CN104189978B - A kind of assembling device of transfusion device flow regulator - Google Patents

A kind of assembling device of transfusion device flow regulator Download PDF

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Publication number
CN104189978B
CN104189978B CN201410504452.3A CN201410504452A CN104189978B CN 104189978 B CN104189978 B CN 104189978B CN 201410504452 A CN201410504452 A CN 201410504452A CN 104189978 B CN104189978 B CN 104189978B
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rotation seat
roller
vestibule
assembled
seat
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CN104189978A (en
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林军华
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Maider Medical Industry Equipment Co Ltd
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Maider Medical Industry Equipment Co Ltd
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Abstract

The invention provides a kind of assembling device of transfusion device flow regulator, belong to Medical Devices package technique field.It solves the low technical problem of automatic assembling efficiency of existing transfusion device flow regulator.This assembling device includes base, base is provided with the rotation seat that can be rotated, the vestibule of a roller to be assembled can be accommodated by having on rotation seat, roller in vestibule can be rotated with rotation seat, the charging seat of a roller to be assembled can be supplied into the vestibule of rotation seat every time by being fixedly provided with base, charging seat is located on the top of rotation seat, rotation seat to be additionally provided with can promote push rod of the roller to be assembled into shell to be assembled in vestibule after rotation seat rotate in place.Present apparatus energy automatic feed dividing, charging and assembling, it is not necessary to manually roller is assembled in shell, operating efficiency can be greatly improved, reduce hand labor intensity, while the separation roller of the present apparatus, conveying roller, assembling roller are all closely, compact conformation, small volume.

