Automatic feeding device

By designing an automatic feeding device, the sterilization chamber and the addition chamber work together to achieve automatic delivery of the starter culture, solving the problem of uncontrollable starter culture addition caused by manual operation, and improving the controllability of the yogurt fermentation process and product consistency.

CN223687033UActive Publication Date: 2025-12-19INNER MONGOLIA YILI IND GROUP CO LTD
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Patent Information

Application Number
CN202520340218.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2025-12-19
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

The existing technology cannot effectively solve the following technical problem: In the process of room temperature yogurt fermentation, the existing technology cannot effectively solve the problem that during the process of adding bacteria, the increase of uncontrollable factors due to human operation may lead to the introduction of other environmental microorganisms, which may affect the consistency of product flavor.

Method used

An automatic feeding device was designed, including a disinfection chamber and a feeding chamber, equipped with a conveying device, a disinfection device, a bag cutting device, a robotic arm, and an automatic cap opening and closing device. Through the coordinated action of disinfection, bag cutting, and the robotic arm, the automatic delivery of microbial inoculum is achieved, reducing human interference.

Benefits of technology

This significantly reduces human interference during the inoculation process, lowers the risk of flavor differences in yogurt after fermentation, and improves operational controllability and product consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic feeding device which comprises a sterilizing chamber and an adding chamber, a conveying device used for conveying material bags and a sterilizing device used for sterilizing the material bags are arranged in the sterilizing chamber, and a laminar flow cover, a bag cutting device, a mechanical arm and an automatic opening and closing cover are arranged in the adding chamber. A material adding opening is formed in the bottom of the adding chamber; the laminar flow cover is arranged at the top of the adding chamber, the bag cutting device can cut bag corners of the material bags, and the automatic opening and closing cover is arranged at the material adding opening in an opening and closing mode; the mechanical arm can transfer the material bags on the conveying device to the bag cutting device and can transfer the cut material bags to the position of the material adding opening so as to deliver materials. According to the utility model, human factor interference in the material delivery process can be greatly reduced.
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Description

TECHNICAL FIELD

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

[0002] At present, in the fermentation process of normal temperature yoghurt, the base material is sterilized and then conveyed to the fermentation tank, and the strain needs to be added on line, and after the strain delivery is completed, the fermentation starts after the fermentation tank is stirred uniformly. However, in the process of on-line strain addition operation, it is mainly completed by manual operation of alcohol, scissors and dust-free gauze in the hundred-level laminar hood, and in the process of standardized operation, it is affected by the level of the operator, which increases the uncontrollable risk of the process, and other environmental microorganisms may be mixed in the strain addition process and participate in the fermentation process, which will cause differences in the flavor of the product in the later period. SUMMARY

[0003] The utility model discloses a kind of automatic feeding devices, can substantially reduce the human factor interference of material delivery process.

[0004] The utility model discloses a kind of automatic feeding devices, which is realized as follows: a sterilization chamber and an addition chamber are provided, a conveying device for conveying material bags and a sterilization device for sterilizing the material bags are arranged in the sterilization chamber, a laminar hood, a bag cutting device, a robot and an automatic opening and closing cover are arranged in the addition chamber, and a material addition port is arranged at the bottom of the addition chamber;The laminar hood is arranged at the top of the addition chamber, the bag cutting device can cut the corners of the material bags, and the automatic opening and closing cover is arranged at the material addition port in an openable and closable manner;The robot can transfer the material bags on the conveying device to the bag cutting device and transfer the cut material bags to the position of the material addition port to deliver the material.

[0005] In a preferred embodiment of the utility model, outer and inner door structures that can be opened and closed are arranged on the sterilization chamber, and the inner door structure can communicate the sterilization chamber and the addition chamber when it is in an open state.

