Feeding device

Abstract

A feeding device, comprising: a positioning mechanism (1), which is configured for placement of a tray (6) and has a loading position and an unloading position to enable the tray (6) to have different set orientations when the positioning mechanism (1) is located at the loading position and at the unloading position; a conveying mechanism (2), on which the positioning mechanism (1) is arranged; and an overturning mechanism (3), which is connected to the conveying mechanism (2), and enables the positioning mechanism (1) to be located at the loading position or at the unloading position by means of the conveying mechanism (2). The feeding device can improve the production efficiency.

Description

Feeding device

[0001] The present disclosure claims priority to the Chinese patent application No. 202421190939.4, filed on May 28, 2024, and entitled "Feeding device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of material transportation equipment, and more particularly, to a feeding device. BACKGROUND

[0003] In the battery production process, the current steel shell feeding machine tray is horizontally placed, and after the synchronous belt transports and positions the tray, the steel shell is sequentially carried to the designated position by the suction cup mechanism. However, if the tray is in poor condition and deformed, the steel shell inside the tray is easy to fall, which causes the suction cup to be unable to suck, thereby reducing the production efficiency. SUMMARY

[0004] An object of the present disclosure is to provide a new technical solution for a feeding device.

[0005] According to an aspect of the present disclosure, a feeding device is provided, comprising:

[0006] a positioning mechanism for placing a tray, the positioning mechanism having a feeding position and a discharging position, so that the tray has different orientations in the feeding position and the discharging position;

[0007] a transmission mechanism, the positioning mechanism being arranged on the transmission mechanism;

[0008] a turnover mechanism connected with the transmission mechanism and capable of positioning the positioning mechanism at the feeding position or the discharging position through the transmission mechanism.

[0009] Optionally, when the positioning mechanism is at the feeding position, the tray is in a horizontal state, and when the positioning mechanism is at the discharging position, the tray is in a vertical state.

[0010] Optionally, the turnover mechanism comprises a first driving member, a first rotating shaft and a fixed block, the first rotating shaft being fixedly connected with the transmission mechanism through the fixed block, so that the first driving member can drive the first rotating shaft to rotate the transmission mechanism.

[0011] Optionally, the positioning mechanism comprises a placing plate, a baffle assembly and a driving assembly.

[0012] The placing plate is used for placing the tray, the baffle assembly is arranged at the side of the placing plate, and the driving assembly can drive the baffle assembly to move towards the direction close to or away from the placing plate, so as to limit or release the tray.

[0013] Optionally, the baffle assembly comprises a first baffle, a second baffle, a third baffle and a fourth baffle.

[0014] The first baffle and the second baffle are arranged at two opposite sides of the tray placing plate respectively, and the third baffle and the fourth baffle are arranged at the other two opposite sides of the tray placing plate respectively.

[0015] Optionally, the first baffle and the second baffle each comprise a first positioning part and a second positioning part, the first positioning part is used for limiting the tray, and the second positioning part is used for limiting the material in the tray.

[0016] When the positioning mechanism is located at the unloading position, the side close to the third baffle is the unloading side of the tray, and the third baffle is located at the upper side of the fourth baffle. Optionally, a cover plate mechanism is further included, the cover plate mechanism is arranged on the positioning mechanism, and the cover plate mechanism has an open state and a closed state relative to the positioning mechanism.

[0017] When the positioning mechanism is located at the loading position, the cover plate mechanism is in the open state, so that the tray can be located on the positioning mechanism.

[0018] When the positioning mechanism is located at the unloading position, the cover plate mechanism is in the closed state, so as to cover the material in the tray.

[0019] Optionally, a support assembly is further included, the support assembly comprises a support base and a limiting support rod, and the turnover mechanism is arranged on the support base.

[0020] The cover plate mechanism comprises a cover plate, a second rotating shaft, a supporting shaft and an elastic member, one side of the cover plate is rotatably arranged on the support base through the second rotating shaft, the other side is supported on the limiting support rod through the supporting shaft, and both ends of the cover plate are pulled tight on the support base through the elastic member.

[0021] When the positioning mechanism is located at the loading position, the limiting support rod can limit the cover plate from rotating towards the positioning mechanism, so that the cover plate mechanism is in the open state.

[0022] When the positioning mechanism is located at the unloading position, the supporting shaft does not contact the limiting support rod, so that the elastic member can pull the cover plate to be in the closed state.

