Powder conveying system

Abstract

The utility model provides a powder conveying system which comprises a funnel device, a powder conveying device, a powder conveying device, a powder conveying device, a powder conveying device, a powder conveying device and a powder conveying device, and the funnel device comprises a receiving opening and a leakage opening; the first conveying equipment is arranged below the funnel equipment and has a first conveying direction, and the to-be-conveyed powder falls onto the first conveying equipment from the leakage opening under the action of gravity and moves in the first conveying direction; the second conveying equipment is arranged below the first conveying equipment and has a second conveying direction, the powder to be conveyed falls onto the second conveying equipment when moving to the tail end of the first conveying equipment and moves in the second conveying direction, and the first conveying direction and the second conveying direction are not located on the same plane; and the inversion equipment is arranged at the tail end, in the second conveying direction, of the second conveying equipment, receives the to-be-conveyed powder and is provided with an inversion opening, and the inversion opening faces downwards, so that the to-be-conveyed powder falls out of the inversion opening. After the technical scheme is adopted, different powder raw materials can be quickly weighed, transported and packaged.

Description

Technical Field

[0001] The utility model relates to the field of raw material screening, in particular to a powder transportation system. Background Art

[0002] At present, a large number of engineering buildings use three building materials, namely concrete, wet-mixed mortar and stabilized soil. These materials are also the main construction materials in engineering construction at home and abroad. Basically, each construction project requires these three materials. At present, in the actual production process of the above three materials, they are often produced through their respective independent production systems. Concrete is a mixture of sand, stone, cement, water and additives in a certain proportion; stabilized soil is a mixture of sand, gravel, lime, cement, water, etc. in a certain proportion; wet-mixed mortar is a mixture of fine sand, water, cement and additives in a certain proportion. When more raw materials are needed, raw materials meeting the quality requirements and mesh requirements need to be prepared. Therefore, it is necessary to standardize the weighing and mixing of the combination of each raw material.

[0003] At present, the method of manually weighing each raw material is usually adopted, and then it is sealed in a packaging bag. In this way, for the weighing of each raw material, high requirements are needed, manual weighing is required, and the efficiency is low. Moreover, after weighing, different raw materials need to be transported into the same packaging bag, which will also reduce the overall working efficiency.

[0004] Therefore, a system that can complete weighing, transportation and mixing simultaneously is needed to improve the efficiency of powder packaging. Summary of the Invention

[0005] In order to overcome the above technical defects, the purpose of the utility model is to provide a powder transportation system, which can quickly realize the weighing, transportation and packaging of different powder raw materials.

[0006] The utility model discloses a powder transportation system, comprising:

[0007] At least one funnel device, including a receiving port and a discharging port. The receiving port is in an open shape for receiving the powder to be transported;

[0008] At least one first transportation device, each first transportation device is arranged below a funnel device and has a first transportation direction. The powder to be transported falls onto the first transportation device due to gravity at the discharging port and moves along the first transportation direction;

[0009] A second transportation device, arranged below all the first transportation devices and having a second transportation direction. When the powder to be transported moves to the end of the first transportation device, it falls onto the second transportation device due to gravity and moves along the second transportation direction, wherein the first transportation direction and the second transportation direction are not in the same plane;

[0010] The inversion device is arranged at the end of the second transportation device along the second transportation direction, receives all the powder materials to be transported, and the inversion device has an inversion opening facing downward, so that the powder materials to be transported fall out from the inversion opening.

[0011] Preferably, the first transportation device is a first conveyor belt, and the first conveyor belt is basically horizontally arranged;

[0012] The powder material transportation system further includes:

[0013] The first valve assembly is arranged at the end of the first conveyor belt along the first transportation direction and includes:

[0014] The first valve housing forms the outer contour of the first valve assembly;

[0015] The first valve is connected to the first valve housing and is located at the end of the first conveyor belt along the first transportation direction;

[0016] The first pneumatic rod is fixedly connected to the first valve assembly at one end and is connected to the first valve at the other end, controlling the opening or closing of the first valve, so that the space inside the first valve housing is communicated with or separated from the external space.

