Bottle cap feeding device

Abstract

The utility model relates to the technical field of bottle cap production, in particular to a bottle cap feeding device which comprises a vibration material arranging mechanism, a first material conveying mechanism, a rotary material arranging mechanism and a second material conveying mechanism which are sequentially arranged according to the material conveying sequence. The bottle caps enter the rotary material arranging mechanism in the posture that the openings of the bottle caps face upwards or downwards, and the rotary material arranging mechanism continues to arrange the bottle caps to enable the postures of the bottle caps to be consistent; the rotating material arranging mechanism comprises a rotating motor, a rotating hopper, a rotating disc, an overturning plate and a first air blowing pipe, a material arranging groove is formed in the rotating disc in the circumferential direction, the side wall of the material arranging groove is in shaft connection with the overturning plate, and when the rotating motor drives the rotating disc to rotate, and bottle caps on the overturning plate pass through the first air blowing pipe, the bottle caps are arranged in the first air blowing pipe. The air in the first air blowing pipe can enable the bottle cap with the downward opening to turn over to be in an upward opening state due to the fact that one side of the top of the bottle cap is subjected to wind, and the bottle cap with the upward opening cannot turn over due to the fact that the gravity center is below the turning plate and the wind receiving area is small.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap production, in particular to a bottle cap feeding device. Background Art

[0002] Bottle caps, as the name suggests, are used to seal bottles. They are generally round or ring-shaped, with a disposable breakable anti-theft ring (also called an anti-theft ring or a safety and hygiene ring) at the open end to indicate whether the bottle cap has been opened to ensure the safety and hygiene of the contents of the bottle. After the bottle caps are produced, gaskets need to be installed. During the operation of the gasket machine, the bottle caps need to be opened upwards and supplied continuously. Therefore, a feeding device that can make the bottle caps have a consistent posture is needed.

[0003] Chinese patent publication number CN216188833U discloses a device for arranging and conveying bottle caps, comprising a cylindrical vibrating plate, a vibrating device being connected to the bottom of the cylindrical vibrating plate, a bottle cap placement area being provided in the middle of the cylindrical vibrating plate, a spiral ascending channel being provided along the inner side of the bottle cap placement area, the spiral ascending channel being inclined along the inner side wall of the bottle cap placement area, the spiral ascending channel being connected to an integrated bottle cap arranging section, a plurality of steel bars flush with the bottle cap arranging section being provided on one side of the bottle cap arranging section, the steel bars being arranged at equal intervals, the distance between adjacent steel bars being less than the diameter of the bottle cap, the steel bars being inclined, and the steel bars being spaced so that bottle caps with their mouths facing downwards cannot pass through, thereby arranging the bottle caps, but when the bottle caps pass through the arranging section, bottle caps with their mouths facing upwards often fall off by mistake, affecting the subsequent supply of bottle caps and reducing production efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a bottle cap feeding device, which can continuously feed the bottle caps and can adjust the posture of the bottle caps.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A bottle cap feeding device comprises a vibrating material sorting mechanism, a first material feeding mechanism, a rotating material sorting mechanism and a second material feeding mechanism which are sequentially arranged in a feeding order, the vibrating material sorting mechanism is used to sort the bottle caps so that they enter the rotating material sorting mechanism with their openings facing upward or downward, and the rotating material sorting mechanism continues to sort the bottle caps so that their postures are consistent; the rotating material sorting mechanism comprises a rotating motor, a rotating hopper, a rotating disk, a flip plate and a first blowing pipe, the output end of the rotating motor passes through the rotating hopper and is connected to the rotating disk, the rotating disk is located inside the rotating hopper, and a material sorting trough is provided on its circumference, the cross-section of the material sorting trough is "U"-shaped, and flip plates are provided on both side walls, the width of the flip plate is consistent with the thickness of the bottle cap anti-theft ring, and its center is axially connected to the side wall of the material sorting trough, the first blowing pipe is located between the feed inlet and the discharge port of the rotating material sorting mechanism, and its air outlet is vertically downward and blows toward the open end of the material sorting trough.

[0007] The above-mentioned bottle cap feeding device, the rotating material sorting mechanism also includes a second air blowing pipe, which is located at the discharge port of the rotating material sorting mechanism, and the angle between the center line of the air outlet and the vertical direction is an acute angle, and blows toward the open end of the material sorting trough.

