CN113526138A - BGA microsphere automatic blanking device and blanking method thereof - Google Patents

BGA microsphere automatic blanking device and blanking method thereof Download PDF

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Publication number
CN113526138A
CN113526138A CN202110926391.XA CN202110926391A CN113526138A CN 113526138 A CN113526138 A CN 113526138A CN 202110926391 A CN202110926391 A CN 202110926391A CN 113526138 A CN113526138 A CN 113526138A
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CN
China
Prior art keywords
bga
microspheres
flow control
pipe
bin
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Pending
Application number
CN202110926391.XA
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Chinese (zh)
Inventor
李超君
闫焉服
李涛
闫博恒
高婷婷
吕贵红
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Henan University of Science and Technology
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Henan University of Science and Technology
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Publication date
Application filed by Henan University of Science and Technology filed Critical Henan University of Science and Technology
Priority to CN202110926391.XA priority Critical patent/CN113526138A/en
Publication of CN113526138A publication Critical patent/CN113526138A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/06—Gas pressure systems operating without fluidisation of the materials
    • B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/36—Arrangements of containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/50—Pneumatic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/52—Adaptations of pipes or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material

Abstract

The invention discloses an automatic BGA microsphere blanking device and a blanking method thereof, wherein the automatic BGA microsphere blanking device comprises a storage bin, a flow control valve, a three-way pipe, a discharge pipe and a control system, wherein the flow control valve is arranged below the storage bin, the upper port of the flow control valve is communicated with the bottom end of the storage bin, and the lower port of the flow control valve is communicated with the upper port of the three-way pipe; the lower port of the three-way pipe is communicated with the discharge pipe, and the side port of the three-way pipe is communicated with an air pipe I of the control system; this patent can solve the BGA microballon unloading runner that current unloader arouses and block up, avoids technical problem such as microballon friction of vibration unloading mode, and this patent can guarantee that BGA microballon unloading realizes flow control and unmanned on duty automatic unloading, and the microballon does not take place the oxidation.

