A packaging carton flexible printing device capable of preventing color fading and rapid drying

Abstract

The present application relates to the technical field of packaging carton printing, and particularly relates to a packaging carton flexible printing device capable of preventing color loss and rapid drying. The packaging carton flexible printing device capable of preventing color loss and rapid drying can punch and position the packaging carton, and assist the operator in cutting the packaging carton. The packaging carton flexible printing device capable of preventing color loss and rapid drying comprises a printing machine, a cover plate, a fixing frame, a cutting mechanism and a drying mechanism. The printing machine is connected with the cover plate at the top. The printing machine is connected with two fixing frames through bolts at the left side. The cutting mechanism is arranged on the fixing frame. The drying mechanism is arranged on the fixing frame. The cutting block is pressed downward, so that the cutting block and the supporting block move in opposite directions, thereby punching and positioning the packaging carton after printing, and facilitating the operator to cut and manufacture the packaging carton after printing.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging carton printing technical field, especially to a packaging carton flexible printing device capable of preventing color loss and rapid drying. BACKGROUND

[0002] Carton packaging is widely used in the flow process of products, which can protect the products and facilitate the transportation of the products. The size of the carton is determined by the size of the product to be packaged. In order to improve the identification of the packaging carton and make people clear the product content in the packaging carton, corresponding printing needs to be performed on the packaging carton to show the product content and characteristics in the packaging carton. When the existing device prints the packaging carton, the printing machine uniformly sprays and prints the long-strip-shaped packaging carton. Then, the operator takes out the printed packaging carton and cuts the packaging carton according to the printing interval. Finally, the packaging carton is folded and trimmed to form a carton. In this process, the operator needs to continuously cut the printed packaging carton. The positioning is difficult during the cutting process, and the cutting process also takes a lot of time.

[0003] Therefore, in view of the above problems, the present application provides a packaging carton flexible printing device capable of preventing color loss and rapid drying, which can punch and position the packaging carton and assist the operator in cutting the packaging carton. SUMMARY

[0004] In order to overcome the shortcomings of the existing device that requires the operator to continuously cut the printed packaging carton, the positioning is difficult during the cutting process, and the cutting process also takes a lot of time, the present application provides a packaging carton flexible printing device capable of preventing color loss and rapid drying, which can punch and position the packaging carton and assist the operator in cutting the packaging carton.

[0005] The technical scheme of the present application is as follows: a packaging carton flexible printing device capable of preventing color loss and rapid drying, comprising a printing machine, a cover plate, a fixing frame, a cutting mechanism, and a drying mechanism. The printing machine is connected with the cover plate at the top. Two fixing frames are connected with the left side of the printing machine through bolts. The fixing frame is provided with a cutting mechanism for punching and positioning and cutting the printed packaging carton. The fixing frame is provided with a drying mechanism for drying the printed packaging carton.

[0006] In one of the embodiments, the cutting mechanism comprises a sliding frame, a cutting block, a first spring, a supporting block, a rack and a gear. The sliding frame is slidably connected between the sides of the fixed frames which are close to each other. The cutting block is slidably connected to the upper part of the sliding frame. The first spring is connected between the cutting block and the sliding frame. The supporting block is slidably connected to the lower part of the sliding frame. The first spring is also connected between the supporting block and the sliding frame. The rack is connected to the front and rear sides of the cutting block. The rack is also connected to the front and rear sides of the supporting block. The gear is rotatably connected to the inside of the sliding frame.

[0007] In one of the embodiments, the drying mechanism comprises a fixed frame, a lifting frame, a heating pipe, a first sliding piece, a connecting rod and a bidirectional screw rod. The fixed frame is connected between the sides of the fixed frames which are away from each other. The lifting frame is slidably connected to the fixed frame. The heating pipe is connected to the bottom of the lifting frame. The bidirectional screw rod is rotatably connected to the left side of the upper part of the fixed frame. The first sliding piece is threadedly connected to the front and rear parts of the bidirectional screw rod. The connecting rod is rotatably connected to the top of the first sliding piece. The connecting rod is rotatably connected to the fixed frame.

