CN210161298U

CN210161298U - Gas ring assembly and wastepaper finishing device thereof

Info

Publication number: CN210161298U
Application number: CN201920826309.4U
Authority: CN
Inventors: 王雷; 廖景星
Original assignee: Jiangsu Langhui Industrial Development Co Ltd
Current assignee: Jiangsu Langhui Industrial Development Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-03-20
Anticipated expiration: 2029-06-03

Abstract

A kind of air ring assembly and its paper scrap finishing device, its paper scrap finishing device includes the stander, is fixed with the curb plate, roof, waste paper box on the stander, roof and blade can be assembled slidably, the blade is used for cutting the paper or board; the top plate is provided with an air cylinder, and a telescopic shaft of the air cylinder penetrates through the top plate and then is assembled and fixed with the pressing plate; the four side plates are respectively assembled with the top plate in a sealing way, so that a sealing channel is enclosed by the side plates and the rack, and the waste paper box is arranged in the four side plates; the waste paper box is hermetically assembled with the side plate through the air ring assembly; at least two air suction holes are formed in one side face of the waste paper box and are distributed on the inner box at different heights respectively; the air suction hole is communicated with one end of the paper suction inner cavity of the paper suction module through a connecting pipe; a sealing soft body is fixed on the side surface of the pressing plate and is made of soft and elastic materials; the side plate is provided with a slot for the waste paper box to pass in and out, the top of the slot is hinged with one end of the door plate through a door plate shaft, and the door plate is fixed with a third sealing air ring.

Description

Gas ring assembly and wastepaper finishing device thereof

Technical Field

The utility model relates to a wastepaper arrangement technique especially relates to a gas ring subassembly and wastepaper finishing device thereof.

Background

On equipment such as a paper cutter and a waste cleaning machine, an essential part is a paper scrap collecting device which is mainly responsible for sucking shredded paper scraps into a waste paper box and then storing the shredded paper scraps. The technology is a well-developed technology at present, but the applicant finds that the current paper scrap tidying device (paper scrap collecting device) has the following defects in practical research and use:

1. the height of the paper in the waste paper box can not be judged, so that frequent inspection is required, and if a transparent waste paper box is arranged, the paper is used for weaving inspection.

2. The wastepaper is loose in the wastepaper case, seriously reduces the holding capacity of the wastepaper case, and when the later stage is cleared up, the wastepaper is generally poured out and then is intensively processed, and the wastepaper is always in a loose state in the whole process, so that the occupation of the space is very large, and the storage cost can be obviously and seriously increased. And when loose paper scraps in the waste paper box are taken out, the paper scraps are easy to scatter, so that the cleaning cost is increased.

3. The waste paper boxes are generally installed in a built-in mode, and need to be directly dumped or pushed to a destination by a trolley to be dumped after being taken out, so that the conveying cost of the waste paper boxes is obviously increased, and the waste paper boxes are relatively troublesome to disassemble and assemble, so that the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that an air ring subassembly and wastepaper finishing device are provided, its wastepaper finishing device can realize compressing tightly of wastepaper to increase the waste paper case holding capacity and reduce later stage transportation, clearance cost.

In order to achieve the purpose, the utility model provides an air ring component which is used for sealing a gap between a side plate and a waste paper box and comprises a first sealing air ring, a third sealing air ring, a second sealing air ring and a pressure valve, wherein the inner side surface of the first sealing air ring is pressed and sealed with the side surface of the waste paper box after air inlet expansion of the first sealing air ring, and the third sealing air ring is pressed and sealed with the last side surface of the waste paper box;

the first sealing air ring, the second sealing air ring and the third sealing air ring are respectively communicated with a connecting air pipe, one end of the connecting air pipe is communicated with an air outlet of the air extractor, and the other end of the connecting air pipe is communicated with a third joint of the pressure valve.

Preferably, the first sealing air ring is fixed on the three side plates, a top sealing table and a flow guide inclined plane are arranged on the first sealing air ring, the top sealing table is attached to the top surface of the waste paper box and sealed, and the inner side surface of each side plate is obliquely communicated with the inner box of the waste paper box through the flow guide inclined plane.

Preferably, the second sealing air ring is fixed on the side plate corresponding to the air suction hole, the second sealing air ring is compressed and sealed with the side surface of the waste paper box after air is introduced and expanded, and the second sealing air ring is arranged around the air suction hole to seal a gap between the side plate and the air suction hole.

Preferably, the first sealing air ring, the second sealing air ring, the third sealing air ring and the elastic folded pipe are respectively made of elastic materials, and the interiors of the first sealing air ring, the second sealing air ring, the third sealing air ring and the elastic folded pipe are hollow; the first sealing air ring, the second sealing air ring and the third sealing air ring expand after air suction.