Description

BGA microsphere automatic blanking device and blanking method thereof
Technical Field
The invention relates to the technical field of microsphere screening, in particular to an automatic BGA microsphere blanking device and a blanking method thereof.
Background
In the process of producing and manufacturing the microspheres, due to the influence of various objective factors, the existing microsphere screening technology in the industry is not mature enough, so that the deviation of the particle size and the roundness of the microspheres with a certain probability exists, and the quality of the microspheres is influenced.
The BGA microspheres serving as the chip pins are key materials for BGA packaging, and due to the severe application scene, the BGA microspheres are determined to have uniform sphere diameter and high roundness, so that not only is the sphere diameter screening performed by a precise mesh screen, but also the roundness screening performed by a roundness screening machine is required. No matter ball footpath screening or real circularity screening all need BGA microballon unloader for the material carries out continuous stable pay-off. Due to the limitation of the existing microsphere blanking device, microsphere screening and blanking are difficult. The diameter of the microspheres is mostly between 0.1mm and 0.76mm, a single-valve type flow control blanking mode is generally adopted, and a flow channel is easily blocked due to the accumulation characteristic among granular materials, so that the unattended roundness screening equipment is abnormally shut down. Therefore, the problem of material blocking of a flow channel is solved by adding an oscillator on the discharging hopper, but the oscillator vibrates to cause the friction of the microspheres, so that the microspheres are blackened and even oxidized, and the quality of the microspheres is influenced.
Disclosure of Invention
In order to solve the bottleneck of the prior art, the invention provides the BGA microsphere automatic blanking device and the blanking method thereof, which can solve the technical problems of BGA microsphere blanking flow channel blockage caused by the existing blanking device, microsphere friction caused by a vibration blanking mode and the like.
The technical scheme adopted by the invention is as follows: a BGA microsphere automatic blanking device comprises a storage bin, a flow control valve, a three-way pipe, a discharge pipe and a control system, wherein the flow control valve is arranged below the storage bin, an upper port of the flow control valve is communicated with the bottom end of the storage bin, and a lower port of the flow control valve is communicated with an upper port of the three-way pipe; the lower port of the three-way pipe is communicated with the discharge pipe, and the side port of the three-way pipe is communicated with an air pipe I of the control system.
Further, the storage silo includes feed bin I, feed bin II and the feed bin neck that from the top down set gradually, and the top of feed bin II is linked together with the bottom of feed bin I, and the top of feed bin neck is linked together with the bottom of feed bin II, and the bottom and the flow control valve of feed bin neck are linked together.
Further, the shape of the bin I is any one of a cylinder, a regular polygonal column and a circular truncated cone; the bin II is in any one of a circular truncated cone shape and a polygonal truncated cone shape; the neck of the storage bin is in a round tube shape.
Further, the diameter of the cylinder or the diameter of the inner tangent circle of the regular polygonal cylinder is phi 150-phi 250mm, and the height is 100-200 mm; the height of the truncated cone shape or the polygonal truncated cone shape is 50-100 mm, and the cone angle is 90-120 degrees; the inner diameter of the bin neck is 5-8 mm phi, the outer diameter is 8-12 mm phi, and the height is 20-40 mm.
Further, control system includes trachea I, solenoid valve, trachea II and air supply and the time control system who links to each other with the solenoid valve, and trachea I, solenoid valve, trachea II and air supply link to each other in proper order, and the one end of trachea I is linked together with the one end of three-way pipe, and the other end of trachea I links to each other with the solenoid valve.
Furthermore, the time control system comprises a time relay and a power supply, one end of the time relay is connected with the electromagnetic valve through a connecting wire I, and the other end of the time relay is connected with the power supply through a connecting wire II.
Furthermore, the discharge pipe is an anti-static hose.
An automatic blanking method for BGA microspheres comprises the following steps:
step one, opening an air source and a power supply, and switching on a time relay;
opening a flow control valve, adjusting the flow rate to enable the microspheres to be fed at a proper flow rate, and discharging from a discharge pipe;
step three, when the time relay reaches the set opening and closing time, the time relay is started, the electromagnetic valve is regulated and controlled to open the valve to start ventilation, the electromagnetic valve is closed after the ventilation is carried out for a period of time, and when the time relay reaches the opening and closing time again, the actions are repeated;
and step four, closing the flow control valve, the gas source, the time relay and the power supply after the blanking is finished.
Further, the flow rate of the microspheres in the second step is 0.6-5 kg/h.
