Feeding device

Abstract

According to the feeding device, a negative pressure inlet can be communicated with a vacuum generator, when the feeding device is in a feeding state, a controller can control a first valve body and a third valve body to be opened and control a second valve body to be closed, and at the moment, the vacuum generator applies negative pressure to a vacuum cavity; under the action of negative pressure in the vacuum cavity, materials enter the material cavity from the feeding port, when the feeding device is switched to the material mixing state from the feeding state, the controller can control the first valve body and the third valve body to be closed and control the second valve body to be opened, at the moment, gas generated by mixing the materials in the material cavity can enter the vacuum cavity, and therefore the materials in the vacuum cavity can be mixed. And the air is exhausted to the outside through the exhaust port, so that the probability of chamber explosion caused by overlarge air pressure in the vacuum cavity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of material feeding technology, and in particular to a feeding device. Background Technology

[0002] For feeding powdery materials, negative pressure is often required to draw the material into the material chamber.

[0003] In related technologies, the feeding device includes a material chamber and a vacuum chamber that are connected to each other. The vacuum generating device generates negative pressure in the vacuum chamber to create negative pressure in the material chamber, so that various powdered materials can be drawn into the material chamber from the feed inlet of the material chamber, and then the various powdered materials can be mixed in the material chamber.

[0004] However, during the mixing process of various materials in the material chamber, a large amount of gas is generated. This gas will remain in the vacuum chamber, causing the vacuum chamber to explode due to excessive gas pressure. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art. This utility model provides a feeding device. In the feeding device of this embodiment, the probability of the vacuum chamber causing a chamber explosion is lower.

[0006] The feeding device provided according to the embodiment of this utility model has a feeding state and a mixing state. The feeding device includes a storage bin, a vacuum chamber, and a controller. The storage bin has a material cavity, an inlet and an exhaust port that are respectively connected to the material cavity, and a first valve body is provided at the inlet. The vacuum chamber has a vacuum cavity that is connected to the exhaust port, an exhaust port and a negative pressure inlet that are respectively connected to the vacuum cavity, the exhaust port is connected to the outside of the vacuum cavity, a second valve body is provided at the exhaust port, and a third valve body is provided at the negative pressure inlet. The negative pressure inlet is used to connect to a vacuum generator. The controller is electrically connected to the first valve body, the second valve body and the third valve body respectively. When the feeding device is in the feeding state, the controller can control the first valve body and the third valve body to open and control the second valve body to close. When the feeding device is in the mixing state, the controller can control the first valve body and the third valve body to close and control the second valve body to open.

[0007] The feeding device described in this utility model has at least the following beneficial effects: In the feeding device of this application, the negative pressure inlet can be connected to the vacuum generator. When the feeding device is in the feeding state, the controller can control the first valve body and the third valve body to open and control the second valve body to close. At this time, the vacuum generator applies negative pressure to the vacuum chamber. Under the action of negative pressure in the vacuum chamber, the material enters the material chamber from the feed inlet. When the feeding device switches from the feeding state to the mixing state, the controller can control the first valve body and the third valve body to close and control the second valve body to open. At this time, the gas generated by the mixing of materials in the material chamber can enter the vacuum chamber and be discharged to the outside from the exhaust port, so as to reduce the probability of the chamber exploding due to excessive gas pressure in the vacuum chamber.

[0008] The feeding device according to the embodiment of this utility model further includes an air source processor, which is connected to the material chamber and is used to input compressed gas into the material chamber.

[0009] According to the feeding device described in this embodiment of the utility model, a safety valve is installed on the storage bin, and the safety valve is connected to the material chamber and the outside.

[0010] According to the feeding device described in the embodiment of this utility model, the storage bin includes a bin body and a bin cover. The bin cover is detachably connected to the bin body, and the bin body and the bin cover together define a material cavity.

[0011] According to the feeding device described in this embodiment of the utility model, the hopper is a funnel shape with a cross-sectional dimension that gradually decreases from top to bottom, and the bottom end of the hopper is provided with a discharge port that communicates with the material cavity.