Preferably, the pressure valve comprises a pressure housing, a first pressure chamber and a second pressure chamber are arranged in the pressure housing, a gas passing groove is formed in one part of the side surface in the first pressure chamber, the first pressure chamber and the second pressure chamber are respectively assembled with a first pressure piston and a second pressure piston in a sealing mode, the first pressure chamber is located on two sides of the first pressure piston and is respectively communicated with the second pressure chamber and a first connector, a first pressure spring is arranged between the first pressure piston and the first connector and in the first pressure chamber, and the first pressure spring is used for generating elastic force for blocking the first pressure piston from moving towards the gas passing groove;

the first pressure piston is in contact with the connecting rod, the other end of the connecting rod penetrates through the spacer ring and then is in seal assembly with the second pressure piston, the spacer ring is fixed in the second pressure cavity and is in seal assembly with the inner wall of the second pressure cavity and the connecting rod respectively, and a second pressure spring is sleeved on the part, located between the spacer ring and the second pressure piston, of the connecting rod; the parts of the second pressure cavity between the spacer ring and the first pressure piston are also respectively communicated with the third joint.

Preferably, the paper suction device further comprises a paper suction module, the paper suction module comprises a paper suction power shell, a hollow paper suction inner cavity is formed in the paper suction power shell, an air guide groove is formed in the paper suction inner cavity, and one end of the paper suction inner cavity is communicated with the air suction hole through a connecting pipe;

in an initial state, the part of the paper suction inner cavity which is not provided with the air guide groove is hermetically assembled with the first piston, the first piston is provided with a first spring convex column, the first spring convex column is sleeved with one end of a first spring, the other end of the first spring is sleeved with a second spring convex column, and the second spring convex column is fixed on the inner wall of the paper suction inner cavity;

a dustproof cavity is also arranged in the paper suction power shell and is communicated with the paper suction inner cavity; the dustproof cavity is communicated with the gas distribution pipe, and the gas distribution pipe is communicated with a gas suction hole of the gas extractor through a gas suction pipe;

the position, in the paper suction inner cavity, where the air guide groove is arranged is also communicated with a first detection cavity through a detection air pipe, the first detection cavity is arranged on the detection shell, a second piston is hermetically arranged in the first detection cavity, and a permanent magnet is arranged on the second piston; a second spring is arranged in the first detection cavity and between the second piston and the end surface of the communication part of the detection air pipe; an air inlet hole is formed in the first detection cavity and between the second piston and the closed end of the first detection cavity, and the air inlet hole penetrates through the detection shell;

a second detection cavity is further formed in the detection shell, a microswitch is installed in the second detection cavity, and the trigger end of the microswitch is opposite to the end face of one end of the trigger rod; the other end of the trigger rod penetrates through the fixed partition plate and the third spring and then is assembled and fixed with the magnet disc, and the magnet disc is made of a permanent magnet; the second piston is homopolar and opposite to the magnet disc.

Preferably, one end of the inner cavity of the paper suction is communicated with a filter head arranged in the air suction hole through a connecting pipe, a first filter screen is arranged in the filter head, and the first filter screen is used for preventing paper scraps from entering the connecting pipe;

the inner part of the dustproof cavity is fixedly provided with a hinged block, the hinged block is hinged with one end of a one-way valve block through a first rotating shaft, and the dustproof cavity is separated from the inner cavity of the paper suction cavity in the initial state of the one-way valve block.

The utility model also discloses a wastepaper finishing device, its application has above-mentioned gas ring subassembly.

Preferably, the paper cutting machine further comprises a rack, wherein side plates, a top plate and a waste paper box are fixed on the rack, the top plate and a blade can be assembled in a sliding mode, and the blade is used for cutting paper or plates; the top plate is provided with an air cylinder, and a telescopic shaft of the air cylinder penetrates through the top plate and then is assembled and fixed with the pressing plate; the four side plates are respectively assembled with the top plate in a sealing mode, so that a sealing channel is formed by the side plates and the machine frame in a surrounding mode, and the waste paper box is installed in the four side plates; the waste paper box is hermetically assembled with the side plate through the air ring assembly;

at least two air suction holes are further formed in one side face of the waste paper box, and the two air suction holes are distributed in different heights of the inner box respectively; the air suction hole is communicated with one end of the paper suction inner cavity of the paper suction module through a connecting pipe;

a sealing soft body is fixed on the side surface of the pressing plate and is made of soft and elastic materials; the side plate is provided with a notch enabling the waste paper box to enter and exit, the top of the notch is hinged with one end of the door plate through a door plate shaft, a third sealing air ring is fixed on the door plate and is connected with the first sealing air ring through an elastic folded pipe, and the inside of the third sealing air ring is communicated with the inside of the first sealing air ring and the inside of the elastic folded pipe.

