CN222404223U

CN222404223U - Feeding mechanism and feeding device

Info

Publication number: CN222404223U
Application number: CN202421198094.3U
Authority: CN
Inventors: 王赞; 谢菱峰
Original assignee: Han s Laser Technology Industry Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd
Priority date: 2024-05-29
Filing date: 2024-05-29
Publication date: 2025-01-28
Anticipated expiration: 2034-05-29

Abstract

The present application provides a feeding mechanism and a feeding device, wherein the material is in sheet form and is provided with through holes, and the feeding mechanism comprises: a feeding piece, on which a plurality of materials can be stacked and sleeved, an air passage is provided inside the feeding piece, an air inlet of the air passage is provided at one end of the feeding piece and is used to connect a high-pressure gas source, an air outlet of the air passage is provided on the side of the other end of the feeding piece, and the length of the air outlet along the axial direction of the feeding piece is greater than the thickness of the material along the axial direction; and a material moving assembly, comprising a pusher and a driver, the pusher is provided with an opening for the feeding piece to pass through, the pusher can move along the axial direction of the feeding piece, and the driver can drive the pusher to move so as to push the stacked material sleeved on the feeding piece to the end of the feeding piece provided with the air outlet; wherein the air inlet inputs high-pressure gas when the conveying mechanism is pressed down to pick up a material. The feeding mechanism of the embodiment of the present application can prevent the material from sticking and being lifted up during feeding.

Description

Feeding mechanism and feeding device

Technical Field

The application belongs to the technical field of material supply, and particularly relates to a feeding mechanism and a feeding device.

Background

In the process of producing and assembling a certain product, materials are needed to be assembled, the thickness of the materials is small, and a round hole, such as a metal ring, is formed in the middle of the materials. Before assembly, the materials need to be precisely fed. In the related art, the material feeding mode is to manually put the material into a tray, and then the manipulator of the feeding module adsorbs the material for feeding. However, because the materials are thinner and lighter, the materials overlapped with each other can sometimes adhere to each other, and one piece of material can adhere to the other piece of material after one adsorption, so that feeding errors are caused.

Disclosure of utility model

The embodiment of the application provides a feeding mechanism which can avoid feeding errors caused by adhesion.

The technical scheme adopted by the embodiment of the application is that a feeding mechanism is provided, wherein the material is sheet-shaped and provided with a through hole, and the feeding mechanism comprises:

The material feeding device comprises a material feeding part, a plurality of materials which can be sleeved on the material feeding part in a lamination way, an air passage arranged in the material feeding part, a gas inlet of the air passage arranged at one end of the material feeding part and used for connecting a high-pressure gas source, a gas outlet of the air passage arranged on the side surface of the other end of the material feeding part, and a gas outlet which is longer than the thickness of the materials along the axial direction of the material feeding part, wherein the gas outlet is longer than the thickness of the materials along the axial direction

The material moving assembly comprises a pushing member and a driver, wherein the pushing member is provided with an opening for the feeding member to pass through, the pushing member can move along the axial direction of the feeding member, and the driver can drive the pushing member to move so as to push materials sleeved on the feeding member in a lamination manner to one end of the feeding member provided with the air outlet;

The air inlet is used for inputting high-pressure air when the carrying mechanism presses down to pick up one material.

Further, the air outlet comprises a first air outlet hole arranged on the end face of the feeding piece and an air outlet groove arranged on the end face, the air outlet groove is communicated with the first air outlet hole, and two ends of the air outlet groove penetrate through the peripheral face of the feeding piece.

Further, the depth of the air outlet groove along the axial direction of the feeding piece is larger than the thickness of the material along the axial direction.

Further, still include the material loading cluster, the material loading cluster is including the portion of gripping, material loading pole, convex part and the chock plug that connect gradually, the material loading pole can supply a plurality of the material stromatolite cover is established last, chock plug detachably inserts first venthole, the convex part can be at least partly embedded the gas outlet tank, the chock plug with the material loading pole is coaxial, the size of portion of gripping along the first direction is greater than the external diameter of material loading pole, first direction perpendicular to the axis direction of material loading pole.

