An automatic weighing and feeding device

Abstract

This application is applicable to the technical field of automatic sorting equipment, and provides an automatic weighing and feeding device. The automatic weighing and feeding device includes a weighing unit and a feeding unit. The weighing unit includes a feeding guide plate, an electronic scale, a discharging guide plate, and a first moving component that are connected in sequence. The first moving component is used to move the material from the surface of the weighing pan of the electronic scale to the discharging guide plate. The feeding unit includes a receiving cup, a second moving component, and a plurality of receiving cups. The second moving component is used to drive the receiving cup to move from below the discharging guide plate to above each receiving cup, and to make the material in the receiving cup fall into the receiving cup. The overall volume of the automatic weighing and feeding device can be relatively small, and the influence of the feeding and discharging processes on the electronic scale is small, which can ensure the weighing accuracy of the electronic scale and is applicable to the automatic weighing and classification of small materials including but not limited to precious metals.

Description

Technical Field

[0001] This application relates to the technical field of automatic sorting equipment, and particularly to an automatic weighing and feeding device. Background Art

[0002] Currently, the automatic sorting equipment on the market is mainly used for grading and screening products such as fruits and fish. Usually, conveyors are used to transport the products to be weighed. The overall volume is large, the accuracy is low, and the external environment has a great influence on the weighing process. In the automated production of precious metals, precious metal products are characterized by small volume and small weight. Therefore, the weighing and sorting equipment is required to have high accuracy, good stability and less interference. The aforementioned automatic sorting equipment is not suitable for classifying and sorting precious metals, etc. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide an automatic weighing and feeding device, aiming to provide a weighing and sorting solution suitable for products with small volume and small weight such as precious metals.

[0004] The embodiments of this application are implemented as follows. A weighing unit includes a feeding guide plate, an electronic scale, a discharging guide plate connected in sequence, and a first moving component. The first moving component is used to move the material to be weighed from the surface of the weighing pan of the electronic scale to the discharging guide plate; and

[0005] A feeding unit includes a receiving cup, a second moving component and a plurality of collecting cups. The second moving component is used to drive the receiving cup to move from below the discharging guide plate to above each collecting cup, and to make the material in the receiving cup fall into the collecting cup.

[0006] In one embodiment, the feeding guide plate includes a first guide plate body and first baffles connected to opposite sides of the first guide plate body. An inlet chute is formed between the first baffles and above the first guide plate body. The feeding guide plate inclines downward towards the electronic scale.

[0007] In one embodiment, the feeding guide plate further includes a terminal guide cylinder connected to the lower end of the first guide plate body. The first moving component includes a first motor and a pushing plate driven by the first motor to move. One end of the pushing plate away from the first motor is annular.

[0008] In one embodiment, the automatic weighing and feeding device includes a housing surrounding the first moving component. The first guide plate body penetrates and is fixed to the housing.

[0009] In one embodiment, the feeding guide plate includes a front-end guide cylinder connected to the front end of the first guide plate body; the front-end guide cylinder is located above the feeding guide plate and outside the housing.

[0010] In one embodiment, the first moving component further includes at least one first sensor for detecting the position of the first moving component.

[0011] In one embodiment, the second moving component includes a second motor and a material distributing arm driven by the second motor to move. The receiving cup is arranged on the material distributing arm, and each of the material receiving cups is arranged on the moving path of the material distributing arm.

[0012] In one embodiment, the second moving component further includes at least one second sensor for detecting the position of the material distributing arm.

[0013] In one embodiment, the second moving component further includes a third motor and a third baffle driven by the third motor to move. The third baffle is arranged on the material distributing arm and is located at the bottom of the receiving cup. The third baffle moves to open and close the opening at the bottom of the receiving cup.

[0014] In one embodiment, the second moving component further includes at least one third sensor arranged on the material distributing arm for detecting the position of the third baffle.

