High-precision weighing and feeding device

Abstract

The utility model relates to the technical field of weighing and feeding devices, and discloses a high-precision weighing and feeding device which comprises a feeding cabin, the lower end of the feeding cabin is fixedly provided with a material suction pipe communicated with the feeding cabin and used for being inserted into a material source box to extract raw materials, and the upper end of the feeding cabin is fixedly provided with a hanging bracket. And the hanging bracket is hung on an electronic scale, so that the increased weight can be weighed by the electronic scale after the raw materials are extracted to the feeding cabin. According to the utility model, a set trigger threshold value extends into the controller, the air pump is started to extract air, negative pressure is generated in the charging cabin to suck raw materials in the material source box, and when the electronic scale reaches a specified weight, the controller triggers and controls the air pump to rotate reversely, so that the charging cabin is pressurized to discharge the materials; compared with manual weighing, the weighing device is more convenient and faster, and is sensitive in response.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing and feeding devices, in particular to a high-precision weighing and feeding device. Background Art

[0002] Traditional liquid feeding devices do not have a weighing structure, and they need to weigh a specified amount of material before adding the material. This is time-consuming and labor-intensive, and it is difficult to perform a fully sealed operation. It is difficult to ensure the safety of volatile liquid raw materials or foods such as beverages. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a high-precision weighing and feeding device is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A high-precision weighing and feeding device comprises a feeding cabin, the lower end of which is fixed and connected to a suction pipe for inserting into a material source box to extract raw materials, and the upper end of which is fixed with a hanger, which is hung on an electronic scale, so that when the raw materials are extracted into the feeding cabin, the increased weight will be weighed by the electronic scale.

[0006] Preferably, a discharge pipe is fixed and connected to the lower end of the charging cabin for discharging the weighed raw materials.

[0007] Preferably, a first one-way valve is serially connected to the suction pipe, so that the raw materials will not return to the material source box through the suction pipe when the charging chamber is discharged.

[0008] Preferably, a second one-way valve is serially connected to the discharge pipe, so that the charging cabin will not suck external air into the suction pipe when the suction pipe is performing the suction operation.

[0009] Preferably, it also includes an air pump which is connected to the feeding chamber through an air pipe. The air pump generates negative pressure in the feeding chamber by sucking air, so that the suction pipe sucks the raw materials. Conversely, the air pump injects air into the feeding chamber so that the raw materials of a specified weight in the feeding chamber are discharged from the discharge pipe.

[0010] Preferably, it also includes a controller for controlling the air pump to switch between the air extraction and air supply states, the controller is connected to the electronic scale electrical signal, and the controller is automatically triggered when the electronic scale reaches a specified threshold value by setting the specified threshold value.

[0011] The advantages and positive effects of the utility model are: extending the set trigger threshold into the controller, starting the air pump to evacuate the feeding cabin to generate negative pressure to suck the raw materials in the source box; when the electronic scale reaches the specified weight, the controller triggers the air pump to reverse, so that the feeding cabin is pressurized and the material is discharged. Compared with manual weighing, it is more convenient and quick, and has a more sensitive response and a higher accuracy range. In addition, it can automatically perform a cycle of suction, weighing and discharging, which greatly reduces the work intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0015] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0016] like Figure 1 As shown, the utility model describes a high-precision weighing and feeding device, comprising a feeding cabin 13, the lower end of which is fixed and connected with a suction tube 11 for inserting into a source box 10 to extract raw materials, and an upper end of the feeding cabin 13 is fixed with a hanger 14, which is suspended on an electronic scale 15, so that when the raw materials are extracted into the feeding cabin 13, the increased weight will be weighed by the electronic scale 15.

[0017] Preferably, a discharge pipe 20 is fixed and connected to the lower end of the charging chamber 13 for discharging the weighed raw materials.

[0018] Preferably, a first one-way valve 12 is serially connected to the suction pipe 11 , so that the raw materials will not return to the source box 10 through the suction pipe 11 when the charging chamber 13 is discharged.

[0019] Preferably, a second one-way valve 19 is serially connected to the discharge pipe 20, so that the charging chamber 13 will not suck external air into the suction pipe 11 when the suction work is performed.

[0020] Preferably, it also includes an air pump 16 which is connected to the charging chamber 13 through an air pipe 18. The air pump 16 generates negative pressure in the charging chamber 13 by pumping air, thereby causing the suction pipe 11 to suck up the raw materials. Conversely, the air pump 16 injects air into the charging chamber 13 so that the raw materials of a specified weight in the charging chamber 13 are discharged from the discharge pipe 20.

[0021] Preferably, it also includes a controller 17 for controlling the air pump 16 to switch between the air extraction and air supply states. The controller 17 is electrically connected to the electronic scale 15. By setting a specified threshold, the controller 17 is automatically triggered when the electronic scale 15 reaches it.

[0022] During specific implementation, the set trigger threshold is inserted into the controller 17, and the air pump 16 is started to evacuate the feeding chamber 13 to generate negative pressure to suck the raw materials in the source box 10. When the electronic scale 15 reaches the specified weight, the controller 17 triggers the air pump 16 to reverse, so that the feeding chamber 13 is pressurized and the material is discharged. Compared with manual weighing, it is more convenient and quick, and has a more sensitive response and a higher accuracy range. In addition, it can automatically perform a cycle of suction, weighing, and discharging, which greatly reduces the workload.

[0023] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A high-precision weighing and feeding device, comprising a feeding cabin (13), characterized in that: A suction pipe (11) is fixedly provided at the lower end of the feeding chamber (13) and is connected thereto for inserting into a source box (10) to extract raw materials. A hanger (14) is fixedly provided at the upper end of the feeding chamber (13), and the hanger (14) is mounted on an electronic scale (15). Thus, when the raw materials are extracted into the feeding chamber (13), the increased weight will be measured by the electronic scale (15).

2. A high-precision weighing and feeding device according to claim 1, characterized in that: A discharge pipe (20) is fixed and connected to the lower end of the feeding chamber (13) for discharging the weighed raw materials.

3. A high-precision weighing and feeding device according to claim 2, characterized in that: A first one-way valve (12) is serially connected to the suction pipe (11), so that when the material loading chamber (13) is discharged, the raw material will not return to the material source box (10) through the suction pipe (11).

4. A high-precision weighing and feeding device according to claim 3, characterized in that: A second one-way valve (19) is serially connected to the discharge pipe (20), so that the charging chamber (13) will not suck in external air when the suction pipe (11) is performing the suction operation.

5. A high-precision weighing and feeding device according to claim 4, characterized in that: It also includes an air pump (16) which is connected to the charging chamber (13) through an air pipe (18). The air pump (16) generates negative pressure in the charging chamber (13) by sucking air, thereby causing the suction pipe (11) to suck the raw materials. Conversely, the air pump (16) injects air into the charging chamber (13) so that the raw materials of a specified weight in the charging chamber (13) are discharged from the discharge pipe (20).

6. A high-precision weighing and feeding device according to claim 5, characterized in that: It also includes a controller (17) for controlling the air pump (16) to switch between the air extraction and air supply states. The controller (17) is connected to the electronic scale (15) via an electrical signal. When a specified threshold is reached by the electronic scale (15), the controller (17) is automatically triggered.

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