A feeding mechanism and feeding equipment for thin parts

Abstract

This utility model relates to the field of feeding equipment technology, specifically to a feeding mechanism and feeding equipment for thin parts. The feeding mechanism includes a hopper, a screening slide seat, a feeding component, and a pushing component. The hopper is used to hold the thin parts. The screening slide seat has a screening slide extending from inside the hopper to the outside, with the extension angle corresponding to a preset feeding angle for the thin parts, so that the thin parts are output at the end of the screening slide at the preset feeding angle. The feeding component includes a feeding section with a feeding trough, which is movably arranged and extends into the hopper. The feeding trough moves the thin parts in the hopper by means of the movement of the feeding component. The pushing component includes a pushing end extending into the hopper, which is movably arranged to push the thin parts in the feeding trough to the screening slide. Thus, the end of the screening slide can continuously output thin parts, achieving continuous feeding of thin parts at a specific angle.

Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, specifically to a feeding mechanism and feeding equipment for thin parts. Background Technology

[0002] With the development of injection molding technology, injection molded products with various complex curved surfaces have been created. These injection molded products often incorporate one or more thin parts, such as sheet metal or thin chips. Due to the complex curved surface features of the product, these thin parts are arranged within the product at specific angles. Before the product is injection molded, the thin parts need to be pre-installed into the injection mold at the required angles.

[0003] For thin parts, especially those less than 10mm thick and with length and width exceeding three times their thickness, stability is typically achieved when the surface formed by the length and width is facing down, without external force. Maintaining stability by placing either the surface formed by the length and thickness or the surface formed by the width and thickness facing down is difficult, thus posing challenges for feeding materials at specific angles. For thin parts with complex structures, the difficulty in picking them up, coupled with an unstable center of gravity, further exacerbates the challenge of feeding materials at specific angles. Currently, existing conventional feeding mechanisms are insufficient to feed thin parts at certain specific angles, failing to meet the requirements of injection molds for feeding and installing thin parts at specific angles. Summary of the Invention

[0004] The purpose of this utility model is to provide a feeding mechanism and feeding equipment for thin parts, so as to realize the feeding of thin parts at a specific angle.

[0005] To achieve the above objectives, the technical solution of this utility model includes:

[0006] A feeding mechanism for thin parts includes:

[0007] A hopper, used to hold thin parts;

[0008] A screening slide seat is provided with a screening slide, which extends from inside the hopper to outside the hopper. The extension angle of the screening slide corresponds to the preset feeding angle of the thin part, so that the thin part is output at the end of the screening slide at the preset feeding angle.

[0009] A feeding component, the feeding component including a feeding section with a feeding trough, the feeding component being movably disposed and the feeding section extending into the hopper, wherein by means of the movement of the feeding component, the feeding trough switches between a position engaging with the screen slide or a position away from the screen slide, and during the switching process, the feeding trough carries the thin parts in the hopper to move.

[0010] A pusher includes a pusher end extending into the hopper, the pusher being movably disposed such that, by means of movement of the pusher, the pusher end moves relative to the feed trough to push thin parts in the feed trough to the screen chute.

[0011] In one embodiment, the feeding member is reciprocatingly arranged. Along the direction of movement of the feeding member, the feeding trough is divided into a feeding section and a screening section. The end of the feeding section away from the screening section has an opening so that the thin part can enter the feeding trough by means of the movement of the feeding member. The screening section is used to connect the screening slide and accommodate the pushing end of the pusher to slide therein, so as to push the thin part in the screening section toward the direction of the screening slide.

[0012] In one embodiment, the feed section has an inclined surface such that the width of the feed section gradually decreases, and the width of the feed section is greatest at the opening.

[0013] In one embodiment, the depth of the screening section corresponds to the thickness of the thin part, so that the screening section can only accommodate one thin part in the depth direction of the feeding trough.

[0014] In one embodiment, the feeding component reciprocates linearly, the extension direction of the screening chute is perpendicular to the movement direction of the feeding component, the width of the screening chute is smaller than that of the screening section, and a screening ramp is provided on one side of the screening chute, the screening ramp extending in a direction away from the bottom surface of the feeding trough, so that the thin parts located in the screening section and unable to enter the screening chute fall off.