[0017] Preferably, the powder material transportation system further includes:

[0018] The material guiding device is arranged below the funnel device and at the starting end of the first conveyor belt along the first transportation direction, is connected to the leakage outlet of the funnel device, receives the powder materials to be transported and guides them onto the first conveyor belt.

[0019] Preferably, the material guiding device includes:

[0020] The material guiding housing forms the outer contour of the material guiding device and has a discharge port along the first transportation direction;

[0021] The flow limiting valve is opened at the discharge port. The flow limiting valve includes a flow limiting door and a limiting plate. The flow limiting door closes part of the discharge port, and the limiting plate is connected to the flow limiting door and extends outward;

[0022] The screw component includes a screw and a nut. The screw penetrates the material guiding housing and the limiting plate, and the nut is sleeved outside the screw and is located on the side of the limiting plate away from the material guiding housing. When the nut rotates, the position of the limiting plate is adjusted up and down to adjust the closing size of the flow limiting door for the discharge port.

[0023] Preferably, the first transportation device is a screw device, and the screw device includes:

[0024] The screw housing is provided with a guiding inlet and a guiding outlet. The guiding inlet is communicated with the leakage outlet and receives the powder materials to be transported;

[0025] The screw is enclosed in the screw housing and rotates to transport the powder materials to be transported entering the screw housing to the guiding outlet.

[0026] Preferably, it further includes:

[0027] A weighing device, disposed between the first transportation device and the second transportation device, the weighing device includes:

[0028] A powder bin, facing the end of the first transportation device, receiving the powder to be transported, and the powder bin has a transmission port, and the transmission port faces the second transportation device;

[0029] A sealing plate, hinged on the powder bin and rotatable around the transmission port pivotally;

[0030] A second pneumatic rod, one end fixed on the powder bin and the other end fixed on the sealing plate;

[0031] An electromagnetic force weighing sensor, connected to the second pneumatic rod, controlling the second pneumatic rod to drive the sealing plate to control the conduction or separation of the transmission port from the external space.

[0032] Preferably, at least one sieve is provided in the cavity of the funnel device, and the sieve spans the cavity of the funnel device along the radial direction of the funnel device;

[0033] The powder transportation system further includes:

[0034] An air blowing device, providing air flow to any one or more of the funnel device, the first transportation device, the second transportation device or the upending device;

[0035] An air vibration device, attached to the outside of any funnel device, controlling the vibration of the funnel device.

[0036] Preferably, the powder transportation system further includes:

[0037] A packaging device, disposed beside the upending device, packaging the package receiving the powder to be transported;

[0038] At least one sealing belt is provided at both side parts of the conveyor belt of the second transportation device to isolate the transportation space of the conveyor belt from the external space;

[0039] At least one convex element is provided on the conveyor belt of the second transportation device, the convex element is in a broken line shape, and the concave part of the convex element faces the second transportation direction.

[0040] Preferably, the powder transportation system further includes:

[0041] A frame body, disposed outside the funnel device, the first transportation device, the second transportation device and the upending device;

[0042] A cover body, covering the frame body, and the cover body is provided with at least one opening, and each opening faces the receiving port;

[0043] The operating platform is connected to the frame body. The operating platform includes a staircase element and a platform, and the platform is arranged on the opposite side of the second transportation device.

[0044] Preferably, it further includes:

[0045] A box body, the first transportation device is arranged inside the box body. The box body includes a cover plate that seals the upper part of the box body, so that the upper part of the box body is isolated from the external space.

[0046] After adopting the above technical solution, compared with the prior art, it has the following beneficial effects:

[0047] 1. The weighing, transportation and packaging of powder materials can be completed with simple operations, greatly saving labor.

[0048] 2. The accuracy of the weighing result is sufficiently guaranteed, which is very helpful for improving the product quality.

