Bottle cap surface pre-cleaning device and rapid water filtering component

Abstract

The invention discloses a bottle cap surface pre-cleaning device and a rapid water filtering component, and relates to the technical field of bottle cap machining, the bottle cap surface pre-cleaning device comprises a rack, a space between two adjacent supporting plates is an independent cleaning space with three faces closed synchronously and one face provided with spraying meshes, and a flushing head transversely penetrating through a conveying belt is arranged between two extending plates; the spraying meshes are a flushing fluid inlet channel and a flushing fluid discharge channel; the independent cleaning space is used for temporarily storing bottle caps to be cleaned in batches, air enters the two opposite air inlets in the same horizontal height alternately, and the multiple bottle caps in the independent cleaning space are alternately subjected to high-pressure blowing force from the two directions in the horizontal direction. A plurality of independent cleaning spaces are provided for bottle cap cleaning, the bottle cap can make contact with flushing fluid in a dynamic mode in the cleaning process, the moving bottle cap can change the water flow direction and the contact area, and water flow can cover all parts of the bottle cap more comprehensively; and water filtering and drying functions are achieved, and the efficiency of follow-up treatment work after cleaning is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bottle cap processing, and particularly to a pre-cleaning device for the surface of a bottle cap and a rapid water filtering component. Background Technique

[0002] A bottle cap is used to seal a bottle. According to different functions, there are bottle caps with different shapes and different operation methods. During the production and processing of bottle caps, a large amount of dust and various micro-particles will be adsorbed on its surface due to electrostatic action, and it is necessary to carry out cleaning work on it. Therefore, the pre-cleaning of the bottle cap surface is an important step to ensure subsequent processing, packaging or use safety.

[0003] In the prior art, the diameter of the bottle cap matching a small bottle mouth is relatively small, the inner wall of its threaded connection with the small bottle mouth has a depth of at least 5 mm, and the outer shape of the bottle cap is mostly a cylindrical structure. Then, during the physical cleaning process, it is difficult to ensure that the cleaning component is directly opposite the inner wall of the bottle cap for cleaning operations, and then the cleaning component cannot even contact the inner wall of the bottle cap, making some foreign matters (caked ash stains or oil stains) in the bottle cap easily adhere to the inner wall of the bottle cap. Eventually, it seriously affects the subsequent sealing with the bottle mouth, resulting in the growth of bacteria due to foreign matters, and directly affecting the shelf life of the products filled in the bottle. Summary of the Invention

[0004] The purpose of the present invention is to provide a pre-cleaning device for the surface of a bottle cap and a rapid water filtering component to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A pre-cleaning device for the surface of a bottle cap, including a frame. On opposite sides of the frame, there are extension plates extending upward. Between the two extension plates, there is a conveyor belt. The conveyor belt has a waist-shaped closed structure, and a plurality of support plates are transversely arranged on its outer wall. Between the two extension plates on the same side, there is a side baffle. The side baffle is slidably attached to the long side side wall of the support plate. On the conveyor belt, there are spray mesh holes located between adjacent support plates. Thus, the space between adjacent support plates is an independent cleaning space that is temporarily closed on three sides and has a spray mesh hole on one side. Between the two extension plates, there is a flushing head that transversely penetrates into the conveyor belt. The spray mesh holes are channels for the flushing liquid to enter and drain. The independent cleaning space is used for batch temporarily storing the bottle caps to be cleaned, and a plurality of bottle caps in the same independent cleaning space are horizontally distributed in a linear structure. On the same side of the two extension plates, there are a plurality of air inlets distributed from top to bottom. The two air inlets opposite at the same horizontal height alternate in air intake. A plurality of bottle caps in the independent cleaning space are alternately subjected to high-pressure blowing forces from two directions in the horizontal direction, and the bottle caps come into contact with the sprayed flushing liquid under dynamic conditions.

[0006] In a further embodiment, a high-pressure pump is installed at the bottom end of one of the extension plates. The air outlet of the high-pressure pump is connected to a reversing box. Oppositely arranged on the outer wall of the reversing box are an air guide pipe one and an air guide pipe two. The air guide pipe one communicates with a plurality of air inlets on one of the extension plates, and the air guide pipe two communicates with a plurality of air inlets on the other extension plate. The air guide pipe one and the air guide pipe two intake air alternately. Schematic diagram of the splitting structure of the frame and the filter screen; In a further embodiment, a transmission rod that can rotate within the reversing box is inserted into the reversing box. A connecting rod is radially fixed at the end of the transmission rod, and a sealing gasket is fixed at the end of the connecting rod. The sealing gasket is a half-circular structure, and its width is equal to the inner diameter of the air guide pipe one or the air guide pipe two.