Further, the feed piece is including feed rod, base and the air cock that connects gradually, the air flue is located the feed rod with in the base, the air inlet locate the base and with the air cock intercommunication, the gas outlet is located the feed rod is kept away from the one end of base, the shape of base with open-ended shape adaptation is so that the opening can pass through the base.

Further, the device also comprises a gasket, wherein the gasket is matched and sleeved on the feeding piece and can move along the feeding piece, the gasket is positioned between the pushing piece and the material, and the pushing piece pushes the gasket to move and push the material.

Further, the device also comprises a material sensor, wherein the material sensor is arranged on one side of the feeding piece and corresponds to one end of the feeding piece, which is provided with the air outlet, and the material sensor is used for detecting whether the tail end of one end of the feeding piece, which is provided with the air outlet, is provided with a material or not;

and the driver drives the pushing piece to push the material when the material sensor detects that no material exists.

Further, the device also comprises a position sensor, wherein the position sensor is arranged at the tail end of one end of the feeding piece provided with the air outlet, and the position sensor is used for detecting whether the pushing piece reaches the tail end of one end of the feeding piece provided with the air outlet;

and when the position sensor detects the pusher shoe, the driver stops driving the pusher shoe.

The embodiment of the application also provides a feeding device, which comprises the feeding mechanism, a shifting mechanism and a mounting frame, wherein the mounting frame is provided with a jack, one end of the feeding piece provided with the air inlet is detachably inserted into the jack, the shifting assembly is arranged on the mounting frame, and the shifting mechanism is used for driving the mounting frame to switch between a feeding position and a material taking position.

The feeding mechanism provided by the embodiment of the application has the beneficial effects that the feeding mechanism is provided with the feeding piece and the material moving assembly. During operation, a plurality of materials can be sleeved on the feeding piece in advance through the through holes in the materials, then the materials on the feeding piece are pushed to one end of the feeding piece, which is provided with the air outlet, by the pushing piece of the material moving assembly, and the air outlet on the peripheral surface of the feeding piece is shielded by the stacked materials. When the carrying mechanism (such as a mechanical arm) is pressed on the outermost material to be picked up, the high-pressure gas is input into the air inlet of the feeding member, and the input high-pressure gas is extruded from the gaps between the stacked materials due to the fact that the materials are pressed by the pushing member and the carrying mechanism, so that the materials are separated from each other. At this time, the conveying mechanism picks up the outermost material and conveys it to the next position. Because before the material is carried away, the materials are separated by inputting high-pressure gas, the adhesion can be avoided when the material is carried, and feeding errors are avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of a feed element, gasket and material provided in accordance with an embodiment of the present application;

FIG. 2 is a perspective view of a feed block according to an embodiment of the present application;

FIG. 3 is a schematic view of a plurality of material stacks according to an embodiment of the present application sleeved on a feeding member;

fig. 4 is a schematic structural diagram of a feeding string according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a docking of a feeding string with a feeding member according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a feeding device according to an embodiment of the present application;

fig. 7 is an enlarged view at a in fig. 6.

Wherein, each reference sign in the figure:

10. The device comprises a feeding part, 11, an air passage, 111, an air inlet, 112, an air outlet, 1121, a first air outlet hole, 1122, an air outlet groove, 12, a feeding rod, 13, a base, 14 and an air tap;

20. a material moving assembly; 21, a pushing piece, 211, an opening, 22 and a driver;

30. Feeding strings; 31, a holding part, 32, a feeding rod, 33, a convex part, 34 and a plug head;

40. Gasket, 50, material sensor, 60, position sensor, 70, displacement mechanism, 80, mounting frame, 81, jack, 90, material, 91, through hole.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 and 2, a feeding mechanism provided in an embodiment of the present application will now be described. The feeding mechanism provided by the embodiment of the application is used for feeding the material 90.

