CN112265830A - Automatic material feeding system and automatic material feeding control method - Google Patents
Automatic material feeding system and automatic material feeding control method Download PDFInfo
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- CN112265830A CN112265830A CN202011229284.3A CN202011229284A CN112265830A CN 112265830 A CN112265830 A CN 112265830A CN 202011229284 A CN202011229284 A CN 202011229284A CN 112265830 A CN112265830 A CN 112265830A
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- 239000000463 material Substances 0.000 title claims abstract description 264
- 238000000034 method Methods 0.000 title claims abstract description 28
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- 238000004372 laser cladding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
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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
- B65G65/00—Loading or unloading
- B65G65/005—Control arrangements
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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
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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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
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
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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
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
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Abstract
The invention discloses an automatic material feeding system and an automatic material feeding control method. The automatic material feeding system comprises: the material storage mechanism is provided with a material outlet end; the conveying mechanism comprises a plurality of conveying units which are sequentially connected end to end, and is provided with a material receiving end and a plurality of material conveying ends which are sequentially arranged along the length direction of the material receiving end, wherein the material receiving end is connected with the material discharging end; the powder feeding mechanism comprises a plurality of powder feeding mechanisms, each powder feeding mechanism is provided with a feeding end, and each feeding end is correspondingly connected with one conveying end. Possess a pair of many feeding modes, the feeding efficiency is high.
Description
Technical Field
The invention is suitable for the technical field of laser cladding and the technical field of plasma cladding, and particularly relates to an automatic material feeding system and an automatic material feeding control method.
Background
Laser cladding is a novel processing and manufacturing technology, and a layer of material with special physical, chemical or mechanical properties is cladded on the surface of a base material by utilizing high-energy laser beam irradiation and through rapid melting, expansion and solidification to form a new material different from the base material so as to make up for the lack of high performance of the base body. During laser cladding, alloy powder is conveyed by a negative pressure type powder feeder through high-pressure inert gas to form a powder carrying flow with certain rigidity and directly enter a cladding molten pool. The powder-carrying airflow is inert gas, so that the oxidation in the laser cladding process can be effectively prevented; the rigid powder flow can be used in a synchronous lateral or coaxial powder feeding nozzle to realize three-dimensional laser cladding.
However, in the feeding process of the existing powder feeder, a one-to-one feeding mode is adopted, namely, one storage mechanism corresponds to one powder feeding mechanism for feeding, and the automatic feeding mode is not available, the feeding efficiency is low, and the automatic control requirement of mass production cannot be met.
Disclosure of Invention
The invention aims to provide an automatic material feeding system and an automatic material feeding control method, which have the advantages of one-to-many automatic feeding, high feeding efficiency and capability of meeting the automatic control requirement of mass production.
The technical scheme adopted by the invention for realizing the aim is as follows: an automatic material feeding system, comprising: the material storage mechanism is provided with a material outlet end; the conveying mechanism comprises a plurality of conveying units which are sequentially connected end to end, and is provided with a receiving end and a plurality of conveying ends which are sequentially arranged along the length direction of the receiving end, wherein the receiving end is connected with the discharging end; the powder feeding mechanism comprises a plurality of powder feeding mechanisms, each powder feeding mechanism is provided with a feeding end, and each feeding end is correspondingly connected with one conveying end.
The conveying mechanism can convey materials in the material storage mechanism to the plurality of powder conveying mechanisms through the material conveying end, so that a one-to-many automatic feeding process is realized, and the automatic control requirement of mass production can be met.
Further, the conveying mechanism includes: a drive section; the first conveying unit is sequentially provided with the material receiving end and one material conveying end along the conveying direction and is in transmission connection with the driving part; the second conveying units are sequentially connected in a transmission manner along the conveying direction and are respectively provided with a material receiving end and a material conveying end; wherein the driving part can drive the first conveying unit and the at least one second conveying unit to convey the materials.
So that the powder to be conveyed passes through the first conveying unit and the at least one second conveying unit in sequence according to the conveying direction.
Furthermore, the second conveying unit at the tail end of the at least one second conveying unit is provided with two conveying ends which are sequentially arranged along the conveying direction, wherein the conveying end close to the front in the conveying direction is connected to the feeding end of one powder feeding mechanism, and the conveying end close to the back in the conveying direction is connected with a material receiving container.
