CN110565429B - Papermaking drying device with air hood - Google Patents

Papermaking drying device with air hood Download PDF

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Publication number
CN110565429B
CN110565429B CN201910819902.0A CN201910819902A CN110565429B CN 110565429 B CN110565429 B CN 110565429B CN 201910819902 A CN201910819902 A CN 201910819902A CN 110565429 B CN110565429 B CN 110565429B
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Prior art keywords
groove
shell
gear
clamping
driving roller
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CN201910819902.0A
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CN110565429A (en
Inventor
曹立伟
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Weida care products (Guangdong) Co.,Ltd.
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Weida Care Products Guangdong Co ltd
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Priority to CN201910819902.0A priority Critical patent/CN110565429B/en
Publication of CN110565429A publication Critical patent/CN110565429A/en
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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00Dryer section of machines for making continuous webs of paper
    • D21F5/18Drying webs by hot air
    • D21F5/185Supporting webs in hot air dryers
    • D21F5/187Supporting webs in hot air dryers by air jets

Abstract

The invention discloses a papermaking drying device with an air hood, which comprises a shell and an exhaust pipe, wherein a drying chamber is arranged in the shell, the top of the shell, which is close to the drying chamber, is provided with an air hood chamber, the exhaust pipe is positioned at the top of the shell, the exhaust pipe is communicated with the air hood chamber, a first driving roller is rotatably connected above the drying chamber, a second driving roller is rotatably connected below the drying chamber, which is close to the first driving roller, a feeding hole is formed in the middle of one side of the shorter side of the shell, a discharging hole is formed in one side of the shell, which is far away from the feeding hole, and a first gear is fixed on the outer side of the shell of the first driving roller. This take papermaking drying device of gas hood is provided with first driving roller and second driving roller, and the paper drives simultaneously through first driving roller and second driving roller, makes the paper extrude the paper through first driving roller and second driving roller at the stoving in-process, avoids the paper to produce the fold.

Description

Papermaking drying device with air hood
Technical Field
The invention relates to the technical field of papermaking, in particular to a papermaking drying device with an air hood.
Background
The paper is made of plant fiber and can be folded at will to be used as a writing sheet, the paper is a writing and printing carrier and can also be used for other purposes such as packaging, sanitation and the like, and in the paper making process, the paper needs to be dried, and a paper making drying device is needed.
Although the types and the number of the conventional papermaking drying devices with air hoods are very large, the conventional papermaking drying devices with air hoods still have certain problems, and the use of the papermaking drying devices with air hoods brings certain inconvenience.
Present take papermaking drying device of gas cover when using, dry when carrying out the transmission to the paper through the driving roller, later extrude, avoid the paper to produce the fold, nevertheless at the stoving in-process, the paper has taken place to warp, extrude after the stoving and make the paper produce the fold easily to inconvenient clearing up driving roller surface impurity, make the driving roller in the use adhere to impurity, later cause the influence to the paper, reduce the production quality of paper, inconvenient use.
Disclosure of Invention
The invention aims to provide a papermaking drying device with an air hood, which solves the problems that when the existing papermaking drying device with the air hood provided by the background art is used, paper is dried while being driven by a driving roller and then extruded to avoid the paper from wrinkling, but the paper is deformed in the drying process, and the paper is easily wrinkled due to the extrusion after the drying, and impurities on the surface of the driving roller are not conveniently cleaned, so that the driving roller is attached with impurities in the using process, the paper is affected later, the production quality of the paper is reduced, and the paper is not convenient to use.
In order to achieve the purpose, the invention provides the following technical scheme: a papermaking drying device with an air hood comprises a shell and an exhaust pipe, wherein a drying chamber is arranged in the shell, an air hood chamber is arranged at the top of the shell close to the drying chamber, wherein,
the exhaust pipe is positioned at the top of the shell and communicated with the gas hood chamber, a first driving roller is rotatably connected above the drying chamber, a second driving roller is rotatably connected below the drying chamber close to the first driving roller, a feed port is formed in the middle of one side of the shorter side of the shell, and a discharge port is formed in one side of the shell far away from the feed port;
the drying device comprises a shell, a first transmission roller, a second transmission roller, a motor, a belt and a hot air groove, wherein the first transmission roller is located on the outer side of the shell and is fixedly provided with a first gear, the second transmission roller is located on the outer side of the shell and is fixedly provided with a second gear, one side, far away from the first gear and the second gear, of the shell is provided with the motor, the motor and the second transmission roller form a transmission structure through the belt, the bottom, close to a drying chamber, of the shell is provided with the hot air groove, one side, close to the drying chamber, of.