[0015] The automatic weighing and material distributing device provided by the embodiment of the present application has the beneficial effects that:

[0016] The automatic weighing and material distributing device provided by the embodiment of the present application includes a weighing unit and a material distributing unit. The weighing unit includes a feeding guide plate, an electronic scale, a discharging guide plate, and a first moving component connected in sequence. When the product to be weighed reaches the electronic scale from the feeding guide plate and is weighed, the first moving component moves the material to be weighed from the surface of the weighing pan of the electronic scale to the discharging guide plate. The material distributing unit includes a receiving cup, a second moving component, and a plurality of material receiving cups. The receiving cup receives the material that has been weighed from below the discharging guide plate. The second moving component drives the receiving cup to move from below the discharging guide plate to above each of the material receiving cups, and makes the material in the receiving cup fall into the material receiving cup. The overall volume of the automatic weighing and material distributing device can be relatively small, the influence on the electronic scale during the feeding and discharging processes is small, the weighing accuracy of the electronic scale can be guaranteed, and it is applicable to the automatic weighing and classification of small materials including but not limited to precious metals. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0018] Figure 1It is a schematic perspective view of the automatic weighing and feeding device provided by the embodiments of the present application;

[0019] Figure 2 It is Figure 1 A schematic structural view of the weighing unit of the automatic weighing and feeding device shown, wherein one side plate is removed;

[0020] Figure 3 It is Figure 1 A schematic structural view of the weighing unit of the automatic weighing and feeding device shown, wherein multiple side plates are removed;

[0021] Figure 4 It is Figure 1 A schematic structural view of the weighing unit of the automatic weighing and feeding device shown, wherein all side plates are removed;

[0022] Figure 5 It is Figure 1 A partial schematic structural view of the weighing unit of the automatic weighing and feeding device shown;

[0023] Figure 6 It is Figure 1 A partial exploded schematic structural view of the weighing unit of the automatic weighing and feeding device shown;

[0024] Figure 7 It is Figure 1 A partial exploded schematic structural view of the feeding unit of the automatic weighing and feeding device shown;

[0025] Figure 8 It is Figure 1 Another partial schematic structural view of the feeding unit of the automatic weighing and feeding device shown;

[0026] Figure 9 It is Figure 1 Another partial schematic structural view of the feeding unit of the automatic weighing and feeding device shown.

[0027] The meanings of the marks in the figure are as follows:

[0028] 300 - Weighing and feeding device;

[0029] 100 - Weighing unit, 11 - First fixing frame, 111 - First base, 112 - Housing, 1121 - Side plate, 1122 - First mounting plate, 1123 - Second mounting plate, 1124 - Third mounting plate, 1125 - Alignment plate, 113 - Support pillar;

[0030] 12 - Feed guide plate, 120 - Feed chute, 121 - First guide plate body, 122 - First baffle, 124 - Front end guide cylinder, 125 - Rear end guide cylinder;

[0031] 13 - Electronic scale;

[0032] 14 - Discharge guide plate, 141 - Second guide plate body, 142 - Second baffle, 140 - Discharge chute;

[0033] 15 - First moving component, 151 - First motor, 152 - Pushing plate, 1520 - Pushing ring, 153 - First sensor;

[0034] 200 - Material distribution unit;

[0035] 21 - Second fixing frame, 211 - Second base, 212 - Bracket;

[0036] 22 - Material receiving cup; 23 - Material collecting cup;

[0037] 24 - Second moving component, 241 - Second motor, 242 - Material distribution arm, 2420 - Stop pin, 243 - Second sensor, 244 - Third sensor, 245 - Third motor, 246 - Third baffle, 2461 - Slot, 2462 - Guide hole, 247 - Connecting rod, 248 - Protective cover. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly fixed or disposed on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of 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 cannot be construed as a limitation of this patent. The terms "first" and "second" are only used for the purpose of convenient description, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0040] Please refer to Figure 1 , the embodiment of the present application provides an automatic weighing and material distribution device 300, which includes a weighing unit 100 and a material distribution unit 200. Among them, as Figures 1 to 3As shown, the weighing unit 100 includes a feeding guide plate 12, an electronic scale 13, a discharging guide plate 14, and a first moving component 15 that are connected in sequence. The feeding guide plate 12 is used to guide the material to be weighed to the surface of the weighing pan of the electronic scale 13. The first moving component 15 is used to move the weighed material from the surface of the weighing pan of the electronic scale 13 to the discharging guide plate 14. The discharging guide plate 14 is used to guide the weighed material to the material distribution unit 200. Please refer to Figure 1 , Figure 7 and Figure 8 . The material distribution unit 200 includes a receiving cup 22, a second moving component 24, and a plurality of receiving cups 23. Each receiving cup 23 is fixedly arranged. The second moving component 24 is used to drive the receiving cup 22 to move from below the discharging guide plate 14 to above each receiving cup 23. When the receiving cup 22 is located below the discharging guide plate 14 (as shown in Figure 1 ), the receiving cup 22 can receive the material from the discharging guide plate 14. When the receiving cup 22 moves above each receiving cup 23, the second moving component 24 is used to make the material in the receiving cup 22 fall into the receiving cup 23. In this way, according to the different weights of the materials, the materials can be collected in different receiving cups 23.