Preferably, the bottom of the waste paper box is provided with a base and a supporting block, the base is provided with a matching bulge and a supporting leg, the supporting block and the supporting rod can be assembled in an axial sliding mode, and the top of the supporting rod penetrates through the supporting block and then is assembled and fixed with a nut; the bottom of the support rod penetrates through the support block and then is assembled and fixed with the universal wheel, a limiting nut is fixed on the part of the support rod between the universal wheel and the support block, and a damping spring is arranged on the part of the support rod between the limiting nut and the support block;

the base is provided with a gear mounting groove, a rack sliding groove and a limiting rod sliding hole, the rack sliding groove and the rack are assembled in a sliding mode, and the limiting rod sliding hole and the limiting rod are assembled in an axial sliding mode to form two ends of a limiting rod which is respectively assembled and fixed with the stop ring and the end portion of the rack;

the rack is meshed with the gear to form a gear-rack transmission mechanism, the gear is installed in a gear installation groove, the gear is coaxially fixed at one end of the connecting cylinder, two ends of the connecting cylinder are respectively rotatably assembled with the base, the interior of the connecting cylinder is axially assembled with the detection rod in a sliding manner, the end face of one end of the detection rod is opposite to the pressure input end of the pressure sensor, the pressure sensor is installed in a support shell, and the support shell is fixed on the base;

a locking installation groove and a locking sliding groove are further formed in the matching bulge, the part, located in the locking installation groove, of the connecting cylinder is fixedly assembled with the locking disc, the locking disc is eccentrically hinged with one end of at least one second locking rod through a second pin shaft, the other end of the second locking rod is hinged with one end of the first locking rod through a first pin shaft, and the other end of the first locking rod penetrates through the locking sliding groove and then is assembled with the locking groove formed in the inner side of the waste paper box in a clamping mode;

the other end of the detection rod penetrates through the base and then is assembled and fixed with the pressure plate, the pressure plate and the top surface of the base are assembled in a sealing mode through the sealing ring, so that a sealed pressure bearing cavity is formed, hydraulic oil is filled in the pressure bearing cavity, and the pressure bearing cavity is communicated with a second connector of the pressure valve through a hydraulic oil pipe.

The utility model has the advantages that:

1. the utility model discloses a cylinder compresses tightly the design of wastepaper, and the holding capacity that can greatly increased waste paper case sees with present test, can empty the frequency with waste paper case at least and reduce to original 2/3. Obviously, this can greatly improve production efficiency and reduce operator labor intensity.

2. The utility model discloses a bottom plate extrudees the hydraulic oil of power intracavity, thereby realize that the automation of pressure valve is opened, with reduce the pressure between first sealed gas ring, the sealed gas ring of second, the sealed gas ring of third and the waste paper case, thereby prevent to cause to reduce the degree of wear of first sealed gas ring, the sealed gas ring of second, the sealed gas ring of third and the waste paper case too big because reduce the pressure between first sealed gas ring, the sealed gas ring of second, the sealed gas ring of third and the waste paper case too big when pressing the paper bits.

3. The utility model discloses a design of locking the mechanism to the waste paper case can make conveniently dismantle between waste paper case and the base to be convenient for take out the paper cake after compressing tightly, this degree of convenience with regard to greatly increased later stage clearance, the waste paper case can directly promote the waste paper case to empty to the destination during clearance from taking the universal wheel moreover, need not other equipment, thereby the degree of convenience of its use of greatly increased.

4. The utility model discloses compare with current similar equipment and though manufacturing cost will go out 2-3 times, the structure is complicated a lot relatively, but this kind of design very is applicable to intelligent equipment, sees from its human cost of saving, the production efficiency who improves, adopts the utility model discloses its benefit increases more than 4 times than current similar device at least after. Therefore, from long-range the opening, the utility model discloses an actual cost is not than the height of current similar device, on the contrary in intelligent equipment, the utility model discloses an actual cost still is far less than current similar equipment, and this is mainly the utility model discloses a press the wastepaper bits directly in the waste paper case into the result that the paper cake lock obtained, reduce clearance and observation cost.

5. The utility model discloses a different suction hole about setting up on the waste paper case to inhale the paper module in every suction hole department installation, thereby detect the height of wastepaper through inhaling the paper module, and whether the discovery waste bin need clear up in time, thereby avoid artifical inspection, reduce operator intensity of labour and error rate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a process diagram at F1 in fig. 1.

Fig. 3 is an enlarged view at F2 in fig. 2.

Fig. 4 is a schematic view of the structure of the base and the upper locking wheel of the present invention.

Fig. 5 is a schematic view of the structure of the base, the gear and the rack of the present invention.

Fig. 6 is a schematic structural diagram of the pressure valve of the present invention.

Fig. 7 is a schematic view of the structure of the door of the present invention.

