CN216071662U

CN216071662U - Automatic feeding device of paper case for color printing equipment

Info

Publication number: CN216071662U
Application number: CN202122420647.8U
Authority: CN
Inventors: 晋海涛
Original assignee: Anhui Changjiang Color Printing And Packaging Co ltd
Current assignee: Anhui Changjiang Color Printing And Packaging Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-03-18
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses an automatic feeding device of a paper shell for color printing equipment, which comprises a base, a conveyor belt, a vertical frame, a first transverse frame and a second transverse frame, wherein the base is horizontally placed on the ground, a transmission mechanism is arranged in the base, the top of the transmission mechanism is provided with the conveyor belt positioned on the top surface of the base, the vertical frames positioned on the two sides of the top surface of the base are fixedly arranged on the two sides of the conveyor belt, fixed blocks are fixedly arranged on the opposite inner walls of the vertical frames, a feeding frame is fixedly arranged between the fixed blocks, the first transverse frame is fixedly arranged on the top of one end of the vertical frame, the paper shell falls on the conveyor belt due to self gravity by storing the paper shell in the feeding frame, then a first motor is started, a rotating shaft is rotated after the first motor is started to drive a first transmission rod to rotate, the first transmission rod is driven to rotate after the first transmission rod is rotated, and the first transmission rod is in transmission engagement with the second transmission gear through a toothed chain, so that the second transmission rod is driven to rotate, the transmission gear II is coaxially and fixedly arranged on one side of the transmission wheel I forming the transmission belt.

Description

Automatic feeding device of paper case for color printing equipment

Technical Field

The utility model relates to the technical field of automatic feeding equipment, in particular to an automatic feeding device of a paper shell for color printing equipment.

Background

The paper shell is thick paper pages which are formed by processing various paper pulps and interweaving fibers, the paper shell needs to be fixed firstly and needs to be cut in the paper shell manufacturing process, and then the cut paper boards are transported to a conveyor belt to be manufactured on the next step, so that the paper shell feeding device is used for feeding the paper shell, the feeding efficiency can be greatly improved, and the production efficiency is further improved. In prior art, the cardboard loading attachment drives the sucking disc through the PLC circuit usually and adsorbs the cardboard and carry out the material loading, and the sucking disc can be impaired after long-time the use, causes easily to adsorb not jail, and the cardboard drops at the material loading in-process, influences the speed that the cardboard went up the material loading toward the conveyer belt, needs often to maintain the device, for this reason we propose a colored printing equipment with automatic feeding attachment of cardboard be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic feeding device of a paper shell for a color printing device, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an automatic feeding device of colored printing equipment for paper case, includes base, conveyer belt, grudging post, crossbearer one, crossbearer two, the base level is placed in ground, the inside drive mechanism that is provided with of base, drive mechanism's top is provided with the conveyer belt that is located the base top surface, the both sides fixed mounting of conveyer belt has the grudging post that is located base top surface both sides, the equal fixed mounting of grudging post subtend inner wall has the fixed block, fixed mounting has the work or material rest between the fixed block, the one end top fixed mounting of grudging post has crossbearer one, the other end top fixed mounting of grudging post has crossbearer two, crossbearer one and crossbearer two phase level set up and between vertical fixation install the guide rail, the guide way has been seted up to guide rail both sides outer wall, be provided with pressing means on the guide rail.

Preferably, the conveyer belt includes transfer gear one, transfer gear two, transfer gear three, track, installation pole, the both sides centre of a circle department of transfer gear one, transfer gear two, transfer gear three all rotates the one end of installing the installation pole, the other end fixed mounting of installation pole is at the base top surface, one side of transfer gear one is connected with drive mechanism, the wheel face of transfer gear one, transfer gear two, transfer gear three is provided with the track, the track is the closed form of ring and the fixed mounting that the surface evenly arranged has the ejector pad, transfer gear one, transfer gear two, transfer gear three cross track intermeshing.

Preferably, drive mechanism includes motor one, transfer line one, drive gear one, toothed chain, drive gear two, motor one fixed mounting is at the inside cavity of base, the coaxial fixed mounting in pivot of motor one has the one end of transfer line one, the other end fixed mounting of transfer line one has drive gear one, drive gear one is provided with toothed chain and connects drive gear two, the coaxial fixed mounting of drive gear two is in one side of transfer gear one, the toothed chain is the closed form of ring, drive gear one, drive gear two pass the toothed chain and transmit the meshing mutually.