The receiving container is used for receiving excess materials generated in the conveying process of the conveying mechanism, and is convenient to recycle.
Further, the first conveying unit and each of the second conveying units have the same structure, and each of the first conveying units and each of the second conveying units includes: the shell is of a hollow cylindrical structure; the transmission assembly is rotatably arranged in the shell; the shells of two adjacent conveying units are hermetically connected, and the transmission assemblies of the two adjacent conveying units are respectively in transmission connection; the transmission assembly of the first conveying unit is in transmission connection with the driving part.
So that the driving part can be in transmission connection with the first conveying unit and each second conveying unit.
Further, the stock mechanism includes: the material storage shell is internally provided with a material storage space, and one side close to the conveying mechanism is provided with a material discharge end communicated with the material storage space; the first material monitoring positions are respectively arranged at different heights of the material storage shell; first atmospheric pressure balance end is located storage shell's position is higher than a plurality of first material monitoring position are located respectively storage shell's height: each powder feeding mechanism respectively comprises: the charging barrel is provided with a material accommodating space, and one side close to the conveying mechanism is provided with a feeding end communicated with the material accommodating space; a plurality of second material monitoring bits respectively provided at different heights of the charging barrel; the second air pressure balance end is arranged at the position of the material barrel, and is higher than the plurality of second material monitoring positions which are respectively positioned at the height of the material barrel; a feeder connected to the cartridge.
The multiple first material monitoring positions are used for monitoring the material content of the material storage shell, and according to different contents, the automatic material feeding system performs corresponding operation to enable the materials in the material storage shell to be balanced all the time; the first air pressure balance end is used for automatically controlling air pressure in the material storage shell, and the automatic feeding process of the material storage shell is achieved.
Further, conveying mechanism still is equipped with a plurality of third atmospheric pressure balanced ends, and respectively with a plurality of second atmospheric pressure balanced ends and first atmospheric pressure balanced end one-to-one sets up, material automatic material conveying system still includes: the air pressure communicating pipes are respectively communicated with the first air pressure balancing end and one corresponding third air pressure balancing end, and each second air pressure balancing end and one corresponding third air pressure balancing end; and each air pressure communicating pipe is also provided with a first control valve. The first control valve controls the air pressure in the material storage mechanism, the air pressure in the conveying mechanism and the air pressure in the powder feeding mechanism to keep balance, so that air flow circulation conveying is formed, and automatic feeding of materials in the automatic material feeding system is promoted.
Further, a plurality of sensors are respectively provided at the plurality of first material monitoring positions and the plurality of second material monitoring positions; and the second control valves are respectively connected between the discharge end and the receiving end, between the conveying end and the receiving container and between each conveying end and the corresponding feeding end.
The controller is used for acquiring position information of the material when the material is positioned at one of the first material monitoring position and the second material monitoring position, transmitting the information to the controller, and controlling the corresponding control valve and the corresponding driving part to perform corresponding reaction by the controller.
Further, the storing mechanism further comprises: the negative pressure device is arranged in the material storage shell and used for generating negative pressure for the material storage space; wherein the storage shell is also provided with a feeding end; the automatic material feeding system further comprises: and the open-type powder storage container is arranged on one side of the powder storage mechanism and communicated to the feeding end through a feeding pipeline provided with a second control valve.
Through setting up negative pressure device, take the atmospheric pressure in the storage casing to the outside out, make the atmospheric pressure in the storage casing be less than outside atmospheric pressure, make the material in the outside open-type powder storage container automatic get into in the storage casing from the feed end, realize automatic feed.
Further, the method also comprises the following steps: and the control end is electrically connected with the plurality of sensors, the plurality of second control valves, the plurality of first control valves, the conveying mechanism and the negative pressure device.
The automatic feeding device is used for correspondingly controlling the corresponding second control valve, the first control valve, the conveying mechanism and the negative pressure device to do corresponding actions according to the material height information fed back by the sensor, so that the automatic feeding process of the automatic material feeding system is realized.
An automatic material feeding control method applied to any one of the automatic material feeding systems comprises the following steps:
s1, respectively acquiring a first height information value H1 of a material storage surface of a material stored in a material storage mechanism in the material storage mechanism and a second height information value H2 of the material storage surface of the material stored in any one of at least two powder feeding mechanisms in the corresponding powder feeding mechanism;
s2, simultaneously determining the first height information value H1 and a plurality of second height information values H2 respectively;
and S3, according to the judgment of the first height information value H1 and the plurality of second height information values H2, the material storage mechanism and each powder feeding mechanism complete material feeding and feeding.