[0008] In one of the embodiments, the pushing mechanism for automatically punching and positioning the packaging cartons is further included. The pushing mechanism comprises an electric push rod, a first connecting frame, a second connecting frame, a second sliding piece, a second spring and a baffle. The electric push rod is connected to the left side of the printing machine through bolts. The first connecting frame is connected to the extension end of the electric push rod. The first connecting frame is connected to the left side of the lower part of the sliding frame. The second connecting frame is connected to the upper part of the fixed frame through bolts. The second sliding piece is slidably connected to the second connecting frame. The second spring is connected between the second sliding piece and the cutting block. The baffle is rotatably connected to the second connecting frame.

[0009] In one of the embodiments, the blowing mechanism for improving the drying effect of the packaging cartons is further included. The blowing mechanism comprises a fixed plate, a fan, a nut and a screw rod. The fixed plate is connected to the left side of the fixed frame which is close to each other. The screw rod is rotatably connected to the fixed plate. The fan is connected between the sides of the screw rods which are close to each other. The nut is threadedly connected to the side of the screw rod which is away from each other.

[0010] In one of the embodiments, the protection mechanism for protecting the operators is further included. The protection mechanism comprises a protection plate, a limiting piece and a stop block. The protection plate is slidably connected to the lifting frame. The limiting piece is connected to the front upper side of the lifting frame. The stop block is slidably connected to the limiting piece. The stop block is clamped with the protection plate.

[0011] In one of the embodiments, the auxiliary mechanism for supporting and guiding the packaging cartons is further included. The auxiliary mechanism comprises a supporting frame and a pulley. The supporting frame is connected to the left and right sides of the printing machine through bolts. Eight pulleys are rotatably connected to each supporting frame.

[0012] In one of the embodiments, the cutting block is provided with a handle on the top, which facilitates the operator to push the cutting block to cut.

[0013] In one of the embodiments, the rib frame is connected between the second connecting frame and the fixing frame, which can enhance the connection stability of the second connecting frame.

[0014] In one of the embodiments, the protective plate is provided with a pulling groove, which facilitates the adjustment of the protective plate.

[0015] Beneficial effects: 1. By pressing the cutting block downward, the cutting block and the supporting block move in opposite directions, thereby positioning the printed packaging carton, which facilitates subsequent operation of the operator to cut the printed packaging carton.

[0016] 2. By rotating the bidirectional screw rod, the first sliding member moves, thereby adjusting the height of the lifting frame, so that the heating pipe can be close to the packaging carton, thereby quickly heating and drying the wet ink on the packaging carton, avoiding printing problems.

[0017] 3. The first connecting frame is driven by the extension end of the electric push rod to move, so that the second sliding member slides to the left under the guidance of the second connecting frame to extrude the cutting block, realizing the effect of automatically positioning the printed packaging carton, and then slides to the right to reset, so that the cutting block is separated from the packaging carton, reducing the frequency of manual operation of the operator and improving the positioning efficiency.

[0018] 4. By starting the fan, the airflow starts to flow, thereby re-drying the packaging carton after heating and drying, improving the drying effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0020] Figure 2 It is a schematic diagram of part of the three-dimensional structure of the present application.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the cutting mechanism of the present application.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the drying mechanism of the present application.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the advancing mechanism of the present application.

[0024] Figure 6 It is a schematic diagram of part of the structure of the advancing mechanism of the present application.

[0025] Figure 7 It is a structural schematic diagram of the blowing mechanism of the present application.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the protection mechanism of the present application.

[0027] Figure 9 It is a three-dimensional structural schematic diagram of the auxiliary mechanism of the present application.

[0028] In the figure, marked: 1-printing machine, 2-cover plate, 3-fixed frame, 4-cutting mechanism, 41-sliding frame, 42-cutting block, 43-first spring, 44-supporting block, 45-rack, 46-gear, 5-drying mechanism, 51-fixed frame, 52-lifting frame, 53-heating pipe, 54-first sliding piece, 55-connecting rod, 56-bidirectional screw rod, 6-advancing mechanism, 61-electric push rod, 62-first connecting frame, 63-second connecting frame, 64-second sliding piece, 65-second spring, 66-baffle, 7-blowing mechanism, 71-fixed plate, 72-fan, 73-nut, 74-screw, 8-protection mechanism, 81-protection plate, 82-limiting piece, 83-stop block, 9-auxiliary mechanism, 91-supporting frame, 92-pulley. DETAILED DESCRIPTION

[0029] The present application will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0030] A kind of packaging paper box flexible printing device of anti-fading and rapid drying, as shown in Figure 1 And Figure 2 It includes printing machine 1, cover plate 2, fixed frame 3, cutting mechanism 4 and drying mechanism 5, printing machine 1 top is connected with cover plate 2, cover plate 2 can be removed, to facilitate operator to overhaul the inside of printing machine 1, printing machine 1 left side is connected with two fixed frames 3 by bolt, fixed frame 3 is symmetrically distributed in front and back, cutting mechanism 4 is arranged on fixed frame 3, for the hole positioning cutting of printing packaging paper, drying mechanism 5 is arranged on fixed frame 3, for the drying treatment of printing packaging paper.

