CN215396502U - Powder supply system for injection molding machine - Google Patents
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- CN215396502U CN215396502U CN202120031114.8U CN202120031114U CN215396502U CN 215396502 U CN215396502 U CN 215396502U CN 202120031114 U CN202120031114 U CN 202120031114U CN 215396502 U CN215396502 U CN 215396502U
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Abstract
The utility model provides a powder supply system for an injection molding machine, which has the technical scheme that: the powder storage device comprises a first stirrer for stirring A-type powder and a powder bin for storing B-type powder, wherein a first storage barrel for receiving the stirred A-type powder is arranged above and below the first stirrer, a pipe chain conveyor for conveying the powder is connected to the powder bin, the pipe chain conveyor is connected with a dryer for drying the powder, and the dryer is connected with a second storage barrel for storing the dried B-type powder; the powder supply system also comprises a second stirrer for mixing the A-type powder and the B-type powder, a plurality of weighing machines for weighing and proportioning the A-type powder and the B-type powder are arranged above the second stirrer, and a rotary feeder for conveying the mixed powder to an injection molding machine is arranged below the second stirrer; the powder feeding device has the advantages of high automatic stratification degree, capability of effectively improving the powder feeding efficiency and the like.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a powder supply system for an injection molding machine.
[ background of the utility model ]
When the injection molding machine is used for producing products, powdery raw materials and different kinds of powdery raw materials are required to be weighed and proportioned for production. However, many factories using injection molding machines require manual operations at the powder supply stage of the injection molding machine, which is complicated and inefficient. For this purpose, a powder supply system for an injection molding machine was developed.
[ Utility model ] content
The utility model provides a powder supply system for an injection molding machine, which aims to solve the problems of complex operation, low efficiency and the like in the powder supply stage of the injection molding machine.
In order to solve the above problems, the present invention provides the following technical solutions:
a powder supply system for an injection molding machine, characterized in that: the powder supply system comprises a first stirrer for stirring A-type powder and a powder bin for storing B-type powder, wherein a first storage barrel for receiving the stirred A-type powder is arranged below the first stirrer (the powder bin is connected with a pipe chain conveyor for conveying the powder, the pipe chain conveyor is connected with a dryer for drying the powder, the dryer is connected with a second storage barrel for storing the dried B-type powder, the powder supply system further comprises a second stirrer for mixing the A-type powder and the B-type powder, a plurality of weighing machines for weighing and proportioning the A-type powder and the B-type powder are arranged above the second stirrer, and a rotary feeder for conveying the mixed powder by an injection molding machine is arranged below the second stirrer.
The powder supply system for the injection molding machine is characterized in that: weighing machine top is equipped with a plurality ofly and extracts the powder hopper of inhaling of A type powder and B type powder respectively through first conveying pipeline and second conveying pipeline, inhale the powder hopper and be connected through the guide duct and have it inhales the high pressure positive blower that the powder hopper provided the wind pressure.
The powder supply system for the injection molding machine is characterized in that: the pipe chain conveyor comprises a conveying pipe, a chain is arranged in the conveying pipe, shifting pieces which are used for conveying powder and are arranged at equal intervals are arranged on the chain, the diameter of the shifting pieces is the same as the inner diameter of the conveying pipe, a motor box which is used for driving the chain to circularly operate in the conveying pipe is arranged at one end of the pipe chain conveyor, a third discharge hole which outputs B-type powder into the drying machine is formed in the other end of the pipe chain conveyor, and the pipe chain conveyor is connected to a second discharge hole in the bottom of the powder bin.
The powder supply system for the injection molding machine is characterized in that: the dryer comprises a roller, a fourth discharge port for outputting dried B-type powder into the second storage barrel is arranged at the tail end of the roller, an air heater for generating hot air and drying the powder in the roller is arranged on the dryer, a helical blade for rolling the powder to the fourth discharge port is arranged in the roller, and a motor platform for rotating the roller is arranged below the roller.
The powder supply system for the injection molding machine is characterized in that: the powder suction hopper comprises a hopper shell, the top of the hopper shell is provided with an air suction opening connected to the high-pressure fan through the air guide pipe, the side face of the hopper shell is provided with a material suction opening used for sucking powder, the bottom of the hopper shell is provided with a base used for mounting and fixing, a discharge opening connected to the weighing machine is arranged in the base, and the first conveying pipe and the second conveying pipe are respectively mounted on the material suction opening.