[0023] Optionally, the transmission mechanism comprises a base plate, a second driving member, a lead screw and a nut seat, and the positioning mechanism comprises a placement plate, the base plate being connected with the turnover mechanism;

[0024] The second driving member is fixed on the base plate, one end of the lead screw is connected with the output end of the second driving member, and the other end is arranged on the nut seat, and the nut seat is fixed on the placement plate;

[0025] The second driving member can drive the lead screw to rotate, so that the placement plate is driven by the nut seat to extend or retract the cover plate mechanism.

[0026] Optionally, the transmission mechanism further comprises a first guide rail and a second guide rail, the first guide rail is arranged on the base plate, the second guide rail is arranged on the first guide rail, and the placement plate is arranged on the second guide rail to guide the placement plate to extend or retract the cover plate mechanism.

[0027] One technical effect of the present disclosure is that the feeding device provided by the present disclosure has a turnover mechanism and a transmission mechanism, the turnover mechanism can drive the transmission mechanism to rotate, so that the positioning mechanism can be located at the feeding position and the discharging position, the tray has different set orientations at the feeding position and the discharging position, the material is convenient to take when discharging and the material is not easy to pour, and the production efficiency is improved.

[0028] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments thereof, which description should be taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which form a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] FIG. 1 is a schematic view of a feeding device provided by the present disclosure (feeding).

[0031] FIG. 2 is a side view of the feeding device provided by FIG. 1.

[0032] FIG. 3 is a schematic view of a feeding device provided by the present disclosure (discharging).

[0033] FIG. 4 is a front view of a feeding device provided by the present disclosure (discharging).

[0034] FIG. 5 is a schematic view of a cover plate mechanism and a support assembly provided by the present disclosure (feeding).

[0035] FIG. 6 is a side view of the cover plate mechanism and the support assembly provided by FIG. 5.

[0036] FIG. 7 is a schematic view of a transmission mechanism provided by the present disclosure.

[0037] Fig. 8 is a side view of the transmission mechanism provided in Fig. 7.

[0038] Fig. 9 is one of the schematic diagrams of the positioning mechanism provided in the present disclosure (before positioning).

[0039] Fig. 10 is a top view of the positioning mechanism provided in Fig. 9.

[0040] Fig. 11 is a bottom view of the positioning mechanism provided in Fig. 9.

[0041] Fig. 12 is the second of the schematic diagrams of the positioning mechanism provided in the present disclosure (after positioning).

[0042] Fig. 13 is a top view of the positioning mechanism provided in Fig. 12. 1, positioning mechanism; 11, placing plate; 12, first baffle; 13, second baffle; 14, third baffle; 15, fourth baffle; 16, first positioning part; 17, second positioning part; 18, driving assembly; 2, transmission mechanism; 21, bottom plate; 22, lead screw; 23, second driving member; 24, nut seat; 25, first guide rail; 26, second guide rail; 3, overturning mechanism; 31, first driving member; 32, first rotating shaft; 33, fixed block; 4, cover plate; 41, cover plate; 42, second rotating shaft; 43, support shaft; 44, elastic member; 5, support assembly; 51, support; 52, limiting support rod; 6, tray; 7, material. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present disclosure will now be described in detail by referring to the drawings. Note that the relative arrangement, numerical expressions, and numerical values of the components and steps set forth in these embodiments are not limiting to the scope of the present disclosure unless otherwise specifically stated.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the disclosure and its applications or uses.

[0045] Techniques and equipment known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0046] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0047] Note that similar reference numerals and letters refer to similar items throughout the drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0048] As shown in FIGS. 1-13, according to one aspect of the present disclosure, a feeding device is provided, comprising: a positioning mechanism 1 for placing a tray 6, the positioning mechanism 1 having an upper feeding position and a lower feeding position, the tray 6 having different orientations in the upper feeding position and the lower feeding position; a transmission mechanism 2, the positioning mechanism 1 being arranged on the transmission mechanism 2; a turnover mechanism 3 connected with the transmission mechanism 2 and capable of positioning the positioning mechanism 1 at the upper feeding position or the lower feeding position through the transmission mechanism 2.

[0049] In the embodiment, the tray 6 is placed on the positioning mechanism 1, and the positioning mechanism 1 is capable of positioning the tray to achieve accurate feeding. In actual application, some materials 7 are usually placed in sequence in the tray 6, so that the materials 7 are prone to be spilled when being fed.