After the technical scheme of the invention is adopted, the following technical effects can be achieved: the automatic feeding device has the advantages that the automatic feeding and conveying of one to many is realized, the feeding efficiency is greatly improved, and the automatic control requirement of mass production can be met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic material feeding system 100 according to the present invention.
Fig. 2 is a schematic structural diagram of the automatic material feeding system 100 in fig. 1.
Fig. 3 is a schematic structural diagram of the conveying mechanism 20 in fig. 1.
Fig. 4 is a schematic structural view of the conveying unit.
Fig. 5 is a schematic view of the internal structure of fig. 4.
Fig. 6 is a schematic structural diagram of the transmission assembly 214 in fig. 4.
Fig. 7 is a partially enlarged view of a in fig. 3.
Fig. 8 is a flow chart of an automatic material feeding control method.
Fig. 9 is another installation schematic of the delivery end 23 of fig. 4.
Fig. 10 is a cross-sectional view a-a of fig. 9.
Description of the main element symbols:
1 is a material storage shell; 201 is an open type powder storage container; 202 is a feed end; 3 is a second upper limit; 4 is a second lower limit; 5 is an alert value; 6 is a first air pressure balance end; 601 is an air pressure communicating pipe; 7 is a negative pressure device; 701 is a fan; 702 is an air outlet; 703 is a third control valve; 704 is an air inlet; 8 is a vibration stirring mechanism; 801 is a stirring motor; 802 is a filter; 803 is a vibration motor; 804 is a stirring shaft; 10 is a material storage mechanism; 20 is a conveying mechanism; 21 is a driving part; 211 is a speed reducing motor; 212 is a screw; 213 is a shell; 214 is a transmission component; 215 is a conveying channel; 216 is a bearing; 217 is a bearing seat; 218 is a coupling; (ii) a 220 is a bearing cover; 22 is a receiving end; 23 is a material conveying end; 24 is a second control valve; 26 is a first control valve; 261 is a third air pressure balance end; 29 is a material receiving container; 30 is a powder feeding mechanism; 31 is a charging barrel; 32 is a second air pressure balance end; 33 is a first upper limit; 34 is a first lower limit; 35 is a feeder; 36 is a feeding end; 37 is a sensor; 100 is an automatic material feeding system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1, an automatic material feeding system 100 includes a storage mechanism 10, a conveying mechanism 20, and at least two powder feeding mechanisms 30.
Specifically, the material storage mechanism 10 is provided with a discharge end arranged at the lower end of the material storage mechanism 10; the conveying mechanism 20 is provided with a receiving end 22 connected with the discharging end in a matching way and a plurality of conveying ends 23 arranged in sequence along the conveying direction; each powder feeding mechanism 30 is provided with a feeding end 36 and is correspondingly connected with the conveying end 23. The conveying mechanism 20 can convey the materials in the material storage mechanism 10 to the powder conveying mechanisms 30 through the conveying end 23 respectively, so that a one-to-many automatic feeding process is realized, and the automatic control requirement of mass production can be met.
For example, the feeding end 23 may be as shown in fig. 1, that is, the outlet direction of the feeding end 23 is vertical downward; of course, the material conveying end 23 can also be arranged at the side of the conveying mechanism 20, as shown in fig. 9 and 10, namely, the outlet direction of the material conveying end 23 and the vertical direction of the conveying mechanism 20 are at a certain inclination angle, so that the material can be conveyed backwards in the actual conveying process of the conveying mechanism 20, the problem that the material conveying direction of the material conveying end 23 is unbalanced in material conveying under the conveying mechanism 20 is avoided, each material conveying end 23 is enabled to synchronously discharge powder, and the material is prevented from being sequentially filled from the front to the back in the actual conveying process.
Preferably, with reference to fig. 3, the conveying means 20 comprise: a driving part 21, a first conveying unit (including one first conveying unit in the figure) and at least one second conveying unit (including two second conveying units in the figure).
