Electrostatic dust collection equipment

Abstract

The utility model discloses electrostatic dust collection equipment which comprises a bottom frame, a closed dust collection box, a compression roller device, an ion generator, an ultrasonic generation device and a negative pressure collection device, wherein the compression roller device, the ion generator, the ultrasonic generation device and the negative pressure collection device work cooperatively. Feeding / discharging holes are formed in the front and back of the dust removal box to form a conveying channel, and a dust removal channel composed of dust removal rubber rollers and dust removal flower rollers is formed in the dust removal box; the pressing roller device innovatively adopts a floating adjusting mechanism, the two ends of a dust removal rubber roller and a flower roller are connected with a floating roller seat through side frames, the bottom of the floating roller seat is matched with a spring through a polish rod-sliding cylinder assembly to achieve vertical buffering, and the pressing roller device can adapt to the book thickness of 5-50 mm. According to the device, through the synergistic effect of floating rolling, ultrasonic activation and ion neutralization, the micron-sized dust removal efficiency reaches 99% or above, zero page damage is achieved, and the device is suitable for dust removal of high-precision printed matter.

Description

TECHNICAL FIELD

[0001] The utility model relates to book binding processing equipment technical field especially is related to a static dust removal equipment. BACKGROUND

[0002] In the book binding production field, the dust removal process is the core link of ensuring the quality of printed matter. The traditional dust removal technology mainly relies on the combination of mechanical brush sweeping and negative pressure adsorption, but in the face of the increasingly improved printing precision requirements (especially in the field of high-end artistic picture books, ancient book restoration, etc.), the existing equipment exposes technical bottlenecks: micron-level dust removal efficiency is insufficient, and the electrostatic adsorption effect caused by the contact between the mechanical brush and the paper intensifies the attachment of ultra-fine particles; mechanical brush hair easily causes book page damage, and according to statistics, the average book damage rate in the industry is 0.3%; the open dust removal system causes more than 30% of dust to escape, and the PM2.5 concentration in the working environment is long-term over-standard.

[0003] The traditional equipment relies on physical contact type dust removal, which has two defects: 1) new static electricity is generated by the friction between the brush hair and the book page (up to ±8kV), which intensifies dust adsorption; 2) the dust removal efficiency of the open negative pressure system is less than 60%.

[0004] And in the prior art, there is also a static dust removal machine for book dust removal, which neutralizes the static charge on the surface of the book by non-contact ionization, completely solves the static problem, and the ion cloud generated by the static emission rod reduces the surface potential of the book, thereby reducing the adhesion of the dust on its surface by 94%, and cooperating with the precisely designed laminar negative pressure field, realizes zero contact and zero secondary pollution dust removal.

[0005] However, the dust removal effect of the existing static dust removal machine is still insufficient, because only the negative pressure device is used to adsorb dust, and a small amount of dust remains on the surface of the book, so it is necessary to improve. UTILITY MODEL CONTENTS

[0006] In view of the defects in the prior art, the utility model aims to provide a static dust removal equipment, which is characterized by: an ultrasonic generator is arranged on the frame, and the ultrasonic generator is connected with the pressure roller group; the ultrasonic generator is used for ultrasonic treatment of the pressure roller group; the book passes through the pressure roller group and is vibrated, so that the dust on the surface of the book is activated, the efficiency of negative pressure collection is improved, and the dust removal effect is improved.

[0007] In order to achieve the above object, the utility model adopts the technical scheme: a static dust removal equipment, including undercarriage, dust removal box, press roll device, ion generator, ultrasonic generating device and negative pressure collection device, the upper surface of undercarriage is equipped with dust removal box, and the dust removal box is closed, and the front and rear sides of dust removal box are respectively provided with feed inlet and discharge outlet, and the feed inlet and discharge outlet form conveying channel between them;The press roll device includes dust removal rubber roll and dust removal flower roll which are arranged in parallel, and the dust removal rubber roll and the dust removal flower roll form a dust removal channel, and the dust removal channel overlaps the conveying channel, and the left and right sides of the undercarriage are respectively provided with the fixedly arranged side frame, and the first side end of the dust removal rubber roll and the dust removal flower roll is rotatably installed in one side frame, and the second side end of the dust removal rubber roll and the dust removal flower roll is respectively connected with a floating roller seat;The floating roller seat is provided with an upper and lower shaft hole 56, so as to rotatably connect the dust removal rubber roll and the dust removal flower roll, and the bottom of the floating roller seat is provided with a light rod, the bottom of the light rod is movably inserted with a slide cylinder, the slide cylinder is fixed to the undercarriage, and the outside of the light rod is sleeved with a spring, and the upper end of the spring is connected with the floating roller seat, and the lower end is connected with the slide cylinder, so as to realize the floating arrangement of the dust removal rubber roll and the dust removal flower roll;The ultrasonic generating device is connected with at least one ultrasonic transducer through a cable;The floating roller seat is located on the inside of the other side frame, and the ultrasonic transducer is fixedly installed on the top of the side frame, and respectively touches the floating roller seat;The ion generator includes an ion wind stick, and the ion wind stick is fixed to any one side frame and faces the dust removal channel.

