CN216230915U

CN216230915U - Paper feeding mechanism of box pasting machine

Info

Publication number: CN216230915U
Application number: CN202122588882.6U
Authority: CN
Inventors: 伊起权; 闻建华
Original assignee: Wenzhou Hoson Printing Machinery Co ltd
Current assignee: Wenzhou Hoson Printing Machinery Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-08
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a paper feeding mechanism of a box pasting machine, which structurally comprises two frame plates arranged in opposite directions, wherein two support columns are clamped between the frame plates, the two support columns are positioned at the same horizontal height, a plurality of paper feeding assemblies are arranged at the upper ends of the two support columns, through grooves are correspondingly formed in the frame plates at two sides above the support columns, lifting plates are arranged on the frame plates at each side in a sliding mode and are connected with the lifting assemblies, a guide rail is clamped between the lifting plates at the two sides, a first guide piece and a second guide piece are arranged in the front of the guide rail in a sliding mode, a paper blocking piece is connected to the front end of the first guide piece, a first adjusting piece is arranged at the rear end of the first guide piece, a paper blocking piece is connected to the front end of the second guide piece, a second adjusting piece is arranged at the rear end of the second guide piece, and an interval adjusting assembly is connected to the first adjusting piece and the second adjusting piece.

Description

Paper feeding mechanism of box pasting machine

Technical Field

The utility model relates to the technical field of box pasting equipment, in particular to a paper feeding mechanism of a box pasting machine.

Background

In the packaging and printing industry, the box pasting machine is applied as the last process of packaging box processing, the printed and die-cut paperboard is folded and formed and pasted with a paste opening, and the manual box pasting mode is replaced by the machine box pasting, so that the labor cost is reduced, and the efficiency is improved.

The paper feed end of box pasting machine is provided with paper feed mechanism, because the width of different batches of cardboards is different, when meetting the cardboard of different width, needs the staff manual regulation paper feed mechanism to keep off paper feed interval between the paper piece and carry on spacingly to the cardboard, and then leads to meeting the cardboard staff of different width at every turn and all need to adjust paper feed interval repeatedly, very big production continuity and the production efficiency who has influenced the device.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a paper feeding mechanism of a box pasting machine so as to solve the technical problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a stick with paste paper feed mechanism of box machine, frame plate including two settings in opposite directions, press from both sides between the frame plate and be equipped with two support columns, two support columns are in same level and the upper end is provided with a plurality of assemblies of form advancing, both sides frame plate is located support column top correspondence and has seted up logical groove, every side frame plate is located the outside that leads to the groove and all slides and be provided with the lifter plate, both sides lifter plate all is connected with and presss from both sides between lifter assembly and the both sides lifter plate and is equipped with the guide rail, the slide is provided with first guide and second guide before the guide rail, first guide front end is connected with and keeps off paper article and rear end and is provided with first regulating part, second guide front end is connected with and keeps off paper article and rear end and is provided with the second regulating part, first regulating part and second regulating part are connected with interval regulating part.

The scheme has the advantages that: the lifting plates on the two sides drive the guide rails to ascend so as to drive the first guide piece and the second guide piece to ascend, the first guide piece ascends and the second guide piece drives the paper blocking pieces on the two sides to ascend, then the first adjusting piece and the second adjusting piece are matched with the interval adjusting assembly to adjust the interval between the first guide piece and the second guide piece, and the interval between the paper blocking pieces on the two sides is controlled by adjusting the interval between the first guide piece and the second guide piece.

The utility model is further configured to: the interval adjusting assembly comprises a first motor and a second motor, the first motor and the second motor are fixedly connected with the lifting plates on the two sides through connecting pieces respectively, the driving ends of the first motor and the second motor are provided with a first bevel gear and a second bevel gear respectively, a first lead screw and a second lead screw are arranged below the guide rail, two ends of the first lead screw and two ends of the second lead screw penetrate through the lifting plates on each side respectively and extend out of the lifting plates on each side, the left end of the first lead screw is provided with a third bevel gear matched with the first bevel gear, and the right end of the second lead screw is provided with a fourth bevel gear matched with the second bevel gear.