[0007] In a further embodiment, a hot air inlet is provided on the side wall of one of the extension plates, which provides a hot air inlet channel for the passing bottle caps. A discharge port is provided on the side wall of the other extension plate, which provides a discharge channel for the dried bottle caps.

[0008] In a further embodiment, a recovery tank is provided on the frame below the space between the two extension plates. A filter screen is arranged in the recovery tank, and the filter screen divides the recovery tank into two parts. The space above the filter screen in the recovery tank is a solid recovery tank, and the space below the filter screen in the recovery tank is a liquid recovery tank.

[0009] In a further embodiment, it further includes an inclined feed chute. The bottom end of the side baffle is provided with a feed inlet. The lower end of the feed chute with a lower height is butted against the feed inlet. Anti-falling extension parts extend upward from both side walls of the feed chute. Guide plates are provided on the opposite side walls of the two anti-falling extension parts. The ends of the two guide plates close to the feed inlet are arranged close to each other, forming a narrowing opening with an opening smaller than the feed inlet.

[0010] In a further embodiment, the lower end of the feed chute with a lower height bends downward and extends to form a bent guiding end, and the bent guiding end passes through the feed inlet and slidably fits with the side wall of the long side end of the pallet.

[0011] In a further embodiment, a hollow cavity is provided on the feed chute. Transmission rollers are rotatably installed at both ends within the hollow cavity. A conveyor belt is wound between the two transmission rollers. The end of one of the transmission rollers rotatably extends to the side wall of the feed chute and is connected to a small gear disc. A motor is fixed to the bottom wall of the feed chute, and the output end of the motor is connected to a large gear disc that meshes with the small gear disc. The motor provides forward and reverse driving power for the large gear disc.

[0012] A quick water filtering component for bottle caps, which is used for the surface pre-cleaning device of the bottle caps, includes a plurality of narrow notches opened on the pallet.

[0013] In a further embodiment, a plurality of rubber bumps which are arranged in a line and have a width greater than the narrow notch are provided on the side wall of the side baffle facing the pallet. The pallet follows the conveyor belt to circulate and drive. The narrow notches of the pallet pass through the rubber bumps in sequence. The rubber bumps are squeezed by the narrow notches, increasing the friction force with the inner wall of the narrow notch, and generating a local shaking force on the conveyor belt.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides multiple independent cleaning spaces for bottle cap cleaning, and can contact with the rinsing liquid in a dynamic manner during the cleaning process. The moving bottle caps will change the water flow direction and contact area, enabling the water flow to more comprehensively cover all parts of the bottle cap and enhancing the cleaning effect; and at the same time, it has the functions of water filtering and drying, improving the efficiency of the subsequent treatment work after cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the frame and the filter screen of the present invention; Figure 3 It is a schematic diagram of the assembled structure of the frame and the conveyor belt of the present invention; Figure 4 It is a schematic diagram of the assembled structure of the conveyor belt and the rinsing head of the present invention; Figure 5 It is a schematic diagram of the structure of the rinsing head of the present invention; Figure 6 It is a cross-sectional view of the internal structure of the reversing box of the present invention; Figure 7 It is a schematic diagram of the distribution of the sealing gasket at different positions in the reversing box of the present invention; Figure 8 It is a schematic diagram of the further improved structure of the conveyor belt of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of the structure at A; Figure 10 It is a schematic diagram of the assembled structure of the conveyor belt and the conveyor belt support with a semi-sectional structure of the present invention; Figure 11 It is a schematic diagram of the assembled structure of the transmission rod, the large gear disc and the small gear disc of the present invention.

