CN112678596A

CN112678596A - Paper speed reducing device for paper conveying and paper delivery equipment thereof

Info

Publication number: CN112678596A
Application number: CN202011606062.9A
Authority: CN
Inventors: 田野; 汤文健
Original assignee: Bengbu Hongchuang Printing Technology Co ltd
Current assignee: Bengbu Hongchuang Printing Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-20

Abstract

The invention provides a paper speed reducer for paper conveying and a paper collecting device thereof, which comprises a bracket, a mounting rack, a sliding assembly, a buffer plate, a limiting assembly, a height adjusting assembly, a mounting board, an air inlet box, a nozzle, a transition roller, a lifting assembly, a rotating bracket, a pressing assembly, a smoothing plate and a rubber plate, wherein the lifting cylinder drives the pressing assembly to move downwards, when the pressing assembly contacts the paper on the surface of the smoothing plate, the pressing assembly moves from the middle position of the paper to two sides along with the extension and retraction of the lifting cylinder to smooth the paper and prevent the surface of the paper from wrinkling, the nozzle of the paper is not directly blown to the paper on the buffer plate, the air is sprayed out through the nozzle, the air flow rate above the paper is increased to reduce the pressure above the paper, the friction force between the paper and the buffer plate is increased, the paper speed is reduced, the limiting assembly can adjust the distance between two groups of guide wheels according to the width of the paper, the paper is allowed to pass between the two sets of guide wheels.

Description

Paper speed reducing device for paper conveying and paper delivery equipment thereof

Technical Field

The invention relates to the technical field of high-speed paper collecting machines, in particular to a paper speed reducing device for paper conveying and paper collecting equipment thereof.

Background

In the current paper making industry, the high-speed paper making machine is more and more widely used, the existing high-speed paper making machine is used for collecting and arranging paper after paper pulp is extruded and cut, and the paper is collected under the influence of inertia and tension of the upper surface and the lower surface of the paper.

The publication No. CN107010456B discloses a paper speed reducing device, which reduces the moving speed of paper by blowing the paper by a blowing assembly and by making the paper rub against an absorbing assembly, and arranges the paper by a pressing assembly, although the moving speed of paper can be reduced, the following disadvantages still exist: 1. the pressing assembly directly extrudes the falling paper and cannot play a role in smoothing the paper, and when the falling paper is wrinkled, the pressing assembly is directly pressed down, so that the paper is still folded; 2. when the blowing assembly blows the paper to decelerate, the paper is easy to blow up, and the paper is blown disorderly and tilted while being decelerated; when 3 paper passes through the second horizontal pole, owing to do not have stop device, the skew takes place easily in the paper position, when accomodating the paper, causes the untidy that the paper piled up.

Disclosure of Invention

The present invention is directed to a paper speed reducer for paper transportation to solve the above problems of the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a paper deceleration device for paper transport comprising a support, a mounting bracket, a slide assembly and a buffer plate, wherein:

the lower part of the support is fixedly provided with a mounting frame, one end of the support is fixedly provided with a sliding assembly, the sliding assembly is provided with a buffer plate, the middle part of the buffer plate is provided with an adjusting groove, a limiting assembly is arranged in the adjusting groove, the middle part of the support is fixedly provided with a height adjusting assembly, the top part of the height adjusting assembly is provided with a mounting plate, the mounting plate is fixedly provided with an air inlet box, the side wall of the air inlet box is fixedly provided with a nozzle, the nozzle faces one side of the buffer plate, the air injection direction of the nozzle is parallel to the upper end face of the buffer plate, the height of the nozzle is higher than that of the buffer plate, and a transition roller is;

a lifting assembly is fixed at the other end of the support, a rotating support is mounted at the top of the lifting assembly, a pressing assembly is mounted on the rotating support, and a stroking plate is fixed on the support right below the pressing assembly;

the lifting assembly is provided with a lifting cylinder, a rotating seat and a rotating shaft, the lower part of the lifting cylinder is fixed on the bracket, the telescopic part of the lifting cylinder is fixedly provided with the rotating seat, the rotating seat is provided with the rotating shaft, and two ends of the rotating shaft are provided with the rotating brackets; the runing rest includes first swinging boom and second swinging boom, first swinging boom and second swinging boom set up respectively in the pivot both sides, the one end of first swinging boom and second swinging boom is provided with rotatory hole, first swinging boom and second swinging boom pass through rotatory hole cover in the pivot, and can revolute the axle and rotate, all install the subassembly that pushes down between two first swinging booms and between two second swinging booms.