[0041] The automatic weighing and material distribution device 300 provided by the embodiment of the present application includes a weighing unit 100 and a material distribution unit 200. The weighing unit 100 includes a feeding guide plate 12, an electronic scale 13, a discharging guide plate 14, and a first moving component 15 that are connected in sequence. When the material to be weighed arrives at the electronic scale 13 from the feeding guide plate 12 and is weighed, the first moving component 15 moves the weighed material from the surface of the weighing pan of the electronic scale 13 to the discharging guide plate 14. The material distribution unit 200 includes a receiving cup 22, a second moving component 24, and a plurality of receiving cups 23. The receiving cup 22 receives the weighed material from below the discharging guide plate 14. The second moving component 24 drives the receiving cup 22 to move from below the discharging guide plate 14 to above each receiving cup 23 and makes the material in the receiving cup 22 fall into the receiving cup 23. The overall volume of the automatic weighing and material distribution device 300 can be relatively small, and the feeding and discharging processes have little influence on the electronic scale 13, which can ensure the weighing accuracy of the electronic scale 13 and is applicable to the automatic weighing and classification of relatively small materials including but not limited to precious metals.

[0042] Of course, the automatic weighing and feeding device 300 further includes a controller (not shown), and the controller is communicatively connected to both the weighing unit 100 and the feeding unit 200. Specifically, the controller is communicatively connected to the electronic scale 13, the first moving assembly 15, and the second moving assembly 24. The controller receives the weight information fed back by the electronic scale 13 of the weighing unit 100, controls the first moving assembly 15 to move the weighed material out of the electronic scale 13, and controls the second moving assembly 24 of the feeding unit 200 to act according to the weight information, so that the material is collected in the corresponding receiving cup 23.

[0043] The weighing unit 100 can be applied to a production line. The upper end of the feeding guide plate 12 can cooperate with the previous process on the production line, and the material produced and obtained in the previous work automatically reaches the feeding guide plate 12. Of course, the material to be weighed can also enter from the upper end of the feeding guide plate 12 by means of manual placement. There is no special limitation here.

[0044] Please refer to Figure 1 As shown, the weighing unit 100 includes a first fixing frame 11. The electronic scale 13, the feeding guide plate 12, the discharging guide plate 14, and the first moving assembly 15 are all fixedly arranged on the first fixing frame 11, so that the relative positions among the electronic scale 13, the feeding guide plate 12, the discharging guide plate 14, and the first moving assembly 15 are kept fixed.

[0045] Specifically, as Figures 2 to 4 and Figure 6 shown, the first fixing frame 11 includes a first base 111 and a housing 112. The first base 111 is arranged below the electronic scale 13 and the first moving assembly 15 for supporting them from below. The housing 112 is connected around the first base 111 and is in a closed shape, covering and protecting the electronic scale 13, the first moving assembly 15, etc., preventing other foreign objects from falling onto the weighing pan surface of the electronic scale 13 from above and affecting the weighing result, etc. At the same time, it can also prevent dust.

[0046] As Figure 2 and Figure 3 shown, the housing 112 includes a plurality of side plates 1121, and the plurality of side plates 1121 are sequentially connected and enclosed to form a closed shape. In this embodiment, the number of side plates 1121 can be five, and the five side plates 1121 enclose to form an open cuboid, and its open end faces the electronic scale 13 and is connected around the first base 111. In this way, the weighing unit 100 as a whole has a regular cuboid shape. Of course, it is not limited to this. According to specific needs, the number of side plates 1121 can be other numbers, and the weighing unit 100 as a whole can have other shapes, and there is no special limitation here.

[0047] Optionally, at least one side plate 1121 is configured to be movable relative to other side plates 1121 or the first base 111, etc., for example, it can be translated, opened and closed, flipped, etc., so that the housing 112 can be opened to expose the internal electronic scale 13, the first moving component 15, etc., facilitating operations such as observing or cleaning the inside of the housing 112.