[0016] In the figure: 1. extension plate; 11. inclined guide frame; 12. side baffle; 13. recovery trough; 14. filter screen; 15. limiting edge strip; 16. hot air outlet; 17. discharge port; 2. conveyor belt; 21. support plate; 22. narrow gap; 3. cold air duct; 31. reversing box; 32. air guide duct one; 33. air guide duct two; 34. connecting rod; 35. sealing gasket; 4. feed inclined plate; 41. conveyor belt; 42. guide plate; 43. small toothed disc; 44. large toothed disc; 45. transmission roller; 5. hot air blower; 6. flushing head. DETAILED DESCRIPTION

[0017] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment, this embodiment discloses a bottle cap surface pre-cleaning device, including a frame, such as Figure 1 and Figure 2 As shown, extension plates 1 extend upward on opposite sides of the frame, a conveyor belt 2 is arranged between the two extension plates 1, the conveyor belt 2 is a waist-shaped closed structure, the conveyor belt 2 is in a vertical distribution state, and an I-shaped transmission shaft is rotatably arranged on the inner sides of both ends, the I-shaped transmission shaft is rotatably arranged between the two extension plates 1, a motor is installed on the outer wall of one of the extension plates 1, and the output end of the motor is connected to the end of one of the I-shaped transmission shafts to provide rotational power for the I-shaped transmission shaft.

[0019] like Figure 4 and Figure 5 As shown, a plurality of support plates 21 are transversely arranged on the outer wall of the conveyor belt 2, a side baffle plate 12 is arranged between the same side of the two extension plates 1, the side baffle plate 12 is slidably fitted with the long side wall of the support plate 21, a spray mesh hole is arranged on the conveyor belt 2 between the two adjacent support plates 21, and thus the space between the two adjacent support plates 21 is an independent cleaning space which is temporarily closed on three sides and provided with a spray mesh hole on one side, a flushing head 6 is arranged between the two extension plates 1, which penetrates transversely from the conveyor belt 2, the spray mesh hole is an inlet channel and a discharge channel for the flushing liquid, the flushing head 6 is a hollow structure, one end of which is connected to the external pipeline through the extension plate 1, and a plurality of rows of flushing nozzles are arranged on the side wall of the flushing head 6 facing the side baffle plate 12, and the power is provided by a high-pressure water pump, so that the flushing liquid ejected from the flushing nozzle has an impact force, so that the flushing liquid is ejected from the flushing nozzle into the independent cleaning space from the spray mesh hole to clean the bottle cap.

[0020] In order to continuously supply the caps to be cleaned to each independent cleaning space and improve the cleaning efficiency, an inclined feeding chute 4 is further included in this embodiment. The bottom end of the side baffle 12 is provided with a feeding port. The lower end of the feeding chute 4 with a lower height is docked with the feeding port. Anti-falling extension parts extend upward from the two side walls of the feeding chute 4. As Figure 1 and Figure 10 shown, the feeding chute 4 is inclined, and its upper end surface serves as an inclined supporting surface. The caps to be cleaned are placed flat without overlapping and placed on the inclined supporting surface, and slide from a high place to a low place along the inclined supporting surface. The anti-falling extension cloths on both sides can prevent the caps from falling from the sides.

[0021] In order to ensure that the caps can accurately enter the independent cleaning space, a bent guiding end extends downward and bends at the lower end of the feeding chute 4 with a lower height. The bent guiding end passes through the feeding port and slidably fits with the side wall of the long side end of the tray 21. As Figure 10 shown, the caps slide from the upper end surface of the feeding chute 4 and enter the independent inclined space through the bent guiding end. At this time, the caps change from a flat state to an upright state after passing through the bent guiding end. It is required here that the front-to-back width in the independent cleaning space, that is, the short side width of the tray 21, should not be greater than twice the thickness of the cap. The purpose of this design is that after entering the independent cleaning space in an upright state, they are arranged in a single-row structure without overlapping. In this way, all caps can receive the spraying of the cleaning liquid sprayed from the spray holes of the spray net, avoiding the phenomenon of incomplete cleaning due to overlapping.

[0022] Of course, in order to ensure the feeding effectiveness, as Figure 1 and Figure 11 shown, a hollow cavity is provided in the feeding chute 4. Transmission rollers 45 are rotatably installed at both ends in the hollow cavity. A conveyor belt 41 is wound around between the two transmission rollers 45. One end of one of the transmission rollers 45 rotatably extends to the side wall of the feeding chute 4 and is connected with a small gear disk 43. A motor is fixed to the bottom wall of the feeding chute 4. The output end of the motor is connected with a large gear disk 44 that meshes with the small gear disk 43. The motor provides forward and reverse rotation power for the large gear disk 44, and the small gear disk 43 rotates synchronously. The transmission roller 45 serves as the power source for driving the conveyor belt 41 to transmit. The design here is that the motor uses a servo motor and alternately rotates forward and backward within the range of 0 - 45°, so that the conveyor belt 41 transmits forward and backward, generating a jerky force, which can further prompt the caps located on the upper end surface of the conveyor belt 41 to quickly and orderly slide down from a high place and tilt, providing a continuous supply of caps to be cleaned for the independent cleaning space.