Preferably, the runing rest still includes guide bar and coupling spring, be provided with the guiding hole on first swinging boom and the second swinging boom, the guide bar sets up in the guiding hole, the guide bar is semi-circular, first swinging boom and second swinging boom can be followed the guide bar and rotated, be connected with coupling spring between first swinging boom and the second swinging boom.

Preferably, the push-down assembly comprises a rotating rod and a paper pressing part, the rotating rod can rotate freely around the axis of the rotating rod, and the paper pressing part is fixed on the surface of the rotating rod.

Preferably, the paper pressing part is a cylindrical sponge, and the cylindrical sponge is wrapped on the surface of the rotating rod.

Preferably, spacing subassembly includes fixing base, leading wheel, spliced pole, screens board and clamping screw, the leading wheel is installed to the upper end of fixing base, the lower extreme of fixing base is fixed with the spliced pole, be provided with the spacing groove in the buffer board, the spliced pole card is in the adjustment tank, the screens board sets up at the spacing inslot, clamping screw passes the screens board and is connected with the spliced pole.

Preferably, the height adjusting assembly comprises a base, a lifting seat and a locking screw rod, wherein a lifting groove is formed in the base, the lifting seat is installed in the lifting groove, and the locking screw rod penetrates through the side wall of the base and abuts against the outer side wall of the lifting seat.

Preferably, an inwards concave directional groove is formed in the outer side wall of the lifting seat, a convex directional block is arranged on the side wall of the lifting groove, and the directional block is clamped in the directional groove.

Preferably, the sliding assembly comprises a sliding rail, a sliding block, a sliding seat, a steel ball, a limiting block and a positioning screw rod, wherein a sliding groove is formed in the inner wall of the sliding rail, the sliding block is fixed in the sliding seat, the steel ball is installed on the outer wall of the sliding seat, the sliding seat is installed in the sliding rail, the steel ball is clamped in the sliding groove, the limiting block is arranged at each of the front end and the rear end of the sliding seat, the two ends of the limiting block are clamped in the sliding groove, the positioning screw rod is installed on the limiting block, and the lower end of the positioning screw rod penetrates through the limiting block.

Preferably, a layer of rubber plate is uniformly attached to the upper surface of the buffer plate.

The invention also discloses paper delivery equipment, wherein the paper delivery equipment adopts the paper speed reducing device, and the paper speed reducing device is arranged at the paper conveying end of the paper delivery equipment.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the lifting cylinder drives the pressing component to move downwards, when the pressing component contacts paper on the surface of the smoothing plate, the first rotating arm and the second rotating arm rotate around the rotating shaft, and along with the extension and contraction of the lifting cylinder, the pressing component moves from the middle position of the paper to two sides to smooth the paper, so that the corners of the paper are effectively prevented from being bent, and the surface of the paper is prevented from being wrinkled;

2. the nozzle of the invention does not directly blow the paper on the buffer plate, but sprays gas through the nozzle, increases the air flow rate above the paper to reduce the pressure above the paper, thereby applying pressure on the upper surface of the paper by the atmospheric pressure above the paper, increasing the friction force between the paper and the buffer plate, and achieving the purpose of reducing the speed of the paper;

3. spacing subassembly position on the buffer board can be free adjusts to can let the paper let it pass through between two sets of leading wheels from when passing through the buffer board according to the distance between the two sets of leading wheels of width adjustment of paper, prevent to cause the position of paper to take place skew and slope easily because of friction deceleration.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a schematic view of a buffer plate according to the present invention;

FIG. 3 is a schematic view of the installation position of the position limiting assembly according to the present invention;

FIG. 4 is an exploded view of the spacing assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of the sliding assembly of the present invention;

FIG. 6 is a schematic view of the height adjustment assembly of the present invention;

FIG. 7 is a schematic view of the mounting plate and air intake box mounting structure of the present invention;

FIG. 8 is a schematic view of the structure of the rotating bracket and the hold-down assembly of the present invention;

FIG. 9 is an exploded view of the swivel stand of the present invention;

FIG. 10 is a schematic view of the overall structure of the present invention;

FIG. 11 is a schematic view of the first and second rotating arms of the present invention in a natural drooping state;

fig. 12 is a schematic structural view of the first rotating arm and the second rotating arm after being opened in the present invention.

