Dry type PET bottle flake cleaning equipment and method

Abstract

The invention relates to the technical field of PET bottle chip processing, and discloses dry type PET bottle chip cleaning equipment which comprises a dry cleaning box, a dust suction hood is annularly installed at the upper end of the inner wall of the cleaning box, the dust suction hood is communicated with a dust suction mechanism arranged on the outer wall of the dry cleaning box, a baffle ring is further installed on the inner wall of the dry cleaning box, and a plurality of baffle frames are fixedly installed on the edge of the baffle ring; a plurality of vibrating plates are hinged to the edge of the bottom of the baffle through connecting parts, a vibrating cylinder is fixedly installed at the bottom of the baffle, a vibrating shaft is rotatably installed in the vibrating cylinder, a vibrating mechanism is arranged on the vibrating cylinder, and the bottom of the vibrating shaft penetrates through the bottom of the dry cleaning box to be connected with a rotating mechanism; a flapping mechanism is further arranged on the vibrating shaft on the bottom side in the dry cleaning box; the invention further discloses a cleaning method. According to the dust removal device, the flapping mechanism and the vibration mechanism are arranged, the dual-function dry type cleaning effect on dust attached to PET bottle chips is achieved, water is not used in the whole cleaning process, and pollution to the environment is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of PET flake processing, and specifically to a dry PET flake cleaning device and method. Background Art

[0002] PET is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It has excellent physical and mechanical properties within a relatively wide temperature range. PET bottles cannot be degraded in a natural way. In order to reduce pollution and improve resource utilization at the same time, waste PET bottles are generally subjected to additional treatment.

[0003] After PET bottles are broken, they form PET flakes. When processing PET flakes, cleaning equipment is needed to remove the floating dust and impurities attached to the PET flakes. The current processing method is to clean the PET flakes by means of rinsing and stirring to achieve the additional treatment of PET flakes. However, a large amount of water is used in this processing method during the cleaning process, and a large amount of sewage will be generated after the cleaning work is completed, seriously affecting the ecological environment. At the same time, after the PET flakes are cleaned, a large amount of water will adhere to the PET flakes. Therefore, an additional drying device is needed to dry the PET flakes, which is time-consuming and laborious. Therefore, further improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a dry PET flake cleaning device and method to solve the problems raised in the above background art.

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

[0006] A dry PET flake cleaning device includes a dry cleaning box. At the upper end position of the inner wall of the dry cleaning box, a dust suction hood is annularly installed. The dust suction hood is provided with a plurality of dust suction holes, and the dust suction hood is connected and installed with a dust suction mechanism arranged on the outer wall of the dry cleaning box. A retaining ring is also installed on the inner wall of the dry cleaning box. A plurality of retaining frames are fixedly installed at the edge of the retaining ring. A baffle is fixedly installed on the retaining frame. At the bottom edge position of the baffle, a plurality of vibrating plates are hingedly installed through a connecting part. A vibrating cylinder is fixedly installed at the bottom of the baffle. A vibrating shaft is rotatably installed inside the vibrating cylinder. A vibrating mechanism for driving the plurality of vibrating plates to vibrate is arranged on the vibrating cylinder. The bottom of the vibrating shaft passes through the bottom of the dry cleaning box and is connected with a rotating mechanism. A beating mechanism is also arranged on the vibrating shaft at the bottom side position inside the dry cleaning box.

[0007] As an improved scheme of the present invention: The top of the dry cleaning box is connected and installed with a sheet inlet, and the sheet inlet is designed with a flared structure. The bottom of the dry cleaning box is connected and installed with a plurality of sheet outlets. A plurality of fixing legs are also fixedly installed at the bottom edge position of the dry cleaning box.

[0008] As an improved solution of the present invention: The dust suction mechanism includes a dust collection box fixed on the outer wall of the dry cleaning box. The dust collection box is connected to a dust suction hood through a dust suction pipe, and a negative pressure pump is also connected and installed on the dust suction pipe.

[0009] As an improved solution of the present invention: The vibration mechanism includes a vibration block slidably arranged vertically inside the vibration cylinder. A plurality of vibration rods are fixedly installed on the outer wall of the vibration block. The vibration rods pass through vibration slots provided on the side wall of the vibration cylinder and are hinged to a thrust frame. The thrust frame is hinged to the lower surface position of the vibration plate. The vibration shaft is connected to the vibration block through a threaded part.