[0050] For example, the steel shell of a battery and other columnar materials 7, since the tray 6 is horizontally placed when being fed and unloaded, when the vacuum suction cup vertically sucks the steel shell, on the one hand, it is not conducive to feeding, and on the other hand, it is easy to cause the materials 7 to be spilled when the tray 6 is slightly tilted or the materials 7 in the tray 6 are bumped.

[0051] The feeding device provided by the present disclosure has a turnover mechanism 3 and a transmission mechanism 2, wherein the turnover mechanism 3 drives the transmission mechanism 2 to rotate, so that the positioning mechanism 1 arranged on the transmission mechanism 2 can be positioned at the upper feeding position and the lower feeding position, and the tray 6 has different set orientations in the upper feeding position and the lower feeding position, so that the materials 7 are easy to be taken when being fed, and the materials 7 are not easy to be spilled when being fed, thereby improving the production efficiency. The upper feeding position refers to the position of the positioning mechanism when the tray with materials is fed to the positioning mechanism, and the lower feeding position refers to the position of the positioning mechanism when the materials in the tray are fed.

[0052] Specifically, in the above embodiment, when the positioning mechanism 1 is positioned at the upper feeding position, the turnover mechanism 3 can make the tray 6 placed on the positioning mechanism 1 in a convenient orientation for assembly through the transmission mechanism 2, for example, make the tray 6 in a horizontal state to facilitate the materials 7 to be placed in sequence. When the external feeding device needs to feed, the turnover mechanism 3 makes the tray 6 on the positioning mechanism 1 in another orientation for feeding through the transmission mechanism 2, for example, makes the tray 6 tilt from the horizontal state to a certain inclination angle with the horizontal state, so that the height of the feeding side is higher than that of the other side, and the materials 7 placed in the tray 6 are in a certain stacking state, and the external feeding device can directly suck the materials 7 from top to bottom. In the feeding process, the materials 7 in the stacking state are not easy to be spilled due to the certain inclination, and one side is limited by the tray 6, thereby improving the production efficiency.

[0053] In the above embodiment, the setting orientation of the tray 6 at the upper feeding position and the lower feeding position can be adjusted adaptively according to the shape and placement of the material 7 in the tray 6, which is highly flexible, has a wide range of adaptation, improves production efficiency, and reduces production cost.

[0054] Optionally, as shown in FIGS. 1-4, when the positioning mechanism 1 is at the upper feeding position, the tray 6 is in a horizontal state, and when the positioning mechanism 1 is at the lower feeding position, the tray 6 is in a vertical state.

[0055] Specifically, in some embodiments, the positioning mechanism 1 is rotated by the transmission mechanism 2 through the overturning mechanism 3 to set the tray 6 to a horizontal state or a vertical state, i.e., the overturning mechanism 3 can overturn the positioning mechanism 1 by 90° through the transmission mechanism 2 to set the orientation of the tray 6. When the tray 6 is in a vertical direction, a cover plate 41 or other blocking member can be provided on the other side of the tray 6 away from the material 7 to prevent the material 7 from falling off.

[0056] When feeding, the tray 6 is in a horizontal state, and when discharging, the tray 6 is overturned to a vertical state to facilitate the external discharging device to discharge the material, at this time, the material 7 is in a flat state and is stacked in the tray 6 in turn, and in the discharging process, the material is discharged from top to bottom, and the material already in a flat state does not exist the case of falling material, further improving the production efficiency.

[0057] Optionally, as shown in FIGS. 1-4, the overturning mechanism 3 includes a first driving member 31, a first rotating shaft 32, and a fixed block 33, the first rotating shaft 32 is fixedly connected with the transmission mechanism 2 through the fixed block 33, so that the first driving member 31 can drive the first rotating shaft 32 to rotate the transmission mechanism 2.

[0058] Specifically, in this embodiment, the first driving member 31 as a power member can drive the first rotating shaft 32 to rotate, and the first rotating shaft 32 is fixed on the fixed block 33, and the fixed block 33 is fixed on the transmission mechanism 2, so that under the driving of the first driving member 31, all components of the transmission mechanism 2 can rotate, so that the positioning mechanism 1 drives the tray 6 to rotate from the upper feeding position to the lower feeding position, or from the lower feeding position to the upper feeding position, to change the placement state of the material 7 in the tray 6. The first driving member 31 can be a motor, and the fixed block 33 facilitates the assembly of the first rotating shaft 32 and the transmission mechanism 2.