[0031] After the production of the packaging carton is completed, the corresponding text and pattern printing needs to be carried out on the packaging carton according to the content packaged by the packaging carton. The device can assist the operator to quickly print the packaging carton. First, the packaging carton is sent from the right side of the printing machine 1, the packaging carton is printed by the printing machine 1, and the printed packaging carton is conveyed to the left. After the conveying is finished, the printed packaging carton is heated by the drying mechanism 5, so that the printing ink on the packaging carton is quickly dried. Then, according to the required size of the packaging carton, the cutting mechanism 4 is controlled to punch and position the packaging carton, so that the subsequent operator can cut the packaging carton. During the punching and positioning process, the cutting mechanism 4 moves with the packaging carton. The fixed frame 3 guides the cutting mechanism 4 at this time. After the punching is completed, the cutting mechanism 4 is pushed to reset. In summary, the cutting mechanism 4 punches and positions the printed packaging carton, so that the subsequent operator can cut the packaging carton, and the manufacturing efficiency of the packaging carton is improved.

[0032] As shown in Figure 1 and Figure 3 The cutting mechanism 4 includes a sliding frame 41, a cutting block 42, a first spring 43, a support block 44, a rack 45 and a gear 46. The sliding frame 41 is slidably connected between the mutually close sides of the fixed frame 3. The cutting block 42 is slidably connected to the upper part of the sliding frame 41. The cutting block 42 is used for punching and positioning the printed packaging carton. The cutting block 42 has a handle at the top for the operator to push and cut. Two first springs 43 are connected between the cutting block 42 and the sliding frame 41. The top of the first spring 43 is connected to the cutting block 42, and the bottom of the first spring 43 is connected to the sliding frame 41. The support block 44 is slidably connected to the lower part of the sliding frame 41. The support block 44 is used to support the bottom of the printed packaging carton, so as to avoid the bending of the packaging carton during punching. Two first springs 43 are also connected between the support block 44 and the sliding frame 41. The top of the lower first spring 43 is connected to the sliding frame 41, and the bottom of the lower first spring 43 is connected to the support block 44. The rack 45 is connected to the front and rear sides of the cutting block 42. The rack 45 is also connected to the front and rear sides of the support block 44. The gear 46 is rotatably connected to the inside of the sliding frame 41. The front rack 45 is meshed with the front gear 46, and the rear rack 45 is meshed with the rear gear 46.

[0033] With the completion of the printing of the packaging carton by the printing machine 1, the packaging carton will be pushed out of the material by the printing machine 1 to the left, and then the operator needs to press the cutting block 42 downward according to the required specifications of the packaging carton, and the upper first spring 43 is compressed under stress. The downward pressing of the cutting block 42 will make the upper rack 45 move downward, so that the gear 46 rotates, and the lower rack 45 is driven to move upward, thereby making the support block 44 slide upward, and the lower first spring 43 is also stressed and compressed. That is, pressing the cutting block 42 downward will make the cutting block 42 and the support block 44 move in opposite directions. As the cutting block 42 moves downward, it will punch and position the packaging carton, thereby facilitating subsequent operators to cut the packaging carton. During the cutting process, since the packaging carton is in a continuous leftward movement process, the sliding frame 41 will also slide leftward under the guidance of the fixed frame 3, thereby enabling the cutting block 42 and the support block 44 to always maintain synchronous movement with the packaging carton, avoiding punching errors. After the punching and positioning is completed, release the cutting block 42. At this time, under the action of the first spring 43, the cutting block 42 and the support block 44 will slide to the side away from each other and reset. Finally, push the sliding frame 41 back to the right to reset. As described above, by pressing the cutting block 42 downward, the cutting block 42 and the support block 44 move in opposite directions, thereby punching and positioning the printed packaging carton, facilitating subsequent operators to cut and manufacture the printed packaging carton.

