Feeding machine

Abstract

The invention relates to the technical field of powder feeding, and discloses a feeding machine which comprises a first barrel, a stirring part and a screen, the first barrel is provided with a containing cavity, the upper end and the lower end of the first barrel are provided with a first feeding port and a first discharging port respectively in the vertical direction, and the first feeding port and the first discharging port both communicate with the containing cavity; the stirring part is arranged in the containing cavity and located between the first feeding port and the second feeding port in the vertical direction, the screen is arranged at the first discharging port and provided with a plurality of first holes, the first holes penetrate through the screen in the vertical direction, each first hole is provided with an upper opening and a lower opening in the vertical direction, the size of the upper opening is larger than that of the lower opening, and the stirring part is located between the first feeding port and the second feeding port in the vertical direction. And the aperture psi of the first hole is more than or equal to 0.5 mm and less than or equal to 8mm, so that the screen prevents the powder from passing when the stirring part is static and allows the powder to pass when the stirring part moves. The technical problem that the efficiency and the precision of quantitative powder supply of the powder charging machine are low is solved.

Description

Technical Field

[0001] The present application relates to the technical field of powder feeding, and in particular to a feeding machine. Background Art

[0002] With the acceleration of industrialization, powdered objects are increasingly used in many industries, such as chemicals, food, medicine, building materials, etc. These industries have high requirements for the handling and transportation of powders. Usually, a powder feeder is used to quantitatively supply powders, and the powder feeder transmits the powder by vibration. However, in the related art, the efficiency and accuracy of the powder feeder for quantitative supply of powders are low. Summary of the invention

[0003] The present application provides a feeder, which solves the technical problem of low efficiency and accuracy in quantitatively supplying powder by a powder feeder, and achieves the technical effect of improving the accuracy of the feeder supply.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a feeder including a first barrel, a stirring part and a screen, the first barrel having a accommodating chamber, and along the vertical direction, the upper end and the lower end of the first barrel respectively have a first feed port and a first discharge port, the first feed port and the first discharge port are both connected to the accommodating chamber, the stirring part is arranged in the accommodating chamber, along the vertical direction, the stirring part is located between the first feed port and the first discharge port, the screen is arranged at the first discharge port, the screen has a plurality of first holes, along the vertical direction, the first hole passes through the screen, along the vertical direction, the first hole has an upper opening and a lower opening, the size of the upper opening is larger than the size of the lower opening, wherein the aperture of the first hole is ψ, and satisfies: 0.5mm≤ψ≤8mm, so that the screen prevents powder from passing through when the stirring part is stationary, and allows powder to pass through when the stirring part is moving.

[0005] The feeder proposed in the embodiment of the present application has an upper opening and a lower opening along the vertical direction, and the size of the upper opening is larger than the size of the lower opening, so that when the stirring part is static, more powder can be agglomerated and fall into the first hole, and when the stirring part moves, the powder can be more quickly discharged from the lower opening of the first hole to the first tube, thereby improving the operation efficiency of the feeder. The aperture of the first hole is ψ, and it satisfies: 0.5mm≤ψ≤8mm, so that the screen prevents the powder from passing through when the stirring part is static, and allows the powder to pass through when the stirring part moves, and the powder can be continuously and stably transported to the designated position, reducing the probability of powder being blocked and aggregated during the transportation process, improving the efficiency and accuracy of the feeder in quantitatively supplying materials, and reducing the probability of the feeder malfunctioning.

[0006] Optionally, the thickness of the sieve is t, satisfying: 0.1≤ψ / t≤16.

[0007] Setting the thickness of the screen to t and satisfying 0.1≤ψ / t≤16 can reduce the probability of powder clogging and aggregation during transportation, improve the efficiency and accuracy of the feeder's quantitative supply of materials, and reduce the probability of the feeder's failure.

[0008] Optionally, there are multiple first holes, and the distance between any two adjacent first holes is d, satisfying: 0.5mm≤d≤3mm.

[0009] The screen has multiple first holes, and the distance between any two adjacent first holes is d, which satisfies: 0.5mm≤d≤3mm, which can ensure that the powder is more uniform and stable during the quantitative supply process, reduce the probability of powder blockage and aggregation during the transportation process, improve the efficiency and accuracy of the quantitative supply of materials by the feeder, and reduce the probability of failure of the feeder.

