Negative pressure impurity removal device for plastic bottle pieces

Abstract

The utility model relates to the technical field of feeding devices, and discloses a negative pressure impurity removal device for plastic bottle pieces, which comprises an outer barrel, a motor is mounted on the outer barrel, a negative pressure barrel is mounted at the axis position of the outer barrel, a negative pressure cavity is fixedly formed in the negative pressure barrel, a negative pressure opening communicated with the negative pressure cavity is fixedly formed in the negative pressure barrel, and a negative pressure cavity is formed in the negative pressure cavity. An inner rotating cylinder is rotatably connected to the peripheral side surface of the negative pressure cylinder, an outer rotating cylinder is rotatably connected to the peripheral side surface of the inner rotating cylinder, the outer rotating cylinder and the inner rotating cylinder are driven by a motor, a plurality of groups of inner filtering holes are uniformly distributed in the inner rotating cylinder, and a spiral conveying sheet rotatably attached to the outer rotating cylinder is fixedly mounted on the inner rotating cylinder. When the device works, the negative pressure acting area can be effectively controlled, then negative pressure material suction and normal pressure material discharge are achieved in a circulating mode, and good plastic bottle pieces and fine impurities can be screened when the device works.

Description

TECHNICAL FIELD

[0001] The utility model relates to a material loading device technical field more specifically, the utility model relates to a kind of negative pressure impurity removal device for plastic bottle piece. BACKGROUND

[0002] When the piece material of regenerative plastic bottle is loaded, generally using negative pressure material loading machine, however, due to the light quality of piece material, small volume, easy to be adsorbed and jammed in the surface of filter unit of loading box, leading to the gas in the box not easy to be discharged to outside from the exhaust hole of filter unit, leading to the deterioration of negative pressure effect, influence negative pressure loading effect and efficiency.

[0003] In the prior art, the patent document with publication number CN219155859U discloses a regenerative plastic bottle piece negative pressure material loading machine, including raw material box and loading box, the bottom of the raw material box is provided with a conveying pipe, and the other end of the conveying pipe is connected to the loading box, the top of the loading box is provided with an exhaust fan, which can shake the regenerative plastic piece material adsorbed on its surface, thereby avoiding the piece material adsorption and jamming in the filter screen, ensuring good exhaust of negative pressure loading, thereby ensuring stable negative pressure loading effect and efficiency, but the above device has the following technical problems when working:

[0004] 1. cannot effectively control the action area of negative pressure, and then realize negative pressure suction and normal pressure discharge in circulation;

[0005] 2. not convenient to realize screening of good plastic bottle piece and fine impurities;

[0006] 3. not convenient to realize online reverse cleaning and self-cleaning of impurity removal structure and plastic bottle piece filtering structure, thereby maintaining high filtration performance of impurity removal structure and plastic bottle piece filtering structure;

[0007] Therefore, the utility model provides a kind of negative pressure impurity removal device for plastic bottle piece to solve the technical problems in the above background art. UTILITY MODEL CONTENTS

[0008] In order to overcome the deficiencies of the prior art, the utility model provides a kind of negative pressure impurity removal device for plastic bottle piece, the utility model can effectively control the action area of negative pressure when working, and then realize negative pressure suction and normal pressure discharge in circulation, and the device can realize screening of good plastic bottle piece and fine impurities when working.

[0009] To achieve the above object, the utility model provides the following technical scheme: A kind of negative pressure impurity removal device for plastic bottle piece, including outer cylinder, motor is installed on the outer cylinder, the axis position of the outer cylinder is installed with negative pressure cylinder, negative pressure cavity is fixed in the inside of the negative pressure cylinder, negative pressure port is fixed and is communicated with the negative pressure cavity on the negative pressure cylinder, rotatingly connected with inner rotating cylinder on the peripheral surface of the negative pressure cylinder, the peripheral surface of the inner rotating cylinder is rotatingly connected with outer rotating cylinder, the outer rotating cylinder and inner rotating cylinder are all driven by motor, the inner rotating cylinder is uniformly distributed with multiple inner filter holes, the outer rotating cylinder is uniformly distributed with multiple outer filter holes, the outer rotating cylinder is installed with a group of baffle that is circumferentially arrayed and is attached to the outer cylinder, the side surface of the outer cylinder is installed with feeding box, the positive bottom of the outer cylinder is respectively communicated with discharge box and the impurity removal box that is connected to the screw conveying piece, the inner lower part of the negative pressure cylinder is installed with the back cleaning assembly that is back-flushed and self-cleaning in the outer filter hole and inner filter hole.

