CN105381931A - A and B glue dispenser - Google Patents
A and B glue dispenser Download PDFInfo
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- CN105381931A CN105381931A CN201510918953.0A CN201510918953A CN105381931A CN 105381931 A CN105381931 A CN 105381931A CN 201510918953 A CN201510918953 A CN 201510918953A CN 105381931 A CN105381931 A CN 105381931A
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- point gum
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Abstract
The invention discloses an A and B glue dispenser. The A and B glue dispenser comprises a set of plunger type glue dispensing valve feeding and discharging A and B glue continuously, a set of glue pushing mechanism precisely controlling glue amount and a set of mechanism capable of rapidly replacing glue mixing pipes and a glue dispensing needle head. Different mixing proportions of the A and B glue can be obtained by changing the diameter of a piston rod through the plunger type glue dispensing valve. The plunger type glue dispensing valve can be connected with big glue barrels and continuous glue dispensing is achieved without changing glue pipes. The glue pushing mechanism drives a lead screw to push a piston through a stepping or servo motor, and precise glue ranking control is achieved. When the glue mixing pipes and the glue dispensing needle head need to be replaced, the needle head replacing mechanism can separate the glue mixing pipes from the needle head, and the needle head position after replacement is not needed to be recalibrated.
Description
Technical field
The present invention relates to a kind of AB glue point gum machine, particularly the AB glue point gum machine of a kind of continuity point glue and precise hard_drawn tuhes gel quantity.
Background technology
Along with the fast development of the 3C such as automotive electronics and consumer electronics series products, kind and the quantity of corresponding product grow with each passing day, and gluing and some glue, as link indispensable in each product process flow, propose more and more higher requirement to its quality and efficiency.
AB type glue, also known as two component water, because the adhesion strength of its excellence, good memory property are widely used in filling, the sealing-in of product.
Also the point gum machine that various, function differs is had in the market, but with regard to AB point gum machine, there is following drawback in existing point gum machine: (1) mostly. and glue supplied materials generally adopts the sebific duct of below 300ml to pack, batch production frequently need change sebific duct, continuous print point glue cannot be realized, cause production efficiency low.(2). glue mixed proportion need be determined according to the diameter of supplied materials sebific duct, cannot arbitrarily combine.(3). known valve body is made up of PP material mostly, and when glue temperature raises, valve body expands with heat and contract with cold obviously, causes valve road and valve port to be out of shape more, again owing to mostly adopting pneumatic controller well cannot control out flow adhesive, greatly reduces a glue precision.
Existing point gum machine needs to carry out secondary location to syringe needle when changing dispensing needle head and mixed sebific duct, consuming time longer, reduces production efficiency.
In view of above reason, existing point gum machine cannot meet that product is in enormous quantities, high efficiency, high-quality, assemble production fast, is necessary to develop a kind of new AB glue point gum machine.
Summary of the invention
The object of the invention is to provide a kind of AB glue point gum machine that can realize continuity point glue and precise hard_drawn tuhes gel quantity, and it is convenient to installation and removal, can realize long continuity point glue, provide glue amount accurately, be applicable to extensive operation in industrial production.
The present invention adopts following technical scheme: a kind of AB glue point gum machine, comprising the plunger type glue dispensing valve of a set of AB of being back to back glue, a set of precise hard_drawn tuhes glue amount push away the mechanism that gluing mechanism and a set of quick-replaceable mix sebific duct and dispensing needle head.
Wherein, plunger type glue dispensing valve includes two cavitys separated separately and is respectively that cavity kept in by A glue, cavity kept in by B glue, each independent cavity has a rotating transfer valve, transfer valve has glue-feeder and binder removal mouth, two transfer valves switch simultaneously, when transfer valve is in into gluey state, glue enters A glue from two large glue buckets respectively through transfer valve glue-feeder and keeps in cavity and B glue is kept in cavity; When transfer valve is in binder removal state, A glue is kept in the piston rod that cavity and B glue keeps in cavity and is extruded by glue simultaneously, glue drains into the mixing of mixing tube place through the binder removal mouth of transfer valve, the stroke that two-piston bar is extruded is consistent, and different diameter of piston rod arrives corresponding AB glue mixed proportion than passable.
