A dust removal device for PET bottle grade polyester chip

Abstract

This invention discloses a dust removal device for PET bottle-grade polyester chips, relating to the field of PET bottle-grade polyester chip processing technology. It includes a dust removal box with a storage bin for storing PET bottle-grade polyester chips; a collection bin at the bottom of the dust removal box for storing the dust-removed PET bottle-grade polyester chips; a dust removal cylinder rotatably arranged within the dust removal box, with several sets of dust discharge holes evenly distributed on the cylinder wall; and a feeding module, a dust removal module, and a discharging module. The feeding module conveys the PET bottle-grade polyester chips from the storage bin to the dust removal cylinder; the dust removal module removes dust from the PET bottle-grade polyester chips in the dust removal cylinder; and the discharging module discharges the dust-removed PET bottle-grade polyester chips into the collection bin. Compared to existing vibrating screen dust collectors, this invention can effectively and completely adsorb the fine dust adhering to the surface of the PET bottle-grade polyester chips, resulting in better dust removal performance.

Description

Technical Field

[0001] This invention relates to the field of PET bottle-grade polyester chip processing technology, specifically to a dust removal device for PET bottle-grade polyester chips. Background Technology

[0002] PET bottle-grade polyester chips have been widely used in recent years for food and beverage packaging such as mineral water, edible oil, fruit juice, tea, and soft drinks due to their low acetaldehyde content, good heat resistance and thermal stability, pressure resistance, and acid and alkali resistance.

[0003] In the production of PET bottle-grade polyester chips, after crystallization and drying, a significant amount of dust adheres to the surface of the chips. If not removed promptly, this dust will not only clog the filters of processing machines, shorten continuous production time, and reduce production efficiency during subsequent processing, but will also introduce impurities and crystal points into the finished polyester products, affecting their quality. Therefore, dust removal treatment can remove dust, impurities, and other contaminants from the chip surface, ensuring the purity of the polyester chips and thus improving product quality.

[0004] In existing technologies, vibrating screens are commonly used to screen and remove large particles of impurities and dust from slices. Vibrating screens cause the slices to jump and roll on the screen mesh, thus separating dust and impurities from the slices. However, in practical applications, vibrating screens alone cannot completely remove small particles of dust adhering to the slice surface. Simultaneously, dust also adheres to the surface of the vibrating screen, requiring regular cleaning, which is quite cumbersome. Summary of the Invention

[0005] The purpose of this invention is to provide a dust removal device for PET bottle-grade polyester chips, solving the following technical problems:

[0006] For some small dust particles attached to the surface of the slices, a vibrating screen alone cannot remove them all. At the same time, the dust will also adhere to the surface of the vibrating screen.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A dust removal device for PET bottle-grade polyester chips includes a dust removal box, a storage box for storing PET bottle-grade polyester chips on the dust removal box; a collection box for storing PET bottle-grade polyester chips after dust removal at the bottom of the dust removal box; and a dust removal cylinder is rotatably arranged in the dust removal box, with several sets of dust discharge holes evenly opened on the cylinder wall.

[0009] It also includes a feeding module, a dust removal module, and a discharging module. The feeding module is used to convey PET bottle-grade polyester chips in the storage bin to the dust removal cylinder; the dust removal module is used to remove dust from the PET bottle-grade polyester chips in the dust removal cylinder; and the discharging module is used to discharge the dust-removed PET bottle-grade polyester chips into a collection box.

[0010] The dust removal module includes a stirring mechanism arranged in a dust removal cylinder for stirring the PET bottle-grade polyester chips to be dusted, and a dust suction mechanism for adsorbing dust on the surface of the PET bottle-grade polyester chips.

[0011] Preferably, the stirring mechanism includes a stirring cylinder rotatably arranged in the dust collector cylinder, and the stirring cylinder and the dust collector cylinder are arranged coaxially;

[0012] The dust collector has several sets of tipping plates arranged in a circumferential array. One end of the tipping plate slides against the inner wall of the dust collector, and the other end is connected to the mixing cylinder through an elastic module. The mixing mechanism also includes a rotating part, which is used to drive the mixing cylinder to rotate.

[0013] Preferably, the rotating part includes a first gear symmetrically arranged on the outside of the dust collector, and the stirring cylinder extends to both sides and is fixed to the first gear;

[0014] The dust collector contains two sets of first racks arranged symmetrically for meshing with the first gear, and the first racks on both sides are fixed to the cylinder drive end that is fixedly arranged on the outside of the dust collector.