Specifically, the driving part 21 is in transmission connection with a first conveying unit and a second conveying unit which is in transmission connection with the first conveying unit in sequence along the conveying direction; the first conveying unit and each second conveying unit are provided with a receiving end 22 and a conveying end 23 in turn along the conveying direction. Set up transmission connection drive division 21, drive first conveying unit and rather than the transmission of at least one second conveying unit who is connected through the drive division for conveying mechanism 20 can transmit the material transmission to each second conveying unit from first conveying unit in proper order, improves material transfer chain efficiency, and transmit the material to each powder feeding mechanism 30 who is connected with defeated material end 23 in proper order through each material end 23, realize a material transfer process a pair of many. For example, a speed reduction motor 211 is further disposed between the driving portion 21 and the first conveying unit for speed reduction; the driving part 21 may be a motor for transmission.
Preferably, referring to fig. 4, the first conveying unit and each of the second conveying units have the same structure and each of the first conveying units and each of the second conveying units includes: a hollow cylindrical-structured housing 213; a transmission assembly 214 rotatably disposed inside the housing 213; wherein, the shells 213 of two adjacent conveying units are connected in a sealing way, and the transmission assemblies 214 of the two conveying units are in transmission connection; the transmission component of the first conveying unit is also in transmission connection with a driving part 21.
Specifically, referring to fig. 3 and 5, the transmission assembly 214 includes bearing seats 217 connected to both ends of the housing 213, and a screw 212 in transmission connection with the driving part 21; the surface of the screw 212 is provided with helical blades which are distributed along the conveying direction of the screw 212; the conveying mechanism is convenient for conveying the materials to the tail end along the starting end of the conveying mechanism 20, and the materials can be loosened in the spiral conveying process, so that the materials are conveyed uniformly; referring to fig. 6 and 7, bearings 216 are respectively embedded in bearing seats 217, a conveying channel 215 is further arranged between the bearing seats 217 and the mounting positions of the bearings 216 and used for conveying materials, the bearings 216 are sleeved on the screw rods 212, grooves (not shown) are formed in the end portions between the adjacent screw rods 212, and the adjacent screw rods 212 are in transmission connection through a coupling piece 218 matched with the grooves, so that the driving portion can be in transmission connection with the first conveying unit and each second conveying unit; the bearing block 217 is further provided with a bearing cover 220 which covers the outside of the bearing, so that the tightness of the connection between the conveying units is improved. For example: the transmission connection is realized by one of the two adjacent conveying units provided with a groove and one provided with a convex column in a plugging manner; certainly, other structures can also realize that a conveying motor drives longer conveying mechanism to operate by arranging a plurality of detachable conveying units, and the details are not repeated here.
Example 2:
this example is a further optimization scheme based on example 1:
referring to fig. 2-3, the last second conveying unit of the at least one second conveying unit is provided with two conveying ends 23 at the rear, and the two conveying ends 23 are sequentially arranged along the conveying direction, wherein the conveying end 23 which is sequentially first (closer to the left side in fig. 3) is connected to the feeding end 36 of one powder feeding mechanism 30, and the conveying end 23 which is sequentially next (closer to the right side in fig. 3) is connected to the receiving container 29. The receiving container 29 is used for receiving the excess materials generated in the conveying process of the conveying mechanism 20, and is convenient to recycle.
Preferably, the magazine 10 includes: a storage housing 1, a plurality of first material monitoring bits (not shown in the figure) and a first air pressure balancing end 6; each of the powder feeding mechanisms 30 includes: a barrel 31, a plurality of second material monitoring bits (not shown), a second air pressure balancing port 32, and a feeder 35.
Specifically, a material storage space is arranged in the material storage shell 1, and a material discharge end communicated with the material storage space is arranged at one side close to the conveying mechanism 20; a plurality of first material monitoring positions are respectively arranged at different heights of the material storage shell; from top to bottom do in proper order: the second upper limit 3, the second lower limit 4 and the warning value 5 are used for monitoring the material content of the material storage shell 1, and the automatic material feeding system performs corresponding operation according to different contents, so that the materials in the material storage shell 1 are balanced all the time; the first air pressure balance end 6 is arranged at the position of the material storage shell, is higher than the second upper limit 3 and is positioned at the height of the material storage shell 1; the first air pressure balance end 6 is used for automatically controlling the air pressure in the material storage shell 1, and the automatic feeding process of the material storage shell 1 is realized. For example, the first air pressure balance end 6 is connected to the conveying mechanism 20 through an air pressure communicating pipe 601, and the first air pressure balance end 6 is further provided with a control valve 26 installed on the air pressure communicating pipe 601 connecting the conveying mechanism 20 and the first air pressure balance end 6, and the control valve 26 is controlled to open and close to control the air pressure in the material storage housing 1.