[0008] In further technical solutions, the ion generator further includes a high-voltage transformer, the high-voltage transformer is fixed to the side frame near the floating roller seat, and the ion wind stick is connected to the high-voltage transformer;The floating roller seat is provided with an inner and outer through hole in the middle position, the ion wind stick passes through the hole horizontally, and extends to the dust removal channel.

[0009] In further technical solutions, the bottom of the slide cylinder is fixed with a support seat, and the support seat is fixed to the undercarriage;The top of the slide cylinder is provided with a cylinder cavity, and the top opening of the cylinder cavity is provided with a dustproof ring, and the bottom of the cylinder cavity is further provided with an elastic rubber pad, and the light rod is movably inserted in the cylinder cavity and passes through the dustproof ring, and the bottom of the light rod touches the elastic rubber pad.

[0010] In further technical solutions, the end of the dust removal rubber roll and the dust removal flower roll is respectively provided with a transmission gear, and the two transmission gears are engaged;The side of the undercarriage is provided with a motor seat, and the motor seat is provided with a roller group driving motor and a speed reducer, the input end of the speed reducer is drivingly connected with the roller group driving motor, and the output end of the speed reducer is drivingly connected with the dust removal rubber roll or the dust removal flower roll.

[0011] In a further technical solution, a dust collection box is arranged below the dust removal flower roller, the projection area of the upper opening of the dust collection box is larger than the projection area of the dust removal flower roller, and the dust collection box is arranged in the vertical direction, the dust removal flower roller is located in the upper opening of the dust collection box, and the bottom of the dust collection box is connected with a negative pressure driving mechanism through a pipeline.

[0012] In a further technical solution, the negative pressure driving mechanism is sequentially provided with a filter box, a blower and a dust collection bag from inside to outside, and the three are sequentially connected through pipelines.

[0013] In a further technical solution, a brush shaft is rotatably arranged on the upper opening of the dust collection box, the rotation axis of the brush shaft is parallel to the rotation axis of the dust removal flower roller, the surface of the brush shaft is uniformly provided with bristles, and the bristles of the brush shaft are in frictional cooperation with the roller surface of the dust removal flower roller.

[0014] In a further technical solution, when the equipment is running, the inside of the dust collection box maintains a working negative pressure of -250 to -400 Pa.

[0015] In a further technical solution, the working frequency of the ultrasonic transducer is 30 kHz to 50 kHz.

[0016] In a further technical solution, the roller surface of the dust removal rubber roller is covered with a replaceable PU rubber sleeve with different thicknesses; the roller surface of the dust removal flower roller is formed with a rough surface structure uniformly provided with a plurality of angular protrusions; and a dynamic gap of 0.3 mm to 1.5 mm is formed between the dust removal rubber roller and the dust removal flower roller.

[0017] After adopting the above structure, the advantages of the present application compared with the prior art are:

[0018] 1. Through the synergistic effect of high-frequency ultrasonic vibration and the floating roller group, the surface dust of the book produces cavitation effect, and the removal efficiency of micron-level dust (≥0.5 μm) reaches more than 99.5% (the traditional equipment is 82-88%). The residual amount of dust on the processed book surface is ≤0.3 mg / m², which is reduced by two orders of magnitude compared with the industry standard.

[0019] 2. The floating roller group mechanism is double-controlled by spring pre-tightening force and slide cylinder damping, so that the roller pressure contact force is dynamically stabilized in the range of 5-50 N, and the book thickness of 0.5-50 mm can be automatically adapted, and the book page creases caused by traditional rigid roller pressure are eliminated. The actual measurement shows that the book damage rate is reduced from the industry average of 0.3% to 0.05% or less.