[0023] Moreover, as Figure 1 and Figure 10As shown in the figure, flow guiding plates 42 are provided on the opposite side walls of the two anti-falling extension parts. One ends of the two flow guiding plates 42 close to the feed inlet are arranged close to each other, forming a reduced opening with an opening smaller than the feed inlet. In this way, the sum of the diameters of all the bottle caps entering the independent cleaning space is smaller than the long side width of the tray 21. In this way, it is possible for the bottle caps to move left and right in the independent cleaning space to adjust their cleaning positions.

[0024] A plurality of air inlets distributed from top to bottom are provided on the same side of the two extension plates 1. The two opposite air inlets at the same horizontal height intake air alternately. The plurality of bottle caps in the independent cleaning space are alternately subjected to high-pressure blowing forces from two directions in the horizontal direction, and the bottle caps contact the injected rinsing liquid in a dynamic state.

[0025] The plurality of bottle caps in the same independent cleaning space are horizontally distributed in a linear structure.

[0026] Specifically, a high-pressure pump is installed at the bottom end of one of the extension plates 1. The air outlet of the high-pressure pump is connected to a reversing box 31. Guide pipes 32 and 33 are oppositely provided on the outer wall of the reversing box 31. The guide pipe 32 is communicated with a plurality of air inlets on one of the extension plates 1, and the guide pipe 33 is communicated with a plurality of air inlets on the other extension plate 1. The guide pipes 32 and 33 intake air alternately. A transmission rod that can rotate in the reversing box 31 is inserted into the reversing box 31. A connecting rod 34 is radially fixed at the end of the transmission rod. A sealing gasket 35 is fixed at the end of the connecting rod 34. The sealing gasket 35 is a semi-circular structure with a width equal to the inner diameter of the guide pipe 32 or 33. As Figure 6 and Figure 7 shown, a motor is installed on the outer wall of the reversing box 31. The motor provides power for the rotation of the transmission rod. The sealing gasket 35 is driven by the connecting rod 34 to move in a circular motion along the inner wall of the reversing box 31. The sealing gasket 35 sequentially passes through the positions opposite to the guide pipes 32 and 33, so that high-pressure gas enters the guide pipes 32 and 33 alternately, and then high-pressure gas enters the two sides of the independent cleaning space alternately. Since the plurality of bottle caps in the same independent cleaning space are horizontally distributed in a linear structure, the plurality of bottle caps horizontally distributed in rows slide left and right reciprocally to change positions. Coupled with the injection of high-pressure rinsing liquid into the independent inclined space, the bottle caps contact the rinsing liquid in a dynamic process, and the water flow continuously flows, which can continuously remove the dirt and impurities on the surface of the bottle caps, forming a continuous cleaning force. At the same time, the moving bottle caps will change the water flow direction and contact area, enabling the water flow to more comprehensively cover all parts of the bottle caps and enhancing the cleaning effect.

[0027] Since the independent inclined space is temporarily enclosed on three sides and has a spray mesh hole on one side, when the independent cleaning space moves past the rinsing head 6, the high-pressure rinsing liquid spurts in from the spray mesh hole, and the amount of the rinsing liquid entering from the spray mesh hole is much larger than the amount overflowing from the spray mesh hole. Therefore, the independent cleaning space will be filled with the rinsing liquid in a short time, and both the inner and outer side walls of the bottle cap will be completely immersed in the high-pressure rinsing liquid in the rinsing environment, capable of washing away the debris and surface dirt inside and outside the inner cap. The advantage of such a design is that regardless of whether the inner and outer walls of the bottle cap are facing the spray mesh hole, that is, when the bottle cap is sent into the independent cleaning space, it may be the outer wall of the bottle cap facing the spray mesh hole, or it may be the inner wall of the bottle cap facing the spray mesh hole. As long as the bottle cap is immersed in the environment filled with high-pressure rinsing liquid, the debris and surface dirt can be washed away by the high-pressure rinsing liquid. There is no need to adjust the orientation of the inner and outer walls of the bottle cap. The moving bottle cap will break the surface tension of the water flow, making it easier for the water to penetrate into the tiny gaps of the bottle cap and carry out the dirt.

