
2. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism, it is characterized in that described main shaft (10) bottom installs adjustable plate (22) and adjusting nut (23), adjustable plate (22) and give vent to anger balance adjustment spring (24) is arranged between the dish (21).
3. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism is characterized in that the venthole (211) in the described dish (21) of giving vent to anger is 6～12 holes.
4. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism, it is characterized in that described air inlet disk (20) connects the air pressure time-controlling arrangement, the air pressure time-controlling arrangement comprises adjustment disk (205) and drives the handle (206) of adjustment disk that adjustment disk is connected on the frame.
5. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism, it is characterized in that described to draw together material tool rest (3) top be columnar plunger bushing (35), plunger bushing (35) peace enters entry table (9) calms the anger mouthful (92), and plunger (1) is positioned at plunger bushing (35).
6. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism is characterized in that described to draw together material tool rest (3) bottom be U font knife rest, U font knife rest through screw (32) with draw together the slotted hole (33) of expecting cutter (31) and match.
7. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism is characterized in that every group of the suction hole (83) of described suction dish (8) is 5 holes.
8. plastic bottle cap extruding machine charging and discharging as claimed in claim 1 mechanism is characterized in that described discharging flying disc (7) outside matches with pair driver plates (75).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152482 CN102218791B (en) | 2010-04-15 | 2010-04-15 | Feed and discharge mechanism for plastic bottle cap extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152482 CN102218791B (en) | 2010-04-15 | 2010-04-15 | Feed and discharge mechanism for plastic bottle cap extruding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102218791A CN102218791A (en) | 2011-10-19 |
| CN102218791B true CN102218791B (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010152482 Expired - Fee Related CN102218791B (en) | 2010-04-15 | 2010-04-15 | Feed and discharge mechanism for plastic bottle cap extruding machine |
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| CN (1) | CN102218791B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837387B (en) * | 2012-09-20 | 2015-04-22 | 台州市黄岩凯普机械有限公司 | Piston and double blowing feeding device for scraping knife of extrusion molding bottle cap machine |
| CN103112151B (en) * | 2012-12-31 | 2015-05-27 | 湖南汇一制药机械有限公司 | Continuous cap making machine |
| CN104608420B (en) * | 2015-01-30 | 2016-08-17 | 西安中科光电精密工程有限公司 | A kind of blanking system of full-automatic mold pressing modular system |
| CN106827344A (en) * | 2017-02-27 | 2017-06-13 | 台州市黄岩远大机械制造有限公司 | A kind of plastic bottle closure machine |
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| US3827843A (en) * | 1972-01-26 | 1974-08-06 | Sycamore Mfg Co Inc | Apparatus for lining bottle crowns with thermoplastic material |
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| CN2305371Y (en) * | 1996-09-25 | 1999-01-27 | 机械工业部北京机械工业自动化研究所 | Automatic forming machine for aluminium plastic composite bottle cap |
| CA2452293A1 (en) * | 2002-12-10 | 2004-06-10 | Cellresin Technologies, Llc | Grafted cyclodextrin |
| CN101125462A (en) * | 2007-09-03 | 2008-02-20 | 金土良 | Plastic bottle cap mould pressing-folding integrated machine |
| CN101628455A (en) * | 2009-08-04 | 2010-01-20 | 孙连根 | Label-shedding and capping machine for terylene bottle |
| CN201659659U (en) * | 2010-04-15 | 2010-12-01 | 蒋乐庆 | Feeding and discharging mechanism of plastic bottle cap extruding machine |
-
2010
- 2010-04-15 CN CN 201010152482 patent/CN102218791B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827843A (en) * | 1972-01-26 | 1974-08-06 | Sycamore Mfg Co Inc | Apparatus for lining bottle crowns with thermoplastic material |
| US4797237A (en) * | 1987-05-04 | 1989-01-10 | Floyd V. Hammer | Method for recycling a beverage container |
| CN2305371Y (en) * | 1996-09-25 | 1999-01-27 | 机械工业部北京机械工业自动化研究所 | Automatic forming machine for aluminium plastic composite bottle cap |
| CA2452293A1 (en) * | 2002-12-10 | 2004-06-10 | Cellresin Technologies, Llc | Grafted cyclodextrin |
| CN101125462A (en) * | 2007-09-03 | 2008-02-20 | 金土良 | Plastic bottle cap mould pressing-folding integrated machine |
| CN101628455A (en) * | 2009-08-04 | 2010-01-20 | 孙连根 | Label-shedding and capping machine for terylene bottle |
| CN201659659U (en) * | 2010-04-15 | 2010-12-01 | 蒋乐庆 | Feeding and discharging mechanism of plastic bottle cap extruding machine |
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| CN102218791A (en) | 2011-10-19 |
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