[0010] As a preferred technical scheme of the utility model, the side surface of the negative pressure cylinder is fixedly installed with negative pressure connector communicated with the negative pressure cavity, the negative pressure connector can be communicated with external negative pressure pump, and the side surface of the feeding box and the bottom surface of the discharge box are both provided with flange connecting pipe.

[0011] As a preferred technical scheme of the utility model, the opening end of the negative pressure port is opposite to the feeding box.

[0012] As a preferred technical scheme of the utility model, the axis of the inner filter hole and the outer filter hole is perpendicular to the axis of the inner rotating cylinder, and the aperture of the outer filter hole is 2-4 times of the aperture of the inner filter hole.

[0013] As a preferred technical scheme of the utility model, the back cleaning assembly includes back cleaning pump fixed to the surface of the outer cylinder and back cleaning cavity opened in the lower part of the negative pressure cylinder, the gas outlet port of the back cleaning pump is fixedly communicated with the back cleaning cavity through pipeline, and the bottom of the negative pressure cylinder is provided with a plurality of back cleaning injection holes with vertical downward air outlet direction and communicated with the back cleaning cavity.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] 1、The utility model can effectively control the action area of negative pressure, and then realize negative pressure suction and normal pressure discharge in circulation, and the device can realize screening of good plastic bottle piece and small impurities when working.

[0016] 2, the utility model discloses when working, under the action of external negative pressure pump, sufficient negative pressure is produced in negative pressure chamber, then negative pressure suction is carried out to external plastic bottle piece, when negative pressure suction is carried out, motor is with the set power output speed, after the motor output speed, the differential rotation of inner rotary cylinder and outer rotary cylinder is carried out, and after the rotation of inner rotary cylinder, the conveying direction of spiral conveying piece is towards the eduction box, under the action of negative pressure, the plastic bottle piece of waiting to be loaded enters the inside of outer cylinder, and the outer filter hole is used to intercept the plastic bottle piece with good product specification, through the setting of baffle, so that the outer cylinder can carry out airtight isolation to negative pressure when rotating to the position of non-negative pressure port, then the plastic bottle piece can lose the effect of negative pressure when moving to the position of non-communication with negative pressure port, after the good plastic bottle piece loses the effect of negative pressure, the good plastic bottle piece then is discharged through the discharge box under the action of normal pressure and gravity, and the inner filter hole is used to carry out negative pressure suction filtration to small particle waste in the plastic bottle piece, and the intercepted small particle waste is discharged through the eduction box under the action of spiral conveying piece.

[0017] 3, the utility model discloses when loading, the reverse cleaning pump is periodically worked, in the working period of reverse cleaning pump, then the reverse cleaning principle is used to realize the reverse flushing self-cleaning of reverse cleaning nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model for plastic bottle piece's negative pressure eduction device;

[0019] Figure 2 It is the structure schematic diagram of the utility model Figure 1 ;

[0020] Figure 3 It is the structure schematic diagram of the utility model Figure 2 in A place;

[0021] Figure 4 It is the structure schematic diagram of the utility model Figure 1 ;

[0022] Figure 5 It is the structure schematic diagram of outer rotary cylinder and baffle of the utility model;

[0023] Figure 6 It is the structure schematic diagram of outer rotary cylinder and inner filter hole of the utility model.

[0024] In the drawing: 1, outer cylinder;2, motor;3, negative pressure cylinder;4, negative pressure port;5, inner rotary cylinder;6, outer rotary cylinder;7, inner filter hole;8, spiral conveying piece;9, outer filter hole;10, baffle;11, loading box;12, discharge box;13, eduction box;14, negative pressure connector;15, reverse cleaning pump;16, reverse cleaning chamber;17, reverse cleaning nozzle. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] As shown in Figures 1 to 6 The utility model provides a kind of negative pressure impurity removal device for plastic bottle piece, including outer cylinder 1, motor 2 is installed on outer cylinder 1, the axis position of outer cylinder 1 is installed with negative pressure cylinder 3, negative pressure cavity is fixed in the inside of negative pressure cylinder 3;