[0049] 3. The transportation process is fast and simple, improving the efficiency of the entire packaging process. Description of the Drawings

[0050] Figure 1 It is a schematic structural diagram of the powder material transportation system in a preferred embodiment of the present utility model;

[0051] Figure 2 It is a side view of the powder material transportation system in a preferred embodiment of the present utility model;

[0052] Figure 3 It is a top view of the powder material transportation system in a preferred embodiment of the present utility model;

[0053] Figure 4 It is a schematic structural diagram of the first transportation device being a screw device in a preferred embodiment of the present utility model;

[0054] Figure 5 It is a front view of the first transportation device being a screw device in a preferred embodiment of the present utility model;

[0055] Figure 6 It is a schematic structural diagram of the first transportation device being a first conveyor belt in a preferred embodiment of the present utility model;

[0056] Figure 7 It is a front view of the first transportation device being a first conveyor belt in a preferred embodiment of the present utility model.

[0057] Reference Signs:

[0058] 100 - Powder material transportation system;

[0059] 110 - Hopper device, 111 - Receiving port, 112 - Discharge port;

[0060] 120 - First conveyor belt;

[0061] 120’ - Screw device, 121 - Screw housing, 122 - Screw;

[0062] 130 - Second transportation equipment,

[0063] 140 - Inversion device, 141 - Inversion opening;

[0064] 150 - First valve assembly, 151 - First valve housing, 152 - First valve, 153 - First pneumatic rod;

[0065] 160 - Material guiding equipment, 161 - Material guiding housing, 162 - Flow limiting valve, 163 - Screw component;

[0066] 170 - Weighing equipment, 171 - Powder bin, 172 - Sealing plate, 173 - Second pneumatic rod, 174 - Electromagnetic force weighing sensor;

[0067] 180 - Frame;

[0068] 190 - Operating platform. Detailed implementation manners

[0069] The advantages of the present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0070] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0071] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms of "a", "the" and "said" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0072] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to a determination".

[0073] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0074] In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a mechanical connection or an electrical connection, or it may be the communication inside two elements. It may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms may be understood according to specific circumstances.

[0075] In the subsequent description, the use of suffixes such as "module", "component", or "unit" to represent elements is only for the convenience of describing the present utility model, and it has no specific meaning in itself. Therefore, "module" and "component" can be used interchangeably.

[0076] Refer to Figures 1-3 , which shows the structure of the powder transportation system 100 in a preferred embodiment of the present utility model. In this embodiment, the powder transportation system 100 includes:

[0077] - Hopper device 110

[0078] The number of hopper devices 110 is at least one. Each hopper device 110 includes a receiving port 111 and a discharging port 112. The receiving port 111 is in an open shape and communicates with the external space. When the user needs to use it, the powder raw material (for example, in a bag, regardless of the amount of powder required) can be held by hand. After the powder raw material is opened, the powder is introduced through the receiving port 111 so that the powder to be transported enters the interior of the hopper device 110.

[0079] - First transportation device

[0080] The number of the first transportation devices is at least one, and the first first transportation device is arranged below the hopper device 110. When the hopper device 110 receives the powder to be transported, the powder to be transported will slide downward along the inside of the hopper device 110 until the leakage outlet 112. The position of the first transportation device can be directly below the leakage outlet 112 or directly communicated with the leakage outlet 112. Then, the powder to be transported continues to fall through the leakage outlet 112 onto the first transportation device. After the first transportation device is powered on, it will have a first transportation direction. For example, the first transportation device is various types of conveyor belts, screws 122, etc., and its conveying direction and transportation direction are the first transportation direction. After the powder to be transported falls onto the first transportation device, it will be transported by the first transportation device along the first transportation direction, resulting in a change in position.

[0081] - The second transportation device 130

[0082] The second transportation device 130 can be one or more (one is preferred). The hopper device 110 and the first transportation device together form a transportation module. To cooperate with each transportation module, the second transportation device 130 is arranged below all the first transportation devices. The second transportation device 130 can also be various types of conveyor belts, screws 122, etc., and its conveying direction and transportation direction are the second transportation direction. When the powder to be transported is conveyed by the first transportation device and reaches the end of the first transportation device, it will fall again under the influence of gravity, so as to fall onto the second transportation device 130, and the powder to be transported is transported along the second transportation direction.