The charging barrel 31 is internally provided with a material accommodating space, and one side close to the conveying mechanism 20 is provided with a feeding end 36 communicated with the material accommodating space; a plurality of second material monitoring positions with different heights are arranged on the surface of the charging barrel 31; from top to bottom do in proper order: the first upper limit 33 and the first lower limit 34 are used for monitoring the content of the materials in the charging barrel 31, and the automatic material feeding system performs corresponding operation according to different contents so that the materials in the charging barrel 31 are balanced all the time; the second air pressure balance end 32 is arranged at the position of the material barrel 31, which is higher than the first upper limit 33 and is positioned at the height of the material barrel 31; the air pressure in the charging barrel 31 is balanced, so that the materials can be smoothly collected in the charging barrel 31; and a feeder 35 connected to the cartridge 31. The feeder 35 is for receiving material in the barrel 31.
Preferably, the conveying mechanism 20 is further provided with a plurality of third air pressure balance ends 261 respectively corresponding to the plurality of second air pressure balance ends 32 and the first air pressure balance ends 6 one by one; the automatic material feeding system 100 further includes: a plurality of air pressure communicating pipes 601 respectively communicating the first air pressure balance end 6 with a corresponding one of the third air pressure balance ends 261, and each of the second air pressure balance ends 32 with a corresponding one of the third air pressure balance ends 261; wherein, each pneumatic communicating pipe 601 is further provided with a first control valve 26. The first control valve 26 is used for controlling the air pressure in the storing mechanism 10, the conveying mechanism 20 and the powder feeding mechanism 30 to be balanced, so as to form air circulation conveying and promote the automatic feeding of the material in the automatic material feeding system 100.
The preferred automatic material feeding system 100 further includes a plurality of sensors 37 respectively disposed at the plurality of first material monitoring positions and the plurality of second material monitoring positions; a plurality of second control valves 24 are connected between the discharge end and the receiving end 22, between the delivery end 23 and the receiving container 29, and between each delivery end 23 and the corresponding input end 36. The controller is used for acquiring position information of the material when the material is positioned at one of the first material monitoring position and the second material monitoring position, transmitting the information to the controller, and controlling the corresponding control valve and the corresponding driving part to perform corresponding reaction by the controller.
Preferably, the magazine 10 further includes: the negative pressure device (not shown in the figure) is arranged in the material storage shell 1 and is used for generating negative pressure for the material storage space; wherein, the storage shell 1 is also provided with a feeding end 202; the automatic material feeding system 100 further includes an open type powder storage container 201 disposed at one side of the powder storage mechanism 10 and communicated to the feeding end 202 through a feeding pipeline provided with a second control valve 24. Through setting up negative pressure device, take out the atmospheric pressure in the storage casing 1 to the outside, make the atmospheric pressure in the storage casing 1 be less than outside atmospheric pressure, make the material in the open-type powder storage container 201 of outside automatic get into in the storage casing 1 from feed end 202, realize automatic feed.
For example: the negative pressure device 7 is a fan 701 arranged above the inside of the storage shell 1, an air outlet of the fan 701 is connected with an air outlet 702 arranged outside the storage shell 1, a third control valve 703 is arranged on the air outlet 702, and air in the storage shell 1 enters from the air inlet 704 and is discharged from the air outlet 702 through opening of the fan 701 and the third control valve 703, so that negative pressure is formed.
Further, referring to fig. 1 and 2, the magazine 10 further includes: locate the vibration rabbling mechanism 8 in the storage casing 1, vibration rabbling mechanism 8 includes: the stirring motor 801 and the stirring shaft 804 connected with the stirring motor 801 are used for driving the stirring shaft 804 to stir the material in the material storage shell 1 through the stirring motor 801, and the material can be accelerated to fall into the conveying mechanism 20 from the material storage shell 1 in the feeding process; a plurality of filters 802 are arranged in the storage shell 1 and are positioned between the negative pressure device 7 and the feeding end 202, and the negative pressure device 7 and the feeding end 202 are separated in different accommodating spaces in the storage shell 1, so that when the negative pressure device 7 works, gas entering from the feeding end 202 can only pass through the filters 802 and then is discharged out of the storage shell 1 through the negative pressure device 7; specifically, when the negative pressure device 7 is turned on and the feeding end 202 feeds, the filter 802 can filter the materials lifted by the material storage shell 1, so as to prevent some materials from being sucked out of the material storage shell 1 under the suction action of the negative pressure device 7; simultaneously, the vibration stirring mechanism 8 further includes: vibrating motor 803 is installed in filter 802 upper end, can produce vibrations to filter 802, shakes off the material of filter 802 surface adhesion, prevents to block up filter 802, influences the filter effect.