[0008] The above-mentioned bottle cap feeding device, the rotating material sorting mechanism also includes a third air blowing pipe, which is located between the first air blowing pipe and the second air blowing pipe, and its air outlet is horizontally arranged, and blows towards the rotating disk after passing through the side wall of the rotating hopper.

[0009] In the above-mentioned bottle cap feeding device, the discharge port of the first feeding mechanism is located directly above the place where the material sorting trough passes, and the discharge port of the first feeding mechanism is provided with elastic clips extending along the feeding direction, and the elastic clips are respectively fixed on both sides of the first feeding mechanism, and the distance between the bottom end and the rotating disk is smaller than the distance between the bottom end of the first feeding mechanism and the rotating disk, and the ends of the two elastic clips are close to each other for clamping and limiting the bottle caps.

[0010] The bottle cap feeding device has a plurality of wedge blocks on the rotating disk. The wedge blocks are located on the separating arms between adjacent material sorting troughs and have a triangular cross section. The wedge blocks cooperate with elastic clips.

[0011] The above-mentioned bottle cap feeding device, the vibration material sorting mechanism includes a vibration hopper, the bottom of the vibration hopper is connected to an electric vibration source, the middle part is provided with a bottle cap placement area, and material guide plates are provided along the four sides of the bottle cap placement area. The material guide plates spirally rise along the inner wall of the vibration hopper, and a material guide side plate is provided on the side away from the inner wall of the vibration hopper, and the discharge port of the material guide plate is connected to the material sorting channel.

[0012] The above-mentioned bottle cap feeding device, the material sorting channel includes a material sorting bottom plate and a material sorting side plate, one end of the material sorting bottom plate is connected to the material guide plate, and the other end is connected to the first feeding mechanism, and its width gradually decreases along the feeding direction, the lower end of the material sorting side plate is connected to the material sorting bottom plate, and the upper end is turned outward to the side away from the inner wall of the vibrating hopper, and a material drop port is provided on the side of the material sorting side plate close to the material guide side plate.

[0013] The above-mentioned bottle cap loading device, the first feeding mechanism includes a feeding bottom plate, feeding side plates are respectively provided on both sides of the feeding bottom plate, and a feeding pressure plate is provided on the top, the distance between the two feeding side plates matches the diameter of the bottle cap, the distance between the feeding pressure plate and the feeding bottom plate matches the height of the bottle cap, and the feeding pressure plate is fixed to the feeding side plates by multiple fixing clips.

[0014] The above-mentioned bottle cap feeding device, the fixed clamp includes a fixed support leg and a movable rod, the longitudinal section of the fixed support leg is "U"-shaped, and the two side walls are fixedly connected to the outer side walls of the feed side plate respectively, one end of the movable rod passes through the fixed support leg and is connected to the feed pressure plate, and the other end is provided with a handle, and the movable rod is threadedly connected to the fixed support leg.

[0015] The above-mentioned bottle cap loading device, the discharge port of the rotating hopper is provided with a discharge trough, the discharge trough is connected to the second feeding mechanism, and its width is consistent with the width of the material sorting trough, the end of the second feeding mechanism connected to the discharge trough is the high end, and then it tilts downward along the feeding direction, and the structure of the second feeding mechanism is the same as that of the first feeding mechanism.

[0016] The beneficial effects of adopting the above technical solution are:

[0017] The utility model arranges the bottle caps by a vibrating material sorting mechanism, so that the bottle caps enter the first feeding mechanism in an orderly manner with the openings facing upward or downward. The feeding pressure plate of the first feeding mechanism can be adjusted in height by a fixed clamp to ensure that the bottle caps move in sequence in the first feeding mechanism. The bottle caps of the first feeding port are limited by an elastic clip. At the same time, a wedge block is provided on the rotating disk, and the elastic clip is opened by the wedge block to make the bottle caps fall. In addition, a material sorting trough is provided on the circumference of the rotating disk, and flip plates are provided on both side walls of the material sorting trough for receiving the bottle caps. When the rotating disk drives the bottle cap to pass through the first blowing pipe, the gas in the first blowing pipe can cause the bottle cap with the opening facing downward to flip over to a position with the opening facing upward due to the wind on the top side. If the bottle cap does not flip over, but turns its opening toward the center of the rotating disk, when the bottle cap passes through the third blowing pipe, the gas in the third blowing pipe will force the lower side of the bottle cap, causing it to rotate to a position with the opening facing upward. Under the action of the first and third blowing pipes, the bottle caps are both turned to a position with the opening facing upward, which is convenient for the subsequent installation of gaskets.