Preferably, the housing is divided into a first protection box and a second protection box, the top of the first protection box is rotatably connected with the second protection box, a first fixed block is fixed on two sides of the first protection box close to the second protection box, a second fixed block is fixed on one side of the second protection box close to the first fixed block, an opening is penetrated through the middle part of the first fixed block, one side of the second fixed block close to the opening is provided with a mounting groove, the two sides of the bottom of the second fixed block close to the mounting groove are provided with clamping grooves, a fixed rod penetrates through the opening, a clamping block is fixed on one side of the fixed rod close to the clamping groove, a stop lever is fixed at the top of the fixed lever, ejector rod grooves are arranged at two sides of the first fixed block close to the stop lever, a groove is formed in one side, close to the ejector rod groove, of the stop rod, a first spring is installed inside the ejector rod groove, and an ejector rod is fixed on the side, close to the opening side of the ejector rod groove, of the first spring.
Preferably, the draw-in groove is L shape, and the inside dimension of draw-in groove is identical with the outside dimension of fixture block to the draw-in groove passes through interference fit with the fixture block and constitutes card and structure, and the distance of draw-in groove bottom to first fixed block top equals with the length of fixed rod moreover.
Preferably, one side of the ejector rod, which is far away from the first spring, is a spherical surface, the size of the spherical surface of the ejector rod is matched with that of the concave surface of the groove, and the ejector rod and the first fixing block form an elastic structure through the first spring.
Preferably, the outer diameter of the first gear is equal to the outer diameter of the second gear, the tooth pitches of the first gear and the second gear are equal, and the first gear and the second gear form a meshing structure.
Preferably, the middle part of the air outlet groove is provided with a ball valve groove, a ball valve is arranged in the ball valve groove, and the top of the ball valve is connected with a second spring.
Preferably, the outer diameter of the ball valve is smaller than the inner diameter of the ball valve groove, the outer diameter of the ball valve is larger than the inner diameter of the gas outlet groove, the outer diameter of the ball valve is larger than the inner diameter of the second spring, and the outer diameter of the second spring is larger than the inner diameter of the gas outlet groove.
Compared with the prior art, the invention has the beneficial effects that: this take papermaking drying device of gas hood:
1. the paper drying machine is provided with a first driving roller and a second driving roller, and paper is driven by the first driving roller and the second driving roller simultaneously, so that the paper is extruded by the first driving roller and the second driving roller in the drying process, and the paper is prevented from being wrinkled;
2. the paper feeding device is provided with a first gear and a second gear, when the motor drives the second transmission roller to rotate through a belt, the second transmission roller drives the second gear to rotate, the second gear drives the first gear to rotate, the rotating speeds of the first transmission roller and the second transmission roller are equal, and damage to paper due to relative rotation of the first transmission roller and the second transmission roller is avoided;
3. the paper cleaning machine is provided with a first protection box and a second protection box, wherein the shell is divided into the first protection box and the second protection box, and the first protection box and the second protection box are opened during use to clean the surfaces of the first transmission roller and the second transmission roller, so that the influence of impurities attached to the first transmission roller and the second transmission roller on the quality of paper is avoided;
4. the clamping groove and the clamping block are arranged, when the first protection box and the second protection box are closed, the fixed rod is inserted to penetrate through the opening and then enter the inside of the mounting groove, the fixed rod drives the clamping block to enter the inside of the clamping groove, then the fixed rod is rotated to drive the clamping block to enter the transverse groove of the clamping groove, and the clamping structure formed by the clamping block and the clamping groove is convenient for fixedly connecting the first fixed block and the second fixed block, so that the first protection box and the second protection box are widely connected;
5. the ball valve is arranged, when the air pressure of the air outlet groove is increased, the air pressure pushes the ball valve to move upwards, the second spring is compressed, the ball valve groove is communicated with the air outlet groove, hot air is sprayed out through the air outlet groove, and the air pressure in the air outlet groove can circulate after reaching a certain value through the ball valve and the second spring, so that the hot air is distributed more uniformly;
6. be provided with the ejector pin, when rotating the pin, make the pin drive the dead lever and rotate, make the pin support the sphere of ejector pin, make the ejector pin by the inside in ejector pin groove of impressing, make the compression of first spring, when the dead lever drives the transverse groove that the fixture block got into the draw-in groove, the ejector pin groove just aligns with the recess, make first spring promote the ejector pin and support the recess, avoid the dead lever to continue to rotate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the gear transmission of the present invention;
FIG. 3 is a schematic view of the belt drive of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1A;
fig. 5 is a schematic view of a connection structure of the first fixing block and the second fixing block according to the present invention.