Wherein, precise hard_drawn tuhes gel quantity push away gluing mechanism by servo motor, shaft coupling, leading screw and position sensor composition, accurately can control two by the pulsed quantity of servo motor and pulse frequency and push away the position and speed that glue piston rod walks at every turn, thus reach the object of accurately control AB glue gel quantity.
Wherein, the precise hard_drawn tuhes glue amount be arranged on line slide rail is pushed away gluing mechanism and plunger type glue dispensing valve upwards jack-up by cylinder by the mechanism that quick-replaceable mixes sebific duct and syringe needle, the mixed sebific duct be fixed on plunger type glue dispensing valve is departed from mutually with the dispensing needle head be fixed on syringe needle positioning workpieces, thus easily, mixed sebific duct or dispensing needle head can be changed fast.
Compared with prior art, AB glue point gum machine of the present invention has clear superiority: (1). and AB glue point gum machine of the present invention can realize the AB glue point glue of large-scale successional product, encapsulating operation avoids the time waste changing AB sebific duct, drastically increases production efficiency.(2). AB glue point gum machine of the present invention adopts mechanical plunger mode to control, and the material adopting not easily temperature distortion to expand is as valve pocket and spool, and precision controls gel quantity far above traditional air pressure.(3). AB glue point gum machine plunger type glue dispensing valve of the present invention is installed simple, easy to maintenance, and the rotating transfer valve wherein comprised in the middle of glue dispensing valve adopts bearing support structure, increases the service life of transfer valve.(4). the plunger type glue dispensing valve of mechanism can by the different AB glue mixed proportion required for the diameter proportion acquisition of change plunger rod; By changing transfer valve glue-feeder diameter, the diameter of binder removal mouth diameter and syringe needle obtains different plastic emitting discharge capacities.(5). the quick-replaceable of AB glue point gum machine of the present invention mixes sebific duct and dispensing needle head mechanism saves replacing construction and positioning time, improves the service efficiency of equipment.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of AB glue point gum machine of the present invention.
Fig. 2 is the principle sketch of the plunger type glue dispensing valve of AB glue point gum machine of the present invention.
Fig. 3 is the operating diagram of the plunger type glue dispensing valve of AB glue point gum machine of the present invention.
Fig. 4 is the exploded perspective view of the plunger type glue dispensing valve of AB glue point gum machine of the present invention.
Fig. 5 is the generalized section that the quick-replaceable of AB glue point gum machine of the present invention mixes sebific duct and syringe needle mechanism.
Fig. 6 is the generalized section that the quick-replaceable of AB glue point gum machine of the present invention mixes sebific duct and another angle of syringe needle mechanism.
Detailed description of the invention
Consult shown in Fig. 1 to Fig. 6, AB glue point gum machine of the present invention is by a set of plunger type glue dispensing valve 100, a set of precise hard_drawn tuhes gel quantity mechanism 200 and a set of quick-replaceable mixes sebific duct and syringe needle mechanism 300 formed.
Plunger type glue dispensing valve 100 includes two cavitys separated separately, be respectively A glue and keep in cavity 611 and cavity 612 kept in by B glue, each cavity has a rotating transfer valve 60, transfer valve 60 is provided with mutually through glue-feeder 601, gum outlet 602 and inflation inlet 603, glue-feeder 601 and gum outlet 602 are positioned on the same diameter line of transfer valve 60, inflation inlet 603 rotates perpendicular to glue-feeder 601 and gum outlet 602, two transfer valves 60 simultaneously, switches.
Plunger type glue dispensing valve 100 has two kinds of duties, is respectively into gluey state and binder removal (some glue) state.Entering in gluey state: with A, two revolving switch valves 60 of B glue 15 correspondence are switched to simultaneously inhales glue state position, cavity 611 kept in by glue-feeder 601 and the A glue of each transfer valve 60, B glue is kept in cavity 612 and is communicated, piston 64 and inflation inlet 603 consistency from top to bottom, A glue is kept in cavity 611 and B glue and is kept in cavity 612 and do not communicate with gum outlet 602, namely do not communicate with binder removal syringe needle 106, motor 10 drives leading screw 11 to drive some glue piston 64 to move up, A is housed, two large glue buckets 12 of B glue 15 keep the blowing pressure, glue 15 is under the suction and the blowing pressure effect of piston 64, cavity 611 kept in by the A glue entering glue dispensing valve 100 and B glue is kept in cavity 612, glue 15 is entered in transfer valve 60 by glue-feeder 601.
