Automatic feeding device

Abstract

The utility model discloses an automatic feeding device, and belongs to the field of feeding devices. The fluidization assembly is communicated with the transition stock bin; the material suction assembly is communicated with the top end of the transition material bin; one end of the conveying assembly communicates with the bottom end of the transition bin; one end of the measuring bin is communicated with the other end of the conveying assembly; the valve is communicated with the other end of the metering bin; the weighing assembly is connected with the metering bin; and the controller is electrically connected with the conveying assembly, the valve and the weighing assembly. The beneficial effects of the utility model lie in that the device not only facilitates the prevention of bridging, but also has good weighing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feeding device, especially an automatic feeding device. BACKGROUND

[0002] The feeding device is a device for adding materials such as granular materials or powder materials after weighing, which has the advantage of facilitating feeding.

[0003] However, when the related materials enter the bin body, they are easily combined together due to free falling, which leads to a large stacking density and poor fluidity, and further leads to bridging. Meanwhile, the weighing performance of the related feeding device is poor, which easily leads to a large material addition error. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an automatic feeding device which not only prevents bridging but also has good weighing performance.

[0005] TECHNICAL SCHEME

[0006] An automatic feeding device comprises:

[0007] a transition bin;

[0008] a fluidization assembly in communication with the transition bin;

[0009] a material suction assembly in communication with the top end of the transition bin;

[0010] a conveying assembly, one end of which is in communication with the bottom end of the transition bin;

[0011] a metering bin, one end of which is in communication with the other end of the conveying assembly;

[0012] a valve in communication with the other end of the metering bin;

[0013] a weighing assembly connected to the metering bin;

[0014] a controller electrically connected to the conveying assembly, the valve, and the weighing assembly.

[0015] Optionally, the fluidization assembly comprises:

[0016] an air pocket;

[0017] a pipe unit in communication between the air pocket and the transition bin.

[0018] Optionally, the pipe unit comprises:

[0019] an annular pipe sleeved outside the transition bin, the annular pipe being in communication with the air pocket;

[0020] A plurality of branch pipes are in communication between the annular pipe and the transition hopper.

[0021] Optionally, the material suction assembly comprises:

[0022] A vacuum pump;

[0023] A material pipe in communication with the top end of the transition hopper;

[0024] An air pipe in communication between the vacuum pump and the top end of the transition hopper.

[0025] Optionally, the conveying assembly comprises:

[0026] An electric motor in electrical connection with the controller;

[0027] A conveying pipe in communication between the bottom end of the transition hopper and the metering hopper;

[0028] A helical blade connected with the driving shaft of the electric motor, the helical blade being located in the conveying pipe.

[0029] Optionally, the weighing assembly further comprises a mounting frame, the weighing assembly comprises a plurality of pressure sensors in electrical connection with the controller, the pressure sensors are connected with the mounting frame, and the detection ends of the pressure sensors are in abutment with the metering hopper.

[0030] Optionally, the plurality of pressure sensors are uniformly distributed along the circumference of the metering hopper.

[0031] Optionally, the automatic material feeding device further comprises:

[0032] A material outlet pipe in communication with the end of the valve away from the metering hopper;

[0033] An exhaust valve in communication with the material outlet pipe.

[0034] Advantages:

[0035] (1) The fluidization assembly supplies air into the transition hopper, which facilitates increasing the gap between materials, reducing the bulk density, increasing the fluidity, and thus preventing bridging;

[0036] (2) When the weighing assembly detects that the weight of the material in the metering hopper reaches a preset value, the weighing assembly transmits a detection signal to the controller, the controller closes the conveying assembly and opens the valve, which facilitates adding the material in the metering hopper into the relevant sub-hoppers, thereby completing automatic material feeding, has good weighing performance, and prevents large material addition error. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 FIG. 1 is a structural schematic view of an automatic material feeding device according to an embodiment of the present application;

[0038] In the figure: 1, transition hopper; 2, fluidizing assembly; 21, gas pocket; 22, pipe unit; 221, annular pipe; 222, branch pipe; 3, suction assembly; 31, vacuum pump; 32, material pipe; 33, gas pipe; 4, conveying assembly; 41, motor; 42, conveying pipe; 43, spiral blade; 5, metering hopper; 6, valve; 7, weighing assembly; 71, pressure sensor; 8, mounting frame; 91, discharge pipe; 92, exhaust valve. DETAILED DESCRIPTION

[0039] In order to make the technical scheme of the utility model more clear, the following will make further detailed description to the utility model in combination with the drawings and specific embodiments.