Furthermore, the opening and closing time interval in the third step is 50-60 s, and the ventilation time of the electromagnetic valve is 0.1-0.15 s.
Has the advantages that:
the invention has the following beneficial effects:
1. a flow control valve is arranged below the storage bin, and the flow can be adjusted according to the specifications of BGA microspheres with different ball diameters;
2. a three-way pipe is arranged below the flow control valve, and can realize interval automatic air blowing, prevent the blocking phenomenon of material blocking in the microsphere blanking process, realize unattended operation, and simultaneously solve the problem that the tin ball is oxidized and blackened due to the adoption of vibration or rotation blanking;
3. adopt and prevent that the static hose is as the discharging pipe, can avoid the smooth phenomenon of microballon unloading in-process that leads to because of electrostatic absorption, and easily adjustment.
Drawings
FIG. 1 is a schematic structural view of the invention;
the device comprises a graphic mark 1, a bin I, a bin II, a bin neck 4, a flow control valve 5, a three-way pipe 6, a discharge pipe 7, an air pipe I, an air pipe 8, an electromagnetic valve 9, an air pipe II, an air source 10, an air source 11, a lead I, a lead 12, a time relay 13, a lead II, a lead 14 and a power supply.
Detailed Description
The present invention will be described in further detail with reference to the drawings and specific examples, but the present invention is not limited thereto.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "lateral", "longitudinal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The utility model provides an automatic unloader of BGA microballon, including the storage silo, flow control valve 4, three-way pipe 5, discharging pipe 6 and control system, flow control valve 4 sets up in the below of storage silo and is linked together with the bottom of flow control valve 4's top and storage silo, three-way pipe 5 sets up and is linked together with flow control valve 4's bottom in flow control valve 4's below and three-way pipe 5's top, the bottom and the discharging pipe 6 of three-way pipe 5 are linked together, discharging pipe 6 is for preventing the static hose, the other end of three-way pipe 5 is linked together with the control system who is used for adjusting flow control valve 4.
The three-way pipe 5 is a two-way straight-through pipe and a lateral single-way pipe, the two-way straight-through pipe is connected with the tail end of the flow control valve in an upward mode, is connected with the flexible pipe of the discharge pipe 6 in a downward mode, and is connected with the air pipe I7 in a lateral mode.
The discharge pipe 6 is a transparent anti-static hose, the inner diameter of the discharge pipe is between phi 5mm and phi 10mm, the discharge pipe is connected with the lower part of the three-way pipe, and the length of the discharge pipe is determined according to the distance between a discharge port of the flow control valve and a working table of a microsphere sphere diameter screening machine or a roundness screening machine.
The storage silo includes feed bin I1, feed bin II 2 and feed bin neck 3 that from the top down set gradually, and the top of feed bin II 2 is linked together with feed bin I1's bottom, and the top of feed bin neck 3 is linked together with the bottom of feed bin II 2, and the bottom of feed bin neck 3 is linked together with flow control valve 4. The storage bin I1 is in any one shape of a cylinder, a regular polygonal column and a circular truncated cone; the bin II 2 is in any one of a circular truncated cone shape and a polygonal truncated cone shape; the silo neck 3 is in the shape of a round tube. Funnel neck upper portion links to each other with II 2 bottoms in feed bin, and the external screw thread has in the processing of lower part external diameter to link to each other with flow control valve 4, flow control valve 4 can adopt manually, also can adopt electronically.
The diameter of the cylinder or the diameter of the inner tangent circle of the regular polygonal cylinder is between phi 100mm and phi 400mm, and the height of the inner tangent circle is between 100mm and 300 mm; the height of the circular truncated cone or the polygonal truncated cone is 50-200 mm; the funnel neck is a round tube-shaped channel, the inner diameter is phi 3-phi 10mm, the outer diameter is phi 5-phi 15mm, the height is 10-50 mm,
optimally, the diameter of a cylinder or a regular polygonal cylinder inscribed circle is phi 150-phi 250mm, and the height is 100-200 mm; the height of the circular truncated cone or the polygonal truncated cone is 50-100 mm, and the cone angle is 90-120 degrees; the inner diameter of the bin neck 3 is phi 5-phi 8mm, the outer diameter is phi 8-phi 12mm, and the height is 20-40 mm.
The control system comprises an air pipe I7, an electromagnetic valve 8, an air pipe II 9, an air source 10 and a time control system connected with the electromagnetic valve 8, wherein the air pipe I7, the electromagnetic valve 8, the air pipe II 9 and the air source 10 are sequentially connected, one end of the air pipe I7 is communicated with one end of the three-way pipe 5, and the other end of the air pipe I7 is connected with the electromagnetic valve 8; the time control system comprises a time relay 12 and a power supply 14, one end of the time relay 12 is connected with the electromagnetic valve 8 through a lead I11, and the other end of the time relay 12 is connected with the power supply 14 through a lead II 13.