[0012] According to the feeding device described in this embodiment of the utility model, both the feed inlet and the air extraction port are located on the bin cover.

[0013] According to the feeding device described in this embodiment of the utility model, the exhaust port is positioned directly opposite the air extraction port.

[0014] The feeding device according to the embodiment of this utility model further includes a frame, and a storage bin is disposed on the frame; the frame is also provided with a weighing module, which is used to detect the weight of the storage bin.

[0015] According to the feeding device described in this utility model embodiment, the frame includes an annular frame, and the storage bin is disposed in the inner ring of the annular frame. The storage bin is provided with a plurality of ear plates distributed circumferentially around the vertical axis, and the ear plates are supported on the annular frame. The weighing module includes a pressure sensor, which is disposed between the ear plates and the annular frame.

[0016] The feeding device according to the embodiment of this utility model further includes a vacuum generator, which is connected to a negative pressure inlet and can generate negative pressure in the vacuum chamber through the negative pressure inlet.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the structure of a feeding device according to an embodiment of the present invention.

[0020] Figure label:

[0021] Storage bin 100; Inlet 101; Exhaust port 102; Safety valve 103; Outlet 104; Ear plate 105; Bin body 110; Bin cover 120;

[0022] Vacuum chamber 200; exhaust port 210; negative pressure inlet 220;

[0023] Gas source processor 300;

[0024] Frame 400; Weighing module 410; Ring frame 420. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] The following is for reference. Figure 1 The feeding device of this application will be described in detail.

[0030] refer to Figure 1 According to an embodiment of the present invention, the feeding device has a feeding state and a mixing state. The feeding device includes a storage bin 100, a vacuum chamber 200, and a controller. The storage bin 100 has a material cavity and has an inlet 101 and an exhaust port 102 respectively connected to the material cavity. A first valve body is provided at the inlet 101. The vacuum chamber 200 has a vacuum chamber connected to the exhaust port 102 and has an exhaust port 210 and a negative pressure inlet 220 respectively connected to the vacuum chamber. The outlet 210 is connected to the outside of the vacuum chamber. A second valve body is provided at the exhaust outlet 210, and a third valve body is provided at the negative pressure inlet 220. The negative pressure inlet 220 is used to connect to the vacuum generator. The controller is electrically connected to the first valve body, the second valve body, and the third valve body respectively. When the feeding device is in the feeding state, the controller can control the first valve body and the third valve body to open and control the second valve body to close. When the feeding device is in the mixing state, the controller can control the first valve body and the third valve body to close and control the second valve body to open.

[0031] Furthermore, when the feeding device of this utility model is working, the negative pressure inlet 220 of the vacuum chamber 200 is connected to the vacuum generator. When the feeding device of this utility model is in the feeding state, the controller controls the first valve body and the third valve body to open and controls the second valve body to close. At this time, the vacuum generator generates negative pressure in the vacuum chamber. Under the action of negative pressure, the powdered material enters the material chamber through the feed inlet 101. Then, the feeding device of this utility model can switch from the feeding state to the mixing state. At this time, the controller controls the first valve body and the third valve body to close and controls the second valve body to open. The material can be mixed in the material chamber, and the gas generated during the mixing process in the material chamber can enter the vacuum chamber and be discharged to the outside from the exhaust port 210 of the vacuum chamber.

[0032] It is understandable that, when the feeding device of this utility model is in the mixing state, the controller can control the second valve body to open, so that the gas generated by the mixing of materials in the material chamber can be discharged from the exhaust port 210 of the vacuum chamber 200 in a timely manner, thereby reducing the probability of the chamber exploding due to excessive gas pressure in the vacuum chamber.

[0033] In some embodiments of this utility model, reference is made to Figure 1The feeding device also includes an air source processor 300, which is connected to the material chamber and is used to input compressed gas into the material chamber.

[0034] It is understood that when the feeding device of this utility model is in the mixing state, the air source processor 300 can input compressed gas into the material chamber, and the compressed gas can drive the material in the material chamber to move, so that the material in the material chamber can be mixed more thoroughly.