[0006] In a preferred embodiment of the utility model, the conveying device includes two groups of belt conveying structures, the two groups of belts of the two groups of belt conveying structures are arranged obliquely and enclosed to form a V-shaped space, a plurality of protrusions are arranged on each group of belts at intervals along the conveying direction, the protrusions on the two groups of belts are arranged symmetrically, and the two symmetrically arranged protrusions are used to clamp the material bags.

[0007] In a preferred embodiment of the utility model, the sterilization device includes a sterilizing agent storage barrel, a pump device and at least two spray heads, the pump device is connected to the sterilizing agent storage barrel and the spray heads through corresponding pipelines, and the spray heads can extend into the V-shaped space and spray the sterilizing agent on the material bags.

[0008] In a preferred embodiment of the present application, the conveying device comprises a rotating cage and a driving mechanism, the driving mechanism is connected with the rotating cage and can drive the rotating cage to lift, horizontally move and / or rotate, a plurality of clamping mechanisms are arranged on the rotating cage in a circumferential direction, and the clamping mechanisms are used for clamping the material bags.

[0009] In a preferred embodiment of the present application, the sterilizing device comprises a sterilizing tank with an openable and closable notch, the sterilizing tank is arranged at the bottom of the sterilizing chamber, and the driving mechanism can drive the rotating cage to descend into the sterilizing tank.

[0010] In a preferred embodiment of the present application, the bag cutting device comprises a driving structure and scissors, the driving structure is connected with the scissors and can drive the scissors to open and close to cut the material bag.

[0011] In a preferred embodiment of the present application, a waste bag box is further arranged in the adding chamber.

[0012] In a preferred embodiment of the present application, an ultraviolet lamp sterilization device is further arranged at the top of the adding chamber.

[0013] In a preferred embodiment of the present application, the automatic material adding device further comprises a control device, and the control device is electrically connected with the conveying device, the sterilizing device, the laminar flow hood, the bag cutting device, the mechanical arm, the automatic opening and closing cover, the outer door structure and the inner door structure.

[0014] As described above, the automatic material adding device can sterilize the material bag in the sterilizing chamber, then the mechanical arm clamps the material bag and enters the adding chamber, the bag corner is cut by the bag cutting device in the adding chamber, then the automatic opening and closing cover is opened, the mechanical arm moves the cut material bag to the above of the material adding port, the cut opening of the material bag is opposite to the material adding port, and the material delivery can be completed, the product differentiation caused by human factor interference in the material delivery process can be greatly reduced, for example, when the bacteria are added to the yogurt product, the bad consequences such as flavor difference of the yogurt after fermentation caused by human factor interference in the bacteria delivery process can be greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The following drawings are only intended to schematically illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0016] Figure 1 A structure schematic view of the automatic material adding device provided by the present application.

[0017] Figure 2 Another structure schematic view of the automatic material adding device provided by the present application.

[0018] Explanation of reference numerals:

[0019] 100, sterilization chamber;

[0020] 101, conveying device; 1011, belt conveying structure; 1012, rotating cage; 1013, moving slide rail;

[0021] 102, sterilization device; 1021, sterilization agent storage barrel; 1022, pump device; 1023, spray head; 1024, sterilization tank;

[0022] 103, outer door structure; 104, inner door structure;

[0023] 200, adding chamber;

[0024] 201, bag cutting device; 2011, driving structure; 2012, scissors;

[0025] 202, mechanical hand;

[0026] 203, automatic opening and closing cover; 204, connecting cylinder;

[0027] 205, waste bag box; 206, laminar flow cover; 207, ultraviolet lamp sterilization device;

[0028] 300, material bag. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings.

[0030] As shown in Figure 1 and Figure 2 , the present embodiment provides an automatic feeding device, which comprises a sterilization chamber 100 and an adding chamber 200, wherein the sterilization chamber 100 is provided with a conveying device 101 for conveying material bags 300 and a sterilization device 102 for sterilizing the material bags 300, the adding chamber 200 is provided with a laminar flow cover 206, a bag cutting device 201, a mechanical hand 202 and an automatic opening and closing cover 203, and the bottom of the adding chamber 200 is provided with a material adding port; the laminar flow cover 206 is arranged at the top of the adding chamber 200, the bag cutting device 201 can cut the corners of the material bags 300, and the automatic opening and closing cover 203 can be arranged at the material adding port in an openable and closable manner; the mechanical hand 202 can transfer the material bags 300 on the conveying device 101 to the bag cutting device 201, and can transfer the cut material bags 300 to the position of the material adding port to deliver the material.