Description

A kind of assembling device of transfusion device flow regulator
Technical field
The invention belongs to Medical Devices package technique field, it is related to a kind of assembling device of transfusion device flow regulator.
Background technology
Transfusion device is primarily used for a kind of common medical treatment consumptive materials of venous transfusion, and it is set up by aseptic process A kind of connecting pipe between vein and decoction.Typically by the connection group such as intravenous needle, helmet, conduit, filter, flow regulator Into flow regulator can adjust the inflow velocity of decoction according to different Man's Demands, generally comprise roller and shell, pass through The medicinal liquid flow that roller extruding woven hose comes in control pipeline, is the important component in transfusion device.Carrying out disposable transfusion device Assembling when, it is necessary to which group is stringed together again after all parts are assembled respectively, the assembling of flow regulator is to need to fill on roller It is fitted in shell and goes.Traditional transfusion device assembling is generally carried out by the way of manual.
China's patent (A of CN 101797406) discloses a kind of infusion apparatus parts and moves assembling equipment automatically, by upper and lower Part automatic delivering mechanism, filtration membrane automatic carry detent mechanism, bonding agent automatic coating and recovering mechanism, upper and lower part Automatic Combined mechanism, fault detection mechanism, finished product counting mechanism, sequence control are collectively constituted.It can be by upper part (upper casing Body or dropping funnel or helmet), lower part (lower house or dropper or puncture needle), diaphragm, bonding agent it is defeated by process automatic Picking, diaphragm Give, diaphragm positioning, bonding agent coating, automatic aligning combination, realize that transfusion device device is (liquid medicine filter, air cleaner, defeated Drop kettle, bottle plug puncture unit) automatic production.In addition, the applicant also applied for automatic a group on transfusion device Fill the patent (A of CN 103520825) of technique.
The apparatus automatization assembling for transfusion device, but the technical scheme of above-mentioned patent are proposed in above-mentioned patent document In fail to disclose how to assemble transfusion device flow regulator, will be influenceed by manual assembly transfusion device flow regulator The operating efficiency of whole transfusion device assembling, and labor intensive.
The content of the invention
The purpose of the present invention be for existing technology exist above mentioned problem there is provided a kind of transfusion device flow regulator Device is assembled, the technical problems to be solved by the invention are how to realize the automatic assembling of transfusion device flow regulator to improve dress Manpower is saved with efficiency.
The purpose of the present invention can be realized by following technical proposal:
A kind of assembling device of transfusion device flow regulator, it is characterised in that the assembling device includes base, the bottom Seat, which is provided with to have on the rotation seat that can be rotated, the rotation seat, can accommodate the vestibule of a roller to be assembled, the hole The roller of intracavitary can be rotated with the rotation seat, and being fixedly provided with the base can be every time to the vestibule of the rotation seat The charging seat of one roller to be assembled of interior supply, the charging seat, which is located on the top of the rotation seat, the rotation seat, also to be set Push rod of the roller to be assembled into shell to be assembled in the vestibule can be promoted after rotation seat rotate in place by having.
The present invention operation principle be:The present apparatus is used to assemble transfusion device flow regulator, mainly by flow regulator Roller be assembled in shell, the sub-material of roller is realized by charging seat, make roller enter rotation seat in, rotated by rotation seat Station to be assembled is delivered to, roller is ejected and entered in shell by push rod, roller and flow regulator shell is realized Assembling.Specifically, the roller of the flow regulator produced is placed into charging seat, then places by charging seat one every time The roller that roller enters in the vestibule of rotation seat, vestibule reaches specified station as rotation seat is rotated, and now the station has to be installed The shell waiting matched somebody with somebody, the shell of flow regulator can be transported using common streamline or manually mode is placed on dress With on station, the import of shell upper roller and the vestibule rotateing in place are just right, the push rod action in rotation seat, will be to be installed in vestibule The roller matched somebody with somebody is released and in jacking shell to be assembled, completes the assembling process of flow regulator.Afterwards, vestibule is with rotation seat time Turn, charging seat places a roller to the vestibule of rotation seat again, carries out the assembling of next round, so circulation.The device can be certainly Dynamic sub-material, charging, it is not necessary to manually roller is assembled in shell, can greatly improve operating efficiency, reduce artificial labor Fatigue resistance, while the separation roller of the present apparatus, conveying roller, assembling roller are all closely, compact conformation, small volume.
In the assembling device of above-mentioned transfusion device flow regulator, the rotation seat and the power that it can be driven to rotate Device one is connected, and the through hole of some rollers to be assembled can be accommodated by having in the charging seat, and roller to be assembled can be in institute State it is in one line in through hole, the through hole and the vestibule be oppositely arranged and in the through hole roller to be assembled can fall into it is described In vestibule, curved baffle is installed with the charging seat, movement locus of the curved baffle along the vestibule is circumferentially disposed, The outer end of the curved baffle is provided with that can make the breach that roller to be assembled passes through, and the push rod is telescopic to be arranged on described turn In dynamic seat and the push rod is towards the vestibule, the power set of the push rod motion can be promoted by being fixedly provided with the base Two.Rotation seat is driven by power set one and can rotated in the present apparatus, and roller to be assembled is placed in the through hole of charging seat, Roller to be assembled is in one line in through hole to enable sequentially to fall, and one can be dropped into the vestibule in each rotation seat and is treated The roller of assembling, then as rotation seat turns to station to be assembled, curved baffle can be prevented in rotation seat rotation process Roller in vestibule comes off, and reaches after assembly station, and power set promote push rod, and push rod promotes the roller in vestibule to be kept off from arc The breach of plate comes out and in jacking shell to be assembled.
