Micro-feeding devices and equipment

Abstract

The invention discloses a micro-feeding device, which relates to a device for adding micro-additives, including a feed box, a disturbance component and a transmission device. A feed cavity is arranged in the feed box, and the disturbance component is arranged in the feed cavity. The disturbance component is used to disturb the material to prevent the material from bridging. A first rotating shaft fixing through hole is arranged on the side wall of the feed box. The input end of the disturbance component passes through the first rotating shaft fixing through hole and is transmission-connected with the transmission device. The transmission device provides rotational power for the disturbance component. A feed port and a discharge port, both of which are connected to the feed cavity, are respectively arranged on the top and bottom of the feed box. The discharge port is used to communicate with the inside of the device. The invention also discloses a device, including a device body and the above micro-feeding device. The device body adds micro-packaged materials through the micro-feeding device, so that the micro-packaged materials can be normally put in, thereby improving industrial production or ensuring the progress of experiments.

Description

Technical Field

[0001] The invention relates to the technical field of trace additive adding equipment, in particular to a trace feeding device and equipment. Background Art

[0002] In industrial production or experimental processes, it is often necessary to add some trace-packaged materials as additives or catalysts. However, due to the light weight of trace-packaged materials, bridging often occurs in the trace-packaged material addition pipeline, causing the trace-packaged materials to be blocked in the equipment and unable to be fed normally, affecting industrial production efficiency or experimental progress. Summary of the invention

[0003] The purpose of the present invention is to provide a micro-feeding device and equipment to solve the problems existing in the above-mentioned prior art, so that micro-packaged materials can be normally fed, improve industrial production or ensure experimental progress.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a micro-feeding device, comprising a feed box, a disturbance component and a transmission device, wherein a feed cavity is arranged in the feed box, the disturbance component is arranged in the feed cavity, the disturbance component is used to disturb the material to prevent the material from bridging, a first rotating shaft fixing through hole is arranged on the side wall of the feed box, the input end of the disturbance component passes through the first rotating shaft fixing through hole and is transmission-connected with the transmission device, the transmission device provides rotational power for the disturbance component, and a feed port and a discharge port, both of which are connected with the feed cavity, are respectively arranged on the top and bottom of the feed box, and the discharge port is used to be connected with the inside of the equipment.

[0006] Preferably, the disturbance assembly includes a rotating shaft and some disturbance disturbance plates, the feed box is a cylindrical box, the feed chamber is a cylindrical feed chamber, the axis of the cylindrical box is horizontally arranged, the first rotating shaft fixing through hole and the second rotating shaft fixing through hole are respectively arranged on the two end surfaces of the cylindrical box, the axis of the cylindrical feed chamber, the axis of the rotating shaft, the axis of the first rotating shaft fixing through hole and the axis of the second rotating shaft fixing through hole all coincide with the axis of the cylindrical box, the middle part of the rotating shaft and one end of the rotating shaft are respectively rotatably connected with the first rotating shaft fixing through hole and the second rotating shaft fixing through hole, the other end of the rotating shaft is coaxially fixedly connected with the transmission device, a plurality of the disturbance plates are evenly distributed side by side along the circumference of the rotating shaft on the rotating shaft between the first rotating shaft fixing through hole and the second rotating shaft fixing through hole, and the feed port and the discharge port are respectively arranged at the top and bottom of the cylindrical wall of the cylindrical box.

[0007] Preferably, the disturbance assembly further comprises a plurality of pairs of inclined plates respectively located on both sides of the disturbance plate, the two inclined plates in each group are symmetrically arranged, and the distance between the two inclined plates gradually increases along the rotation direction of the rotating shaft, the inclined plates located on the same side of the disturbance plate are evenly distributed along the circumference of the rotating shaft, and the inclined plates are used to push the materials located on both sides of the cylindrical feed chamber toward the discharge port.