In the figure: 1. a housing; 101. a first protective case; 102. a second protective case; 103. a first fixed block; 104. a second fixed block; 105. an opening; 106. mounting grooves; 107. a card slot; 108. fixing the rod; 109. a clamping block; 110. a stop lever; 111. a jack rod groove; 112. a groove; 113. a first spring; 114. a top rod; 2. a drying chamber; 3. an air hood chamber; 4. an exhaust pipe; 5. a first drive roller; 6. a second driving roller; 7. a feed inlet; 8. a discharge port; 9. a first gear; 10. a second gear; 11. a motor; 12. a belt; 13. a hot air tank; 14. an air outlet groove; 1401. a ball valve spool; 1402. a ball valve; 1403. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a papermaking drying device with an air hood comprises a shell 1, a drying chamber 2, an air hood chamber 3, an exhaust pipe 4, a first driving roller 5, a second driving roller 6, a feeding hole 7, a discharging hole 8, a first gear 9, a second gear 10, a motor 11, a belt 12, a hot air tank 13 and an air outlet tank 14, wherein the drying chamber 2 is arranged in the shell 1, the shell 1 is divided into a first protection box 101 and a second protection box 102, the top of the first protection box 101 is rotatably connected with the second protection box 102, first fixing blocks 103 are fixed on two sides of the first protection box 101 close to the second protection box 102, a second fixing block 104 is fixed on one side of the second protection box 102 close to the first fixing block 103, an opening 105 penetrates through the middle of the first fixing block 103, a mounting groove 106 is arranged on one side of the second fixing block 104 close to the opening 105, clamping grooves 107 are arranged on two sides of the bottom of the second fixing block 104 close to the mounting groove 106, a fixing rod 108 penetrates through the opening 105, a clamping block 109 is fixed on one side of the fixing rod 108 close to the clamping groove 107, a stop lever 110 is fixed on the top of the fixing rod 108, ejector rod grooves 111 are formed in two sides of the first fixing block 103 close to the stop lever 110, a groove 112 is formed in one side of the stop lever 110 close to the ejector rod grooves 111, a first spring 113 is installed inside the ejector rod grooves 111, an ejector rod 114 is fixed on the opening side of the first spring 113 close to the ejector rod grooves 111, the clamping groove 107 is L-shaped, the inner size of the clamping groove 107 is matched with the outer size of the clamping block 109, the clamping groove 107 and the clamping block 109 form a clamp and a structure through interference fit, the distance from the bottom of the clamping groove 107 to the top of the first fixing block 103 is equal to the length of the fixing rod 108, after the first protection box 101 and the second protection box 102 are closed, the fixing rod 108 is inserted, so that the fixing rod 108 penetrates through the opening 105, the fixing rod 108 drives the fixture block 109 to enter the inside of the slot 107, then the fixing rod 108 is rotated to make the fixing rod 108 drive the fixture block 109 to enter the transverse groove of the slot 107, the first fixing block 103 and the second fixing block 104 are conveniently and fixedly connected through the clamping structure formed by the fixture block 109 and the slot 107, one side of the ejector rod 114 away from the first spring 113 is spherical, the size of the spherical surface of the ejector rod 114 is matched with that of the concave surface of the