[0031] Therefore, the automatic feeding device in the embodiment can sterilize the material bag 300 in the sterilization chamber 100, and then the manipulator 202 clamps the material bag 300 and enters the adding chamber 200, the bag corner of the material bag 300 is cut by the bag cutting device 201, then the automatic cover 203 is opened, the manipulator 202 moves the cut material bag 300 to the top of the material adding port, turns over the material bag 300, and makes the cut opening of the material bag 300 face the material adding port, so that the material delivery is completed, and the product differentiation caused by human factor interference in the material delivery process can be greatly reduced. For example, when the bacteria for adding yogurt products are added, the flavor difference of the yogurt after fermentation caused by human factor interference in the bacteria delivery process can be greatly reduced.

[0032] In the specific implementation mode, the outer door structure 103 and the inner door structure 104 which can be opened and closed are arranged on the sterilization chamber 100, and the inner door structure 104 can communicate the sterilization chamber 100 and the adding chamber 200 in the opened state.

[0033] The sterilization chamber 100 is arranged on one side of the adding chamber 200 and closely arranged, the outer door structure 103 and the inner door structure 104 are located at both ends of the sterilization chamber 100 along the material horizontal conveying direction, and the end face of the sterilization chamber 100 provided with the inner door structure 104 can share the same wall surface with the adding chamber 200. In use, the outer door structure 103 is first opened, the operator can manually or by using other mechanical structure to place the material bag 300 on the conveying device 101, then the outer door structure 103 is closed, the sterilization device 102 sterilizes the material bag 300, then the inner door structure 104 is opened, the manipulator 202 extends into the sterilization chamber 100 to clamp the material bag 300 and transfers to the bag cutting device 201 for cutting.

[0034] Preferably, the outer door structure 103 and the inner door structure 104 constitute interlocking doors, when one of the door structures is opened, the other door structure needs to be in the closed state, which can more effectively ensure the safety.

[0035] Further, the bag cutting device 201 includes a driving structure 2011 and a scissors 2012, the driving structure 2011 is connected with the scissors 2012 and can drive the scissors 2012 to open and close to cut the material bag 300.

[0036] The bag cutting device 201 is mainly used for cutting the opening of the material bag 300. The driving structure 2011 can be arranged in the adding chamber 200, and a pneumatic driving structure such as a pneumatic cylinder can be used, and the scissors 2012 can be a pneumatic scissors, and the pneumatic driving structure can drive the pneumatic scissors to open and close to cut the bag corner of the material bag 300.

[0037] Generally, a waste bag box 205 is also arranged in the adding chamber 200. After the manipulator 202 clamps the material bag 300 and moves to the position of the material adding port to deliver the material, the manipulator 202 can deliver the empty material bag after delivery into the waste bag box 205. The waste bag box 205 can be placed directly below the bag cutting device 201, and after the bag cutting device 201 cuts the bag corner of the material bag 300, the cut bag corner can fall into the waste bag box 205.

[0038] The manipulator 202 is mainly used to complete the clamping, moving, material delivery and processing of the material bag 300 after delivery. The end of the manipulator 202 has a clamping jaw for clamping the material bag 300, and the manipulator 202 also includes a multi-degree-of-freedom manipulator arm, and the clamping jaw is rotatably arranged at the end of the multi-degree-of-freedom manipulator arm. The manipulator 202 can flexibly adjust the posture of the material bag 300 and flexibly transfer the material bag 300. The specific structure of the manipulator 202 can be realized by any existing manner, which will not be described here.

