CN215755395U

CN215755395U - Feeding device

Info

Publication number: CN215755395U
Application number: CN202121563429.3U
Authority: CN
Inventors: 陈志宏
Original assignee: Guangzhou Sysform Machinery Co ltd
Current assignee: Guangzhou Sysform Machinery Co ltd
Priority date: 2021-07-10
Filing date: 2021-07-10
Publication date: 2022-02-08
Anticipated expiration: 2031-07-10

Abstract

The utility model provides a feeding device; comprises a frame; a paper feeding unit is arranged on the frame; the paper feeding unit comprises a paper supporting device, a paper feeding device and a blowing device; the air flow blown out from the air outlet drives the paper to approach the paper feeding device; the adsorption effect of the paper feeding adsorption device on paper is improved; so that the paper can better enter the paper feed channel. By arranging a paper feed channel; the paper is beneficial to the stable conveying of the paper; meanwhile, the paper supporting platform is movably arranged through the paper supporting device; the paper supporting platform can be close to or far away from the paper feeding adsorption device; thus, the height of the paper accommodating space can be adjusted; the position of the paper bearing table can be adjusted according to the distance between the uppermost layer of paper of the paper bearing table and the paper feeding adsorption device; avoiding reducing the paper on the paper supporting platform; the distance between the residual paper and the paper feeding adsorption device is increased; the situation that the paper feeding adsorption device cannot adsorb paper occurs. The paper feeding function of the paper is ensured.

Description

Feeding device

Technical Field

The utility model relates to post-printing treatment equipment, in particular to a feeding device.

Background

The automatic marking press is used as post-printing processing equipment, marks in the vertical direction are formed on the surface of paper, one-time or multiple-time marks can be formed at any position on the paper without manufacturing a template, and the automatic marking press is widely applied to industries such as printing, packaging, decoration and the like.

In chinese application No. 201110207693.8; the publication No. 2016.8.3 discloses an automatic paper feeding digital creasing machine; the marking machine comprises a paper feeding unit, a paper collecting unit, a marking unit, a fan unit and an operation control unit, wherein the paper feeding unit conveys paper to the marking unit, the marking unit marks the paper and then enters the paper collecting unit, the marking unit mainly comprises a paper feeding rubber roller, a marking cutter, a paper outlet rubber roller, a marking driving motor and a paper sensor, and after the sensor and the paper inlet and outlet rubber roller accurately position the paper, the marking driving motor drives the marking cutter to carry out marking operation.

The marking press leads the paper stacked on the paper supply table panel to float up through the air outlet of the air outlet hole; the air outlet hole is arranged on the side plate of the paper table; but the air outlet holes are arranged on the side plates of the paper table; the air outlet direction of the air outlet hole does not correspond to the air suction direction of the air suction wheel; the air outlet of the air outlet hole only enables the paper to float slightly; it can not drive the paper to approach the air suction wheel; meanwhile, the paper table panel is fixed, and after the air suction wheel conveys a part of paper into the indentation unit; the paper on the paper table panel is reduced; the distance between the residual paper and the air suction wheel can be increased; the suction pressure formed by the suction wheel can not drive the paper to approach the suction wheel; this does not ensure the paper feeding function.

Disclosure of Invention

The utility model provides a feeding device for enabling paper to reliably enter an indenting machine.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a feeding device is arranged on a frame for use; comprises a paper feeding unit; the paper feeding unit is used for conveying paper; the paper feeding unit comprises a paper supporting device, a paper feeding device and a blowing device; the paper supporting device is positioned at one end of the frame; the blowing device is close to the other end of the rack; the paper feeding device is positioned above the paper supporting device and the blowing device; a paper feeding channel is formed between the paper feeding device and the blowing device;

an air inlet is formed in one end, far away from the paper supporting device, of the rack; the air blowing device is provided with an air outlet; the air inlet is communicated with the air outlet; the air flow generated by the blowing device passes through the air outlet and blows towards the paper feeding device; the paper feeding device comprises a paper feeding conveying device; the paper feeding conveying device is provided with a paper feeding adsorption device; the wind flow drives the paper to approach the paper feeding adsorption device; the paper feeding adsorption device adsorbs the paper close to the paper feeding adsorption device; the paper feeding conveying device drives paper to enter a paper feeding channel;

the frame is provided with a movable groove; the paper supporting device comprises a paper supporting platform and a supporting driving device; the paper supporting platform is used for supporting paper; a movable bracket is convexly arranged on the paper supporting platform; the movable bracket passes through the movable groove and is connected with the bearing driving device; the bearing driving device drives the paper bearing table to be close to or far away from the paper feeding adsorption device, and a paper accommodating space is formed between the paper feeding adsorption device and the paper bearing table.