Preferably, the automatic material feeding system 100 further comprises: the control terminal (not shown) is electrically connected to the plurality of sensors 37, the plurality of second control valves 24, the plurality of first control valves 26, the transport mechanism 20, and the negative pressure device. The automatic material feeding system is used for correspondingly controlling the corresponding second control valve 24, first control valve 26, conveying mechanism 20 and negative pressure device to perform corresponding actions according to the material height information fed back by the sensor 37, so as to realize the automatic material feeding process of the automatic material feeding system 100.
Example 3:
this embodiment is a further optimization scheme based on embodiment 2:
referring to fig. 8, an automatic material feeding control method includes:
step S1, respectively acquiring a first height information value H1 of a material storage surface of a material stored in a material storage mechanism in the material storage mechanism and a second height information value H2 of the material storage surface of the material stored in any one of at least two powder feeding mechanisms in the corresponding powder feeding mechanism;
step S2, determining the first height information value H1 and the plurality of second height information values H2 at the same time;
and step S3, according to the judgment of the first height information value H1 and the plurality of second height information values H2, the material storage mechanism and each powder feeding mechanism complete material feeding and feeding.
On the other hand, in step S2, it is determined that the plurality of second height information values H2 specifically are:
1) when any one second height information value H2 in the plurality of second height information values H2 is judged to be smaller than or equal to a preset first lower limit height value Y1, namely H2 is smaller than or equal to Y1, respectively generating at least one first control command; the first control instruction is used for controlling the corresponding second control valve and the corresponding first control valve to be in an open state;
2) when any one second height information value H2 in the plurality of second height information values H2 is judged to be larger than or equal to a preset first upper limit height value Y2, namely H2 is larger than or equal to Y2, respectively generating at least one second control command; the second control instruction is used for controlling the corresponding second control valve and the corresponding first control valve to be in a closed state;
3) when all the first control valves and all the second control valves are judged to be in the closed state, generating a third control instruction, and controlling the conveying mechanism to be in the stop working state;
4) when at least one first control valve and the corresponding second control valve are judged to be in the opening state, a seventh control instruction is generated to control the conveying mechanism to be in the working state;
on the other hand, in step S2, it is determined that the first height information value H1 specifically is:
1) when the first height information value H1 is judged to be between the preset warning height value X and the second lower limit height value Z1, namely X is more than H1 and more than Z1, judging whether the conveying mechanism stops working or not;
1.1) if the conveying mechanism does not stop working, generating a fifth control instruction; the fifth control instruction is used for controlling the negative pressure device to be in a stop working state and controlling the discharging end of the material storage mechanism to be in an opening state;
1.2) when the conveying mechanism stops working, generating a fourth control instruction; the fourth control instruction is used for controlling the negative pressure device to be in a working state and controlling the discharge end of the material storage mechanism to be in a closed state;
2) when the first height information value H1 is judged to be larger than or equal to a preset second upper limit height value Z2, namely H1 is larger than or equal to Z2, a fifth control command is generated; the fifth control instruction is used for controlling the negative pressure device to be in a stop working state and controlling the discharging end of the material storage mechanism to be in an opening state;
3) and when the first height information value H1 is judged to be less than or equal to the warning height value X, namely H1 is less than or equal to X, generating a fourth control instruction, controlling the negative pressure device to be in a working state and controlling the discharging end of the material storage mechanism to be in a closed state.
In step S1, acquiring the first height information value H1 is embodied as: the method comprises the steps that whether a material storage surface in a material storage mechanism is located at an upper limit position or a lower limit position or a warning position of the material storage mechanism is obtained through sensing of a sensor, and a corresponding second upper limit height value Z2, a second lower limit height Z1 and a warning value X are correspondingly generated; the obtained second height information value H2 is: the upper limit position or the lower limit position of the material in each powder feeding mechanism in the powder feeding cylinder in the powder feeding mechanism is obtained through the induction of a sensor, and a first upper limit height value Y2 and a first lower limit height value Y1 are correspondingly generated.