Fig. 8 is a schematic structural view of the paper suction module of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 8, a wastepaper finishing device includes a frame 110, a side plate 140 and a top plate 130 are fixed on the frame 110, the top plate 130 is slidably assembled with a blade 120, and the blade 120 is used for cutting paper or plate;

the top plate 130 is provided with an air cylinder 210, a telescopic shaft 211 of the air cylinder 210 penetrates through the top plate 130 and then is assembled and fixed with a pressing plate 212, and the side surface of the pressing plate 212 is fixed with a sealing soft body 213 which is made of soft and elastic materials, wherein the soft rubber is selected in the embodiment.

The side plates 140 are four in number and are respectively hermetically fitted with the top plate 130 so as to enclose the hermetic passage 101 together with the frame 110. In use, cut paper scraps are fed into the waste paper box 410 through the sealing passage. The waste paper box is installed in the four side plates 140, a slot enabling the waste paper box 410 to enter and exit is formed in one of the side plates 140, the top of the slot is hinged to one end of the door plate 150 through a door plate shaft 160, a third sealing air ring 330 is fixed on the door plate 150, the third sealing air ring 330 is connected with the first sealing air ring 310 through an elastic corrugated pipe 340, the interior of the third sealing air ring 330 is communicated with the interior of the first sealing air ring 310 and the interior of the elastic corrugated pipe 340, and therefore the internal airflow of the third sealing air ring 330 directly flows. In use, door panel 150 is secured to side panel 140.

The first sealing air ring 310 is fixed on the three side plates 140, a top sealing table 311 and a flow guiding inclined plane 312 are arranged on the first sealing air ring 310, the top sealing table 311 is attached to the top surface of the waste paper box 410 for sealing, and the flow guiding inclined plane 312 enables the inner side surface of each side plate 140 to be obliquely communicated with the inner box 141 of the waste paper box 410;

after the first sealing air ring 310 is inflated, the inner side of the first sealing air ring is pressed and sealed with three sides of the waste paper box 410, and the third sealing air ring 330 is pressed and sealed with the last side of the waste paper box, so that the sealing between the outer wall of the waste paper box 410 and the side plate 140 is realized through the first sealing air ring 310 and the third sealing air ring 330, and the sealing degree between the sealing channel 101 and the inner box 141 is higher;

at least two air suction holes 412 are further formed in one side face of the waste paper box 410, the two air suction holes 412 are respectively distributed at different heights of the inner box 411, a second sealing air ring 320 is fixed on the side plate 140 corresponding to the air suction holes 412, the second sealing air ring 320 is compressed and sealed with the side face of the waste paper box 410 after air is sucked and expanded, and the second sealing air ring 320 is arranged around the air suction holes 412 to seal a gap between the side plate 140 and the air suction holes 412.

The first sealing air ring 310, the second sealing air ring 320, the third sealing air ring 330 and the elastic corrugated pipe 340 are respectively made of elastic materials, and the interiors of the first sealing air ring, the second sealing air ring, the third sealing air ring and the elastic corrugated pipe are hollow; the first sealing air ring 310, the second sealing air ring 320 and the third sealing air ring 330 expand after air suction, and in this embodiment, the first sealing air ring 310, the second sealing air ring 320 and the third sealing air ring 330 are made of elastic materials, such as elastic rubber and silicone rubber.

The interiors of the first sealing air ring 310, the second sealing air ring 320 and the third sealing air ring 330 are respectively communicated with a connecting air pipe 510, one end of the connecting air pipe 510 is communicated with an exhaust port of the air extractor, and the other end of the connecting air pipe 510 is communicated with a third joint 833 of the pressure valve.

Preferably, in order to increase the sealing degree between the second sealing air ring 320 and the waste paper box 410, a sealing blind groove 413 may be provided at the outer wall of the waste paper box 410 corresponding to the second sealing air ring 320, and when in use, the second sealing air ring is inflated and then enters the sealing blind groove 413, so as to obtain a better sealing effect.

The bottom of the waste paper box 410 is provided with a base 420 and a supporting block 430 fixed thereon, the base 420 is provided with a matching protrusion 422 and a supporting foot 421, the supporting block 430 and the supporting rod 620 can be axially assembled in a sliding manner, and the top of the supporting rod 620 penetrates through the supporting block 430 and then is assembled and fixed with a nut 622, so that the supporting rod 620 cannot be pulled out of the supporting block 430 downwards; the bottom of the supporting rod 620 penetrates through the supporting block 430 and then is assembled and fixed with the universal wheel 610, a limiting nut 621 is fixed on the part of the supporting rod 620 located between the universal wheel 610 and the supporting block 430, a damping spring 630 is arranged on the part of the supporting rod 620 located between the limiting nut 621 and the supporting block 430, the damping spring 630 is used for absorbing vibration of the universal wheel 610 to the supporting block 430, and when the waste paper box 410 is subjected to downward pressure, the damping spring 630 can be compressed, so that the supporting foot 421 is in contact with the ground, a large supporting force can be provided for the waste paper box, and the universal wheel 610 cannot be damaged.