[0018] Compared with the prior art in which bottle caps with inconsistent postures are rejected, the utility model arranges the postures of the bottle caps, which not only ensures the consistency of the postures of the loaded bottle caps, but also ensures the continuous feeding of the back-end process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a schematic diagram of the structure of the utility model (not drawn to scale);

[0021] Figure 2 This is a schematic diagram of the structure of the vibrating material sorting mechanism of the present invention (not drawn to scale);

[0022] Figure 3 for Figure 2 A partial enlarged view of part A in the middle (not drawn to scale);

[0023] Figure 4 This is a schematic structural diagram of the first feeding mechanism of the present invention (not drawn to scale);

[0024] Figure 5 This is a schematic diagram of the structure of the rotating material sorting mechanism of the present invention (not drawn to scale);

[0025] Figure 6 This is a schematic diagram of the structure of the flip plate of the utility model (not drawn to scale);

[0026] Figure 7 This is a schematic structural diagram of the bottle caps conveyed by the present invention (not drawn to scale).

[0027] In the figure: 1. Vibrating material sorting mechanism; 11. Vibrating hopper; 12. Electric vibration source; 13. Bottle cap placement area; 14. Material guide plate; 15. Material guide side plate; 16. Material sorting bottom plate; 17. Material sorting side plate; 2. First feeding mechanism; 21. Elastic clip; 22. Feeding bottom plate; 23. Feeding side plate; 24. Feeding pressure plate; 25. Fixed clamp; 251. Fixed support foot; 252. Movable rod; 3. Rotating material sorting mechanism; 31. Rotating motor; 32. Rotating hopper; 321. Discharge chute; 33. Rotating disk; 331. Material sorting chute; 332. Wedge block; 333. Separation arm; 34. Turning plate; 35. First air blow pipe; 36. Second air blow pipe; 37. Third air blow pipe; 4. Second feeding mechanism; 5. Bottle cap; 51. Bottle cap body; 52. Anti-theft ring. DETAILED DESCRIPTION

[0028] like Figure 7 As shown, the bottle cap 5 conveyed by the present invention includes a bottle cap body 51 and an anti-theft ring 52 , wherein the diameter of the anti-theft ring 52 is larger than the diameter of the bottle cap body 51 .

[0029] like Figure 1-6 As shown, the utility model includes a vibrating material sorting mechanism 1, a first material feeding mechanism 2, a rotating material sorting mechanism 3 and a second material feeding mechanism 4 which are sequentially arranged in the feeding order. The vibrating material sorting mechanism 1 is used to sort the bottle caps so that they enter the rotating material sorting mechanism 3 with the opening facing upward or downward, and the rotating material sorting mechanism 3 continues to sort the bottle caps so that their postures are consistent; the rotating material sorting mechanism 3 includes a rotating motor 31, a rotating hopper 32, a rotating disk 33, a flip plate 34 and a first air blowing pipe 35, the output end of the rotating motor 31 passes through the rotating hopper 32 to connect the rotating disk 33, the rotating disk 33 is located inside the rotating hopper 32, and a material sorting trough 331 is provided in its circumference, the cross section of the material sorting trough 331 is "U"-shaped, and flip plates 34 are provided on both side walls, and the width of the flip plate 34 is the same as that of the bottle caps The thickness of the anti-theft ring 52 is consistent, and its center is axially connected to the side wall of the material sorting trough 331. The first blowing pipe 35 is located between the feed port and the discharge port of the rotating material sorting mechanism 3 and is fixed on the side wall of the rotating hopper 32. Its air outlet is vertically downward and blows toward the open end of the material sorting trough 331, so that the gas of the first blowing pipe 35 is blown toward the side of the bottle cap close to the edge of the rotating disk 33, and the bottle cap entering the rotating material sorting mechanism 3 through the discharge port of the first feeding mechanism 2 falls into the material sorting trough 331 with the opening facing up or down. The two sides of the anti-theft ring 52 are overlapped on the flip plate 34. When passing through the first blowing pipe 35, the bottle cap with the opening facing up will not flip over because its center of gravity is below the flip plate 34 and the wind-exposed area is small. The bottle cap with the opening facing down will flip over to the opening facing up due to the wind on the top side.