[0020] 3. The radial vibration standing wave formed on the surface of the dust removal flower roller makes the dust with a particle size of >2 μm jump periodically (the amplitude reaches 12-15 μm), and cooperates with the 3.5 m / s laminar flow field established by the negative pressure dust collection system in the book channel to realize instantaneous capture of the dust, and the dust escape rate is reduced from 21% of the traditional equipment to 5%.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model is further explained below in combination with the drawings and embodiments.

[0022] Figure 1 It is the structure schematic diagram of the utility model.

[0023] Figure 2 It is the structure schematic diagram of the floating roller seat in the utility model. DETAILED DESCRIPTION

[0024] The following is only the preferred embodiment of the utility model, and does not limit the protection scope of the utility model.

[0025] The inventor optimizes and improves the electrostatic precipitator in the prior art, and combines the synergistic effect of high-frequency ultrasonic vibration to make the dust on the surface of the book produce cavitation effect, so as to further optimize the effect of electrostatic precipitation.

[0026] As shown in Figure 1 and Figure 2 An electrostatic precipitation equipment includes a base frame 1, a dust removal box 12, a compression roller device, an ion generator, an ultrasonic generating device and a negative pressure collecting device. The dust removal box 12 is arranged on the upper surface of the base frame 1, and the dust removal box 12 is arranged in a closed manner. The dust removal box 12 is provided with a feeding port and a discharging port on the front and rear sides respectively, and a conveying channel 13 is formed between the feeding port and the discharging port. The compression roller device includes dust removal rubber rollers 2 and dust removal flower rollers 3 arranged in parallel with each other, and a dust removal channel is formed between the dust removal rubber rollers 2 and the dust removal flower rollers 3. The dust removal channel overlaps the conveying channel 13. The base frame 1 is provided with fixed side frames 11 on the left and right sides. The first side end of the dust removal rubber rollers 2 and the dust removal flower rollers 3 is rotatably installed on one of the side frames 11, and the second side end of the dust removal rubber rollers 2 and the dust removal flower rollers 3 is connected with a floating roller seat 55. The floating roller seat 55 is provided with shaft holes arranged in an up-down manner to rotatably connect the dust removal rubber rollers 2 and the dust removal flower rollers 3. The bottom of the floating roller seat 55 is provided with a light rod 53. The bottom of the light rod 53 is movably inserted with a slide cylinder 52. The slide cylinder 52 is fixed to the base frame 1, and the outer side of the light rod 53 is sleeved with a spring 54. The upper end of the spring 54 is connected with the floating roller seat 55, and the lower end of the spring 54 is connected with the slide cylinder 52, so as to realize the floating arrangement of the dust removal rubber rollers 2 and the dust removal flower rollers 3. The ultrasonic generating device is connected with at least one ultrasonic transducer 57 through a cable. The floating roller seat 55 is located on the inner side of the other side frame 11. The ultrasonic transducer 57 is fixedly installed on the top of the side frame 11, and respectively contacts the floating roller seat 55. The ion generator includes an ion air stick 61. The ion air stick 61 is fixed to any one of the side frames 11 and faces the dust removal channel.

[0027] The book surface dust produces cavitation effect through the cooperation of high-frequency ultrasonic vibration and the floating roller group, and the micron-level dust removal efficiency of ≥0.5 μm is 99.5%, which is higher than 82-88% of the traditional equipment. The residual dust on the treated book surface is ≤0.3 mg / m², which is two orders of magnitude lower than the industry standard.

[0028] The radial vibration standing wave formed on the surface of the dust removal flower roller makes the dust with a particle size of >2 μm jump periodically with an amplitude of 12-15 μm, and cooperates with the 3.5 m / s laminar flow field established by the negative pressure dust collection system in the book channel to realize instantaneous capture of the dust, and the dust escape rate is reduced from 21% of the traditional equipment to 5%.

[0029] Specifically, the ion generator further comprises a high-voltage transformer 6 fixed to a side frame 11 near one side of the floating roller seat 55, and an ion wind rod 61 connected to the high-voltage transformer 6; an inner and outer through avoiding hole 550 is formed in the middle position of the floating roller seat 55, the ion wind rod 61 horizontally passes through the avoiding hole 550 and extends to the dust removal channel.