[0008] Preferably, the cylindrical box includes a cylindrical box body and a transmission end cover and a driven end cover located at both ends of the cylindrical box, the cylindrical box body is open at both ends, the transmission end cover and the driven end cover are respectively detachably connected to the two end openings of the cylindrical box body to close the two end openings of the cylindrical box body, the first rotating shaft fixing through hole and the second rotating shaft fixing through hole are respectively located on the transmission end cover and the driven end cover, and the feed port and the discharge port are respectively arranged at the top and bottom of the cylindrical box body.

[0009] Preferably, it also includes a bearing, a driven end sealing ring and an active end sealing ring, the rotating shaft includes a bearing mating section, a driven end sealing ring mating section, a disturbance plate fixed section and an active end sealing ring mating section which are connected in sequence, the diameters of the bearing mating section, the diameters of the driven end sealing ring mating section and the diameters of the disturbance plate fixed section increase in sequence, the diameter of the driven end sealing ring mating section is equal to the diameter of the active end sealing ring mating section, the disturbance plate and the inclined plate are both fixedly arranged on the disturbance plate fixed section, the driven end cover includes a driven end cover body and a driven end cover cap, the driven end cover body and the driven end cover cap are detachably connected side by side along the axial direction of the rotating shaft, the second rotating shaft fixed through hole includes a bearing through hole and a driven end sealing ring through hole, the bearing through hole and the driven end sealing ring through hole are respectively located on the driven end cover cap and the driven end cover body, the inner ring and the outer ring of the bearing are respectively connected to the bearing mating section The driven end seal ring is in contact with and cooperates with the bearing through hole, the inner ring and the outer ring of the driven end seal ring are respectively in contact with and cooperate with the driven end seal ring cooperation section and the driven end seal ring through hole, the active end cover comprises an active end cover body and an active end cover cap, the active end cover body and the active end cover cap are detachably connected side by side along the axial direction of the rotating shaft, the first rotating shaft fixed through hole comprises an active end seal ring through hole and a rotating shaft through hole, the rotating shaft through hole and the active end seal ring through hole are respectively located on the active end cover cap and the active end cover body, the active end seal ring cooperation section is rotatably cooperated with the inner ring of the active end seal ring and the rotating shaft through hole, the outer ring of the active end seal ring is in contact with and cooperates with the active end seal ring through hole, an active end seal ring limiting ring is provided at one end of the active end seal ring through hole close to the disturbance plate, and a driven end seal ring limiting ring is provided at one end of the driven end seal ring through hole close to the disturbance plate.

[0010] Preferably, it also includes a closing cover, which closes one end opening of the bearing through hole, and the end face of the closing cover contacts the outer ring of the bearing. A fixing frame is provided on the side of the active end cover away from the cylindrical box body, and the transmission device is detachably connected to the fixing frame.

[0011] Preferably, the discharge port is detachably connected to a discharge device, a perforated plate is inserted in the discharge device, and the perforated plate is used to control the storage speed.

[0012] Preferably, sealing gaskets are provided between the driven end cover cap and the driven end cover body, between the driven end cover body and the cylindrical box body, and between the driving end cover body and the cylindrical box body.

[0013] Preferably, the driven end cover cap and the driven end cover body, the driven end cover body and the cylindrical box body, the active end cover body and the cylindrical box body, the discharging device and the discharging port, the active end cover cap and the active end cover body, and the transmission device and the fixing frame are all screwed together by bolts.

[0014] The present invention further provides a device, comprising a device body and the micro-feeding device as described above, wherein the device body is added with micro-packaged substances through the micro-feeding device.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The present invention provides a micro-feeding device and equipment, which adopts a disturbance component arranged in a feeding chamber and provides power through a transmission device to prevent the material in the feeding box from bridging, so that the micro-packaged material can be normally fed, thereby improving industrial production or ensuring the progress of experiments.

[0017] Furthermore, the feed chamber is a cylindrical feed chamber, and the disturbance component includes a rotating shaft and some disturbance disturbance plates, which has a simple structure, few components and low cost.

[0018] Furthermore, the provision of the inclined plate can facilitate the movement of materials on both sides of the cylindrical feed cavity toward the discharge port, thereby avoiding squeezing of materials on both sides of the cylindrical feed cavity and affecting the feeding of the materials.