[0034] As shown in Figure 1 and Figure 4 The drying mechanism 5 includes a fixed frame 51, a lifting frame 52, a heating pipe 53, a first sliding piece 54, a connecting rod 55 and a bidirectional screw rod 56. The two fixed frames 3 are connected to each other on one side, and the fixed frame 51 is slidably connected to the lifting frame 52. The bottom of the lifting frame 52 is connected to the heating pipe 53, which is used to heat and dry the printed packaging carton, accelerating the drying time of the printed packaging carton. The upper left side of the fixed frame 51 is rotatably connected to the bidirectional screw rod 56, and the front and rear parts of the bidirectional screw rod 56 are threadedly connected to the first sliding piece 54. The top of the first sliding piece 54 is rotatably connected to the connecting rod 55, and the connecting rod 55 is rotatably connected to the fixed frame 51. Rotating the bidirectional screw rod 56 will make the first sliding piece 54 move towards each other, thereby making the connecting rod 55 rotate, and the lifting frame 52 starts to slide downward.

[0035] Before the printing machine 1 prints the packaging carton, the height of the lifting frame 52 needs to be adjusted according to the thickness of the packaging carton, so that the heating pipe 53 can be close to the packaging carton, improve the efficiency of heating and drying. First, rotate the bidirectional screw rod 56, which will drive the first sliding piece 54 to move towards the side close to each other, so that the connecting rod 55 rotates, and then pushes the lifting frame 52 to move down to close to the packaging carton, realizing the effect of shortening the distance between the heating pipe 53 and the packaging carton. After starting the heating pipe 53, when the printed packaging carton is discharged to the left, the ink on the packaging carton is in a wet state, so the heating pipe 53 can heat and irradiate the ink on the packaging carton, thereby quickly drying and avoiding the ink being scratched, which will cause the printing to fail. After the printing process is completed, the heating pipe 53 is turned off, and then the bidirectional screw rod 56 is rotated in the opposite direction, so that the first sliding piece 54 moves to the side away from each other and resets, so that the connecting rod 55 drives the lifting frame 52 to slide up and reset. In summary, by rotating the bidirectional screw rod 56, the first sliding piece 54 moves, thereby adjusting the height of the lifting frame 52, so that the heating pipe 53 can be close to the packaging carton, thereby quickly heating and drying the wet ink on the packaging carton, avoiding printing problems.

[0036] As shown in Figure 1 , Figure 5 and Figure 6 , it also includes a propulsion mechanism 6, which includes an electric push rod 61, a first connecting frame 62, a second connecting frame 63, a second sliding piece 64, a second spring 65 and a baffle 66. The left side of the printing machine 1 is connected by bolts. The first connecting frame 62 is connected to the lower left side of the sliding frame 41. The upper part of the fixed frame 3 is connected by bolts on the side away from each other. The second connecting frame 63 is connected with the fixed frame 3. The rib frame can enhance the connection stability of the second connecting frame 63. The second sliding piece 64 is slidably connected to the second connecting frame 63. The second connecting frame 63 is divided into two layers of guide partitions. The lower partition is used for sliding guidance of the second sliding piece 64 in the left direction. The upper partition is used for sliding guidance of the second sliding piece 64 in the right direction. The second spring 65 is connected between the second sliding piece 64 and the cutting block 42. The top end of the second spring 65 is connected with the second sliding piece 64. The bottom end of the second spring 65 is connected with the cutting block 42. The baffle 66 is rotatably connected to the second connecting frame 63. The bottom of the baffle 66 is in contact with the inner bottom of the second connecting frame 63. The baffle 66 is used for blocking the second sliding piece 64.