In binder removal state: two transfer valves 60 in plunger valve 100 are switched to binder removal state position simultaneously, the gum outlet 602 of transfer valve 60 communicates with binder removal syringe needle 106, transfer valve 60 glue-feeder 601 and A glue are kept in cavity 611 and B glue and are kept in cavity 612 and do not communicate, the blowing pressure in large glue bucket 12 can not be kept in A glue the glue 15 that cavity 611 and B glue keeps in cavity 612 and be had an impact, piston 64 and glue-feeder 601 consistency from top to bottom, motor 10 drives leading screw 11 to drive some glue piston 64 to move downward, glue 15 is under the effect of piston 64 pressure, air pressure is squeezed to gum outlet 602 by the glue-feeder 601 of transfer valve 60, glue 15 is expelled to binder removal syringe needle 106 by transfer valve 60, until glue is discharged, complete a glue.Two piston 64 diameters are identical, and the plastic emitting ratio of binder removal syringe needle 106 is 1:1.
Rotating transfer valve spool 121 two ends of plunger type glue dispensing valve 100 are separately installed with deep groove ball bearing 110 and needle roller thrust bearing 119, poppet shaft is provided with O RunddichtringO 111 and sealed graphite 122, spool 121 is connected with spool handle 108, under the drive switching cylinder 227, carry out state switching.
Precise hard_drawn tuhes gel quantity mechanism 200 is by servo motor 201 drive leading screw 204 to drive A glue to keep in precise hard_drawn tuhes that cavity 611 and the B glue plunger rod 13 of keeping in cavity 612 move the glue amount in transfer valve 60 that realizes, mechanism is provided with and pushes away glue limit sensor 206 far away and push away glue near limit sensor 223, glue 15 when pushing away glue limit sensor 206 signal interruption far away in explanation transfer valve 60 is close to be finished, now need to switch to into glue work clothes state, illustrate that when pushing away glue near limit sensor 206 signal interruption the glue 15 in transfer valve 60 is full of, now can carry out binder removal or the work of some glue.
Switching cylinder 227 left and right sides that drive point glue Vavle switching valve core 121 rotates is separately installed with left inductor, right inductor, can monitor transfer valve in real time and be in which kind of duty.
Quick-replaceable mixes sebific duct and syringe needle mechanism makes whole plunger type glue dispensing valve 100 and precise hard_drawn tuhes gel quantity mechanism 200 vertically depart from the some plastic pin pipe 106 be fixed on syringe needle location-plate 309 under the guiding of needle exchange head directive slide track 209 and needle exchange head guide runner under the effect of needle exchange head cylinder 303, mixed sebific duct 105 departs from some plastic pin pipe 106, thus can carry out quick-replaceable to mixed sebific duct 105 and some plastic pin pipe 106 and without the need to again correcting needle position after changing.
The operation principle of AB glue point gum machine of the present invention is as follows: plunger type glue dispensing valve 100 is periodically switched by rotating transfer valve 62 spool of its valve inner and realizes continuous print and enter the work of glue binder removal, cavity 611 kept in by the A glue of plunger type glue dispensing valve 100 inside and the temporarily providing room of cavity 612 as glue kept in by B glue, when transfer valve 61 is for entering gluey state, A, glue 15 inside the large glue bucket 12 of B glue is filled and is kept in cavity 611 to glue dispensing valve 100A glue and B glue is kept in cavity 612 under the blowing pressure and A glue keep in cavity 611 and the synergy of negative pressure of vacuum in cavity 612 kept in by B glue, when transfer valve 60 is for plastic emitting state, the A glue of glue dispensing valve 100 is kept in temporary glue 15 Precise Extrusion under the plunger rod 102 that screw mandrel 11 drives acts on that cavity 611 and B glue keeps in cavity 612 and is drained into plastic pin pipe 106 place, this some glue mode avoids traditional some glue mode due to air pressure instability and causes the situation of plastic emitting instability, achieve the object of continuity point glue operation.