The scheme has the advantages that: when the first guide piece needs to be controlled to move, the first motor is started, the first motor drives the first bevel gear at the driving end to rotate forwards or reversely, and then the first screw rod is driven to rotate, so that the control on the first guide piece can be realized; when the second guide piece needs to be controlled to move, the second motor is started, the second motor enables the second bevel gear at the driving end to rotate forwards or reversely, and then the second screw rod is driven to rotate, and control over the second guide piece can be achieved.

The utility model is further configured to: the first adjusting piece is provided with a first threaded hole matched with the first screw rod, the position, corresponding to the second screw rod, of the first adjusting piece is provided with a first guide hole, the second adjusting piece is provided with a second threaded hole matched with the second screw rod, and the position, corresponding to the first screw rod, of the second adjusting piece is provided with a second guide hole.

The scheme has the advantages that: when the first screw rod rotates, the first screw rod is in threaded fit with the first threaded hole and then drives the first adjusting piece to realize radial reciprocating motion, meanwhile, the stability of the first adjusting piece in the sliding process is effectively improved under the premise that the movement of the adjusting piece is not influenced by the first guide hole, when the second screw rod rotates, the first guide hole is in threaded connection with the second threaded hole and then drives the second adjusting piece to realize radial reciprocating motion, and meanwhile, the second guide hole matched with the first screw rod is formed in the second adjusting piece.

The utility model is further configured to: the lifting assembly comprises a positioning plate arranged on the outer wall surface of the lifting plate and a lifting cylinder located above the lifting plate, the lifting cylinder is fixedly arranged on the outer side of the frame plate through a support frame, the positioning plate is connected with the driving end of the frame plate, a slide rail is arranged on the outer side, located in each through groove, of the frame plate, and a sliding block matched with the slide rail is arranged on the inner wall of the lifting plate.

The scheme has the advantages that: through the cooperation between the slide rail in the logical groove outside and the lifter plate inner wall sliding block, effectively improve the lifter plate in the stability of lift in-process, inject the lift route of lifter plate simultaneously, avoid the lifter plate to take place the offset at the lift in-process.

The utility model is further configured to: the subassembly of form advancing all is provided with the slider including setting up in the location strip of both sides support column top, every location strip top, and both sides slider upper end is connected with the assembly plate jointly, and assembly plate one side front portion is provided with the driving roller, and the frame plate is located assembly plate rear end position department and presss from both sides in opposite directions and is equipped with the jack-post, and the driving roller is rich with the jack-post outer lane and is equipped with the conveyer belt.

The scheme has the advantages that: the assembly plate can need to set up a plurality ofly and install driving roller and conveyer belt, and the interval sets up and adjusts the interval through the cooperation of sliding between slider and the location strip simultaneously between the assembly plate, is convenient for place the cardboard.

The utility model is further configured to: every support column front side all is concave to be equipped with the constant head tank, and the slider front side all has the extension board and extends the corresponding position department that the board is located the constant head tank and seted up the through-hole, and through-hole threaded connection has positioning stud and positioning stud front side to be connected with the location knob.

The scheme has the advantages that: the position of the assembling plate is locked to avoid the position deviation of the assembling plate in the paper feeding process, and the paper feeding stability of the device is guaranteed.

The utility model is further configured to: the paper blocking piece comprises a supporting plate which is fixed and vertically arranged on the front side of the first guide piece or the front side of the second guide piece, the supporting plates on two sides are oppositely provided with paper blocking plates, the upper ends of the paper blocking plates are respectively provided with an inclined plate, and the inclined plates on two sides are inclined towards the side deviating from the direction.

The scheme has the advantages that: the paper boards are effectively limited through the paper blocking boards on the two sides, wherein the inclined plates enable the paper boards to slide into the paper feeding area more smoothly.

The utility model is further configured to: the guide way has been seted up to the backup pad, and the both sides fender cardboard deviate from the side all have with the guide block of guide way adaptation, the guide way top extend have a plurality of with the movable groove of guide block adaptation, the movable groove front side all extend have with guide block adaptation joint groove, the guide block deviates from the concave a plurality of fastening holes that are equipped with of fender cardboard one end.