The base 420 is further provided with a gear installation groove 424, a rack sliding groove 4252 and a limiting rod sliding hole 4251, the rack sliding groove 4252 is assembled with the rack 720 in a sliding manner, and the limiting rod sliding hole 4251 and the limiting rod 730 are assembled with two ends of the limiting rod 730 in an axial sliding manner and are respectively assembled and fixed with the stop ring 731 and the end of the rack 720;

the rack 720 is engaged with the gear 650 to form a gear-rack transmission mechanism, the gear 650 is installed in the gear installation groove 424, the gear 650 is coaxially fixed at one end of the connecting cylinder 680, two ends of the connecting cylinder 680 are respectively rotatably assembled with the base 420, the inside of the connecting cylinder 680 is axially and slidably assembled with the detection rod 690, one end face of the detection rod 690 is right opposite to a pressure input end of the pressure sensor 220, so that pressure can be input to the pressure sensor, the other end of the detection rod 690 penetrates through the base 420 and then is assembled and fixed with the pressing plate 440, the pressure sensor 220 is installed in the supporting shell 423, and the supporting shell 423 is fixed on the base 420;

a locking installation groove 4221 and a locking sliding groove 4222 are further arranged in the matching protrusion 422, the part of the connecting cylinder 680, which is positioned in the locking installation groove 4221, is fixedly assembled with the lock disc 370, the lock disc 670 is eccentrically hinged with one end of at least one second lock rod 642 through a second pin 712, the other end of the second lock rod 642 is hinged with one end of a first lock rod 641 through a first pin 711, and the other end of the first lock rod 641 passes through the locking sliding groove 4222 and then is assembled with a lock groove 414 arranged on the inner side of the waste paper box 410 in a clamping manner, so that the waste paper box 410 is relatively locked and fixed with the base;

the pressure plate 440 is hermetically assembled with the top surface of the base 420 through a sealing ring 442, so as to form a sealed pressure-bearing cavity 441, the pressure-bearing cavity 441 is filled with hydraulic oil 230, and the pressure-bearing cavity 441 is communicated with a second joint 832 of the pressure valve through a hydraulic oil pipe 443;

a guide convex rod 252 is fixed on the portion of the pressure plate 440 located in the pressure-bearing cavity 441, the guide convex rod 252 is installed in a guide convex cylinder 251 and can be axially assembled in a sliding manner, the guide convex cylinder 251 is fixed on the top surface of the base 420, and the outer parts of the guide convex cylinder 251 and the guide convex rod 252 are sleeved with a pressure-bearing spring 240, the pressure-bearing spring 240 is used for providing elastic resistance when the pressure plate is pressed, so that the pressure plate can be driven to reset through the self elasticity after the pressure of the pressure plate disappears.

The sealing ring 442 is made of an elastic material, and in this embodiment, soft rubber is used. In this embodiment, the sealing ring 442 and the pressure-bearing chamber 441 may be directly replaced by a sealing air bag, except that the air bag is filled with hydraulic oil, and the guide boss 251, the guide boss 252, and the pressure-bearing spring 240 are not installed inside the air bag. The two sides of the air bag are respectively assembled and fixed with the pressure plate and the base. The design is simpler and does not take into account sealing problems.

When the paper scraps in the inner box 411 need to be compressed, the air cylinder drives the telescopic shaft to move downwards, so that the compression plate 212 is driven to move downwards until the sealing soft body 213 is in contact with the flow guide inclined plane 312, and then the sealing soft body 213 enters the inner box 411 after being extruded. This design is mainly to prevent the hold-down plate 212 from being used in a gap between the inner boxes, which causes the paper scrap to be pressed unevenly and completely.

Then the pressing plate 212 moves downwards continuously to press the paper scraps to the pressing plate, and the pressing plate can extrude hydraulic oil and drive the detection rod 690 to input pressure to the pressure sensor after being pressed; hydraulic oil pressurized admission pressure valve to open the pressure valve, make the intra-annular atmospheric pressure of first sealing ring, second sealing ring, third sealing ring reduce fast, first sealing ring, second sealing ring, third sealing ring are withdrawn under self elasticity effect, thereby reduce the extrusion force of first sealing ring, second sealing ring, third sealing ring and waste paper case side. In the process of moving the waste paper box downwards, the friction force between the first sealing ring, the second sealing ring and the third sealing ring and the side face of the waste paper box is not large, and the friction loss of the first sealing ring, the second sealing ring and the third sealing ring is reduced.

The pressure sensor 220 inputs a pressure signal into the PLC, and the PLC compares the pressure signal with a preset signal until a preset pressure value is reached, and the telescopic shaft stops moving down and retracts to an initial state. The paper scrap is pressed into a paper cake at this time. In this embodiment, the pressure sensor detects that the pressure reaches about 2MPa, thereby ensuring that the wastepaper is pressed into a paper cake. In the downward pressing process, the base applies pressure to the damping spring, and the base and the waste paper box integrally move downwards until the supporting legs are in contact with the ground for supporting. Thereby avoid the universal wheel pressurized and damage, and when clamp plate pressure was little, damping spring moved up through elasticity drive waste paper case, base and resets, and the supporting legs is separated with ground.

