Feeding device

Abstract

The utility model relates to a feeding device. The feeding device comprises a positioning mechanism and a conveying mechanism, the positioning mechanism is used for containing a material disc, the positioning mechanism is provided with a feeding position and a discharging position so that the material disc can have different set orientations when the material disc is located at the feeding position and the discharging position, and the positioning mechanism is arranged on the conveying mechanism; the turnover mechanism is connected with the conveying mechanism, and the positioning mechanism can be located at the feeding position or the discharging position through the conveying mechanism. The feeding device provided by the utility model can improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of material transportation equipment, and more specifically, to a feeding device. Background Art

[0002] In the battery production process, the trays of the steel shell feeders currently used are all placed horizontally. After the trays are transported and positioned by synchronous belts, the steel shells are moved to the designated positions in sequence by the suction cup mechanism. However, if the tray is in poor condition and easily deformed, the steel shells are easy to fall in the tray, causing the suction cup to be unable to absorb, reducing production efficiency. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for a feeding device.

[0004] According to one aspect of the utility model, there is provided a feeding device, comprising:

[0005] A positioning mechanism, the positioning mechanism is used to place the material tray, the positioning mechanism has a loading position and a unloading position, so that the material tray has different orientations at the loading position and the unloading position;

[0006] A transmission mechanism, wherein the positioning mechanism is arranged on the transmission mechanism;

[0007] The turning mechanism is connected to the transmission mechanism and can position the positioning mechanism at the loading position or the unloading position through the transmission mechanism.

[0008] Optionally, when the positioning mechanism is located at the loading position, the material tray is in a horizontal state, and when the positioning mechanism is located at the unloading position, the material tray is in a vertical state.

[0009] Optionally, the flipping mechanism includes a first driving member, a first rotating shaft and a fixed block, and the first rotating shaft is fixedly connected to the transmission mechanism through the fixed block, so that the first driving member can drive the first rotating shaft to drive the transmission mechanism to rotate.

[0010] Optionally, the positioning mechanism includes a placement plate, a baffle assembly and a drive assembly;

[0011] The placement plate is used to place the material tray, the baffle assembly is arranged at the side of the placement plate, and the driving assembly can drive the baffle assembly to move towards or away from the placement plate to limit or release the material tray.

[0012] Optionally, the baffle assembly includes a first baffle, a second baffle, a third baffle and a fourth baffle;

[0013] The first baffle plate and the second baffle plate are respectively arranged at two opposite side edges of the tray placement plate, and the third baffle plate and the fourth baffle plate are respectively arranged at the other two opposite side edges of the tray placement plate.

[0014] Optionally, the first baffle and the second baffle both include a first positioning portion and a second positioning portion, the first positioning portion is used to limit the position of the material tray, and the second positioning portion is used to limit the position of the material in the material tray;

[0015] When the positioning mechanism is located at the unloading position, the side close to the third baffle is the unloading side of the material tray, and the third baffle is located on the upper side of the fourth baffle. Optionally, a cover mechanism is further included, the cover mechanism is arranged on the positioning mechanism, and the cover mechanism has an open state and a closed state relative to the positioning mechanism;

[0016] When the positioning mechanism is located at the loading position, the cover mechanism is in the open state, so that the material tray can be located on the positioning mechanism;

[0017] When the positioning mechanism is located at the material unloading position, the cover mechanism is in the covering state to cover the material in the material tray.

[0018] Optionally, it further comprises a support assembly, the support assembly comprises a support and a limiting support rod, and the flip mechanism is arranged on the support;

[0019] The cover mechanism comprises a cover, a second rotating shaft, a supporting shaft and an elastic member, one side of the cover is rotatably arranged on the support via the second rotating shaft, the other side is supported on the limiting support rod via the supporting shaft, and both ends of the cover are tightened on the support via the elastic member;

[0020] When the positioning mechanism is located at the loading position, the limiting support rod can limit the cover plate from rotating toward the positioning mechanism, so that the cover plate mechanism is in the open state;

[0021] When the positioning mechanism is located at the unloading position, the support shaft does not contact the limiting support rod, so that the elastic member can pull the cover plate to be in the covering state.