[0048] The discharge guide plate 14 and the feed guide plate 12 both pass through the side plate 1121 of the housing 112 and are connected to the electronic scale 13. The purpose of this setting is that, on the one hand, the housing 112 directly supports the discharge guide plate 14 and the feed guide plate 12, and on the other hand, the upper end of the discharge guide plate 14 is located outside the housing 112 for easy placement of materials, and the lower end of the discharge guide plate 14 is located outside the housing 112 for easy connection with the receiving cup 22 of the material distribution unit 200.

[0049] As Figure 3 shown, the feed guide plate 12 has a feed chute 120 for the material to slide. As Figures 2 to 4 and Figure 6 shown, the feed guide plate 12 slopes downward towards the electronic scale 13. When the material to be weighed enters the feed chute 120 of the feed guide plate 12 from the upper end of the feed guide plate 12, the material to be weighed slides under the action of its own gravity until it reaches the weighing pan surface of the electronic scale 13. Similarly, as Figure 3 shown, the discharge guide plate 14 has a discharge chute 140 for the material to slide. And, as Figures 2 to 4 and Figure 6 shown, the discharge guide plate 14 slopes downward away from the electronic scale 13. When the weighed material is moved by the first moving component 15 to the upper end of the discharge guide plate 14, the material slides under the action of its own gravity until it falls into the receiving cup 22.

[0050] As Figure 4 and Figure 6 shown, in one embodiment, the feed guide plate 12 includes a first guide plate body 121 and first baffles 122 connected to opposite sides of the first guide plate body 121. An inlet chute 120 is formed between the first baffles 122 and above the first guide plate body 121. The material slides downward along the upper surface of the first guide plate body 121, and the first baffles 122 are used to prevent the material from sliding out in the horizontal direction. The first guide plate body 121 penetrates the housing 112.

[0051] The horizontal width of the feed chute 120 is larger at the top and smaller at the bottom. That is to say, the feed guide plate 12 is actually in a funnel form, and its lower end has an effect of gathering the material, which can ensure that the material falls within a relatively small range on the weighing pan surface of the electronic scale 13 (or when the weighing pan surface is relatively small itself, the feed guide plate 12 makes the material gather and fall on the weighing pan surface).

[0052] The first guide plate body 121 can be an integrally formed part or a part formed by connecting multiple plate-like structures. Moreover, at least a part of the first baffle 122 and the first guide plate body 121 can be integrally formed or manufactured separately and then connected, and no special limitation is made here.

[0053] As Figure 1 , Figure 2 and Figures 4 to 6 shown, the feeding guide plate 12 further includes a front-end guide cylinder 124 connected to the front end of the first guide plate body 121. The front-end guide cylinder 124 is a hollow cylinder with openings at both ends. The front-end guide cylinder 124 is located outside the housing 112 and is relatively fixed to the housing 112 and the first guide plate body 121. Specifically, as Figures 4 to 6 shown, the first guide plate body 121 can be fixed to the side plate 1121 through a first mounting plate 1122 provided on the outer surface of the side plate 1121; as Figure 5 shown, the front-end guide cylinder 124 is fixed to the side plate 1121 through a second mounting plate 1123 and is inclined above the first guide plate body 121. The material to be weighed enters from the upper opening of the front-end guide cylinder 124 and slides out from the lower opening and can directly enter the feeding chute 120. The purpose of such a setting is to avoid accidental dropping of the material when it enters the feeding chute 120, ensure that the material can enter the feeding chute 120, and when the weighing unit 100 is applied to the production line, it is also convenient for docking with the previous process.

[0054] Please refer to FIG. Figure 3 , Figure 4 and Figure 6 , the discharging guide plate 14 is fixed to the side plate 1121 through a third mounting plate 1124. It can be understood that the setting of the discharging guide plate 14 should not affect the weighing process of the electronic scale 13. For example, the discharging guide plate 14 is suspended relative to the weighing pan surface of the electronic scale 13.

[0055] As Figure 4 and Figure 6 shown, the discharging guide plate 14 includes a second guide plate body 141 and second baffles 142 provided on opposite sides of the second guide plate body 141. The discharging chute 140 is formed on the upper surface of the second guide plate body 141 between the two second baffles 142. Similarly, the horizontal width of the discharging chute 140 gradually decreases from top to bottom so that the material can be gathered and accurately enter the receiving cup 22.