[0059] Optionally, as shown in FIGS. 9-13, the positioning mechanism 1 comprises a placing plate 11, a baffle assembly, and a driving assembly 18; the placing plate 11 is used for placing the tray 6, the baffle assembly is arranged at the side of the placing plate 11, and the driving assembly 18 can drive the baffle assembly to move towards the direction of approaching or moving away from the placing plate 11, so as to limit or release the tray 6.

[0060] Specifically, in the embodiment, the placing plate 11 is arranged to provide a placing space for the tray 6, and the baffle assembly is arranged to be driven by the driving assembly 18 to move away from the placing plate 11 before the tray 6 is placed on the placing plate 11, so as to facilitate the placement of the tray 6. After the tray 6 is placed on the placing plate 11, the baffle assembly is driven by the driving assembly 18 to move towards the placing plate 11, clamping the tray 6, so as to limit and fix the tray 6. The limiting mode has a simple structure and is easy to implement.

[0061] Specifically, in the embodiment, the placing plate 11 is arranged to provide a placing space for the tray 6, and the baffle assembly is arranged to be driven by the driving assembly 18 to move away from the placing plate 11 before the tray 6 is placed on the placing plate 11, so as to facilitate the placement of the tray 6. After the tray 6 is placed on the placing plate 11, the baffle assembly is driven by the driving assembly 18 to move towards the placing plate 11, clamping the tray 6, so as to limit and fix the tray 6. The limiting mode has a simple structure and is easy to implement.

[0062] Optionally, as shown in FIGS. 9-13, the baffle assembly comprises a first baffle 12, a second baffle 13, a third baffle 14, and a fourth baffle 15; the first baffle 12 and the second baffle 13 are arranged at the opposite two sides of the placing plate 11 of the tray 6, and the third baffle 14 and the fourth baffle 15 are arranged at the opposite two other sides of the placing plate 11 of the tray 6.

[0063] Specifically, in the embodiment, the tray 6 is usually designed as a rectangle or a square, and the first baffle 12, the second baffle 13, the third baffle 14, and the fourth baffle 15 are arranged at each side of the tray 6, respectively, so that each side of the tray 6 can be limited, improving the stability of the tray 6. The driving assembly 18 can be matched with four cylinders to be independently controlled, improving the flexibility of the equipment.

[0064] Optionally, as shown in FIGS. 9-13, the first baffle 12 and the second baffle 13 each include a first positioning portion 16 for limiting the tray 6 and a second positioning portion 17 for limiting the material 7 in the tray 6; when the positioning mechanism 1 is located at the discharging position, the side close to the third baffle 14 is the discharging side of the tray 6, and the third baffle 14 is located above the fourth baffle 15.

[0065] Specifically, in the present embodiment, the first positioning portion 16 limits the tray 6, and the second positioning portion 17 limits the material 7, so that the tray 6 and the material 7 in the tray 6 can be kept stable during feeding, discharging or other operation processes. The second positioning portion 17 can be designed with multiple notches matching the external shape of the material 7, further improving the reliability of limiting the material 7, as shown in FIGS. 9-10 and 12-13.

[0066] When the positioning mechanism 1 is located at the discharging position, the side close to the third baffle 14 is the discharging side of the tray 6, and the third baffle 14 is located above the fourth baffle 15, and the third baffle 14 and the fourth baffle 15 only position the tray 6, so that when the third baffle 14 is located above the fourth baffle 15, the stability of the material 7 and the tray 6 can be ensured during discharging, and the efficiency of discharging is not affected. The third baffle 14 being located above the fourth baffle 15 means that the third baffle 14 is located higher than the fourth baffle 15 in the vertical direction, i.e., the third baffle 14 can be located directly above the fourth baffle 15 or obliquely above the fourth baffle 15, which is not limited in the present disclosure.

[0067] Optionally, as shown in FIGS. 5-6, the feeding device further includes a cover plate 4, the cover plate 4 is arranged on the positioning mechanism 1, and the cover plate 4 has an open state and a closed state relative to the positioning mechanism 1; when the positioning mechanism 1 is located at the feeding position, the cover plate 4 is in the open state to enable the tray 6 to be located on the positioning mechanism 1; when the positioning mechanism 1 is located at the discharging position, the cover plate 4 is in the closed state to cover the material 7 in the tray 6.