[0040] The application will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings. The first, second and the like in the utility model are set for the convenience of describing the technical scheme of the utility model, and have no specific limiting effect, and are all generic, which do not constitute a limiting effect on the technical scheme of the utility model. It should be noted that, in the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The multiple technical schemes in the same embodiment, and the multiple technical schemes between different embodiments, can be arranged and combined to form new technical schemes without contradiction or conflict, which are within the scope of protection of the utility model.

[0041] Embodiment 1

[0042] As Figure 1The embodiment provides an automatic feeding device, which comprises a transition hopper 1, a fluidization assembly 2 in communication with the transition hopper 1, a material suction assembly 3 in communication with the top end of the transition hopper 1, a conveying assembly 4, one end of the conveying assembly 4 being in communication with the bottom end of the transition hopper 1, a metering hopper 5, one end of the metering hopper 5 being in communication with the other end of the conveying assembly 4, a valve 6 in communication with the other end of the metering hopper 5, a weighing assembly 7 connected with the metering hopper 5, and a controller electrically connected with the conveying assembly 4, the valve 6 and the weighing assembly 7.

[0043] Specifically, in operation, first, the material suction assembly 3 sucks granular material or powder material into the transition hopper 1, and meanwhile, the fluidization assembly 2 supplies gas into the transition hopper 1, so as to increase the gap between the materials, reduce the bulk density and increase the flowability, thereby preventing bridging; then, the conveying assembly 4 conveys the material in the transition hopper 1 to the metering hopper 5; then, when the weighing assembly 7 detects that the weight of the material in the metering hopper 5 reaches a preset value, the weighing assembly 7 transmits a detection signal to the controller, the controller closes the conveying assembly 4 and opens the valve 6, so as to add the material in the metering hopper 5 into the relevant sub-hoppers, thereby completing automatic feeding, and the weighing performance is good and the material addition error is small.

[0044] Further, as shown in Figure 1 , the fluidization assembly 2 comprises a gas pocket 21 and a pipe unit 22 in communication between the gas pocket 21 and the transition hopper 1. Specifically, the gas pocket 21 is used for supplying gas, and the form of the gas pocket 21 can be a box type or a tank type; the pipe unit 22 is used for facilitating the gas in the gas pocket 21 to enter the transition hopper 1.

[0045] Further, as shown in Figure 1 , the pipe unit 22 comprises an annular pipe 221 sleeved outside the transition hopper 1 and in communication with the gas pocket 21, and a plurality of branch pipes 222 in communication between the annular pipe 221 and the transition hopper 1.

[0046] Specifically, the annular pipe 221 is used for uniformly distributing the gas from the gas pocket 21; the plurality of branch pipes 222 are used for facilitating the gas from the annular pipe 221 to enter the transition hopper 1, thereby facilitating multi-point blowing of the material in the transition hopper 1, further facilitating the increase of the gap between the materials, and the plurality of branch pipes 222 are preferably uniformly distributed along the circumference of the transition hopper 1.

[0047] Further, as shown in Figure 1 , the material suction assembly 3 comprises a vacuum pump 31, a material pipe 32 in communication with the top end of the transition hopper 1, and a gas pipe 33 in communication between the vacuum pump 31 and the top end of the transition hopper 1. Specifically, the vacuum pump 31 is used for facilitating the transition hopper 1 to be in a negative pressure state through the gas pipe 33, thereby facilitating the material to enter the transition hopper 1 through the material pipe 32.