After the pressing plate is separated from the paper cake, the pressing plate is driven to reset by the pressure-bearing spring through elasticity, the pressing plate moves upwards, so that hydraulic oil entering the pressure valve is sucked, and then returns to the pressure-bearing cavity 441, namely the pressing plate resets.

In this embodiment, the cylinder depression may be started at regular time by a timer, or may be started according to a pressure change value detected by a pressure sensor, for example, in this embodiment, the cylinder is started to depress when the pressure change value (paper dust weight increase) is 30 to 50N, and the cylinder stops depressing and starts to reset when the pressure reaches about 2 MPa. The process can be automatically controlled (only by the communication connection of the signal ends of the electromagnetic directional valve and the motor driver of the air pump with the signal end of the PLC) or manually controlled by the PLC to the electromagnetic directional valve and the air pump for supplying air to the air cylinder. In this embodiment, air pump, solenoid directional valve, PLC mounted position are unrestricted, as long as can realize the utility model discloses required function can.

Referring to fig. 4-5, when the paper cake in the waste paper box needs to be taken out, the air cylinder is pressed down again to exhaust the air in the first sealing air ring, the second sealing air ring and the third sealing air ring, at this time, the pressure between the waste paper box and the first sealing air ring, the second sealing air ring and the third sealing air ring is reduced to the minimum, then the air cylinder is reset, the door plate 150 is opened, the waste paper box is pulled out, then the rack is pushed to the limiting rod 730, the rack driving gear rotates by an angle of about 15-30 degrees, the gear drives the lock disc to synchronously rotate through the connecting cylinder, and when the lock disc rotates, the first lock rod 641 is pulled out of the lock groove through the second lock rod 642, so that the waste paper cylinder 410 can be taken out. The paper cakes can be taken out and stacked after the waste paper cylinder 410 is taken out, and the storage volume can be reduced because the paper cakes are compressed, and the frequency of cleaning waste paper boxes is greatly reduced. After the paper cake is taken out, the waste paper box is installed on the base, and then the rack is pulled out reversely, so that the lock disc is turned over to clamp and assemble the first lock rod and the lock groove again.

Referring to fig. 6, the pressure valve includes a pressure housing 810, a first pressure chamber 811 and a second pressure chamber 813 are arranged inside the pressure housing 810, a gas passing groove 812 is arranged on a part of side surfaces in the first pressure chamber 811, the first pressure chamber 811 and the second pressure chamber 813 are respectively in sealing fit with a first pressure piston 751 and a second pressure piston 752, the first pressure chamber 811 is positioned on two sides of the first pressure piston 751 and is respectively communicated with the second pressure chamber 813 and a first joint 831, a first pressure spring 741 is arranged between the first pressure piston 751 and the first joint 831 and in the first pressure chamber 811, and the first pressure spring 741 is used for generating elastic force for blocking the first pressure piston 751 from moving to the gas passing groove 812;

the first pressure piston 751 is in contact with (not fixed to) the connecting rod 520, the other end of the connecting rod 520 passes through the spacer ring 820 and then is in sealing assembly with the second pressure piston 752, the spacer ring 820 is fixed in the second pressure chamber 813 and is in sealing assembly with the inner wall of the second pressure chamber 813 and the connecting rod 520, a second pressure spring 742 is sleeved on a portion of the connecting rod 520 between the spacer ring 820 and the second pressure piston 752, and the second pressure spring 742 is used for generating elastic force for preventing the second pressure piston 752 from moving to the first pressure chamber 811.

The portions of the second pressure chamber 813 between the spacer ring 520 and the first pressure piston 751 also communicate with third joints 833, respectively.

When the air pump is used, the air pump pumps air flow to the first sealing air ring, the second sealing air ring and the third sealing air ring, then the air flow enters the third joint 833, the air pressure at the third joint 833 gradually rises until the first pressure piston 751 is pushed to move to the air passing groove 812, and the air flow is discharged out of the first joint 831 through the air passing groove 812. The design can increase the air pressure in the first sealing air ring, the second sealing air ring and the third sealing air ring, thereby ensuring the sealing property of the waste paper box.

When the air pump drives the telescopic shaft to press down, the air pump stops running, the pressing plate extrudes hydraulic oil to the second joint 832 and then enters the second pressure cavity 813, so that the second pressure piston 752 is driven to move towards the first pressure piston to drive the first pressure piston to move to the air passing groove 812, the first sealing air ring, the second sealing air ring and the third sealing air ring extrude air in the first sealing air ring, the air is exhausted to the first joint through the third joint, and the first sealing air ring, the second sealing air ring and the third sealing air ring are reduced, so that the pressure between the first sealing air ring, the second sealing air ring and the waste paper box is reduced. After the pressure of the pressure plate disappears, the pressure bearing spring, the first pressure spring and the second pressure spring reset so as to reset the hydraulic oil to the pressure bearing cavity.