According to the arrangement, the paper is driven to approach the paper feeding device by the air flow blown out of the air outlet; the adsorption effect of the paper feeding adsorption device on paper is improved; so that the paper can better enter the paper feed channel. By arranging a paper feed channel; the paper is beneficial to the stable conveying of the paper; meanwhile, the paper supporting platform is movably arranged through the paper supporting device; the paper supporting platform can be close to or far away from the paper feeding adsorption device; thus, the height of the paper accommodating space can be adjusted; the position of the paper bearing table can be adjusted according to the distance between the uppermost layer of paper of the paper bearing table and the paper feeding adsorption device; avoiding reducing the paper on the paper supporting platform; the distance between the residual paper and the paper feeding adsorption device is increased; the situation that the paper feeding adsorption device cannot adsorb paper occurs. The paper feeding function is ensured, then the paper feeding adsorption device adsorbs the adjacent paper from the top, and the blowing device generates air flow, so that the adjacent paper can smoothly enter the paper feeding channel.

Furthermore, the device also comprises a shielding plate; the paper feeding device is arranged on one side of the rack; the shielding plate is arranged on the other side of the rack; one end of the baffle plate is positioned above the blowing device; the other end of the baffle plate is positioned above the paper supporting platform; a paper feeding channel is formed between the shielding plate and the blowing device.

Through the arrangement, the shielding plate and the paper are blocked; avoiding the paper feeding and conveying device from conveying paper; the end of the paper can not be aligned with the paper feed channel, so that the paper can not enter the paper feed channel; meanwhile, under the action of the blowing device, the wind flow plays a role in supporting the paper; even if the paper feeding device is arranged at one side of the frame; and the paper does not fall down.

Furthermore, the shielding plate is fixedly connected with one side of the rack; the lower end face of the baffle plate is flush with the lower end face of the paper feeding conveying device.

The above setting is carried out; the lower end surface of the paper feeding conveying device is flush with the lower end surface of the shielding plate; this provides guidance for the sheet entering the sheet feed path.

Further, the blowing device comprises a blowing fan and a flow guide device; the inlet of the blowing fan is arranged corresponding to the air inlet; the flow guide device comprises a flow guide shell; the air outlet is arranged on the flow guide shell; the flow guide shell is provided with a flow guide cavity; the outlet of the blowing fan is communicated with the flow guide cavity; a movably arranged flow guide piece is arranged in the flow guide cavity; the flow guide piece is used for adjusting the size of the air flow passing through the air outlet.

According to the arrangement, the air flow of the air outlet is adjusted by arranging the flow guide piece; the size of the air flow can be adjusted according to paper made of different materials.

Further, the flow guide part is connected with a flow guide shaft; the flow guide piece is provided with a flow guide outlet; the diversion outlet is communicated with the diversion cavity and the air outlet; the guide shaft penetrates through the frame; the blowing device also comprises a blowing adjusting device; the blowing adjusting device comprises a blowing adjusting piece and a blowing adjusting bracket; the blowing adjusting piece is connected with the blowing adjusting bracket; the blowing adjusting bracket is connected with one end of the flow guide shaft; the blowing adjusting part drives the blowing adjusting bracket to rotate around the blowing adjusting part; the blowing adjusting bracket drives the flow guide outlet to be close to or far away from the air outlet.

According to the arrangement, the diversion outlet is close to the air outlet by rotating the blowing adjusting bracket in one direction; the air blowing adjusting bracket rotates towards the other direction to realize that the diversion outlet is far away from the air outlet; the structure is simple.

Further, the flow guide shell comprises a first wall surface; the first wall surface is arranged close to the paper supporting device; the first wall surface and the top surface of the flow guide shell are connected with a flow guide inclined plane which is obliquely arranged; the air outlet extends to the flow guiding inclined plane at the top end of the wall surface and is close to the top surface of the flow guiding shell.