[0056] As Figure 5As shown, a correcting plate 1125 is provided on the housing 112 and extends toward the bottom wall of the feeding chute 120 (i.e., the upper surface of the first guide plate body 121). The distance between the lower end of the correcting plate 1125 and the upper surface of the first guide plate body 121 is small, specifically greater than 0 and less than the dimension of the first baffle 122 in the vertical direction. The purpose of this setting is that the material sliding out from the lower end opening of the front-end guide cylinder 124 can slide in a state of being in contact with the upper surface of the first guide plate body 121 after being blocked by the correcting plate 1125. In this way, the sliding of the material on the first guide plate body 121 is more stable, and phenomena such as the jumping of the material will not occur, thereby reducing the problem of the material jumping out of the feeding chute 120 and ensuring that the material can reach the surface of the electronic scale 13.

[0057] Since the first guide plate body 121 is inclined, in order to ensure that the material can reach the surface of the electronic scale 13 more accurately, as Figure 4 and Figure 6 shown, the feeding guide plate 12 further includes a terminal guide cylinder 125 connected to the lower end of the first guide plate body 121. The terminal guide cylinder 125 is also a hollow cylinder with openings at both ends. It is vertically arranged, the upper end opening is connected to the lower end of the first guide plate body 121, and the lower end opening is vertically oriented toward the weighing pan surface of the electronic scale 13. In this way, the material sliding along the surface of the first guide plate body 121 can be guided by the terminal guide cylinder 125 and vertically fall on the weighing pan surface of the electronic scale 13, without long-distance movement in the horizontal direction, which can further prevent the material from sliding out of the range of the weighing pan surface of the electronic scale 13 and ensure the falling range of the material on the weighing pan surface of the electronic scale 13.

[0058] The first moving assembly 15 is used to move the material on the weighing pan surface of the electronic scale 13 to the discharge guide plate 14. Therefore, the first moving assembly 15 has a first position and a second position: in the first position, the first moving assembly 15 is vertically aligned with the weighing pan surface of the electronic scale 13 and the lower end of the terminal guide cylinder 125; in the second position, the material disengages from the first moving assembly 15 and automatically enters the discharge chute 140 of the discharge guide plate 14.

[0059] As Figure 3 、 Figure 4 and Figure 6As shown, in one embodiment, the first moving component 15 includes a first motor 151 and a pusher plate 152. The first motor 151 is fixedly arranged on the first base 111 through a support column 113 and is located inside the housing 112. The pusher plate 152 is driven by the first motor 151 to rotate. The end of the pusher plate 152 forms a pusher ring 1520, and the pusher ring 1520 is in a ring shape with openings at both the upper and lower ends. In the first position, the pusher ring 1520 is aligned with the lower end of the end guide cylinder 125, and the material dropped onto the weighing plate surface of the electronic scale 13 from the end guide cylinder 125 is restricted within the space in the middle of the pusher ring 1520. In this way, on the one hand, the position of the material on the weighing plate surface of the electronic scale 13 can be further restricted, avoiding the material from slipping out and being unable to be weighed. On the other hand, as long as the pusher plate 152 moves, its pusher ring 1520 can drive the material inside it to move. When the material is driven to move to the surface of the discharge guide plate 14, the material can automatically fall downward and slide along the discharge chute 140, and the pusher plate 152 can rotate in the reverse direction and return to the first position to perform the next pusher action.

[0060] Not limited to the above, in other alternative embodiments, the first moving component 15 can move the material by translation or other available means. For example, the first motor 151 drives the pusher plate 152 to reciprocate horizontally through a transmission member (not shown) so that the pusher plate 152 can be switched between the first position and the second position.

[0061] Optionally, as Figure 6 shown, the lower end of the end guide cylinder 125 forms a flange extending radially outward. The purpose of this setting is that the size (inner diameter) of the internal space of the end guide cylinder 125 can be smaller, so that the range where the material falls on the weighing plate surface of the electronic scale 13 can be smaller, and the flange can ensure that the upper edge of the pusher ring 1520 is completely blocked. Even if the pusher ring 1520 is offset, in this way, it can be further ensured that the material will not jump out of the pusher ring 1520, ensuring the continuity of the weighing process.

[0062] In one embodiment, as Figure 4 and Figure 6 shown, the first moving component 15 further includes at least one first sensor 153. The first sensor 153 is arranged on the first fixing frame 11, specifically on the support column 113, and the two first sensors 153 are both communicatively connected to the controller. The first sensor 153 is used to detect the position of the pusher plate 152, so as to perform position positioning on the pusher plate 152 during the continuous reciprocating movement process, to ensure the accuracy of the position of the pusher plate 152 after subsequent movement, and further ensure the accuracy of its actions of positioning and pushing the material.