[0022] Optionally, the transmission mechanism includes a base plate, a second driving member, a lead screw and a nut seat, the positioning mechanism includes a placement plate, and the base plate is connected to the flipping mechanism;

[0023] The second driving member is fixed on the bottom plate, one end of the lead screw is connected to the output end of the second driving member, and the other end is passed through the nut seat, and the nut seat is fixed on the placement plate;

[0024] 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 into the cover plate mechanism.

[0025] Optionally, the transmission mechanism further includes a first guide rail and a second guide rail, wherein 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 into the cover plate mechanism.

[0026] One technical effect of the utility model is that the feeding device provided by the utility model has a flipping mechanism and a transmission mechanism, and the flipping mechanism can drive the transmission mechanism to rotate so that the positioning mechanism can be located at the loading position and the unloading position, and the material tray has different set orientations at the loading position and the unloading position, so that the material is easy to take when unloading and the material is not easy to tip over, thereby improving production efficiency.

[0027] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0029] Figure 1 It is one of the schematic diagrams of a feeding device provided by the utility model (feeding).

[0030] Figure 2 yes Figure 1 A side view of the feeding device is provided.

[0031] Figure 3 This is the second schematic diagram of a feeding device provided by the utility model (unloading).

[0032] Figure 4 It is a front view (unloading) of a feeding device provided by the utility model.

[0033] Figure 5 It is a schematic diagram (loading) of a cover plate mechanism and a bracket assembly provided by the utility model.

[0034] Figure 6 yes Figure 5 A side view of the cover mechanism and bracket assembly is provided.

[0035] Figure 7 It is a schematic diagram of a transmission mechanism provided by the utility model.

[0036] Figure 8 yes Figure 7 A side view of the transmission mechanism is provided.

[0037] Fig. 9 This is one of the schematic diagrams of a positioning mechanism provided by the utility model (before positioning).

[0038] Fig.10 yes Fig. 9 A top view of the positioning mechanism is provided.

[0039] Fig.11 yes Fig. 9 Bottom view of the positioning mechanism is provided.

[0040] Fig.12 This is the second schematic diagram of the positioning mechanism provided by the utility model (after positioning).

[0041] Fig.13 yes Fig.12 A top view of the positioning mechanism is provided.

[0042] 1. Positioning mechanism; 11. Placement plate; 12. First baffle; 13. Second baffle; 14. Third baffle; 15. Fourth baffle; 16. First positioning part; 17. Second positioning part; 18. Driving assembly;

[0043] 2. Transmission mechanism; 21. Bottom plate; 22. Lead screw; 23. Second driving member; 24. Nut seat; 25. First guide rail; 26. Second guide rail;

[0044] 3. Flipping mechanism; 31. First driving member; 32. First rotating shaft; 33. Fixed block;

[0045] 4. Cover plate; 41. Cover plate; 42. Second rotating shaft; 43. Support shaft; 44. Elastic member;

[0046] 5. Bracket assembly; 51. Support; 52. Limiting support rod;

[0047] 6. Material tray; 7. Material. DETAILED DESCRIPTION

[0048] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0049] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0050] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0051] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0052] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0053] like Figures 1 to 13 As shown, according to one aspect of the utility model, there is provided a feeding device, comprising: a positioning mechanism 1, the positioning mechanism 1 is used to place a material tray 6, the positioning mechanism 1 has a loading position and a unloading position, so that the material tray 6 has different orientations at the loading position and the unloading position; a conveying mechanism 2, the positioning mechanism 1 is arranged on the conveying mechanism 2; a flipping mechanism 3, the flipping mechanism 3 is connected to the conveying mechanism 2, and can make the positioning mechanism 1 located at the loading position or the unloading position through the conveying mechanism 2.