[0035] In some embodiments of this utility model, reference is made to Figure 1 A safety valve 103 is installed on the storage silo 100, and the safety valve 103 is connected to the material chamber and the outside.

[0036] It is understandable that by installing a safety valve 103 on the storage hopper 100, and the safety valve 103 being connected to the material chamber and the outside, when the air pressure in the material chamber increases to a certain limit due to the mixing process, the safety valve 103 can discharge the gas in the material chamber to the outside environment, thereby reducing the probability of the material chamber exploding.

[0037] In some embodiments of this utility model, the storage bin 100 includes a bin body 110 and a bin cover 120. The bin cover 120 is detachably connected to the bin body 110, and the bin body 110 and the bin cover 120 together define a material cavity.

[0038] For example, such as Figure 1 As shown, the storage bin 100 includes a bin body 110 and a bin cover 120. The bin cover 120 is detachably connected to the upper end of the bin body 110 via a threaded connector. The bin body 110 and the bin cover 120 together define a material cavity.

[0039] It is understandable that, since the material chamber is defined by the chamber body 110 and the chamber cover 120, and the chamber body 110 and the chamber cover 120 are detachably connected by threaded connectors, when the material in the material chamber becomes blocked, the staff can remove the chamber cover 120 from the chamber body 110 to open the material chamber, thereby facilitating the staff to manually clean the material in the material chamber.

[0040] In some embodiments of this utility model, reference is made to Figure 1 The silo body 110 is a funnel shape with a cross-sectional dimension that gradually decreases from top to bottom, and the bottom end of the silo body 110 is provided with a discharge port 104 that communicates with the material cavity.

[0041] It is understandable that, since the silo 110 is a funnel shape with a gradually decreasing cross-sectional size from top to bottom, and the bottom of the silo 110 is provided with a discharge port 104 that communicates with the material cavity, the material that is mixed evenly in the material cavity can be gathered at the discharge port 104 under the guidance of the funnel-shaped silo 110 and discharged from the discharge port 104; setting the silo 110 as a funnel shape with a gradually decreasing cross-sectional size from top to bottom can reduce the residue of material in the material cavity.

[0042] In some embodiments of this utility model, reference is made to Figure 1 The feed inlet 101 and the air extraction port 102 are both located on the bin cover 120.

[0043] It is understandable that the feed inlet 101 is located on the hopper cover 120 so that the material can enter the material chamber more smoothly under the action of gravity.

[0044] It is understandable that when materials are mixed in the material chamber, the materials will accumulate at the lower end of the material chamber. By setting the air extraction port 102 on the cover 120, the air extraction port 102 can be located above the material chamber so that gas can be discharged from the material chamber.

[0045] In some embodiments of this utility model, the exhaust port 210 is positioned directly opposite the air extraction port 102.

[0046] For example, such as Figure 1 As shown, the air extraction port 102 is located directly above the material chamber, the vacuum chamber 200 is located directly above the storage chamber 100, and the exhaust port 210 is located directly above the air extraction port 102.

[0047] It is understandable that since the exhaust port 210 is directly opposite the suction port 102, the exhaust port 210 can be located on the movement path of the airflow from the suction port 102 to the vacuum chamber in the material chamber, so that the gas entering the vacuum chamber from the suction port 102 can be discharged from the exhaust port 210 more smoothly.

[0048] In some embodiments of this utility model, reference is made to Figure 1 The feeding device also includes a frame 400, and a storage bin 100 is mounted on the frame 400; the frame 400 is also equipped with a weighing module 410, which is used to detect the weight of the storage bin 100.

[0049] Understandably, by setting up the weighing module 410, staff can understand the weight changes in the storage bin 100, thereby indirectly determining the amount of material in the material chamber.

[0050] For example, when the feeding device of this utility model is in the feeding state, the operator can know the weight increase of the storage bin 100 through the weighing module 410, and the weight increase of the storage bin 100 is the weight of the material entering the material cavity. When the weight of the material entering the material cavity reaches the preset value, the feeding device can switch from the feeding state to the mixing state.

