CN116117919A

CN116117919A - Paper products drilling equipment

Info

Publication number: CN116117919A
Application number: CN202310249178.9A
Authority: CN
Inventors: 徐学文
Original assignee: Yingtan Hengxiang Packaging Co ltd
Current assignee: Yingtan Hengxiang Packaging Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-05-16

Abstract

The invention relates to the field of paper product processing, in particular to paper product punching equipment, which comprises: the punching device is arranged at the top of the base; the drill bit mechanism is used for punching the paper product and is arranged on one side of the bottom of the punching equipment; through setting up drill bit mechanism, when punching the operation to the paper products, drilling equipment drives the mount pad and punches the drill bit body and descend to punch the paper products, when punching the drill bit body and descend, drive rack and clamp plate and rise, compress tightly fixedly to the paper products, simultaneously, the waste material gets into the inner chamber of drill bit body, drive crushing head through the motor and rotate, crushing head drives the connecting rod in step and screw conveying blade rotates, promote the waste material, the guide of rethread toper guide casing carries the waste material to the top of roof, grind the waste material through the cooperation with crushing head.

Description

Paper products drilling equipment

Technical Field

The invention relates to the field of paper product processing, in particular to paper product punching equipment.

Background

Paper product: the paper and the paperboard are used as raw materials, and the production activity of further processing the paper and the paperboard into paper products is that: the cost performance is high, and the elasticity, the toughness and the like are good;

at present, punching equipment is needed in the paper product processing in the prior art, but the punching equipment used in the paper product in the prior art has the following problems:

1. paper product processing waste remains in the drill bit during punching, and drill rod fracture is easily caused when excessive accumulation occurs;

2. the cleaning of waste materials inside the drill rod is complicated, and frequent cleaning is required due to limited space inside the drill rod.

Accordingly, a paper product perforating apparatus has been proposed to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to solve the problems that paper product processing waste remains in a drill bit during punching, a drill rod is easy to break when excessive stacking is performed, and waste in the drill rod is complicated during cleaning, and frequent cleaning is required due to limited space in the drill rod.

The invention achieves the above object by the following technical scheme, a paper product punching device, comprising: the punching device is arranged at the top of the base; the drill bit mechanism is used for punching the paper product and is arranged on one side of the bottom of the punching equipment; the drill bit mechanism comprises a punching assembly and a negative pressure adsorption mechanism, wherein the punching assembly for punching paper products is arranged at the transmission end of punching equipment, and the negative pressure adsorption mechanism for cleaning waste paper in the punching assembly is arranged on the surface of the punching assembly; the fixed placing mechanism is used for placing and fixing paper products, and the fixed placing mechanism is sleeved at the bottom of the punching equipment.

Preferably, the punching assembly comprises a mounting seat mounted at the driving end of the punching device, the bottom of the mounting seat is provided with a punching bit body, the bottom of the surface of the punching bit body is provided with four first strip-shaped holes, the inner cavity of the punching bit body is provided with a conical guide shell, the top of the conical guide shell is communicated with a top plate, the inner cavity of the punching bit body is provided with a motor at the top of the top plate, the output end of the motor is welded with a crushing head, the bottom of the crushing head is fixedly connected with a connecting rod, the bottom of the connecting rod sequentially penetrates through the top plate and the conical guide shell and extends to the bottom of the inner cavity of the punching bit body, the surface of the connecting rod is fixedly provided with a spiral conveying blade, and waste materials generated during punching of paper products are guided to rise and crushed.

Preferably, the first bearing frame is installed at the surface of drill bit body and the top that is located first bar hole, one side fixedly connected with lantern ring that the mount pad was kept away from to first bearing frame, the equal fixedly connected with fixed plate in both sides of lantern ring, the surface sliding mounting of fixed plate has the slide bar, the top cover on slide bar surface is equipped with first reset spring, the bottom fixedly connected with rack of slide bar, the bottom fixedly connected with clamp plate of rack can compress tightly when punching to the paper product, avoids the paper product to appear shifting, influences the condition that the precision of punching appears.

Preferably, the inner ring is installed to the bottom of drill bit body inner chamber, equal fixedly connected with links the piece all around of inner ring surface, the one end that links the piece to keep away from the inner ring runs through first bar hole and extends to the outside of drill bit body, link piece and first bar hole sliding connection, it is equipped with the second bearing frame to link the outside one end cover of drill bit body to lie in the piece, the equal fixedly connected with horizontal pole in both sides of second bearing frame, the one end that the second bearing frame was kept away from to the horizontal pole is installed one-way bearing, the gear is installed to one side of one-way bearing, the gear is connected with the rack meshing, can cooperate with the gear when the rack descends, promotes the purpose of waste material of drill bit body inner chamber bottom.