[0010] As an improved solution of the present invention: The threaded part includes an internal threaded hole provided on the vibration block and an external threaded sleeve provided on the outer wall of the vibration shaft. The internal threaded hole and the external threaded sleeve are in threaded cooperation with each other.

[0011] As an improved solution of the present invention: The connecting part includes connecting frames symmetrically fixed at the bottom position of the baffle. A connecting shaft is rotatably installed between the connecting frames. The connecting shaft is sleeved on the edge position of the vibration plate, and connecting springs are also sleeved and installed at both ends of the connecting shaft.

[0012] As an improved solution of the present invention: The beating mechanism includes a plurality of beating frames fixedly installed on the vibration shaft. A fixing plate is vertically installed on the beating frame close to the vibration shaft side. A transmission shaft is horizontally rotatably installed on the fixing plate. One end of the transmission shaft away from the vibration shaft is installed with a horizontally arranged beating shaft through a transmission part. A plurality of beating blades are installed on the beating shaft. A shaking part is provided at one end of the beating shaft away from the transmission shaft. The beating mechanism also includes an engagement assembly.

[0013] As an improved solution of the present invention: The engagement assembly includes a fixed shaft vertically fixed at the bottom of the vibration cylinder. The vibration shaft is sleeved and rotatably installed inside the fixed shaft. A fixed gear is fixedly installed at the bottom of the fixed shaft. A plurality of beating gears are meshed outside the fixed gear. The beating gears are fixedly installed at the position of one end of the transmission shaft close to the vibration shaft.

[0014] As an improved solution of the present invention: The transmission part includes a transmission groove provided inside the transmission shaft and a transmission strip fixed on the outside of the beating shaft. The transmission strip is slidably arranged inside the transmission groove.

[0015] As an improved solution of the present invention: The shaking part includes a horizontal plate fixedly installed on the beating frame. A shaking column is vertically installed on the horizontal plate. The shaking column slides in a shaking groove provided at the side wall position of the end of the beating shaft. The shaking groove is designed as a symmetrically arranged closed curved surface groove structure.

[0016] As an improved solution of the present invention: the rotating mechanism includes an L-shaped plate fixedly installed at the bottom position of the dry cleaning box, a rotating motor is installed on the L-shaped plate, the output end of the rotating motor is fixedly connected to a rotating frame, a rotating rack is hingedly installed on the rotating frame, a rotating gear is meshed on the outer side of the rotating rack, the rotating gear is fixedly connected to the bottom position of the vibration shaft, and a U-shaped plate is also arranged between the rotating rack and the rotating rack, and the U-shaped plate is rotatably arranged on the vibration shaft.

[0017] A method for washing PET bottle flakes using the above-mentioned dry PET bottle flake washing equipment comprises the following steps:

[0018] S1. First, the PET bottle flakes are introduced into the dry cleaning box through the flake inlet, and the rotating motor and the negative pressure pump are started at the same time;

[0019] S2. The vibration plate vibrates up and down under the action of the vibration mechanism, so that the PET bottle flakes continuously move downward while vibrating, and the flapping leaves continuously rotate and move to flap the falling PET bottle flakes, so as to perform a dual-action separation of the dust attached to the PET bottle flakes;

[0020] S3, the separated dust is adsorbed into the dust hood by the dust collection mechanism and is centrally processed through the dust collection box;

[0021] S4, the cleaned PET bottle pieces are collected and processed through the sheet outlet, and the cleaning is completed, and the rotating motor and the negative pressure pump are turned off at the same time.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By setting a vibration mechanism at the upper side of the dry cleaning box, the PET bottle flakes can fall intermittently and orderly on the vibration plate while continuously vibrating up and down, achieving the purpose of cleaning the dust attached to the PET bottle flakes at one time, greatly improving the cleaning quality;

[0024] 2. By setting a beating mechanism at the lower side of the dry cleaning box, the beating blades can rotate linearly and reciprocatingly while revolving, ensuring the effective beating of PET bottle flakes and achieving the secondary cleaning of dust attached to PET bottle flakes, further improving the cleaning quality;

[0025] 3. By setting a dust cover inside the dry cleaning box and cooperating with the dust collection mechanism, the dust separated from the PET can be efficiently recovered, so that no water is used in the entire cleaning process, thus avoiding environmental pollution. At the same time, since there is no water involved, the drying process of the drying equipment is also omitted, which is highly practical.