Preferably, the pressing mechanism comprises a frame box, a second motor, a second transmission rod, a third transmission gear, a pressing rod, a pressing plate and a telescopic groove, wherein the frame box is transversely provided with a sliding groove for communicating the outer walls of the two sides, the frame box is arranged on the guide rail in a sliding way through the sliding groove, the upper side and the lower side of the sliding groove are both rotatably provided with pulleys which are uniformly distributed, the pulleys are in sliding fit with the guide grooves arranged on the outer walls of the two sides of the guide rail, the telescopic groove is vertically arranged on one side of the sliding groove, the pressing rod is arranged in the telescopic groove in a sliding way, the outer wall of one side of the pressing rod is fixedly provided with tooth blocks which are regularly distributed, the top of the pressing rod is fixedly provided with the pressing plate, the second motor is fixedly arranged in a cavity arranged in the frame box, the rotating shaft of the second motor is coaxially and fixedly provided with one end of the second transmission rod, the other end of the second transmission rod is coaxially and fixedly provided with the third transmission gear, and the third transmission gear is in transmission meshing with a tooth block, one side of which is fixedly arranged on the side wall of the pressing rod.

Preferably, the feeding frame is communicated up and down, and a gap which can pass through the push block is reserved between the feeding frame and the conveying belt.

Compared with the prior art, the utility model has the beneficial effects that:

1. the paper shells are stored in the feeding frame, the paper shells fall on the conveying belt due to self gravity, then the motor I is started, the rotating shaft is rotated after the motor I is started to drive the transmission rod I to rotate, the transmission rod I drives the transmission gear I to rotate after the transmission rod I rotates, the transmission gear I is in transmission engagement with the transmission gear II through the toothed chain, the transmission gear II is driven to rotate, the transmission gear II is coaxially and fixedly arranged on one side of the conveying wheel I forming the conveying belt, the transmission wheel I rotates, the transmission wheel I, the transmission wheel II and the transmission wheel tee are in transmission engagement through the crawler belt, the whole conveying belt moves to drive articles on the crawler belt to finish conveying work, a gap which can be passed through by a pushing block fixedly arranged on the crawler belt is reserved between the feeding frame and the conveying belt, the dropped paper shells can be taken away when the pushing block passes through, and the paper shells on the feeding frame have space, the automatic paper feeding device can be sequentially queued on the crawler belt and taken away by the push block, so that the automatic paper feeding device has the function of automatic feeding, a user only needs to store a paper shell in the feeding frame, the time of the user is greatly saved, the installation and the replacement are more convenient and faster due to the simple structure, and the feeding efficiency is greatly improved;

2. the paper shell blocked in the feeding frame is pressed by the pressing mechanism arranged on the guide rail fixedly arranged between the cross frame I and the cross frame II fixedly arranged at the tops of the two ends of the vertical frame, so that the paper shell normally drops, the guide rail is provided with guide grooves at the two sides, the guide rail is provided with a frame box which is in sliding fit with the guide rail and the chutes communicated with the outer walls of the two sides, the upper and lower opposite groove surfaces of the chutes are respectively provided with uniformly arranged pulleys in a rotating way, the frame box can move on the guide rail more smoothly through the sliding fit between the pulleys and the chutes, when the feeding frame needs to be dredged, the frame box is moved to the top of the feeding frame, the motor II is started, the rotating shaft can drive the transmission rod II which is coaxially and fixedly arranged to rotate after the motor II is started, the transmission rod II can drive the transmission gear III which is coaxially and fixedly arranged at one end to rotate, and the transmission gear III can drive the gear block which is meshed with one side transmission, because tooth piece fixed mounting is at the lateral wall according to the depression bar, so according to the depression bar through tooth piece and the three transmission engagement of drive gear driven and do concertina movement in flexible inslot, and according to the bottom fixed mounting of depression bar there is the press platen, push down the last work or material rest mediation that the press platen will block up through starter motor two, thereby this experiment is novel to possess good reply fault ability, need not dredge and make and will press the press platen up-regulation, it just can to push away guide rail one end with the frame box, and is very convenient, easy to operate when letting personnel use.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of a pressing mechanism according to the present invention.