The scheme has the advantages that: when both sides lifting unit damaged, push the movable groove with the guide block and make the guide block get into the joint groove, then with the position locking of fastener screw in thread groove with the guide block in the joint inslot, and then avoid appearing because lifting unit's damage and make the unable normal condition of work of interval adjusting part.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the zone adjustment assembly of the present invention;

FIG. 3 is a schematic perspective view of the lift assembly of the present invention;

FIG. 4 is a schematic structural diagram of a support pillar and a slider according to the present invention;

fig. 5 is a schematic perspective view of the paper stopper of the present invention.

Reference numerals: 1. a frame plate; 100. a support pillar; 101. a through groove; 102. positioning a groove; 103. an extension plate; 104. a through hole; 105. positioning the stud; 106. positioning a knob; 2. a lifting plate; 200. a guide rail; 201. a first guide member; 202. a second guide member; 203. a first adjustment member; 204. a first threaded hole; 205. a first guide hole; 206. a second adjustment member; 207. a second threaded hole; 208. a second guide hole; 3. a paper stopper; 300. a support plate; 301. a paper blocking plate; 302. a sloping plate; 303. a guide groove; 304. a guide block; 305. a movable groove; 306. a clamping groove; 307. a fastening hole; 4. a first motor; 400. a first bevel gear; 401. a second motor; 402. a second bevel gear; 403. a connecting member; 404. a first lead screw; 405. a third bevel gear; 406. a second lead screw; 407. a fourth bevel gear; 5. positioning a plate; 500. a lifting cylinder; 501. a support frame; 502. a slide rail; 503. a sliding block; 6. a positioning bar; 600. a slider; 601. assembling a plate; 602. a driving roller; 603. a column shaft; 604. and (4) a conveyor belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a paper feeding mechanism of a box pasting machine according to an embodiment of the present invention includes two frame plates 1 disposed opposite to each other, two support columns 100 are sandwiched between the frame plates 1, the two support columns 100 are at the same horizontal height, and a plurality of paper feeding assemblies are disposed at the upper ends of the two support columns 100, through grooves 101 are correspondingly disposed at positions of the two frame plates 1 above the support columns 100, a lifting plate 2 is slidably disposed at an outer side of each frame plate 1 located at the through groove 101, the lifting plates 2 at both sides are connected to the lifting assemblies, a guide rail 200 is sandwiched between the lifting plates 2 at both sides, a first guide 201 and a second guide 202 are slidably disposed at a front side of the guide rail 200, a paper blocking member 3 is connected to a front end of the first guide 201, a first adjusting member 203 is disposed at a rear end of the first guide 201, a second adjusting member 206 is disposed at a front end of the second guide 202, and the first adjusting member 203 and the second adjusting member 206 are connected to an interval adjusting assembly.

When in use, the lifting plates 2 on the two sides are controlled to synchronously ascend through the lifting assembly, the lifting plates 2 on the two sides drive the guide rail 200 to ascend so as to drive the first guide part 201 and the second guide part 202 to ascend, the first guide part 201 ascends and the second guide part 202 drives the paper stoppers 3 on the two sides to ascend, the paper stoppers 3 ascend until the lower end surfaces of the paper stoppers 3 are higher than the upper end surface of the paper feeding assembly, at the moment, the first adjusting part 203 and the second adjusting part 206 realize the adjustment of the distance between the first guide part 201 and the second guide part 202 through the cooperation with the interval adjusting assembly, the distance between the two side paper stoppers 3 is controlled by adjusting the distance between the first guide member 201 and the second guide member 202, a paper feeding section for placing paper sheets is formed between the two side paper stoppers 3, the paper sheets are placed in the paper feeding section after the adjustment is completed, and then the paper sheets are conveyed to the next processing station through the paper feeding assembly.