[0039] The material bag 300 is generally a rectangular bag. In actual operation, when the manipulator 202 transfers the material bag 300 to the bag cutting device 201, the manipulator 202 can first adjust the posture of the material bag 300 to make the material bag 300 inclined, and then drive the scissors 2012 to act to cut the bag corner of the material bag 300 obliquely. Alternatively, the scissors 2012 can be placed obliquely during installation, and after the manipulator 202 transfers the material bag 300 to the bag cutting device 201 in a vertical posture (a posture in which the length direction of the rectangular bag is vertically placed), the scissors 2012 can be driven by the cylinder to act to cut the bag corner obliquely.

[0040] The automatic opening and closing cover 203 is mainly used to complete the opening and closing action of the material adding port. The automatic opening and closing cover 203 includes a cover body arranged at the top end of the material adding port and an opening and closing driving mechanism capable of driving the cover body to open and close. In use, the bottom end of the material adding port is connected to the base material pipeline. After the bag corner is cut by the bag cutting device 201, the opening and closing driving mechanism drives the cover body to open, the manipulator 202 moves the cut material bag 300 to the top of the material adding port, the manipulator 202 turns over the material bag 300 to make the cut port of the material bag 300 face the material adding port, and the material in the material bag 300 is delivered into the material adding port through the cut port, and then added into the base material through the base material pipeline. Since the automatic opening and closing cover 203 and part of the base material pipeline are in the laminar flow cover 206, they will not contact the external air, and the delivery environment can be guaranteed.

[0041] In an optional embodiment, a connecting cylinder 204 capable of communicating with the bottom surface of the adding chamber 200 is arranged at the bottom of the adding chamber 200, and the channel in the connecting cylinder 204 constitutes the material adding port, and the top end and the bottom end of the connecting cylinder 204 constitute the top end and the bottom end of the material adding port, respectively.

[0042] The laminar flow hood 206 is preferably a hundred-level laminar flow hood, and is mainly used for maintaining the environment during the inoculum delivery process. The laminar flow hood 206 is a device that is closed at the periphery and the top, is arranged at the top of the addition chamber 200, and is in communication with the addition chamber 200. The specific structure of the laminar flow hood 206 is prior art. The laminar flow hood 206 is opened in advance before the material is delivered, and the cleanliness of the addition chamber 200 can be ensured during the material delivery process, thereby preventing external pollution.

[0043] According to the need, an ultraviolet lamp sterilization device 207 can also be arranged at the top of the addition chamber 200. The ultraviolet lamp sterilization device 207 can be arranged at the bottom of the laminar flow hood 206, and can use ultraviolet rays for sterilization and disinfection, thereby further ensuring the environment in the addition chamber 200.

[0044] Further, the automatic feeding device further comprises a control device, which is electrically connected with the conveying device 101, the sterilization device 102, the laminar flow hood 206, the bag cutting device 201, the mechanical arm 202, the automatic opening and closing cover 203, the outer door structure 103, and the inner door structure 104.

[0045] The control device is electrically connected with the fan in the laminar flow hood 206, the pneumatic driving structure in the bag cutting device 201, the driving components of the mechanical arm 202, and the opening and closing driving mechanism of the automatic opening and closing cover 203, so as to control the actions of the devices, respectively. The control device can be a PLC controller, and can further realize full-automatic control, thereby improving the automation, stability, and reliability of the system. According to the need, a sensor (such as a visual sensor or a position sensor) can also be arranged near the cutting station in the addition chamber 200, and the control device is also electrically connected with the sensor. When the mechanical arm 202 clamps the material bag 300 and moves to the cutting station, the control device drives the bag cutting device 201 to act, so as to cut the bag corner of the material bag 300.