[0027] The side surface of negative pressure cylinder 3 is fixedly installed with the negative pressure connector 14 being communicated with negative pressure cavity, and the negative pressure connector 14 can be communicated with external negative pressure pump;

[0028] When working, sufficient negative pressure is generated in the negative pressure cavity under the action of external negative pressure pump, and then negative pressure suction is carried out on external plastic bottle piece;

[0029] Negative pressure port 4 is fixedly provided on negative pressure cylinder 3 and communicated with negative pressure cavity, inner rotating cylinder 5 is rotatably connected to the peripheral side surface of negative pressure cylinder 3, outer rotating cylinder 6 is rotatably connected to the peripheral side surface of inner rotating cylinder 5, and outer rotating cylinder 6 and inner rotating cylinder 5 are driven by motor 2;

[0030] When working, the rotating speed of outer rotating cylinder 6 is different from the rotating speed of inner rotating cylinder 5;

[0031] A plurality of inner filter holes 7 are uniformly distributed on inner rotating cylinder 5, and helical conveying sheet 8 is fixedly installed on inner rotating cylinder 5 and rotatably attached to outer rotating cylinder 6, and a plurality of outer filter holes 9 are uniformly distributed on outer rotating cylinder 6;

[0032] The axis of inner filter hole 7 and outer filter hole 9 is perpendicular to the axis of inner rotating cylinder 5, and the aperture of outer filter hole 9 is 3 times the aperture of inner filter hole 7;

[0033] Inner filter hole 7 is used for negative pressure suction and filtration of small particle waste in plastic bottle piece;

[0034] Outer filter hole 9 is used for intercepting plastic bottle piece with good product specification;

[0035] A group of baffle plates 10 are installed on the outer periphery of outer rotating cylinder 6 and circumferentially arrayed and attached to outer cylinder 1;

[0036] Through the setting of baffle plate 10, outer cylinder 1 can be airtight isolated from negative pressure when rotating to the position other than negative pressure port 4, so that plastic bottle piece can lose negative pressure effect when moving to the position other than being communicated with negative pressure port 4;

[0037] The side of the outer cylinder 1 is provided with a feeding box 11, and the front bottom of the outer cylinder 1 is respectively communicated with a discharging box 12 and a dedusting box 13 for supporting the spiral conveying piece 8;

[0038] The opening end of the negative pressure port 4 is opposite to the feeding box 11;

[0039] The side of the feeding box 11 and the bottom of the discharging box 12 are provided with flange connecting pipes;

[0040] In use, the feeding box 11 is communicated with an external feeding pipeline through the flange connecting pipes, and the external feeding pipeline is communicated with a storage device of the plastic bottle piece;

[0041] The inner lower part of the negative pressure cylinder 3 is provided with a back cleaning assembly for back flushing and self-cleaning of the outer filter hole 9 and the inner filter hole 7.

[0042] The back cleaning assembly comprises a back cleaning pump 15 fixed to the surface of the outer cylinder 1 and a back cleaning cavity 16 opened in the front lower part of the negative pressure cylinder 3, the air outlet port of the back cleaning pump 15 is fixedly communicated with the back cleaning cavity 16 through a pipeline, the bottom of the negative pressure cylinder 3 is provided with a plurality of back cleaning jet holes 17 with vertical downward air outlet directions and communicated with the back cleaning cavity 16, and the plurality of back cleaning jet holes 17 are arranged in a staggered manner with the negative pressure port 4;

[0043] During the feeding operation, the back cleaning pump 15 is periodically operated, and during the working period of the back cleaning pump 15, the back cleaning principle is used to realize the back flushing and self-cleaning of the back cleaning jet holes 17.