[0054] In this embodiment, the material tray 6 is placed on the positioning mechanism 1, and the positioning mechanism 1 can position the material tray to achieve accurate material discharge. In actual applications, some materials 7 are usually placed in sequence in the material tray 6, which makes it easy to cause material spillage when discharging.

[0055] For example, for columnar materials 7 such as battery steel shells, since the material tray 6 is placed horizontally during loading and unloading, when the vacuum suction cup vertically absorbs the steel shell, it is not conducive to unloading on the one hand, and it is easy to fall over when the material tray 6 is slightly tilted or the material 7 in the material tray 6 is bumped.

[0056] The feeding device provided in the present application has a flipping mechanism 3 and a transmission mechanism 2, wherein the flipping mechanism 3 drives the transmission mechanism 2 to rotate, so that the positioning mechanism 1 set on the transmission mechanism 2 can be located at the loading position and the unloading position, and the material tray 6 has different setting directions at the loading position and the unloading position, so that the material 7 is easy to take when unloading, and the material 7 is not easy to fall when unloading, thereby improving production efficiency. The loading position refers to the position described by the positioning mechanism when the material tray with the material is loaded onto the positioning mechanism as a whole, and the unloading position refers to the position described by the positioning mechanism when the material in the material tray is unloaded.

[0057] Specifically, in the above embodiment, when the positioning mechanism 1 is located at the loading position, the flipping mechanism 3 can make the material tray 6 placed on the positioning mechanism 1 in an orientation that is convenient for assembly through the transmission mechanism 2, for example, make the material tray 6 in a horizontal state, so as to facilitate the placement of materials 7 in sequence. When the external unloading device needs to unload materials, the flipping mechanism 3 makes the material tray 6 on the positioning mechanism 1 in another orientation that is convenient for unloading materials through the transmission mechanism 2, for example, the material tray 6 is tilted from the horizontal state to a certain angle with the horizontal state, so that the height of the unloading side is higher than the other side, and the materials 7 placed in the material tray 6 are in a certain stacking state, and the external unloading device can directly absorb the materials 7 from top to bottom. In the unloading process, the stacked materials 7 have a certain inclination and one side is restricted by the material tray 6, so that the materials 7 are not easy to fall over, thereby improving production efficiency.

[0058] In the above embodiment, the setting direction of the material tray 6 at the loading position and the unloading position can be adaptively adjusted according to the shape and placement of the material 7 in the material tray 6. It has high flexibility and a wide range of adaptability, which improves production efficiency and reduces production costs.

[0059] Alternatively, if Figures 1 to 4 As shown, when the positioning mechanism 1 is located at the loading position, the material tray 6 is in a horizontal state, and when the positioning mechanism 1 is located at the unloading position, the material tray 6 is in a vertical state.

[0060] Specifically, in some embodiments, the transmission mechanism 2 drives the positioning mechanism 1 to rotate through the flipping mechanism 3 to set the material tray 6 to a horizontal state or a vertical state, that is, the flipping mechanism 3 can flip the positioning mechanism 1 90° through the transmission mechanism 2 to achieve the set orientation of the material tray 6. When the material tray 6 is in a vertical direction, a blocking member such as a cover plate 41 can be provided on the other side of the material 7 away from the material tray 6 to prevent the material 7 from falling.

[0061] When loading materials, the material tray 6 is in a horizontal state, and when unloading materials, the material tray 6 is flipped to a vertical state to facilitate the external unloading device to unload the materials. At this time, the materials 7 are in a lying state and stacked in the material tray 6 in sequence. During the unloading process, the materials are unloaded from top to bottom in sequence. The materials that are already in a lying state will not fall over, which further improves the production efficiency.

[0062] Alternatively, if Figures 1 to 4 As shown, the flip mechanism 3 includes a first driving member 31, a first rotating shaft 32 and a fixing block 33. The first rotating shaft 32 is fixedly connected to the transmission mechanism 2 through the fixing block 33, so that the first driving member 31 can drive the first rotating shaft 32 to drive the transmission mechanism 2 to rotate.