[0015] Preferably, the stirring cylinder is a hollow structure, and several rows of air jet holes are circumferentially opened on the cylinder wall;

[0016] The dust collector has cylinders fixedly arranged symmetrically on both sides, and pistons are slidably arranged in the cylinders. The pistons and the side walls of the cylinders form an air chamber. An air inlet pipe is provided on the air chamber and extends to the outside of the dust collector. An air delivery pipe is provided on the other side of the air chamber. The other end of the air delivery pipe is rotatably connected to the stirring cylinder. The piston is connected to the pusher that drives it to reciprocate in the cylinder.

[0017] Preferably, the pushing part includes a cam fixedly disposed on one side of the first gear;

[0018] The piston is fixed to the push rod, the other end of the push rod extends to the outside of the cylinder and is fixed to the push plate, the cam slides against the push plate, and a second spring is provided on the push rod.

[0019] Preferably, the dust removal module further includes dust collection plates arranged in a circumferential array around the dust collection cylinder. The dust collection plates have dust collection grooves facing the dust collection cylinder. Each dust collection plate is connected to an annular pipe through a pipe. The annular pipe is connected to a negative pressure pipe through a negative pressure plate. The negative pressure pipe is connected to an external dust collection device.

[0020] Preferably, a screw is rotatably arranged in the dust collector box. The screw is fixed to the output end of the drive motor that is fixedly arranged on the outside of the dust collector box. A nut is screwed on the screw, and the nut is fixed to the dust collector cylinder through two sets of support shafts.

[0021] Preferably, the feeding module includes a feeding trough opened on the dust removal cylinder, a first baffle plate is slidably embedded in the feeding trough, the end of the feeding trough facing the storage box is connected to the feeding box, the feeding box has symmetrical feeding ports on both sides, the bottom of the storage box is provided with a feeding frame for embedding the feeding box, and the feeding frame has symmetrical discharge ports on both sides for receiving the feeding ports.

[0022] The feeding module further includes an adjustment unit, which is used to drive the first baffle plate to slide in the feeding groove.

[0023] Preferably, a sealing plate is slidably arranged on the outside of the discharge port, and a telescopic sleeve is also fixedly arranged on the feeding frame. The other end of the telescopic sleeve is fixed to the sealing plate, and a third spring is provided on the telescopic sleeve.

[0024] The adjusting part includes a limiting frame fixedly arranged on the top of the feed box, and guide rods fixed to the first baffle plate are slidably arranged between the limiting frames, with a fourth spring on the guide rods.

[0025] Preferably, the discharge module includes a discharge trough opened at the bottom of the dust collector, a second baffle plate slidably embedded in the discharge trough, a collection frame fixedly arranged on the collection box, a positioning frame symmetrically fixedly arranged on the outside of the discharge trough, a second gear rotatably arranged at the end of the positioning frame, supports symmetrically fixedly arranged on the outside of the second baffle plate, two sets of supports rotatably arranged on the positioning shaft, and a second rack meshing with the second gear symmetrically fixedly arranged at both ends of the positioning shaft;

[0026] The material collection frame is fixedly installed with a mounting frame, and a third rack for meshing with the other end of the second gear is fixedly installed on both sides of the mounting frame.

[0027] The beneficial effects of this invention are:

[0028] (1) The present invention first conveys PET bottle-grade polyester chips in the storage box to the dust removal cylinder through the feeding module, and then removes dust from the PET bottle-grade polyester chips in the dust removal cylinder through the dust removal module. Finally, the dust removal PET bottle-grade polyester chips are discharged to the collection box through the discharge module. During the dust removal process, the present invention stirs the PET bottle-grade polyester chips conveyed to the dust removal cylinder through the stirring mechanism. During the stirring process, the dust attached to the surface of the PET bottle-grade polyester chips is removed. The removed dust passes through the dust discharge hole and is discharged to the outside of the dust removal cylinder. Then, the dust is adsorbed by the dust suction mechanism. The adsorbed dust is transported to the outside of the dust removal box for unified treatment. Compared with the existing sieve plate vibration dust removal, the present invention can effectively adsorb the tiny dust attached to the surface of PET bottle-grade polyester chips, and the dust removal effect is better.