[0051] In a further embodiment of this utility model, reference is made to... Figure 1 The frame 400 includes a ring frame 420, and a storage bin 100 is disposed in the inner ring of the ring frame 420. The storage bin 100 is provided with a plurality of ear plates 105 distributed circumferentially around the vertical axis, and the ear plates 105 are supported on the ring frame 420. The weighing module 410 includes a pressure sensor, which is disposed between the ear plates 105 and the ring frame 420.

[0052] It is understandable that, since multiple ear plates 105 are circumferentially distributed around the vertical axis, the overall weight of the storage bin 100 can be evenly distributed onto the ring frame 420 through the ear plates 105; since the pressure sensor is located between the ear plates 105 and the ring frame 420, the pressure sensor can withstand the gravity from the storage bin 100 in order to complete the gravity detection of the storage bin 100.

[0053] In some embodiments of this utility model, the feeding device further includes a vacuum generator (not shown in the figure), which is connected to the negative pressure inlet 220 and can form a negative pressure in the vacuum chamber through the negative pressure inlet 220.

[0054] It is understood that when the feeding device of this utility model is in the feeding state, the vacuum generator can generate negative pressure in the vacuum chamber through the negative pressure inlet 220 to complete the feeding of materials from the feed inlet 101 into the material chamber; when the feeding device of this utility model is in the mixing state, the vacuum generator can stop working so that the materials can be smoothly mixed in the material chamber.

[0055] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A feeding device, characterized in that, The feeding device has a feeding state and a mixing state, and comprises: a storage bin having a material cavity, the storage bin having a feeding port and an air extraction port respectively communicating with the material cavity, the feeding port being provided with a first valve body; a vacuum bin having a vacuum cavity, the vacuum cavity communicating with the air extraction port, the vacuum bin having an exhaust port and a negative pressure inlet respectively communicating with the vacuum cavity, the exhaust port communicating with the outside of the vacuum cavity, the exhaust port being provided with a second valve body, the negative pressure inlet being provided with a third valve body, and the negative pressure inlet being used for communicating with a vacuum generator; a controller electrically connected with the first valve body, the second valve body and the third valve body, the controller being capable of controlling the first valve body and the third valve body to be opened and the second valve body to be closed when the feeding device is in the feeding state, and the controller being capable of controlling the first valve body and the third valve body to be closed and the second valve body to be opened when the feeding device is in the mixing state.

2. The feeding device according to claim 1, characterized in that a gas source processor is further included, the gas source processor communicating with the material cavity and being used for inputting compressed gas into the material cavity.

3. The feeding device according to claim 1, characterized in that a safety valve is mounted on the storage bin, the safety valve respectively communicating with the material cavity and the outside.

4. The feeding device according to claim 1, characterized in that the storage bin comprises a bin body and a bin cover, the bin cover being detachably connected with the bin body, and the bin body and the bin cover jointly defining the material cavity.

5. The feeding device according to claim 4, characterized in that the bin body is funnel-shaped with the cross-sectional dimension gradually decreasing from top to bottom, and the bottom end of the bin body is provided with a discharging port communicating with the material cavity.

6. A feeding device according to claim 4 or 5, characterized in that the feeding port and the air extraction port are both provided on the bin cover.

7. The feeding device according to claim 1, wherein the exhaust port is arranged opposite to the air extraction port.

8. The feeding device according to claim 1, wherein a rack is further included, the storage bin being arranged on the rack; a weighing module is further arranged on the rack, the weighing module being used for detecting the weight of the storage bin.

9. The feeding device according to claim 8, characterized in that the rack comprises an annular rack, the storage bin being arranged in the inner ring of the annular rack, a plurality of ear plates being circumferentially distributed around a vertical axis on the storage bin, the ear plates being carried on the annular rack; the weighing module comprises a pressure sensor, the pressure sensor being arranged between the ear plates and the annular rack.

10. The feeding device according to claim 1, wherein a vacuum generator is further included, the vacuum generator communicating with the negative pressure inlet and being capable of forming negative pressure in the vacuum cavity through the negative pressure inlet.

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