The powder supply system for the injection molding machine is characterized in that: the weighing machine comprises a weighing machine shell, a collecting hopper used for collecting powder is arranged above the weighing machine shell, a junction box used for wiring and internally provided with an electromagnetic valve device is arranged on one side of the weighing machine shell, a display screen used for displaying weighing information is arranged on the other side of the weighing machine shell, and an electric control box used for regulating and controlling the weighing machine is further arranged on the weighing machine shell; the weighing machine is characterized in that an air cylinder for controlling the switch of a material stopping plate at the bottom of the collecting hopper is arranged below the collecting hopper, a scale pan for weighing is arranged inside the weighing machine and below the material stopping plate, weighing sensors for detecting the weight of powder are arranged on two sides of the scale pan, and a pneumatic material stopping plate for controlling the output of the powder after weighing is arranged at the bottom of the scale pan.
The powder supply system for the injection molding machine is characterized in that: the second mixer is including the agitator, the agitator top install the weighing machine, the agitator bottom is equipped with the fifth discharge gate that is used for exporting the mixed powder, agitator side be equipped with be used for doing the agitator motor that the second mixer provided power, the agitator motor below is equipped with for the electronic box of agitator motor power supply, be equipped with control on the fifth discharge gate the valve of fifth discharge gate switch, first mixer with the structure of second mixer is the same.
The powder supply system for the injection molding machine is characterized in that: the rotary feeder comprises a rotary material pumping machine for pumping the mixed powder after stirring, an air pumping chamber for forming negative pressure is arranged above the rotary material pumping machine, and a positive pressure feeding fan for inputting the mixed powder into the injection molding machine through a third conveying pipe is arranged on the side of the rotary material pumping machine; and material control valves are arranged near the branch pipes on the third material conveying pipe.
The powder supply system for the injection molding machine is characterized in that: the high-pressure fans are provided with four high-pressure fans, the powder suction hoppers are provided with four high-pressure fans, and the powder suction hoppers are correspondingly connected to the high-pressure fans through the air guide pipes; the weighing machine is provided with two weighing machines, each weighing machine is provided with two collecting hoppers, the top of each collecting hopper is provided with a feed inlet for inputting powder, the powder suction hoppers are arranged above the collecting hoppers, and feed openings in the powder suction hoppers are correspondingly connected with the feed inlets at the tops of the collecting hoppers.
The powder supply system for the injection molding machine is characterized in that: the powder weighing device is characterized in that the number of the first conveying pipelines and the number of the second conveying pipelines are two, one first conveying pipeline is arranged on one powder suction hopper above one weighing machine, the other first conveying pipeline is arranged on the other powder suction hopper above the other weighing machine, and the second conveying pipelines are respectively arranged on the other two powder suction hoppers above the two weighing machines.
Compared with the prior art, the utility model has the following advantages:
1. the powder supply system for the injection molding machine is provided with the pipe chain conveyor, and can automatically convey powder in the powder bin into the drying machine for drying.
2. The powder supply system for the injection molding machine is provided with the dryer, the powder can be dried through hot air, and the dried powder is transmitted into the second storage barrel through the helical blade in the roller.
3. The powder supply system for the injection molding machine is provided with the powder suction hopper and the high-pressure fan, and can quickly suck required powder into the weighing machine.
4. The powder supply system for the injection molding machine is provided with the weighing machine and the second stirrer, can automatically weigh and proportion the A-type powder and the B-type powder, and simultaneously stirs and mixes the weighed and proportioned powder, so that the supply efficiency is greatly improved.
[ description of the drawings ]
FIG. 1 is an overall view of the powder supply system;
fig. 2 is an overall view of the pipe chain conveyor and the powder bin;
fig. 3 is an overall view of the dryer;
FIG. 4 is a top sectional view of the dryer;
FIG. 5 is an overall view of the powder suction hopper and the high pressure fan;
FIG. 6 is an overall view of the weighing machine;
FIG. 7 is a cross-sectional view of the weighing machine;
FIG. 8 is an overall view of the second stirring machine;
figure 9 is an overall view of the rotary feeder.