Preferably, the installation cavity has all been seted up to the inside wall that links piece and inner ring, the telescopic link is installed to one side of installation cavity inner chamber, the surface cover of telescopic link is equipped with second reset spring, the flexible end fixedly connected with hoisting block of telescopic link, one side of hoisting block runs through the installation cavity and extends to the inboard of inner ring, can not influence the purpose that the waste material promoted when rising.

Preferably, the negative pressure adsorption mechanism comprises two second strip-shaped holes formed in the tops of two sides of the perforating bit body, an air extraction shell is sleeved on the surface of the perforating bit body and located on the outer side of the second strip-shaped holes, a hose is communicated with one side of the bottom of the air extraction shell, waste materials after the inner cavity of the perforating bit body is ground can be extracted, and the situation that the waste materials remain inside the perforating bit for a long time to cause breakage of the perforating bit body is avoided.

Preferably, one side of the punching equipment is provided with a material collecting box, the inner cavity of the material collecting box is provided with a dust-proof plate, the top of the inner cavity of the material collecting box, which is positioned at the dust-proof plate, is provided with an air pump, the air outlet end of the air pump penetrates through the material collecting box and extends to the outside of the material collecting box, and one end of the hose, which is far away from the air extraction shell, is communicated with one side of the material collecting box.

Preferably, the rotary sealing piece is installed on the inner side wall of the air extraction shell, and one side, far away from the air extraction shell, of the rotary sealing piece is connected with the perforating bit body.

Preferably, the fixed mechanism of placing is including setting up in the board of placing at base top, the equal slidable mounting in both sides at board top of placing has L shape limiting plate, the slide opening has all been seted up to the front and back both sides on L shape limiting plate surface, the inner chamber slidable mounting of slide opening has the bolt, the bottom of bolt runs through the board of placing and with place board threaded connection, can fix the paper product and place, avoids the paper product to appear shifting when punching, influences the condition appearance of punching precision.

Preferably, a sliding shell is arranged on one side of the placing plate, the sliding shell is sleeved on the surface of the punching equipment and is in sliding connection with the punching equipment, and a fastener is arranged on one side of the sliding shell.

The beneficial effects of the invention are as follows:

1. through setting up the drill bit mechanism, when carrying out the operation of punching to the paper products, the drilling equipment drives mount pad and drill bit body decline and punches to the paper products, when the drill bit body of punching descends, drive rack and clamp plate and rise, compress tightly fixedly to the paper products, simultaneously, the waste material gets into the inner chamber of drill bit body, drive crushing head through the motor and rotate, crushing head drives connecting rod and screw conveyor blade in step and rotates, promote the waste material, the guide of rethread toper guide casing carries the waste material to the top of roof, grind the waste material through the cooperation with crushing head, when grinding, produce the negative pressure through negative pressure adsorption mechanism and discharge the waste material into the inner chamber of drill bit body, the purpose that can automatic clear up the waste material has been played, can avoid the waste material to remain in the inside of drill bit body of punching simultaneously, the condition that leads to the drilling rod fracture easily when piling up too much appears;

2. through setting up negative pressure adsorption mechanism, when carrying out negative pressure absorption to the waste material after grinding in the punching bit body, the air pump absorbs the air in collection box inner chamber and discharges, make the inside of collection box produce negative pressure suction, suction is transmitted suction to the inside of the casing of bleeding through the intercommunication of hose and casing of bleeding, and transmit suction to the inner chamber of punching bit body through the intercommunication with the second bar hole, waste material after grinding is extracted, the purpose that waste material inside the punching bit body can be cleared up to the automation, need not frequent clearance of staff has been played;

3. through setting up the subassembly that punches, when the drill bit body punches and accomplishes the rising, the elasticity that the rack was through first reset spring is automatic to be rebounded, be connected through the meshing of rack and gear and drive the gear and upwards move, simultaneously, the gear drives the second bearing frame in step, even piece and inner ring upwards move, drive the lifting block and upwards move when moving including the ring upwards, carry out the lifting to the waste material of drill bit body inner chamber bottom, avoid the waste material to fall out the inner chamber of drill bit body, have played and can carry out the lifting to the remaining waste material of drill bit body inner chamber bottom, avoid the waste material to fall out the inner chamber of drill bit body, influence peripheral operational environment's condition to appear.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a drill mechanism according to the present invention;