groove 112, the ejector rod 114 forms an elastic structure with the first fixing block 103 through the first spring 113, when the stopper rod 110 is rotated to make the stopper rod 110 drive the fixing rod 108 to rotate, the stopper rod 110 is abutted against the spherical surface of the ejector rod 114, the ejector rod 114 is pressed into the inside of the ejector rod groove 111 to compress the first spring 113, when the fixing rod 108 drives the fixture block 109 to enter the transverse groove of the slot 107, the ejector rod groove 111 is exactly aligned with the groove 112 to, the fixing rod 108 is prevented from continuing to rotate, the top of the casing 1 close to the drying chamber 2 is provided with an air hood chamber 3, wherein,
the exhaust pipe 4 is positioned at the top of the shell 1, the exhaust pipe 4 is communicated with the gas hood chamber 3, a first driving roller 5 is rotatably connected above the drying chamber 2, a second driving roller 6 is rotatably connected below the drying chamber 2 close to the first driving roller 5, a feed port 7 is formed in the middle of one side of the shorter side of the shell 1, and a discharge port 8 is formed in one side of the shell 1 far away from the feed port 7;
the first transmission roller 5 is positioned on the outer side of the shell 1 and is fixed with a first gear 9, the outer diameter of the first gear 9 is equal to the outer diameter of a second gear 10, the tooth pitch of the first gear 9 is equal to that of the second gear 10, the first gear 9 and the second gear 10 form an engagement structure, when a motor 11 drives the second transmission roller 6 to rotate through a belt 12, the second transmission roller 6 drives the second gear 10 to rotate, the second gear 10 drives the first gear 9 to rotate, the rotating speed of the first transmission roller 5 is equal to that of the second transmission roller 6, the damage to paper caused by the relative rotation of the first transmission roller 5 and the second transmission roller 6 is avoided, the second gear 10 is fixed on the outer side of the shell 1, the motor 11 is installed on one side of the shell 1 far away from the first gear 9 and the second gear 10, and the motor 11 forms a transmission structure with the second transmission roller 6 through the belt 12, the bottom of the shell 1 close to the drying chamber 2 is provided with a hot air groove 13, one side of the shell 1 close to the drying chamber 2 is provided with an air outlet groove 14, the middle part of the air outlet groove 14 is provided with a ball valve 1401, the ball valve 1401 is internally provided with a ball valve 1402, the top of the ball valve 1402 is connected with a second spring 1403, the outer diameter of the ball valve 1402 is smaller than the inner diameter of the ball valve 1401, the outer diameter of the ball valve 1402 is larger than the inner diameter of the air outlet groove 14, the outer diameter of the ball valve 1402 is larger than the inner diameter of the second spring 1403, the outer diameter of the second spring 1403 is larger than the inner diameter of the air outlet groove 14, when the air pressure of the air outlet groove 14 is increased, the ball valve 1402 pushes the ball valve 1402 to move upwards, the second spring 1403 compresses, the ball valve 1401 is communicated with the air outlet groove 14, hot air is sprayed out through the air outlet groove 14, and, the hot air is distributed more evenly, and the air outlet grooves 14 are communicated with the hot air grooves 13.