In the figure: 1. a base; 2. a conveyor belt; 21. a first transmission wheel; 22. a second conveying wheel; 23. a third conveying wheel; 24. a crawler belt; 241. a push block; 25. mounting a rod; 3. erecting a frame; 31. a fixed block; 32. a feeding frame; 4. a first transverse frame; 5. a second transverse frame; 6. a transmission mechanism; 61. a first motor; 62. a first transmission rod; 63. a first transmission gear; 64. a toothed chain; 65. a second transmission gear; 7. a guide rail; 71. a guide groove; 8. a pressing mechanism; 81. a rack box; 811. a chute; 812. a pulley; 82. a second motor; 83. a second transmission rod; 84. a third transmission gear; 85. a pressing lever; 851. a tooth block; 86. a pressing plate; 87. a telescopic groove.

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. 1-3, the present invention provides a technical solution: an automatic feeding device of a paper shell for a color printing device comprises a base 1, a conveyor belt 2, a vertical frame 3, a first cross frame 4 and a second cross frame 5, wherein the base 1 is horizontally placed on the ground, the interior of the base 1 is provided with the transmission mechanism 6, the top of the transmission mechanism 6 is provided with the conveyor belt 2 positioned on the top surface of the base 1, two sides of the conveyor belt 2 are fixedly provided with the vertical frames 3 positioned on two sides of the top surface of the base 1, opposite inner walls of the vertical frames 3 are fixedly provided with fixed blocks 31, a feeding frame 32 is fixedly arranged between the fixed blocks 31, the top of one end of the vertical frame 3 is fixedly provided with the first cross frame 4, the paper shell is stored in the feeding frame 32 and falls on the conveyor belt 2 due to self gravity, then the first motor 61 is started, the rotating shaft can be rotated to drive the first drive transmission rod 62 to rotate after the first transmission rod 62 rotates to drive the first transmission gear 63 to be meshed with the second transmission gear 65 through a toothed chain 64, therefore, the second transmission gear 65 is driven to rotate, the second transmission gear 65 is coaxially and fixedly installed on one side of the first transmission wheel 21 forming the transmission belt 2, so that the first transmission wheel 21 rotates, the first transmission wheel 21, the second transmission wheel 22 and the third transmission wheel 23 are in transmission engagement through the crawler belt 24, so that the whole transmission belt 2 moves to drive articles on the crawler belt 24 to complete the conveying work, a gap through which a pushing block 241 fixedly installed on the crawler belt 24 passes is reserved between the feeding frame 32 and the transmission belt, so that the dropped paper shells can be taken away when the pushing block 241 passes through, the upper paper shells have space and can be sequentially queued to fall on the crawler belt 24 and taken away by the pushing block 241, thereby the automatic feeding device has the automatic feeding function, a user only needs to store the paper shells in the feeding frame 32, the time of the user is greatly saved, and the installation and the replacement are more convenient due to the simple structure, and greatly improves the feeding efficiency.

Referring to fig. 1, a cross frame II 5 is fixedly installed at the top of the other end of the vertical frame 3, a guide rail 7 is vertically and fixedly installed between a cross frame I4 and the cross frame II 5, guide grooves 71 are formed in the outer walls of the two sides of the guide rail 7, a pressing mechanism 8 is arranged on the guide rail 7, the conveyor belt 2 comprises a first conveyor wheel 21, a second conveyor wheel 22, a third conveyor wheel 23, a crawler belt 24 and an installation rod 25, the circle centers of the two sides of the first conveyor wheel 21, the second conveyor wheel 22 and the third conveyor wheel 23 are respectively and rotatably installed with one end of the installation rod 25, the other end of the installation rod 25 is fixedly installed on the top surface of the base 1, one side of the first conveyor wheel 21 is connected with a transmission mechanism 6, the wheel surfaces of the first conveyor wheel 21, the second conveyor wheel 22 and the third conveyor wheel 23 are respectively provided with the crawler belt 24, the crawler belt 24 is fixedly installed with push blocks 241 which are closed in a circular ring shape and are uniformly distributed on the surface, the first conveyor wheel 21, the second conveyor wheel 22 and the third conveyor wheel 23 are mutually engaged in a transmission way through the crawler belt 24, firstly, paper shells needing to be fed are stored in the feeding frame 32, then a first motor 61 fixedly installed in the base 1 is started, the first motor 61 starts to rotate a rotating shaft after being started, the rotating shaft drives a first transmission rod 62 coaxially and fixedly installed with the rotating shaft to rotate after rotating, the first transmission rod 62 drives a first transmission gear 63 fixedly installed at one end to rotate after rotating, the first transmission gear 63 is in transmission engagement with a second transmission gear 65 through a toothed chain 64, so that the second transmission gear 65 is also driven by the first transmission gear 63 through the toothed chain 64 after rotating, the second transmission gear 65 is coaxially and fixedly installed at one side of a first transmission wheel 21 forming the transmission belt 2, so that the first transmission wheel 21 starts to rotate, the second transmission wheel 22 and a third transmission wheel 23 which are in transmission engagement are driven to rotate through the crawler belt 24, the transmission belt 2 starts to work, the paper shells abutting against the crawler belt 24 are pushed away and conveyed through a pushing block 241 fixedly installed on the crawler belt 24 after the transmission belt 2 is started, while the lower paper shell is carried away.