[0046] Further, the conveying device 101 and the sterilization device 102 can be realized by the following two schemes:

[0047] The first scheme is as follows: Figure 1 The conveying device 101 comprises two groups of belt conveying structures 1011. The two groups of belts of the two groups of belt conveying structures 1011 are arranged obliquely and are enclosed to form a V-shaped space. A plurality of protrusions are arranged on each group of belts along the conveying direction. The protrusions on the two groups of belts are symmetrically arranged, and the two symmetrically arranged protrusions are used for clamping the material bag 300.

[0048] The sterilization device 102 comprises a sterilizing agent storage barrel 1021, a pump device 1022, and at least two spray heads 1023. The pump device 1022 is connected with the sterilizing agent storage barrel 1021 and the spray heads 1023 through corresponding pipelines. The spray heads 1023 can extend into the V-shaped space and can spray the sterilizing agent on the material bag 300.

[0049] The conveying device 101 is mainly used for clamping and conveying the material bag 300. Each set of belt conveying structure 1011 includes a belt, a transmission wheel and a driving member. The driving member drives the transmission wheel to rotate and then drives the belt to move. The conveying direction of each set of belt conveying structure 1011 is arranged along the above-mentioned material horizontal conveying direction. The plurality of protrusions on the two sets of belts are symmetrically arranged relative to the material horizontal conveying direction. The two symmetric protrusions in the two sets of belts can clamp the material bag 300, so that the material bag 300 maintains an upright posture and is then conveyed from a position close to the outer door structure 103 to a position close to the inner door structure 104 by the movement of the belt.

[0050] According to needs, an adjusting driving mechanism can also be provided. The adjusting driving mechanism is used to drive one of the belt conveying structures 1011 to move along a horizontal direction perpendicular to the material horizontal conveying direction, so as to adjust the interval of the V-shaped space and the distance between the two symmetrically arranged protrusions, so as to adapt to clamping and conveying material bags 300 of different thicknesses.

[0051] The disinfecting device 102 is mainly used for quantitatively spraying disinfectant to complete the all-round disinfection of the material bag 300. Generally, the disinfecting device 102 includes a plurality of sets of spraying assemblies arranged at intervals along the material horizontal conveying direction. Each set of spraying assembly includes two spraying heads 1023 symmetrically arranged relative to the material horizontal conveying direction, so as to spray disinfectant to the two sides of the material bag 300 to disinfect. The pump device 1022 can be, for example, a peristaltic pump. The disinfectant storage barrel 1021 and the pump device 1022 can be arranged outside the disinfection chamber 100 or inside the disinfection chamber 100. In the embodiment, the disinfectant storage barrel 1021 and the pump device 1022 are arranged outside the disinfection chamber 100. Figure 1 The disinfectant storage barrel 1021 and the pump device 1022 are arranged outside the disinfection chamber 100.

[0052] The above-mentioned control device is electrically connected with the driving member of each set of belt conveying structure 1011 in the conveying device 101 and the pump device 1022 in the disinfecting device 102. An electric eye structure (for example, a visual sensor or a position sensor) can also be arranged on the belt conveying structure 1011, so as to facilitate triggering automatic disinfectant spraying. The control device is electrically connected with the electric eye structure and can start the pump device 1022 to start disinfectant spraying operation after the material bag 300 reaches a specified position.

[0053] Taking the material bag 300 as a bacterial strain bag, the working process of the first scheme is as follows:

[0054] After the outer door structure 103 opens to place the starter bag into the conveying device 101, the outer door structure 103 is closed, and the starter bag is clamped and conveyed by the two groups of belt conveying structures 1011. After the conveying process triggers the electric eye signal, the sterilization device 102 is started, the sterilization agent is quantitatively conveyed by the peristaltic pump, and the starter bag is sprayed and sterilized in all directions by the spray head 1023. After sterilization, the inner door structure 104 is opened, the starter bag is clamped by the mechanical hand 202 and enters the addition chamber 200 below the laminar hood 206, the starter bag is clamped by the mechanical hand 202 to the bag cutting device 201, and the bag corner of the starter bag is cut open by the pneumatic scissors. At this time, the automatic opening and closing cover 203 performs the opening cover, the mechanical hand 202 clamps the starter bag and rotates to the opening cover delivery starter position (i.e. the material addition port), and the starter is automatically delivered. The empty starter bag after delivery is placed into the waste bag box 205 by the mechanical hand 202. After repeating the specified starter addition according to the size of the ingredient amount, the closing cover action is performed to complete the online delivery of the starter. The laminar hood 206 and the ultraviolet lamp sterilization device 207 can ensure that the environment before and during the delivery of the starter or other materials meets the delivery requirements.