The control system consists of an electromagnetic valve, a time relay, a power supply and an air source, wherein one end of the electromagnetic valve is connected with an air pipe I7 on the lateral side of the three-way pipe, and the other end of the electromagnetic valve is connected with the air source; the electromagnetic valve is connected with a time relay through a circuit, and the time relay is connected with a power supply.
An automatic blanking method for BGA microspheres comprises the following steps:
step one, opening an air source 10 and a power supply 14, and switching on a time relay 12;
step two, opening the flow control valve 4, adjusting the flow rate to feed the microspheres at a proper flow rate, and discharging the microspheres from the discharge pipe 6; generally, the flow rate of the microspheres is 0.3kg-8kg/h, preferably, the flow rate of the microspheres is 0.6kg-5 kg/h;
thirdly, when the time relay 12 reaches the set opening and closing time, the time relay 12 is started, the electromagnetic valve 8 is controlled to be opened, ventilation is started, the electromagnetic valve 8 is closed after the ventilation is conducted for a period of time, and when the time relay 12 reaches the opening and closing time again, the actions are repeated; generally, the opening and closing time interval is 30-90 s, the action time is 0.05-0.5 s, preferably, the opening and closing time interval is 50-60 s, and the action time is 0.1-0.15 s;
and step four, after the blanking is finished, closing the flow control valve 4, the air source 10, the time relay 12 and the power supply 14.
Example 1
As shown in figure 1, the BGA microsphere automatic blanking device comprises a storage bin, a three-way pipe, a discharge pipe and a control system, wherein the storage bin comprises a bin I1, a bin II 2 and a bin neck 3 which are sequentially arranged from top to bottom. The bin I1 is cylindrical with the diameter of 200mm and the height of 100 mm; the cone angle and the height of the bin II 2 are 120 degrees and 50mm, and the bin II 2 is connected with the bin I1 in a welding mode; the inner diameter of the bin neck 3 is 5mm, the outer diameter of the bin neck is 8mm, the height of the bin neck is 20mm, the bin neck 3 is connected with the bin II 2 in a welding mode, and external threads are machined on the lower portion of the bin neck 3; the flow control valve 4 is a ball valve and can adjust the flow of the microspheres, and the flow control valve 4 is connected with the stock bin neck 3 through threads. The three-way pipe 5 is connected with the tail end of the flow control valve 4. The discharge pipe 6 is an anti-static hose 6, the discharge pipe 6 is connected with the tail end of the three-way pipe 5, and the lower end of the discharge pipe is a discharge hole. The control system consists of an air pipe I7, an electromagnetic valve 8, an air pipe II 9, an air source 10 and a time control system (a time relay 12 and a power supply 14) connected with the electromagnetic valve 8, wherein one end of the air pipe I7 is connected with the lateral single-port of the three-way pipe 5, and the other end of the air pipe I7 is connected with one end of the electromagnetic valve 8; the other end of the electromagnetic valve 8 is connected with one end of an air pipe II 9; the other end of the air pipe II 9 is connected with the air source 10; the time relay 12 is connected with the electromagnetic valve 8 through the electromagnetic valve lead I11, and the power supply 14 is connected with the time relay 12 through the relay lead II 13.
When the device works, the air source 10 and the power source 14 are opened, the time relay 12 is set, the action interval time is set to be 60s, the action time is 0.1s, the flow control valve 4 is opened, the device is adjusted to a proper flow position, the microspheres start to be discharged, the microspheres are discharged from the discharge hole at the bottom end of the discharge pipe 6, after the time is counted for 60s, the relay 12 outputs signals to the electromagnetic valve 8, the electromagnetic valve 8 receives signals and opens the valve to start ventilation, the ventilation time is 0.1s, if the material blockage phenomenon occurs before, the material blockage phenomenon is dredged after ventilation, the materials continue to be fed, and after the time is counted for 60s again, the circulation action is continuously repeated.
Example 2
On the basis of embodiment 1, the flow control valve 4 may be a butterfly valve.
Example 3
An automatic unloader of BGA microballon, on embodiment 1's basis, feed bin I1 can be the round platform shape completely.
Example 4
The utility model provides an automatic unloader of BGA microballon, on embodiment 1's basis, feed bin I1 can be integrative with feed bin II 2 and feed bin neck 3.
Example 5
An automatic blanking device of BGA microballon, on the basis of embodiment 1, time relay 12 can be the optic fibre induction system, controls the switching of solenoid valve 8 through the state of the discharge gate of the discharge pipe 6 of the response antistatic hose.
Example 6
In embodiment 1, the time interval between the operations of the time relay 12 may be 30s, and the operation time may be 0.2 s.
The device of the present invention may have other forms than the above-described embodiments, and it should be understood that any simple modification, equivalent change and modification made to the above-described embodiments according to the technical spirit of the present invention fall within the scope of the present invention.