Above-described embodiment is only a kind of embodiment of structure of the present invention; but the embodiment of structure of the present invention is not restricted to the described embodiments; the change that other any does under not deviating from the Spirit Essence of structure of the present invention and principle, replacement, combination, simplification; all should be the substitute mode of equivalence, within the protection domain being included in structure of the present invention.
Claims (7)
1. an AB glue point gum machine, it is characterized in that: described AB glue point gum machine comprises the plunger type glue dispensing valve of a set of AB glue of being back to back, a set of precise hard_drawn tuhes glue amount push away the mechanism that gluing mechanism and a set of quick-replaceable mix sebific duct and dispensing needle head, be provided with plunger type glue dispensing valve in described plunger type point glue and include two cavitys separated separately, be respectively A glue and keep in cavity and cavity kept in by B glue, each cavity has a rotating transfer valve, transfer valve is provided with mutually through glue-feeder, gum outlet and inflation inlet, glue-feeder and gum outlet are positioned on the same diameter line of transfer valve, described inflation inlet is perpendicular to glue-feeder and gum outlet, two transfer valves rotate simultaneously, gum outlet is impelled to be communicated with binder removal syringe needle.
2. AB glue point gum machine according to claim 1, is characterized in that: by changing the ratio of A cavity plunger rod and B cavity plunger rod diameter with the AB glue mixing ratio of satisfied different demand.
3. AB glue point gum machine according to claim 2, is characterized in that: the two ends of described transfer valve install deep groove ball bearing, needle roller thrust bearing and carbon seal ring respectively.
4. AB glue point gum machine according to claim 1, it is characterized in that: servomotor and screw mandrel combine and promote A cavity plunger rod and B cavity plunger rod simultaneously, plunger rod is kept in cavity and the B glue glue of keeping in cavity and is extruded into mixed sebific duct place by being stored in A glue simultaneously and mixes.
5. AB glue point gum machine according to claim 1, it is characterized in that: described precise hard_drawn tuhes gel quantity mechanism is provided with and pushes away glue limit sensor far away and push away glue near limit sensor, glue when pushing away glue distal pole limit sensor signal and interrupting in explanation transfer valve is close to being finished, now need to switch to into glue work clothes state, illustrate that the glue in transfer valve is full of when pushing away glue near limit sensor signal and interrupting, now can carry out binder removal or the work of some glue.
6. AB glue point gum machine according to claim 1, is characterized in that: dispensing needle head is accurately located by syringe needle fixation workpiece, and whole some rubber moulding group jack-up makes mixed sebific duct and dispensing needle head depart from thus realize the replacing of mixed sebific duct and dispensing needle head by cylinder.
7. AB glue point gum machine according to claim 1, is characterized in that: drive the switching cylinder left and right sides of transfer valve Spool rotating to be separately installed with can to monitor transfer valve in real time and be in the left inductor of which kind of duty, right inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918953.0A CN105381931A (en) | 2015-12-11 | 2015-12-11 | A and B glue dispenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918953.0A CN105381931A (en) | 2015-12-11 | 2015-12-11 | A and B glue dispenser |
