Feeding device and extraction equipment

Abstract

The utility model discloses a feeding device and extraction equipment, the feeding device is applied to the extraction equipment, and the feeding device comprises a telescopic feeding cylinder, a driving part and a fixing assembly. A first fixing hole is formed in the outer surface of the telescopic feeding cylinder; the driving part is connected with the telescopic feeding cylinder and used for driving the telescopic feeding cylinder to stretch out and draw back; the fixing assembly comprises a fixing guide rail and a fixing part, the fixing guide rail extends in the axial direction of the telescopic feeding cylinder, one end of the fixing guide rail is connected with an extraction tank of the extraction equipment, a second fixing hole is formed in the fixing guide rail, and the fixing part penetrates through the first fixing hole and the second fixing hole at the same time. According to the feeding device, the risk that the telescopic feeding cylinder falls off can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of reaction drug extraction, and in particular to a feeding device and an extraction device. Background Art

[0002] In the process of drug preparation, it is usually necessary to put a variety of raw materials into an extraction device for reaction or decoction. In the extraction device, raw materials are usually put into the extraction tank through a telescopic feeding device. The telescopic feeding cylinder is driven by a driving member to approach the feeding port of the extraction tank, and then the raw materials are fed into the extraction tank through the telescopic feeding cylinder. During the feeding process, the telescopic feeding cylinder is always in a suspended state. Thus, there is a potential safety hazard of the telescopic feeding cylinder falling. Summary of the Utility Model

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a feeding device that can reduce the risk of the telescopic feeding cylinder falling.

[0004] This application also provides an extraction device.

[0005] To achieve the above purpose, the technical solution adopted in this application is as follows:

[0006] The feeding device according to the first aspect embodiment of this application is applied to an extraction device. The feeding device includes: a telescopic feeding cylinder, on the outer surface of which a first fixing hole is opened; a driving member, which is connected to the telescopic feeding cylinder and is used to drive the telescopic feeding cylinder to expand and contract; a fixing component, which includes a fixing guide rail and a fixing member. The fixing guide rail extends along the axial direction of the telescopic feeding cylinder, and one end of the fixing guide rail is connected to the extraction tank of the extraction device. A second fixing hole is opened on the fixing guide rail, and the fixing member passes through the first fixing hole and the second fixing hole at the same time.

[0007] The feeding device of this application has the following advantages:

[0008] In the feeding device of the present application, since the driving member is connected to the telescopic feeding cylinder and the driving member is used to drive the telescopic feeding cylinder to expand and contract, thus, the telescopic feeding cylinder can be driven by the driving member to extend so that the telescopic feeding cylinder can approach the extraction tank, and then the telescopic feeding cylinder is used to feed materials into the extraction tank. During the process of the telescopic feeding cylinder expanding and contracting, since the first fixing holes are formed on the outer surface of the telescopic feeding cylinder and the second fixing holes are formed on the fixing guide rail, thus, the first fixing holes and the second fixing holes can be coaxially arranged by the expansion and contraction of the telescopic feeding cylinder, so that the fixing member can pass through the first fixing hole and the second fixing hole at the same time to fix the fixing guide rail and the telescopic feeding cylinder. Also, since one end of the fixing guide rail is connected to the extraction tank of the extraction device, thus, during the feeding process, the telescopic feeding cylinder can be supported by the fixing guide rail to avoid the telescopic feeding cylinder being in a suspended state, thereby reducing the risk of the telescopic feeding cylinder falling and reducing potential safety hazards.

[0009] For the feeding device according to the first aspect embodiment of the present application, the telescopic feeding cylinder includes a telescopic cylinder body, and the driving member is connected to the telescopic cylinder body and is used to drive the telescopic cylinder body to expand and contract.

[0010] For the feeding device according to the first aspect embodiment of the present application, the telescopic feeding cylinder further includes a fixing portion, the fixing portion is connected to the outer surface of the telescopic cylinder body, the second fixing holes are formed on the fixing portion, and the central axis of the second fixing holes is parallel to the central axis of the first fixing holes.

[0011] For the feeding device according to the first aspect embodiment of the present application, the telescopic feeding cylinder further includes a limiting portion, the limiting portion is connected to the outer surface of the telescopic cylinder body, the limiting portion extends along the radial direction of the telescopic cylinder body and abuts against one end of the fixing guide rail.

[0012] For the feeding device according to the first aspect embodiment of the present application, the fixing member is a fixing pin, and the fixing pin passes through the first fixing hole and the second fixing hole at the same time.