[0015] In one embodiment, the direction of movement of the feeding component is at an angle to the horizontal direction, thereby using gravity to cause the thin part that exceeds the feeding trough to fall back into the hopper.

[0016] In one embodiment, the pusher moves in a linear motion, and its direction of motion is the same as the extension direction of the screen slide.

[0017] In one embodiment, a discharge seat is provided on one side of the screening slide seat, and the discharge seat is provided with a discharge component. The end of the discharge component extends to the bottom surface of the screening slide to push out the thin part of the screening slide, thereby realizing material feeding.

[0018] In one embodiment, the hopper is installed on the screening slide seat, and the inner wall of the hopper and the screening slide seat together form a material placement cavity for accommodating the thin part; the screening slide seat is provided with a feeding slide, and the feeding part of the feeding member is slidably disposed on the feeding slide, thereby realizing the switching of the feeding trough between a position connected to the screening slide and a position away from the screening slide; the screening slide seat is provided with a pushing slide, and the pushing member is slidably disposed on the pushing slide, and the feeding part of the feeding member... The feeding trough is disposed between the screening slide and the pushing slide, thereby pushing the thin part in the feeding trough to the screening slide by means of the reciprocating movement of the pushing component in the pushing slide; the feeding component is connected to and driven by a feeding cylinder, and the pushing component is connected to and driven by a pushing cylinder, and the pushing cylinder is installed on the screening slide seat; the thin part is a part with a thickness of less than 10mm and a length and width that are more than 3 times the thickness.

[0019] The technical solution of this utility model also includes:

[0020] A feeding device includes at least two sets of the above-mentioned feeding mechanisms; wherein the screening slide seat and the hopper of the two sets of feeding mechanisms are shared, the screening slides of the two sets of feeding mechanisms are arranged on both sides of the same screening slide seat, and each feeding mechanism is correspondingly provided with a feeding component and a pushing component.

[0021] The beneficial effects of this utility model are:

[0022] This invention corresponds the extension angle of the screening chute to the preset feeding angle of the thin part, so that the thin part is output at the end of the screening chute at the preset feeding angle. The preset feeding angle is a specific angle. The feeding component can continuously supply the thin part in the hopper to the screening chute, and then the pushing component continuously pushes the thin part, so that the end of the screening chute can continuously output the thin part, realizing the continuous feeding of the thin part at a specific angle. Attached Figure Description

[0023] Figure 1 This is a perspective view of the feeding mechanism according to an embodiment of the present utility model.

[0024] Figure 2 This is an exploded view of the feeding mechanism according to an embodiment of the present utility model.

[0025] Figure 3 This is a perspective view of the feeding mechanism of this utility model embodiment without the hopper.

[0026] Figure 4 yes Figure 3 Enlarged view of point A.

[0027] Figure 5 This is a cross-sectional view of the feeding mechanism according to an embodiment of the present utility model.

[0028] Figure 6 This is a perspective view of the feeding device according to an embodiment of the present utility model.

[0029] Figure 7 This is a front view of one side of the feeding device according to an embodiment of the present utility model.

[0030] Figure 8 This is a front view of the feeding device from the other side of an embodiment of this utility model. Detailed Implementation

[0031] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0032] See Figures 1 to 3 As shown, this utility model discloses a feeding mechanism 100 for thin parts, used for feeding thin parts at a specific angle. The thin parts described in this utility model refer to parts with a thickness of less than 10mm and a length and width both exceeding three times the thickness. Without external force, thin parts are subjected only to gravity, and typically require the surface formed by their length and width to be facing downwards for stable placement. If the surface formed by the length and thickness, or the surface formed by the width and thickness, is to be facing downwards, it becomes difficult to maintain stability.

[0033] This invention does not impose excessive restrictions on the specific shape of thin parts; this embodiment is... Figure 4 The rectangular planar sheet structure shown can be used in other embodiments as well as for other shapes such as circular, elliptical, or irregularly shaped sheet structures, or curved sheet structures with a certain curvature. For rectangular planar sheet structures, the length, width, and height are as understood conventionally in the art, i.e., the length, width, and height of the three sides intersecting at a vertex are, in descending order, the length, width, and height. For planar sheet parts of other shapes, a circumscribing hexahedron is constructed for the planar sheet part, and the length, width, and height of the circumscribing hexahedron are used as the length, width, and height of the planar sheet part. For curved sheet structures, the thickness is as understood conventionally in the art, and a circumscribing rectangle is constructed on a plane perpendicular to the thickness direction, and the length and width of the circumscribing rectangle are used as the length and width of the sheet part.