FIG. 3 is a schematic cross-sectional view of a drill bit mechanism of the present invention;

FIG. 4 is a schematic view of a first bearing seat according to the present invention;

FIG. 5 is a schematic cross-sectional view of an inner ring of the present invention;

FIG. 6 is an enlarged view of area A of FIG. 5;

FIG. 7 is a schematic cross-sectional view of a drill bit body according to the present invention;

FIG. 8 is a schematic cross-sectional view of the bin of the invention;

fig. 9 is a schematic structural view of the fixed placement mechanism of the present invention.

In the figure: 1. a base; 2. a punching device; 3. a drill bit mechanism; 31. a punching assembly; 311. a mounting base; 312. a drill bit body; 313. a first bar-shaped hole; 314. a tapered guide housing; 315. a top plate; 316. a motor; 317. a crushing head; 318. a connecting rod; 319. spiral conveying blades; 3101. a first bearing seat; 3102. a collar; 3103. a fixing plate; 3104. a slide bar; 3105. a first return spring; 3106. a rack; 3107. a pressing plate; 3108. an inner ring; 3109. connecting blocks; 3110. a second bearing seat; 3111. a cross bar; 3112. a one-way bearing; 3113. a gear; 3114. a mounting cavity; 3115. a telescopic rod; 3116. a second return spring; 3117. a lifting block; 32. a negative pressure adsorption mechanism; 321. a second bar-shaped hole; 322. an air extraction shell; 323. rotating the seal; 324. a material collecting box; 325. a dust-proof plate; 326. an air pump; 327. a hose; 4. a fixed placement mechanism; 41. placing a plate; 42. an L-shaped limiting plate; 43. a slide hole; 44. a bolt; 45. a sliding housing; 46. a fastener.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The specific implementation method comprises the following steps: as shown in fig. 1-9, a paper product perforation device comprising: the base 1, the top of the base 1 is provided with punching equipment 2; the drill mechanism 3 is used for punching paper products, and the drill mechanism 3 for punching paper products is arranged on one side of the bottom of the punching equipment 2; the drill mechanism 3 comprises a punching assembly 31 and a negative pressure adsorption mechanism 32, wherein the punching assembly 31 for punching paper products is arranged at the transmission end of the punching equipment 2, and the negative pressure adsorption mechanism 32 for cleaning waste paper in the punching assembly 31 is arranged on the surface of the punching assembly 31; the fixed placement mechanism 4 is used for placing and fixing paper products, the fixed placement mechanism 4 is sleeved at the bottom of the punching equipment 2, four bolts 44 are loosened in a rotating way, two L-shaped limiting plates 42 are adjusted, the paper products are fixed, and after the fixing is finished, the bolts 44 are rotated to compress the L-shaped limiting plates 42 again; the fixed placement mechanism 4 comprises a placement plate 41 arranged at the top of the base 1, wherein both sides of the top of the placement plate 41 are slidably provided with L-shaped limiting plates 42, both front and rear sides of the surface of the L-shaped limiting plates 42 are provided with sliding holes 43, the inner cavities of the sliding holes 43 are slidably provided with bolts 44, and the bottom ends of the bolts 44 penetrate through the placement plate 41 and are in threaded connection with the placement plate 41; a sliding shell 45 is arranged on one side of the placement plate 41, the sliding shell 45 is sleeved on the surface of the punching device 2 and is in sliding connection with the punching device 2, a fastener 46 is arranged on one side of the sliding shell 45, the fastener 46 is pulled to loosen the sliding shell 45, the sliding shell 45 slides on the surface of the punching device 2, and the height of the placement plate 41 is lifted.