[0026] 4. Regarding the vibration mechanism and the flapping mechanism, the synchronous operation of the above two mechanisms can be achieved by using one driving source for the rotating mechanism, further reducing the operating cost of the equipment and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic front view structure diagram of the whole of the present invention;

[0028] Figure 2 It is a schematic bottom view structure diagram of the whole of the present invention;

[0029] Figure 3 It is a schematic left - right sectional view structure diagram of the present invention;

[0030] Figure 4 It is a schematic front - back sectional view structure diagram of the present invention;

[0031] Figure 5 It is a schematic structure diagram of the vibration mechanism in the present invention;

[0032] Figure 6 It is a schematic structure diagram of the flapping mechanism in the present invention;

[0033] Figure 7 It is a schematic structure diagram of the rotating mechanism in the present invention;

[0034] Figure 8 It is a schematic installation structure diagram of the vibration plate in the present invention;

[0035] Figure 9 It is a schematic structure diagram of the vibration block in the present invention;

[0036] Figure 10 It is Figure 6 a partially enlarged structure diagram of A in

[0037] Figure 11 It is Figure 6 a partially enlarged structure diagram of B in

[0038] Figure 12 It is Figure 8 a partially enlarged structure diagram of C in

[0039] In the figure: 1, dry cleaning box; 2, film inlet; 3, film outlet; 4, fixed leg; 5, dust collection box; 6, dust suction pipe; 7, negative pressure pump; 8, rotating motor; 9, dust suction hood; 10, baffle; 11, retaining frame; 12, vibrating plate; 13, vibrating cylinder; 14, vibrating shaft; 15, external thread sleeve; 16, fixed shaft; 17, flapping frame; 18, retaining ring; 19, vibrating groove; 20, thrust frame; 21, vibrating block; 22, vibrating rod; 23, flapping shaft; 24, flapping blade; 25, transmission shaft; 26, fixed gear; 27, flapping gear; 28, fixed plate; 29, L-shaped plate; 30, rotating frame; 31, rotating rack; 32, U-shaped plate; 33, rotating gear; 34, internal thread hole; 35, connecting frame; 36, connecting shaft; 37, connecting spring; 38, swaying groove; 39, swaying column; 40, horizontal plate; 41, transmission bar. Detailed implementation mode

[0040] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0044] Embodiment 1: Refer to Figures 1 to 12, in the embodiment of the present invention, a dry PET flake cleaning device includes a dry cleaning box 1. The upper end of the dry cleaning box 1 is designed with a conical cylinder structure, so as to better collect dust. A dust suction hood 9 is annularly installed at the upper end of the inner wall of the dry cleaning box 1. The dust suction hood 9 is also designed with a conical cylinder structure. A plurality of dust suction holes are provided on the dust suction hood 9. The dust suction hood 9 is connected and installed with a dust suction mechanism arranged on the outer wall of the dry cleaning box 1. A retaining ring 18 is further installed on the inner wall of the dry cleaning box 1. A plurality of retaining frames 11 are fixedly installed at the edge of the retaining ring 18. A baffle 10 is fixedly installed on the retaining frame 11. A plurality of vibrating plates 12 are hingedly installed at the bottom edge position of the baffle 10 through a connecting part, so that the vibrating plates 12 can swing at a certain angle with the baffle 10. At the same time, in order to facilitate the effective collection of dust, a plurality of dust suction holes are also provided on the vibrating plates 12. A vibrating cylinder 13 is fixedly installed at the bottom of the baffle 10. A vibrating shaft 14 is rotatably installed inside the vibrating cylinder 13. A vibrating mechanism for driving a plurality of vibrating plates 12 to vibrate is provided on the vibrating cylinder 13. The bottom of the vibrating shaft 14 passes through the bottom of the dry cleaning box 1 and is connected with a rotating mechanism. A beating mechanism is also provided on the vibrating shaft 14 at the bottom side position inside the dry cleaning box 1.