[0034] See Figures 1 to 5As shown, the feeding mechanism for this thin part includes a hopper 1, a screening slide seat 2, a feeding component 3, a pushing component 4, and a discharging component 5 (discharging component 5 is indicated in...). Figure 5 The hopper 1 is used to accommodate thin parts B. More specifically, the hopper 1 is installed on the screening slide seat 2, and the inner wall of the hopper 1 and the screening slide seat 2 together form a feeding cavity 10 for accommodating thin parts B. The screening slide seat 2 is provided with a screening slide 21, which extends from the inside of the hopper 1 to the outside of the hopper 1. The extension angle of the screening slide 21 corresponds to the preset feeding angle of the thin parts B, so that the thin parts B are output at the end of the screening slide 21 at the preset feeding angle.

[0035] The feeding component 3 is a long plate-shaped structure. Its upper end has a feeding section 31 with a feeding trough 310, and its lower end is connected to a feeding cylinder 30. The feeding component 3 is movably arranged, and its feeding section extends into the hopper 1. More specifically, as the feeding cylinder 30 extends and retracts, the feeding section 31 of the feeding component 3 performs linear reciprocating motion within the material placement cavity 10, thereby pushing the thin parts B in the material placement cavity 10 upward, and leaving a portion of the thin parts B in the feeding trough 310. With the movement of the feeding component 3, the feeding trough 310 switches between a position connected to the screen slide 21 or a position away from the screen slide 21, and during this switching process, the feeding trough 310 carries the thin parts B in the hopper 1.

[0036] The pusher 4 includes a pusher end 41 extending into the hopper 1. The pusher 4 is movably disposed, and by means of the movement of the pusher 4, the pusher end 41 moves relative to the feeding trough 310 to push the thin part B in the feeding trough 310 to the screening chute 21. More specifically, the pusher end 41 is disposed at one end of the pusher 4, and the other end of the pusher 4 is connected to a pusher cylinder 40. The pusher 4 reciprocates linearly with the extension and retraction of the pusher cylinder 40, thereby pushing the thin part B in the feeding trough 310 to the screening chute 21.

[0037] The discharge component 5 is located at the end of the screening slide 21 furthest from the pusher 4. In this embodiment, the discharge component 5 is a push rod, the end of which is located on the bottom surface of the screening slide 21 to push out the thin part B from the screening slide 21, thereby achieving material feeding. The direction in which the thin part B moves within the screening slide 21 is defined as forward, and the opposite direction is backward. The pushing end 41 of the pusher 4 acts directly on the thin part B in the trough 310, causing the thin part B located at the rear to gradually push the thin part B located at the front, thereby causing the thin part B to gradually move forward along the screening slide 21 until it is pushed to the front end of the screening slide 21. Then, the discharge component 5 at the front end of the screening slide 21 pushes out the thin part B to achieve material feeding.

[0038] In this embodiment, the screening chute 21 is set to extend in a straight line, and its extension angle is the same as the preset feeding angle of the thin part B; in other embodiments, the screening chute 21 may be arc-shaped, and its extension angle may also be changed accordingly, so as to satisfy the thin part being output to the feeding object at a preset feeding angle.

[0039] The preset feeding angle of thin part B is pre-set and determined according to the specific structure of the thin part and the angle required by the feeding object (the feeding object refers to the object to which the thin part is supplied, such as an injection mold).

[0040] In this embodiment, the movement directions of the screening chute 21 and the pusher 4 are on the same straight line, and the movement direction of the feeder 3 is perpendicular to this straight line. The feeder 3 moves approximately vertically, allowing the thin part B, whose angle does not meet the requirements for entering the screening chute 21, to fall back into the storage cavity 10 under gravity. The front end of the screening chute 21 is lower than its rear end, so the thin part B moves diagonally downwards along a straight line within the screening chute 21. In other embodiments, the feeder 3 may also move in other directions, such as a direction close to horizontal, but with a certain angle to the horizontal direction, so that the thin part B can fall back into the storage cavity 10 under gravity.