[0013] For the feeding device according to the first aspect embodiment of the present application, the feeding device further includes a control component, the control component includes a controller and a sensor, the sensor is electrically connected to the controller, and the sensor is used to detect the position of the fixing member and send the position signal of the fixing member to the controller.

[0014] For the feeding device according to the first aspect embodiment of the present application, the sensor is a photoelectric proximity switch sensor, and the photoelectric proximity switch sensor is arranged close to the fixing member.

[0015] According to the feeding device of the first aspect embodiment of the present application, the control component further includes an alarm, and the alarm is electrically connected to the controller, and the controller is used to issue an alarm instruction to the alarm according to the position signal.

[0016] According to the feeding device of the first aspect embodiment of the present application, the control component further includes a power supply, and the controller, the sensor and the alarm are electrically connected through the power supply.

[0017] According to the extraction device of the second aspect embodiment of the present application, it includes: the feeding device as described above; an extraction tank, and the feeding device is used to feed materials into the extraction tank.

[0018] The extraction device of the present application has the following advantages:

[0019] In the extraction device of the present application, since the feeding device of the present application can reduce the risk of the telescopic feeding cylinder falling, thus, the above-mentioned extraction device can have better safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0021] Figure 1 Shows the structural schematic diagram of the extraction device in the present application;

[0022] Figure 2 Shows the structural schematic diagram of the feeding device in the present application;

[0023] Figure 3 Shows Figure 2 The enlarged structural schematic diagram at A in

[0024] Figure 4 Shows the structural schematic diagram of the control component in the present application.

[0025] MAIN ELEMENT SYMBOL DESCRIPTION:

[0026] 10 - Feeding device;

[0027] 100 - Telescopic feeding cylinder; 110 - First fixing hole; 120 - Telescopic cylinder body; 130 - Fixing part; 140 - Limiting part;

[0028] 200 - Driving part;

[0029] 300 - Fixed component; 310 - Fixed guide rail; 311 - Second fixing hole; 320 - Fastener;

[0030] 400 - Control component; 410 - Sensor; 420 - Alarm; 430 - Power supply;

[0031] 20 - Extraction tank; 21 - Feed inlet. Detailed implementation manners

[0032] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0033] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0035] In the present application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0037] Referring to Figure 1 and Figure 2 As shown, the feeding device 10 involved in the embodiment of this application is applied to an extraction device. The feeding device 10 includes: a telescopic feeding cylinder 100, a driving member 200, and a fixing assembly 300.

[0038] Specifically, a first fixing hole 110 is formed on the outer surface of the telescopic feeding cylinder 100; the driving member 200 is connected to the telescopic feeding cylinder 100, and the driving member 200 is used to drive the telescopic feeding cylinder 100 to expand and contract; the fixing assembly 300 includes a fixing guide rail 310 and a fixing member 320. The fixing guide rail 310 extends along the axial direction of the telescopic feeding cylinder 100, and one end of the fixing guide rail 310 is connected to the extraction tank 20 of the extraction device. A second fixing hole 311 is formed on the fixing guide rail 310, and the fixing member 320 passes through the first fixing hole 110 and the second fixing hole 311 at the same time.

[0039] In the feeding device 10 of this application, since the driving member 200 is connected to the telescopic feeding cylinder 100 and the driving member 200 is used to drive the telescopic feeding cylinder 100 to expand and contract, thus, the telescopic feeding cylinder can be driven to extend by the driving member 200 so that the telescopic feeding cylinder 100 can approach the extraction tank 20, and then feeding can be carried out into the extraction tank 20 through the telescopic feeding cylinder 100. During the process of the telescopic feeding cylinder 100 expanding and contracting, since the first fixing hole 110 is formed on the outer surface of the telescopic feeding cylinder 100 and the second fixing hole 311 is formed on the fixing guide rail 310, thus, the first fixing hole 110 and the second fixing hole 311 can be coaxially arranged by the expansion and contraction of the telescopic feeding cylinder 100, so that the fixing member 320 can pass through the first fixing hole 110 and the second fixing hole 311 at the same time to fix the fixing guide rail 310 and the telescopic feeding cylinder 100 through the fixing member 320. Also, since one end of the fixing guide rail 310 is connected to the extraction tank 20 of the extraction device, thus, during the feeding process, the telescopic feeding cylinder 100 can be supported by the fixing guide rail 310 to prevent the telescopic feeding cylinder 100 from being in a suspended state, thereby reducing the risk of the telescopic feeding cylinder 100 falling and reducing potential safety hazards.