As shown in fig. 1-9, the punching assembly 31 comprises a mounting seat 311 mounted at the driving end of the punching device 2, the bottom of the mounting seat 311 is provided with a punching bit body 312, the bottom of the surface of the punching bit body 312 is provided with four first strip-shaped holes 313, the inner cavity of the punching bit body 312 is provided with a conical guide shell 314, the top of the conical guide shell 314 is communicated with a top plate 315, the inner cavity of the punching bit body 312 and the top of the top plate 315 are provided with a motor 316, the output end of the motor 316 is welded with a crushing head 317, the bottom of the crushing head 317 is fixedly connected with a connecting rod 318, the bottom end of the connecting rod 318 sequentially penetrates through the top plate 315 and the conical guide shell 314 and extends to the bottom of the inner cavity of the punching bit body 312, the surface of the connecting rod 318 is fixedly provided with a spiral conveying blade 319, the punching device 2 drives the mounting seat 311 and the punching bit body 312 to descend so as to punch paper products, the rack 6 and the pressing plate 3107 are driven to ascend when the punching bit body 312 is in punching descending so as to press and fix the paper products, simultaneously, the waste materials enter the inner cavity of the punching bit body 312, the motor 316 is driven by the motor 316 to rotate the crushing head 317, the crushing head 318 is synchronously drives the conveying the connecting rod to rotate, and the conveying blade to the spiral conveying blade to the bottom of the connecting rod 318 so as to guide the waste materials to be conveyed to the top of the grinding head 315 through the conical shell 315; the surface of the perforating bit body 312 and the top of the first bar-shaped hole 313 are provided with a first bearing seat 3101, one side of the first bearing seat 3101 away from the mounting seat 311 is fixedly connected with a lantern ring 3102, both sides of the lantern ring 3102 are fixedly connected with a fixed plate 3103, the surface of the fixed plate 3103 is provided with a sliding rod 3104 in a sliding manner, the top of the surface of the sliding rod 3104 is sleeved with a first reset spring 3105, the bottom end of the sliding rod 3104 is fixedly connected with a rack 3106, and the bottom end of the rack 3106 is fixedly connected with a pressing plate 3107; an inner ring 3108 is installed at the bottom of an inner cavity of the perforating bit body 312, connecting blocks 3109 are fixedly connected to the periphery of the outer surface of the inner ring 3108, one end of each connecting block 3109, far away from the inner ring 3108, penetrates through a first strip-shaped hole 313 and extends to the outside of the perforating bit body 312, each connecting block 3109 is slidably connected with the corresponding first strip-shaped hole 313, a second bearing seat 3110 is sleeved at one end of each connecting block 3109, which is located outside the perforating bit body 312, a cross rod 3111 is fixedly connected to two sides of each second bearing seat 3110, one end, far away from the second bearing seat 3110, of each cross rod 3112 is provided with a one-way bearing 3113, each gear 3113 is in meshed connection with each rack 3106, when the perforating bit body 312 is completely ascended, each rack 3106 automatically rebounds through elasticity of a first reset spring 3106, each rack 3113 is driven to move upwards through meshed connection of each rack 3116, and meanwhile, each gear 3113 is synchronously driven to move each second bearing 3110, each connecting block 3109 and each inner ring 3108 upwards, and each lifting block 3117 is driven to move upwards when each inner ring 3108 moves upwards, and waste on the bottom of the perforating bit body 312 is lifted; the installation cavity 3114 has all been seted up to the inside wall that links piece 3109 and inner ring 3108, the telescopic link 3115 is installed to one side of installation cavity 3114 inner chamber, telescopic link 3115's surface cover is equipped with second reset spring 3116, telescopic link 3115's flexible end fixedly connected with hoisting block 3117, one side of hoisting block 3117 runs through installation cavity 3114 and extends to the inboard of inner ring 3108, when punching bit body 312 punches the paper products, the waste material rises at the inner chamber of punching bit body 312, waste material rises and pushes up four hoisting blocks 3117 and inwards moves, when moving to the hoisting block 3117 top, the hoisting block 3117 is through telescopic link 3115 and the automatic resilience of elasticity of second reset spring 3116, carry out the lifting with horizontal pole 3111 to the waste material cooperatees.