[0030] like Figure 5 As shown, the rotating material sorting mechanism 3 of the present invention also includes a second air blowing pipe 36, which is located at the discharge port of the rotating material sorting mechanism 3 and is also fixed on the side wall of the rotating hopper 32. The angle between the center line of the air outlet and the vertical direction is an acute angle, and blows from the center of the rotating disk 33 to the open end of the material sorting trough 331, so that the gas of the second air blowing pipe 36 blows toward the inner wall of the bottle cap. When the bottle cap is transported to the discharge port of the rotating material sorting mechanism 3, the gas of the second air blowing pipe 36 blows toward the inner side of the bottle cap, blowing the bottle cap out of the rotating material sorting mechanism 3.

[0031] In addition, the rotating material sorting mechanism 3 of the present invention further includes a third air blowing pipe 37, which is located between the first air blowing pipe 35 and the second air blowing pipe 36 and fixed on the side wall of the rotating hopper 32. The air outlet is arranged horizontally, and after passing through the side wall of the rotating hopper 32, it is blown toward the rotating disk 33, so that the gas from the third air blowing pipe 37 is blown toward the lower part of the bottle cap. When the bottle cap with the opening facing downward passes through the first air blowing pipe, if it does not turn over but becomes such that the opening faces the center of the rotating disk 33, the gas from the third air blowing pipe 37 will blow toward the lower part of the bottle cap, causing one side of the bottle cap to be subjected to force and then rotated to a posture with the opening facing upward. When the bottle cap with the opening facing upward passes through the third air blowing pipe 37, the gas is blown toward the side wall of the bottle cap or toward the gap between the bottom of the bottle cap and the rotating hopper 32, so the posture will not be changed.

[0032] like Figure 1 、 4 As shown, the discharge port of the first feeding mechanism 2 is located just above the place where the material sorting trough 331 passes, and the discharge port of the first feeding mechanism 2 is provided with an elastic clip 21 extending along the feeding direction, and the elastic clips 21 are respectively fixed on both sides of the first feeding mechanism 2, and the distance between the bottom end thereof and the rotating disk 33 is smaller than the distance between the bottom end of the first feeding mechanism 2 and the rotating disk 33, and the ends of the two elastic clips 21 are close to each other, which are used to clamp and limit the bottle caps to prevent the bottle caps from falling directly from the discharge port of the first feeding mechanism 2, and after clamping, a part of the bottle caps is located outside the first feeding mechanism 2, and the other part is supported by the first feeding mechanism 2.

[0033] like Figure 5 As shown, the rotating disk 33 is provided with a plurality of wedge blocks 332. The wedge blocks 332 are located on the dividing arms 333 in the middle of adjacent material sorting troughs. The cross section thereof is triangular. The direction of the tip of the wedge block is consistent with the rotation direction of the rotating disk 33. When the rotating disk 33 rotates, the tip of the wedge block 332 first reaches the gap between the two elastic clips 21, and gradually opens the two elastic clips 21 as the rotating disk 33 rotates. Then the bottle cap falls off, and the end of the wedge block 332 leaves the elastic clip 21. The elastic clip 21 is reset by its own elastic force to clamp and limit the next bottle cap.

[0034] like Figure 2 、 3As shown, the vibration material sorting mechanism 1 includes a vibration hopper 11, the bottom of the vibration hopper 11 is connected to an electric vibration source 12, the middle part is a bottle cap placement area 13, and a material guide plate 14 is provided around the bottle cap placement area 13. The material guide plate 14 spirally rises along the inner wall of the vibration hopper 11, and a material guide side plate 15 is provided on the side away from the inner wall of the vibration hopper 11. The discharge port of the material guide plate 14 is connected to the material sorting channel, and the material sorting channel includes a material sorting bottom plate 16 and a material sorting side plate 17. One end of the material sorting bottom plate 16 is connected to the material guide plate 14, and the other end is connected to the first feeding mechanism 2. The width of the material sorting bottom plate 16 is 1. The degree gradually decreases along the feeding direction, the lower end of the material sorting side plate 17 is connected to the material sorting bottom plate 16, and the upper end is turned outward to the side away from the inner wall of the vibrating hopper 11, and the material sorting side plate 17 is provided with a drop port on the side close to the material guide side plate 15. When the electric vibration source 12 vibrates, it drives the vibrating hopper 11 to vibrate, so that the bottle caps in the bottle cap placement area 13 move upward in a spiral along the material guide plate 14. When the bottle caps move to the material sorting channel, due to the gradually narrowing width of the material sorting bottom plate 16, a part of the bottle caps will fall from the drop port, and the bottle caps remaining on the material sorting bottom plate 16 will be arranged in order and enter the first feeding mechanism 2.