Wherein, referring to fig. 1, the material 90 is sheet-shaped and provided with a through hole 91. The material 90 is sheet-shaped and may be rectangular, circular, polygonal, etc. The material 90 is further provided with through holes 91, and the shape of the through holes 91 may be circular, rectangular, polygonal or other shapes. If the material 90 has a circular shape and the through hole 91 has a circular shape, the material 90 has a circular shape. If the material 90 has a square shape and the through hole 91 is circular, the material 90 is in a square round hole shape. If the material 90 has a circular shape and the through hole 91 has a square shape, the material 90 has a circular square hole shape. Hereinafter, explanation will be given by taking the shape of the material 90 as a circle, and taking the shape of the ring with the through holes 91 as an example, specifically, the material 90 is metal, that is, the material 90 is a metal ring.

The feeding mechanism comprises a feeding piece 10 and a material moving assembly 20.

Referring to fig. 3, a plurality of materials 90 may be stacked on the feeding member 10, an air passage 11 is provided in the feeding member 10, an air inlet 111 of the air passage 11 is provided at one end of the feeding member 10 and is used for connecting with a high-pressure air source, an air outlet 112 of the air passage 11 is provided at a side surface of the other end of the feeding member 10, and a length of the air outlet 112 along an axial direction of the feeding member 10 is greater than a thickness of the materials 90 along the axial direction. The feeding member 10 has a rod shape with an outer diameter matched with an inner diameter of the through hole 91 of the material 90 so that the material 90 can be fitted on the feeding member 10. Since the feeding member 10 has a certain length and the material 90 is in a sheet shape, a plurality of materials 90 can be stacked and packed on the feeding member 10 at a time. The feeding member 10 may be disposed vertically, or may be disposed horizontally, or may be disposed obliquely. Explanation will be made below taking the vertical placement of the feeding member 10 as an example.

It will be appreciated that the shape of the feed element 10 is adapted to the shape of the through-hole 91 so that the material 90 can be moved along the feed element 10, for example, if the through-hole 91 is circular, the cross-sectional shape of the feed element 10 is circular, and if the through-hole 91 is rectangular, the cross-sectional shape of the feed element 10 is rectangular.

Referring to fig. 2, an air passage 11 is provided in the supply member 10, and an air inlet 111 and an air outlet 112 of the air passage 11 are respectively located at both ends of the supply member 10. Specifically, the feeding member 10 is vertically disposed, the plurality of materials 90 are attached to each other (i.e. stacked) on the feeding member 10 due to gravity, the air inlet 111 is disposed at the lower end of the feeding member 10, and the air outlet 112 is disposed at the upper end of the feeding member 10. The air inlet 111 is connected to a high pressure air source, which may be an air pump or an air supply system of a production plant. The air outlet 112 is disposed on the peripheral surface of the feeding member 10, and if the stacked materials 90 are located at the air outlet 112, the high-pressure air ejected from the air outlet 112 can be transmitted between the two stacked materials 90 to separate the two materials 90.

The length of the air outlet 112 in the axial direction of the feed member 10 is greater than the thickness of the material 90 in the axial direction, ensuring that the air outlet 112 is capable of separating at least two stacked materials 90 (i.e., the uppermost and second materials 90).

Referring to fig. 6 and 7, the material moving assembly 20 includes a pusher 21 and a driver 22, the pusher 21 is provided with an opening 211 through which the feeding member 10 passes, the pusher 21 is movable along the axial direction of the feeding member 10, and the driver 22 is capable of driving the pusher 21 to move so as to push the material 90 stacked on the feeding member 10 to an end of the feeding member 10 provided with the air outlet 112, so as to cover the air outlet 112. The pushing member 21 is sleeved on the feeding member 10, and can be driven by the driver 22 to move from one end to the other end of the feeding member 10, and when a plurality of materials 90 are sleeved on the feeding member 10, the pushing member 21 moves to push the plurality of materials 90 together, so that the materials 90 move on the feeding member 10 to one end of the feeding member 10 provided with the air outlet 112. It will be appreciated that pusher shoe 21 is located on the side of feed shoe 10 where material 90 is remote from air outlet 112. When the feeding member 10 is vertically arranged, the air outlet 112 is on the upper side, and the air inlet 111 is on the lower side, the pusher shoe 21 is under the material 90, and the stacked materials 90 are placed on the pusher shoe 21 under the action of gravity. The driver 22 can drive the pusher shoe 21 to lift the material 90, so that the stacked material 90 moves to the upper end of the feeding member 10, and the stacked material 90 is sleeved outside the air outlet 112 (the air outlet 112 is located on the peripheral surface).