As shown in fig. 1-9, the negative pressure adsorption mechanism 32 comprises two second bar-shaped holes 321 arranged at the top parts of two sides of the perforating bit body 312, an air extraction shell 322 is sleeved on the surface of the perforating bit body 312 and positioned outside the second bar-shaped holes 321, and one side of the bottom of the air extraction shell 322 is communicated with a hose 327; the punching device 2 is provided with a collecting box 324 on one side, a dust-proof plate 325 is arranged in the inner cavity of the collecting box 324, an air pump 326 is arranged at the top of the dust-proof plate 325, an air outlet end of the air pump 326 penetrates through the collecting box 324 and extends to the outside of the collecting box 324, one end of a hose 327, which is far away from the air suction shell 322, is communicated with one side of the collecting box 324, the air pump 326 sucks air in the inner cavity of the collecting box 324 to be discharged, negative pressure suction is generated in the collecting box 324, the suction is transmitted to the inside of the air suction shell 322 through the communication of the hose 327 and the air suction shell 322, the suction is transmitted to the inner cavity of the punching bit body 312 through the communication of the second bar-shaped hole 321, the ground waste is extracted, and after waste paper is extracted to the inside of the collecting box 324, a hinged movable door on one side of the collecting box 324 is opened to clear the inside of the collecting box 324; the inner side wall of the air extraction shell 322 is provided with a rotary sealing element 323, one side of the rotary sealing element 323 far away from the air extraction shell 322 is connected with the perforating bit body 312 { the rotary sealing belongs to one type of dynamic sealing, the rotary sealing consists of a slip ring made of filled polytetrafluoroethylene and a rubber O-shaped ring providing elasticity, and the rotary sealing is used for sealing the positions of a rod, a shaft, a pin, a rotary joint and the like which are in rotary or swinging motion, and rotary hydraulic rotation exists in various industrial fields such as engineering machinery, construction machinery, automobile equipment and the like. It is a two-way rotary seal ring that can bear the action of pressure on both sides or alternating pressure;

as shown in fig. 1, a mounting plate is fixedly connected to one side of the collecting box 324, which is close to the punching assembly 31, and a guide rail is mounted on one side of the mounting plate, and sliding blocks are fixedly connected to one sides of the sleeve ring 3102 and the air extraction shell 322, and are in sliding connection with the guide rail, so that the air extraction shell 322 and the sleeve ring 3102 are limited, and autorotation of the air extraction shell 322 and the sleeve ring 3102 along with rotation of the punching bit body 312 is avoided.

When the paper product is punched, the punching equipment 2 drives the mounting seat 311 and the punching bit body 312 to descend so as to punch the paper product, the punching bit body 312 is driven to descend, meanwhile, the rack 3106 and the pressing plate 3107 are driven to ascend so as to compress and fix the paper product, meanwhile, waste enters the inner cavity of the punching bit body 312, the grinding head 317 is driven by the motor 316 to rotate, the grinding head 317 synchronously drives the connecting rod 318 and the spiral conveying blade 319 to rotate so as to lift the waste, then the waste is conveyed to the top of the top plate 315 through the guide of the conical guide shell 314, the waste is ground through the cooperation of the grinding head 317, the air in the inner cavity of the collecting box 324 is sucked by the air pump 326 during grinding, so that negative pressure suction is generated in the interior of the collecting box 324, the suction force is transmitted to the interior of the suction shell 322 through the communication of the hose 327 and the suction shell 322, and the waste after grinding is extracted through the communication of the second hole 321;

when the punching of the punching bit body 312 is completed and the punching bit is lifted, the rack 3106 automatically rebounds through the elasticity of the first reset spring 3105, the gear 3113 is driven to move upwards through the meshing connection of the rack 3106 and the gear 3113, meanwhile, the gear 3113 synchronously drives the second bearing seat 3110, the connecting block 3109 and the inner ring 3108 to move upwards, and the lifting block 3117 is driven to move upwards when the inner ring 3108 moves upwards, so that waste at the bottom of the inner cavity of the punching bit body 312 is lifted, and the waste is prevented from falling out of the inner cavity of the punching bit body 312.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A paper product perforation device, comprising:

the drilling device comprises a base (1), wherein a punching device (2) is arranged at the top of the base (1);

the drill mechanism (3) is used for punching the paper product, and the drill mechanism (3) is arranged on one side of the bottom of the punching equipment (2); wherein,,

the drill bit mechanism (3) comprises a punching assembly (31) and a negative pressure adsorption mechanism (32), wherein the punching assembly (31) for punching paper products is arranged at the transmission end of the punching equipment (2), and the negative pressure adsorption mechanism (32) for cleaning waste paper in the punching assembly (31) is arranged on the surface of the punching assembly (31);

the fixing and placing mechanism (4) is used for placing and fixing paper products, and the fixing and placing mechanism (4) is sleeved at the bottom of the punching equipment (2).