The pumping machine operates again to inflate the first sealing air ring, the second sealing air ring and the third sealing air ring, and then enters a next cycle.

Referring to fig. 1 and 8, the air suction hole 412 is communicated with one end of a paper suction cavity a311 of the paper suction module a through a connecting pipe a210, the paper suction module includes a paper suction power shell a310, the paper suction power shell a310 is internally provided with a hollow paper suction cavity a311, an air guide groove a312 is arranged on the paper suction cavity a311, one end of the paper suction cavity a311 is communicated with a filter head a110 installed in the air suction hole 412 through the connecting pipe a210, a first filter screen is installed in the filter head a110, and the first filter screen is used for preventing paper dust from entering the connecting pipe a 210;

in an initial state, the part of the paper suction cavity A311 which is not provided with the air guide groove A312 is hermetically assembled with the first piston A411, a first spring convex column is arranged on the first piston A411, the first spring convex column is sleeved with one end of a first spring A511, the other end of the first spring A511 is sleeved with a second spring convex column A315, and the second spring convex column A315 is fixed on the inner wall of the paper suction cavity A311;

the paper suction power shell A310 is also internally provided with a dustproof cavity A313, the dustproof cavity A313 is communicated with the paper suction inner cavity A311, a hinge block A314 is fixed inside the dustproof cavity A313, the hinge block A314 is hinged with one end of a one-way valve plate A430 through a first rotating shaft A520, and the dustproof cavity A313 is isolated from the paper suction inner cavity A311 when the one-way valve plate A430 is in an initial state;

the filter element A120 is arranged in the dustproof cavity A313, the filter element A120 is used for filtering fine particles in airflow, and an air filter element or a dustproof filter screen is directly adopted in the embodiment; and the dustproof cavity A313 is communicated with the gas distribution pipe A220, and the gas distribution pipe A220 is communicated with a gas suction hole of the gas suction machine through a gas suction pipe, so that the gas suction machine can apply negative pressure to the inner cavity of the paper suction machine.

Inhale in paper inner chamber A311, be provided with air guide groove A312 department and still communicate with first detection chamber A321 through detecting trachea A230, first detection chamber A321 sets up on detecting shell A320, and seal installation has second piston A421 in the first detection chamber A321, installs the permanent magnet on the second piston A421, like neodymium magnet.

A second spring A512 is arranged in the first detection cavity A321 and between the end faces of the communication positions of the second piston A421 and the detection air tube A230, and the second spring A512 is used for generating elastic force for preventing the second piston A421 from moving to the detection air tube A230;

an air inlet hole A323 is arranged in the first detection cavity A321 and between the second piston A421 and the closed end of the first detection cavity A321, and the air inlet hole A323 penetrates through the detection shell A320, so that when the second piston A421 moves, air flow can enter and exit the first detection cavity A321 through the air inlet hole A323;

a second detection cavity A322 is further arranged in the detection shell A320, a microswitch A610 is installed in the second detection cavity A322, the trigger end of the microswitch A610 is opposite to the end face of one end of the trigger rod A530, and the microswitch A610 can be triggered when the trigger rod A530 moves axially;

the other end of the trigger rod A530 penetrates through the fixed partition plate A360 and the third spring A513 and then is assembled and fixed with the magnet disc A422, and the magnet disc A422 is made of a permanent magnet, such as a neodymium magnet. The third spring A513 is used for generating a force to the magnet disc far away from the microswitch;

the second piston a421 is homopolar opposite to the magnet disc a422, thereby generating a mutual repulsive force. In an initial state, due to the repulsive force of the second piston a421 and the magnet disc a422, the magnet disc a422 overcomes the elastic force of the third spring to move downwards, so that the trigger rod triggers the microswitch a610, and the signal end of the microswitch is in communication connection with the signal end of the PLC.

When the micro-gap detection device is used, the air extractor generates negative pressure to the paper suction inner cavity, so that the first piston is driven to overcome the elastic force of the first spring to move towards the one-way valve plate A430 until the paper suction inner cavities at the two sides of the first piston of the air guide groove are communicated, then the inner box is generated with suction through the communication part of the connecting pipe A210 and the inner box 411, so that paper scraps are sucked into the inner box, when the paper scrap pressing part completely covers the filter head corresponding to one of the connecting pipes A210, the connecting pipe A210 at the end is in a blocking state, at the moment, the suction of the paper suction inner cavity to the first piston is reduced, the first piston is reset under the action of the spring, so that the suction of the paper suction inner cavity to the first detection cavity A321 is increased, the second piston A421 overcomes the elastic force of the second spring to move upwards, so that the repulsive force between the second piston and the magnet disc is reduced, the magnet disc moves upwards under the, the micro switch interrupts the signal input by the PLC, and the PLC judges that the paper scrap is full.