In the figure: 1 support, 2 mounting frames, 3 sliding components, 301 sliding rails, 302 sliding blocks, 303 sliding seats, 304 steel balls, 305 limiting blocks, 306 positioning screws, 311 sliding grooves, 4 buffer plates, 411 adjusting grooves, 412 limiting grooves, 5 limiting components, 501 fixing seats, 502 guide wheels, 503 connecting columns, 504 clamping plates, 505 fixing screws, 6 height adjusting components, 601 bases, 602 lifting seats, 603 locking screws, 611 lifting grooves, 612 guiding grooves, 7 mounting plates, 8 air inlet boxes, 9 nozzles, 10 transition rollers, 11 lifting components, 1101 lifting cylinders, 1102 rotating seats, 1103 rotating shafts, 12 rotating supports, 1201 first rotating arms, 1202 second rotating arms, 1203 guiding rods, 1204 connecting springs, 1211 rotating holes, 1212 guiding holes, 13 downward pressing components, 1301, 1302 components, 14 pressing plates and 15 rubber plates 15.

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.

Example (b):

referring to fig. 1 to 12, the present invention provides a technical solution:

a paper decelerator for paper transport, includes support 1, mounting bracket 2, sliding component 3, buffer board 4, spacing subassembly 5, altitude mixture control subassembly 6, mounting panel 7, inlet box 8, nozzle 9, transition gyro wheel 10, lifting unit 11, runing rest 12, pushes down subassembly 13, smooths flat board 14 and rubber slab 15, wherein:

the lower part of the support 1 is fixed with a mounting rack 2, the mounting rack is used for mounting the speed reducer on one end of the support 1 and is fixed with a sliding component 3, the sliding component 3 comprises a sliding rail 301, a sliding block 302, a sliding seat 303, steel balls 304, a limiting block 305 and a positioning screw 306, the sliding rail 301 is fixed on the upper end surface of the support 1, the inner wall of the sliding rail 301 is provided with a sliding groove 311, the sliding block 302 is fixed in the sliding seat 303, the buffer plate 4 is mounted on the sliding block 302, the steel balls 304 are mounted on the outer wall of the sliding seat 303, the sliding seat 303 is mounted in the sliding rail 301, the steel balls 304 are clamped in the sliding groove 311, the sliding seat 303 can freely slide back and forth in the sliding rail 301 through the steel balls 304, so as to drive the sliding block 302 to move, the position of the buffer plate 4 is adjusted, and, the front end and the rear end of the sliding seat 303 are provided with limiting blocks 305, the two ends of the limiting blocks 305 are clamped in the sliding grooves 311, the limiting blocks 305 can slide along the sliding grooves 311, the positions of the sliding seat 303 are adjusted, the positioning screw 306 is installed on the limiting blocks 305, the lower end of the positioning screw 306 penetrates through the limiting blocks 305 and abuts against the bottom of the sliding rail 301, the limiting blocks 305 can be fixed after the positioning screw is screwed down, the sliding seat 303 is fixed by the two limiting blocks 305, and therefore the position of the buffer plate 4 can be fixed after adjustment, and the buffer plate cannot move easily.

An adjusting groove 411 is arranged in the middle of the buffer plate 4, a limiting groove 412 is arranged in the buffer plate 4, two groups of limiting components 5 are arranged in the adjusting groove 411, each limiting component 5 comprises a fixed seat 501, a guide wheel 502, a connecting column 503, a clamping plate 504 and a fixing screw 505, the guide wheel 502 is arranged at the upper end of the fixed seat 501, the guide wheel 502 can freely rotate on the fixed seat 501, the connecting column 503 is fixed at the lower end of the fixed seat 501, the connecting column 503 is clamped in the adjusting groove 411, the connecting column 503 can move in the adjusting groove 411 to drive the guide wheel 502 to move, the effect of adjusting the distance between the two groups of guide wheels 502 is realized, the clamping plate 504 is arranged in the limiting groove 412, the fixing screw 505 penetrates through the clamping plate 504 to be connected with the connecting column 503, and the clamping plate 504 can move in the limiting groove 412 along with the movement of the connecting column 503, when clamping screw 505 is screwed down, screens board 504 is fixed in spacing groove 412 to fix leading wheel 502, can realize the adjustment of the spacing subassembly 5 position freedom on the buffer board 4 through this structure, thereby can let the paper pass through between two sets of leading wheels 502 according to the distance between the two sets of leading wheels 502 of width adjustment of paper when letting the paper pass through buffer board 4, prevent to cause the position of paper to take place skew and slope easily because of friction deceleration.