[0010] Optionally, the thickness of the screen is t, satisfying: 0.1≤d / t≤6.

[0011] The thickness of the screen is t, which satisfies: 0.1≤d / t≤6, which reduces the probability of powder clogging and aggregation during transportation, improves the efficiency and accuracy of the feeder's quantitative supply of materials, and reduces the probability of the feeder's failure.

[0012] Optionally, the feeder further comprises a vibrator, which is disposed on the first cylinder and connected to the screen to selectively drive the screen to vibrate.

[0013] The vibrator is connected to the screen to selectively drive the screen to vibrate. When the first hole of the screen is blocked, the vibrator can be used to vibrate the screen to break up the powder blocked in the first hole, thereby clearing the first hole, reducing the probability of failure of the feeder and improving the operating efficiency of the feeder.

[0014] Optionally, there are multiple vibrators, including a first vibrator, a second vibrator, a third vibrator and a fourth vibrator. The first vibrator, the second vibrator, the third vibrator and the fourth vibrator are all connected to the outer periphery of the screen. Along the first direction, the first vibrator and the third vibrator are arranged opposite to each other, and along the second direction, the second vibrator and the fourth vibrator are arranged opposite to each other. The first direction and the second direction are perpendicular to the vertical direction.

[0015] Along the first direction, the first vibrator and the third vibrator are arranged opposite to each other, and along the second direction, the second vibrator and the fourth vibrator are arranged opposite to each other. The first direction, the second direction and the vertical direction are perpendicular to each other, so that multiple areas of the screen can be directly in contact with the vibrators and vibrated by the vibrators, thereby further expanding the range of vibration of the screen, further reducing the probability of blockage of the first hole, and improving the operating efficiency of the feeder.

[0016] Optionally, the plurality of vibrators further comprises a fifth vibrator connected to the central area of ​​the screen.

[0017] The fifth vibrator is connected to the central area of ​​the screen, which can further reduce the probability of clogging of the first hole and improve the operating efficiency of the feeder.

[0018] Optionally, the feeder further comprises a visual recognition device, which is communicatively connected to the vibrator, and is used to detect whether the first hole is blocked. The vibrator can selectively control the vibration of the vibrator according to data detected by the visual recognition device.

[0019] The vibrator can selectively control the vibration of the vibrator according to the data detected by the visual recognition device, which can improve the operating efficiency of the feeder and reduce the probability of failure of the feeder.

[0020] Optionally, the aperture size of the first hole gradually decreases from top to bottom.

[0021] The aperture size of the first hole is gradually reduced, and when the stirring part moves, the powder can be discharged from the first barrel from the lower opening of the first hole more quickly, thereby improving the operation efficiency of the feeder.

[0022] Optionally, a blocking piece is further provided on the screen, and the blocking piece is rotatably provided on the screen to block or open the first hole.

[0023] The blocking member can be rotatably arranged on the screen to block or open the first hole, which reduces the probability of powder flowing out of the first hole when the feeder is static, improves the stability and reliability of the feeder operation, and reduces the probability of failure of the feeder.

[0024] Optionally, a first blowing channel is further provided in the screen, the first blowing channel has a first blowing port, and the direction of the first blowing port is tangent to the inner wall of the first hole.

[0025] The direction of the first blowing port is tangent to the inner wall of the first hole, which can further reduce the probability of the first hole being blocked, reduce the probability of the feeder malfunctioning, and improve the stability and reliability of the feeder operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1A schematic diagram of the structure of a feeder is provided for one embodiment of the present application; Figure 2 A schematic diagram of the structure of a screen provided in one embodiment of the present application; Figure 3 The first blowing channel and the first hole of an embodiment of the present application are shown.