2. A paper product perforating apparatus as recited in claim 1 wherein: perforating subassembly (31) are including installing in mount pad (311) of drilling equipment (2) driving end, drill bit body (312) are installed to the bottom of mount pad (311), four first bar holes (313) have been seted up to the bottom on drill bit body (312) surface, toper guide casing (314) are installed to the inner chamber of drill bit body (312), the top intercommunication of toper guide casing (314) has roof (315), motor (316) are installed at the inner chamber of drill bit body (312) and the top that is located roof (315), the output welding of motor (316) has crushing head (317), the bottom fixedly connected with connecting rod (318) of crushing head (317), the bottom of connecting rod (318) runs through roof (315) and toper guide casing (314) in proper order and extends to the bottom of drill bit body (312) inner chamber, the fixed surface of connecting rod (318) installs screw conveyer blade (319).

3. A paper product perforating apparatus as recited in claim 2 wherein: the surface of drill bit body (312) just is located the top of first bar hole (313) and installs first bearing frame (3101), one side fixedly connected with lantern ring (3102) that mount pad (311) was kept away from to first bearing frame (3101), equal fixedly connected with fixed plate (3103) in both sides of lantern ring (3102), the surface sliding of fixed plate (3103) installs slide bar (3104), the top cover on slide bar (3104) surface is equipped with first reset spring (3105), the bottom fixedly connected with rack (3106) of slide bar (3104), the bottom fixedly connected with clamp plate (3107) of rack (3106).

4. A paper product perforating apparatus as claimed in claim 3, characterized in that: the bottom of punching bit body (312) inner chamber is installed inner ring (3108), all fixedly connected with links piece (3109) around inner ring (3108) surface, the one end that links piece (3109) kept away from inner ring (3108) runs through first bar hole (313) and extends to the outside of punching bit body (312), link piece (3109) and first bar hole (313) sliding connection, the one end cover that links piece (3109) to be located punching bit body (312) outside is equipped with second bearing frame (3110), the both sides of second bearing frame (3110) all fixedly connected with horizontal pole (3111), one end that second bearing frame (3110) were kept away from to horizontal pole (3111) is installed one side of single direction bearing (3112) is installed gear (3113), gear (3113) and rack (3106) meshing are connected.

5. A paper product perforating apparatus as recited in claim 4 wherein: the utility model discloses a telescopic link, including installation cavity (3114) is all offered to the inside wall that links piece (3109) and inner ring (3108), telescopic link (3115) is installed to one side of installation cavity (3114) inner chamber, the surface cover of telescopic link (3115) is equipped with second reset spring (3116), the flexible end fixedly connected with lifting block (3117) of telescopic link (3115), one side of lifting block (3117) runs through installation cavity (3114) and extends to the inboard of inner ring (3108).

6. A paper product perforating apparatus as recited in claim 1 wherein: the negative pressure adsorption mechanism (32) comprises two second strip-shaped holes (321) formed in the tops of two sides of the perforating bit body (312), an air extraction shell (322) is sleeved on the surface of the perforating bit body (312) and located outside the second strip-shaped holes (321), and a hose (327) is communicated with one side of the bottom of the air extraction shell (322).

7. A paper product perforating apparatus as recited in claim 6 wherein: one side of punching equipment (2) is provided with collection case (324), dust guard (325) are installed to the inner chamber of collection case (324), air pump (326) are installed at the inner chamber of collection case (324) and are located the top of dust guard (325), the air-out end of air pump (326) runs through collection case (324) and extends to the outside of collection case (324), one end that shell (322) was taken out in the evacuation is kept away from to hose (327) communicates with one side of collection case (324).

8. A paper product perforating apparatus as recited in claim 7 wherein: the rotary sealing piece (323) is installed on the inner side wall of the air extraction shell (322), and one side, away from the air extraction shell (322), of the rotary sealing piece (323) is connected with the perforating bit body (312).

9. A paper product perforating apparatus as recited in claim 1 wherein: the fixed placing mechanism (4) comprises a placing plate (41) arranged at the top of the base (1), L-shaped limiting plates (42) are slidably arranged on two sides of the top of the placing plate (41), sliding holes (43) are formed in the front side and the rear side of the surface of each L-shaped limiting plate (42), bolts (44) are slidably arranged in inner cavities of the sliding holes (43), and the bottoms of the bolts (44) penetrate through the placing plate (41) and are in threaded connection with the placing plate (41).

10. A paper product perforating apparatus as recited in claim 9 wherein: a sliding shell (45) is arranged on one side of the placing plate (41), the sliding shell (45) is sleeved on the surface of the punching equipment (2) and is in sliding connection with the punching equipment (2), and a fastener (46) is arranged on one side of the sliding shell (45).