[0063] In an alternative embodiment, the number of the first sensors 153 is two. The two first sensors 153 are respectively arranged at two extreme positions of the moving path of the pusher plate 152, and are used to detect the pusher plate 152 when the pusher plate 152 reaches the first position and the second position. That is, when one of the first sensors 153 detects the pusher plate 152, it means that the pusher plate 152 is at the first position at this time. When the other first sensor 153 detects the pusher plate 152, it means that the pusher plate 152 is at the second position at this time. The first sensor 153 feeds back the detection signal to the controller, so that the controller can obtain the position of the pusher plate 152, and thus can correspondingly control the position of the pusher plate 152 at the next moment. Moreover, the control of the first motor 151 by the controller forms a closed loop, which can ensure the accuracy of the actions and positions of the pusher plate 152 and the first motor 151 during the working process.

[0064] Next, please refer to FIG. 1. The material distribution unit 200 further includes a second fixing frame 21, and a second moving assembly 24 and a receiving cup 23 are arranged on the second fixing frame 21.

[0065] Specifically, as Figure 1 and Figure 7 shown, the second fixing frame 21 includes a second base 211 and a bracket 212. A plurality of receiving cups 23 are arranged on the second base 211 along the moving track of the receiving cup 22, and the second moving assembly 24 drives the receiving cup 22 to move. The second base 211 is generally plate-shaped and has a large surface area for placing a plurality of receiving cups 23.

[0066] Among them, as Figure 1 shown, the second fixing frame 21 and the first fixing frame 11 can be independent of each other and do not affect each other. The weighing unit 100 and the material distribution unit 200 can be used separately and adapted to other functional units; or, in other alternative embodiments, the second fixing frame 21 and the first fixing frame 11 can also be integrated or fixedly connected together, so that the weighing unit 100 and the material distribution unit 200 are fixedly connected together.

[0067] In one embodiment, as Figure 7 and Figure 8As shown, the second moving component 24 includes a second motor 241 fixedly arranged on the second base 211, and a material distributing arm 242 driven by the second motor 241 to rotate. One end of the material distributing arm 242 is connected to the second motor 241 and is rotatably supported on the bracket 212. The bracket 212 of the material distributing arm 242 provides support for the material distributing arm 242. The other end of the material distributing arm 242 is connected to the receiving cup 22. Each collecting cup 23 is arranged on the rotation path of the material distributing arm 242. By rotating the material distributing arm 242 by different angles, the receiving cup 22 can reach above different collecting cups 23. Thus, the material in the receiving cup 22 can be distributed into different collecting cups 23.

[0068] Of course, it is not limited to this. In other alternative embodiments, the material distributing arm 242 can be translated or moved in other forms under the drive of the second motor 241, as long as it can correspond to above each collecting cup 23.

[0069] In one embodiment, the second motor 241 is a stepping motor. In this way, the controller can drive the second motor 241 to rotate by a corresponding angle by outputting a corresponding control signal to the second motor 241, so that the material distributing arm 242 and the receiving cup 22 reach above the corresponding collecting cup 23.

[0070] In one embodiment, the material distributing arm 242 has a third position and a fourth position. In the third position, the receiving cup 22 is located below the discharge guide plate 14 and can receive the material from the discharge guide plate 14. The fourth position is the end of the movement track of the material distributing arm 242, that is, the position of the collecting cup 23 that is the farthest from the discharge guide plate 14 on the movement route of the receiving cup 22.

[0071] As Figure 8 As shown, in one embodiment, the second moving component 24 further includes at least one second sensor 243, and the second sensor 243 is communicatively connected to the controller. The second sensor 243 is used to detect the position of the material distributing arm 242, so as to perform position positioning on the material distributing arm 242 during the continuous reciprocating movement, to ensure the accuracy of the position of the material distributing arm 242 after subsequent movement, and further ensure the accuracy of the position of the receiving cup 22.