[0037] When the printed packaging carton needs to be punched and positioned, in order to reduce the frequency of manual operation of the operator, the electric push rod 61 can be directly started, the telescopic end of the electric push rod 61 extends to the left, thereby driving the first connecting frame 62 to move to the left, and then making the sliding frame 41 start to automatically slide to the left. In the process of sliding the sliding frame 41 to the left, the second sliding part 64 will first move downward, thereby making the second spring 65 be stressed and compressed, and extruding the cutting block 42, so that the cutting block 42 automatically moves downward and punches and positions the packaging carton. Then the second sliding part 64 will continue to slide to the left under the guidance of the lower layer of the second connecting frame 63. When the second sliding part 64 contacts the baffle 66, the baffle 66 will be pushed, thereby making the baffle 66 rotate clockwise. At this time, the second sliding part 64 is no longer extruded by the lower layer of the second connecting frame 63, and starts to slide upward under the action of the second spring 65, thereby driving the cutting block 42 to slide upward and reset. At the same time, the baffle 66 will rotate counterclockwise and reset under the action of its own gravity. Then the telescopic end of the electric push rod 61 is retracted to the right, and since the baffle 66 will block the second sliding part 64 at this time, the second sliding part 64 will slide to the right under the guidance of the upper layer of the second connecting frame 63. At this time, the second spring 65 will be stressed and stretched. When the second sliding part 64 moves to the right of the second connecting frame 63, the second sliding part 64 will move downward to complete the reset under the action of the second spring 65. In summary, by driving the first connecting frame 62 to move through the telescopic end of the electric push rod 61, the second sliding part 64 is guided by the second connecting frame 63 to slide to the left first, extruding the cutting block 42, realizing the effect of automatically punching and positioning the printed packaging carton, and then sliding to the right to reset, so that the cutting block 42 is separated from the packaging carton, reducing the frequency of manual operation of the operator and improving the punching and positioning efficiency.

[0038] As shown in Figure 1 and Figure 7 It also includes a blowing mechanism 7, which includes a fixed plate 71, a fan 72, a nut 73 and a screw rod 74. The left side of each of the two fixed frames 3 close to each other is connected with a fixed plate 71, and the screw rod 74 is rotatably connected to the two fixed plates 71. The two screw rods 74 are connected with the fan 72 between the sides close to each other. The fan 72 is used to improve the drying effect of the printed packaging carton. The side of each of the two screw rods 74 away from each other is threadedly connected with a nut 73. Rotating the nut 73 can make the screw rod 74 no longer be restricted, so as to be freely rotated.

[0039] After the printing of the packaging carton is completed, it will first pass through the heating pipe 53 for heating and drying, at this time the screw cap 73 can be rotated so that the screw rod 74 is no longer restricted, then the screw rod 74 is rotated to adjust the angle of the fan 72, then the screw cap 73 is reversely rotated so that the screw rod 74 is restricted and cannot continue to rotate, then the fan 72 is started, and the rotation of the fan 72 can re-dry the dried packaging carton, so that the drying effect is enhanced, and after the drying is completed, the fan 72 is closed. In summary, by starting the fan 72, the airflow starts to flow, thereby re-drying the heated and dried packaging carton, thereby improving the drying effect.

[0040] As shown in Figure 1 and Figure 8 , it also includes a protection mechanism 8, which includes a protection plate 81, a limiting piece 82 and a stop block 83. The protection plate 81 is slidably connected to the lifting frame 52 and can block the heating pipe 53, thereby avoiding burns to the personnel operating the packaging carton due to the high temperature of the heating block. The protection plate 81 is provided with a pull slot for easy adjustment and operation of the protection plate 81. The limiting piece 82 is connected to the front upper side of the lifting frame 52, and the stop block 83 is slidably connected to the limiting piece 82. The stop block 83 is connected to the protection plate 81.

[0041] When the heating pipe 53 heats and dries the printed packaging carton, in order to avoid the operator being accidentally burned by the temperature of the heating pipe 53, the stop block 83 can be pulled forward in advance so that the stop block 83 is no longer connected to the protection plate 81. At this time, the protection plate 81 will slide downward under the action of its own gravity and shield the left and right sides of the heating pipe 53, thereby avoiding burns to the operator caused by high temperature. After the printing work is completed, the protection plate 81 is pulled upward to reset, and the stop block 83 is pushed backward to reset, so that the stop block 83 is connected to the protection plate 81. In summary, the protection plate 81 shields the left and right sides of the heating pipe 53, thereby avoiding burns to the operator caused by the high temperature of the heating pipe 53 and work accidents, thereby enhancing the operation safety.

[0042] As shown in Figure 1 and Figure 9 , it also includes an auxiliary mechanism 9, which includes a support frame 91 and a pulley 92. The printing machine 1 is connected to the support frame 91 on the left and right sides by bolts. Eight pulleys 92 are rotatably connected to each support frame 91. Each four pulleys 92 form a group, and each group of pulleys 92 is distributed in front of and behind the support frame 91. The pulleys 92 cooperate with each other to support and guide the packaging carton.