[0041] See Figure 2 As shown, to make the movement of the feeding part 3 of the feeding component 3 more stable in the screen slide seat 2, the screen slide seat 2 is provided with a feeding slide 22. The feeding part 31 of the feeding component 3 is slidably disposed in the feeding slide 22, thereby realizing the switching between the feeding trough 310 and the position of connecting with the screen slide 21 or away from the screen slide 21. Due to the existence of the feeding slide 22, it not only guides the movement of the feeding component 3, but also limits the feeding component 3, so that when the feeding trough 310 connects with the screen slide 21, the relative position of the two is more accurate, thereby improving the efficiency of feeding the thin part B from the feeding trough 310 to the screen slide 21.

[0042] Correspondingly, in order to make the movement of the pusher 4 in the screen slide seat 2 more stable, the screen slide seat 2 is provided with a pusher slide 23, the pusher 4 is slidably disposed in the pusher slide 23, and the feeding groove 310 of the feeder 3 is disposed between the screen slide 21 and the pusher slide 23, so that the thin part B in the feeding groove 310 is pushed to the screen slide 21 by means of the reciprocating movement of the pusher 4 in the pusher slide 23.

[0043] See Figure 5As shown, the feeding member 3 in this embodiment is reciprocating. The double-headed arrow ③ in the figure indicates the direction of movement of the feeding member 3. Along the direction of movement of the feeding member 3, the feeding trough 310 is divided into a feeding section 311 and a screening section 312. The end of the feeding section 311 away from the screening section 312 has an opening 313. This opening 313 allows the thin part B to enter the feeding trough 310 by means of the movement of the feeding member 3. The feeding section 311 has an inclined surface 3110 so that the width of the feeding section 311 gradually decreases, and the width of the groove at the opening 313 is the largest. The screening section 312 is used to connect to the screening slide 21 and to accommodate the pushing end 41 of the pusher 4 to slide therein. The double-headed arrow ④ in the figure indicates the direction of movement of the pusher 4, so as to push the thin part B in the screening section 312 toward the direction of the screening slide 21. The unidirectional arrow in the figure indicates the direction of movement of the thin part B. The feeding trough 310 is divided into a feeding section 311 and a screening section 312, thereby extending the length of the feeding trough 310 in its moving direction. This allows more thin parts B to be carried during a single up-and-down movement of the feeding component 3, thus improving feeding efficiency. After the thin parts B enter the feeding trough 310, they are screened by the screening section 312. In conjunction with the pusher component 4, multiple thin parts B located in the feeding trough 310 are screened. Specifically, the screening method involves setting the depth of the screening section 312 to correspond to the thickness of the thin parts B, so that in the depth direction of the feeding trough 310, the screening section 312 can only accommodate one thin part B. This allows the thin parts B to be arranged one by one along the screening section 312 and enter the screening chute 21 one by one, achieving sequential feeding. In this embodiment, the groove depth of the screening section 312 is set to be slightly greater than the thickness of the thin part B. In other embodiments, the groove depth of the screening section 312 is determined by those skilled in the art based on the specific structural dimensions of the thin part B, so that the screening section 312 can only accommodate one thin part B.

[0044] The method for screening thin parts B between the screening section 312 and the screening chute 21 also includes: in the width direction of the screening chute 21, the size of the screening chute 21 is smaller than that of the screening section 312. Since the extension direction of the screening chute 21 is perpendicular to the moving direction of the feeder 3, the size of the screening section 312 in the width direction of the screening chute 21 refers to its length in the vertical direction. That is, as the thin part B moves from the screening section 312 to the screening chute 21, its accommodating space gradually decreases. This is beneficial for gradually adjusting the angle of the thin part B and can also screen out thin parts B that cannot enter the screening chute 21, returning them to the hopper 1 for the next feeding. In order to screen out thin parts B without clogging the screening chute 21, a screening ramp 210 is provided on one side of the screening chute 21. The screening ramp 210 extends in a direction away from the bottom surface of the feed trough 310, so that thin parts B located in the screening section 312 that cannot enter the screening chute 21 fall off. For thin part B with incorrect angle, for example Figure 4The thin part B' shown is placed with its length direction facing up and down. The width of the screening chute 21 corresponds to the width of the thin part B. Therefore, the thin part B', which is placed with its length direction facing up and down, cannot enter the screening chute 21. With the cooperation of the pusher 4, the thin part B' gradually moves towards the screening chute 21. The screening ramp 210 can interfere with the thin part B' which is not at the correct angle and make it fall, thus achieving the purpose of screening.