When the micro-gap switch who is located the top loses the signal of telecommunication, PLC judges for needs clearance inner box, then reminds the operator through the reminding device who sets up in advance, and the reminding device of this embodiment is the pilot lamp, and when every not co-altitude micro-gap switch loses the signal of telecommunication, the pilot lamp that PLC control corresponds lights to make the operator surveyability. The design realizes the function of automatically detecting the height of the paper scraps in the inner box, thereby facilitating the use and improving the production efficiency.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an air ring subassembly for seal the gap between curb plate and the waste paper case, characterized by: the sealing device comprises a first sealing air ring, a third sealing air ring, a second sealing air ring and a pressure valve, wherein the inner side surface of the first sealing air ring is pressed and sealed with the side surface of the waste paper box after the first sealing air ring is inflated, and the third sealing air ring is pressed and sealed with the last side surface of the waste paper box;

2. The air ring assembly of claim 1, wherein: the first sealing air ring is fixed on the three side plates, a top sealing platform and a flow guide inclined plane are arranged on the first sealing air ring, the top sealing platform is attached to the top surface of the waste paper box and sealed, and the inner side surface of each side plate is communicated with the inner box of the waste paper box in an inclined mode through the flow guide inclined plane.

3. The air ring assembly of claim 1, wherein: the second sealing air ring is fixed on the side plate corresponding to the air suction hole, the second sealing air ring is compressed and sealed with the side surface of the waste paper box after air is introduced and expanded, and the second sealing air ring is arranged around the air suction hole to seal a gap between the side plate and the air suction hole.

4. The air ring assembly of claim 1, wherein: the first sealing air ring, the second sealing air ring, the third sealing air ring and the elastic folded pipe are respectively made of elastic materials, and the interiors of the first sealing air ring, the second sealing air ring, the third sealing air ring and the elastic folded pipe are hollow; the first sealing air ring, the second sealing air ring and the third sealing air ring expand after air suction.

5. The air ring assembly of claim 1, wherein: the pressure valve comprises a pressure shell, wherein a first pressure cavity and a second pressure cavity are arranged in the pressure shell, a gas passing groove is formed in one part of the side surface in the first pressure cavity, the first pressure cavity and the second pressure cavity are respectively in sealing assembly with a first pressure piston and a second pressure piston, the first pressure cavity is positioned on two sides of the first pressure piston and is respectively communicated with the second pressure cavity and a first connector, a first pressure spring is arranged between the first pressure piston and the first connector and in the first pressure cavity, and the first pressure spring is used for generating elastic force for preventing the first pressure piston from moving towards the gas passing groove;

6. The air ring assembly of any of claims 1-5, wherein: the paper suction module comprises a paper suction power shell, a hollow paper suction inner cavity is formed in the paper suction power shell, an air guide groove is formed in the paper suction inner cavity, and one end of the paper suction inner cavity is communicated with the air suction hole through a connecting pipe;

7. The air ring assembly of claim 6, wherein: one end of the inner cavity of the paper suction is communicated with a filter head arranged in the air suction hole through a connecting pipe, a first filter screen is arranged in the filter head, and the first filter screen is used for preventing paper scraps from entering the connecting pipe;

8. The utility model provides a wastepaper finishing device which characterized by: use of a gas ring assembly according to any of claims 1 to 7.

9. The wastepaper finishing apparatus according to claim 8, wherein: the paper cutting machine further comprises a rack, wherein side plates, a top plate and a waste paper box are fixed on the rack, the top plate and a blade are assembled in a sliding mode, and the blade is used for cutting paper or plates; the top plate is provided with an air cylinder, and a telescopic shaft of the air cylinder penetrates through the top plate and then is assembled and fixed with the pressing plate; the four side plates are respectively assembled with the top plate in a sealing mode, so that a sealing channel is formed by the side plates and the machine frame in a surrounding mode, and the waste paper box is installed in the four side plates; the waste paper box is hermetically assembled with the side plate through the air ring assembly;

10. The wastepaper finishing apparatus according to claim 9, wherein: the bottom of the waste paper box is provided with a base and a supporting block, the base is provided with a matching bulge and a supporting leg, the supporting block and the supporting rod can be assembled in an axial sliding mode, and the top of the supporting rod penetrates through the supporting block and then is assembled and fixed with a nut; the bottom of the support rod penetrates through the support block and then is assembled and fixed with the universal wheel, a limiting nut is fixed on the part of the support rod between the universal wheel and the support block, and a damping spring is arranged on the part of the support rod between the limiting nut and the support block;