[0028] [Description of Reference Numerals] Feeder 100; first barrel 110; accommodating chamber 110S; first feed port 111; first discharge port 112; stirring portion 120; screen 130; first hole 131; upper opening 132; lower opening 133; first vibrator 141; second vibrator 142; third vibrator 143; fourth vibrator 144; visual recognition device 150; first air blowing channel 160; first air blowing port 161; driving motor 170; transmission member 180; first gear 181; second gear 182; first direction X; second direction Y; vertical direction Z. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0031] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0034] The term "multiple" as used in the present application refers to more than two (including two). Similarly, the term "multiple groups" refers to more than two groups (including two groups), and the term "multiple sheets" refers to more than two sheets (including two sheets).

[0035] With the acceleration of industrialization, powdered objects are used more and more widely in multiple industries, such as chemical, food, medicine, building materials, etc. These industries have high requirements for the processing and transportation of powders, and require equipment that can achieve automation, continuity, efficiency and precision.

[0036] Usually a powder feeder is used to supply powder in a quantitative manner. The powder feeder transmits the powder by vibration. The working principle of the powder feeder is mainly based on the vibration principle. The equipment is usually composed of a motor, a vibration head, a silo and other parts. The discharge port of the feeder is provided with a quantitative device. The quantitative device can measure the amount of powder discharged from the feeder, thereby enabling the powder to be supplied in a quantitative manner.

[0037] However, in the related art, the screen structure of the feeder is not set reasonably, and the efficiency and accuracy of the feeder in quantitatively supplying powder are low.

[0038] In view of this, the present application proposes a feeder, which includes a first barrel, a stirring part and a screen.

[0039] The first barrel has a accommodating cavity. Along the vertical direction, the upper end and the lower end of the first barrel respectively have a first feed port and a first discharge port, both of which are communicated with the accommodating cavity. The stirring part is arranged in the accommodating cavity. Along the vertical direction, the stirring part is located between the first feed port and the first discharge port. The screen is arranged at the first discharge port. The screen has a plurality of first holes. Along the vertical direction, the first holes penetrate the screen. Along the vertical direction, the first holes have an upper opening and a lower opening, and the size of the upper opening is larger than that of the lower opening. The aperture of the first hole is ψ, and satisfies: 0.5mm≤ψ≤8mm, so that the screen prevents powder from passing through when the stirring part is stationary, and allows powder to pass through when the stirring part moves.

[0040] In the above scheme, the aperture of the first hole is ψ, and satisfies: 0.5mm≤ψ≤8mm, so that the screen prevents the powder from passing through when the stirring part is stationary. In a natural state, the powder will be gathered together by the surface energy of the powder to form powder agglomerates. When the stirring part moves, the powder is allowed to pass through. In this way, when the feeder is not running, the powder will not flow out of the feeder. When the feeder is running, the powder can flow out from the first hole, thereby realizing quantitative control of the powder and improving the operating efficiency of the feeder.

[0041] For the convenience of description, the following embodiments are described by taking a feeder according to an embodiment of the present application as an example.

[0042] Please refer to Figures 1 to 3 In this embodiment, the feeder 100 includes a first barrel 110, a stirring part 120 and a screen 130. The first barrel 110 has a accommodating chamber 110S. Along the vertical direction Z, the upper end and the lower end of the first barrel 110 respectively have a first feed port 111 and a first discharge port 112. The first feed port 111 and the first discharge port 112 are both connected to the accommodating chamber 110S. The stirring part 120 is arranged in the accommodating chamber 110S. Along the vertical direction Z, the stirring part 120 is located between the first feed port 111 and the first discharge port 112, the screen 130 is arranged at the first discharge port 112, the screen 130 has a plurality of first holes 131, along the vertical direction Z, the first holes 131 penetrate the screen 130, wherein the aperture of the first holes 131 is ψ, and satisfies: 0.5mm≤ψ≤8mm, so that the screen 130 prevents the powder from passing through when the stirring part 120 is stationary, and allows the powder to pass through when the stirring part 120 is moving.

[0043] The first barrel 110 has a accommodating chamber 110S, and powder is used to be stored in the accommodating chamber 110S. The first feed port 111 of the first barrel 110 is arranged at the upper end of the first barrel 110, and the first discharge port 112 is arranged at the lower end of the first barrel 110, so that the powder enters the accommodating chamber 110S from the upper end, and then exits the first barrel 110 through the first discharge port 112 at the lower end. In this way, on the one hand, the gravity of the powder itself can be utilized to make the powder exit the first discharge port 112, thereby saving the energy consumption of the feeder 100 during the supply process.