Claims (10)

1. The utility model provides an automatic unloader of BGA microballon which characterized in that: the device comprises a storage bin, a flow control valve, a three-way pipe, a discharge pipe and a control system, wherein the flow control valve is arranged below the storage bin, the upper port of the flow control valve is communicated with the bottom end of the storage bin, and the lower port of the flow control valve is communicated with the upper port of the three-way pipe; the lower port of the three-way pipe is communicated with the discharge pipe, and the side port of the three-way pipe is communicated with an air pipe I of the control system.
2. The automatic blanking device for the BGA microspheres of claim 1, wherein: the storage silo includes feed bin I, feed bin II and the feed bin neck that from the top down set gradually, and the top of feed bin II is linked together with the bottom of feed bin I, and the top of feed bin neck is linked together with the bottom of feed bin II, and the bottom and the flow control valve of feed bin neck are linked together.
3. The automatic blanking device for the BGA microspheres of claim 2, wherein: the shape of the bin I is any one of a cylinder, a regular polygonal column and a circular truncated cone; the bin II is in any one of a circular truncated cone shape and a polygonal truncated cone shape; the neck of the storage bin is in a round tube shape.
4. The automatic blanking device for the BGA microspheres of claim 3, wherein: the diameter of the cylinder or the diameter of the inner tangent circle of the regular polygonal cylinder is phi 150-phi 250mm, and the height is 100-200 mm; the height of the circular truncated cone or the polygonal truncated cone is 50-100 mm, and the cone angle is 90-120 degrees; the inner diameter of the bin neck is 5-8 mm phi, the outer diameter is 8-12 mm phi, and the height is 20-40 mm.
5. The automatic blanking device for the BGA microspheres of claim 1, wherein: the control system comprises an air pipe I, an electromagnetic valve, an air pipe II, an air source and a time control system connected with the electromagnetic valve, wherein the air pipe I, the electromagnetic valve, the air pipe II and the air source are sequentially connected, one end of the air pipe I is communicated with one end of the three-way pipe, and the other end of the air pipe I is connected with the electromagnetic valve.
6. The automatic blanking device of BGA microballon of claim 5, characterized in that: the time control system comprises a time relay and a power supply, wherein one end of the time relay is connected with the electromagnetic valve through a wire I, and the other end of the time relay is connected with the power supply through a wire II.
7. The automatic blanking device for the BGA microspheres of claim 1, wherein: the discharge pipe is an anti-static hose.
8. The automatic blanking method of the BGA microspheres of any one of claims 1 to 7, wherein: the method comprises the following steps:
step one, opening an air source and a power supply, and switching on a time relay;
opening a flow control valve, adjusting the flow rate to enable the microspheres to be fed at a proper flow rate, and discharging from a discharge pipe;
step three, when the time relay reaches the set opening and closing time, the time relay is started, the electromagnetic valve is regulated and controlled to open the valve to start ventilation, the electromagnetic valve is closed after the ventilation is carried out for a period of time, and when the time relay reaches the opening and closing time again, the actions are repeated;
and step four, closing the flow control valve, the gas source, the time relay and the power supply after the blanking is finished.
9. The automatic blanking method of the BGA microspheres of claim 8, wherein: the flow rate of the microspheres in the second step is 0.6-5 kg/h.
10. The automatic blanking method of the BGA microspheres of claim 8, wherein: the opening and closing time interval in the third step is 50-60 s, and the ventilation time of the electromagnetic valve is 0.1-0.15 s.
CN202110926391.XA 2021-08-12 2021-08-12 BGA microsphere automatic blanking device and blanking method thereof Pending CN113526138A (en)

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Application Number Priority Date Filing Date Title
CN202110926391.XA CN113526138A (en) 2021-08-12 2021-08-12 BGA microsphere automatic blanking device and blanking method thereof

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Application Number Priority Date Filing Date Title
CN202110926391.XA CN113526138A (en) 2021-08-12 2021-08-12 BGA microsphere automatic blanking device and blanking method thereof

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Publication Number Publication Date
CN113526138A true CN113526138A (en) 2021-10-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8205767A (en) * 1981-10-19 1983-09-06 Wurth Paul Sa CONTENT AND FILLING CONTROL DEVICE OF A PULVERULENT MATERIALS DISTRIBUTION RESERVOIR
CN205771125U (en) * 2016-07-05 2016-12-07 贵州盘江煤电建设工程有限公司 The drawing mechanism of a kind of feed bin inflated type and control system
CN206678296U (en) * 2017-04-25 2017-11-28 烟台日新航空科技有限公司 A kind of injecting machine material tube Aeroassisted blanking device
CN207759417U (en) * 2018-01-12 2018-08-24 彭洪兵 A kind of quick-feeding device for storage bin
CN211812396U (en) * 2020-03-04 2020-10-30 海普半导体(洛阳)有限公司 BGA tin ball blanking funnel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8205767A (en) * 1981-10-19 1983-09-06 Wurth Paul Sa CONTENT AND FILLING CONTROL DEVICE OF A PULVERULENT MATERIALS DISTRIBUTION RESERVOIR
CN205771125U (en) * 2016-07-05 2016-12-07 贵州盘江煤电建设工程有限公司 The drawing mechanism of a kind of feed bin inflated type and control system
CN206678296U (en) * 2017-04-25 2017-11-28 烟台日新航空科技有限公司 A kind of injecting machine material tube Aeroassisted blanking device
CN207759417U (en) * 2018-01-12 2018-08-24 彭洪兵 A kind of quick-feeding device for storage bin
CN211812396U (en) * 2020-03-04 2020-10-30 海普半导体(洛阳)有限公司 BGA tin ball blanking funnel

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Application publication date: 20211022