The middle part of the bracket 1 is fixed with a height adjusting component 6, the top of the height adjusting component 6 is provided with a mounting plate 7, the mounting plate 7 is fixed with an air inlet box 8, the air inlet box 8 is provided with an air nozzle connected with an air pump, the side wall of the air inlet box 8 is fixed with a nozzle 9, the nozzle 9 is communicated with the inside of the air inlet box 8, the nozzle 9 faces to one side of the buffer board 4, the air injection direction of the nozzle 9 is parallel to the upper end surface of the buffer board 4, and the height of the nozzle 9 is higher than that of the buffer board 4, the height adjusting component 6 comprises a base 601, a lifting seat 602 and a locking screw 603, the lifting groove 611 is arranged in the base 601, the lifting seat 602 is arranged in the lifting groove 611, the lifting seat 602 moves up and down in the lifting groove 611, the locking screw 603 penetrates through the side wall of the base 601 to abut against the outer side wall of the lifting seat 602, the height of the air inlet box 8 is changed by the up-down lifting of the lifting seat 602, the nozzle 9 is always positioned at the upper end of the paper placed on the buffer plate 4, the outer side wall of the lifting seat 602 is provided with the concave directional groove 612, the side wall of the lifting groove 611 is provided with the convex directional block 605, the directional block 605 is clamped in the directional groove 612, the directional groove 612 and the directional block 605 play a good guiding role when the lifting seat 602 moves, because the height of the nozzle 9 is higher than that of the paper on the buffer plate 4, the air sprayed by the nozzle 9 cannot directly blow the paper on the buffer plate 4, but the air is sprayed by the nozzle 9, the air flow velocity above the paper is increased to reduce the pressure above the paper, so that the large air pressure above the paper is applied to the upper surface of the paper, the friction between the paper and the buffer plate 4 when the paper passes through the buffer plate 4 is increased, the purpose of reducing the speed of the paper is achieved, and, and let the paper receive everywhere frictional force than more even, slow down more even everywhere for the paper steadily slows down the forward motion, the upper surface of buffer board 4 evenly attaches one deck rubber slab 15, can increase and the paper between frictional force, improves the effect of slowing down, be fixed with on the support 1 under the subassembly 13 and smooth flat board 14 down, be provided with transition gyro wheel 10 between the height adjusting part 6, after the paper slows down through buffer board 4, shift to on the buffer board 4 through transition gyro wheel 10.

The other end of support 1 is fixed with lifting unit 11, lifting unit 11 has lift cylinder 1101, roating seat 1102 and pivot 1103, the lower part of lift cylinder 1101 is fixed on the support 1, be fixed with roating seat 1102 on the flexible of lift cylinder 1101, the telescopic link of lift cylinder 1101 drives roating seat 1102 and goes up and down when stretching out and drawing back, install pivot 1103 on the roating seat 1102, pivot 1103 can carry out the free rotation on roating seat 1102, runing rest 12 is all installed at the both ends of pivot 1103, runing rest 12 can rotate round pivot 1103, install pushing down subassembly 13 on runing rest 12.

The rotating bracket 12 includes a first rotating arm 1201 and a second rotating arm 1202, the first rotating arm 1201 and the second rotating arm 1202 are respectively disposed on two sides of a rotating shaft 1103, the first rotating arm 1201 and the second rotating arm 1202 are disposed in an inverted V shape, one end of the first rotating arm 1201 and one end of the second rotating arm 1202 are provided with a rotating hole 1211, the first rotating arm 1201 and the second rotating arm 1202 are sleeved on the rotating shaft 1103 through the rotating hole 1211 and can rotate around the rotating shaft 1103, the rotating bracket 12 further includes a guide rod 1203 and a connecting spring 1204, the first rotating arm 1201 and the second rotating arm 1202 are provided with a guide hole 1212, the guide rod 1203 is disposed in the guide hole 1212, the guide rod 1203 is semicircular, the first rotating arm 1201 and the second rotating arm 1202 can rotate along the guide rod 1203, the guide rod 1203 can slide in the guide hole 1212, and the guide rod 1203 plays a good guiding role in guiding the movement of the first rotating arm 1201 and the second rotating arm 1202, a connecting spring 1204 is connected between the first rotating arm 1201 and the second rotating arm 1202, the connecting spring 1204 is sleeved on the guide rod 1203, the connecting spring 1204 can be quickly reset after the first rotating arm 1201 and the second rotating arm 1202 move, the pressing assemblies 13 are respectively installed between the two first rotating arms 1201 and between the two second rotating arms 1202, each pressing assembly 13 is composed of a rotating rod 1301 and a pressing component 1302, the rotating rod 1301 can freely rotate around the axis of the rotating rod, the pressing component 1302 is fixed on the surface of the rotating rod 1301, the pressing component 1302 is a cylindrical sponge, the cylindrical sponge is wrapped on the surface of the rotating rod 1301, after paper is conveyed onto the touch plate 14, the lifting cylinder 1101 drives the pressing component 13 to move downwards, and when the pressing component 1302 of the pressing component 13 contacts the paper on the surface of the touch plate 14, the first rotating arm 1201 and the second rotating arm 1202 rotate around the rotating shaft 1103, with the expansion and contraction of the lifting cylinder 1101, the paper pressing component 1302 moves from the middle position of the paper to two sides, and the paper is smoothed, so that the corners of the paper are effectively prevented from being bent, and the surface of the paper is prevented from being wrinkled.