[0044] The powder is located in the accommodating chamber 110S of the first barrel 110, so the stirring part 120 also needs to be arranged in the accommodating chamber 110S, that is, the stirring part 120 needs to be in direct contact with the powder to break up or apply pressure to the powder. The activity range of the powder in the first barrel 110 is between the first feed port 111 and the first discharge port 112. The stirring part 120 is located between the first feed port 111 and the first feed port 112, and can bring all the powder within the range of the first barrel 110 into the range of stirring or compacting.

[0045] The screen 130 is arranged at the first discharge port 112. For example, the screen 130 can be detachably connected to the first discharge port 112. On the one hand, when the screen 130 needs to be repaired or replaced, the screen 130 can be easily removed for repair or replacement, thereby improving the maintenance efficiency of the feeder 100. On the other hand, the screen 130 is detachably connected to the first discharge port 112, which means that the screen 130 with first holes 131 of different aperture sizes can be arranged on the feeder 100, thereby enabling the feeder 100 to be suitable for feeding different metal powders, thereby expanding the applicable scope of the feeder 100. The screen 130 has a plurality of first holes 131, and the plurality of first holes 131 can be evenly distributed on the screen 130. The plurality of first holes 131 can allow a plurality of powders to pass through, thereby improving the feeding efficiency of the feeder 100. Along the vertical direction Z, the first holes 131 penetrate the mesh 130 , that is, the first holes 131 allow the metal powder to pass through the first holes 131 of the mesh 130 .

[0046] Since the powder surface has surface tension, the powders will attract each other to form powder agglomerates. The aperture of the first hole 131 is ψ, and satisfies: 0.5mm≤ψ≤8mm, so that the screen 130 prevents the powder from passing through when the stirring part 120 is stationary. When the stirring part 120 is stationary, the powder particles are actually in a stationary state. For powders with very small volumes, such as powders with a diameter of nanometers, the surface energy of the powder will increase sharply at this time, and agglomeration will occur very easily. Therefore, in a stationary state, the powder agglomerates cannot pass through the first hole 131. That is to say, when the stirring part 120 is stationary, the powder will not flow out from the inside of the feeder 100. When the feeder 100 is not feeding, no additional operation is required, thereby improving the use efficiency of the feeder 100. When the stirring part 120 moves, the stirring part 120 will apply pressure to the powder or stir the powder to destroy the agglomeration between the powders and restore the powder to a single powder particle state. The maximum diameter of the powder is smaller than the aperture ψ of the first hole 131 so that the powder can pass through the first hole 131.

[0047] Specifically, the aperture of the first hole 131 is ψ, and satisfies: 0.5mm≤ψ≤8mm, so that the screen 130 prevents the powder from passing through when the stirring part 120 is stationary, and allows the powder to pass through when the stirring part 120 is moving. The powder can be continuously and stably transported to the designated position, reducing the probability of powder blockage and aggregation during transportation, improving the efficiency and accuracy of the quantitative supply of materials by the feeder 100, and reducing the probability of failure of the feeder 100.

[0048] Along the vertical direction Z, the first hole 131 has an upper opening 132 and a lower opening 133 , and the size of the upper opening 132 is larger than that of the lower opening 133 .

[0049] The first hole 131 has an upper opening 132 and a lower opening 133, the upper opening 132 faces the accommodating chamber 110S, and the lower opening 133 faces a direction away from the accommodating chamber 110S, and the powder flows from the upper opening 132 to the lower opening 133. The size of the upper opening 132 is larger than the size of the lower opening 133, so that when the stirring part 120 is static, more powder can be gathered and fall into the first hole 131, and when the stirring part 120 moves, the powder can be more quickly discharged from the first barrel 110 from the lower opening 133 of the first hole 131, thereby improving the operating efficiency of the feeder 100.