The specific implementation manner of judging that any one of the second height information values H2 is not more than Y1 in the step 2 is as follows: when the sensor obtains that the height of the stored materials in at least one powder feeding mechanism is lower than or equal to a lower limit arranged in a powder cylinder in the powder feeding mechanism, namely a first lower limit height value Y1, a corresponding sensing signal is generated and sent to the controller, and the controller controls the corresponding second control valve and the corresponding first control valve to be in an open state.
The specific implementation manner of judging that any one second height information value H2 is more than or equal to Y2 in the step 2 is as follows: the sensor acquires and judges the height of the stored material in each powder feeding mechanism in real time, when the height of the stored material in one powder feeding mechanism is larger than or equal to the upper limit arranged in the powder cylinder in the powder feeding mechanism, namely the height reaches a preset first upper limit value Y2, the sensor generates a corresponding sensing signal and sends the sensing signal to the controller, and the controller controls the second control valve connected with the conveying mechanism and the corresponding first control valve to be in a closed state, so that the material is stopped being transported into the powder cylinder in the powder feeding mechanism.
When all the second control valves and the first control valves are judged to be in the closed state in the step 2, a third control instruction is generated, and the specific implementation mode of controlling the conveying mechanism to be in the stop working state is as follows: when the sensor acquires that the height of the stored materials in the powder cylinder in the corresponding powder feeding mechanism is larger than or equal to the set upper limit, the situation that the materials in the powder cylinder in the corresponding powder feeding mechanism are in a full state is indicated, at the moment, the controller controls the second control valve and the corresponding first control valve, which are connected with the conveying mechanism, of the corresponding feeding mechanism to be in a closed state, and when the controller acquires that all the second control valves and the corresponding first control valves are in the closed state, the conveying mechanism is controlled to be in a stop working state.
And (3) generating a seventh control instruction to control the conveying mechanism to be in a working state when at least one first control valve and the corresponding second control valve are judged to be in an opening state in the step (2).
In step 2, the first altitude information value H1 is determined to be between the preset warning altitude value X and the second lower limit altitude value Z1, that is, X < H1 < Z1 is specifically implemented as follows: when the sensor obtains that the material storage height of the material storage mechanism is between a lower limit value and an alarm value preset for the material storage mechanism, at the moment, the controller can judge whether the conveying mechanism is in a working state, namely whether the conveying motor runs; the controller acquires information to display that the conveying motor is running, and controls the negative pressure device to be in a stop working state and the discharge end of the material storage mechanism to be in an opening state; the controller judges that the conveying motor stops rotating, and then the controller controls the discharging end of the material storage mechanism to be in a closed state; meanwhile, a negative pressure device in the material storage mechanism is controlled to be in a working state, so that negative pressure is generated in the material storage mechanism, external materials are sucked into the material storage mechanism, and the automatic feeding process of the material storage mechanism is completed.
In step 2, the specific implementation manner when the first height information value H1 is judged to be greater than or equal to the preset second upper limit height value Z2, that is, H1 is greater than or equal to Z2, is as follows: when the sensor acquires that the material storage height of the material storage mechanism is greater than or equal to a preset upper limit, namely a second upper limit height value Z2, the controller controls the negative pressure device to be in a work stop state so as to stop continuously feeding, and then the controller controls the discharge end of the material storage mechanism to be in an open state.
When the first height information value H1 is judged to be less than or equal to the warning height value X in step 2, that is, H1 is less than or equal to X, the specific implementation manner is as follows: when the sensor obtains that the material storage height of the material storage mechanism is located at a preset warning value X aiming at the material storage mechanism, the controller controls the discharge end of the material storage mechanism to be in a closed state; meanwhile, a negative pressure device in the material storage mechanism is controlled to be in a working state, so that negative pressure is generated in the material storage mechanism, external materials are sucked into the material storage mechanism, and the automatic feeding process of the material storage mechanism is completed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic material feeding system is characterized by comprising:
the material storage mechanism is provided with a material outlet end;
the conveying mechanism comprises a plurality of conveying units which are sequentially connected end to end, and is provided with a receiving end and a plurality of conveying ends which are sequentially arranged along the length direction of the receiving end, wherein the receiving end is connected with the discharging end;
the powder feeding mechanism comprises a plurality of powder feeding mechanisms, each powder feeding mechanism is provided with a feeding end, and each feeding end is correspondingly connected with one conveying end.