[0019] Furthermore, the cylindrical box includes a cylindrical box body, a driving end cover and a driven end cover, which are detachably connected to each other, so as to facilitate the installation, repair and maintenance of the disturbance component.

[0020] Furthermore, the setting of the bearing can reduce the friction resistance between the rotating shaft and the driven end cover; the setting of the driven end sealing ring and the active end sealing ring can prevent external dust and other impurities from entering the feed chamber; the setting of the active end sealing ring limiting ring can prevent the active end sealing ring from entering the feed chamber; the setting of the driven end sealing ring limiting ring can prevent the driven end sealing ring from entering the feed chamber.

[0021] Furthermore, the setting of the closing cover can close the opening at one end of the bearing through hole to prevent dust from entering the interior of the bearing, increase the rotational resistance of the bearing, limit the bearing, and withstand the positive pressure of the rotating shaft.

[0022] Furthermore, the setting of the storage device can control the discharging speed.

[0023] Furthermore, the provision of the sealing gasket can improve the sealing performance of the entire micro-feeding device.

[0024] Furthermore, the driven end cover cap and the driven end cover body, the driven end cover body and the cylindrical box body, the active end cover body and the cylindrical box body, the discharge device and the discharge port, the active end cover cap and the active end cover body and the transmission device and the fixing frame are all screwed together by bolts, and the connection method is simple, effective and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A micro-feeding device provided in Example 1;

[0027] In the figure: 1-transmission device, 2-feeding port, 3-discharging port, 4-disturbance plate, 5-inclined plate, 6-cylindrical box body, 7-bearing, 8-driven end sealing ring, 9-driving end sealing ring, 10-bearing matching section, 11-driven end sealing ring matching section, 12-disturbance plate fixing section, 13-driving end sealing ring matching section, 14-driven end cover body, 15-driven end cover cap, 16-driving end cover body, 17-driving end cover cap, 18-closing cover, 19-discharging device, 20-bearing through hole, 21-driven end sealing ring through hole, 22-driving end sealing ring through hole, 23-rotating shaft through hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a micro-feeding device and equipment to solve the problems existing in the prior art, so that micro-packaged materials can be normally fed, improve industrial production or ensure experimental progress.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1

[0032] This embodiment provides a micro-feeding device, such as Figure 1 As shown, in this embodiment, the micro-feeding device includes a feed box, a disturbance component and a transmission device 1, a feed chamber is provided in the feed box, the disturbance component is arranged in the feed chamber, the disturbance component is used to disturb the material to prevent the material from bridging, a first rotating shaft fixing through hole is provided on the side wall of the feed box, the input end of the disturbance component passes through the first rotating shaft fixing through hole and is transmission-connected with the transmission device 1, the transmission device 1 provides rotational power for the disturbance component, the top and bottom of the feed box are respectively provided with a feed port 2 and a discharge port 3 both connected to the feed chamber, the discharge port 3 is used to communicate with the inside of the equipment, a disturbance component is arranged in the feed chamber, and power is provided by the transmission device 1 to prevent the material in the feed box from bridging, so that the micro-packaged materials can be normally fed, improve industrial production or ensure the progress of the experiment.

[0033] The disturbance component includes a rotating shaft and an interference disturbance plate 4. The feed box is a cylindrical box, the feed cavity is a cylindrical feed cavity, the axis of the cylindrical box is horizontally arranged, and the first rotating shaft fixing through hole and the second rotating shaft fixing through hole are respectively arranged on the two end surfaces of the cylindrical box. The axis of the cylindrical feed cavity, the axis of the rotating shaft, the axis of the first rotating shaft fixing through hole and the axis of the second rotating shaft fixing through hole all coincide with the axis of the cylindrical box. The middle part of the rotating shaft and one end of the rotating shaft are respectively rotatably connected with the first rotating shaft fixing through hole and the second rotating shaft fixing through hole, and the other end of the rotating shaft is coaxially fixedly connected with the transmission device 1. The interference disturbance plate 4 is evenly distributed side by side along the circumference of the rotating shaft on the rotating shaft between the first rotating shaft fixing through hole and the second rotating shaft fixing through hole. The feed port 2 and the discharge port 3 are respectively arranged at the top and bottom of the cylindrical wall of the cylindrical box, and the feed cavity is a cylindrical feed cavity. The disturbance component includes the setting of the rotating shaft and the interference disturbance plate 4, which has a simple structure, few components and low cost.