[0030] Specifically, the bottom of the sliding cylinder 52 is fixed with a support seat 51 which is fixed to the bottom frame 1; the top of the sliding cylinder 52 is provided with a cylinder cavity 520, the top opening of the cylinder cavity 520 is provided with a dustproof ring 522, and the bottom of the cylinder cavity 520 is further provided with an elastic rubber pad 521; a light rod 53 is movably inserted into the cylinder cavity 520 and penetrates through the dustproof ring 522, and the bottom of the light rod 53 is in contact with the elastic rubber pad 521.

[0031] The floating roller group mechanism is controlled by the spring pre-tightening force and the damping of the sliding cylinder 52, so that the roller pressure contact force is dynamically stabilized in the range of 5-50 N, which can automatically adapt to books with a thickness of 0.5-50 mm and eliminate the page creases caused by the traditional rigid roller pressure. The actual measurement of book damage rate is reduced from the industry average of 0.3% to below 0.05%.

[0032] Specifically, the ends of the dust removal rubber roller 2 and the dust removal flower roller 3 are respectively provided with a transmission gear 81, and the two transmission gears 81 are meshed and connected; the side of the bottom frame 1 is provided with a motor seat 14, the motor seat 14 is provided with a roller group driving motor 83 and a speed reducer 82, the roller group driving motor 83 is drivingly connected to the input end of the speed reducer 82, and the output end of the speed reducer 82 is drivingly connected to the dust removal rubber roller 2 or the dust removal flower roller 3.

[0033] Specifically, a dust collection tank 4 is arranged below the dust removal flower roller 3, the projection area of the upper opening of the dust collection tank 4 is greater than the projection area of the dust removal flower roller 3, and the dust collection tank 4 is arranged in the vertical direction, the dust removal flower roller 3 is located in the upper opening of the dust collection tank 4, and the bottom of the dust collection tank 4 is connected with a negative pressure driving mechanism through a pipeline.

[0034] Specifically, the negative pressure driving mechanism is sequentially provided with the filter box 71, the air blower 72 and the dust collecting bag 73 from inside to outside, and the three are sequentially connected by pipes.

[0035] Specifically, the upper opening of the dust collecting box 4 is rotationally provided with a brush shaft 41, the rotation axis of the brush shaft 41 is parallel to the rotation axis of the dust removing roller 3, the surface of the brush shaft 41 is uniformly provided with bristles, and the bristles of the brush shaft 41 are in frictional cooperation with the roller surface of the dust removing roller 3.

[0036] Specifically, the inside of the dust collecting box 4 maintains a working negative pressure of-250~-400Pa during the operation of the equipment.

[0037] Specifically, the working frequency of the ultrasonic transducer 57 is 30kHz~50kHz.

[0038] Specifically, the roller surface of the dust removing rubber roller 2 is coated with a replaceable PU rubber sleeve with different thicknesses; the roller surface of the dust removing roller 3 is formed with a rough surface structure uniformly provided with a plurality of angular protrusions; and a dynamic gap of 0.3mm~1.5mm is formed between the dust removing rubber roller 2 and the dust removing roller 3.

[0039] The above is only the preferred embodiment of the present application, and for those skilled in the art, the specific implementation and application range can be changed according to the idea of the present application, and the content of the specification should not be understood as the limitation of the present application.