In the assembling device of above-mentioned transfusion device flow regulator, the power set one include cylinder one, the gas Cylinder one is installed on the base, but the rotation seat is arranged on the base and its own axis oscillating, institute by bearing Rotation seat is stated provided with connecting rod, described connecting rod one end is connected with the rotation seat, the connecting rod other end and the gas The piston rod of cylinder one is hinged.The piston rod of cylinder one drives connecting rod action, then drives rotation seat can be past by connecting rod Multiple turn, so as to realize feeding and transport roller to the circulation of assembly station, rotation seat is realized using cylinder one and connecting rod Reciprocal turn, simple in construction, cost is low.
In the assembling device of above-mentioned transfusion device flow regulator, the power set two include cylinder two, the gas Cylinder two is installed on the base, and the piston rod of the cylinder is towards the breach of the curved baffle, and the rotation seat is positioned at institute State between cylinder two and curved baffle.Push rod is scalable, push rod can be promoted to act by the piston rod action of cylinder two, structure Simply, cost is low.
In the assembling device of above-mentioned transfusion device flow regulator, spring is arranged with the push rod, the push rod Outer end is stretched out outside the rotation seat, and the outer end of the spring and the outer end of the push rod are fixedly connected with, the spring it is inner fixed On the rotation seat, the inner of the push rod is located in the rotation seat and can extend into the vestibule.Push rod is to vestibule It is mobile that roller release jacking in vestibule is to be assembled in shell, then position is restored under the action of the spring, and with rotation Seat is rotated, and makes to enter next roller in vestibule, push rod can urge it into shell again, so realize repeated work.
In the assembling device of above-mentioned transfusion device flow regulator, the curved face in lower end of the charging seat and with it is described The medial surface of curved baffle is smoothly combined, and the lateral wall of the rotation seat also has arcwall face, the lateral wall energy of the rotation seat Enough medial surfaces along the lower surface of the charging seat and curved baffle are rotated, the lateral wall of the rotation seat and the charging seat Lower surface and the diameter of the roller to be assembled is respectively less than with the spacing of the medial surface of curved baffle.Through hole in charging seat Roller to be assembled is inside arranged with, the roller is entered in the vestibule of rotation seat below by self gravitation, is entered in each vestibule The roller entered in a roller, vestibule is rotated with rotation seat, during this, and the lateral wall of rotation seat can block charging seat Through hole blanking port, while curved baffle can block the outlet of vestibule on rotation seat, prevent dropping for roller, so design this The power set of device are few, compact conformation.
In the assembling device of above-mentioned transfusion device flow regulator, the vestibule can be with the through hole just to position For starting point as the rotation seat rotates 90 °.The roller that charging seat is located in the top of rotation seat, charging seat can be by itself Gravity enters in the vestibule of rotation seat, is assembled after rotating 90 ° with shell, each station space rational deployment, all parts Do not interfered, it is ensured that the stability and high efficiency of assembling.
In the assembling device of above-mentioned transfusion device flow regulator, the inner of the curved baffle has flanging, described Flanging is provided with screw, is plugged with bolt in the screw and the bolt is screwed onto on the charging seat.Curved baffle is spirally connected On charging seat, facilitate installation, maintenance and adjustment.
Compared with prior art, the present invention has advantages below:
1st, present apparatus energy automatic feed dividing, charging and assembling, it is not necessary to manually roller is assembled in shell, Neng Gou great It is big to improve operating efficiency, hand labor intensity is reduced, while the separation roller of the present apparatus, conveying roller, assembling roller are all very Closely, compact conformation, small volume.
2nd, the roller in the feed arrangement in the present apparatus can be entered in rotation seat by self gravitation, and rotation seat can Roller to be assembled is delivered to after rigging position and directly assembled, compact conformation is rationally distributed, reduces power source.
Brief description of the drawings
Fig. 1 is dimensional structure diagram inside the present apparatus;
Positive structure diagram when Fig. 2 is present apparatus sub-material;
Positive structure diagram when Fig. 3 is present apparatus assembling;
Fig. 4 is another dimensional structure diagram of the present apparatus;
Partial enlargement structural representation when Fig. 5 is present apparatus sub-material;
Partial enlargement structural representation when Fig. 6 is present apparatus assembling.
In figure, in figure, 1, base;2nd, rotation seat;3rd, charging seat;4th, power set one;41st, cylinder one;42nd, connecting rod; 5th, power set two;51st, cylinder two;6th, through hole;7th, vestibule;8th, curved baffle;81st, flanging;9th, breach;10th, push rod;11st, bullet Spring;12nd, shell;13rd, roller.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.
As shown in Figures 1 to 6, this assembling device includes base 1, and base 1 is provided with the rotation seat 2 that can be rotated, and rotates Seat 2 is connected with the power set 1 that it can be driven to rotate, and a roller 13 to be assembled can be accommodated by having on rotation seat 2 Vestibule 7, the roller 13 in vestibule 7 can rotate with rotation seat 2, and being fixedly provided with base 1 can be every time to rotation seat 2 The charging seat 3 of one roller 13 to be assembled of supply in vestibule 7, charging seat 3, which is located in the top of rotation seat 2, charging seat 3, has energy The through hole 6 of some rollers to be assembled 13 is enough accommodated, roller 13 to be assembled can be in one line in through hole 6, through hole 6 and vestibule 7 It is oppositely arranged and roller 13 to be assembled can be fallen into vestibule 7 in through hole 6, curved baffle 8, arc gear is installed with charging seat 3 The inner of plate 8 has a flanging 81, and flanging 81 is provided with is plugged with bolt and bolt is screwed onto on charging seat 3, arc in screw, screw Movement locus of the shape baffle plate 8 along vestibule 7 is circumferentially disposed, and the outer end of curved baffle 8, which is provided with, can pass through roller 13 to be assembled Breach 9, being additionally provided with after rotation seat 2 rotate in place on rotation seat 2 can promote roller 13 to be assembled in vestibule 7 to enter to be installed Push rod 10 with shell 12, push rod 10 is telescopic to be arranged in rotation seat 2 and push rod 10 is towards vestibule 7, also fixed on base 1 There are the power set 25 that push rod 10 can be promoted to move.