[0040] Referring to Figure 2and Figure 3 As shown in Figure 3 , the telescopic feeding cylinder 100 includes a telescopic cylinder body 120. The driving member 200 is connected to the telescopic cylinder body 120 and is used to drive the telescopic cylinder body 120 to expand and contract.

[0041] Specifically, the telescopic cylinder body 120 has a hollow structure. During feeding, the material enters the extraction tank 20 through the central control channel of the telescopic cylinder body 120.

[0042] In this embodiment, since the driving member 200 is connected to the telescopic cylinder body 120 and is used to drive the telescopic cylinder body 120 to expand and contract, in this way, the telescopic cylinder body 120 can be driven by the driving member 200 to extend, so that the telescopic cylinder body 120 can approach the extraction tank 20, and thus the material can be fed into the extraction tank 20 through the telescopic cylinder body 120.

[0043] Referring to Figure 3 As shown in Figure 3 , the telescopic feeding cylinder 100 further includes a fixing part 130. The fixing part 130 is connected to the outer surface of the telescopic cylinder body 120. The second fixing hole 311 is opened on the fixing part 130, and the central axis of the second fixing hole 311 is parallel to the central axis of the first fixing hole 110.

[0044] In this embodiment, since the second fixing hole 311 is opened on the fixing part 130 and the central axis of the second fixing hole 311 is parallel to the central axis of the first fixing hole 110, in this way, when the first fixing hole 110 is communicated with the second fixing hole 311, the first fixing hole 110 and the second fixing hole 311 can be coaxially arranged, so that the fixing member 320 can pass through the first fixing hole 110 and the second fixing hole 311 at the same time, and thus the connection between the fixed guide rail 310 and the fixing part 130 can be realized through the fixing member 320. Further, since the fixing part 130 is connected to the outer surface of the telescopic cylinder body 120, in this way, the connection between the fixed guide rail 310 and the telescopic feeding cylinder 100 can be realized through the fixing member 320, so as to support the telescopic feeding cylinder 100 through the fixed guide rail 310.

[0045] Specifically, in this embodiment, the central axes of the first fixing hole 110 and the second fixing hole 311 both extend along the radial direction of the telescopic cylinder body 120. In this way, when the fixing member 320 passes through the first fixing hole 110 and the second fixing hole 311 at the same time, the fixing member 320 can be arranged along the radial direction of the telescopic cylinder body 120, so that the fixing member 320 abuts against the hole walls of the first fixing hole 110 and the second fixing hole 311, thereby preventing the telescopic cylinder body 120 from moving axially along the telescopic cylinder body 120 relative to the fixed guide rail 310, so as to realize the fixation of the telescopic cylinder body 120.

[0046] Referring to Figure 2As shown, the telescopic feeding cylinder 100 further includes a limiting portion 140. The limiting portion 140 is connected to the outer surface of the telescopic cylinder body 120. The limiting portion 140 extends along the radial direction of the telescopic cylinder body 120 and abuts against one end of the fixed guide rail 310.

[0047] Specifically, in this embodiment, the limiting portion 140 is arranged near the end of the fixed guide rail 310 away from the extraction tank 20.

[0048] In this embodiment, since the limiting portion 140 extends along the radial direction of the telescopic cylinder body 120, thus, when the telescopic cylinder body 120 expands and contracts, the limiting portion 140 can abut against the fixed guide rail 310. When the limiting portion 140 abuts against the fixed guide rail 310, the telescopic cylinder body 120 can no longer expand and contract. Therefore, the expansion and contraction distance of the telescopic cylinder body 120 can be limited by the limiting portion 140, so as to avoid large-scale expansion and contraction actions of the telescopic cylinder body 120 driven by the driving member 200, avoid collision between the telescopic cylinder body 120 and the extraction tank 20, and avoid damage to the extraction tank 20.

[0049] Refer to Figure 3 As shown, the fixing member 320 is a fixing pin, and the fixing pin passes through the first fixing hole 110 and the second fixing hole 311 at the same time.

[0050] In this embodiment, when the first fixing hole 110 and the second fixing hole 311 are coaxially arranged, the fixing pin can pass through the first fixing hole 110 and the second fixing hole 311 at the same time, so as to realize the fixed connection between the fixed guide rail 310 and the telescopic feeding cylinder 100 through the fixing pin, facilitating the subsequent feeding work. After the feeding is completed, the fixing pin can be pulled out from the first fixing hole 110 and the second fixing hole 311, so that the fixed guide rail 310 can be disconnected from the telescopic feeding cylinder 100, facilitating the cleaning or replacement of the telescopic feeding cylinder 100.