[0063] 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 fixing block 33, and the fixing block 33 is fixed on the transmission mechanism 2, so that under the drive of the first driving member 31, all components of the transmission mechanism 2 can rotate accordingly, so that the positioning mechanism 1 drives the material tray 6 to rotate from the loading position to the unloading position, or from the unloading position to the loading position, to achieve the change of the placement state of the material 7 in the material tray 6. Among them, the first driving member 31 can be a motor, and the setting of the fixing block 33 facilitates the assembly of the first rotating shaft 32 and the transmission mechanism 2.

[0064] Alternatively, if Figures 9 to 13 As shown, the positioning mechanism 1 includes a placement plate 11, a baffle assembly and a drive assembly 18; the placement plate 11 is used to place the material tray 6, the baffle assembly is arranged at the side of the placement plate 11, and the drive assembly 18 can drive the baffle assembly to move toward or away from the placement plate 11 to limit or release the material tray 6.

[0065] Specifically, in this embodiment, the placement plate 11 is arranged to provide a placement space for the material tray 6, and the baffle assembly is arranged so that before the material tray 6 is placed on the placement plate 11, the baffle assembly is driven by the driving assembly 18 to move in a direction away from the placement plate 11, so as to facilitate the placement of the material tray 6. After the material tray 6 is placed on the placement plate 11, the baffle assembly is driven by the driving assembly 18 to move in a direction close to the placement plate 11, clamping the material tray 6, and realizing the limiting fixation of the material tray 6, and this limiting method has a simple structure and is easy to realize.

[0066] Among them, the baffle assembly can be designed to match the shape of the material tray 6. For example, if the material tray 6 is circular, more than two baffles with a shape matching the outer edge of the circular material tray 6 can be set to limit and fix it. If the material tray 6 is square, a baffle can be set on each side to limit and fix it. In addition, the drive assembly 18 can be implemented by selecting a cylinder that matches the number of baffles, and the utility model does not impose any restrictions on this.

[0067] Alternatively, if Figures 9 to 13 As shown, the baffle assembly includes 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 respectively arranged at two opposite sides of the tray 6 placement plate 11, and the third baffle 14 and the fourth baffle 15 are respectively arranged at the other two opposite sides of the tray 6 placement plate 11.

[0068] Specifically, in this embodiment, the material tray 6 is generally designed to be rectangular or square, and a first baffle 12, a second baffle 13, a third baffle 14 and a fourth baffle 15 are respectively arranged on each side thereof, so that each side of the material tray 6 can be limited, thereby improving the stability of the material tray 6. Among them, the drive assembly 18 can be matched with four cylinders to independently control them and improve the flexibility of the equipment.

[0069] Alternatively, if Figures 9 to 13 As shown, the first baffle 12 and the second baffle 13 both include a first positioning portion 16 and a second positioning portion 17, the first positioning portion 16 is used to limit the material tray 6, and the second positioning portion 17 is used to limit the material 7 in the material tray 6; when the positioning mechanism 1 is located at the unloading position, the side close to the third baffle 14 is the unloading side of the material tray 6, and the third baffle 14 is located on the upper side of the fourth baffle 15.

[0070] Specifically, in this embodiment, the first positioning portion 16 limits the position of the material tray 6, and the second positioning portion 17 limits the position of the material 7, so that the material tray 6 and the material 7 in the material tray 6 can remain stable during loading, unloading or other operation processes. Among them, the second positioning portion 17 can be designed with multiple notches that match the external shape of the material 7 to further improve the reliability of limiting the position of the material 7, refer to Figures 9 and 10 as well as Figure 12 to Figure 13 .