The interval adjusting assembly comprises a first motor 4 and a second motor 401, the first motor 4 and the second motor 401 are respectively and fixedly connected with the lifting plates 2 at two sides through a connecting piece 403, the driving ends of the first motor 4 and the second motor 401 are respectively provided with a first bevel gear 400 and a second bevel gear 402, a first screw rod 404 and a second screw rod 406 are arranged below the guide rail 200, two ends of the first screw rod 404 and the second screw rod 406 respectively penetrate through and extend out of the lifting plate 2 at each side, the left end of the first screw rod 404 is provided with a third bevel gear 405 matched with the first bevel gear 400, and the right end of the second screw rod 406 is provided with a fourth bevel gear 407 matched with the second bevel gear 402; the first adjusting member 203 is provided with a first threaded hole 204 adapted to the first lead screw 404, the first adjusting member 203 is provided with a first guide hole 205 at a position corresponding to the second lead screw 406, the second adjusting member 206 is provided with a second threaded hole 207 adapted to the second lead screw 406, and the second adjusting member 206 is provided with a second guide hole 208 at a position corresponding to the first lead screw 404.

When the sliding guide is used, when the first guide member 201 needs to be controlled to move, the first motor 4 is started, the first motor 4 drives the first bevel gear 400 at the driving end to rotate forwards or reversely, the first bevel gear 400 is meshed with the third bevel gear 405 to drive the third bevel gear 405 to rotate forwards or reversely, the third bevel gear 405 rotates to drive the first lead screw 404 to rotate, the first adjusting member 203 is provided with a first threaded hole 204 matched with the first lead screw 404, when the first lead screw 404 rotates, the first lead screw is in threaded fit with the first threaded hole 204 to drive the first adjusting member 203 to realize radial reciprocating motion, the first adjusting member 203 drives the first guide member 201 to move radially along the guide rail 200, meanwhile, the first adjusting member 203 is provided with a first guide hole 205 matched with the second lead screw 406, and the first guide hole 205 effectively improves the stability of the first adjusting member 203 in the sliding process on the premise that the movement of the adjusting member is not influenced; when the second guiding element 202 needs to be controlled to move, the second motor 401 is started, the second motor 401 drives the second bevel gear 402 at the driving end to rotate forward or reversely, the second bevel gear 402 is meshed with the fourth bevel gear 407 to drive the fourth bevel gear 407 to rotate forward or reversely, the third bevel gear 405 rotates to drive the second lead screw 406 to rotate, wherein the second adjusting element 206 is provided with a second threaded hole 207 matched with the second lead screw 406, when the second lead screw 406 rotates, the second lead screw 406 is in threaded connection with the second threaded hole 207 to drive the second adjusting element 206 to realize radial reciprocating motion, the second adjusting element 206 drives the second guiding element 202 to move along the guide rail 200 in the radial direction, and meanwhile, the second adjusting element 206 is provided with a second guiding hole 208 matched with the first lead screw 404.

Lifting unit is including setting up in locating plate 5 of lifter plate 2 outer wall face and the lift cylinder 500 that is located the lifter plate 2 top, and lift cylinder 500 passes through support frame 501 fixed the setting in frame plate 1 outside and drive end connection locating plate 5, and frame plate 1 is located the outside of every logical groove 101 and all is provided with slide rail 502, and lifter plate 2 inner wall is provided with the sliding block 503 with slide rail 502 adaptation.

When using, start the lift cylinder 500 of both sides when the synchronous rising of needs lifting unit control both sides lifter plate 2, then control both sides lift cylinder 500 drive end stretches out in step or contracts in, both sides lift cylinder 500 stretches out in step or contracts in step and then drives the lifter plate 2 synchronous lifting of both sides, wherein through the cooperation between the slide rail 502 in the logical groove 101 outside and the 2 inner wall sliding blocks 503 of lifter plate, effectively improve the stability of lifter plate 2 at the lift in-process, prescribe a limit to the lift route of lifter plate 2 simultaneously, avoid lifter plate 2 to take place the offset at the lift in-process.

The paper feeding assembly comprises positioning strips 6 arranged above supporting columns 100 on two sides, a sliding block 600 is arranged above each positioning strip 6, the upper ends of the sliding blocks 600 on the two sides are connected with an assembling plate 601 together, a driving roller 602 is arranged on the front portion of one side of the assembling plate 601, a shaft column 603 is oppositely clamped at the position, located at the rear end of the assembling plate 601, of the frame plate 1, and a conveying belt 604 is arranged around the driving roller 602 and the outer ring of the shaft column 603.