The arrangement is that the diversion inclined plane is arranged; the air current is blown out from the air outlet obliquely upwards; so that the wind flow can drive the paper to approach the paper feeding adsorption device.

Further, the paper feeding and conveying device comprises a first conveying roller and a second conveying roller; the paper feeding adsorption device is arranged between the first conveying roller and the second conveying roller; a conveying belt is sleeved on the first conveying roller, the paper feeding adsorption device and the second conveying roller; the conveying belt is provided with an adsorption through hole communicated with the paper feed adsorption device; the conveying roller is connected with a first conveying transmission shaft; one end of the first conveying transmission shaft is connected with one end of the second conveying transmission shaft through a coupler; the other end of the second conveying transmission shaft is connected with a paper feeding driving device.

According to the arrangement, the paper feeding adsorption device adsorbs the paper to the conveying belt; so that the paper is attached to the conveying belt; the conveying effect is good. The conveying transmission shaft I and the conveying transmission shaft II are connected through a coupler; the first conveying transmission shaft and the second conveying transmission shaft are separated by detaching the coupler; make things convenient for paper feed conveyor's dismouting.

Furthermore, the blowing device extends to a direction far away from the paper feeding device to form a bearing piece.

Furthermore, the surface of the paper supporting platform is provided with a movably arranged paper stop; the paper stopper and the frame form an accommodating space for accommodating the paper.

Above setting, keeping off the activity of paper spare and setting up, be convenient for adjust accommodation space's size for with the paper adaptation of equidimension not.

Further, the bearing driving device comprises a bearing driving motor and a bearing transmission device; the bearing transmission devices are symmetrically arranged on the rack relative to the paper bearing table; the bearing transmission device comprises a bearing transmission wheel I, a bearing transmission wheel II, a bearing transmission wheel III and a bearing sliding device; the second bearing transmission wheel fixing piece is arranged close to the top surface of the frame; the first bearing transmission wheel and the third bearing transmission wheel are arranged close to the bottom surface of the frame; the bearing driving motor is connected with a bearing driving wheel; the bearing driving wheel is meshed with a bearing driving wheel I; a bearing transmission shaft is connected between the two bearing transmission wheels I; and a bearing driving wheel IV is arranged at one end of the bearing transmission shaft, which is close to the bearing driving motor.

Further, the method comprises the following steps of; the bearing sliding device comprises two lifting fixing pieces; a lifting fixing piece is arranged close to the bearing transmission wheel II; the other lifting fixing piece is arranged close to the bearing transmission wheel III; a lifting shaft is connected between the two lifting fixing pieces; the lifting shaft is provided with a movable lifting bearing seat; the movable bracket penetrates through the movable groove and is connected with the lifting bearing seat; a bearing transmission chain is connected between the upper end of the lifting bearing seat and the lower end of the lifting bearing seat; the bearing transmission chain is sleeved on the bearing transmission wheel II, the bearing transmission wheel III and the bearing transmission wheel IV.

Drawings

Fig. 1 is a schematic perspective view of an indenter using the present invention.

Fig. 2 is a schematic perspective view of the cover plate and the delivery table removed by the indenter of the present invention.

Fig. 3 is a front view of the cover plate removed using the creasing machine of the present invention.

Fig. 4 is a cross-sectional view of an indenter using the present invention.

Fig. 5 is an enlarged view of a in fig. 4.

Fig. 6 is a schematic view of the paper supporting table approaching the paper feeding adsorption device.

Fig. 7 is a schematic perspective view of a paper feeding device according to the present invention.

Fig. 8 is a schematic perspective view of the blowing device of the present invention.

Fig. 9 is an exploded view of the blowing device of the present invention.

Fig. 10 is a schematic perspective view of the paper separating device of the present invention.

Fig. 11 is a perspective view of another viewing angle of the creasing machine of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-11; a feeding device is installed on an indenting machine for use. The creasing machine comprises a frame 1; the frame 1 is provided with a cover plate 11. A paper feeding unit 2, an indentation unit 3, and a delivery table 4 are mounted on the frame 1. The paper feeding unit 2 conveys the paper to the creasing unit 3; the indentation unit 3 processes the paper; and conveys the processed sheet to the delivery table 4.