[0050] Moreover, the size of the upper opening 132 is larger than that of the lower opening 133, so that when the stirring part 120 is stationary, powders of unqualified quality cannot pass through the screen 130 due to the limitation of the aperture, thereby achieving preliminary screening of the powder particle size. When the stirring part 120 moves, the powder is stirred and pushed, and can pass through the lower opening 133 of the screen 130 more easily, but can only pass through when the powder particle size is less than or equal to the aperture of the lower opening 133 of the screen 130, thereby achieving precise control of the powder particle size, on the one hand, it can increase the passing speed of qualified powder, and on the other hand, it can screen unqualified powder and prevent unqualified powder from passing.

[0051] In some embodiments, the feeder 100 further includes a driving motor 170 and a transmission member 180. The driving motor can be arranged outside the first barrel 110, and the transmission member 180 can be arranged inside the first barrel 110. The stirring part 120 is connected to the driving motor 170 through the transmission member 180. The driving motor 170 drives the stirring part 120 to move through the transmission member 180. When the feeder 100 is running, the stirring part 120 applies pressure or stirring force to the powder to break the aggregation between the powders and make the powders agglomerate back to a single powder particle state, so that the powders can be discharged from the first discharge port 112 through the first hole 131, and the powders can be transported to a designated location.

[0052] In some embodiments, the transmission member 180 can be configured as a gear set, the gear set includes a first gear 181 and a second gear 182, the output shaft of the drive motor 170 is connected to the second gear 182, the second gear 182 is connected to the first gear 181, and the first gear 181 is connected to the stirring part 120, so that the drive motor 170 can drive the stirring part 120 to move. Gear transmission has the advantages of high transmission efficiency, compact structure, long service life, strong transmission capacity, accurate transmission ratio and wear resistance, and can reduce the probability of failure of the feeder 100.

[0053] The embodiments of the present application do not limit the specific types of transmission components. In some possible implementations, the drive motor 170 can not only drive the stirring part 120 to rotate through the transmission component 180, but the drive motor 170 can also drive the stirring part 120 to move in the vertical direction Z through the transmission component 180 to apply pressure to the powder and improve the operating efficiency of the feeder 100.

[0054] In some embodiments, the drive motor 170 can be set as a DC motor. The DC motor has the advantages of simple structure, easy control, high efficiency and large torque. It can enhance the cutting force of the stirring part 120 on the powder when the feeder 100 is running, thereby reducing the manufacturing cost of the feeder 100.

[0055] Please refer to Figures 1 to 3In this embodiment, the thickness of the screen 130 is t, satisfying: 0.1≤ψ / t≤16.

[0056] Setting the thickness of the screen 130 to t and satisfying 0.1≤ψ / t≤16 can reduce the probability of powder being blocked and aggregated during transportation, improve the efficiency and accuracy of the quantitative feeding of the feeder 100, and reduce the probability of failure of the feeder 100. Moreover, setting the thickness of the screen 130 to t and satisfying 0.1≤ψ / t≤16 can make the structure of the screen 130 more reasonable, reduce the risk of stress concentration, and increase the service life of the screen 130. When the value of ψ / t is within this range, the screen 130 can maintain sufficient strength to resist the impact force of the stirring part 120 when the powder flows, and can ensure that the powder particles are subjected to appropriate resistance when passing through the sieve holes, thereby achieving efficient screening. An overly thick screen 130 may lead to low screening efficiency, while an overly thin screen 130 may be damaged due to insufficient strength.

[0057] Please refer to Figures 1 to 3 In this embodiment, there are multiple first holes 131, and the distance between any two adjacent first holes 131 is d, satisfying: 0.5mm≤d≤3mm.

[0058] The screen 130 has a plurality of first holes 131, and the plurality of first holes 131 can be evenly distributed on the screen 130. The distance between any two adjacent first holes 131 is d, which means that the distance between the center of the two adjacent first holes 131 and the first hole 131 is d, and d needs to satisfy: 0.5mm≤d≤3mm, which can ensure that the powder is more uniform and stable during the quantitative supply process, reduce the probability of powder blockage and aggregation during the transportation process, improve the efficiency and accuracy of the quantitative supply of materials by the feeder 100, and reduce the probability of failure of the feeder 100.