[0071] When in the material unloading position, the side close to the third baffle 14 is the material unloading side of the material tray 6, and the third baffle 14 is located on the upper side of the fourth baffle 15, and the third baffle 14 and the fourth baffle 15 only position the material tray 6. When the third baffle 14 is located on the upper side of the fourth baffle 15, when unloading, the stability of the material 7 and the material tray 6 can be guaranteed without affecting the efficiency of unloading. Among them, the third baffle 14 is located on the upper side of the fourth baffle 15, which means that in the vertical direction, the third baffle 14 is located higher than the fourth baffle 15, that is, the third baffle 14 can be located directly above the fourth baffle 15, or it can be located obliquely above the fourth baffle 15, and the utility model does not limit this.

[0072] Alternatively, if Figures 5 and 6 As shown, the feeding device also 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 covering state relative to the positioning mechanism 1. When the positioning mechanism 1 is located at the loading position, the cover plate 4 is in the open state to enable the material tray 6 to be located on the positioning mechanism 1; when the positioning mechanism 1 is located at the unloading position, the cover plate 4 is in the covering state to cover the material 7 in the material tray 6.

[0073] Specifically, in actual application, the material tray 6 is usually in a horizontal state at the loading position, and is usually in a vertical state at the unloading position. The setting of the cover plate 4 enables the cover plate 4 and the material tray 6 to limit the material 7 in the front and rear directions when at the unloading position, thereby preventing the material 7 from falling at the unloading position, and is in an open state when at the loading position, thereby facilitating the placement of the material tray 6 or the material 7, further improving the reliability of the device.

[0074] Alternatively, if Figures 5 and 6 As shown, the feeding device also includes a bracket assembly 5, which includes a support 51 and a limiting support rod 52, and the flip mechanism 3 is arranged on the support 51; the cover plate 4 includes a cover plate 41, a second rotating shaft 42, a support 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, and the other side is supported on the limiting support rod 52 through the support shaft 43, and both ends of the cover plate 41 are tightened on the support 51 through the elastic member 44. When the positioning mechanism 1 is located in the loading position, the limiting support rod 52 can limit the cover plate 41 from rotating toward the positioning mechanism 1, so that the cover plate 4 is in the open state; when the positioning mechanism 1 is located in the unloading position, the support shaft 43 does not contact the limiting support rod 52, so that the elastic member 44 can pull the cover plate 41 to be in the covering state.

[0075] Specifically, in this embodiment, the second rotating shaft 42 and the elastic member 44 are provided so that the cover plate 41 can cover the material tray 6 to limit the position of the material 7 to prevent it from falling, and to prevent the material tray 6 from tilting or shifting. The support shaft 43 and the limiting support rod 52 are provided so that the cover plate 41 can be in an open state, which is convenient for placing and feeding the material tray 6. This structural form is relatively simple and does not occupy too much device space.

[0076] Alternatively, if Figures 7 and 8 As shown, the transmission mechanism 2 includes a base plate 21, a second driving member 23, a lead screw 22 and a nut seat 24, and the positioning mechanism 1 includes a placement plate 11, and the base plate 21 is connected to the flipping mechanism 3; the second driving member 23 is fixed on the base plate 21, one end of the lead screw 22 is connected to the output end of the second driving member 23, and the other end is passed through the nut seat 24, and 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 extended or retracted to the cover plate 4 under the drive of the nut seat 24.

[0077] Specifically, when the positioning mechanism 1 is at the unloading position, the cover plate 4 is covered on the outside of the material 7. In this embodiment, by providing the second driving member 23, the lead screw 22 and the nut seat 24, when unloading, the second driving member 23 can drive the placement plate 11 to extend out of the cover plate 4, so that the material 7 can be exposed in a row, which is convenient for the external unloading mechanism to unload the materials in sequence. When the positioning mechanism 1 is at the loading position, the second driving member 23 can drive the lead screw 22 to rotate, and drive the placement plate 11 to extend out of the cover plate 4 through the nut seat 24, which is convenient for placing the material tray 6 or feeding. After the material tray 6 is placed and positioned, the second driving member 23 drives the lead screw to rotate in the opposite direction, so that the placement plate 11 retracts into the cover plate 4 along with the nut seat 24.