In chinese application No. 201310709502.7; the patent document published with the number 2014.4.16 discloses the technical features of an indentation unit; the indentation unit is the prior art; and will not be described herein in a repeated manner.

As shown in fig. 1, 2, 5, 8; the paper feeding unit 2 comprises a paper supporting device 21, a paper feeding device 22 and a blowing device 23; the paper supporting device 21 is positioned at one end of the frame 1; the indentation unit 3 is positioned at the other end of the frame 1; the blowing device 23 is positioned between the indentation unit 3 and the paper supporting device 21; a shielding plate 24 is arranged above the blowing device 23; the shielding plate 24 extends toward the sheet feeding device 22; the paper feeding device 22 is positioned above the paper supporting device 21 and the blowing device 23; the lower end surface of the paper feeding device 22 is flush with the lower end surface of the shielding plate 24; the sheet feeding device 22 and the shutter 24 form a sheet feeding path 25 with the blower 23.

As shown in fig. 1, 5, 7, 8, 9; an air inlet 12 is arranged at one end of the frame 1 far away from the paper supporting device 21. The blowing device 23 comprises a blowing fan 231 and a flow guide device 232; the inlet of the blowing fan 231 is arranged corresponding to the air inlet 12; the deflector 232 includes a deflector housing 2321; the fluid-guiding housing 2321 includes a first wall 2322; the first wall surface 2322 is arranged close to the paper supporting device 21; the first wall surface 2322 and the top surface of the flow guide shell 2321 are connected with a flow guide inclined surface 2323 which is obliquely arranged; the air outlet 2324 is disposed at the top end of the first wall 2322, extends toward the diversion inclined surface 2323, and is close to the top surface of the diversion housing 2321.

The blowing device 23 comprises a fixing support plate 234; the fixed support plate 234 is connected with the back of the flow guide shell 2321; the fixing plate 234 extends a support 2341 toward the indentation unit 3. By providing a diversion ramp 2323; the wind current is blown out from the wind outlet 2324 obliquely and upwards; so that the wind can drive the paper to approach the paper feeding suction device 222. The supporting effect on the paper is improved by arranging the supporting piece 2341.

A second wall 2325 extends downwards from the first wall 2322; the second wall surface 2325 is formed to protrude toward the sheet supporting device 21. A flow guide cavity 2326 is formed on the first wall surface 2322, the second wall surface 2325, the top surface of the flow guide shell 2321 and the back surface of the flow guide shell 2321; the outlet of the blowing fan 231 is communicated with the flow guide cavity 2326; a movably arranged flow guide part 233 is arranged in the flow guide cavity 2326; the flow guide member 233 is provided with a flow guide outlet 2331; the diversion outlet 2331 is communicated with the diversion cavity 2326 and the air outlet 2324.

As shown in fig. 1, 4, 5, 7, 9; the air inlet 12 is communicated with the air outlet 2324; the air flow generated by the blowing device 23 passes through the air outlet 2324 and is blown to the paper feeding device 22; the sheet feeding device 22 includes a sheet feeding conveying device; a paper feeding adsorption device 222 is mounted on the paper feeding conveying device; the wind flow drives the paper to approach the paper feeding adsorption device 222; the paper feed suction device 222 sucks the approaching paper; the sheet feeding conveyor carries the sheet into the sheet feeding path 25.

As shown in fig. 2, 5 and 9, the flow guide member 233 is connected with a flow guide shaft 2332; the guide shaft 2332 penetrates through the frame 1; the blowing device 23 further comprises a blowing adjusting device 26; the blowing adjustment device 26 includes a blowing adjustment member 261 and a blowing adjustment bracket 262; the blowing adjusting part 261 is connected with the blowing adjusting bracket 262; the blowing adjusting bracket is connected with one end of the guide shaft 2332; in this embodiment, the blowing adjuster 261 is a screw shaft; the blowing adjusting piece 261 drives the blowing adjusting bracket 262 to rotate around the axis of the blowing adjusting piece 261; the blowing adjustment bracket 262 drives the diversion outlet 2331 to be close to or far away from the air outlet 2324. The position of the diversion outlet 2331 is changed by adjusting the diversion axis 2332; thereby changing the size of the airflow passing through the outlet 2324. Therefore, the size of the air flow can be adjusted according to paper made of different materials. The diversion outlet 2331 is close to the air outlet 2324 by rotating the blowing adjusting bracket in one direction; the air blowing adjusting bracket rotates towards the other direction to enable the diversion outlet 2331 to be far away from the air outlet 2324; the structure is simple.