[0059] Reasonable spacing design of the first holes 131 can ensure that the powder is evenly distributed when passing through the screen 130, avoiding local accumulation or excessive sparseness, thereby improving the overall screening efficiency. The distance between any two or more first holes 131 is d, which satisfies: 0.5mm≤d≤3mm. The powder particles can more effectively utilize the surface area of ​​the screen 130 to achieve efficient screening. The design of the spacing between the first holes 131 also takes into account the structural strength of the screen 130. Too dense spacing between the first holes 131 may reduce the strength of the screen 130. Designing d within the range of 0.5mm-3mm can balance the screening efficiency and structural strength of the screen 130. Please refer to Figures 1 to 3 In this embodiment, the thickness of the screen 130 is t, satisfying: 0.1≤d / t≤6.

[0060] The thickness of the screen 130 is t, which satisfies: 0.1≤d / t≤6, thereby reducing the probability of the powder being blocked and aggregated during the conveying process, improving the efficiency and accuracy of the quantitative feeding of the feeder 100, and reducing the probability of the feeder 100 failing. Moreover, the thickness of the screen 130 is t, which satisfies: 0.1≤d / t≤6, so that the thickness of the screen 130 is set within a reasonable range, avoiding the thickness being too large, which results in a longer distance for the powder to pass through the screen 130, and avoiding the thickness being too small, which results in the screen 130 being too thin, which results in the screen 130 being easily damaged.

[0061] Please refer to Figures 1 to 3 In this embodiment, the feeder 100 further includes a vibrator, which is disposed on the first barrel 110 and connected to the screen 130 to selectively drive the screen 130 to vibrate.

[0062] The vibrator is disposed in the first barrel 110, and the vibrator can be disposed in the accommodating chamber 110S. The vibrator is connected to the screen 130. When the stirring part 120 moves, the powder is allowed to pass through the first hole 131 and out of the first barrel 110. At this time, the vibrator can cooperate with the stirring part 120 to speed up the rhythm of the powder passing through the first hole 131, increase the running speed of the feeder 100, and reduce the probability of the powder being blocked in the first hole 131. Even if the first hole 131 of the screen 130 is blocked, the vibrator can be used to vibrate the screen 130 to break up the powder blocked in the first hole 131, thereby playing a role in clearing the first hole 131, reducing the probability of failure of the feeder 100 and improving the running efficiency of the feeder 100.

[0063] Please refer to Figures 1 to 3 In the present embodiment, there are multiple vibrators, including a first vibrator 141, a second vibrator 142, a third vibrator 143 and a fourth vibrator 144. The first vibrator 141, the second vibrator 142, the third vibrator 143 and the fourth vibrator 144 are all connected to the outer periphery of the screen 130. Along the first direction X, the first vibrator 141 and the third vibrator 143 are arranged opposite to each other. Along the second direction Y, the second vibrator 142 and the fourth vibrator 144 are arranged opposite to each other. The first direction X, the second direction Y and the vertical direction Z are perpendicular to each other.

[0064] The multiple vibrators work together to increase the vibration amplitude and vibration frequency of the screen 130, further reducing the probability of the first hole 131 being blocked. Even if the first hole 131 is blocked, the multiple vibrators can be used to vibrate multiple positions of the screen 130 to break up the powder agglomeration, so that the powder passes through the first hole 131 out of the first barrel 110. The first vibrator 141, the second vibrator 142, the third vibrator 143 and the fourth vibrator 144 are all connected to the outer periphery of the screen 130, that is, the first vibrator 141, the second vibrator 142, the third vibrator 143 and the fourth vibrator 144 all vibrate the outer periphery of the screen 130 with the first vibrator 141, the second vibrator 142, the third vibrator 143 and the fourth vibrator 144.

[0065] Along the first direction X, the first vibrator 141 and the third vibrator 143 are arranged opposite to each other, and along the second direction Y, the second vibrator 142 and the fourth vibrator 144 are arranged opposite to each other. The first direction X, the second direction Y and the vertical direction Z are perpendicular to each other, so that the first vibrator 141, the second vibrator 142, the third vibrator 143 and the fourth vibrator 144 can uniformly vibrate the screen 130. On the one hand, the outer periphery of the screen 130 can be uniformly stressed, reducing the risk of fatigue fracture caused by stress concentration due to single-point stress on the screen 130, thereby increasing the service life of the feeder 100. On the other hand, multiple areas of the screen 130 can be directly in contact with the vibrator and vibrated by the vibrator, thereby further expanding the range of vibration of the screen 130, further reducing the probability of blockage of the first hole 131, and improving the operating efficiency of the feeder 100.