[0034] The disturbance component also includes a plurality of groups of pairs of inclined plates 5 respectively located on both sides of the disturbance plate 4. The two inclined plates 5 of each group are symmetrically arranged, and the distance between the two inclined plates 5 gradually increases along the rotation direction of the shaft. The inclined plates 5 located on the same side of the disturbance plate 4 are evenly distributed along the circumference of the shaft. The inclined plates 5 are used to push the materials on both sides of the cylindrical feed cavity toward the discharge port 3. The arrangement of the inclined plates 5 can facilitate the movement of the materials on both sides of the cylindrical feed cavity toward the discharge port 3, thereby avoiding the squeezing of the materials on both sides of the cylindrical feed cavity and affecting the feeding of the materials.

[0035] The cylindrical box includes a cylindrical box body 6 and a transmission end cover and a driven end cover located at both ends of the cylindrical box. The cylindrical box body 6 has openings at both ends. The transmission end cover and the driven end cover are detachably connected to the openings at both ends of the cylindrical box body 6 to close the openings at both ends of the cylindrical box body 6. The first rotating shaft fixing through hole and the second rotating shaft fixing through hole are respectively located on the transmission end cover and the driven end cover. The feed port 2 and the discharge port 3 are respectively arranged at the top and bottom of the cylindrical box body 6. The cylindrical box includes the cylindrical box body 6, the transmission end cover and the driven end cover, and they are detachably connected to each other, which is convenient for the installation of the disturbance component and maintenance.

[0036] The micro-feeding device also includes a bearing 7, a driven end sealing ring 8 and an active end sealing ring 9. The rotating shaft includes a bearing matching section 10, a driven end sealing ring matching section 11, a disturbance plate fixed section 12 and an active end sealing ring matching section 13 connected in sequence. The diameter of the bearing matching section 10, the diameter of the driven end sealing ring matching section 11 and the diameter of the disturbance plate fixed section 12 increase in sequence. The diameter of the driven end sealing ring matching section 11 is equal to the diameter of the active end sealing ring matching section 13. The disturbance plate 4 and the inclined plate 5 are both fixedly arranged on the disturbance plate fixed section 12. The driven end cover includes a driven end cover The driven end cover body 14 and the driven end cover cap 15 are detachably connected side by side along the axial direction of the rotating shaft. The second rotating shaft fixing through hole includes a bearing through hole 20 and a driven end sealing ring through hole 21. The bearing through hole 20 and the driven end sealing ring through hole 21 are respectively located on the driven end cover cap 15 and the driven end cover body 14. The inner ring and the outer ring of the bearing 7 are respectively in contact with the bearing matching section 10 and the bearing through hole 20. The inner ring and the outer ring of the driven end sealing ring 8 are respectively in contact with the driven end sealing ring matching section 11 and the driven end sealing ring through hole 21. The active end cover includes a plurality of The active end cover body 16 and the active end cover cap 17 are detachably connected side by side along the axial direction of the rotating shaft. The first rotating shaft fixing through hole includes an active end sealing ring through hole 22 and a rotating shaft through hole 23. The rotating shaft through hole 23 and the active end sealing ring through hole 22 are respectively located on the active end cover cap 17 and the active end cover body 16. The active end sealing ring matching section 13 is rotatably matched with the inner ring of the active end sealing ring 9 and the rotating shaft through hole 23. The outer ring of the active end sealing ring 9 is in contact with the active end sealing ring through hole 22. The active end sealing ring through hole 22 An active end sealing ring 9 is provided at one end near the disturbance plate 4, and a driven end sealing ring 8 is provided at one end near the disturbance plate 4 in the driven end sealing ring through hole 21. The setting of the bearing 7 can reduce the friction resistance between the rotating shaft and the driven end cover; the setting of the driven end sealing ring 8 and the active end sealing ring 9 can prevent external dust and other impurities from entering the feed chamber; the setting of the active end sealing ring 9 limiting ring can prevent the active end sealing ring 9 from entering the feed chamber from the front; the setting of the driven end sealing ring 8 limiting ring can prevent the driven end sealing ring 8 from entering the feed chamber from the front.