Wherein the gas inlet 111 is fed with high pressure gas when the handling mechanism is pressed down to pick up a material 90. When the pusher 21 pushes the material 90 to reach the end of the feeding member 10 where the air outlet 112 is provided, the carrying mechanism can pick up the material 90 (such as the uppermost material 90) located at the outermost end, and when the carrying mechanism descends to the material 90, the lower part of the stacked material 90 is supported by the pusher 21, and the upper part is pressed by the carrying mechanism, so that the stacked material 90 forms a closed cavity, at this moment, the air inlet 111 inputs high-pressure air, the cavity is opened by the high-pressure air, so that the materials 90 attached to each other are separated by the air, and then the carrying mechanism takes away the uppermost material 90. I.e. the separation between the individual materials 90 is achieved by feeding a high pressure gas between the stacked materials 90. The handling mechanism may be a robotic arm that may employ suction cups or gripping fingers to pick up the material 90.

Referring to fig. 7, specifically, the driver 22 may be a screw mechanism, where the screw mechanism may include a motor, a screw and a nut sleeved on the screw, and the motor drives the screw to rotate, so as to drive the nut to lift, and the nut is connected with the pusher shoe 21, so as to drive the pusher shoe 21 to push the material 90.

Referring to fig. 1 and 2, the air outlet 112 includes a first air outlet hole 1121 provided in an end surface of the feed member 10 and an air outlet groove 1122 provided in the end surface, the air outlet groove 1122 being in communication with the first air outlet hole 1121, and both ends of the air outlet groove 1122 penetrating the peripheral surface of the feed member 10. Compressed air in the air passage 11 is guided to the air outlet groove 1122 through the first air outlet hole 1121, and is then discharged from the air outlet groove 1122 from the peripheral surface of the supply member 10, thereby separating the stacked materials 90 fitted outside the supply member 10 from each other and avoiding adhesion to each other. It should be noted that, since the first air outlet hole 1121 is disposed on the end surface of the feeding member 10, when the conveying mechanism conveys the material 90, the pickup structure of the conveying mechanism needs to seal the end of the first air outlet hole 1121 so as to avoid the high-pressure air from being discharged from the end of the first air outlet hole 1121.

Referring to fig. 2 and 3, the depth of the air outlet groove 1122 in the axial direction of the feed member 10 is greater than the thickness of the material 90 in the axial direction to ensure that the air outlet groove 1122 can oppose the gap between the two pieces of material 90, and high pressure gas is input between the two pieces of material 90.

Referring to fig. 4 and 5, the feeding mechanism further includes a feeding string 30, where the feeding string 30 includes a holding portion 31, a feeding rod 32, a protruding portion 33, and a plug 34, which are sequentially connected, the feeding rod 32 may be stacked and sleeved with a plurality of materials 90, the plug 34 may be detachably inserted into the first air outlet hole 1121, the protruding portion 33 may be at least partially inserted into the air outlet groove 1122, the plug is coaxial with the feeding rod 32, a dimension of the holding portion 31 along the first direction is greater than an outer diameter of the feeding rod 32, and the first direction is perpendicular to an axial direction of the feeding rod 32. The feeding string 30 may be sleeved with a plurality of materials 90, specifically, a plurality of materials 90 may be manually sleeved on the feeding rod 32, then the sleeved and boring feeding string 30 is reversely inserted onto the feeding member 12 (the pushing member 21 on the feeding member 12 has been lowered to the lowest position in advance), that is, the plug 34 and the protrusion 33 are respectively inserted into the first air outlet hole 1121 and the air outlet groove 1122, at this time, the feeding rod 12 and the feeding rod 32 are coaxial, and the materials 90 sleeved on the feeding rod 32 may be transferred onto the feeding rod 12 along the feeding rod 32. That is, through the feeding string 30, a plurality of materials 90 can be sequentially sleeved on the feeding member 10 in a stacked manner, so that the efficiency of switching the materials 90 by the feeding member 10 is greatly improved.