As shown in fig. 5, 8, 9; the air blowing device 23 further includes a paper separating plate 235 and a paper separating device 236; the paper separating support 235 includes a first separating support 2352 and a separating side plate 2353; two separating side plates 2353 are provided; a first separation support plate 2352 is positioned between and connected to the two separation side plates 2353; the first separating support plate 2352 is connected with the second wall surface 2325 and is arranged 211 close to the paper supporting platform; the separation side plate is connected to a side surface of the fluid guide housing 2321.

The paper separating device 236 includes a separating member 2361; a separation adjusting rod 2362, a separation adjusting seat 2363 and a separation connecting piece 2364; the separation adjusting seat 2363 is fixed on the side surface of the flow guide shell 2321; the separate adjustment seat 2363 is provided with a threaded hole (not shown in the drawings); in this embodiment, the separate adjustment lever 2362 is a threaded shaft; one end of the separating link 2364 is connected to the bottom of the separating link 2361; the separation adjusting rod 2362 penetrates through the threaded hole to be connected with the other end of the separation connecting piece 2364; as shown with reference to FIG. 11; a movable groove 2351 is arranged at one end of the paper separation support plate 235 close to the paper feeding adsorption device; the separating piece 2361 is movably disposed in the movable groove.

A separating contact 2365 extends from the top of separating element 2361 toward shutter 24; when the sheet enters the sheet feed path 25; the adjacent attached sheets are in contact with a separation contact 2365; and separated by the separation contact 2365; this allows individual sheets to enter the sheet feed path 25. In this embodiment, the rotating separation adjusting rod is a threaded shaft; the separation connecting piece 2364 is driven to move by rotating the separation adjusting rod 2362; disconnecting link 2364 moves disconnecting link 2365 closer to or further away from shutter 24; the distance between separation contact 2365 and shutter 24 is set in advance according to the thickness of the paper sheet. Is convenient to use. After the overlapped paper is contacted with the separating piece; the separating piece blocks the paper below; the paper positioned above enters the paper feeding channel under the action of the paper feeding device; this achieves separation of the overlapped sheets.

As shown in fig. 1, 2, 3, 7, 11; two sides of the frame 1 are provided with movable grooves 13; the sheet supporting device 21 includes a sheet supporting table 211 and a supporting drive device 212; the paper supporting table 211 is used for supporting paper; the paper supporting platform 211 is provided with a movable bracket (not shown) protruding from both sides.

The supporting driving device 212 includes a supporting driving motor 2121 and a supporting transmission device; two bearing transmission devices are arranged; a bearing transmission device is arranged on one side of the frame; the other bearing transmission device is arranged on the other side of the frame; the bearing transmission device comprises a bearing transmission wheel I2122, a bearing transmission wheel II 2123, a bearing transmission wheel III 2124 and a bearing sliding device; the fixing piece for supporting the driving wheel II 2123 is arranged close to the top surface of the frame 1; the fixing parts of the bearing driving wheel I2122 and the bearing driving wheel III 2124 are arranged close to the bottom surface of the frame 1; the support driving motor 2121 is connected with a support driving wheel (not shown in the figure); the bearing driving wheel is meshed with a bearing driving wheel I2122; as shown with reference to FIG. 4; a bearing transmission shaft 2125 is connected between the two bearing transmission wheels I2122; a bearing driving wheel four 2126 is arranged at one end of the bearing driving shaft 2125 close to the bearing driving motor 2121.

A supporting slide mechanism comprises two lifting fixing pieces 2131; a lifting fixing piece 2131 is arranged close to the bearing driving wheel II 2123; another lifting fixing piece 2131 is arranged close to the bearing driving wheel III 2124; a lifting shaft 2132 is connected between the two lifting fixing pieces 2131; the lifting shaft 2132 is provided with a movably arranged lifting bearing seat 2133; a movable bracket passes through a movable groove 13 and is connected with a lifting bearing seat 2133; a bearing transmission chain is connected between the upper end of the lifting bearing block 2133 and the lower end of the lifting bearing block 2133; the bearing transmission chain is sleeved on the bearing transmission wheel II 2123, the bearing transmission wheel III 2124 and the bearing transmission wheel IV 2126.