In the figure: 1 is a first stirrer; 2 is a first storage barrel; 3 is a powder bin; 4 is a pipe chain conveyor; 5 is a drier; 6 is a second storage barrel; 7 is a first material conveying pipe; 8 is a second conveying pipeline; 9 is a powder suction hopper; 10, a weighing machine; 11 is a second stirrer; 12 is a high pressure fan; 13 is a rotary feeder; 14 is a third conveying pipeline; 15 is an injection molding machine; 101 is a first discharge hole; 301 is a second discharge hole; 401 is a third discharge hole; 402 is a conveying pipe; 403 is a chain; 404 is a plectrum; 405 is a motor case; 501 is a fourth discharge hole; 502 is a roller; 503 is a hot air blower; 504 is a helical blade; 505 is a motor platform; 901 is a hopper shell; 902 is an air extraction port; 903 is a material pumping port; 904 is a base; 905 is a feed opening; 1001 is the shell of the weighing machine; 1002 is a collecting hopper; 1003 is a junction box; 1004 is a display screen; 1005 is an electric cabinet; 1006 is a stopping plate; 1007 is a cylinder; 1008 is a scale pan; 1009 is a weighing sensor; 1010 is a pneumatic material closing plate; 1011 is a feed inlet; 1101 is a fifth discharge hole; 1102 is a stirring barrel; 1103 is a stirring motor; 1104 is an electric box; 1105 is a valve; 1201 is a wind guide pipe; 1301 is a rotary material pumping machine; 1302 is an air extraction chamber; 1303 is a positive pressure feeding fan; 1401 is a control valve.
[ detailed description ] embodiments
The technical features of the present invention will be described in further detail with reference to the accompanying drawings so that those skilled in the art can understand the technical features.
A powder supply system for an injection molding machine only protects the mechanical structure of the powder supply system, wherein the circuit structure is common knowledge, as shown in figures 1-9, the powder supply system comprises a first stirrer 1 for stirring A-type powder and a powder bin 3 for storing B-type powder, a first storage barrel 2 for receiving the stirred A-type powder is arranged below a first discharge port 101 on the first stirrer 1, a pipe chain conveyor 4 for conveying the powder is connected to the powder bin 3, the pipe chain conveyor 4 is connected with a dryer 5 for drying the powder, and the dryer 5 is connected with a second storage barrel 6 for storing the dried B-type powder; the powder supply system also comprises a second stirrer 11 for mixing A-type powder and B-type powder, a plurality of weighing machines 10 for weighing and proportioning the A-type powder and the B-type powder are arranged above the second stirrer 11, and a rotary feeder 13 for conveying the mixed powder for a plurality of injection molding machines 15 is arranged below the second stirrer 11.
In addition, weighing machine 10 top is equipped with a plurality ofly and extracts inhaling powder hopper 9 of A type powder and B type powder respectively through first conveying pipeline 7 and second conveying pipeline 8, it is connected with through guide duct 1201 to inhale powder hopper 9 and is done inhale the high pressure positive blower 12 that powder hopper 9 provided the wind pressure, every it all corresponds one to inhale powder hopper 9 high pressure positive blower 12, can extract required powder fast.
Specifically, the pipe chain conveyor 4 comprises a conveying pipe 402, a chain 403 is arranged in the conveying pipe 402, equally-spaced shifting pieces 404 for conveying powder are mounted on the chain 403, the diameter of the shifting pieces 404 is the same as the inner diameter of the conveying pipe 402, a motor box 405 for driving the chain 403 to circularly operate in the conveying pipe 402 is arranged at one end of the pipe chain conveyor 4, a third discharge hole 401 for outputting B-type powder into the dryer 5 is arranged at the other end of the pipe chain conveyor 4, and the pipe chain conveyor 4 is connected to the second discharge hole 301 at the bottom of the powder bin 3.
Specifically, the dryer 5 includes a roller 502, a fourth discharge port 501 for outputting the dried B-type powder material into the second storage bin 6 is disposed at the end of the roller 502, a hot air blower 503 for generating hot air and drying the powder material in the roller is disposed on the dryer 5, a helical blade 504 for rolling the powder material toward the fourth discharge port 501 is disposed inside the roller 502, and a motor platform 505 for rotating the roller 502 is disposed below the roller 502; the roller 502 is in a rotating state during the drying process of the type B powder, and the helical blade 504 inside the roller 502 slowly transfers the gradually dried type B powder to the fourth discharging hole 501.