As shown in figure 1, preferably, power set 1 include cylinder 1, rotation seat 2 is provided with connecting rod 42, connection The one end of bar 42 is connected with rotation seat 2, and the piston rod of the other end of connecting rod 42 and cylinder 1 is hinged;Power set 25 include Cylinder 2 51, cylinder 2 51 is installed on base 1, and the piston rod of cylinder is towards the breach 9 of curved baffle 8, and rotation seat 2 is positioned at gas Between cylinder 2 51 and curved baffle 8.
The present apparatus is used to assemble transfusion device flow regulator, and the roller 13 of flow regulator mainly is assembled into shell 12 In, the sub-material of roller 13 is realized by charging seat 3, roller 13 is entered in rotation seat 2, by the rotational conveyance of rotation seat 2 to treating The station of assembling, roller 13 is ejected and entered in shell 12 by push rod 10, realize roller 13 and flow regulator shell 12 Assembling.Specifically, the roller 13 of the flow regulator produced is placed into charging seat 3, then is put every time by charging seat 3 The roller 13 put in the vestibule 7 that a roller 13 enters rotation seat 2, vestibule 7 reaches specified station as rotation seat 2 is rotated, this When the station there is shell 12 to be assembled to wait, the shell 12 of flow regulator can be using common streamline transport or people Work manual mode is placed on assembly station, and the import of the upper roller 13 of shell 12 and the vestibule 7 rotateing in place are just right, rotation seat 2 Interior push rod 10 is acted, and roller 13 to be assembled in vestibule 7 is released and in jacking shell 12 to be assembled, is completed flow regulator Assembling process.Afterwards, vestibule 7 is turned round with rotation seat 2, and charging seat 3 places a roller to the vestibule 7 of rotation seat 2 again 13, carry out the assembling of next round, so circulation.The device energy automatic feed dividing, charging, it is not necessary to manually assemble roller 13 To shell 12, operating efficiency can be greatly improved, hand labor intensity is reduced, while the separation roller 13 of the present apparatus, conveying Roller 13, assembling roller 13 all closely, compact conformation, small volume.The piston rod of cylinder 1 drives connection in the present apparatus Bar 42 is acted, then by connecting rod 42 drive rotation seat 2 can back and forth turn so that realize feeding and transport roller 13 to assemble The circulation of station, roller 13 to be assembled is placed in the through hole 6 of charging seat 3, and roller 13 to be assembled is in one line in through hole 6 Enable sequentially to fall, a roller 13 to be assembled can be dropped into the vestibule 7 in each rotation seat 2, then with rotation Seat 2 turns to station to be assembled, and curved baffle 8 can prevent the roller 13 in vestibule 7 from taking off in the rotation process of rotation seat 2 Fall, reach after assembly station, the piston rod action of cylinder 2 51 can promote push rod 10 to act, and push rod 10 is promoted in vestibule 7 Roller 13 comes out from the breach 9 of curved baffle 8 and in jacking shell 12 to be assembled;Using cylinder 1 and the conduct of cylinder 2 51 Power source, simple in construction, cost is low.
Certain above-mentioned power set 1 and power set 25 can also be replaced using motor or gasoline engine etc., utilize motor Or gasoline engine can drive rotation seat 2 to rotate, also using structures such as rack-and-pinion it can be made to promote push rod 10 to act.
As shown in Figure 5 and Figure 6, the curved face in the lower end of charging seat 3 and smoothly combined, turned with the medial surface of curved baffle 8 The lateral wall of dynamic seat 2 also has an arcwall face, and the lateral wall of rotation seat 2 can be along the lower surface of charging seat 3 and curved baffle 8 Medial surface is rotated, and the lateral wall of rotation seat 2 is small with the lower surface of charging seat 3 and with the spacing of the medial surface of curved baffle 8 In being arranged with roller 13 to be assembled in the through hole 6 in the diameter of roller 13 to be assembled, charging seat 3, the roller 13 passes through itself Gravity enters below in the vestibule 7 of rotation seat 2, and the roller 13 entered in each vestibule 7 in a roller 13, vestibule 7 is with turning Dynamic seat 2 is rotated together, during this, and the lateral wall of rotation seat 2 can block the blanking port of through hole 6 of charging seat 3, while arc is kept off Plate 8 can block the outlet of vestibule 7 on rotation seat 2, prevent dropping for roller 13, and the power set for so designing the present apparatus are few, Compact conformation.
As shown in fig. 6, being arranged with spring 11 on push rod 10, the outer end of push rod 10 is stretched out outside rotation seat 2, the outer end of spring 11 Be fixedly connected with the outer end of push rod 10, the inner of spring 11 is installed on rotation seat 2, the inner of push rod 10 be located in rotation seat 2 and It can extend into vestibule 7.Push rod 10 moves that the roller 13 in vestibule 7 released into jacking is to be assembled in shell 12 to vestibule 7, then Position is restored in the presence of spring 11, and as rotation seat 2 is rotated, makes to enter next roller 13 in vestibule 7, push rod 10 can Shell 12 is urged it into again, so realizes repeated work.
Preferably, vestibule 7 can be set to starting point as rotation seat 2 rotates 90 °, charging with the positive contraposition of through hole 6 Seat 3 is located at the roller 13 in the top of rotation seat 2, charging seat 3 and can entered by self gravitation in the vestibule 7 of rotation seat 2, turns Assembled after dynamic 90 ° with shell 12, each station space rational deployment, all parts are not interfered, it is ensured that assembling Stability and high efficiency.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used 1, base herein;2nd, rotation seat;3rd, charging seat;4th, power set one;41st, cylinder one; 42nd, connecting rod;5th, power set two;51st, cylinder two;6th, through hole;7th, vestibule;8th, curved baffle;81st, flanging;9th, breach;10、 Push rod;11st, spring;12nd, shell;13rd, the term such as roller, but it is not precluded from the possibility using other terms.Use these arts Language is used for the purpose of more easily describing and explaining the essence of the present invention;Being construed as any additional limitation is all Disagreed with spirit of the present invention.