[0083] When configuring the second transportation device 130, if the first transportation direction and the second transportation direction are not in the same plane, the conveying direction of the powder to be transported can be diverse. On the other hand, it has stronger adaptability to the smaller production workshop environment.

[0084] - The overturning device 140

[0085] The overturning device 140 can also be one or more (one is preferred), and it is arranged at the end of the second transportation device 130 along the second transportation direction. When all the powder to be transported is conveyed to the end of the second transportation device 130 along the second direction, it will fall again under the influence of gravity until it falls below the overturning device 140. Specifically, the overturning device 140 has an overturning port 141, and its inside is in a through state. When the powder to be transported enters the overturning device 140, it will penetrate the entire overturning device 140 and finally fall out from the overturning port 141. Then, if a packaging bag can be wound in a closed manner at the overturning port 141, the powder to be transported will enter the packaging bag, completing the transportation from the raw material bag to the packaging bag.

[0086] With the above configuration, in the entire powder transportation system 100, when the operator finishes importing the powder to be transported into the hopper device 110, simply starting the powder transportation system 100 on the operation console 190 can complete the transportation from the raw material bag to the packaging bag. There is no need to manually pour the raw materials into the packaging bag, saving a large amount of labor.

[0087] Embodiment 1

[0088] Refer to Figure 6 and Figure 7 , in this embodiment, the first transportation device is selected as the first conveyor belt 120, and the first conveyor belt 120 is arranged substantially horizontally at the leakage outlet 112.

[0089] To control the transportation volume of the powder to be transported. The powder transportation system 100 further includes:

[0090] - The first valve assembly 150

[0091] The first valve assembly 150 is arranged at the end of the first conveyor belt 120 along the first transportation direction and can control the transportation and stopping of the powder to be transported. More specifically, in this embodiment, the first valve assembly 150 includes:

[0092] - The first valve housing 151

[0093] The first valve housing 151 forms the outer contour of the first valve assembly 150. When the powder to be transported moves out from the leakage outlet 112, it will enter the first conveyor belt 120 through the first valve housing 151.

[0094] - The first valve 152

[0095] On the end face of the first valve housing 151 along the first transportation direction, there is a first valve 152, or the first valve 152 directly forms the end face of the first valve housing 151 along the first transportation direction. It is connected to the first valve housing 151 and controls the height of the space through which the powder to be transported can pass along the first transportation direction. It can be understood that when the transmission speed of the first conveyor belt remains unchanged, the lower the height, the lower the flow rate of the powder to be transported. The first valve 152 can be arranged at the end of the first conveyor belt 120 along the first transportation direction. Then, the powder to be transported not restricted by the first valve 152 will directly fall onto the second transportation device 130, and the powder to be transported restricted by the first valve 152 will remain on the first conveyor belt 120.

[0096] And it can be understood that when the first conveyor belt 120 stops conveying, in order to control the quality of the powder to be transported falling onto the second transportation device 130, the first valve 152 will also act as a switch to hold the powder to be transported.

[0097] - The first pneumatic rod 153

[0098] One end of the first pneumatic rod 153 is fixedly connected to the first valve housing 151, and the other end is connected to the first valve 152. Thus, driving the first pneumatic rod 153 will control the open or closed state of the first valve 152, thereby further controlling the communication or separation between the space inside the first valve housing 151 and the external space. When the space inside the first valve housing 151 communicates with the external space, the first conveyor belt will transport the powder to be transported and drop it onto the second transportation device 130; when the space inside the first valve housing 151 is separated from the external space, regardless of whether the first conveyor belt is working or stationary, the powder to be transported will be restricted inside the first valve housing 151, thereby controlling the quality of the powder finally packaged in the packaging bag.