[0035] like Figure 4 As shown, the first feeding mechanism 2 includes a feeding bottom plate 22, and feeding side plates 23 are respectively provided on both sides of the feeding bottom plate 22, and a feeding pressure plate 24 is provided on the top. The distance between the two feeding side plates 23 matches the diameter of the bottle cap, and the distance between the feeding pressure plate 24 and the feeding bottom plate 22 matches the height of the bottle cap, ensuring that the bottle cap always moves in sequence with the opening facing upward or downward in the first feeding mechanism 2. The feeding pressure plate 24 is fixed to the feeding side plate 23 by a plurality of fixing clips 25.

[0036] The fixed clamp 25 of the present invention includes a fixed support leg 251 and a movable rod 252. The longitudinal section of the fixed support leg 251 is "U"-shaped, and the two side walls are fixedly connected to the outer side walls of the feed side plate 23 respectively. One end of the movable rod 252 passes through the fixed support leg 251 and is connected to the feed pressure plate 24. The other end is provided with a handle, which can be used to adjust the height of the feed pressure plate 24. The movable rod 252 is threadedly connected to the fixed support leg 251.

[0037] like Figure 1 、 5 As shown, the discharge port of the rotating hopper 32 is provided with a discharge trough 321, and the discharge trough 321 is connected to the second feeding mechanism 4, and its width is consistent with the width of the material sorting trough 331. The end of the second feeding mechanism 4 connected to the discharge trough 321 is the high end, and then it is tilted downward along the feeding direction to facilitate the bottle caps to enter the second feeding mechanism 4 under the action of the second blowing pipe 36. The second feeding mechanism 4 has the same structure as the first feeding mechanism 2.

[0038] Working process:

[0039] 1. Driven by the electric vibration source 12, the bottle caps 5 in the bottle cap placement area 13 spiral upward along the guide plate and pass through the material sorting base 16. Some of the bottle caps 5 will fall from the drop-out port, while the bottle caps remaining on the material sorting base 16 will enter the first feeding mechanism 2 in sequence;

[0040] 2. The bottle cap 5 moves to the discharge port in the first feeding mechanism with its opening facing upward or downward. The elastic clip 21 restrains it in place. The rotating disk 33 drives the wedge block 332 to rotate, which gradually pushes the two elastic clips 21 apart. The bottle cap 5 falls into the sorting chute 331. The anti-theft ring 52 of the bottle cap overlaps the flip plate 34, and the elastic clip 21 returns to its original position due to its own elastic force.

[0041] 3. When the bottle cap 5 moves with the rotating disk 33 to the first air blowing pipe 35, the bottle cap with the opening facing downward will be flipped to the position with the opening facing upward due to the wind on the top side, while the bottle cap with the opening facing upward will remain in the same position. If the bottle cap does not flip over and the opening faces the center of the rotating disk 33, when the bottle cap passes through the third air blowing pipe 37, the gas from the third air blowing pipe 37 will apply force to one side of the bottle cap, causing it to flip to the position with the opening facing upward.

[0042] 4. When the bottle caps 5 move to the second blowing pipe 36 along with the rotating disk 33, all the bottle caps are now in an upward opening position. The gas from the second blowing pipe 36 blows toward the inner wall of the bottle cap 5, blowing the bottle cap into the second feeding system and moving it along the second feeding system to the gasket installation process.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the protection scope of the various technical solutions implemented in the present invention.

Claims

1. A bottle cap feeding device, characterized in that: The invention comprises a vibrating material sorting mechanism (1), a first material feeding mechanism (2), a rotating material sorting mechanism (3) and a second material feeding mechanism (4) which are sequentially arranged in a material feeding sequence. The vibrating material sorting mechanism (1) is used to sort the bottle caps (5) so that they enter the rotating material sorting mechanism (3) with their openings facing upward or downward. The rotating material sorting mechanism (3) continues to sort the bottle caps (5) so that their postures are consistent. The rotating material sorting mechanism (3) comprises a rotating motor (31), a rotating hopper (32), a rotating disk (33), a flip plate (34) and a first blowing pipe (35). The rotating motor (31) ) is connected to a rotating disk (33) through a rotating hopper (32). The rotating disk (33) is located inside the rotating hopper (32) and is provided with a material sorting trough (331) in its circumference. The cross section of the material sorting trough (331) is U-shaped. Both side walls are provided with a flip plate (34). The width of the flip plate (34) is consistent with the thickness of the bottle cap anti-theft ring (52). The center of the flip plate is axially connected to the side wall of the material sorting trough (331). The first air blowing pipe (35) is located between the feed port and the discharge port of the rotating material sorting mechanism (3). The air outlet is vertically downward and blows toward the open end of the material sorting trough (331).