[0055] The second kind is to refer to Figure 2 The conveying device 101 includes a rotating cage 1012 and a driving mechanism. The driving mechanism is connected with the rotating cage 1012 and can drive the rotating cage 1012 to lift, move horizontally and / or rotate. A plurality of clamping mechanisms are arranged circumferentially on the rotating cage 1012, and the clamping mechanisms are used to clamp the material bag 300.

[0056] The sterilization device 102 includes a sterilization tank 1024 with an openable and closable notch. The sterilization tank 1024 is arranged at the bottom of the sterilization chamber 100. The driving mechanism can drive the rotating cage 1012 to descend into the sterilization tank 1024.

[0057] The rotating cage 1012 is a vertical frame structure with a vertical axis, which can rotate around its own axis. The number of clamping mechanisms can be determined according to requirements. For example, in one embodiment, the rotating cage 1012 is an octagonal rotating cage, and eight clamping mechanisms are arranged circumferentially on the rotating cage 1012. A moving slide rail 1013 is further arranged at the top of the sterilization chamber 100. The length direction of the moving slide rail 1013 is arranged along the horizontal conveying direction of the material, so as to move the material bag 300 from a position close to the outer door structure 103 to a position close to the inner door structure 104. The driving mechanism can adopt any form as required, as long as it can conveniently drive the rotating cage 1012 to move horizontally, lift and rotate along the moving slide rail 1013.

[0058] The sterilization device 102 further includes a pump device 1022 (such as a peristaltic pump) and a sterilization agent storage barrel 1021. The pump device 1022 is connected with the sterilization agent storage barrel 1021 and the sterilization tank 1024 through corresponding pipelines, so as to inject the sterilization agent into the sterilization tank 1024. The pump device 1022 and the sterilization agent storage barrel 1021 can be arranged in any form as required, as long as they can conveniently inject the sterilization agent into the sterilization tank 1024.Figure 2 The control device is also electrically connected with the driving mechanism of the conveying device 101 and the pump device 1022 to control the actions of the components.

[0059] Taking the material bag 300 as an example, the working process of the second scheme is as follows:

[0060] The strain bag enters through the outer door structure 103, is vertically placed in the rotating cage frame 1012 in sequence, the rotating cage frame 1012 has a clamping mechanism to ensure the vertical posture of the bag, after being placed, the outer door structure 103 is closed, the inlet (i.e. the slot) of the sterilization tank 1024 with the automatic liquid supplementing function is opened, the rotating cage frame 1012 is lowered to completely immerse the strain bag in 75% alcohol, after a specified process time, the rotating cage frame 1012 is raised to drain for a certain time, and according to the requirement, sterile compressed air can be set to dry; after sterilization, the inlet of the sterilization tank 1024 is closed, the inner door structure 104 is opened, the rotating cage frame 1012 is moved to the inner door structure 104, and the mechanical arm 202 clamps to enter the addition chamber 200 below the laminar flow hood 206, clamps the strain bag to the bag cutting device 201 by the mechanical arm 202, and cuts the bag corner of the strain bag by the pneumatic scissors; at this time, the automatic cover opening and closing device 203 opens the cover, the mechanical arm 202 clamps the strain bag and rotates to the cover opening and delivery position to automatically deliver the strain, and the empty strain bag after delivery is delivered to the waste bag box 205 by the mechanical arm 202, and then the rotating cage frame 1012 rotates to the next station, and the mechanical arm 202 performs the above repeated action; after the specified strain is repeatedly added according to the amount of the material, the cover closing action is performed to complete the online delivery of the strain. The laminar flow hood 206 and the ultraviolet lamp sterilization device 207 ensure that the environment before and during the delivery of the strain or other materials meets the delivery requirements.