The use principle of the invention is as follows: before use, the paper speed reducer is installed on paper collecting equipment through an installation frame 2, the upper end face of a buffer plate 4 and a conveying device of the paper collecting equipment are kept horizontal, then a positioning screw 306 is loosened, the position of the buffer plate 4 is moved according to the size of paper, the positioning screw is screwed down after the buffer plate 4 is moved to a proper position, then a fixing screw 505 is loosened, a limiting component 5 is moved according to the width of the paper, the distance between two groups of limiting components 5 is the same as the width of the paper, then the fixing screw 505 is screwed down, then a locking screw 603 is loosened, the height of a nozzle 9 is adjusted up and down, the height of the nozzle 9 is higher than the paper on the buffer plate 4, and finally the locking screw 603 is screwed down;

when the paper conveying device is used, the air inlet box 8 is connected with an air pump, air is introduced into the air inlet box 8, the air is sprayed out from the nozzles 9, when paper enters the paper speed reducing device from the paper conveying device, firstly, the paper passes through the buffer plate 4, the air flow velocity above the paper is increased by the nozzles 9, so that the pressure above the paper is reduced, the atmospheric pressure above the paper is applied to the upper surface of the paper, the friction force between the paper and the buffer plate 4 when the paper passes through the buffer plate 4 is increased, the paper is reduced in speed through the buffer plate 4 and then transferred onto the buffer plate 4 through the transition roller 10, then the lifting cylinder 1101 is controlled to contract downwards, the lifting cylinder 1101 drives the pressing component 13 to move downwards, when the paper pressing part 1302 of the pressing component 13 contacts the paper on the surface of the pressing plate 14, the first rotating arm 1201 and the second rotating arm 1202 rotate around the rotating shaft 1103 along with the expansion and contraction of the lifting cylinder, the paper pressing member 1302 moves from the middle of the paper to both sides, smoothes the paper, and finally removes the paper from the smoothing plate 14.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A paper decelerator for paper transport, includes support (1), mounting bracket (2), sliding assembly (3) and buffer board (4), its characterized in that:

a mounting rack (2) is fixed at the lower part of the bracket (1), a sliding component (3) is fixed at one end of the bracket (1), a buffer plate (4) is arranged on the sliding component (3), an adjusting groove (411) is arranged in the middle of the buffer plate (4), a limiting component (5) is arranged in the adjusting groove (411), a height adjusting component (6) is fixed in the middle of the bracket (1), the top of the height adjusting component (6) is provided with an installation plate (7), an air inlet box (8) is fixed on the installation plate (7), a nozzle (9) is fixed on the side wall of the air inlet box (8), the nozzle (9) faces one side of the buffer plate (4), the air injection direction of the nozzle (9) is parallel to the upper end surface of the buffer plate (4), the height of the nozzle (9) is higher than that of the buffer plate (4), and a transition roller (10) is arranged between the height adjusting components (6);

a lifting assembly (11) is fixed at the other end of the support (1), a rotating support (12) is installed at the top of the lifting assembly (11), a pressing assembly (13) is installed on the rotating support (12), and a stroking plate (14) is fixed on the support (1) right below the pressing assembly (13);