[0028] With the continuous conveying operation of the conveyor belt 2, after the independent cleaning space is rinsed by the rinsing head 6, it continues to rise in height and misses the rinsing head 6. Then, the rinsing liquid in the independent cleaning space will overflow from the spray mesh hole and carry away the debris and dirt. Next, it is necessary to dry the bottle cap. As Figure 3 shown, there is a hot air outlet 16 on the side wall of one of the extension plates 1. The hot air outlet 16 provides a hot air inlet channel for the passing bottle caps. And there is a hot air blower 5 capable of providing high-temperature hot air outside the hot air outlet 16. The hot air enters each passing independent cleaning space in a horizontal blowing manner from the hot air outlet 16. This speeds up the separation of the rinsing liquid from the surface of the bottle cap.

[0029] At the same time, there is a discharge port 17 on the side wall of the other extension plate 1. The discharge port 17 provides a discharge channel for the dried bottle caps. And there is an inclined guide frame 11 with a hollow structure at the opening of the discharge port 17. The hot air can not only dry the bottle cap but also provide a horizontal blowing force to blow the bottle cap out from the discharge port 17, and the bottle cap can be discharged along the end opening of the inclined guide frame 11. In addition, an air inlet mesh hole is opened directly below the inclined guide frame 11, and the air outlet of the high-pressure pump is also connected to a cold air pipe 3. The air outlet of the cold air pipe 3 is facing the air inlet mesh hole of the inclined guide frame 11, so that the dried bottle cap can be cooled by cold air.

[0030] Moreover, a recovery tank 13 is provided on the rack below the two extension plates 1. A filter screen 14 is arranged in the recovery tank 13. A limiting edge strip 15 is provided on the inner wall of the recovery tank 13. After the filter screen 14 is placed in the recovery tank 13, it will be seated on the limiting edge strip 15, thereby dividing the recovery tank 13 into two parts. The space above the filter screen 14 in the recovery tank 13 is a solid recovery tank, and the space below the filter screen 14 in the recovery tank 13 is a liquid recovery tank. The flushing liquid overflowing from the spray holes will drip into the recovery tank 13, and the filter screen 14 is used to filter debris and dirt. The flushing liquid will enter the liquid recovery tank. Of course, the filtered flushing liquid can be pumped again to flush the caps on the bottom layer.

[0031] In this embodiment, a quick water filtering component for caps is also disclosed, which is used for the pre-cleaning device of the cap surface, such as Figure 8 and Figure 9 shown, including a plurality of narrow notches 22 opened on the support plate 21. At the same time, a plurality of rubber bumps arranged in a line and with a width greater than that of the narrow notches 22 are provided on the side wall of the side baffle 12 facing the support plate 21. The support plate 21 follows the transmission belt 2 to circulate and drive. The narrow notches 22 of the support plate 21 pass by the rubber bumps in sequence. The rubber bumps are squeezed by the narrow notches 22, increasing the friction force with the inner wall of the narrow notches 22, and the transmission belt 2 generates a local shaking force. In this way, the caps rinsed by the rinsing head 6 can shake off the cleaning liquid adhering to their outer walls during the shaking process and overflow from the spray holes and the narrow notches 22 to the independent rinsing space. A pre-treatment operation is carried out before the hot air drying treatment to improve the drying efficiency.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre - cleaning device for the surface of a bottle cap, characterized in that, Including: A frame, on which extension plates (1) extend upward on opposite sides. A conveyor belt (2) is arranged between the two extension plates (1). The conveyor belt (2) has a waist-shaped closed structure, and a plurality of pallet plates (21) are transversely arranged on its outer wall. Side baffles (12) are arranged between the same sides of the two extension plates (1). The side baffles (12) are in sliding fit with the long side side walls of the pallet plates (21). Spraying mesh holes are arranged on the conveyor belt (2) between adjacent pallet plates (21). Thus, the space between adjacent pallet plates (21) is an independent cleaning space that is temporarily closed on three sides and has spraying mesh holes on one side. A flushing head (6) that transversely penetrates from inside the conveyor belt (2) is arranged between the two extension plates (1). The spraying mesh holes serve as channels for the flushing liquid to enter and drain. The independent cleaning space is used for batch temporarily storing the bottle caps to be cleaned. A plurality of bottle caps in the same independent cleaning space are horizontally distributed in a linear structure. A plurality of air inlets are arranged from top to bottom on the same side of the two extension plates (1). The two air inlets opposite at the same horizontal height alternate in admitting air. A plurality of bottle caps in the independent cleaning space are alternately subjected to high-pressure blowing forces from two directions in the horizontal direction, and the bottle caps come into contact with the injected flushing liquid under dynamic conditions.