Claims (7)

1. a kind of assembling device of transfusion device flow regulator, it is characterised in that the assembling device includes base (1), described Base (1), which is provided with to have on the rotation seat (2) that can be rotated, the rotation seat (2), can accommodate a roller to be assembled (13) roller (13) in vestibule (7), the vestibule (7) can be rotated with the rotation seat (2), on the base (1) The charging seat (3) of a roller (13) to be assembled can be supplied into the vestibule (7) of the rotation seat (2) every time by being fixedly provided with, The charging seat (3) is located to be additionally provided with the top of the rotation seat (2), the rotation seat (2) to be rotate in place in rotation seat (2) Push rod (10) of the roller (13) to be assembled into shell to be assembled (12) in the vestibule (7) can be promoted afterwards;The charging seat (3) curved baffle (8) is installed with, movement locus of the curved baffle (8) along the vestibule (7) is circumferentially disposed, described The outer end of curved baffle (8), which is provided with, can make the breach (9) that roller to be assembled (13) passes through;The lower end of the charging seat (3) is in Arcwall face and smoothly combined with the medial surface of the curved baffle (8), the lateral wall of the rotation seat (2) also has arcwall face, The lateral wall of the rotation seat (2) can be rotated along the medial surface of the lower surface of the charging seat (3) and curved baffle (8), The lateral wall of the rotation seat (2) and the lower surface of the charging seat (3) and equal with the spacing of the medial surface of curved baffle (8) Less than the diameter of the roller (13) to be assembled.
2. a kind of assembling device of transfusion device flow regulator according to claim 1, it is characterised in that the rotation seat (2) it is connected with the power set one (4) that it can be driven to rotate, it is some to be installed with that can accommodate in the charging seat (3) Through hole (6) with roller (13), roller (13) to be assembled can be in one line in the through hole (6), the through hole (6) and institute State that vestibule (7) is oppositely arranged and roller (13) to be assembled can be fallen into the vestibule (7) in the through hole (6), the push rod (10) it is telescopic to be arranged in the rotation seat (2) and the push rod (10) is towards the vestibule (7), on the base (1) It is fixedly provided with the power set two (5) that the push rod (10) can be promoted to move.
3. a kind of assembling device of transfusion device flow regulator according to claim 2, it is characterised in that the power dress Putting one (4) includes cylinder one (41), and the cylinder one (41) is installed on the base (1), and the rotation seat (2) passes through bearing On the base (1) and the rotation seat (2) can be around its own axis oscillating, the rotation seat (2) is provided with connecting Extension bar (42), described connecting rod (42) one end is connected with the rotation seat (2), connecting rod (42) other end and the cylinder The piston rod of one (41) is hinged.
4. the assembling device of a kind of transfusion device flow regulator according to Claims 2 or 3, it is characterised in that described dynamic Power apparatus two (5) includes cylinder two (51), and the cylinder two (51) is installed on the base (1), the cylinder two (51) Piston rod is towards the breach (9) of the curved baffle (8), and the rotation seat (2) is positioned at the cylinder two (51) and curved baffle (8) between.
5. the assembling device of a kind of transfusion device flow regulator according to claim 1 or 2 or 3, it is characterised in that described Spring (11) is arranged with push rod (10), the rotation seat (2) is stretched out outside in the outer end of the push rod (10), the spring (11) The outer end of outer end and the push rod (10) is fixedly connected with, and the inner of the spring (11) is installed on the rotation seat (2), the top The inner of bar (10) is located in the rotation seat (2) and can extend into the vestibule (7).
6. a kind of assembling device of transfusion device flow regulator according to Claims 2 or 3, it is characterised in that the hole Chamber (7) can be set to starting point as the rotation seat (2) rotates 90 ° with the positive contraposition of the through hole (6).
7. a kind of assembling device of transfusion device flow regulator according to Claims 2 or 3, it is characterised in that the arc The inner of shape baffle plate (8) has flanging (81), and the flanging (81) is provided with screw, the screw and is plugged with bolt and described Bolt is screwed onto on the charging seat (3).
CN201410504452.3A 2014-09-27 2014-09-27 A kind of assembling device of transfusion device flow regulator Active CN104189978B (en)