When the paper feeding device is used, after the distance between the paper blocking pieces 3 on the two sides is adjusted, a paper board to be processed is placed above the paper feeding component in a paper feeding interval formed between the paper blocking pieces on the two sides, the paper board is conveyed to the next processing station through the paper feeding component, the specific driving roller 602 rotates to drive the belt pulley around which the outer ring is wound to move, wherein the height of the conveying belt 604 is higher than that of the assembling plate 601, and the conveying belt 604 rotates around the driving roller 602 and the shaft column 603 to convey the paper; the assembling plates 601 can be provided with a plurality of driving rollers 602 and conveyor belts 604 as required, and the assembling plates 601 are arranged at intervals and are matched with the positioning strips 6 in a sliding manner to adjust the distance, so that the paper boards can be conveniently placed; the driving roller 602 is electrically connected to an external control system, which is known in the art and will not be described in detail herein.

The front side of each supporting column 100 is concavely provided with a positioning groove 102, the front side of each sliding block 600 is provided with an extension plate 103, the extension plate 103 is positioned at a corresponding position of the positioning groove 102 and is provided with a through hole 104, and the through hole 104 is internally threaded with a positioning stud 105 and the front side of the positioning stud 105 is connected with a positioning knob 106.

When the position of the assembly plate 601 needs to be fixed in use, the positioning knob 106 is rotated to drive the positioning stud 105 to screw towards the positioning groove 102, the position of the slider 600 is locked, namely the position of the assembly plate 601 is locked, when the position of the assembly plate 601 needs to be cancelled, the reverse operation is performed, the position of the assembly plate 601 is prevented from being deviated in the paper feeding process through the position locking of the assembly plate 601, and the stability of the paper feeding device is ensured.

The paper stopper 3 includes a supporting plate 300 fixed and vertically disposed at the front side of the first guide 201 or the second guide 202, the opposite sides of the supporting plates 300 at two sides are all provided with a paper stopper 301, the upper end of the paper stopper 301 is all provided with a sloping plate 302, and the sloping plates 302 at two sides are all inclined towards the deviating side.

When the paper board is required to be placed, the paper board is placed in the paper feeding interval between the paper blocking members 3 from top to bottom, the paper board is effectively limited by the paper blocking members 301, and the inclined plate 302 enables the paper board to slide into the paper feeding interval more smoothly.

Guide way 303 has been seted up to backup pad 300, the both sides side that deviates from of fender board 301 all have with the guide block 304 of guide way 303 adaptation, the guide way 303 top is extended have a plurality ofly with the movable groove 305 of guide block 304 adaptation, movable groove 305 front side all extend have with guide block 304 adaptation joint groove 306, guide block 304 deviates from the concave a plurality of fastening holes 307 that are equipped with of fender board 301 one end.

When the range adjusting assembly is used, when the lifting assemblies on the two sides are damaged, the guide block 304 is pushed into the movable groove 305 and is made to enter the clamping groove 306, then the fastener is screwed into the threaded groove to lock the position of the guide block 304 in the clamping groove 306, the lower end face of the paper blocking plate 301 is higher than the upper end face of the conveying belt 604 when the guide block 304 is positioned in the clamping groove 306, the range adjusting assembly can normally adjust the movement of the paper blocking members 3 on the two sides, and the situation that the range adjusting assembly cannot normally work due to the damage of the lifting assemblies is avoided.

The standard parts used by the utility model can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, and the detailed description is not repeated.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a stick with paste paper feed mechanism of box machine, is including frame plate (1) of two settings in opposite directions, its characterized in that: two supporting columns (100) are clamped between the frame plates (1), the two supporting columns (100) are positioned at the same horizontal height, a plurality of paper feeding assemblies are arranged at the upper ends of the two supporting columns (100), through grooves (101) are correspondingly formed in the positions, above the supporting columns (100), of the frame plates (1) on two sides, lifting plates (2) are arranged on the outer sides, located in the through grooves (101), of the frame plates (1) on each side in a sliding mode, the lifting plates (2) on two sides are connected with lifting assemblies, guide rails (200) are clamped between the lifting plates (2) on two sides, a first guide piece (201) and a second guide piece (202) are arranged on the front side of the guide rail (200) in a sliding way, the front end of the first guide piece (201) is connected with a paper stop piece (3) and the rear end is provided with a first adjusting piece (203), the front end of the second guide piece (202) is connected with a paper stop piece (3) and the rear end is provided with a second adjusting piece (206), the first adjusting piece (203) and the second adjusting piece (206) are connected with an interval adjusting component.