[0044] The working principle and use process of the utility model are as follows:

[0045] In use, the feeding box 11 is connected with the external feeding pipeline through the flange connection pipe, the external feeding pipeline is connected with the storage device of plastic bottle pieces, the negative pressure connector 14 is connected with the external negative pressure pump, and under the action of the external negative pressure pump, sufficient negative pressure is generated in the negative pressure cavity, and then the external plastic bottle pieces are negatively pressure suctioned. During the negative pressure suction operation, the motor 2 outputs the rotating speed at the set power, and after the motor 2 outputs the rotating speed, the inner rotating cylinder 5 and the outer rotating cylinder 6 rotate at different speeds, and after the inner rotating cylinder 5 rotates, the conveying direction of the spiral conveying piece 8 is towards the impurity removal box 13. Under the action of the negative pressure, the plastic bottle pieces to be fed enter the inside of the outer cylinder 1, the outer filter hole 9 is used for intercepting plastic bottle pieces with good specifications, and the outer cylinder 1 can be airtight isolated from the negative pressure when the outer cylinder 1 rotates to the position of the non-negative pressure port 4, so that the plastic bottle pieces lose the negative pressure effect when moving to the position not communicated with the negative pressure port 4. After the good plastic bottle pieces lose the negative pressure effect, the good plastic bottle pieces are discharged through the discharge box 12 under the action of the normal pressure and gravity, the inner filter hole 7 is used for negatively pressure suctioning and filtering small particle waste in the plastic bottle pieces, and the intercepted small particle waste is discharged through the impurity removal box 13 under the action of the spiral conveying piece 8. During the feeding operation, the back flushing pump 15 works periodically, and during the working period of the back flushing pump 15, the back flushing principle is used to realize the back flushing self-cleaning of the back flushing nozzle 17.

[0046] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A negative pressure impurity removal device for plastic bottle pieces, comprising an outer cylinder (1), a motor (2) is installed on the outer cylinder (1), characterized in that: The axis position of the outer cylinder (1) is provided with a negative pressure cylinder (3), the inside of the negative pressure cylinder (3) is fixedly provided with a negative pressure cavity, a negative pressure port (4) in communication with the negative pressure cavity is fixedly provided on the negative pressure cylinder (3), an inner rotating cylinder (5) is rotatably connected to the peripheral side surface of the negative pressure cylinder (3), an outer rotating cylinder (6) is rotatably connected to the peripheral side surface of the inner rotating cylinder (5), the outer rotating cylinder (6) and the inner rotating cylinder (5) are driven by a motor (2), a plurality of groups of inner filter holes (7) are uniformly distributed on the inner rotating cylinder (5), a spiral conveying piece (8) rotatably attached to the outer rotating cylinder (6) is fixedly installed on the inner rotating cylinder (5), a plurality of groups of outer filter holes (9) are uniformly distributed on the outer rotating cylinder (6), a group of baffle plates (10) in circumferential array distribution and attached to the outer cylinder (1) are installed on the outer periphery of the outer rotating cylinder (6), a feeding box (11) is installed on the side surface of the outer cylinder (1), a discharge box (12) and a dedusting box (13) supporting the spiral conveying piece (8) are respectively communicated with the bottom of the outer cylinder (1), and a back cleaning assembly for back flushing and self-cleaning of the outer filter holes (9) and the inner filter holes (7) is installed at the inner lower part of the negative pressure cylinder (3).

2. The negative pressure impurity removal device for plastic bottle flakes according to claim 1, characterized in that: A negative pressure connector (14) in communication with the negative pressure cavity is fixedly installed on the side surface of the negative pressure cylinder (3), the negative pressure connector (14) can be communicated with an external negative pressure pump, and the side surface of the feeding box (11) and the bottom surface of the discharge box (12) are respectively provided with a flange connecting pipe.

3. The negative pressure impurity removing device for plastic bottle flakes according to claim 1, characterized in that: The opening end of the negative pressure port (4) is opposite to the feeding box (11).

4. The negative pressure impurity removing device for plastic bottle flakes according to claim 1, characterized in that: The axes of the inner filter holes (7) and the outer filter holes (9) are perpendicular to the axis of the inner rotating cylinder (5), and the hole diameter of the outer filter holes (9) is 2-4 times of the hole diameter of the inner filter holes (7).

5. The negative pressure impurity removing device for plastic bottle flakes according to claim 1, characterized in that: The back cleaning assembly comprises a back cleaning pump (15) fixed to the surface of the outer cylinder (1) and a back cleaning cavity (16) provided at the lower part of the negative pressure cylinder (3), the gas outlet port of the back cleaning pump (15) is fixedly communicated with the back cleaning cavity (16) through a pipeline, and a plurality of back cleaning injection holes (17) with vertically downward air outlet directions and in communication with the back cleaning cavity (16) are provided at the bottom of the negative pressure cylinder (3).

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