[0061] Both the above two schemes can greatly reduce the human factor interference in the process of delivering the strain to the base material, and solve the uncontrollable factors in the existing manual strain delivery process that cause the flavor difference of the yogurt after fermentation.

[0062] Further, the entire automatic material adding device meets the food hygiene design, the metal material in contact with the product is made of 304 and 316 stainless steel, the sealing material is made of EPDM, silicone and Teflon, and the food hygiene and safety are greatly improved.

[0063] The above is only a specific embodiment of the utility model, and is not used to limit the scope of the utility model. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principles of the utility model shall fall within the scope of protection of the utility model.

Claims

1. An automatic charging device, characterized by, The automatic feeding device comprises a sterilization chamber and an adding chamber, a conveying device for conveying material bags and a sterilization device for sterilizing the material bags are arranged in the sterilization chamber, a laminar flow hood, a bag cutting device, a mechanical hand and an automatic opening and closing cover are arranged in the adding chamber, and a material adding port is arranged at the bottom of the adding chamber; The laminar flow hood is arranged at the top of the adding chamber, the bag cutting device can cut the bag corners of the material bags, and the automatic opening and closing cover is arranged at the material adding port in an openable and closable manner; The mechanical hand can transfer the material bags on the conveying device to the bag cutting device and transfer the cut material bags to the position of the material adding port to deliver materials.

2. The automatic feeding device according to claim 1, wherein outer and inner door structures that can be opened and closed are arranged on the sterilization chamber, and the inner door structure can communicate the sterilization chamber and the adding chamber when in an open state.

3. The automatic feeding device according to claim 1, wherein the conveying device comprises two groups of belt conveying structures, two groups of belts of the two groups of belt conveying structures are arranged in a V-shaped space in an inclined manner, a plurality of protrusions are arranged on each group of belts in a spaced manner along the conveying direction, the protrusions on the two groups of belts are arranged in a symmetrical manner, and the two symmetrically arranged protrusions are used for clamping the material bags.

4. The automatic feeding device according to claim 3, wherein the sterilization device comprises a sterilizing agent storage barrel, a pump device and at least two spray heads, the pump device is connected with the sterilizing agent storage barrel and the spray heads through corresponding pipelines, and the spray heads can extend into the V-shaped space and spray sterilizing agent on the material bags.

5. The automatic feeding device according to claim 1, wherein the conveying device comprises a rotating cage and a driving mechanism, the driving mechanism is connected with the rotating cage and can drive the rotating cage to lift, move horizontally and / or rotate, a plurality of clamping mechanisms are arranged on the rotating cage in a circumferential direction, and the clamping mechanisms are used for clamping the material bags.

6. The automatic feeding device according to claim 5, wherein the sterilization device comprises a sterilization tank with an openable and closable slot, the sterilization tank is arranged at the bottom of the sterilization chamber, and the driving mechanism can drive the rotating cage to descend into the sterilization tank.

7. The automatic feeding device according to claim 1, wherein the bag cutting device comprises a driving structure and scissors, the driving structure is connected with the scissors and can drive the scissors to open and close to cut the material bags.

8. The automatic feeding device according to claim 1, wherein a waste bag box is further arranged in the adding chamber.

9. The automatic feeding device according to claim 1, wherein an ultraviolet lamp sterilization device is further arranged at the top of the adding chamber.

10. The automatic feeding device according to claim 2, wherein the automatic feeding device further comprises a control device, and the control device is electrically connected with the conveying device, the sterilization device, the laminar flow hood, the bag cutting device, the mechanical hand, the automatic opening and closing cover, the outer door structure and the inner door structure.