[0029] (2) In this invention, after the PET bottle-grade polyester chips are fed into the dust removal cylinder, the stirring cylinder is driven to rotate by the rotating part. During the rotation of the stirring cylinder, the turning plate is driven to rotate synchronously. The turning plate can cause the PET bottle-grade polyester chips to turn inside the dust removal cylinder, thereby causing the dust attached to its surface to fall off. At the same time, this invention sets an elastic module connected to the turning plate to avoid the turning plate causing the PET bottle-grade polyester chips to be squeezed and broken, which has a good buffering effect. Attached Figure Description

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the structure of a dust removal device for PET bottle-grade polyester chips according to the present invention;

[0032] Figure 2 This is a schematic diagram of the internal structure of a dust removal device for PET bottle-grade polyester chips according to the present invention. Figure 1 ;

[0033] Figure 3 This is a schematic diagram of the internal structure of a dust removal device for PET bottle-grade polyester chips according to the present invention. Figure 2 ;

[0034] Figure 4 This is a schematic diagram of the dust collector cylinder in a dust removal device for PET bottle-grade polyester chips according to the present invention;

[0035] Figure 5 This is a schematic diagram of the cross-sectional structure of the dust removal cylinder in a dust removal device for PET bottle-grade polyester chips according to the present invention;

[0036] Figure 6 This is a schematic diagram of the cylinder structure in a dust removal device for PET bottle-grade polyester chips according to the present invention;

[0037] Figure 7This is a schematic diagram of the structure of the turning plate in a dust removal device for PET bottle-grade polyester chips according to the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the storage box in a dust removal device for PET bottle-grade polyester chips according to the present invention;

[0039] Figure 9 This is a schematic diagram of the internal structure of the cylinder in a dust removal device for PET bottle-grade polyester chips according to the present invention.

[0040] In the diagram: 1. Dust collector; 2. Storage bin; 3. Collection bin; 4. Dust collector cylinder; 5. Cylinder; 6. Drive motor; 7. Annular pipe; 8. Guide rod; 201. Feeding frame; 202. Discharge port; 203. Sealing plate; 204. Telescopic sleeve; 205. Third spring; 301. Collection frame; 302. Mounting bracket; 303. Top rod; 304. Third rack; 305. Positioning bracket; 306. Second gear; 307. Second rack; 401. Dust discharge hole; 402. Mixing cylinder; 403. Air jet hole; 404. Tilting plate; 405. Limiting rod; 406. First spring; 407. Feeding bin; 40 8. Feed inlet; 409. Limiting frame; 410. Feed chute; 411. First baffle plate; 501. First rack; 601. Screw; 602. Nut; 603. Support shaft; 701. Negative pressure plate; 702. Negative pressure pipe; 703. Dust suction plate; 704. Dust suction chute; 705. First gear; 706. Cam; 707. Push plate; 708. Cylinder body; 709. Second spring; 710. Air supply pipe; 711. Air inlet pipe; 712. Push rod; 713. Piston; 801. Fourth spring; 802. Discharge chute; 803. Second baffle plate; 804. Support; 805. Positioning shaft; 806. Torsion spring. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Please see Figure 1 As shown, the present invention is a dust removal device for PET bottle-grade polyester chips, including a dust removal box 1, and a storage box 2 for storing PET bottle-grade polyester chips on the dust removal box 1; specifically, in this embodiment, the PET bottle-grade polyester chips to be dusted are uniformly placed in the dust removal box 1 for temporary storage, so as to facilitate the transport of the chips to the dust removal box 1 for dust removal.

[0044] The bottom of the dust collection box 1 is equipped with a collection box 3 for storing PET bottle-grade polyester chips after dust removal; specifically, after the PET bottle-grade polyester chips are dusted, they are uniformly discharged into the collection box 3 for collection, so as to facilitate subsequent processing.

[0045] Please see Figure 1 and Figure 2 A dust collector 4 is arranged in a rotating manner in the dust collector box 1. The axis of the dust collector 4 is set horizontally. Several sets of dust discharge holes 401 are evenly opened on the wall of the dust collector 4. In this embodiment, the diameter of the dust discharge hole 401 is smaller than the size of the PET bottle-grade polyester chips. This embodiment does not limit this, as long as the PET bottle-grade polyester chips cannot leak out from the dust discharge hole 401.

[0046] It also includes a feeding module, a dust removal module and a discharge module. The feeding module is used to transport PET bottle-grade polyester chips in the storage bin 2 to the dust removal cylinder 4.