[0066] Please refer to Figures 1 to 3 In this embodiment, the plurality of vibrators further include a fifth vibrator, which is connected to the central area of ​​the screen 130 .

[0067] The fifth vibrator is connected to the central area of ​​the screen 130, and can vibrate the central area of ​​the screen 130, thereby vibrating the central area of ​​the screen 130, thereby breaking up the powder in the central area, further expanding the vibration range of the screen 130, further reducing the probability of blockage of the first hole 131, and improving the operating efficiency of the feeder 100.

[0068] Please refer to Figures 1 to 3 In this embodiment, the feeder 100 also includes a visual recognition device 150, which is communicatively connected to the vibrator. The visual recognition device 150 is used to detect whether the first hole 131 is blocked. The vibrator can selectively control the vibration of the vibrator according to the data detected by the visual recognition device 150.

[0069] The visual recognition device can recognize whether the first hole 131 is blocked, and then send the monitored data to the vibrator. If the first hole 131 is blocked, the vibrator vibrates, and if the first hole 131 is not blocked, the vibrator does not need to operate. This can improve the operating efficiency of the feeder 100 and reduce the probability of failure of the feeder 100.

[0070] Exemplarily, the visual recognition device 150 can also identify the blocked area of ​​the first hole 131 on the screen 130, and then send the information of the blocked area to the vibrator closest to the blocked area. The vibrator closest to the blocked area vibrates the screen 130 to solve the blockage problem of the screen 130. The visual recognition device 150 can not only identify the blocked area on the screen 130, but also identify the blockage degree of the first hole 131 in the blocked area, wherein the blockage degree is related to the magnitude of the force of the powder blocked in the first hole 131 on the inner wall of the first hole 131. After identifying the blockage degree of the blocked area, the visual recognition device 150 can send the detected data to the corresponding vibrator, and the vibrator can determine the frequency and amplitude of the vibration according to the corresponding blockage degree.

[0071] Please refer to Figures 1 to 3 , along the direction from top to bottom, the aperture size of the first hole 131 gradually decreases.

[0072] From top to bottom, the aperture size of the first hole 131 gradually decreases, so that when the stirring part 120 is static, more powder agglomerates can fall into the first hole 131. When the stirring part 120 moves, the powder can flow out of the first barrel 110 from the lower opening 133 of the first hole 131 faster, thereby improving the operating efficiency of the feeder 100.

[0073] The gradually decreasing aperture size helps to reduce the wear of the screen 130 , and larger powder particles are screened out when passing through the larger apertures without generating excessive friction and collision with the screen 130 , thereby extending the service life of the screen 130 .

[0074] In addition, along the direction from top to bottom, the aperture size of the first hole 131 gradually decreases, which helps to improve the distribution of the powder on the screen 130. Larger powder particles are screened out when passing through larger apertures, while smaller powder particles continue to pass downward through smaller apertures, which helps to make the powder more evenly distributed on the screen 130.

[0075] Please refer to Figures 1 to 3 The screen 130 is also provided with a blocking piece, and the screen 130 is also provided with a blocking piece, which is rotatably provided on the screen 130 to block or open the first hole 131.

[0076] The blocking piece can be set on the surface (upper surface or lower surface) of the screen 130. When the feeder 100 is running to supply powder, the blocking piece does not block the screen 130. When the feeding task of the feeder 100 is completed, the blocking piece blocks the screen 130. This reduces the probability of powder flowing out of the first hole 131 when the feeder 100 is static, improves the stability and reliability of the feeder 100, and reduces the probability of failure of the feeder 100.

[0077] Please refer to Figures 1 to 3 In this embodiment, a first blowing channel 160 is further provided in the screen 130 . The first blowing channel 160 has a first blowing port 161 . The direction of the first blowing port 161 is tangent to the inner wall of the first hole 131 .