Specifically, the powder suction hopper 9 includes a hopper shell 901, an air suction opening 902 connected to the high pressure fan 12 through the air guide pipe 1201 is arranged at the top of the hopper shell 901, a material suction opening 903 for sucking powder is arranged on the side surface of the hopper shell 901, a base 904 for mounting and fixing is arranged at the bottom of the hopper shell 901, a discharge opening 905 connected to the weighing machine 10 is arranged in the base 904, and the first material conveying pipe 7 and the second material conveying pipe 8 are respectively mounted on the material suction opening 903.
Specifically, the weighing machine 10 comprises a weighing machine shell 1001, a collecting hopper 1002 used for collecting powder is arranged above the weighing machine shell 1001, a junction box 1003 used for wiring and internally provided with an electromagnetic valve device is arranged on one side of the weighing machine shell 1001, a display screen 1004 used for displaying weighing information is arranged on the other side of the weighing machine shell 1001, and an electric control box 1005 used for regulating and controlling the weighing machine 10 is further arranged on the weighing machine shell 1001; an air cylinder 1007 for controlling the opening and closing of a material stopping plate 1006 at the bottom of the collecting hopper 1002 is arranged below the collecting hopper 1002, a scale 1008 for weighing is arranged inside the weighing machine 10 and below the material stopping plate 1006, weighing sensors 1009 for detecting the weight of powder are arranged on two sides of the scale 1008, and a pneumatic material closing plate 1010 for controlling the output of the powder after weighing is arranged at the bottom of the scale 1008.
Specifically, the second stirrer 11 is provided with a stirring barrel 1102, the weighing machine 10 is installed above the stirring barrel 1102, a fifth discharge port 1101 for outputting mixed powder is arranged at the bottom of the stirring barrel 1102, a stirring motor 1103 used for providing power for the second stirrer 11 is arranged on the side of the stirring barrel 1102, an electric box 1104 for supplying power to the stirring motor 1103 is arranged below the stirring motor 1103, a valve 1105 for controlling the opening and closing of the fifth discharge port 1101 is arranged on the fifth discharge port 1101, and the first stirrer 1 and the second stirrer 11 are identical in structure.
Specifically, the rotary feeder 13 comprises a rotary material pumping machine 1301 for pumping the mixed powder after stirring, an air pumping chamber 1302 for forming negative pressure is arranged above the rotary material pumping machine 1301, and a positive pressure feeding fan 1303 for feeding the mixed powder into the injection molding machine 15 through a third material conveying pipe 14 is arranged on the side of the rotary material pumping machine 1301; a material control valve 1401 is arranged near the branch pipe of the third material conveying pipe 14.
In addition, four high-pressure fans 12 are arranged, four powder suction hoppers 9 are arranged, and the powder suction hoppers 9 are correspondingly connected to the high-pressure fans 12 through the air guide pipes 1201; weighing machine 10 is equipped with two, every weighing machine 10 on all be equipped with two collecting hopper 1002, collecting hopper 1002 top all is equipped with the feed inlet 1011 that is used for inputing the powder, all install collecting hopper 1002 top inhale powder hopper 9, inhale feed opening 905 on the powder hopper 9 with the feed inlet 1011 at collecting hopper 1002 top corresponds and connects.
Specifically, two first conveying pipelines 7 and two second conveying pipelines 8 are arranged, one first conveying pipeline 7 is installed on one powder suction hopper 9 above one weighing machine 10, the other first conveying pipeline is installed on one powder suction hopper 9 above the other weighing machine 10, and the second conveying pipelines 8 are respectively installed on the other two powder suction hoppers 9 above the two weighing machines 10; each conveying pipeline corresponds to one powder suction hopper 9, and the powder conveying efficiency is higher.