[0045] In one case of this embodiment, a sheet inlet 2 is connected and installed at the top of the dry cleaning box 1. The sheet inlet 2 is designed with a flared structure, so as to ensure the orderly introduction of PET flakes into the dry cleaning box 1 through the sheet inlet 2. In addition, a plurality of sheet outlets 3 are connected and installed at the bottom of the dry cleaning box 1, realizing the effective discharge of the cleaned PET flakes. At the same time, in order to support the whole device, a plurality of fixed legs 4 are fixedly installed at the bottom edge position of the dry cleaning box 1.

[0046] In order to quickly discharge the dust generated after the dry cleaning of PET flakes, in this embodiment, the dust suction mechanism includes a dust collection box 5 fixed on the outer wall of the dry cleaning box 1. The dust collection box 5 is a common box structure on the market and is equipped with an opening and closing door structure, so as to realize the discharge treatment of the collected dust inside. The dust collection box 5 is connected to the dust suction hood 9 through a dust suction pipe 6. A negative pressure pump 7 is also connected and installed on the dust suction pipe 6. By using the negative pressure working principle of the negative pressure pump 7, a negative pressure effect is generated on the dust suction hood 9, and then the dust generated inside the dry cleaning box 1 can be quickly adsorbed into the dust collection box 5 for treatment.

[0047] In addition, in order to achieve the normal synchronous operation of the vibration mechanism and the flapping mechanism, in this embodiment, the rotation mechanism includes an L-shaped plate 29 fixedly installed at the bottom of the dry cleaning box 1. A rotation motor 8 is installed on the L-shaped plate 29. The output end of the rotation motor 8 is fixedly connected to a rotation frame 30. A rotation rack 31 is hingedly installed on the rotation frame 30. A rotation gear 33 is meshed outside the rotation rack 31. The rotation gear 33 is fixedly connected to the bottom of the vibration shaft 14. A U-shaped plate 32 is further arranged between the rotation racks 31. The U-shaped plate 32 is rotatably arranged on the vibration shaft 14.

[0048] Start the rotation motor 8 to make the rotation frame 30 move synchronously, so that the rotation rack 31 is constantly moving back and forth while always meshing with the rotation gear 33 under the limiting action of the U-shaped plate 32, and finally make the vibration shaft 14 generate periodic reciprocating motion in the clockwise and counterclockwise directions.

[0049] In one case of this embodiment, the vibration mechanism includes a vibration block 21 slidably arranged vertically inside the vibration cylinder 13. A plurality of vibration rods 22 are fixedly installed on the outer wall of the vibration block 21. The vibration rods 22 pass through vibration slots 19 arranged on the side wall of the vibration cylinder 13 and are hingedly installed with a thrust frame 20. The other end of the thrust frame 20 is hingedly installed at the lower surface position of the vibration plate 12. The vibration shaft 14 is connected to the vibration block 21 through a threaded part.

[0050] Among them, in order to convert the rotational motion of the vibration shaft 14 into the linear motion of the vibration block 21 inside the vibration cylinder 13, in this embodiment, the threaded part includes an internal threaded hole 34 arranged on the vibration block 21 and an external threaded sleeve 15 arranged on the outer wall of the vibration shaft 14. The internal threaded hole 34 and the external threaded sleeve 15 are in threaded cooperation with each other.

[0051] At the same time, in order to ensure the articulated installation of the vibration plate 12 on the baffle 10, in this embodiment, the connecting part includes connecting frames 35 symmetrically fixed at the bottom of the baffle 10. A connecting shaft 36 is rotatably installed between the connecting frames 35. The connecting shaft 36 is sleeved on the edge position of the vibration plate 12. Connecting springs 37 are also sleeved at both ends of the connecting shaft 36.

[0052] The working principle of the above vibration mechanism is: during the reciprocating motion of the vibration shaft 14, through the cooperation of the threaded part, the vibration block 21 only generates up and down linear motion under the limiting action of the vibration slot 19 and the vibration rod 22, and then cooperates with the thrust frame 20 to make the plurality of vibration plates 12 continuously shake up and down under the cooperation of the connecting part. On the one hand, the above movement process makes the PET flakes vibrate up and down, and on the other hand, it also makes the PET flakes fall orderly into the area below the dry cleaning box 1.