[0037] The micro-feeding device also includes a closing cover 18, which closes one end opening of the bearing through hole 20. The end face of the closing cover 18 contacts the outer ring of the bearing 7. A fixing frame is provided on the side of the active end cover away from the cylindrical box body 6. The transmission device 1 is detachably connected to the fixing frame. The setting of the closing cover 18 can close one end opening of the bearing through hole 20 to prevent dust from entering the interior of the bearing 7, increase the rotational resistance of the bearing 7, limit the bearing 7, and withstand the positive pressure of the rotating shaft.

[0038] The discharge port 3 is detachably connected to a discharge device 19 , in which a perforated plate is inserted, and the perforated plate is used to control the storage speed.

[0039] Sealing gaskets are arranged between the driven end cap 15 and the driven end cover body 14, between the driven end cover body 14 and the cylindrical box body 6, and between the active end cover body 16 and the cylindrical box body 6. The arrangement of the sealing gaskets can improve the sealing performance of the entire micro-feeding device.

[0040] The driven end cover cap 15 and the driven end cover body 14, the driven end cover body 14 and the cylindrical box body 6, the active end cover body 16 and the cylindrical box body 6, the discharge device 19 and the discharge port 3, the active end cover cap 17 and the active end cover body 16, and the transmission device 1 and the fixing frame are all screwed together by bolts, and the connection method is simple, effective and easy to operate.

[0041] Embodiment 2

[0042] This embodiment provides a device such as Figure 1 As shown, in this embodiment, the device includes a device body and the micro-feeding device in Example 1. The device body adds micro-packaged materials through the micro-feeding device. The device body can be a production device or an experimental device. A disturbance component is set in the feed chamber, and power is provided by the transmission device 1 to prevent the material in the feed box from bridging, so that the micro-packaged materials can be normally fed, thereby improving industrial production or ensuring the progress of the experiment.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A micro-feeding device, characterized in that: include: A feed box, a disturbance component and a transmission device, wherein a feed chamber is arranged in the feed box, the disturbance component is arranged in the feed chamber, the disturbance component is used to disturb the material to prevent the material from bridging, a first rotating shaft fixing through hole is arranged on the side wall of the feed box, the input end of the disturbance component passes through the first rotating shaft fixing through hole and is transmission-connected to the transmission device, the transmission device provides rotational power for the disturbance component, and a feed port and a discharge port, both of which are connected to the feed chamber, are respectively arranged on the top and bottom of the feed box, and the discharge port is used to communicate with the inside of the device; The disturbance component includes a rotating shaft and some disturbance disturbance plates, the feed box is a cylindrical box, the feed cavity is a cylindrical feed cavity, the axis of the cylindrical box is arranged horizontally, and the first rotating shaft fixing through hole and the second rotating shaft fixing through hole are respectively arranged on the two end surfaces of the cylindrical box, the axis of the cylindrical feed cavity, the axis of the rotating shaft, the axis of the first rotating shaft fixing through hole and the axis of the second rotating shaft fixing through hole all coincide with the axis of the cylindrical box, the middle part of the rotating shaft and one end of the rotating shaft are respectively rotatably connected with the first rotating shaft fixing through hole and the second rotating shaft fixing through hole, and the other end of the rotating shaft is coaxially fixedly connected with the transmission device, a plurality of the disturbance plates are evenly distributed side by side along the circumference of the rotating shaft on the rotating shaft between the first rotating shaft fixing through hole and the second rotating shaft fixing through hole, and the feed port and the discharge port are respectively arranged at the top and bottom of the cylindrical wall of the cylindrical box; The disturbance assembly further comprises a plurality of groups of pairs of inclined plates respectively located on both sides of the disturbance plate, the two inclined plates of each group are symmetrically arranged, and the distance between the two inclined plates gradually increases along the rotation direction of the rotating shaft, the inclined plates located on the same side of the disturbance plate are evenly distributed along the circumference of the rotating shaft, and the inclined plates are used to push the materials located on both sides of the cylindrical feed cavity toward the discharge port; The material discharging port is detachably connected with a material discharging device, a perforated plate is inserted in the material discharging device, and the perforated plate is used to control the material storage speed.