The working principle is as follows: when the papermaking drying device with the air hood is used, firstly, the stop lever 110 is rotated, the stop lever 110 drives the fixed lever 108 to rotate, the fixed lever 108 drives the fixture block 109 to move out of the transverse groove of the clamping groove 107, then the fixed lever 108 is taken out, the first protection box 101 and the second protection box 102 are opened through rotation, the first driving roller 5 and the second driving roller 6 are exposed, impurities on the first driving roller 5 and the second driving roller 6 are cleaned, then the first protection box 101 and the second protection box 102 are closed, the fixed lever 108 is inserted, the fixed lever 108 penetrates through the opening 105 and then enters the inside of the mounting groove 106, the fixed lever 108 drives the fixture block 109 to enter the inside of the clamping groove 107, then the fixed lever 108 is rotated, the fixed lever 108 drives the fixture block 109 to enter the transverse groove of the clamping groove 107, and the first fixing block 103 and the second fixing block 104 are fixedly connected through the clamping structure formed by the fixture block 109 and the clamping groove 107, when the stop lever 110 is rotated to make the stop lever 110 drive the fixing lever 108 to rotate, the stop lever 110 is abutted against the spherical surface of the ejector rod 114, the ejector rod 114 is pressed into the ejector rod groove 111, the first spring 113 is compressed, when the fixing lever 108 drives the fixture block 109 to enter the transverse groove of the clamping groove 107, the ejector rod groove 111 is exactly aligned with the groove 112, the first spring 113 pushes the ejector rod 114 to abut against the groove 112, the fixing lever 108 is prevented from continuing to rotate, then the paper enters between the first driving roller 5 and the second driving roller 6 through the feed inlet 7, the motor 11 is started at the same time, the motor 11 drives the second driving roller 6 to rotate through the belt 12, the second driving roller 6 drives the second gear 10 to rotate, the second gear 10 drives the first gear 9 to rotate, the first gear 9 drives the first driving roller 5 to rotate, the paper is driven, the hot air flows into the air outlet groove 14 through the hot air groove 13, and the air pressure of the air outlet groove 14, the air pressure pushes the ball valve 1402 to move upward, the second spring 1403 compresses, and at the same time, the ball valve slot 1401 is communicated with the air outlet slot 14, so that hot air is ejected through the air outlet slot 14 to dry the paper, and then water vapor and hot air are sucked into the exhaust pipe 4 through the hood chamber 3 and exhausted through the exhaust pipe 4, which is not described in detail in this specification and is known in the prior art by those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (5)

1. The utility model provides a take papermaking drying device of gas hood, includes shell (1) and blast pipe (4), its characterized in that: a drying chamber (2) is arranged in the shell (1), an air hood chamber (3) is arranged at the top of the shell (1) close to the drying chamber (2), wherein,
the exhaust pipe (4) is positioned at the top of the shell (1), the exhaust pipe (4) is communicated with the air hood chamber (3), a first driving roller (5) is rotatably connected above the drying chamber (2), a second driving roller (6) is rotatably connected below the drying chamber (2) close to the first driving roller (5), a feeding hole (7) is formed in the middle of one side of the shorter side of the shell (1), and a discharging hole (8) is formed in one side of the shell (1) far away from the feeding hole (7);
the shell (1) comprises a first protection box (101), a second protection box (102), a first fixing block (103), a second fixing block (104), an opening (105), a mounting groove (106), a clamping groove (107), a fixing rod (108), a clamping block (109), a stop lever (110), a push rod groove (111), a groove (112), a first spring (113) and a push rod (114), the shell (1) is divided into the first protection box (101) and the second protection box (102), the top of the first protection box (101) is rotatably connected with the second protection box (102), the first fixing block (103) is fixed on two sides of the first protection box (101) close to the second protection box (102), the second fixing block (104) is fixed on one side of the second protection box (102) close to the first fixing block (103), the opening (105) penetrates through the middle of the first fixing block (103), and the mounting groove (106) is formed on one side of the second protection box (104) close to the opening (105), clamping grooves (107) are formed in two sides of the bottom, close to the mounting groove (106), of the second fixing block (104), a fixing rod (108) penetrates through the opening (105), a clamping block (109) is fixed on one side, close to the clamping grooves (107), of the fixing rod (108), a blocking rod (110) is fixed at the top of the fixing rod (108), ejector rod grooves (111) are formed in two sides, close to the blocking rod (110), of the first fixing block (103), a groove (112) is formed in one side, close to the ejector rod grooves (111), of the blocking rod (110), a first spring (113) is installed in the ejector rod grooves (111), and an ejector rod (114) is fixed on the side, close to the opening of the ejector rod grooves (111), of the first spring (113);
a first gear (9) is fixed on the outer side of the first transmission roller (5) positioned on the shell (1), a second gear (10) is fixed on the outer side of the second transmission roller (6) positioned on the shell (1), a motor (11) is installed on one side, away from the first gear (9) and the second gear (10), of the shell (1), the motor (11) and the second transmission roller (6) form a transmission structure through a belt (12), a hot air groove (13) is formed in the bottom, close to the drying chamber (2), of the shell (1), an air outlet groove (14) is formed in one side, close to the drying chamber (2), of the shell (1), and the air outlet groove (14) is communicated with the hot air groove (13);
the gas outlet groove (14) comprises a ball valve groove (1401), a ball valve (1402) and a second spring (1403), the ball valve groove (1401) is formed in the middle of the gas outlet groove (14), the ball valve (1402) is arranged inside the ball valve groove (1401), and the top of the ball valve (1402) is connected with the second spring (1403).