[0047] The dust removal module is used to remove dust from the PET bottle-grade polyester chips in the dust removal cylinder 4;

[0048] The discharge module is used to discharge the dust-removed PET bottle-grade polyester chips into the collection box 3;

[0049] The dust removal module includes a stirring mechanism arranged in the dust removal cylinder 4 for stirring the PET bottle-grade polyester chips to be dusted, and a dust suction mechanism for adsorbing dust on the surface of the PET bottle-grade polyester chips.

[0050] It can be explained that in this embodiment, the PET bottle-grade polyester chips in the storage bin 2 are first conveyed to the dust collection cylinder 4 through the feeding module. Then, the dust collection module removes dust from the PET bottle-grade polyester chips in the dust collection cylinder 4. Finally, the dust-removed PET bottle-grade polyester chips are discharged to the collection box 3 through the discharge module. During the dust removal process, the PET bottle-grade polyester chips conveyed to the dust collection cylinder 4 are stirred by the stirring mechanism. During the stirring process, the dust attached to the surface of the PET bottle-grade polyester chips is removed. The removed dust passes through the dust discharge hole 401 and is discharged to the outside of the dust collection cylinder 4. Then, the dust is adsorbed by the dust suction mechanism. The adsorbed dust is transported to the outside of the dust collection box 1 for unified treatment. Compared with the existing sieve plate vibration dust removal, this embodiment can effectively and completely adsorb the tiny dust particles attached to the surface of the PET bottle-grade polyester chips, resulting in a better dust removal effect.

[0051] Example 2

[0052] Based on Example 1, please refer to Figure 5 and Figure 7The stirring mechanism includes a stirring cylinder 402 rotatably arranged in the dust collector 4. The stirring cylinder 402 and the dust collector 4 are coaxially arranged. Several sets of turning plates 404 are arranged in a circumferential array in the dust collector 4. One end of the turning plate 404 slides against the inner wall of the dust collector 4, and the other end is connected to the stirring cylinder 402 through an elastic module. The stirring mechanism also includes a rotating part for driving the stirring cylinder 402 to rotate. Specifically, in this embodiment, three sets of turning plates 404 are arranged in a circumferential array. It can be explained that after the PET bottle-grade polyester chips are fed into the dust collector 4, the rotating part drives the stirring cylinder 402 to rotate. During the rotation of the stirring cylinder 402, the turning plates 404 are driven to rotate simultaneously. The turning plates 404 can cause the PET bottle-grade polyester chips to tumble in the dust collector 4, thereby causing the dust attached to their surface to fall off. At the same time, in this embodiment, by setting the elastic module to connect with the turning plate 404, the PET bottle-grade polyester chips are prevented from being squeezed and broken by the turning plate 404, which has a good buffering effect.

[0053] In this embodiment, the elastic module includes a limiting rod 405 fixedly arranged on the outer wall of the mixing drum 402, and the other end of the limiting rod 405 is slidably inserted into the through groove opened in the turning plate 404. The limiting rod 405 is provided with a first spring 406. Specifically, one end of the first spring 406 is fixed to the turning plate 404, and the other end is fixed to the wall of the mixing drum 402. It can be explained that during the rotation of the turning plate 404, the gap between its end and the wall of the dust removal cylinder 4 can be adjusted by sliding on the limiting rod 405. The first spring 406 provides buffering to reduce the force of the turning plate 404 on the PET bottle-grade polyester chips and avoid damage to the PET bottle-grade polyester chips.

[0054] It should also be noted that, please refer to Figures 2-4 The rotating part includes a first gear 705 symmetrically arranged on the outside of the dust collector 4. The stirring cylinder 402 extends to both sides and is fixed to the first gear 705. Two sets of first racks 501 are symmetrically arranged in the dust collector 1 for meshing with the first gear 705. The first racks 501 on both sides are fixed to the driving end of the cylinder 5 fixed on the outside of the dust collector 1. It can be explained that in this embodiment, the cylinder 5 is started to drive the first racks 501 on both sides to reciprocate in the dust collector 1. During the movement, the stirring cylinder 402 is rotated by meshing with the first gear 705.