2. The pre-cleaning device for the bottle cap surface according to claim 1, wherein, A high-pressure pump is installed at the bottom end of one of the extension plates (1). The air outlet of the high-pressure pump is connected to a reversing box (31). Guide pipes 1 (32) and guide pipes 2 (33) are oppositely arranged on the outer wall of the reversing box (31). The guide pipe 1 (32) is communicated with a plurality of air inlets on one of the extension plates (1), and the guide pipe 2 (33) is communicated with a plurality of air inlets on the other extension plate (1). The guide pipe 1 (32) and the guide pipe 2 (33) alternate in admitting air.

3. The pre-cleaning device for the surface of the bottle cap according to claim 2, characterized in that, A transmission rod that can rotate in the reversing box (31) is inserted into the reversing box (31). A connecting rod (34) is radially fixed at the end of the transmission rod. A sealing gasket (35) is fixed at the end of the connecting rod (34). The sealing gasket (35) has a half-circular structure, and its width is equal to the inner diameter of the guide pipe 1 (32) or the guide pipe 2 (33).

4. The pre-cleaning device for the bottle cap surface according to claim 1, characterized in that A hot air inlet (16) is arranged on the side wall of one of the extension plates (1), and the hot air inlet (16) provides a hot air inlet channel for the passing bottle caps. A discharge port (17) is arranged on the side wall of the other extension plate (1), and the discharge port (17) provides a discharging channel for the dried bottle caps.

5. The pre-cleaning device for the bottle cap surface according to claim 1, wherein A recovery tank (13) is arranged on the frame below the two extension plates (1). A filter screen (14) is arranged in the recovery tank (13). The filter screen (14) divides the recovery tank (13) into two parts. The space above the filter screen (14) in the recovery tank (13) is a solid recovery tank, and the space below the filter screen (14) in the recovery tank (13) is a liquid recovery tank.

6. The pre-cleaning device for the surface of the bottle cap according to claim 1, characterized in that, It further includes an inclined feed chute (4). The bottom end of the side baffle (12) is provided with a feed inlet. The lower end of the feed chute (4) with a lower height is docked with the feed inlet. Anti-falling extension parts extend upward from the two side walls of the feed chute (4). Flow guide plates (42) are provided on the opposite side walls of the two anti-falling extension parts. The ends of the two flow guide plates (42) close to the feed inlet are arranged close to each other, forming a reduced opening with an opening smaller than the feed inlet.

7. The pre-cleaning device for the bottle cap surface according to claim 6, wherein, The lower end of the feed chute (4) with a lower height extends downward and bends to form a bent guiding end, and the bent guiding end passes through the feed inlet and is in sliding fit with the side wall of the long side end of the support plate (21).

8. The pre-cleaning device for the surface of the bottle cap according to claim 7, characterized in that, A hollow cavity is formed in the feed chute (4). Driving rollers (45) are rotatably installed at both ends in the hollow cavity. A conveyor belt (41) is wound around between the two driving rollers (45). The end of one of the driving rollers (45) rotatably extends to the side wall of the feed chute (4) and is connected with a small gear disk (43). A motor is fixed to the bottom wall of the feed chute (4). The output end of the motor is connected with a large gear disk (44) meshing with the small gear disk (43), and the motor provides forward and reverse driving power for the large gear disk (44).

9. A quick water filtering component for the bottle cap, which is used for the surface pre-cleaning device of the bottle cap according to any one of claims 1-8, and is characterized in that, It includes a plurality of narrow notches (22) formed in the support plate (21).

10. The quick water filtering component of the bottle cap according to claim 9, characterized in that A plurality of rubber bumps which are arranged in a line and have a width larger than that of the narrow notches (22) are provided on the side wall of the side baffle (12) facing the support plate (21). The support plate (21) circulates and drives along with the conveyor belt (2). The narrow notches (22) of the support plate (21) pass through the rubber bumps in sequence. The rubber bumps are extruded by the narrow notches (22), increasing the friction force with the inner wall of the narrow notches (22), and local shaking force is generated on the conveyor belt (2).

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