[0078] The first blowing channel 160 is arranged inside the screen 130. The first blowing channel 160 has a first blowing port 161. The gas is discharged from the first blowing channel 160 from the first blowing port 161. The direction of the first blowing port 161 is tangent to the inner wall of the first hole 131. That is, the gas is blown from the first blow pipe channel to the first hole 131. When the first hole 131 is blocked, the first blowing channel 160 is used to blow air to the first hole 131, which can further reduce the probability of the first hole 131 being blocked, reduce the probability of the feeder 100 malfunctioning, and improve the stability and reliability of the feeder 100. According to the degree of blockage of the first hole 131, the size of the airflow can be adjusted. For example, when the blockage degree of the powder in the first hole 131 is large, the airflow increases. When the blockage degree of the powder in the first hole 131 is small, the airflow can be appropriately reduced.

[0079] In some embodiments, the first blowing channel 160 also has a telescopic tube, which is connected to the first blowing port 161. The air flow exits the first blowing port 161 from the telescopic tube. The length of the telescopic tube is adjustable, so that the position of the first blowing port 161 can be adjusted, thereby expanding the blowing range of the first blowing channel 160, reducing the probability of blockage of the first hole 131, and improving the feeding efficiency of the feeder 100.

[0080] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0081] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0082] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0083] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A feeder for feeding powder, characterized in that: include: A first barrel has a containing cavity, and along the vertical direction, the upper end and the lower end of the first barrel respectively have a first feed port and a first discharge port, and the first feed port and the first discharge port are both connected to the containing cavity; A stirring part is arranged in the accommodating cavity, and along the vertical direction, the stirring part is located between the first feed port and the first discharge port; A screen is arranged at the first discharge port, the screen has a plurality of first holes, the first holes penetrate the screen along the vertical direction, the first holes have an upper opening and a lower opening along the vertical direction, and the size of the upper opening is larger than the size of the lower opening; The aperture of the first hole is ψ, and satisfies: 0.5 mm ≤ ψ ≤ 8 mm, so that the screen prevents powder from passing through when the stirring part is stationary, and allows powder to pass through when the stirring part is moving.

2. The charging machine according to claim 1, characterized in that The thickness of the sieve is t, satisfying: 0.1≤ψ / t≤16.

3. The charging machine according to claim 1, characterized in that: There are a plurality of the first holes, and a distance d between any two adjacent first holes satisfies: 0.5 mm ≤ d ≤ 3 mm.

4. The charging machine according to claim 3, characterized in that: The thickness of the sieve is t, satisfying: 0.1≤d / t≤6.

5. The charging machine according to claim 1, characterized in that: The feeder further includes: a vibrator, which is disposed on the first cylinder and connected to the screen to selectively drive the screen to vibrate.

6. The charging machine according to claim 5, characterized in that: There are multiple vibrators, including a first vibrator, a second vibrator, a third vibrator and a fourth vibrator, and the first vibrator, the second vibrator, the third vibrator and the fourth vibrator are all connected to the outer periphery of the screen; Along the first direction, the first vibrator is disposed opposite to the third vibrator, and along the second direction, the second vibrator is disposed opposite to the fourth vibrator. The first direction and the second direction are perpendicular to the vertical direction in pairs.

7. The charging machine according to claim 6, characterized in that The plurality of vibrators further includes a fifth vibrator connected to a central area of ​​the screen.

8. The charging machine according to any one of claims 5 to 7, characterized in that: The feeder further comprises a visual recognition device, wherein the visual recognition device is communicatively connected to the vibrator; The visual recognition device is used to detect whether the first hole is blocked, and the vibrator can be selectively controlled to vibrate according to data detected by the visual recognition device.

9. The charging machine according to claim 1, characterized in that: From top to bottom, the aperture size of the first hole gradually decreases.

10. The charging machine according to claim 1, characterized in that: The screen is also provided with a blocking piece, which is rotatably provided on the screen to block or open the first hole.

11. The charging machine according to claim 9, characterized in that A first air blowing channel is also provided in the screen. The first air blowing channel has a first air blowing port. The first air blowing port is tangent to the inner wall of the first hole.

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