[0055] In addition, please see Figures 5-7 as well as Figure 9In this embodiment, to ensure that the dust falling off during the tumbling process of PET bottle-grade polyester chips can be quickly discharged through the dust discharge hole 401, the stirring cylinder 402 is designed as a hollow structure. Several rows of air jet holes 403 are circumferentially opened on the cylinder wall of the stirring cylinder 402. Cylinder bodies 708 are symmetrically fixed on both sides of the dust collection cylinder 4. A piston 713 is slidably arranged in the cylinder body 708. The piston 713 and the side wall of the cylinder body 708 enclose an air chamber. An air inlet pipe 711 is provided on the air chamber, extending to the outside of the dust collection box 1. A one-way valve, limiting air intake only, is provided between the air inlet pipe 711 and the air chamber. An air delivery pipe 71 is provided on the other side of the air chamber. 0. The other end of the gas supply pipe 710 is rotatably connected to the stirring drum 402. A one-way valve limited to exhaust is provided between the gas supply pipe 710 and the gas chamber. The piston 713 is connected to the pusher that drives it to reciprocate in the cylinder 708. It can be explained that during the tumbling process of PET bottle-grade polyester chips, the piston 713 is driven to reciprocate in the cylinder 708 by the pusher, so that the gas chamber draws in the outside air through the air inlet pipe 711 and then inputs it into the stirring drum 402 through the gas supply pipe 710. Finally, it is sprayed out into the dust collector 4 through the jet hole 403, and then the dust that falls off is blown to the outside of the dust collector 4 through the dust discharge hole 401.

[0056] It should be noted that the air inlet pipe 711 is provided with a certain length and is slidably connected to the top wall of the dust collector 1. Correspondingly, a filter device can be provided at the end of the air inlet pipe 711 to filter the air and prevent dust from being transported into the dust collector 4. This part is existing technology and will not be described in detail in this embodiment.

[0057] Please see Figure 6 The pushing part includes a cam 706 fixedly arranged on one side of the first gear 705. The piston 713 is fixed to the push rod 712. The other end of the push rod 712 extends to the outside of the cylinder 708 and is fixed to the push plate 707. The cam 706 slides against the push plate 707. A second spring 709 is provided on the push rod 712. Specifically, one end of the second spring 709 is fixed to the push plate 707 and the other end is fixed to the cylinder 708. It can be explained that when the stirring drum 402 rotates, it synchronously drives the cam 706 to rotate. The cam 706 pushes the piston 713 to slide in the cylinder 708 by abutting against the push plate 707. As the cam 706 continues to rotate, the second spring 709 can drive the push plate 707 and the piston 713 to reset, thereby achieving the effect of reciprocating motion.

[0058] Please see Figure 2The dust removal module also includes dust collection plates 703 arranged in a circumferential array around the dust collection cylinder 4. The dust collection plates 703 have dust collection grooves 704 facing the dust collection cylinder 4. Each dust collection plate 703 is connected to an annular pipe 7 through a pipe. The annular pipe 7 is connected to a negative pressure pipe 702 through a negative pressure plate 701. The negative pressure pipe 702 is connected to the external dust collection equipment. Specifically, the dust collection plates 703, the annular pipe 7, and the negative pressure plate 701 are all set as cavity structures. During dust removal, the dust collection equipment can generate negative pressure to adsorb and collect the dust discharged from the dust collection cylinder 4.

[0059] Please see Figure 3 In this embodiment, a screw 601 is rotatably arranged in the dust collector 1. The screw 601 is fixed to the output end of the drive motor 6, which is fixedly arranged on the outside of the dust collector 1. A nut 602 is screwed on the screw 601. The nut 602 is fixed to the dust collector 4 through two sets of support shafts 603. It can be explained that when it is necessary to add PET bottle-grade polyester chips to the dust collector 4, the drive motor 6 is started to drive the screw 601 to rotate. The nut 602 drives the dust collector 4 to receive the material in the storage box 2 through the support shafts 603. Then, the PET bottle-grade polyester chips in the storage box 2 can be transported to the dust collector 4 through the feeding module.

[0060] Correspondingly, when the PET bottle-grade polyester chips after dust removal need to be discharged from the dust removal cylinder 4, the drive motor 6 rotates in the reverse direction, driving the dust removal cylinder 4 to move towards the bottom and receive it with the collection box 3, so that the PET bottle-grade polyester chips can be discharged into the collection box 3; when the dust removal cylinder 4 is not in the feeding or discharging state, the nut 602 drives the dust removal cylinder 4 to the middle position, and it does not receive either the storage box 2 or the collection box 3.

[0061] In addition, when driving the dust collector 4 to rise and fall, it is necessary to adjust the first rack 501 to separate from the first gear 705 in order to avoid motion interference.