Claims

1. An electrostatic dust removal device, characterized in that: Includes a base frame (1), a dust collection box (12), a pressure roller device, an ion generator, an ultrasonic generator, and a negative pressure collection device. The dust collector (12) is located on the upper surface of the base frame (1). The dust collector (12) is enclosed. The front and rear sides of the dust collector (12) are respectively provided with a feed inlet and a discharge outlet, and a conveying channel (13) is formed between the feed inlet and the discharge outlet. The pressure roller device includes a dust removal rubber roller (2) and a dust removal flower roller (3) arranged parallel to each other. A dust removal channel is formed between the dust removal rubber roller (2) and the dust removal flower roller (3). The dust removal channel overlaps with the conveying channel (13). Side frames (11) are fixedly arranged on the left and right sides of the base frame (1). The first side ends of the dust removal rubber roller (2) and the dust removal flower roller (3) are rotatably installed on one of the side frames (11). The second side ends of the dust removal rubber roller (2) and the dust removal flower roller (3) are respectively connected to a floating roller seat (55). 5) has shaft holes (56) set at the top and bottom to rotatably connect the dust removal rubber roller (2) and the dust removal flower roller (3). The bottom of the floating roller seat (55) is provided with a smooth rod (53). A sliding cylinder (52) is movably inserted at the bottom of the smooth rod (53). The sliding cylinder (52) is fixed to the base frame (1). A spring (54) is sleeved on the outside of the smooth rod (53). The upper end of the spring (54) is connected to the floating roller seat (55) and the lower end is connected to the sliding cylinder (52) to realize the floating setting of the dust removal rubber roller (2) and the dust removal flower roller (3). The ultrasonic generator is connected to at least one ultrasonic transducer (57) via a cable; the floating roller seat (55) is located inside another side frame (11), and the ultrasonic transducer (57) is fixedly installed on the top of this side frame (11) and respectively contacts the floating roller seat (55). The ion generator includes an ion bar (61), which is fixed to any one of the side frames (11) and faces the dust removal channel.

2. The electrostatic dust removal equipment according to claim 1, characterized in that: The ion generator also includes a high-voltage transformer (6), which is fixed to the side frame (11) near the floating roller seat (55). The ion air bar (61) is connected to the high-voltage transformer (6). A through-hole (550) is opened in the middle of the floating roller seat (55). The ion air bar (61) passes horizontally through the through-hole (550) and extends to the dust removal channel.

3. The electrostatic dust removal equipment according to claim 2, characterized in that: The bottom of the slide cylinder (52) is fixed with a support seat (51), which is fixed to the base frame (1); the top of the slide cylinder (52) is provided with a cylinder cavity (520), a dustproof ring (522) is provided at the top opening of the cylinder cavity (520), and an elastic rubber pad (521) is provided at the bottom of the cylinder cavity (520). The light rod (53) is movably inserted into the cylinder cavity (520) and passes through the dustproof ring (522). The bottom of the light rod (53) contacts the elastic rubber pad (521).

4. The electrostatic dust removal equipment according to claim 3, characterized in that: The ends of the dust removal rubber roller (2) and the dust removal flower roller (3) are respectively provided with a transmission gear (81), and the two transmission gears (81) are meshed together; the side of the base frame (1) is provided with a motor seat (14), the motor seat (14) is provided with a roller group drive motor (83) and a reduction gearbox (82), the roller group drive motor (83) is driven to the input end of the reduction gearbox (82), and the output end of the reduction gearbox (82) is driven to the dust removal rubber roller (2) or the dust removal flower roller (3).

5. The electrostatic dust removal equipment according to claim 4, characterized in that: A dust collection box (4) is provided below the dust removal roller (3). The projected area of ​​the upper opening of the dust collection box (4) is larger than the projected area of ​​the dust removal roller (3) and is arranged in a vertical direction. The dust removal roller (3) is located inside the upper opening of the dust collection box (4). The bottom of the dust collection box (4) is connected to a negative pressure drive mechanism through a pipe.

6. The electrostatic dust removal device according to claim 5, characterized in that: The negative pressure drive mechanism consists of a filter box (71), a blower (72), and a dust collection bag (73) arranged sequentially from the inside to the outside. These three components are connected in sequence by pipes.

7. The electrostatic dust removal equipment according to claim 6, characterized in that: A brush shaft (41) is rotatably mounted on the upper opening of the dust collection box (4). The rotation axis of the brush shaft (41) is parallel to the rotation axis of the dust removal roller (3). The surface of the brush shaft (41) is evenly distributed with bristles, and the bristles of the brush shaft (41) are in frictional contact with the roller surface of the dust removal roller (3).

8. The electrostatic dust removal device according to claim 7, characterized in that: When the equipment is running, the dust collection box (4) maintains a working negative pressure of -250~-400Pa.

9. The electrostatic dust removal device according to claim 1, characterized in that: The ultrasonic transducer (57) operates at a frequency of 30kHz to 50kHz.

10. The electrostatic dust removal device according to claim 1, characterized in that: The dust removal roller (2) is covered with replaceable PU sleeves of different thicknesses; the dust removal flower roller (3) has a rough surface structure formed by a variety of evenly distributed angular protrusions on its roller surface; a dynamic gap of 0.3mm to 1.5mm is formed between the dust removal roller (2) and the dust removal flower roller (3).

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