[0051] Refer to Figure 1 As shown, the feeding device 10 further includes a control component 400. The control component 400 includes a controller and a sensor 410. The sensor 410 is electrically connected to the controller, and the sensor 410 is used to detect the position of the fixing member 320 and send the position signal of the fixing member 320 to the controller.

[0052] In this embodiment, the sensor 410 is used to detect the location of the fixing member 320 and send a position signal of the fixing member 320 to the controller, so as to determine whether the fixing member 320 is simultaneously inserted into the first fixing hole 110 and the second fixing hole 311. When the sensor 410 detects that the fixing member 320 is not simultaneously inserted into the first fixing hole 110 and the second fixing hole 311, the controller will send a signal to the operator according to the position signal of the fixing member 320 sent by the sensor 410, so that the operator can readjust the position of the fixing member 320, so that the fixing member 320 can be simultaneously inserted into the first fixing hole 110 and the second fixing hole 311, thereby improving the connection reliability between the fixing member 320, the fixing guide rail 310 and the telescopic feeding cylinder 100.

[0053] Refer to Figure 4 As shown, the sensor 410 is a photoelectric proximity switch inductor, and the photoelectric proximity switch inductor is arranged close to the fixing member 320.

[0054] It should be noted that the working principle of the photoelectric proximity switch inductor is mainly based on the photoelectric effect. The detection of the reflected light of the object is realized through the built-in photoelectric emitter and receiver. The photoelectric emitter emits light rays of a specific wavelength. After being focused by the lens system, these light rays irradiate the detection area at a certain angle. When the object to be detected enters the detection area, part of the light rays will be reflected by the surface of the object. The reflected light is received by the photoelectric receiver through the same lens system. The photoelectric receiver contains a photoelectric conversion element inside, which can convert the received optical signal into an electrical signal. When the intensity of the reflected light is large enough, the photoelectric conversion element will generate an obvious electrical signal output. After being processed by the internal circuit, this signal will trigger the switch action and output a switch signal.

[0055] Specifically, the photoelectric proximity switch sensor includes a transmissive photoelectric proximity switch sensor and a reflective photoelectric proximity switch sensor. In the transmissive photoelectric proximity switch sensor, there are a transmitter and a receiver. When the fixing member 320 passes through the first fixing hole 110 and the second fixing hole 311 at the same time, the light emitted by the transmitter will be blocked by the fixing member 320. At this time, the receiver cannot receive the light, and the photoelectric proximity switch sensor is in the off state. When the fixing member 320 does not pass through the first fixing hole 110 and the second fixing hole 311 at the same time, the light emitted by the transmitter will not be blocked by the fixing member 320. At this time, the receiver can receive the light, and the photoelectric proximity switch sensor is in the on state, and then the photoelectric proximity switch sensor can send a signal to the controller. In the reflective photoelectric proximity switch sensor, the transmitter generates an infrared beam with a fixed direction and angle. This beam of light irradiates onto the reflecting surface, and the reflecting surface reflects the received light back into the receiver. When the fixing member 320 passes through the first fixing hole 110 and the second fixing hole 311 at the same time, the light emitted by the transmitter will be blocked by the fixing member 320. At this time, the light cannot be reflected back into the receiver through the reflecting surface, and the photoelectric proximity switch sensor is in the off state. When the fixing member 320 does not pass through the first fixing hole 110 and the second fixing hole 311 at the same time, the light emitted by the transmitter will not be blocked by the fixing member 320. At this time, the light can be reflected back into the receiver through the reflecting surface, and the photoelectric proximity switch sensor is in the on state, and then the photoelectric proximity switch sensor can send a signal to the controller.

[0056] In this embodiment, it is possible to detect whether it passes through the first fixing hole 110 and the second fixing hole 311 at the same time through the photoelectric proximity switch sensor. When the photoelectric proximity switch sensor detects that the fixing member 320 does not pass through the first fixing hole 110 and the second fixing hole 311 at the same time, the photoelectric proximity switch sensor will be in the on state and can send a signal to the controller. The controller sends a signal to the operator according to the position signal of the fixing member 320 sent by the photoelectric proximity switch sensor, so that the operator can readjust the position of the fixing member 320, so that the fixing member 320 can pass through the first fixing hole 110 and the second fixing hole 311 at the same time, thereby improving the connection reliability between the fixing member 320, the fixing guide rail 310 and the telescopic feeding cylinder 100.