The specific working process of the powder supply system is as follows:
the first stirrer 1 conveys the stirred A-type powder into the first storage barrel 2 through the first discharge hole 101; meanwhile, the pipe chain conveyor 4 conveys the B-type powder in the powder bin 3 into the roller 502 of the dryer 5 for hot air drying, the roller 502 is in a rotating state in the drying process of the B-type powder, and the helical blades 504 in the roller 502 slowly convey the gradually dried B-type powder into the second storage barrel 6; at this time, the previous treatment of the type A powder and the type B powder is finished;
after the powder preprocessing is completed, the high pressure fan 12 and the powder suction hopper 9 are opened, the high pressure fan 12 provides air pressure for the powder suction hopper 9 through the air guide pipe 1201, the powder suction hopper 9 extracts the a-type powder in the first storage tank 2 into the two corresponding collecting hoppers 1002 on the weighing machine 10 through the first conveying pipe 7, and similarly, the powder suction hopper 9 extracts the B-type powder in the second storage tank 6 into the other two corresponding collecting hoppers 1002 through the second conveying pipe 8;
when the weighing machine 10 starts to work, the material stopping plate 1006 and the pneumatic material stopping plate 1010 are both in a closed state, after the powder in the collecting hopper 1002 is input, the air cylinder 1007 opens the material stopping plate 1006 corresponding to the collecting hopper 1002 containing the a-type powder, and the scale 1008 starts to detect the weight of the powder by combining with the weighing sensor 1009 and displays the weight through the display screen 1004; when the a-type powder on the scale 1008 reaches a set value, the air cylinder 1007 controls the corresponding material stopping plate 1006 to close, then the pneumatic material stopping plate 1010 is opened, the a-type powder is output into the roller 502 of the second stirrer 11, when the a-type powder on the scale 1008 is output, the pneumatic material stopping plate 1010 is closed, and the weighing machine 10 returns to an initial state;
similarly, after the B-type powder is weighed proportionally by the above process, the second stirrer 11 starts to stir, after the stirring is completed, the valve 1105 on the fifth discharge port 1101 is opened, and the rotary feeder 13 utilizes the positive pressure feed fan 1303 to convey the uniformly mixed powder into the injection molding machine 15 through the third feed pipe 14; at this point, the powder supply system completes the supply of the injection molding machine 15.
The described embodiments of the utility model are merely illustrative of the preferred embodiments of the utility model and are not limited to the precise arrangements described above and shown in the drawings and various modifications and changes may be made without departing from the scope thereof. Rather than limiting the spirit and scope of the utility model, which is limited only by the appended claims. Without departing from the design concept of the present invention, various modifications and improvements of the technical solution of the present invention made by the engineers in the field shall fall into the protection scope of the present invention.
Claims (10)
1. A powder supply system for an injection molding machine, characterized in that: the powder mixing machine comprises a first stirrer (1) for stirring A-type powder and a powder bin (3) for storing B-type powder, wherein a first storage barrel (2) for receiving the stirred A-type powder is arranged below the first stirrer (1), a pipe chain conveyor (4) for conveying the powder is connected to the powder bin (3), the pipe chain conveyor (4) is connected with a dryer (5) for drying the powder, and the dryer (5) is connected with a second storage barrel (6) for storing the dried B-type powder; the powder supply system further comprises a second stirrer (11) used for mixing A-type powder and B-type powder, a plurality of weighing machines (10) used for weighing and proportioning the A-type powder and the B-type powder are arranged above the second stirrer (11), and a rotary feeder (13) used for conveying the mixed powder for an injection molding machine (15) is arranged below the second stirrer (11).
2. A powder supply system for an injection molding machine as defined in claim 1, wherein: weighing machine (10) top is equipped with a plurality ofly and extracts inhaling powder hopper (9) of A type powder and B type powder respectively through first conveying pipeline (7) and second conveying pipeline (8), it is connected with through guide duct (1201) and is done to inhale powder hopper (9) high pressure positive blower (12) that provide the wind pressure.
3. A powder supply system for an injection molding machine as defined in claim 1, wherein: the pipe chain conveyor (4) comprises a conveying pipe (402), a chain (403) is arranged in the conveying pipe (402), shifting pieces (404) which are used for conveying powder and are arranged at equal intervals are arranged on the chain (403), the diameter of the shifting pieces (404) is the same as the inner diameter of the conveying pipe (402), a motor box (405) which is used for driving the chain (403) to circularly operate in the conveying pipe (402) is arranged at one end of the pipe chain conveyor (4), a third discharge hole (401) which is used for outputting B-type powder to the dryer (5) is arranged at the other end of the pipe chain conveyor (4), and the pipe chain conveyor (4) is connected to a second discharge hole (301) in the bottom of the powder bin (3).
4. A powder supply system for an injection molding machine as defined in claim 3, wherein: the dryer (5) comprises a roller (502), a fourth discharge hole (501) for outputting dried B-type powder to the second storage barrel (6) is formed in the tail end of the roller (502), a hot air blower (503) for generating hot air and drying the powder in the roller is arranged on the dryer (5), a spiral blade (504) for rolling the powder to the fourth discharge hole (501) is arranged inside the roller (502), and a motor table (505) for rotating the roller (502) is arranged below the roller (502).