[0045] See Figure 1 , Figure 2 and Figure 5 As shown, a discharge seat 6 is provided on one side of the screening slide 2, and a discharge component 5 is provided on the discharge seat 6. The end of the discharge component 5 extends to the bottom surface of the screening slide 21 to push out the thin part B of the screening slide 21, thereby realizing material feeding. One end of the discharge component 5 is also connected to a discharge cylinder 50, which pushes out the thin part B of the screening slide 21 as the discharge cylinder 50 extends and retracts. In addition, the screening slide 21 extends to the discharge seat 6. As the width of the screening slide 21 gradually decreases, the thin part B can be positioned more accurately, making the feeding angle more precise.

[0046] The process of using this utility model is as follows:

[0047] First, the thin parts B are poured into the hopper 1. The feeder 2 pushes upward, leaving some of the thin parts B in the feed chute 310. The inclined surface 3110 of the feeding section 311 allows more thin parts B to remain in the feed chute 310. Under the action of the pusher 4, thin parts B with the correct angle are pushed into the screening chute 21, while thin parts B with incorrect angle are screened out on the screening ramp 210 and fall back into the hopper 1. When there are fewer thin parts B in the feed chute 310, the feeder 3 descends and buries itself in the hopper 1. When the feeder 3 pushes out again, some thin parts B re-enter the feed chute 310, starting the next screening process. During this process, with the help of the movement of the feeder 3, the feed chute 310 switches between a position connected to the screening chute 21 and a position away from the screening chute 21. The pusher 4 reciprocates, and the thin parts B in the screening slide 21 move forward in sequence and are precisely positioned in the discharge seat 6. After precise positioning, the discharger 5 pushes them out to complete the feeding at a specific angle.

[0048] In the above embodiments, both the feeding component 3 and the pushing component 4 are linear reciprocating motions. In other embodiments, the feeding component 3 and the pushing component 4 can be fed and pushed in other motion modes, for example, the feeding component 3 can swing upwards to bring the thin part B upwards, and the pushing component 4 can swing in the front and back direction on the feeding groove. During the forward swing, its pushing end contacts the thin part B in the feeding groove, thereby pushing the thin part B forward.

[0049] The screening slide 21 of this utility model extends from the screening slide seat 2 to the discharge seat 6. By replacing the screening slide seat 2 and the discharge seat 6, it can be adapted to feed different thin parts at different angles. The screening slide 21 can also be set as a detachable structure so that the screening slide 21 can be replaced according to the different structures of the thin parts and the feeding angle.

[0050] See Figures 6 to 8 As shown, this utility model also discloses a feeding device with the aforementioned feeding mechanism 100. This feeding device includes four sets of feeding mechanisms 100. Two sets of feeding mechanisms 100 share a hopper 1, a screening slide seat 2, and a discharge seat 6. Each screening slide seat 2 has two screening slides 21, which are arranged opposite each other on both sides of the screening slide seat 2. Each screening slide 21 is correspondingly provided with a discharge component 3, a pusher component 4, and a feeder component 5, thus forming four sets of feeding mechanisms. Each set of feeding mechanisms feeds independently, enabling feeding of thin parts with different structures and at different angles. The screening slide seats 2 are arranged opposite each other, with the front end of each screening slide 21 located at the end closest to the other. The discharge component 3, pusher component 4, and feeder component 5 are arranged correspondingly around the extension direction of the screening slide 21, thus the feeding device has four sets of feeding mechanisms in the front, back, left, and right directions. Of course, in other embodiments, the feeding device may also be provided with only one or two sets of feeding mechanisms 100. If two sets of feeding mechanisms 100 are provided, a hopper 1, a screen slide seat 2, a discharge seat 6, two discharge components 3, two pusher components 4, two feeder components 5, and corresponding drive cylinders are sufficient.