[0072] In an alternative embodiment, the number of the second sensors 243 is two, which are respectively arranged at two limit positions of the moving path of the material distributing arm 242. The second sensors 243 are used to detect the material distributing arm 242 at a third position and a fourth position. That is, when one of the second sensors 243 detects the material distributing arm 242, it indicates that the material distributing arm 242 and the receiving cup 22 are at the third position. When the other second sensor 243 detects the material distributing arm 242, it indicates that the material distributing arm 242 and the receiving cup 22 are at the fourth position. In this way, the controller obtains the limit positions of the material distributing arm 242, so as to be able to correspondingly control the action of the second motor 241 at the next moment and the position of the material distributing arm 242 at the next moment. Moreover, the control of the second motor 241 by the controller forms a closed loop to a certain extent, which can ensure the accuracy of the actions and positions of the material distributing arm 242 and the second motor 241 during the working process.

[0073] Of course, in other embodiments, a second sensor 243 can be arranged at the position corresponding to each receiving cup 23. When the second sensor 243 detects the material distributing arm 242, it means that the material distributing arm 242 reaches the corresponding position. Then, the dropping of the material from the receiving cup 22 can be controlled. At this time, the second motor 241 can be a non-stepping motor, or it can still be a stepping motor.

[0074] As Figures 7 to 9 shown, in one embodiment, the second moving assembly 24 further includes a third motor 245 arranged on the material distributing arm 242 and a third baffle 246 driven by the third motor 245 to move. The third baffle 246 moves to open and close the opening at the bottom of the receiving cup 22. When the opening at the bottom of the receiving cup 22 is closed, the material can be received from the discharge guide plate 14. When the opening at the bottom of the receiving cup 22 is opened, the material in the receiving cup 22 can drop.

[0075] In this way, the third baffle 246 has a fifth position and a sixth position. The fifth position is the position where the opening at the bottom of the receiving cup 22 is closed, and the sixth position is the position where the opening at the bottom of the receiving cup 22 is opened.

[0076] As Figure 8 and Figure 9 shown, the second moving assembly 24 further includes at least one third sensor 244. The third sensor 244 is communicatively connected to the controller and is used to detect the position of the third baffle 246 and position the third baffle 246 during the continuous reciprocating movement process to ensure the accuracy of the position of the third baffle 246 after subsequent movement, and further ensure the accuracy of the actions of the receiving cup 22 for receiving and releasing the material.

[0077] In one embodiment, the second moving component 24 includes two third sensors 244 which are respectively arranged on the material distributing arm 242 and are both communicatively connected to the controller. Moreover, the two third sensors 244 are arranged at two limit positions of the moving path of the third baffle 246. In this way, when one of the third sensors 244 detects the third baffle 246, it indicates that the opening at the bottom of the receiving cup 22 is in a closed state, and when the other third sensor 244 detects the third baffle 246, it indicates that the opening at the bottom of the receiving cup 22 is in an open state. In this way, the controller obtains the position of the third baffle 246, and correspondingly can control the action of the third motor 245 at the next moment and the position of the third baffle 246 at the next moment, ensuring the accuracy of the position of the third baffle 246 at different moments and the accuracy of material distribution.

[0078] The third baffle 246 can close and open the opening at the bottom of the receiving cup 22 by means of translation, rotation or other means. For example Figure 9 As shown, in this embodiment, the output shaft of the third motor 245 is connected to a connecting rod 247, and the end of the connecting rod 247 far from the third motor 245 is movably arranged in a strip-shaped hole 2461 on the third baffle 246. The extending direction of the strip-shaped hole 2461 is perpendicular to the translation direction of the third baffle 246 and is located in the rotation plane of the connecting rod 247. When the output shaft of the third motor 245 drives the connecting rod 247 to rotate, the rotation of the end of the connecting rod 247 far from the third motor 245 is converted into the translation of the third baffle 246.

[0079] Of course, as Figure 9 shown, the receiving cup 22 is located on the upper surface of the material distributing arm 242, the lower end opening of the receiving cup 22 penetrates through to the lower surface of the material distributing arm 242, and the third baffle 246 is located on the lower surface of the material distributing arm 242. Among them, a plurality of guiding holes 2462 are further provided on the third baffle 246. The guiding holes 2462 are strip-shaped and extend along the translation direction of the third baffle 246. Structural members such as a stop pin 2420 pass through the guiding holes 2462 and limit the third baffle 246 on the lower surface of the material distributing arm 242, so that the third baffle 246 fits on the lower surface of the material distributing arm 242 and slides under the limitation of the guiding holes 2462.