Referring to fig. 2, the transmission mechanism 6 includes a first motor 61, a first transmission rod 62, a first transmission gear 63, a toothed chain 64, and a second transmission gear 65, the first motor 61 is fixedly installed in the inner cavity of the base 1, one end of the first transmission rod 62 is coaxially and fixedly installed on a rotating shaft of the first motor 61, the other end of the first transmission rod 62 is fixedly installed with the first transmission gear 63, the first transmission gear 63 is provided with the toothed chain 64 to connect with the second transmission gear 65, the second transmission gear 65 is coaxially and fixedly installed on one side of the first transmission wheel 21, the toothed chain 64 is in a ring closed shape, the first transmission gear 63 and the second transmission gear 65 are in transmission engagement with each other through the toothed chain 64, the paper case blocked in the loading frame 32 is pressed through the pressing mechanism 8 installed on the guide rail 7 fixedly installed between the first cross frame 4 and the second cross frame 5 fixedly installed on the tops of the two ends of the vertical frame 3, so that the paper case normally drops because the guide grooves 71 are formed on two sides of the guide rail 7, the guide rail 7 is provided with a frame box 81 which is matched with the guide rail 7 in a sliding way by a sliding chute 811 communicated with the outer walls of the two sides, the pulleys 812 which are uniformly distributed are rotatably arranged on the upper and lower opposite groove surfaces of the sliding groove 811, the movement of the rack box 81 on the guide rail 7 is smoother through the sliding fit between the pulleys 812 and the sliding groove 811, when the feeding frame 32 needs to be dredged, the frame box 81 is moved to the top of the feeding frame 32, the second motor 82 is started, the rotating shaft drives the second transmission rod 83 which is coaxially and fixedly arranged to rotate after the second motor 82 is started, the third transmission gear 84 which is coaxially and fixedly arranged at one end is driven to rotate after the second transmission rod 83 rotates, the third transmission gear 84 drives the tooth block 851 which is meshed with one side in a transmission manner after rotating, because the tooth block 851 is fixedly installed on the sidewall of the pressing rod 85, the feeding frame 32 is communicated with the upper and lower parts, and a gap through the pushing block 241 is left between the feeding frame 32 and the conveyor belt 2.