[0051] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A feeding mechanism for thin parts, characterized in that, include: A hopper, used to hold thin parts; A screening slide seat is provided with a screening slide, which extends from inside the hopper to outside the hopper. The extension angle of the screening slide corresponds to the preset feeding angle of the thin part, so that the thin part is output at the end of the screening slide at the preset feeding angle. A feeding component, the feeding component including a feeding section with a feeding trough, the feeding component being movably disposed and the feeding section extending into the hopper, wherein by means of the movement of the feeding component, the feeding trough switches between a position engaging with the screen slide or a position away from the screen slide, and during the switching process, the feeding trough carries the thin parts in the hopper to move. A pusher includes a pusher end extending into the hopper, the pusher being movably disposed such that, by means of movement of the pusher, the pusher end moves relative to the feed trough to push thin parts in the feed trough to the screen chute.

2. The feeding mechanism for a thin part according to claim 1, characterized in that: The feeding component is reciprocatingly arranged. Along the direction of movement of the feeding component, the feeding trough is divided into a feeding section and a screening section. The end of the feeding section away from the screening section has an opening so that the thin part can enter the feeding trough by means of the movement of the feeding component. The screening section is used to connect the screening slide and accommodate the pushing end of the pushing component to slide therein, so as to push the thin part in the screening section toward the direction of the screening slide.

3. The feeding mechanism for a thin part according to claim 2, characterized in that: The feeding section has an inclined surface so that the width of the feeding section gradually decreases, and the width of the feeding section is the largest at the opening.

4. The feeding mechanism for a thin part according to claim 2, characterized in that: The depth of the screening section corresponds to the thickness of the thin part, so that the screening section can only accommodate one thin part in the depth direction of the feeding trough.

5. The feeding mechanism for a thin part according to claim 2, characterized in that: The feeding component moves in a linear reciprocating motion. The extension direction of the screening chute is perpendicular to the moving direction of the feeding component. In the width direction of the screening chute, the size of the screening chute is smaller than that of the screening section. A screening ramp is provided on one side of the screening chute. The screening ramp extends in a direction away from the bottom surface of the feeding trough, so that the thin parts located in the screening section and unable to enter the screening chute fall off.

6. The feeding mechanism for a thin part according to claim 5, characterized in that: The direction of movement of the feeding component is at an angle to the horizontal direction, so that the thin part that exceeds the feeding trough falls back into the hopper by means of gravity.

7. The feeding mechanism for a thin part according to claim 5, characterized in that: The pusher moves in a linear motion, and its direction of motion is the same as the extension direction of the screen slide.

8. The feeding mechanism for a thin part according to claim 1, characterized in that: A discharge seat is provided on one side of the screening slide seat, and the discharge seat is provided with a discharge component. The end of the discharge component extends to the bottom surface of the screening slide to push out the thin part of the screening slide, thereby realizing material feeding.

9. The feeding mechanism for a thin part according to claim 1, characterized in that: The hopper is installed on the screening slide seat, and the inner wall of the hopper and the screening slide seat together form a material placement cavity for accommodating the thin part; the screening slide seat is provided with a feeding slide, and the feeding part of the feeding component is slidably disposed on the feeding slide, thereby realizing the switching of the feeding trough between the position of engaging with the screening slide and the position of moving away from the screening slide; the screening slide seat is provided with a pushing slide, and the pushing component is slidably disposed on the pushing slide, and the feeding trough of the feeding component is provided with The material is placed between the screening slide and the pushing slide, so that the thin part in the feeding trough is pushed to the screening slide by the reciprocating movement of the pushing component in the pushing slide; the feeding component is connected to and driven by the feeding cylinder, the pushing component is connected to and driven by the pushing cylinder, and the pushing cylinder is installed on the screening slide seat; the thin part is a part with a thickness of less than 10mm and a length and width that are more than 3 times the thickness.

10. A feeding device, characterized in that: It includes at least two sets of feeding mechanisms as described in any one of claims 1-9; wherein the screening slide seat and the hopper are shared by the two sets of feeding mechanisms, the screening slides of the two sets of feeding mechanisms are arranged on both sides of the same screening slide seat, and each feeding mechanism is provided with a feeding component and a pushing component.

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