the lifting assembly (11) is provided with a lifting cylinder (1101), a rotating base (1102) and a rotating shaft (1103), the lower part of the lifting cylinder (1101) is fixed on the support (1), the rotating base (1102) is fixed on the telescopic part of the lifting cylinder (1101), the rotating shaft (1103) is installed on the rotating base (1102), and the rotating supports (12) are installed at two ends of the rotating shaft (1103); the rotating support (12) comprises a first rotating arm (1201) and a second rotating arm (1202), the first rotating arm (1201) and the second rotating arm (1202) are arranged on two sides of a rotating shaft (1103) respectively, a rotating hole (1211) is formed in one end of the first rotating arm (1201) and one end of the second rotating arm (1202), the first rotating arm (1201) and the second rotating arm (1202) are sleeved on the rotating shaft (1103) through the rotating hole (1211) and can rotate around the rotating shaft (1103), and a pressing component (13) is arranged between the two first rotating arms (1201) and between the two second rotating arms (1202).

2. A sheet decelerating device for sheet conveyance according to claim 1, characterized in that: the rotating bracket (12) further comprises a guide rod (1203) and a connecting spring (1204), guide holes (1212) are formed in the first rotating arm (1201) and the second rotating arm (1202), the guide rod (1203) is arranged in the guide holes (1212), the guide rod (1203) is semicircular, the first rotating arm (1201) and the second rotating arm (1202) can rotate along the guide rod (1203), and the connecting spring (1204) is connected between the first rotating arm (1201) and the second rotating arm (1202).

3. A sheet decelerating device for sheet conveyance according to claim 1, characterized in that: the pressing assembly (13) is composed of a rotating rod (1301) and a paper pressing part (1302), the rotating rod (1301) can rotate freely around the axis of the rotating rod, and the paper pressing part (1302) is fixed on the surface of the rotating rod (1301).

4. A sheet decelerating device for sheet conveyance according to claim 3, wherein: the paper pressing part (1302) is a cylindrical sponge, and the cylindrical sponge is wrapped on the surface of the rotating rod (1301).

5. A sheet decelerating device for sheet conveyance according to claim 1, characterized in that: spacing subassembly (5) include fixing base (501), leading wheel (502), spliced pole (503), screens board (504) and clamping screw (505), leading wheel (502) are installed to the upper end of fixing base (501), the lower extreme of fixing base (501) is fixed with spliced pole (503), be provided with spacing groove (412) in buffer board (4), spliced pole (503) card is in adjustment tank (411), screens board (504) set up in spacing groove (412), clamping plate (504) and spliced pole (503) are passed to clamping screw (505) and are connected.

6. A sheet decelerating device for sheet conveyance according to claim 1, characterized in that: the height adjusting assembly (6) comprises a base (601), a lifting seat (602) and a locking screw (603), a lifting groove (611) is formed in the base (601), the lifting seat (602) is installed in the lifting groove (611), and the locking screw (603) penetrates through the side wall of the base (601) and abuts against the outer side wall of the lifting seat (602).

7. The sheet decelerating device for sheet conveyance according to claim 6, wherein: the outer side wall of the lifting seat (602) is provided with a concave directional groove (612), the side wall of the lifting groove (611) is provided with a convex directional block (605), and the directional block (605) is clamped in the directional groove (612).

8. A sheet decelerating device for sheet conveyance according to claim 1, characterized in that: the sliding assembly (3) comprises a sliding rail (301), a sliding block (302), a sliding seat (303), steel balls (304), a limiting block (305) and a positioning screw (306), wherein a sliding groove (311) is formed in the inner wall of the sliding rail (301), the sliding block (302) is fixed in the sliding seat (303), the steel balls (304) are installed on the outer wall of the sliding seat (303), the sliding seat (303) is installed in the sliding rail (301), the steel balls (304) are clamped in the sliding groove (311), the limiting block (305) is arranged at the front end and the rear end of the sliding seat (303), the two ends of the limiting block (305) are clamped in the sliding groove (311), the positioning screw (306) is installed on the limiting block (305), and the lower end of the positioning screw (306) penetrates through the limiting block (305) and abuts against the bottom of the sliding rail (301).

9. A sheet decelerating device for sheet conveyance according to claim 1, characterized in that: a layer of rubber plate (15) is uniformly attached to the upper surface of the buffer plate (4).

10. A paper delivery apparatus, characterized in that: the delivery device adopts the paper decelerating device as claimed in any one of claims 1 to 8, and the paper decelerating device is arranged at the paper feeding end of the delivery device.