[0062] As a further solution in this embodiment, please refer to Figure 5 , Figure 7 and Figure 8The feeding module includes a feeding trough 410 formed on the dust collector 4, with a first baffle plate 411 slidably embedded in the feeding trough 410. The end of the feeding trough 410 facing the storage tank 2 receives the feeding tank 407. The feeding tank 407 has symmetrically arranged feeding ports 408 on both sides. The bottom of the storage tank 2 has a feeding frame 201 for embedding into the feeding tank 407. The feeding frame 201 has symmetrically arranged discharge ports 202 on both sides for receiving the feeding ports 408. The feeding module also includes an adjustment unit for driving the first baffle plate 411 to slide within the feeding trough 410. Yes, when PET bottle-grade polyester chips are fed into the dust collector 4, the dust collector 4 is first driven to move towards the storage tank 2 so that the feed box 407 is embedded in the feed frame 201 and the feed port 408 and the discharge port 202 are received. Then, the first baffle plate 411 is pushed into the dust collector 4 by the adjustment part. A feeding gap is formed between the first baffle plate 411 and the feed trough 410. The feed frame 201 in the storage tank 2 can be discharged into the dust collector 4 through the discharge port 202 and the feed port 408. Correspondingly, after the feeding is completed, the dust collector 4 is driven to reset and the first baffle plate 411 is reset at the same time.

[0063] It should be noted that when the feed box 407 is embedded in the feed frame 201, the side wall of the feed box 407 and the side wall of the feed frame 201 remain in a sliding fit to prevent PET bottle-grade polyester chips from leaking out through the gap between them.

[0064] In addition, the top of the first baffle plate 411 is set with an arc-shaped structure to avoid material accumulation on its surface.

[0065] In this embodiment, a sealing plate 203 is slidably arranged on the outside of the discharge port 202, and a telescopic sleeve 204 is fixedly arranged on the feeding frame 201. The other end of the telescopic sleeve 204 is fixed to the sealing plate 203, and a third spring 205 is provided on the telescopic sleeve 204. The adjusting part includes a limiting frame 409 fixedly arranged on the top of the feeding box 407. A guide rod 8 fixed to the first baffle plate 411 is slidably arranged between the limiting frames 409, and a fourth spring 801 is provided on the guide rod 8. Specifically, one end of the fourth spring 801 is connected to the limiting frame 409. 9 is fixed, and the other end is fixed to the end of the guide rod 8; it can be explained that during the process of the dust collector 4 rising, the guide rod 8 can push the first baffle plate 411 into the dust collector 4 under the action of the feeding frame 201. The fourth spring 801 can drive it to reset, realizing the effect of automatic feeding. Correspondingly, the feeding box 407 can simultaneously push the sealing plate 203 to shift to one side, and the discharge port 202 and the feeding port 408 are received. At this time, the third spring 205 contracts to generate elastic force to drive the sealing plate 203 to reset.

[0066] Please see Figure 5 , Figure 7 and Figure 8The discharge module includes a discharge trough 802 located at the bottom of the dust collector 4, a second baffle plate 803 slidably embedded in the discharge trough 802, a collection frame 301 fixedly mounted on the collection box 3, a positioning frame 305 symmetrically fixedly mounted on the outer side of the discharge trough 802, a second gear 306 rotatably mounted at the end of the positioning frame 305, supports 804 symmetrically fixedly mounted on the outer side of the second baffle plate 803, two sets of supports 804 rotatably mounted on the positioning shaft 805, and second racks 307 meshing with the second gear 306 symmetrically fixedly mounted at both ends of the positioning shaft 805. The collection frame 301 is fixedly equipped with... The frame 302 has a third rack 304 fixedly arranged on both sides for meshing with the other end of the second gear 306. It can be explained that after the PET bottle-grade polyester chips are dusted, the dust collection cylinder 4 moves towards the collection box 3. The second gear 306 first meshes with the third rack 304 and rotates. During the rotation, it meshes with the second rack 307 and drives the second baffle plate 803 to move towards the bottom and form a discharge gap with the discharge chute 802. The PET bottle-grade polyester chips in the dust collection cylinder 4 can be discharged into the collection box 3 along the discharge chute 802 and the collection frame 301.

[0067] It should be noted that when the first rack 501 separates from the first gear 705, one set of tilting plates 404 is in a vertical state and this set of tilting plates 404 is connected to the discharge chute 802. It can be understood that when the tilting plate 404 is in this state, some PET bottle-grade polyester chips will not be blocked by the tilting plate 404 in the dust collector 4 during discharge.