[0053] In the preferred case of this embodiment, the flapping mechanism includes a plurality of flapping frames 17 fixedly mounted on the vibration shaft 14, a fixed plate 28 is vertically mounted on the flapping frame 17 close to the vibration shaft 14, a transmission shaft 25 is horizontally mounted on the fixed plate 28 for rotation, a horizontally arranged flapping shaft 23 is mounted on the end of the transmission shaft 25 away from the vibration shaft 14 through a transmission part, a plurality of flapping leaves 24 are mounted on the flapping shaft 23, and the flapping mechanism also includes a meshing assembly.

[0054] Among them, in order to enable the transmission shaft 25 to generate self-rotation movement along its axial direction, the meshing assembly includes a fixed shaft 16 vertically fixed at the bottom of the vibration cylinder 13, and the vibration shaft 14 is rotatably installed inside the fixed shaft 16. A fixed gear 26 is fixedly installed at the bottom of the fixed shaft 16, and a plurality of flapping gears 27 are meshed on the outside of the fixed gear 26. The flapping gear 27 is fixedly installed on one end of the transmission shaft 25 close to the vibration shaft 14.

[0055] The working principle of the above-mentioned beating mechanism is: during the rotation of the vibration shaft 14, the entire beating frame 17 will rotate synchronously. Since the fixed gear 26 is fixed to the bottom of the vibration cylinder 13 through the fixed shaft 16, during the rotation of the entire beating frame 17, multiple beating gears 27 will produce meshing force with the fixed gear 26, thereby causing the beating gear 27 itself to rotate. Then, under the action of the transmission shaft 25, the beating shaft 23 rotates synchronously, thereby driving the multiple beating leaves 24 at the corresponding positions to move synchronously, and then the PET bottle flakes in the falling process are beaten, causing them to bend and deform, thereby accelerating the rapid separation of the attached dust.

[0056] A method for washing PET bottle flakes using the above-mentioned dry PET bottle flake washing equipment comprises the following steps:

[0057] S1, firstly, the PET bottle flakes are introduced into the dry cleaning box 1 through the flake inlet 2, and the rotating motor 8 and the negative pressure pump 7 are started at the same time;

[0058] S2, the vibration plate 12 vibrates up and down under the action of the vibration mechanism, so that the PET bottle flakes continuously move downward while vibrating, and the flapping leaves 24 continuously rotate and move to flap the falling PET bottle flakes to separate the dust attached to the PET bottle flakes;

[0059] S3, the separated dust is adsorbed into the dust hood 9 by the dust collection mechanism, and is centrally processed by the dust collection box 5;

[0060] S4, the cleaned PET bottle flakes are collected and processed through the flake outlet 3, and the cleaning is now completed, and the rotating motor 8 and the negative pressure pump 7 are turned off at the same time.

[0061] Example 2: See Figure 10, the present invention also provides another embodiment, which is different from the above embodiment in that a shaking part is provided at one end of the beating shaft 23 far from the transmission shaft 25.

[0062] The shaking part includes a horizontal plate 40 fixedly installed on the beating frame 17. A shaking column 39 is vertically installed on the horizontal plate 40. The shaking column 39 slides in a shaking groove 38 provided at the side wall position of the end of the beating shaft 23. The shaking groove 38 is designed as a symmetrically arranged closed curved surface groove structure.

[0063] In addition, in order to ensure that the beating shaft 23 does not affect the transmission of its own torque when reciprocating linearly along its axis, in this embodiment, the transmission part includes a transmission groove provided inside the transmission shaft 25 and a transmission strip 41 fixed outside the beating shaft 23. The transmission strip 41 is slidably arranged inside the transmission groove.

[0064] By the mutual cooperation of the shaking part and the transmission part, the multiple beating blades 24 not only revolve but also continuously rotate on their own axes, and can also generate a linear displacement of a certain distance during rotation, thereby increasing the probability of random beating between the beating blades 24 and the PET bottle chips, and further improving the dry cleaning quality of the beating mechanism.