[0099] Furthermore, the powder transportation system 100 further includes a material guiding device 160, which is arranged below the funnel device 110, that is, between the leakage outlet 112 of the funnel device 110 and the first conveyor belt 120, and is used to guide the powder to be transported into the first conveyor belt 120 without omission. Therefore, the material guiding device 160 is located at the starting end of the first conveyor belt 120 along the first transportation direction, opposite to the first valve assembly 150, but can communicate with the first valve assembly 150 and be isolated from the outside. The setting of the material guiding device 160 is used, on the one hand, to form a transportation path for guiding the movement of the powder to be transported, and on the other hand, it can be used as the first device for controlling the transportation flow rate of the powder to be transported. When the operator pours too much powder to be transported, the amount of the powder to be transported can be controlled on the side of the material guiding device 160, and at the same time, it can also prevent the situation that too much powder to be transported accidentally falls onto the second transportation device 130 after weighing.

[0100] Further preferably, the material guiding device 160 includes:

[0101] - A material guiding housing 161

[0102] The material guiding housing 161 forms the outer contour of the material guiding device 160 and has a discharge port along the first transportation direction. The material guiding housing 161 can communicate with the leakage outlet 112 to receive the powder to be transported, and the powder to be transported moves inside the material guiding housing 161 (the moving mode can be that there is a certain space inside the material guiding housing 161, and the bottom is formed by the first conveyor belt 120, that is, the material guiding housing 161 covers the first conveyor belt 120, and the powder to be transported is still transported by the first conveyor belt 120 and is not restricted by the material guiding housing 161).

[0103] - A flow limiting valve 162

[0104] The flow-limiting valve 162 is arranged at the discharge port and includes a flow-limiting door and a limiting plate. The flow-limiting door is arranged at the discharge port, similar to a garage door closing part of the discharge port. The limiting plate is connected to the flow-limiting door and extends outwards. When the limiting plate is displaced, it will drive the flow-limiting door to move up and down, thereby adjusting the size of the aperture for closing the discharge port.

[0105] - Screw assembly 163

[0106] The screw assembly 163 includes a screw and a nut. The screw and the nut can be arranged basically in the vertical direction, and the screw penetrates the material guiding housing 161 and the limiting plate, while the nut is sleeved outside the screw and is located on the side of the limiting plate away from the material guiding housing 161. When the nut is gradually rotated upwards, it will contact the side of the limiting plate away from the material guiding housing 161, and then when rotated further upwards, it will drive the limiting plate to move upwards together. On the contrary, if it is necessary to adjust the limiting plate downwards, the nut can be rotated downwards and the limiting plate can be held and moved downwards. With this configuration, the position of the limiting plate can be adjusted up and down, so as to drive the limiting door to adjust the closing size of the discharge port through the limiting plate. Thus, when the powder to be transported enters the material guiding housing 161 and is to be transported out from the discharge port, no matter how much the powder to be transported entering the material guiding housing 161 is, it will be restricted by the discharge port to control the flow rate.

[0107] Embodiment Two

[0108] Refer to Figure 4 、 Figure 5 In another embodiment, the first transportation device is a screw device 120'. For powders with a larger mesh number, after such powders to be transported enter the funnel device, due to the friction between the powders, it is not easy to fall and disperse, so other transportation methods need to be adopted. Specifically, the screw device 120' includes:

[0109] - Screw housing 121

[0110] The screw housing 121 forms the outer contour of the screw device 120', is provided with an inlet and an outlet. The inlet is communicated with the leakage outlet 112 to receive the powder to be transported, and the outlet extends along the first transportation direction and faces the second transportation device 130. Then, after the powder to be transported falls out from the funnel device 110, it will enter the screw housing 121 through the inlet and then fall out from the outlet. And during the transportation process, except for the outlet, other positions of the screw housing 121 are isolated from the external space.