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CN201410504452.3A CN104189978B (en) 2014-09-27 2014-09-27 A kind of assembling device of transfusion device flow regulator

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CN104189978B true CN104189978B (en) 2017-08-29

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104667386B (en) * 2015-03-19 2018-11-27 玉环迪元自动化设备有限公司 The governor body of medical Transfusion device and the assembling mechanism of idler wheel
CN114082037B (en) * 2021-11-22 2024-04-26 重庆城银科技股份有限公司 Intraoperative monitoring device based on internet synchronous control technology

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Publication number Priority date Publication date Assignee Title
CN2657843Y (en) * 2003-11-11 2004-11-24 林楚正 Assembling mechanism of regualtor assembling machine
CN103948987A (en) * 2014-03-07 2014-07-30 烟台凯博机械自动化设备有限公司 Regulating wheel automatic installing device of infusion apparatus flow speed regulator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101185783B (en) * 2007-12-03 2011-04-06 王兴章 Assembling device for regulator assembling machine
CN101406716B (en) * 2008-10-30 2012-05-16 王兴章 Assembling device in regulator-assembling machine

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN2657843Y (en) * 2003-11-11 2004-11-24 林楚正 Assembling mechanism of regualtor assembling machine
CN103948987A (en) * 2014-03-07 2014-07-30 烟台凯博机械自动化设备有限公司 Regulating wheel automatic installing device of infusion apparatus flow speed regulator

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