[0057] Continue to refer to Figure 4 As shown, the control component 400 further includes an alarm 420. The alarm 420 is electrically connected to the controller, and the controller is used to send an alarm instruction to the alarm 420 according to the position signal.

[0058] In this embodiment, when the sensor 410 detects that the fixing member 320 is not simultaneously passing through the first fixing hole 110 and the second fixing hole 311, the controller will send an alarm instruction to the alarm 420 according to the position signal of the fixing member 320 sent by the sensor 410, so that the alarm 420 can emit an alarm signal. When the operator hears or sees the alarm signal, the operator can know that the fixing member 320 is not installed in place. In this way, the operator can re-adjust the position of the fixing member 320 so that the fixing member 320 can simultaneously pass through the first fixing hole 110 and the second fixing hole 311, thereby improving the connection reliability between the fixing member 320, the fixing guide rail 310, and the telescopic feeding cylinder 100.

[0059] Continue to refer to Figure 4 As shown, the control assembly 400 further includes a power supply 430, and the controller, the sensor 410, and the alarm 420 are electrically connected through the power supply 430.

[0060] In this embodiment, the power supply 430 can simultaneously supply electrical energy to the controller, the sensor 410, and the alarm 420, so that the control assembly 400 can make an accurate judgment to facilitate the operator to determine whether the fixing member 320 is installed in place.

[0061] Refer to Figure 1 As shown, the extraction device according to the embodiment of the present application includes: the above-mentioned feeding device 10 and the extraction tank 20.

[0062] Specifically, the feeding device 10 is used to feed materials into the extraction tank 20.

[0063] In the extraction device of the present application, since the feeding device 10 of the present application can reduce the risk of the telescopic feeding cylinder 100 falling, in this way, the above-mentioned extraction device can have better safety performance.

[0064] Specifically, the extraction tank 20 is provided with a feed inlet 21, and the telescopic feeding cylinder 100 can be extended by the driving of the driving member 200 to approach the feed inlet 21, or enter the extraction tank 20 through the feed inlet 21 to achieve feeding of the extraction tank 20.

[0065] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A feeding device, characterized in that, Applied to an extraction device, the feeding device includes: A telescopic feeding cylinder, on the outer surface of which a first fixing hole is provided; A driving member, which is connected to the telescopic feeding cylinder and is used to drive the telescopic feeding cylinder to expand and contract; A fixing assembly, which includes a fixing guide rail and a fixing member. The fixing guide rail extends along the axial direction of the telescopic feeding cylinder, and one end of the fixing guide rail is connected to the extraction tank of the extraction device. A second fixing hole is provided on the fixing guide rail, and the fixing member passes through the first fixing hole and the second fixing hole at the same time.

2. The feeding device according to claim 1, characterized in that, The telescopic feeding cylinder includes a telescopic cylinder body, and the driving member is connected to the telescopic cylinder body and is used to drive the telescopic cylinder body to expand and contract.

3. The feeding device according to claim 2, characterized in that, The telescopic feeding cylinder further includes a fixing part, which is connected to the outer surface of the telescopic cylinder body. The second fixing hole is provided on the fixing part, and the central axis of the second fixing hole is parallel to the central axis of the first fixing hole.

4. The feeding device according to claim 2, characterized in that, The telescopic feeding cylinder further includes a limiting part, which is connected to the outer surface of the telescopic cylinder body. The limiting part extends along the radial direction of the telescopic cylinder body and abuts against one end of the fixing guide rail.

5. The feeding device according to any one of claims 1-4, characterized in that The fixing member is a fixing pin, and the fixing pin passes through the first fixing hole and the second fixing hole at the same time.

6. The feeding device according to any one of claims 1-4, characterized in that, The feeding device further includes a control assembly, which includes a controller and a sensor. The sensor is electrically connected to the controller, and the sensor is used to detect the position of the fixing member and send the position signal of the fixing member to the controller.

7. The feeding device according to claim 6, characterized in that, The sensor is a photoelectric proximity switch sensor, and the photoelectric proximity switch sensor is arranged close to the fixing member.

8. The feeding device according to claim 6, characterized in that, The control assembly further includes an alarm, and the alarm is electrically connected to the controller. The controller is used to send an alarm instruction to the alarm according to the position signal.

9. The feeding device according to claim 8, characterized in that, The control assembly further includes a power supply, and the controller, the sensor and the alarm are electrically connected through the power supply.

10. An extraction device, characterized in that, Including: The feeding device according to any one of claims 1-9; An extraction tank, and the feeding device is used to feed materials into the extraction tank.

Images