[0111] - Screw 122

[0112] The screw 122 is arranged and enclosed within the screw housing 121, and its pivoting direction is such that the powder to be transported rotates along the outer periphery of the screw 122 and is transported in the first transport direction until the discharge port. It can be understood that when using the screw 122 for transportation, the space in the first transport direction is smaller, and even for powders with a larger mesh number, smaller particles, and a more delicate and viscous state between the powder particles, they can still be transported.

[0113] In an alternative or preferred embodiment, the powder transportation system 100 further includes:

[0114] - A weighing device 170

[0115] The weighing device 170 is arranged between the first transportation device and the second transportation device 130, and is used for controlling the flow and weighing the powder to be transported that is transported out from the first transportation device. In other words, when the powder to be transported with the required mass is weighed, the passage between the first transportation device and the second transportation device 130 will be closed. Therefore, if the weighing device 170 is used in conjunction with the first valve assembly 150, the weighing device 170 opens the passage between the first transportation device and the second transportation device 130, and the first valve 152 is closed, so that the weighing device 170 pours the powder to be transported that meets the quality requirements onto the second transportation device 130; when the weighing device 170 closes the passage between the first transportation device and the second transportation device 130, the first valve 152 opens, and the powder to be transported continuously enters the weighing device 170 to be weighed. If the weighing device 170 is used in conjunction with the screw 122, the weighing device 170 opens the passage between the first transportation device and the second transportation device 130, and the screw 122 stops rotating; when the weighing device 170 closes the passage between the first transportation device and the second transportation device 130, the screw 122 rotates, and the powder to be transported continuously enters the weighing device 170 to be weighed.

[0116] To achieve the above configuration, the weighing device 170 specifically includes:

[0117] - A powder bin 171

[0118] Facing the end of the first transportation device, it is arranged below the first transportation device and receives the powder to be transported that falls from the first transportation device. The powder bin 171 has a transfer port, and the transfer port faces the second transportation device 130, and the transfer port can be controlled to be opened or closed.

[0119] - A sealing plate 172

[0120] The sealing plate 172 is hinged to the powder bin 171 and rotates around the pivot of the transfer port through rotation at the hinged position, thereby realizing the opening or closing of the transfer port.

[0121] - A second pneumatic rod 173

[0122] One end of the second pneumatic rod 173 is fixed to the powder bin 171, and the other end is fixed to the sealing plate 172. It is controlled to drive the sealing plate 172 to rotate.

[0123] - Electromagnetic force weighing sensor 174

[0124] The electromagnetic force weighing sensor 174 is connected to the second pneumatic rod 173. When the powder to be transported falls to the sealing plate 172, it will measure the amount of the powder to be transported entering the powder bin 171 according to the gravity of the powder to be transported on the sealing plate 172. When the quality meets the set requirements, it will send an instruction to the central control device to close the first valve 152 or close the screw 122, and start the second pneumatic rod 173 to drive the sealing plate 172 to rotate. At this time, the transfer port is opened and communicated with the external space, and the powder to be transported falls from the transfer port to the second transportation device 130; after the set time has passed, the second pneumatic rod 173 is driven again to rotate the sealing plate 172 back, separating the transfer port from the external space, and the first valve 152 can be opened again or the screw 122 can be started to transport the powder to be transported from the first transportation device to the powder bin 171.

[0125] Preferably or optionally, at least one screen can be arranged in the cavity of the funnel device 110. The screen spans the entire cavity of the funnel device 110 along the radial direction of the funnel device 110. When the powder to be transported enters the funnel device 110, unnecessary particles can be filtered out through the screen.

[0126] In addition to the screen, the powder transportation system 100 may further include:

[0127] - Air blowing device

[0128] Considering that after the powder transportation system 100 has been used for a long time, various residues of the powder to be transported will adhere to each device of the powder transportation system 100, which will bring inconvenience to the subsequent use of the powder transportation system 100, environmental hygiene, powder mixing, etc. Therefore, the setting of the air blowing device, such as various devices that can release air streams and air columns, can provide air streams to any one or more of the funnel device 110, the first transportation device, the second transportation device 130 or the upending device 140 during use to blow away the powder adhering to them.