[0065] In summary: During operation, first, the PET bottle chips are poured into the dry cleaning box 1 through the sheet inlet 2. At the same time, the rotation motor 8 and the negative pressure pump 7 are started. The rotation motor 8 directly drives the rotation frame 30 to rotate. Then, with the cooperation of the rotation mechanism, the vibration shaft 14 reciprocates periodically clockwise and counterclockwise. During this process, due to the threaded cooperation of the threaded part and under the action of the vibration mechanism, the vibration plate 12 continuously vibrates up and down under the restriction of the connecting part, so that a large number of PET bottle chips originally above the vibration plate 12 are jolted up and down, and the dust attached to the PET bottle chips themselves is continuously shaken off, thereby achieving the purpose of primary dry cleaning. At the same time, while the PET bottle chips are vibrating up and down, they continuously fall through the gap space formed by the vibration plate 12 and the retaining ring 18. At the same time, the entire beating frame 17 revolves continuously along the axis direction of the vibration shaft 14. And under the action of the beating mechanism, the beating shaft 23 rotates on its own axis and reciprocates back and forth along its axis direction, so that the beating blades 24 generate corresponding beating forces, and thus the PET bottle chips will be impacted and deformed by the beating blades 24 in the moving state during the falling process, achieving the purpose of secondary dry cleaning of the PET bottle chips. The dust generated by the two dry cleanings will, under the action of the dust collection mechanism, be sucked into the dust collection box 5 through the dust collection hood 9 for centralized treatment, and the PET bottle chips after two cleanings are exported through the sheet outlet 3.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dry PET bottle flake cleaning device, comprising a dry cleaning box (1), characterized in that: A dust hood (9) is annularly mounted on the upper end of the inner wall of the dry cleaning box (1), and a plurality of dust suction holes are arranged on the dust hood (9). The dust hood (9) is connected to a dust suction mechanism arranged on the outer wall of the dry cleaning box (1). A baffle ring (18) is also mounted on the inner wall of the dry cleaning box (1). A plurality of baffle frames (11) are fixedly mounted on the edge of the baffle ring (18), and a baffle plate (10) is fixedly mounted on the baffle frame (11). A plurality of vibration plates (12) are hingedly mounted on the bottom edge of the baffle plate (10) through a connecting portion. A vibration cylinder (13) is fixedly mounted on the bottom of the baffle plate (10), and a vibration shaft (14) is rotatably mounted inside the vibration cylinder (13). A vibration mechanism for driving the plurality of vibration plates (12) to vibrate is arranged on the vibration cylinder (13). The bottom of the vibration shaft (14) passes through the bottom of the dry cleaning box (1) and is connected to a rotation mechanism. A beating mechanism is also arranged on the vibration shaft (14) located at the bottom side of the dry cleaning box (1).

2. A dry PET bottle flakes washing equipment according to claim 1, characterized in that: The top of the dry cleaning box (1) is connected to a film inlet (2) which is designed as a bell-mouth structure. The bottom of the dry cleaning box (1) is connected to a plurality of film outlets (3). The bottom edge of the dry cleaning box (1) is also fixedly provided with a plurality of fixed legs (4).

3. The dry PET bottle flakes washing equipment according to claim 1, characterized in that: The dust collection mechanism comprises a dust collection box (5) fixed to the outer wall of the dry cleaning box (1); the dust collection box (5) is connected to the dust collection hood (9) via a dust collection pipe (6); and a negative pressure pump (7) is also connected to the dust collection pipe (6).

4. The dry PET bottle flakes washing equipment according to claim 1, characterized in that: The vibration mechanism comprises a vibration block (21) vertically slidably arranged inside a vibration cylinder (13); a plurality of vibration rods (22) are fixedly mounted on the outer wall of the vibration block (21); the vibration rods (22) pass through vibration grooves (19) arranged on the side wall of the vibration cylinder (13) and are hingedly mounted on a thrust frame (20); the thrust frame (20) is hingedly mounted on the lower surface of the vibration plate (12); and the vibration shaft (14) is connected to the vibration block (21) via a threaded portion.