Referring to fig. 1 and 2, the feeding member 10 includes a feeding rod 12, a base 13 and an air tap 14 connected in sequence, the air channel 11 is disposed in the feeding rod 12 and the base 13, the air inlet 111 is disposed in the base 13 and is communicated with the air tap 14, the air outlet 112 is disposed at one end of the feeding rod 12 far away from the base 13, and the shape of the base 13 is adapted to the shape of the opening 211 so that the opening 211 can pass through the base 13. The base 13 is used for supporting and fixing the feed rod 12, and the feed rod 12 can be placed on a table top or mounted on a corresponding station through the base 13. The air channel 11 is arranged in the feed rod 12 and the base 13, the air tap 14 is connected with a high-pressure air source through an air pipe, and high-pressure air is input into the air outlet 112 of the feed rod 12 from the air channel 11. The shape of the base 13 is adapted to the shape of the opening 211, so that the pusher shoe 21 can be lowered to clamp the opening 211 under the base 13, so that the feed rod 12 can accommodate more material 90 to be sleeved.

Referring to fig. 1 and 3, the loading mechanism further includes a gasket 40, where the gasket 40 is matched with the feeding member 10 and can move along the feeding member 10, and the gasket 40 is located between the pushing member 21 and the material 90, and the pushing member 21 pushes the gasket 40 to move and push the material 90. The material 90 can be attached to the gasket 40 on the feeder 10, and the gasket 40 can move integrally when moved, so that the pushing of the material 90 is integral and the receiving is uniform. The washer 40 can assist the pusher shoe 21 to better support the material 90 and push the material 90. The washer 40 is in a circular ring shape, and the pusher shoe 21 is fork-shaped, and a fork can be used as the pusher shoe 21.

Referring to fig. 6 and 7, the feeding mechanism further includes a material sensor 50, where the material sensor 50 is disposed on one side of the feeding member 10 and corresponds to an end of the feeding member 10 having the air outlet 112, and the material sensor 50 is configured to detect whether the material 90 is present at an end of the feeding member 10 having the air outlet 112. The driver 22 drives the pusher shoe 21 to push the material 90 when the material sensor 50 detects that there is no material 90. When the material 90 located at the uppermost position is picked up and carried away by the carrying mechanism, the material sensor 50 detects that the uppermost end of the upper feeding member 10 is free of the material 90, and the driver 22 drives the pusher shoe 21 to push the material 90 to rise until the material 90 is lifted to the uppermost end of the material rod, and the material sensor 50 detects that the driving of the driver 22 is stopped. Through the cooperation of material 90 passer and driver 22, can make material 90 constantly upwards lift to the handling mechanism picks up material 90, and the handling mechanism descends the height at every turn unanimously.

Referring to fig. 6 and 7, the loading mechanism further includes a position sensor 60, the position sensor 60 is disposed at the end of the feeding member 10 having the air outlet 112, the position sensor 60 is used for detecting whether the pusher shoe 21 reaches the end of the feeding member 10 having the air outlet 112, and the driver 22 stops driving the pusher shoe 21 when the position sensor 60 detects the pusher shoe 21. The position sensor 60 is used for detecting the position of the pusher shoe 21, and as the conveying mechanism continuously conveys the material 90 on the total feeding member 10, the driver 22 continuously lifts the pusher shoe 21 until the material 90 is completely removed, but since the material 90 is completely removed, the material sensor 50 does not sense the material 90, the driver 22 still lifts the pusher shoe 21, and the driver 22 stops driving the pusher shoe 21 only if the pusher shoe 21 continues to rise to be detected by the position sensor 60.