2. The material auto-feed system according to claim 1, wherein the conveying mechanism comprises:
a drive section;
the first conveying unit is sequentially provided with one material receiving end and one material conveying end along the conveying direction and is in transmission connection with the driving part;
the second conveying units are sequentially connected in a transmission manner along the conveying direction and are respectively provided with a material receiving end and a material conveying end;
wherein the driving part can drive the first conveying unit and the at least one second conveying unit to convey the materials.
3. The automatic material charging system according to claim 2, wherein a second conveying unit at a terminal end of said at least one second conveying unit is provided with two conveying ends arranged in sequence along the conveying direction, wherein the conveying end at a front side in the conveying direction is connected to the feeding end of one of the powder feeding mechanisms, and the conveying end at a rear side in the conveying direction is connected to a material receiving container.
4. The material automatic feeding system according to claim 2, wherein the first conveying unit and each of the second conveying units are identical in structure and each comprise:
the shell is of a hollow cylindrical structure;
the transmission assembly is rotatably arranged in the shell;
the shells of two adjacent conveying units are hermetically connected, and the transmission assemblies of the two adjacent conveying units are respectively in transmission connection; the transmission assembly of the first conveying unit is in transmission connection with the driving part.
5. The automatic material feeding system according to claim 1,
the storage mechanism comprises:
the material storage shell is internally provided with a material storage space, and one side close to the conveying mechanism is provided with a material discharge end communicated with the material storage space;
the first material monitoring positions are respectively arranged at different heights of the material storage shell;
the first air pressure balancing end is arranged at the position of the material storage shell, is higher than the plurality of first material monitoring positions and is respectively positioned at the height of the material storage shell;
each powder feeding mechanism respectively comprises:
the charging barrel is provided with a material accommodating space, and one side close to the conveying mechanism is provided with a feeding end communicated with the material accommodating space;
a plurality of second material monitoring bits respectively provided at different heights of the charging barrel;
the second air pressure balance end is arranged at the position of the material barrel, and is higher than the plurality of second material monitoring positions which are respectively positioned at the height of the material barrel;
a feeder connected to the cartridge.
6. The automatic material feeding system according to claim 5, wherein the conveying mechanism is further provided with a plurality of third air pressure balance ends, and the third air pressure balance ends are respectively arranged in one-to-one correspondence with the plurality of second air pressure balance ends and the first air pressure balance end; the automatic material feeding system further comprises:
the air pressure communicating pipes are respectively communicated with the first air pressure balancing end and one corresponding third air pressure balancing end, and each second air pressure balancing end and one corresponding third air pressure balancing end; and each air pressure communicating pipe is also provided with a first control valve.
7. The material automatic feeding system according to claim 6, further comprising:
a plurality of sensors provided in the plurality of first material monitoring positions and the plurality of second material monitoring positions, respectively;
and the second control valves are respectively connected between the discharge end and the receiving end, between the conveying end and the receiving container and between each conveying end and the corresponding feeding end.
8. The material automatic feeding system according to claim 7, wherein the storage mechanism further comprises: the negative pressure device is arranged in the material storage shell and used for generating negative pressure for the material storage space; wherein the storage shell is also provided with a feeding end; the automatic material feeding system further comprises:
and the open-type powder storage container is arranged on one side of the powder storage mechanism and communicated to the feeding end through a feeding pipeline provided with a second control valve.
9. The material automatic feeding system according to claim 8, further comprising:
and the control end is electrically connected with the plurality of sensors, the plurality of second control valves, the plurality of first control valves, the conveying mechanism and the negative pressure device.
10. An automatic material charging control method applied to the automatic material charging system according to any one of claims 1 to 9, characterized by comprising:
s1, respectively acquiring a first height information value H1 of a material storage surface of a material stored in a material storage mechanism in the material storage mechanism and a second height information value H2 of the material storage surface of the material stored in any one of at least two powder feeding mechanisms in the corresponding powder feeding mechanism;
s2, simultaneously determining the first height information value H1 and a plurality of second height information values H2 respectively;
and S3, according to the judgment of the first height information value H1 and the plurality of second height information values H2, the material storage mechanism and each powder feeding mechanism complete material feeding and feeding.
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Application publication date: 20210126 |