5. The dry PET bottle flakes washing equipment according to claim 4, characterized in that: The threaded portion comprises an internal threaded hole (34) arranged on the vibration block (21) and an external threaded sleeve (15) arranged on the outer wall of the vibration shaft (14), the internal threaded hole (34) and the external threaded sleeve (15) being threadedly matched with each other; the connecting portion comprises a connecting frame (35) symmetrically fixed at the bottom position of the baffle (10), a connecting shaft (36) being rotatably mounted between the connecting frames (35), the connecting shaft (36) being sleeved and mounted on the edge position of the vibration plate (12), and connecting springs (37) being sleeved and mounted at both ends of the connecting shaft (36).

6. The dry PET bottle flakes washing equipment according to claim 1, characterized in that: The flapping mechanism comprises a plurality of flapping frames (17) fixedly mounted on a vibration shaft (14); a fixing plate (28) is vertically mounted on the flapping frame (17) on a side close to the vibration shaft (14); a transmission shaft (25) is horizontally rotatably mounted on the fixing plate (28); a horizontally mounted flapping shaft (23) is mounted on one end of the transmission shaft (25) away from the vibration shaft (14) through a transmission part; a plurality of flapping leaves (24) are mounted on the flapping shaft (23); and a shaking part is arranged on one end of the flapping shaft (23) away from the transmission shaft (25); the flapping mechanism further comprises a meshing assembly.

7. The dry PET bottle flakes washing equipment according to claim 6, characterized in that: The meshing assembly comprises a fixed shaft (16) vertically fixed to the bottom of the vibration cylinder (13), a vibration shaft (14) being rotatably mounted inside the fixed shaft (16), a fixed gear (26) being fixedly mounted on the bottom of the fixed shaft (16), a plurality of beating gears (27) being meshed on the outside of the fixed gear (26), and the beating gears (27) being fixedly mounted on a transmission shaft (25) at one end close to the vibration shaft (14).

8. The dry PET bottle flakes washing equipment according to claim 7, characterized in that: The transmission part comprises a transmission groove arranged inside the transmission shaft (25) and a transmission bar (41) fixed outside the beating shaft (23), wherein the transmission bar (41) is slidably arranged inside the transmission groove; the shaking part comprises a horizontal plate (40) fixedly mounted on the beating frame (17), a shaking column (39) being vertically mounted on the horizontal plate (40), and the shaking column (39) slidingly sliding in a shaking groove (38) arranged at a side wall position of the end of the beating shaft (23), and the shaking groove (38) is a symmetrically arranged closed curved groove structure design.

9. The dry PET bottle flakes washing equipment according to claim 1, characterized in that: The rotating mechanism comprises an L-shaped plate (29) fixedly mounted at the bottom of the dry cleaning box (1); a rotating motor (8) is mounted on the L-shaped plate (29); an output end of the rotating motor (8) is fixedly connected to a rotating frame (30); a rotating rack (31) is hingedly mounted on the rotating frame (30); a rotating gear (33) is meshed on the outer side of the rotating rack (31); the rotating gear (33) is fixedly connected to the bottom of the vibration shaft (14); a U-shaped plate (32) is further arranged between the rotating rack (31) and the rotating rack (31); the U-shaped plate (32) is rotatably arranged on the vibration shaft (14).

10. A method for washing PET bottle flakes using the dry PET bottle flake washing equipment according to any one of claims 1 to 9, characterized in that: The steps include: S1, firstly, the PET bottle flakes are introduced into the dry cleaning box (1) through the flake inlet (2), and at the same time, the rotating motor (8) and the negative pressure pump (7) are started; S2, the vibration plate (12) vibrates up and down under the action of the vibration mechanism, so that the PET bottle flakes continuously move downward while vibrating, and the beating blades (24) continuously rotate and move to beat the falling PET bottle flakes, thereby performing a dual-action separation of dust attached to the PET bottle flakes; S3, the separated dust is adsorbed into the dust collection hood (9) by the dust collection mechanism, and is centrally processed through the dust collection box (5); S4, the cleaned PET bottle flakes are collected and processed through the flake outlet (3), and the cleaning is now completed. At the same time, the rotating motor (8) and the negative pressure pump (7) are turned off.

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