[0048] Further, as shown inFigure 1 The conveying assembly 4 comprises a motor 41 electrically connected with the controller, a conveying pipe 42 communicated between the bottom end of the transition hopper 1 and the metering hopper 5, and a spiral blade 43 connected with the driving shaft of the motor 41, which is located in the conveying pipe 42. Specifically, the driving shaft of the motor 41 drives the spiral blade 43 to rotate, so that the material in the transition hopper 1 enters the metering hopper 5.

[0049] Further, the weighing assembly 7 comprises a plurality of pressure sensors 71 electrically connected with the controller. Figure 1 The pressure sensors 71 are connected with the mounting frame 8, and the detection ends of the pressure sensors 71 abut against the metering hopper 5.

[0050] Specifically, the pressure sensors 71 are carried by the mounting frame 8 and are used to detect the weight of the material in the metering hopper 5. The number of the pressure sensors 71 is not limited, and can be three or four, preferably three, so as to reduce the number of the pressure sensors 71 as much as possible while ensuring the stability of the metering hopper 5. The pressure sensors 71 can be of a resistance type or a capacitance type.

[0051] Further, the plurality of pressure sensors 71 are distributed along the circumference of the metering hopper 5. Figure 1 Specifically, the circumferential distribution facilitates uniform stress of the pressure sensors 71 and the metering hopper 5.

[0052] Further, the metering assembly 7 further comprises a discharge pipe 91 communicated with the end of the valve 6 away from the metering hopper 5, and an exhaust valve 92 communicated with the discharge pipe 91. Figure 1 Specifically, the exhaust valve 92 is used to exhaust the gas in the discharge pipe 91, so that the discharge pipe 91 is in a negative pressure state, thereby facilitating the material in the metering hopper 5 to be quickly added to the relevant sub-hoppers through the discharge pipe 91.

[0053] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An automatic charging device, characterized by, It comprises: a transition hopper (1); a fluidizing assembly (2) in communication with the transition hopper (1); a suction assembly (3) in communication with the top end of the transition hopper (1); a conveying assembly (4) in communication between one end of the conveying assembly (4) and the bottom end of the transition hopper (1); a metering hopper (5) in communication between one end of the metering hopper (5) and the other end of the conveying assembly (4); a valve (6) in communication with the other end of the metering hopper (5); a weighing assembly (7) connected to the metering hopper (5); a controller electrically connected to the conveying assembly (4), the valve (6) and the weighing assembly (7).

2. An automatic charging device according to claim 1, characterized in that The fluidizing assembly (2) comprises: an air pocket (21); a pipe unit (22) in communication between the air pocket (21) and the transition hopper (1).

3. An automatic charging device according to claim 2, wherein The pipe unit (22) comprises: an annular pipe (221) sleeved on the transition hopper (1), the annular pipe (221) being in communication with the air pocket (21); a plurality of branch pipes (222) in communication between the annular pipe (221) and the transition hopper (1).

4. An automatic charging device according to any one of claims 1 to 3, characterized in that The suction assembly (3) comprises: a vacuum pump (31); a material pipe (32) in communication with the top end of the transition hopper (1); an air pipe (33) in communication between the vacuum pump (31) and the top end of the transition hopper (1).

5. An automatic charging device according to any one of claims 1-3, characterized in that The conveying assembly (4) comprises: a motor (41) electrically connected to the controller; a conveying pipe (42) in communication between the bottom end of the transition hopper (1) and the metering hopper (5); a spiral blade (43) connected to the driving shaft of the motor (41), the spiral blade (43) being located in the conveying pipe (42).

6. An automatic charging device according to any one of claims 1 to 3, characterized in that It further comprises a mounting frame (8), the weighing assembly (7) comprises a plurality of pressure sensors (71) electrically connected to the controller, the pressure sensors (71) are connected to the mounting frame (8), and the detection ends of the pressure sensors (71) are in contact with the metering hopper (5).

7. An automatic charging device according to claim 6, characterized in that The plurality of pressure sensors (71) are distributed along the circumference of the metering hopper (5).

8. An automatic charging device according to any one of claims 1-3, characterized in that It further comprises: a discharge pipe (91) in communication with the end of the valve (6) away from the metering hopper (5); an exhaust valve (92) in communication with the discharge pipe (91).

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