[0068] Specifically, in actual application, the tray 6 is usually in a horizontal state at the feeding position, and the tray 6 is usually in a vertical state at the discharging position. The cover plate 4 is arranged to enable the cover plate 4 and the tray 6 to limit the material 7 in the front-back direction at the discharging position, so as to avoid the material 7 from falling at the discharging position, and the cover plate 4 is in the open state at the feeding position to facilitate the placement of the tray 6 or the material 7, further improving the reliability of the device.

[0069] Optionally, as shown in FIGS. 5-6, the feeding device further comprises a support assembly 5, the support assembly 5 comprises a support 51 and a limiting support rod 52, the turnover mechanism 3 is arranged on the support 51; the cover plate 4 comprises a cover plate 41, a second rotating shaft 42, a supporting shaft 43 and an elastic member 44, one side of the cover plate 41 is rotatably arranged on the support 51 through the second rotating shaft 42, the other side is supported on the limiting support rod 52 through the supporting shaft 43, and both ends of the cover plate 41 are pulled tight on the support 51 through the elastic member 44; when the positioning mechanism 1 is in the feeding position, the limiting support rod 52 can limit the rotation of the cover plate 41 towards the positioning mechanism 1, so that the cover plate 4 is in the open state; when the positioning mechanism 1 is in the discharging position, the supporting shaft 43 does not contact with the limiting support rod 52, so that the elastic member 44 can pull the cover plate 41 to the closed state.

[0070] Specifically, in this embodiment, the second rotating shaft 42 and the elastic member 44 are arranged to enable the cover plate 41 to cover the tray 6 to limit the material 7, avoid falling, and avoid tilting or deviation of the tray 6. The arrangement of the supporting shaft 43 and the limiting support rod 52 enables the cover plate 41 to be in the open state, facilitating the placement and feeding of the tray 6. This structure is relatively simple and does not occupy too much device space.

[0071] Optionally, as shown in FIGS. 7-8, the conveying mechanism 2 comprises a bottom plate 21, a second driving member 23, a lead screw 22 and a nut seat 24, the positioning mechanism 1 comprises a placement plate 11, the bottom plate 21 is connected with the turnover mechanism 3; the second driving member 23 is fixed on the bottom plate 21, one end of the lead screw 22 is connected with the output end of the second driving member 23, the other end penetrates through the nut seat 24, the nut seat 24 is fixed on the placement plate 11, and the second driving member 23 can drive the lead screw 22 to rotate, so that the placement plate 11 is driven by the nut seat 24 to extend or retract the cover plate 4.

[0072] Specifically, when the positioning mechanism 1 is in the discharging position, the cover plate 4 is arranged outside the material 7, and in this embodiment, the second driving member 23, the lead screw 22 and the nut seat 24 are arranged to enable the second driving member 23 to drive the placement plate 11 to extend out of the cover plate 4 when discharging, so that the material 7 can be exposed in a row, facilitating the external discharging mechanism to discharge in sequence. When the positioning mechanism 1 is in the feeding position, the second driving member 23 can drive the lead screw 22 to rotate, the placement plate 11 is driven by the nut seat 24 to extend out of the cover plate 4, facilitating the placement of the tray 6 or feeding, and after the tray 6 is placed and positioned, the second driving member 23 drives the lead screw to rotate reversely, so that the placement plate 11 is retracted with the nut seat 24 into the cover plate 4.

[0073] In the above embodiment, the second driving member 23, the screw rod 22 and the nut seat 24 are arranged, so that the feeding and discharging operations are relatively simple, the production efficiency is further improved, the structure is simple, the occupied space is relatively small, and the production cost is reduced.

[0074] Optionally, as shown in FIGS. 7-8, the conveying mechanism 2 further comprises a first guide rail 25 and a second guide rail 26, the first guide rail 25 is arranged on the bottom plate 21, the second guide rail 26 is arranged on the first guide rail 25, and the placing plate 11 is arranged on the second guide rail 26 to guide the placing plate 11 to extend out or retract into the cover plate 4.