The supporting drive device 212 drives the paper supporting table 211 to move closer to or away from the paper feeding suction device 222. The surface of the paper supporting platform 211 is provided with a movably arranged paper blocking piece 214. A sheet accommodating space is formed between the sheet stopper 214, the sheet feed suction device 222, and the sheet support table 211. The paper stopper is movably disposed on the paper supporting table 211, which facilitates adjustment of the size of the accommodating space, so as to be adapted to papers of different sizes. In the present embodiment; the paper supporting table 211 is a magnetic paper supporting table 211; the paper blocking piece is a magnetic paper blocking piece; the paper stopper is attracted to the paper supporting table 211.

As shown in fig. 2 and 7; the paper feeding and conveying device comprises a first conveying roller 2211 and a second conveying roller 2212; the paper feeding adsorption device 222 is arranged between the first conveying roller 2211 and the second conveying roller 2212; a conveying belt 2213 is sleeved on the first conveying roller 2211, the paper feeding adsorption device 222 and the second conveying roller 2212; the conveying belt 2213 is provided with an adsorption through hole 2214 communicated with the paper feed adsorption device 222; the first conveying roller 2211 is connected with a first conveying transmission shaft 2215; one end of the first conveying transmission shaft 2215 is connected with one end of the second conveying transmission shaft 2217 through a coupler 2216; the other end of the second conveying transmission shaft 2217 is connected with a conveying transmission wheel 2218; the paper feed driving device 223 is mounted on the frame 1; the paper feed driving device 223 is connected with a conveying driving wheel 2231; the conveying driving wheel 2231 is meshed with the conveying driving wheel 2218; in the present embodiment, the paper feed driving device 223 is a motor. The paper feeding suction device 222 is a suction box; the paper feeding suction device 222 is connected with a suction fan 224; the suction fan 224 is installed on the outer wall surface of the frame 1. The sheet feeding suction device 222 sucks the sheet onto the conveyance belt 2213; to conform the paper to the conveyor belt 2213; the conveying effect is good. The first conveying transmission shaft 2215 and the second conveying transmission shaft 2217 are connected through a coupler 2216; the first conveying transmission shaft 2215 is separated from the second conveying transmission shaft 2217 by removing the coupling 2216; make things convenient for paper feed conveyor's dismouting.

The air flow blown out from the air outlet drives the paper to approach the paper feeding device; the adsorption effect of the paper feeding adsorption device on paper is improved; so that the paper can better enter the paper feed channel. By arranging a paper feed channel; the paper is beneficial to the stable conveying of the paper; meanwhile, the paper supporting platform is movably arranged through the paper supporting device; the paper supporting platform can be close to or far away from the paper feeding adsorption device; thus, the height of the paper accommodating space can be adjusted; the position of the paper bearing table can be adjusted according to the distance between the uppermost layer of paper of the paper bearing table and the paper feeding adsorption device; avoiding reducing the paper on the paper supporting platform; the distance between the residual paper and the paper feeding adsorption device is increased; the situation that the paper feeding adsorption device cannot adsorb paper occurs. The paper feeding function of the paper is ensured.

Claims

1. A feeding device is arranged on a frame for use; comprises a paper feeding unit; the paper feeding unit is used for conveying paper; the method is characterized in that: the paper feeding unit comprises a paper supporting device, a paper feeding device and a blowing device; the paper supporting device is positioned at one end of the frame; the blowing device is close to the other end of the rack; the paper feeding device is positioned above the paper supporting device and the blowing device; a paper feeding channel is formed between the paper feeding device and the blowing device;

2. A feeding device according to claim 1, characterized in that: the device also comprises a shielding plate; the paper feeding device is arranged on one side of the rack; the shielding plate is arranged on the other side of the rack; one end of the baffle plate is positioned above the blowing device; the other end of the baffle plate is positioned above the paper supporting platform; a paper feeding channel is formed between the shielding plate and the blowing device.

3. A feeding device according to claim 2, characterized in that: the shielding plate is fixedly connected with one side of the rack; the lower end face of the baffle plate is flush with the lower end face of the paper feeding conveying device.