[0068] Furthermore, since the inner side of the second baffle plate 803 has an arc-shaped structure, in order to prevent some PET bottle-grade polyester chips from remaining on its surface, in this embodiment, torsion springs 806 are also provided on both sides of the positioning shaft 805. One end of the torsion spring 806 is fixed to the positioning shaft 805, and the other end is fixed to the support 804. In addition, top rods 303 are symmetrically fixed on the mounting frame 302. It can be noted that the top rods 303 are located on the side away from the positioning shaft 805. As the dust collector 4 moves down, when the second baffle plate 803 separates from the discharge chute 802, the top rods 303 can push the second baffle plate 803 to flip to one side, so that the PET bottle-grade polyester chips can fall completely into the collection box 3.

[0069] A dust removal device for PET bottle-grade polyester chips, the dust removal method includes the following steps:

[0070] The PET bottle-grade polyester chips to be dusted are placed in dust removal box 1 for temporary storage.

[0071] Start the drive motor 6 to drive the screw 601 to rotate, and the nut 602 drives the dust collector 4 to move toward the storage box 2 through the support shaft 603, so that the material is discharged into the dust collector 4.

[0072] The drive motor 6 drives the dust collector 4 to reset, and the start cylinder 5 drives the first racks 501 on both sides to reciprocate in the dust collector 1. During the movement, the stirring drum 402 is rotated by meshing with the first gear 705.

[0073] The stirring drum 402 synchronously drives the turning plate 404 to rotate. The turning plate 404 can cause the PET bottle-grade polyester chips to turn over in the dust removal drum 4, so that the dust attached to their surface can be removed.

[0074] The pusher drives the piston 713 to reciprocate in the cylinder 708, so that the air chamber draws in the outside air through the air inlet pipe 711 and then inputs it into the mixing drum 402 through the air delivery pipe 710. Finally, it is sprayed out into the dust collector 4 through the jet hole 403, and the dust that falls off is blown to the outside of the dust collector 4 through the dust discharge hole 401.

[0075] The dust discharged from the dust collection cylinder 4 is adsorbed and collected by generating negative pressure through the dust collection equipment.

[0076] The drive motor 6 rotates in the opposite direction, driving the dust collector 4 to move towards the bottom and receive it in the collection box 3, so as to discharge the dust-removed material into the collection box 3.

[0077] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0078] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0079] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A dust removal device for PET bottle-grade polyester chips, comprising a dust removal box (1), characterized in that, The dust removal box (1) is provided with a storage box (2) for storing PET bottle-grade polyester chips; the bottom of the dust removal box (1) is provided with a collection box (3) for storing PET bottle-grade polyester chips after dust removal; a dust removal cylinder (4) is arranged in rotation in the dust removal box (1), and several sets of dust discharge holes (401) are evenly opened on the cylinder wall of the dust removal cylinder (4). It also includes a feeding module, a dust removal module and a discharging module. The feeding module is used to transport PET bottle-grade polyester chips in the storage box (2) to the dust removal cylinder (4); the dust removal module is used to remove dust from the PET bottle-grade polyester chips in the dust removal cylinder (4); and the discharging module is used to discharge the dust-removed PET bottle-grade polyester chips into the collection box (3). The dust removal module includes a stirring mechanism arranged in the dust removal cylinder (4) for stirring the PET bottle-grade polyester chips to be dusted, and a dust suction mechanism for adsorbing dust on the surface of the PET bottle-grade polyester chips; a screw (601) is also rotatably arranged in the dust removal box (1), the screw (601) is fixed to the output end of the drive motor (6) fixed on the outside of the dust removal box (1), and a nut (602) is spirally sleeved on the screw (601), and the nut (602) is fixed to the dust removal cylinder (4) through two sets of support shafts (603); The feeding module includes a feeding trough (410) on the dust collector (4), a first baffle plate (411) is slidably embedded in the feeding trough (410), one end of the feeding trough (410) facing the storage tank (2) is connected to the feeding tank (407), the feeding tank (407) has symmetrically opened feeding ports (408) on both sides, the bottom of the storage tank (2) is provided with a feeding frame (201) for embedding the feeding tank (407), the feeding frame (201) has symmetrically opened discharging ports (202) on both sides for receiving the feeding ports (408); the feeding module also includes an adjustment part, the adjustment part is used to drive the first baffle plate (411) to receive the first baffle plate (407) to receive the first baffle plate (408) to receive the first baffle plate (407 ... A baffle plate (411) slides in the feed trough (410); a sealing plate (203) is slidably arranged on the outside of the discharge port (202); a telescopic sleeve (204) is also fixedly arranged on the feed frame (201); the other end of the telescopic sleeve (204) is fixed to the sealing plate (203); a third spring (205) is provided on the telescopic sleeve (204); the adjustment part includes a limiting frame (409) fixedly arranged on the top of the feed box (407); a guide rod (8) fixed to the first baffle plate (411) is slidably arranged between the limiting frames (409); a fourth spring (801) is provided on the guide rod (8).