5. A powder supply system for an injection molding machine as defined in claim 2, wherein: the powder suction hopper (9) comprises a hopper shell (901), the top of the hopper shell (901) is provided with an air suction opening (902) connected to the high-pressure fan (12) through the air guide pipe (1201), the side surface of the hopper shell (901) is provided with a material suction opening (903) used for sucking powder, the bottom of the hopper shell (901) is provided with a base (904) used for installation and fixation, the base (904) is internally provided with a feed opening (905) connected to the weighing machine (10), and the first feed conveying pipe (7) and the second feed conveying pipe (8) are respectively installed on the material suction opening (903).
6. A powder supply system for an injection molding machine as defined in claim 5, wherein: the weighing machine (10) comprises a weighing machine shell (1001), a collecting hopper (1002) used for collecting powder is arranged above the weighing machine shell (1001), a junction box (1003) used for wiring and internally provided with an electromagnetic valve device is arranged on one side of the weighing machine shell (1001), a display screen (1004) used for displaying weighing information is arranged on the other side of the weighing machine shell (1001), and an electric control box (1005) used for regulating and controlling the weighing machine (10) is further arranged on the weighing machine shell (1001); the pneumatic powder weighing device is characterized in that an air cylinder (1007) for controlling the opening and closing of a material stopping plate (1006) at the bottom of the material collecting hopper (1002) is arranged below the material collecting hopper (1002), a weighing scale (1008) for weighing is arranged inside the weighing machine (10) and below the material stopping plate (1006), weighing sensors (1009) for detecting the weight of powder are installed on two sides of the weighing scale (1008), and a pneumatic material stopping plate (1010) for controlling the output of the powder after weighing is arranged at the bottom of the weighing scale (1008).
7. A powder supply system for an injection molding machine as defined in claim 4, wherein: second mixer (11) is including agitator (1102), install agitator (1102) top weighing machine (10), agitator (1102) bottom is equipped with fifth discharge gate (1101) that is used for exporting mixed powder, agitator (1102) side is equipped with and is used for doing agitator motor (1103) that second mixer (11) provided power, agitator motor (1103) below is equipped with do agitator motor (1103) power supply's electric box (1104), be equipped with the control on fifth discharge gate (1101) valve (1105) of fifth discharge gate (1101) switch, first mixer (1) with the structure of second mixer (11) is the same.
8. A powder supply system for an injection molding machine as defined in claim 1, wherein: the rotary feeder (13) comprises a rotary material pumping machine (1301) for pumping mixed powder after stirring, an air pumping chamber (1302) for forming negative pressure is arranged above the rotary material pumping machine (1301), and a positive pressure feeding fan (1303) for inputting the mixed powder into the injection molding machine (15) through a third material conveying pipe (14) is arranged on the side of the rotary material pumping machine (1301); and material control valves (1401) are arranged near the branch pipes on the third material conveying pipes (14).
9. A powder supply system for an injection molding machine as defined in claim 6, wherein: four high-pressure fans (12) are arranged, four powder suction hoppers (9) are arranged, and the powder suction hoppers (9) are correspondingly connected to the high-pressure fans (12) through the air guide pipes (1201); weighing machine (10) are equipped with two, every weighing machine (10) on all be equipped with two collecting hopper (1002), collecting hopper (1002) top all is equipped with feed inlet (1011) that are used for the input powder, collecting hopper (1002) top all installs inhale powder hopper (9), inhale feed opening (905) on powder hopper (9) with feed inlet (1011) at collecting hopper (1002) top correspond the connection.
10. A powder supply system for an injection molding machine as defined in claim 9, wherein: first conveying pipeline (7) with second conveying pipeline (8) all are equipped with two, install one of them in first conveying pipeline (7) one of weighing machine (10) top inhale powder hopper (9) on, another install one of weighing machine (10) top inhale on the powder hopper (9), second conveying pipeline (8) are installed two respectively the other two of weighing machine (10) top inhale on the powder hopper (9).
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CN202120031114.8U CN215396502U (en) | 2021-01-06 | 2021-01-06 | Powder supply system for injection molding machine |
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