4. A feeding device according to claim 1, characterized in that: the blowing device comprises a blowing fan and a flow guide device; the inlet of the blowing fan is arranged corresponding to the air inlet; the flow guide device comprises a flow guide shell; the air outlet is arranged on the flow guide shell; the flow guide shell is provided with a flow guide cavity; the outlet of the blowing fan is communicated with the flow guide cavity; a movably arranged flow guide piece is arranged in the flow guide cavity; the flow guide piece is used for adjusting the size of the air flow passing through the air outlet.

5. A feeding device according to claim 4, characterized in that: the flow guide piece is connected with a flow guide shaft; the flow guide piece is provided with a flow guide outlet; the diversion outlet is communicated with the diversion cavity and the air outlet; the guide shaft penetrates through the frame; the blowing device also comprises a blowing adjusting device; the blowing adjusting device comprises a blowing adjusting piece and a blowing adjusting bracket; the blowing adjusting piece is connected with the blowing adjusting bracket; the blowing adjusting bracket is connected with one end of the flow guide shaft; the blowing adjusting part drives the blowing adjusting bracket to rotate around the blowing adjusting part; the blowing adjusting bracket drives the flow guide outlet to be close to or far away from the air outlet.

6. A feeding device according to claim 4, characterized in that: the flow guide shell comprises a first wall surface; the first wall surface is arranged close to the paper supporting device; the first wall surface and the top surface of the flow guide shell are connected with a flow guide inclined plane which is obliquely arranged; the air outlet extends to the flow guiding inclined plane at the top end of the wall surface and is close to the top surface of the flow guiding shell.

7. A feeding device according to claim 1, characterized in that: the paper feeding and conveying device comprises a first conveying roller and a second conveying roller; the paper feeding adsorption device is arranged between the first conveying roller and the second conveying roller; a conveying belt is sleeved on the first conveying roller, the paper feeding adsorption device and the second conveying roller; the conveying belt is provided with an adsorption through hole communicated with the paper feed adsorption device; the conveying roller is connected with a first conveying transmission shaft; one end of the first conveying transmission shaft is connected with one end of the second conveying transmission shaft through a coupler; the other end of the second conveying transmission shaft is connected with a paper feeding driving device.

8. A feeding device according to claim 1, characterized in that: the blowing device extends to a direction far away from the paper feeding device to form a bearing piece.

9. A feeding device according to claim 1, characterized in that: the surface of the paper supporting platform is provided with a movably arranged paper stop; a paper accommodating space is formed among the paper blocking piece, the paper feeding adsorption device and the paper bearing platform.

10. A feeding device according to claim 1, characterized in that: the bearing driving device comprises a bearing driving motor and a bearing transmission device; two bearing transmission devices are arranged; a bearing transmission device is arranged on one side of the frame; the other bearing transmission device is arranged on the other side of the frame; the bearing transmission device comprises a bearing transmission wheel I, a bearing transmission wheel II, a bearing transmission wheel III and a bearing sliding device; the second bearing transmission wheel fixing piece is arranged close to the top surface of the frame; the first bearing transmission wheel and the third bearing transmission wheel are arranged close to the bottom surface of the frame; the bearing driving motor is connected with a bearing driving wheel; the bearing driving wheel is meshed with a bearing driving wheel I; a bearing transmission shaft is connected between the two bearing transmission wheels I; a bearing driving wheel IV is arranged at one end of the bearing transmission shaft close to the bearing driving motor;

a supporting slide device comprises two lifting fixing pieces; a lifting fixing piece is arranged close to the bearing transmission wheel II; the other lifting fixing piece is arranged close to the bearing transmission wheel III; a lifting shaft is connected between the two lifting fixing pieces; the lifting shaft is provided with a movable lifting bearing seat; movable grooves are arranged on two sides of the frame; the two sides of the paper supporting platform are convexly provided with a movable bracket; a movable bracket passes through a movable groove and is connected with a lifting bearing seat; a bearing transmission chain is connected between the upper end of the lifting bearing seat and the lower end of the lifting bearing seat; the bearing transmission chain is sleeved on the bearing transmission wheel II, the bearing transmission wheel III and the bearing transmission wheel IV.