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| CN105381931A true CN105381931A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510918953.0A Pending CN105381931A (en) | 2015-12-11 | 2015-12-11 | A and B glue dispenser |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817398A (en) * | 2016-06-02 | 2016-08-03 | 淮南市宜留机械科技有限公司 | Blockage prevention module of dispensing operation valve of double-fluid dispensing machine |
| CN106622883A (en) * | 2016-11-15 | 2017-05-10 | 东莞东聚电子电讯制品有限公司 | Automatic AB glue mixing and supporting mechanism |
| CN107029943A (en) * | 2017-04-24 | 2017-08-11 | 苏州特瑞特机器人有限公司 | Biliquid screw rod glue dispensing valve |
| CN107051819A (en) * | 2017-05-09 | 2017-08-18 | 深圳市万禾自动化设备有限公司 | Multi-head synchronous quantitative point glue device |
| CN107138346A (en) * | 2017-05-12 | 2017-09-08 | 苏州睿立汇自动化科技有限公司 | Syringe needle Quick locating structure and method for rapidly positioning |
| CN107199153A (en) * | 2017-05-12 | 2017-09-26 | 苏州睿立汇自动化科技有限公司 | Three way type packing element structure, syringe needle Quick locating structure and method for rapidly positioning |
| CN107309136A (en) * | 2017-07-19 | 2017-11-03 | 江西迪迪工业智能设备有限公司 | A kind of spot gluing equipment and its dispensing method |
| CN107755194A (en) * | 2017-11-30 | 2018-03-06 | 苏州特瑞特机器人有限公司 | Glue supply device of double-liquid glue dispenser |
| CN108393240A (en) * | 2018-04-25 | 2018-08-14 | 大连华工创新科技股份有限公司 | Glue injecting head suitable for bi-component high-viscosity material |
| CN108554726A (en) * | 2018-06-25 | 2018-09-21 | 江苏瑞合硕电子科技有限公司 | The antidrip vacuum glue of two-component fills machine |
| CN109290129A (en) * | 2018-10-10 | 2019-02-01 | 湖州南浔研艺斋工艺品有限公司 | A kind of glue pouring machine |
| CN109622301A (en) * | 2018-12-25 | 2019-04-16 | 天津容大机电科技有限公司 | For precision after two component mixing for the proportional valve of glue |
| CN110252599A (en) * | 2019-07-11 | 2019-09-20 | 东莞市奥海科技股份有限公司 | Encapsulating charger and its manufacturing method |
| CN110860432A (en) * | 2019-11-27 | 2020-03-06 | 珠海市润星泰电器有限公司 | Automatic mixing point system of proportioning |
| CN111617932A (en) * | 2020-05-20 | 2020-09-04 | 厦门鑫奥格自动化设备有限公司 | Ejecting type dispensing module of dispenser |
| CN113236462A (en) * | 2021-06-04 | 2021-08-10 | 无锡威孚马山油泵油嘴有限公司 | Measuring method for micro-hole of oil nozzle needle valve body |
| CN114425501A (en) * | 2022-01-13 | 2022-05-03 | 深圳市高昶自动化设备有限公司 | AB glue quantitative mixing extrusion method and extrusion device |
| CN114433427A (en) * | 2022-03-10 | 2022-05-06 | 苏州凯恩姆自动化科技有限公司 | Dispensing metering dispensing valve |
| CN114713460A (en) * | 2022-03-24 | 2022-07-08 | 厦门丛蔚科技有限公司 | Continuous glue discharging type glue supplying device |
| CN114958281A (en) * | 2021-02-26 | 2022-08-30 | 天津市环智新能源技术有限公司 | Preparation method of glue for bonding silicon crystal, bonding process and line cutting process |
| CN115055338A (en) * | 2022-07-06 | 2022-09-16 | 深圳市世宗自动化设备有限公司 | Needle changing mechanism of dispensing equipment |
| CN115069497A (en) * | 2022-07-06 | 2022-09-20 | 深圳市世宗自动化设备有限公司 | AB glue adhesive deposite device |
| CN116510987A (en) * | 2023-07-03 | 2023-08-01 | 江苏高凯精密流体技术股份有限公司 | Pulse plunger dispensing valve |
| CN116550556A (en) * | 2023-07-03 | 2023-08-08 | 江苏高凯精密流体技术股份有限公司 | Linkage type plunger dispensing valve |
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Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817398A (en) * | 2016-06-02 | 2016-08-03 | 淮南市宜留机械科技有限公司 | Blockage prevention module of dispensing operation valve of double-fluid dispensing machine |