[0129] - Air vibration device

[0130] Considering the diversity of the powder to be transported, some powders such as flour, or powders similar to flour are likely to adhere to the inner wall of the funnel device 110 and do not fall. Therefore, the air vibration device can be attached to the outside of any funnel device 110. After being powered on, it vibrates the funnel device 110 to shake off the powder adhering to the inner wall and extend the service life of the funnel device 110.

[0131] Preferably or optionally, the powder transportation system 100 further includes:

[0132] - Encapsulation device

[0133] The encapsulation device can be arranged beside the flip-chip device 140. When the encapsulation bag is arranged below the flip-chip device 140 and receives the powder to be transported, the encapsulation device can encapsulate the encapsulation bag.

[0134] On both side parts of the conveyor belt of the second transportation device 130, at least one sealing belt is provided to isolate the transportation space of the conveyor belt from the external space, preventing some of the powder to be transported from falling out through the side gap of the conveyor belt when being transported on the second transportation device 130. In addition, at least one convex element can be arranged on the conveyor belt of the second transportation device 130. The convex element is in a zigzag shape, and the concave part of the convex element faces the second transportation direction to enhance the transportation effect of the powder to be transported, and apply a thrust force and / or frictional force to the powder to be transported through the convex element.

[0135] In addition, the powder transportation system 100 may further include:

[0136] - Frame 180

[0137] The frame 180 is arranged outside the hopper device 110, the first transportation device, the second transportation device 130 and the flip-chip device 140, forming the outer contour of the entire powder transportation system 100.

[0138] - Cover

[0139] The cover covers the frame 180. At least one opening is provided on the cover, and each opening faces the receiving port 111. Then the dust at the transportation site will be blocked outside the cover, and only the powder to be transported by manual operation can enter the hopper device 110 through the opening.

[0140] - Operating platform 190

[0141] The operating platform 190 may include a stair element, a platform, etc., and is connected to the frame 180. The platform is arranged on the opposite side of the second transportation device 130. When in use, the operator can walk onto the platform through the stair element and then introduce the powder to be transported into the hopper device 110.

[0142] The powder transportation system 100 may further include: a box body, and the first transportation device is arranged inside the box body. The box body includes a cover plate, and the cover plate seals the upper part of the box body, so that the upper part of the box body is isolated from the external space to prevent dust from entering the first transportation device.

[0143] After having any of the above configurations, the hopper device and the first transportation device supporting it can be arranged in a row, and a second transportation device is arranged at the rear lower part. Each hopper device receives the powder to be transported with different particle sizes. For example, along the second transportation direction, the powders to be transported respectively introduced into the hopper devices are: particles of 5 - 15 mm, particles of 40 - 70 mesh, particles of 3 - 5 mm, powder, particles of 70 - 140 mesh, etc.

[0144] It should be noted that the embodiments of the present invention have better implementability and do not impose any form of restriction on the present invention. Any person skilled in the art may use the disclosed technical content to modify or transform it into an equivalent effective embodiment. However, as long as it does not depart from the technical solution of the present invention, any modification, equivalent change or modification made to the above embodiments based on the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A powder transportation system, characterized in that, Comprising: At least one hopper device, including a receiving port and a discharging port, the receiving port being open for receiving the powder to be transported; At least one first transportation device, each of the first transportation devices being disposed below one of the hopper devices, having a first transportation direction, the powder to be transported falling by gravity from the discharging port onto the first transportation device and moving along the first transportation direction; A second transportation device, disposed below all the first transportation devices, having a second transportation direction, the powder to be transported falling by gravity onto the second transportation device when moving to the end of the first transportation device and moving along the second transportation direction, wherein the first transportation direction and the second transportation direction are not in the same plane; An overturning device, disposed at the end of the second transportation device along the second transportation direction, receiving all the powder to be transported, and the overturning device having an overturning port facing downward so that the powder to be transported falls out from the overturning port.