[0080] In addition, please refer to Figure 1 and Figures 7 to 9 shown, the material distributing unit 200 further includes a plurality of protective covers 248. One protective cover 248 is arranged on the second base 211 and is used to protect and cover the bracket 212, the second motor 241, the second sensor 243, etc. Another protective cover 248 is arranged on the material distributing arm 242 and is used to protect the third motor 245, etc.

[0081] The working process of the automatic weighing and feeding device 300 of the present application is as follows:

[0082] The material to be weighed enters from the feeding guide plate 12 and slides downward to the surface of the weighing pan of the electronic scale 13; the electronic scale 13 weighs the material and feeds back the weighing result to the controller; after receiving the weighing result, the controller controls the first motor 151 to rotate, and the pushing plate 152 moves from the first position to the second position, pushing the weighed material onto the discharging guide plate 14; the distributing arm 242 is in the third position, and the material slides from the discharging guide plate 14 and drops into the receiving cup 22; the controller controls the distributing arm 242 to rotate by a corresponding angle according to the weighing result, and the distributing arm 242 and the receiving cup 22 reach above the corresponding receiving cup 23; the controller controls the third motor 245 to rotate, so that the third baffle 246 moves and the opening at the bottom of the receiving cup 22 is opened, and the material drops into the receiving cup 23. At this time, the controller receives the information fed back by the third sensor 244; the controller controls the third motor 245 to rotate in the reverse direction, and the third baffle 246 moves to close the opening at the bottom of the receiving cup 22; the controller controls the second motor 241 to rotate and returns the distributing arm 242 to the third position.

[0083] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic weighing and feeding device, characterized in that, Comprising: A weighing unit, including a feeding guide plate, an electronic scale, a discharging guide plate connected in sequence, and a first moving component for moving materials from the surface of the weighing pan of the electronic scale to the discharging guide plate; And A material distributing unit, including a receiving cup, a second moving component, and a plurality of collecting cups, where the second moving component is used to drive the receiving cup to move from below the discharging guide plate to above each of the collecting cups, and to make materials of different weights in the receiving cup fall into different collecting cups; The first moving component includes a first motor and a pushing plate driven by the first motor to move. One end of the pushing plate away from the first motor is in a ring shape with openings at the upper and lower ends. The upper end of the pushing plate is used to align with the lower end of the feeding guide plate, and the lower end of the pushing plate is used to align with the surface of the weighing pan to confine the materials falling from the feeding guide plate onto the surface of the weighing pan inside it; The feeding guide plate includes a first guide plate body and first baffles connected to opposite sides of the first guide plate body. A feeding chute is formed between the first baffles and above the first guide plate body, and the feeding guide plate inclines downward towards the electronic scale; The automatic weighing and distributing device includes a housing surrounding the first moving component, and the first guide plate body penetrates and is fixed to the housing; A correcting plate extending towards the upper surface of the first guide plate body is provided on the housing, and the distance between the lower end of the correcting plate and the upper surface of the first guide plate body is greater than 0 and less than the dimension of the first baffle in the vertical direction.

2. The automatic weighing and feeding device according to claim 1, wherein, The feeding guide plate further includes an end guide cylinder connected to the lower end of the first guide plate body.

3. The automatic weighing and feeding device according to claim 1, wherein, The feeding guide plate includes a front end guide cylinder connected to the front end of the first guide plate body; the front end guide cylinder is located above the feeding guide plate and outside the housing.

4. The automatic weighing and feeding device according to any one of claims 1 to 3, characterized in that, The first moving component further includes at least one first sensor for detecting the position of the first moving component.

5. The automatic weighing and feeding device according to claim 4, characterized in that, The second moving component includes a second motor and a distributing arm driven by the second motor to move. The receiving cup is provided on the distributing arm, and each of the collecting cups is provided on the moving path of the distributing arm.

6. The automatic weighing and feeding device according to claim 5, characterized in that The second moving component further includes at least one second sensor for detecting the position of the distributing arm.

7. The automatic weighing and feeding device according to claim 5, characterized in that, The second moving component further includes a third motor and a third baffle driven by the third motor to move. The third baffle is provided on the distributing arm and at the bottom of the receiving cup, and the third baffle moves to open and close the opening at the bottom of the receiving cup.

8. The automatic weighing and feeding device according to claim 7, wherein, The second moving component further includes at least one third sensor provided on the distributing arm for detecting the position of the third baffle.

Images