Referring to fig. 6 and 7, an embodiment of the present application further provides a feeding device, including a feeding mechanism for the above material 90, and further including a displacement mechanism 70 and a mounting frame 80, where the mounting frame 80 is provided with a jack 81, one end of the feeding member 10 provided with an air inlet 111 is detachably inserted into the jack 81, the material moving assembly 20 is disposed on the mounting frame 80, and the displacement mechanism 70 is used for driving the mounting frame 80 to switch between a feeding position and a material taking position.

The displacement mechanism 70 may include a motor and a guide rail on which the mounting frame 80 is disposed, and the motor may drive the mounting frame 80 to translate along the guide rail to switch between the loading position and the take-out position. The loading position is the position where the stacked materials 90 are manually transferred to the station on the feeder 10 using the loading string 30, and the material taking position is the position where the handling mechanism picks up the materials 90 from the feeder 10.

The feeding device according to the embodiment of the present application includes the feeding mechanism for the material 90 in any embodiment, so that the feeding device for the material 90 in any embodiment has the beneficial effects brought by the feeding mechanism for the material 90 in any embodiment, and is not described herein.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. Feed mechanism, the material is slice and is equipped with the through-hole, its characterized in that, feed mechanism includes:

The material moving assembly comprises a pushing member and a driver, wherein the pushing member is provided with an opening for the feeding member to pass through, the pushing member can move along the axial direction of the feeding member, and the driver can drive the pushing member to move so as to push materials sleeved on the feeding member in a lamination manner to one end of the feeding member provided with the air outlet so as to cover the air outlet;

2. The feeding mechanism of claim 1, wherein the air outlet comprises a first air outlet hole arranged on the end face of the feeding member and an air outlet groove arranged on the end face, the air outlet groove is communicated with the first air outlet hole, and two ends of the air outlet groove penetrate through the peripheral face of the feeding member.

3. The feeding mechanism of claim 2, wherein the depth of the air outlet groove along the axial direction of the feeding member is greater than the thickness of the material along the axial direction.

4. The feeding mechanism of claim 2, further comprising a feeding string, wherein the feeding string comprises a holding portion, a feeding rod, a protruding portion and a plug which are sequentially connected, the feeding rod is sleeved with a plurality of material stacks, the plug is detachably inserted into the first air outlet hole, the protruding portion can be at least partially embedded into the air outlet groove, the plug is coaxial with the feeding rod, the dimension of the holding portion along a first direction is larger than the outer diameter of the feeding rod, and the first direction is perpendicular to the axial direction of the feeding rod.

5. The feeding mechanism of claim 1, wherein the feeding member comprises a feeding rod, a base and an air tap which are sequentially connected, the air passage is formed in the feeding rod and the base, the air inlet is formed in the base and is communicated with the air tap, the air outlet is formed in one end, far away from the base, of the feeding rod, and the shape of the base is adapted to the shape of the opening so that the opening can pass through the base.

6. The feeding mechanism of claim 1, further comprising a washer, wherein the washer is matingly sleeved on the feeding member and is movable along the feeding member, the washer is located between the pusher shoe and the material, and the pusher shoe pushes the washer to move and push the material.

7. The feeding mechanism of claim 1, further comprising a material sensor, wherein the material sensor is disposed on one side of the feeding member and corresponds to one end of the feeding member provided with the air outlet, and the material sensor is configured to detect whether there is material at the end of the feeding member provided with the air outlet;

8. The feeding mechanism of claim 7, further comprising a position sensor disposed at an end of the feeding member at which the air outlet is disposed, the position sensor being configured to detect whether the pusher shoe reaches the end of the feeding member at which the air outlet is disposed;

9. The feeding device is characterized by comprising the feeding mechanism according to any one of claims 1 to 8, a shifting mechanism and a mounting frame, wherein the mounting frame is provided with a jack, one end of the feeding piece, provided with the air inlet, is detachably inserted into the jack, the shifting assembly is arranged on the mounting frame, and the shifting mechanism is used for driving the mounting frame to switch between a feeding position and a material taking position.