2. The bottle cap feeding device according to claim 1, characterized in that: The rotating material sorting mechanism (3) further comprises a second air blowing pipe (36), which is located at the material outlet of the rotating material sorting mechanism (3), wherein the angle between the center line of the air outlet and the vertical direction is an acute angle, and the air blows toward the open end of the material sorting trough (331).

3. The bottle cap feeding device according to claim 1 or 2, characterized in that: The rotating material sorting mechanism (3) further comprises a third air blowing pipe (37), which is located between the first air blowing pipe (35) and the second air blowing pipe (36), and has an air outlet arranged horizontally. After passing through the side wall of the rotating hopper (32), the air is blown toward the rotating disk (33).

4. The bottle cap feeding device according to claim 3, characterized in that: The discharge port of the first feeding mechanism (2) is located just above the place where the material sorting trough (331) passes. The discharge port of the first feeding mechanism (2) is provided with an elastic clip (21) extending along the feeding direction. The elastic clips (21) are respectively fixed on both sides of the first feeding mechanism (2). The distance between the bottom end thereof and the rotating disk (33) is smaller than the distance between the bottom end of the first feeding mechanism (2) and the rotating disk (33). The ends of the two elastic clips (21) are close to each other and are used to clamp and limit the bottle cap (5).

5. The bottle cap feeding device according to claim 4, characterized in that: The rotating disk (33) is provided with a plurality of wedge blocks (332). The wedge blocks (332) are located on the separation arms (333) between adjacent material sorting troughs (331). The cross section thereof is triangular. The wedge blocks (332) cooperate with the elastic clips (21).

6. The bottle cap feeding device according to claim 5, characterized in that: The vibrating material sorting mechanism (1) comprises a vibrating hopper (11), the bottom of the vibrating hopper (11) is connected to an electric vibration source (12), the middle of the vibrating hopper (11) is provided with a bottle cap placement area (13), and material guide plates (14) are provided along the four sides of the bottle cap placement area (13). The material guide plates (14) rise in a spiral along the inner wall of the vibrating hopper (11), and a material guide side plate (15) is provided on the side away from the inner wall of the vibrating hopper (11). The discharge port of the material guide plate (14) is connected to the material sorting channel.

7. The bottle cap feeding device according to claim 6, characterized in that: The material sorting channel comprises a material sorting bottom plate (16) and a material sorting side plate (17); one end of the material sorting bottom plate (16) is connected to the material guide plate (14), and the other end is connected to the first feeding mechanism (2); the width thereof gradually decreases along the feeding direction; the lower end of the material sorting side plate (17) is connected to the material sorting bottom plate (16), and the upper end is turned outward toward the side away from the inner wall of the vibrating hopper (11); and a material drop opening is provided on the side of the material sorting side plate (17) close to the material guide side plate (15).

8. The bottle cap feeding device according to claim 5, characterized in that: The first feeding mechanism (2) comprises a feeding bottom plate (22), feeding side plates (23) are respectively provided on both sides of the feeding bottom plate (22), and a feeding pressure plate (24) is provided on the top, the distance between the two feeding side plates (23) matches the diameter of the bottle cap (5), the distance between the feeding pressure plate (24) and the feeding bottom plate (22) matches the height of the bottle cap (5), and the feeding pressure plate (24) is fixed to the feeding side plates (23) by a plurality of fixing clips (25).

9. The bottle cap feeding device according to claim 8, characterized in that: The fixing clamp (25) includes a fixed support leg (251) and a movable rod (252). The longitudinal section of the fixed support leg (251) is "U"-shaped, and the two side walls are respectively fixedly connected to the outer side walls of the feeding side plate (23). One end of the movable rod (252) passes through the fixed support leg (251) and is connected to the feeding pressure plate (24). The other end is provided with a handle. The movable rod (252) is threadedly connected to the fixed support leg (251).

10. The bottle cap feeding device according to claim 5, characterized in that: The discharging port of the rotating hopper (32) is provided with a discharging trough (321), which is connected to the second feeding mechanism (4). The width of the discharging trough (321) is consistent with the width of the material sorting trough (331). The end of the second feeding mechanism (4) connected to the discharging trough (321) is the high end, and then it tilts downward along the feeding direction. The second feeding mechanism (4) has the same structure as the first feeding mechanism (2).

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