2. The papermaking drying apparatus with a gas hood according to claim 1, characterized in that: the clamping groove (107) is L-shaped, the inner size of the clamping groove (107) is matched with the outer size of the clamping block (109), the clamping groove (107) and the clamping block (109) form a clamping structure in an interference fit mode, and the distance from the bottom of the clamping groove (107) to the top of the first fixing block (103) is equal to the length of the fixing rod (108); one side of the ejector rod (114) far away from the first spring (113) is spherical, the size of the spherical surface of the ejector rod (114) is matched with that of the concave surface of the groove (112), and the ejector rod (114) and the first fixing block (103) form an elastic structure through the first spring (113).
3. The papermaking drying apparatus with a gas hood according to claim 1, characterized in that: the outer diameter of the first gear (9) is equal to that of the second gear (10), the tooth pitches of the first gear (9) and the second gear (10) are equal, and the first gear (9) and the second gear (10) form a meshing structure.
4. The papermaking drying apparatus with a gas hood according to claim 1, characterized in that: the outer diameter of the ball valve (1402) is smaller than the inner diameter of the ball valve groove (1401), the outer diameter of the ball valve (1402) is larger than the inner diameter of the gas outlet groove (14), the outer diameter of the ball valve (1402) is larger than the inner diameter of the second spring (1403), and the outer diameter of the second spring (1403) is larger than the inner diameter of the gas outlet groove (14).
5. The method of using a gas-shrouded papermaking dryer apparatus according to claim 1, wherein: firstly, a stop lever (110) is rotated, the stop lever (110) drives a fixed lever (108) to rotate, the fixed lever (108) drives a clamping block (109) to move out of a transverse groove of a clamping groove (107), then the fixed lever (108) is taken out, a first protection box (101) and a second protection box (102) are opened through rotation, a first driving roller (5) and a second driving roller (6) are exposed, impurities on the first driving roller (5) and the second driving roller (6) are cleaned, then the first protection box (101) and the second protection box (102) are closed, the fixed lever (108) is inserted, the fixed lever (108) penetrates through an opening (105) and then enters into an installation groove (106), the fixed lever (108) drives the clamping block (109) to enter into the clamping groove (107), then the fixed lever (108) is rotated, and the fixed lever (108) drives the clamping block (109) to enter into the transverse groove of the clamping groove (107), through a clamping structure formed by a clamping block (109) and a clamping groove (107), a first fixing block (103) is fixedly connected with a second fixing block (104), when a stop lever (110) is rotated, the stop lever (110) drives a fixing rod (108) to rotate, the stop lever (110) is enabled to abut against the spherical surface of a push rod (114), the push rod (114) is enabled to be pressed into the inner part of a push rod groove (111), a first spring (113) is enabled to be compressed, when the fixing rod (108) drives the clamping block (109) to enter a transverse groove of the clamping groove (107), the push rod groove (111) is just aligned with a groove (112), the first spring (113) is enabled to push the push rod (114) to abut against the groove (112), the fixing rod (108) is prevented from continuously rotating, then paper enters a space between a first driving roller (5) and a second driving roller (6) through a feeding port (7), a motor (11) is started simultaneously, and the motor (11) drives the second roller (6) to rotate through a belt (, make second driving roller (6) drive second gear (10) and rotate, make second gear (10) drive first gear (9) and rotate, first gear (9) drive first driving roller (5) and rotate, carry out the transmission to the paper, hot-air flows into air outlet groove (14) through hot air groove (13), make air outlet groove (14) atmospheric pressure increase, atmospheric pressure promotes ball valve (1402) rebound, second spring (1403) compression, make ball valve groove (1401) and air outlet groove (14) intercommunication simultaneously, make hot-air spout through air outlet groove (14), dry the paper, later vapor and steam are inhaled blast pipe (4) through air hood chamber (3), discharge through blast pipe (4).
CN201910819902.0A 2019-08-31 2019-08-31 Papermaking drying device with air hood Active CN110565429B (en)

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CN110565429B true CN110565429B (en) 2021-06-04

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