Referring to fig. 3, the pressing mechanism 8 includes a rack box 81, a second motor 82, a second transmission rod 83, a third transmission gear 84, a pressing rod 85, a pressing plate 86 and a telescopic slot 87, wherein the rack box 81 is transversely provided with a sliding slot 811 communicating outer walls of two sides, the rack box 81 is slidably arranged on the guide rail 7 through the sliding slot 811, pulleys 812 uniformly arranged are rotatably arranged on upper and lower opposite slot surfaces of the sliding slot 811, the pulleys 812 are in sliding fit with guide slots 71 formed on outer walls of two sides of the guide rail 7, the telescopic slot 87 is vertically formed on one side of the sliding slot 811, the pressing rod 85 is slidably arranged in the telescopic slot 87, a tooth block 851 regularly arranged is fixedly arranged on an outer wall of one side of the pressing rod 85, the pressing plate 86 is fixedly arranged on the top of the pressing rod 85, the second motor 82 is fixedly arranged in a cavity formed in the rack box 81, one end of the second transmission rod 83 is coaxially and fixedly arranged on a rotating shaft of the second motor 82, the other end of the third transmission gear 84 is coaxially and fixedly arranged on the driving rod 83, the transmission gear III 84 is in transmission engagement with a tooth block 851, one side of which is fixedly arranged on the side wall of the pressing rod 85, the paper shell on the transmission gear III is not supported and falls on the crawler belt 24 and is taken away by the push block 241 at the back, so that the transmission process is repeated until the paper shell stored in the upper material rack 32 is completely transmitted, when the paper shell in the upper material rack 32 is blocked, the rack box 81 arranged on the guide rail 7 in a sliding way is pushed to the top of the upper material rack 32, the motor II 82 is started and then rotates the rotating shaft, the rotating shaft drives a transmission rod II 83 fixedly arranged on the same shaft to rotate, the transmission rod II 83 rotates and then drives a transmission gear III 84 fixedly arranged at one end to rotate, after the transmission gear III 84 rotates, the pressing rod 85 fixedly arranged on the side wall of the tooth block 851 is driven to do telescopic motion in the telescopic groove 87 through the tooth block 851 in transmission engagement with one side, the pressing plate 86 is fixedly arranged at the top of the pressing rod 85, make the pressing plate 86 push down the mediation frame 32 of feeding through control motor two 82, the mediation pushes up the pressing plate 86 after the mediation is accomplished pushes away frame box 81 to guide rail 7 one side, carry the completion back, close motor one 61, so the transmission meshing that pressing rod 85 passes through tooth piece 851 and drive gear three 84 is driven and is made concertina movement in flexible groove 87, and the bottom fixed mounting who presses rod 85 has pressing plate 86, push down the last frame 32 mediation that pressing plate 86 will block up through starter motor two 82, thereby the novel good reply fault capability that possesses of this experiment, do not need the mediation to make and push up pressing plate 86, it just can to push away guide rail 7 one end with frame box 81, therefore great convenience is obtained, easy operation when letting the personnel use.

The working principle is as follows: when the paper feeding device is used, paper shells needing to be fed are stored in the feeding frame 32, the motor I61 fixedly installed in the base 1 is started, the rotating shaft starts to rotate after the motor I61 is started, the rotating shaft drives the transmission rod I62 coaxially and fixedly installed with the rotating shaft to rotate after the rotating shaft rotates, the transmission rod I62 drives the transmission gear I63 fixedly installed at one end to rotate after the rotating shaft rotates, the transmission gear I63 is in transmission engagement with the transmission gear II 65 through the toothed chain 64, the transmission gear II 65 is also driven through the toothed chain 64 after the rotating shaft rotates, the transmission gear II 65 is coaxially and fixedly installed on one side of the transmission wheel I21 forming the transmission belt 2, the transmission wheel I21 starts to rotate, the transmission wheel II 22 and the transmission wheel III 23 which are in transmission engagement are driven to rotate through the crawler belt 24, the transmission belt 2 starts to work, the paper shells of the crawler belt 2 are pushed away and conveyed through the pushing block 241 fixedly installed on the crawler belt 24, the lower paper shell is taken away, the upper paper shell does not support and fall on the crawler belt 24 and is taken away by the push block 241 at the back, so that the conveying process is repeated until the paper shells stored in the upper material rack 32 are completely conveyed, when the paper shells in the upper material rack 32 are blocked, the rack box 81 arranged on the guide rail 7 in a sliding manner is pushed to the top of the upper material rack 32, the motor II 82 is started, the rotating shaft is rotated, the rotating shaft drives the transmission rod II 83 fixedly arranged on the same shaft to rotate, the transmission rod II 83 drives the transmission gear III 84 fixedly arranged at one end to rotate, the transmission gear III 84 drives the pressing rod 85 fixedly arranged with the tooth blocks 851 at the side wall to do telescopic motion in the telescopic groove 87 through the tooth blocks 851 in transmission engagement with one side after rotating, the pressing plate 86 is fixedly arranged at the top of the pressing rod 85, the pressing plate 86 is pressed down to dredge the upper material rack 32 by controlling the motor II 82, after dredging is completed, the frame box 81 is pushed to one side of the guide rail 7 by the upward adjusting pressing plate 86, and after conveying is completed, the first motor 61 is turned off, so that the use of the utility model is completed.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic feeding device of colored printing equipment with paper shell, includes base (1), conveyer belt (2), grudging post (3), crossbearer one (4), crossbearer two (5), its characterized in that: the base (1) is horizontally placed on the ground, a transmission mechanism (6) is arranged in the base (1), the top of the transmission mechanism (6) is provided with a conveyor belt (2) positioned on the top surface of the base (1), two sides of the conveyor belt (2) are fixedly provided with vertical frames (3) positioned on two sides of the top surface of the base (1), fixed blocks (31) are fixedly arranged on the opposite inner walls of the vertical frame (3), a feeding frame (32) is fixedly arranged between the fixed blocks (31), a first transverse frame (4) is fixedly arranged at the top of one end of the vertical frame (3), a second transverse frame (5) is fixedly arranged at the top of the other end of the vertical frame (3), the first transverse frame (4) and the second transverse frame (5) are horizontally arranged and a guide rail (7) is vertically and fixedly arranged between the first transverse frame and the second transverse frame, guide grooves (71) are formed in the outer walls of the two sides of the guide rail (7), and a pressing mechanism (8) is arranged on the guide rail (7).