2. The micro-feeding device according to claim 1, characterized in that: The cylindrical box includes a cylindrical box body and a transmission end cover and a driven end cover located at both ends of the cylindrical box. The cylindrical box body has openings at both ends. The transmission end cover and the driven end cover are respectively detachably connected to the openings at both ends of the cylindrical box body to close the openings at both ends of the cylindrical box body. The first rotating shaft fixing through hole and the second rotating shaft fixing through hole are respectively located on the transmission end cover and the driven end cover. The feed port and the discharge port are respectively arranged at the top and bottom of the cylindrical box body.

3. The micro-feeding device according to claim 2, characterized in that: It also includes a bearing, a driven end sealing ring and an active end sealing ring, the rotating shaft includes a bearing mating section, a driven end sealing ring mating section, a disturbance plate fixed section and an active end sealing ring mating section which are connected in sequence, the diameters of the bearing mating section, the diameters of the driven end sealing ring mating section and the diameters of the disturbance plate fixed section increase in sequence, the diameter of the driven end sealing ring mating section is equal to the diameter of the active end sealing ring mating section, the disturbance plate and the inclined plate are both fixedly arranged on the disturbance plate fixed section, the driven end cover includes a driven end cover body and a driven end cover cap, the driven end cover body and the driven end cover cap are detachably connected side by side along the axial direction of the rotating shaft, the second rotating shaft fixed through hole includes a bearing through hole and a driven end sealing ring through hole, the bearing through hole and the driven end sealing ring through hole are respectively located on the driven end cover cap and the driven end cover body, the inner ring and the outer ring of the bearing are respectively connected to the bearing mating section and the driven end cover cap, The bearing through hole is in contact with the driving end sealing ring, the inner ring and the outer ring of the driven end sealing ring are in contact with the driven end sealing ring matching section and the driven end sealing ring through hole respectively, the transmission end cover comprises an active end cover body and an active end cover cap, the active end cover body and the active end cover cap are detachably connected side by side along the axial direction of the rotating shaft, the first rotating shaft fixed through hole comprises an active end sealing ring through hole and a rotating shaft through hole, the rotating shaft through hole and the active end sealing ring through hole are respectively located on the active end cover cap and the active end cover body, the active end sealing ring matching section is rotatably matched with the inner ring of the active end sealing ring and the rotating shaft through hole, the outer ring of the active end sealing ring is in contact with the active end sealing ring through hole, an active end sealing ring limiting ring is provided at one end of the active end sealing ring through hole close to the disturbance plate, and a driven end sealing ring limiting ring is provided at one end of the driven end sealing ring through hole close to the disturbance plate.

4. The micro-feeding device according to claim 3, characterized in that: It also includes a closing cover, which closes one end opening of the bearing through hole, and the end face of the closing cover contacts the outer ring of the bearing. A fixing frame is provided on the side of the transmission end cover away from the cylindrical box body, and the transmission device is detachably connected to the fixing frame.

5. The micro-feeding device according to claim 3, characterized in that: Sealing gaskets are arranged between the driven end cover cap and the driven end cover body, between the driven end cover body and the cylindrical box body, and between the active end cover body and the cylindrical box body.

6. The micro-feeding device according to claim 4, characterized in that: The driven end cover cap and the driven end cover body, the driven end cover body and the cylindrical box body, the active end cover body and the cylindrical box body, the discharge device and the discharge port, the active end cover cap and the active end cover body, and the transmission device and the fixing frame are all screwed together by bolts.

7. A device, characterized in that: The device comprises a device body and a micro-feeding device as described in any one of claims 1 to 6, wherein the device body is added with a micro-substituent through the micro-feeding device.

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