[0078] In the above embodiment, the arrangement of the second driving member 23, the lead screw 22 and the nut seat 24 makes the loading and unloading operations simpler, further improving the production efficiency, and has a simple structure, occupies less space, and reduces the production cost.

[0079] Alternatively, if Figures 7 and 8 As shown, the transmission mechanism 2 also includes 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 placement plate 11 is arranged on the second guide rail 26 to guide the placement plate 11 to extend or retract the cover plate 4.

[0080] Specifically, in this embodiment, the provision of the first guide rail 25 and the second guide rail 26 can, on the one hand, facilitate the sliding of the placement plate 11 relative to the base plate 21 to achieve the purpose of extending or retracting the cover plate 4; on the other hand, by providing two guide rails, the guide rail length can be shortened and long-distance transportation can be achieved, thereby reducing the volume of the equipment and improving space utilization.

[0081] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0082] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

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

2. The feeding device according to claim 1, characterized in that: When the positioning mechanism is located at the loading position, the material tray is in a horizontal state, and 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 flip mechanism includes a first driving member, a first rotating shaft and a fixed block. The first rotating shaft is fixedly connected to the transmission mechanism through the fixed block, so that the first driving member can drive the first rotating shaft to drive the transmission mechanism to rotate.

4. The feeding device according to claim 1 or 2, 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 material tray, the baffle assembly is arranged at the side of the placement plate, and the driving assembly can drive the baffle assembly to move towards or away from the placement plate to limit or release the material 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 plate and the second baffle plate are respectively arranged at two opposite side edges of the tray placement plate, and the third baffle plate and the fourth baffle plate are respectively arranged at the other two opposite side edges of the tray placement plate.

6. The feeding device according to claim 5, characterized in that: The first baffle plate and the second baffle plate each include a first positioning portion and a second positioning portion, the first positioning portion is used to limit the position of the material tray, and the second positioning portion is used to limit the position of the material in the material tray; When the positioning mechanism is located at the unloading position, the side close to the third baffle is the unloading side of the material tray, and the third baffle is located on the upper side of the fourth baffle.

7. The feeding device according to claim 1 or 2, characterized in that: It also includes a cover mechanism, the cover mechanism is arranged on the positioning mechanism, and the cover mechanism has an open state and a closed state relative to the positioning mechanism; When the positioning mechanism is located at the loading position, the cover mechanism is in the open state, so that the material tray can be located on the positioning mechanism; When the positioning mechanism is located at the material unloading position, the cover mechanism is in the covering state to cover the material in the material tray.

8. The feeding device according to claim 7, characterized in that: It also includes a bracket assembly, the bracket assembly includes a support and a limiting support rod, and the flip mechanism is arranged on the support; The cover mechanism comprises a cover, a second rotating shaft, a supporting shaft and an elastic member, one side of the cover is rotatably arranged on the support via the second rotating shaft, the other side is supported on the limiting support rod via the supporting shaft, and both ends of the cover are tightened on the support via the elastic member; When the positioning mechanism is located at the loading position, the limiting support rod can limit 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 located at the unloading position, the support shaft does not contact the limiting support rod, so that the elastic member can pull the cover plate to be in the covering state.

9. The feeding device according to claim 7, characterized in that: The transmission mechanism includes a bottom plate, a second driving member, a lead screw and a nut seat, the positioning mechanism includes a placement plate, and the bottom plate is connected to the flipping mechanism; The second driving member is fixed on the bottom plate, one end of the lead screw is connected to the output end of the second driving member, and the other end is passed through the nut seat, and the nut seat is fixed on the placement plate; 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 into the cover plate mechanism.

10. The feeding device according to claim 9, characterized in that: The transmission mechanism also includes a first guide rail and a second guide rail, wherein the first guide rail is arranged on the bottom 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 into the cover plate mechanism.

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