2. The powder transportation system according to claim 1, wherein: The first transportation device is a first conveyor belt, and the first conveyor belt is substantially horizontally arranged; The powder transportation system further includes: A first valve assembly, disposed at the end of the first conveyor belt along the first transportation direction, including: A first valve housing, forming the outer contour of the first valve assembly; A first valve, connected to the first valve housing, located at the end of the first conveyor belt along the first transportation direction; a first pneumatic rod, one end fixedly connected to the first valve housing and the other end connected to the first valve, controlling the opening or closing of the first valve so that the space inside the first valve housing is communicated with or separated from the external space.

3. The powder transportation system according to claim 2, wherein: The powder transportation system further includes: A material guiding device, disposed below the hopper device and at the starting end of the first conveyor belt along the first transportation direction, connected to the discharging port of the hopper device, receiving the powder to be transported and guiding it onto the first conveyor belt.

4. The powder transportation system according to claim 3, wherein: The material guiding device includes: A material guiding housing, forming the outer contour of the material guiding device and having a discharging port along the first transportation direction; A flow limiting valve, opened at the discharging port, the flow limiting valve including a flow limiting door and a limiting plate, the flow limiting door closing a part of the discharging port, and the limiting plate being connected to the flow limiting door and extending outward; A screw assembly, including a screw and a nut, the screw penetrating the material guiding housing and the limiting plate, and the nut being sleeved outside the screw and located on the side of the limiting plate away from the material guiding housing. When the nut rotates, the position of the limiting plate is adjusted up and down to adjust the closing size of the flow limiting door for the discharging port.

5. The powder transportation system according to claim 1, wherein: The first transportation device is a screw device, and the screw device includes: A screw housing, provided with a guiding inlet and a guiding outlet, the guiding inlet being communicated with the discharging port to receive the powder to be transported; The screw is enclosed in the screw housing and rotates to transport the powder to be transported entering the screw housing to the discharge port.

6. The powder transportation system according to claim 1, wherein, It further includes: A weighing device is provided between the first transportation device and the second transportation device. The weighing device includes: A powder bin faces the end of the first transportation device, receives the powder to be transported, and the powder bin has a transmission port that faces the second transportation device; A sealing plate is hinged on the powder bin and can pivot around the transmission port; A second pneumatic rod has one end fixed on the powder bin and the other end fixed on the sealing plate; An electromagnetic force weighing sensor is connected to the second pneumatic rod to control the second pneumatic rod to drive the sealing plate to control the communication or separation between the transmission port and the external space.

7. The powder transportation system according to claim 1, wherein At least one screen is provided in the cavity of the funnel device, and the screen spans the cavity of the funnel device along the radial direction of the funnel device; The powder transportation system further includes: An air blowing device provides airflow to any one or more of the funnel device, the first transportation device, the second transportation device, or the upending device; An air vibrating device is attached to the outside of any of the funnel devices and controllably vibrates the funnel device.

8. The powder transportation system according to claim 1, wherein The powder transportation system further includes: A packaging device is provided beside the upending device to package the package receiving the powder to be transported; At least one sealing strip is provided at partial positions on both sides of the conveyor belt of the second transportation device to isolate the transportation space of the conveyor belt from the external space; At least one raised element is provided on the conveyor belt of the second transportation device. The raised element is in a zigzag shape, and the concave part of the raised element faces the second transportation direction.

9. The powder transportation system according to claim 1, wherein The powder transportation system further includes: A frame is provided outside the funnel device, the first transportation device, the second transportation device, and the upending device; A cover body covers the frame, and the cover body is provided with at least one opening, and each opening faces the receiving port; An operating platform is connected to the frame. The operating platform includes a staircase element and a platform, and the platform is provided on the opposite side of the second transportation device.

10. The powder transportation system according to claim 1, characterized in that, It further includes: A box body, and the first transportation device is provided in the box body. The box body includes a cover plate that seals the upper part of the box body, so that the upper part of the box body is isolated from the external space.

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