| CN106622883A (en) * | 2016-11-15 | 2017-05-10 | 东莞东聚电子电讯制品有限公司 | Automatic AB glue mixing and supporting mechanism |
| CN107029943A (en) * | 2017-04-24 | 2017-08-11 | 苏州特瑞特机器人有限公司 | Biliquid screw rod glue dispensing valve |
| CN107051819A (en) * | 2017-05-09 | 2017-08-18 | 深圳市万禾自动化设备有限公司 | Multi-head synchronous quantitative point glue device |
| CN107199153B (en) * | 2017-05-12 | 2019-01-25 | 苏州睿立汇自动化科技有限公司 | Three way type packing element structure, syringe needle Quick locating structure and method for rapidly positioning |
| CN107138346A (en) * | 2017-05-12 | 2017-09-08 | 苏州睿立汇自动化科技有限公司 | Syringe needle Quick locating structure and method for rapidly positioning |
| CN107199153A (en) * | 2017-05-12 | 2017-09-26 | 苏州睿立汇自动化科技有限公司 | Three way type packing element structure, syringe needle Quick locating structure and method for rapidly positioning |
| CN107309136A (en) * | 2017-07-19 | 2017-11-03 | 江西迪迪工业智能设备有限公司 | A kind of spot gluing equipment and its dispensing method |
| CN107755194A (en) * | 2017-11-30 | 2018-03-06 | 苏州特瑞特机器人有限公司 | Glue supply device of double-liquid glue dispenser |
| CN107755194B (en) * | 2017-11-30 | 2023-02-10 | 苏州卓兆点胶股份有限公司 | Glue supply device of double-liquid glue dispenser |
| CN108393240A (en) * | 2018-04-25 | 2018-08-14 | 大连华工创新科技股份有限公司 | Glue injecting head suitable for bi-component high-viscosity material |
| CN108554726A (en) * | 2018-06-25 | 2018-09-21 | 江苏瑞合硕电子科技有限公司 | The antidrip vacuum glue of two-component fills machine |
| CN109290129A (en) * | 2018-10-10 | 2019-02-01 | 湖州南浔研艺斋工艺品有限公司 | A kind of glue pouring machine |
| CN109622301A (en) * | 2018-12-25 | 2019-04-16 | 天津容大机电科技有限公司 | For precision after two component mixing for the proportional valve of glue |
| CN110252599A (en) * | 2019-07-11 | 2019-09-20 | 东莞市奥海科技股份有限公司 | Encapsulating charger and its manufacturing method |
| CN110860432A (en) * | 2019-11-27 | 2020-03-06 | 珠海市润星泰电器有限公司 | Automatic mixing point system of proportioning |
| CN111617932A (en) * | 2020-05-20 | 2020-09-04 | 厦门鑫奥格自动化设备有限公司 | Ejecting type dispensing module of dispenser |
| CN114958281A (en) * | 2021-02-26 | 2022-08-30 | 天津市环智新能源技术有限公司 | Preparation method of glue for bonding silicon crystal, bonding process and line cutting process |
| CN113236462A (en) * | 2021-06-04 | 2021-08-10 | 无锡威孚马山油泵油嘴有限公司 | Measuring method for micro-hole of oil nozzle needle valve body |
| CN114425501A (en) * | 2022-01-13 | 2022-05-03 | 深圳市高昶自动化设备有限公司 | AB glue quantitative mixing extrusion method and extrusion device |
| CN114433427A (en) * | 2022-03-10 | 2022-05-06 | 苏州凯恩姆自动化科技有限公司 | Dispensing metering dispensing valve |
| CN114713460B (en) * | 2022-03-24 | 2023-01-03 | 厦门丛蔚科技有限公司 | Continuous glue discharging type glue supplying device |
| CN114713460A (en) * | 2022-03-24 | 2022-07-08 | 厦门丛蔚科技有限公司 | Continuous glue discharging type glue supplying device |
| CN115069497A (en) * | 2022-07-06 | 2022-09-20 | 深圳市世宗自动化设备有限公司 | AB glue adhesive deposite device |
| CN115055338A (en) * | 2022-07-06 | 2022-09-16 | 深圳市世宗自动化设备有限公司 | Needle changing mechanism of dispensing equipment |
| CN115069497B (en) * | 2022-07-06 | 2023-10-03 | 深圳市世宗自动化设备有限公司 | AB glue dispensing device |
| CN116510987A (en) * | 2023-07-03 | 2023-08-01 | 江苏高凯精密流体技术股份有限公司 | Pulse plunger dispensing valve |
| CN116550556A (en) * | 2023-07-03 | 2023-08-08 | 江苏高凯精密流体技术股份有限公司 | Linkage type plunger dispensing valve |
| CN116510987B (en) * | 2023-07-03 | 2023-09-19 | 江苏高凯精密流体技术股份有限公司 | Pulse plunger dispensing valve |
| CN116550556B (en) * | 2023-07-03 | 2023-12-12 | 江苏高凯精密流体技术股份有限公司 | Linkage type plunger dispensing valve |
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