2. An automatic feeding device of a paper case for a color printing apparatus according to claim 1, characterized in that: conveyer belt (2) are including transfer gear (21), transfer gear two (22), transfer gear three (23), track (24), installation pole (25), the both sides centre of a circle department of transfer gear (21), transfer gear two (22), transfer gear three (23) all rotates the one end of installing installation pole (25), the other end fixed mounting of installation pole (25) is at base (1) top surface, one side of transfer gear (21) is connected with drive mechanism (6), the wheel face of transfer gear (21), transfer gear two (22), transfer gear three (23) is provided with track (24), track (24) are the fixed mounting that the ring closure form and surface were evenly arranged and have ejector pad (241), transfer gear one (21), transfer gear two (22), transfer gear three (23) are through track (24) intermeshing.

3. An automatic feeding device of a paper case for a color printing apparatus according to claim 2, characterized in that: drive mechanism (6) include motor (61), transfer line (62), drive gear (63), toothed chain (64), drive gear two (65), motor (61) fixed mounting is in base (1) inside cavity, the coaxial fixed mounting in pivot of motor (61) has the one end of transfer line (62), the other end fixed mounting of transfer line (62) has drive gear (63), drive gear (63) are provided with toothed chain (64) and connect drive gear two (65), drive gear two (65) coaxial fixed mounting is in one side of transfer gear (21), toothed chain (64) are the ring closure form, drive gear (63), drive gear two (65) pass through toothed chain (64) and pass through the transmission meshing mutually.

4. An automatic feeding device of a paper case for a color printing apparatus according to claim 1, characterized in that: the pressing mechanism (8) comprises a frame box (81), a second motor (82), a second transmission rod (83), a third transmission gear (84), a pressing rod (85), a pressing plate (86) and a telescopic groove (87), wherein a sliding groove (811) for communicating outer walls of two sides is transversely formed in the frame box (81), the frame box (81) is arranged on the guide rail (7) in a sliding mode through the sliding groove (811), pulleys (812) which are uniformly distributed are rotatably arranged on the upper and lower opposite groove surfaces of the sliding groove (811), the pulleys (812) are in sliding fit with guide grooves (71) formed in the outer walls of two sides of the guide rail (7), the telescopic groove (87) is vertically formed in one side of the sliding groove (811), the pressing rod (85) is arranged in the telescopic groove (87) in a sliding mode, gear blocks (851) which are orderly distributed are fixedly installed on the outer wall of one side of the pressing rod (85), and the pressing plate (86) is fixedly installed at the top of the pressing rod (85), the second motor (82) is fixedly installed in a cavity formed in the frame box (81), one end of a second transmission rod (83) is coaxially and fixedly installed on a rotating shaft of the second motor (82), a third transmission gear (84) is coaxially and fixedly installed at the other end of the second transmission rod (83), and the third transmission gear (84) is in transmission engagement with a tooth block 851 (851) fixedly installed on the side wall of the pressing rod (85) at one side.

5. An automatic feeding device of a paper case for a color printing apparatus according to claim 1, characterized in that: the feeding frame (32) is communicated up and down, and a gap which can pass through the push block (241) is reserved between the feeding frame (32) and the conveyor belt (2).