[0075] Specifically, in the embodiment, the arrangement of the first guide rail 25 and the second guide rail 26 can facilitate the sliding of the placing plate 11 relative to the bottom plate 21, achieve the purpose of extending out or retracting into the cover plate 4, and on the other hand, the arrangement of the two guide rails can shorten the length of the guide rail, achieve long-distance conveying, reduce the volume of the equipment, and improve the space utilization.

[0076] In the above embodiments, the differences between the embodiments are mainly described, and the different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory. Considering the brevity of the writing, it will not be repeated here.

[0077] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A feeding device, characterized in that, include: A positioning mechanism is used to place a material tray. The positioning mechanism has a loading position and a unloading position, so that the material tray can have different set orientations in the loading position and the unloading position. A transmission mechanism, wherein the positioning mechanism is disposed on the transmission mechanism; A flipping mechanism is connected to the transmission mechanism and can position the positioning mechanism at the loading position or the unloading position via the transmission mechanism.

2. The feeding device according to claim 1, characterized in that, When the positioning mechanism is located at the feeding position, the material tray is in a horizontal state; when the positioning mechanism is located at the unloading position, the material tray is in a vertical state.

3. The feeding device according to claim 1 or 2, characterized in that, The flipping mechanism includes a first driving component, a first rotating shaft, and a fixing block. The first rotating shaft is fixedly connected to the transmission mechanism through the fixing block, so that the first driving component can drive the first rotating shaft to drive the transmission mechanism to rotate.

4. The feeding device according to any one of claims 1-3, characterized in that, The positioning mechanism includes a placement plate, a baffle assembly, and a drive assembly; The placement plate is used to place the tray, the baffle assembly is disposed on the side of the placement plate, and the driving assembly can drive the baffle assembly to move toward or away from the placement plate to limit or release the tray.

5. The feeding device according to claim 4, characterized in that, The baffle assembly includes a first baffle, a second baffle, a third baffle, and a fourth baffle; The first baffle and the second baffle are respectively disposed on two opposite sides of the material tray placement plate, and the third baffle and the fourth baffle are respectively disposed on the other two opposite sides of the material tray placement plate.

6. The feeding device according to claim 5, characterized in that, Both the first baffle and the second baffle include a first positioning part and a second positioning part. The first positioning part is used to limit the material tray, and the second positioning part is used to limit the material in the material tray. When the positioning mechanism is located at the feeding position, the side closer to the third baffle is the feeding side of the material tray, and the third baffle is located above the fourth baffle.

7. The feeding device according to any one of claims 1-6, characterized in that, It also includes a cover plate mechanism, which is disposed on the positioning mechanism, and the cover plate mechanism has an open state and a closed state relative to the positioning mechanism; When the positioning mechanism is located at the feeding position, the cover plate mechanism is in the open state so that the tray can be positioned on the positioning mechanism; When the positioning mechanism is located at the feeding position, the cover plate mechanism is in the closed state to cover the material in the tray.

8. The feeding device according to claim 7, characterized in that, It also includes a support assembly, which includes a support and a limiting support rod, and the flipping mechanism is disposed on the support; The cover plate mechanism includes a cover plate, a second rotating shaft, a support shaft, and an elastic element. One side of the cover plate is rotatably mounted on the support via the second rotating shaft, and the other side is supported on the limiting support rod via the support shaft. Both ends of the cover plate are tightened on the support via the elastic element. When the positioning mechanism is in the feeding position, the limiting support rod can restrict the cover plate from rotating toward the positioning mechanism, so that the cover plate mechanism is in the open state; When the positioning mechanism is in the unloading position, the support shaft does not contact the limiting support rod, so that the elastic element can pull the cover plate into the closed state.

9. The feeding device according to claim 7 or 8, characterized in that, The transmission mechanism includes a base plate, a second driving component, a lead screw, and a nut seat; the positioning mechanism includes a placement plate; and the base plate is connected to the flipping mechanism. The second driving component is fixed to the base plate. One end of the lead screw is connected to the output end of the second driving component, and the other end passes through the nut seat. The nut seat is fixed to the placement plate. The second driving member can drive the lead screw to rotate, causing the placement plate to extend or retract from the cover plate mechanism under the drive of the nut seat.

10. The feeding device according to claim 9, characterized in that, The transmission mechanism further includes a first guide rail and a second guide rail. The first guide rail is disposed on the base plate, the second guide rail is disposed on the first guide rail, and the placement plate is disposed on the second guide rail to guide the placement plate to extend or retract from the cover plate mechanism.

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