2. The paper feeding mechanism of a box pasting machine according to claim 1, characterized in that: the interval adjusting assembly comprises a first motor (4) and a second motor (401), the first motor (4) and the second motor (401) are respectively and fixedly connected with the lifting plates (2) on the two sides through connecting pieces (403), driving ends of the first motor (4) and the second motor (401) are respectively provided with a first bevel gear (400) and a second bevel gear (402), a first lead screw (404) and a second lead screw (406) are arranged below the guide rail (200), two ends of the first lead screw (404) and two ends of the second lead screw (406) respectively penetrate through and extend out of the lifting plate (2) on each side, a left end of the first lead screw (404) is provided with a third bevel gear (405) matched with the first bevel gear (400), and a right end of the second lead screw (406) is provided with a fourth bevel gear (407) matched with the second bevel gear (402).

3. The paper feeding mechanism of a box pasting machine according to claim 1, characterized in that: the first adjusting piece (203) is provided with a first threaded hole (204) matched with the first screw rod (404), the first adjusting piece (203) is provided with a first guide hole (205) at a position corresponding to the second screw rod (406), the second adjusting piece (206) is provided with a second threaded hole (207) matched with the second screw rod (406), and the second adjusting piece (206) is provided with a second guide hole (208) at a position corresponding to the first screw rod (404).

4. The paper feeding mechanism of a box pasting machine according to claim 1, characterized in that: lifting unit is including setting up in locating plate (5) of lifter plate (2) outer wall surface and being located lifter plate (2) lift cylinder (500) of top, lift cylinder (500) are fixed to be set up in frame plate (1) outside and drive end through support frame (501) and are connected locating plate (5), the outside that frame plate (1) is located every and leads to groove (101) all is provided with slide rail (502), lifter plate (2) inner wall is provided with sliding block (503) with slide rail (502) adaptation.

5. The paper feeding mechanism of a box pasting machine according to claim 1, characterized in that: the subassembly of form advancing is including setting up in location strip (6) of both sides support column (100) top, every location strip (6) top all is provided with slider (600), both sides slider (600) upper end is connected with assembly plate (601) jointly, assembly plate (601) one side front portion is provided with driving roller (602), frame plate (1) are located assembly plate (601) rear end position department and press from both sides in opposite directions and are equipped with jack-post (603), driving roller (602) and jack-post (603) outer lane winding are equipped with conveyer belt (604).

6. The paper feeding mechanism of the box pasting machine according to claim 5, wherein: every support column (100) front side all is equipped with constant head tank (102) in a concave way, slider (600) front side all has extension board (103) and is located the corresponding position department of constant head tank (102) and has seted up through-hole (104), through-hole (104) female connection has positioning stud (105) and positioning stud (105) front side to be connected with location knob (106).

7. The paper feeding mechanism of a box pasting machine according to claim 1, characterized in that: the paper blocking piece (3) comprises a supporting plate (300) which is fixed and vertically arranged on the front side of the first guide piece (201) or the front side of the second guide piece (202), paper blocking plates (301) are arranged on the opposite sides of the supporting plates (300) on the two sides, inclined plates (302) are arranged at the upper ends of the paper blocking plates (301), and the inclined plates (302) on the two sides incline towards the opposite sides.

8. The paper feeding mechanism of a box pasting machine according to claim 7, wherein: guide way (303) have been seted up in backup pad (300), the side that deviates from of both sides fender board (301) all have with guide block (304) of guide way (303) adaptation, extend above guide way (303) have a plurality ofly with movable groove (305) of guide block (304) adaptation, movable groove (305) front side all extend have with guide block (304) adaptation joint groove (306), guide block (304) deviate from the concave a plurality of fastening holes (307) of fender board (301) one end.