2. The dust removal device for PET bottle-grade polyester chips according to claim 1, characterized in that, The stirring mechanism includes a stirring cylinder (402) that is rotatably arranged in the dust collector (4), and the stirring cylinder (402) and the dust collector (4) are arranged coaxially. The dust collector (4) is provided with several sets of turning plates (404) arranged in a circumferential array. One end of the turning plate (404) slides against the inner wall of the dust collector (4), and the other end is connected to the stirring cylinder (402) through an elastic module. The stirring mechanism also includes a rotating part, which is used to drive the stirring cylinder (402) to rotate.

3. The dust removal device for PET bottle-grade polyester chips according to claim 2, characterized in that, The rotating part includes a first gear (705) symmetrically arranged on the outside of the dust collector (4), and the stirring cylinder (402) extends to both sides and is fixed to the first gear (705); The dust collector (1) contains two sets of first racks (501) arranged symmetrically for meshing with the first gear (705). The first racks (501) on both sides are fixed to the drive end of the cylinder (5) fixedly arranged on the outside of the dust collector (1).

4. The dust removal device for PET bottle-grade polyester chips according to claim 3, characterized in that, The stirring cylinder (402) is a hollow structure, and several rows of air jet holes (403) are circumferentially opened on the cylinder wall of the stirring cylinder (402). The dust collector (4) has cylinders (708) fixedly arranged symmetrically on both sides. A piston (713) is slidably arranged in the cylinder (708). The piston (713) and the side wall of the cylinder (708) form an air chamber. An air inlet pipe (711) is provided on the air chamber. The air inlet pipe (711) extends to the outside of the dust collector (1). An air delivery pipe (710) is provided on the other side of the air chamber. The other end of the air delivery pipe (710) is rotatably connected to the stirring cylinder (402). The piston (713) is connected to the pusher that drives it to reciprocate in the cylinder (708).

5. A dust removal device for PET bottle-grade polyester chips according to claim 4, characterized in that, The pushing part includes a cam (706) fixedly arranged on one side of the first gear (705); The piston (713) is fixed to the push rod (712), the other end of the push rod (712) extends to the outside of the cylinder (708) and is fixed to the push plate (707), the cam (706) slides against the push plate (707), and a second spring (709) is provided on the push rod (712).

6. The dust removal device for PET bottle-grade polyester chips according to claim 1, characterized in that, The dust removal module also includes dust collection plates (703) arranged in a circumferential array around the dust collection cylinder (4). The dust collection plates (703) have dust collection grooves (704) facing the dust collection cylinder (4). Each dust collection plate (703) is connected to the annular pipe (7) through a pipe. The annular pipe (7) is connected to the negative pressure pipe (702) through the negative pressure plate (701). The negative pressure pipe (702) is connected to the external dust collection equipment.

7. A dust removal device for PET bottle-grade polyester chips according to claim 1, characterized in that, The discharge module includes a discharge trough (802) at the bottom of the dust collector (4), a second baffle plate (803) is slidably embedded in the discharge trough (802), a collection frame (301) is fixedly arranged on the collection box (3), a positioning frame (305) is symmetrically fixedly arranged on the outside of the discharge trough (802), a second gear (306) is rotatably arranged at the end of the positioning frame (305), a support (804) is symmetrically fixedly arranged on the outside of the second baffle plate (803), two sets of supports (804) are rotatably arranged on the positioning shaft (805), and a second rack (307) that meshes with the second gear (306) is symmetrically fixedly arranged at both ends of the positioning shaft (805). The material collection frame (301) is fixedly equipped with a mounting frame (302), and the mounting frame (302) is fixedly equipped with a third rack (304) on both sides for meshing with the other end of the second gear (306).

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