[0043] When printing the packaging carton, the packaging carton is placed between the eight pulleys 92 on the right, and then the packaging carton is driven to the left by the power of the printing machine 1, at this time the pulleys 92 on the right will guide the movement of the packaging carton, and then the packaging carton after printing will move to the left and discharge, and then under the action of the eight pulleys 92 on the left, the packaging carton after printing can move to the left stably.

[0044] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A flexible printing device for packaging paper boxes that prevents discoloration and dries quickly, comprising a printing machine (1), a cover plate (2), and fixing frames (3), wherein the top of the printing machine (1) is connected to the cover plate (2), and two fixing frames (3) are bolted to the left side of the printing machine (1), characterized in that: Also include cutting mechanism (4) and drying mechanism (5), the fixed frame (3) is equipped with cutting mechanism (4) for printing after the packaging paper is positioned and cut, the fixed frame (3) is equipped with drying mechanism (5) for printing after the packaging paper is dried; The cutting mechanism (4) includes a sliding frame (41), a cutting block (42), a first spring (43), a support block (44), a rack (45) and a gear (46), the sliding frame (41) is slidably connected between the mutually adjacent sides of the fixed frame (3), the cutting block (42) is slidably connected to the upper portion of the sliding frame (41), two first springs (43) are connected between the cutting block (42) and the sliding frame (41), the support block (44) is slidably connected to the lower portion of the sliding frame (41), two first springs (43) are also connected between the support block (44) and the sliding frame (41), the rack (45) is connected to the front and rear sides of the cutting block (42), the rack (45) is also connected to the front and rear sides of the support block (44), the gear (46) is rotatably connected to the inside of the sliding frame (41) on the front and rear sides; The drying mechanism (5) includes a fixed frame (51), a lifting frame (52), a heating pipe (53), a first sliding member (54), a connecting rod (55) and a bidirectional screw rod (56), the fixed frame (51) is connected between the mutually distant sides of the two fixed frames (3), the lifting frame (52) is slidably connected to the fixed frame (51), the heating pipe (53) is connected to the bottom of the lifting frame (52), the bidirectional screw rod (56) is rotatably connected to the left side of the upper portion of the fixed frame (51), the first sliding member (54) is threadedly connected to the front and rear portions of the bidirectional screw rod (56), the connecting rod (55) is rotatably connected to the top of the first sliding member (54), and the connecting rod (55) is rotatably connected to the fixed frame (51); Also include a pushing mechanism (6) for automatically punching and positioning the packaging paper box, the pushing mechanism (6) includes an electric push rod (61), a first connecting frame (62), a second connecting frame (63), a second sliding member (64), a second spring (65) and a baffle (66), the electric push rod (61) is bolted to the left side of the printing machine (1), the first connecting frame (62) is connected to the extension end of the electric push rod (61), the first connecting frame (62) is connected to the lower left side of the sliding frame (41), the second connecting frame (63) is bolted to the mutually distant sides of the upper portions of the fixed frame (3), the second sliding member (64) is slidably connected to the second connecting frame (63), the second spring (65) is connected between the second sliding member (64) and the cutting block (42), and the baffle (66) is rotatably connected to the second connecting frame (63).

2. A decoloration-proof and rapid drying packaging carton flexible printing device according to claim 1, characterized in that: The packaging carton drying effect improving blowing mechanism (7) is further included, the blowing mechanism (7) includes fixed plate (71), fan (72), nut (73) and screw rod (74), the left side of the two fixed frames (3) close to each other is connected with fixed plate (71), the two fixed plates (71) are rotatably connected with screw rod (74), the two screw rods (74) are connected with fan (72) between the side close to each other, the side of two screw rods (74) away from each other is screwedly connected with nut (73).

3. A decoloration-proof and rapid drying packaging carton flexible printing device according to claim 2, characterized in that: The safety protection mechanism (8) for protecting the operator is further included, the safety protection mechanism (8) includes protection plate (81), limiting piece (82) and stopper (83), the lifting frame (52) is slidably connected with protection plate (81), the front upper side of the lifting frame (52) is connected with limiting piece (82), the limiting piece (82) is slidably connected with stopper (83), and the stopper (83) is clamped with the protection plate (81).

4. A decoloration-proof and rapid drying packaging carton flexible printing device according to claim 3, characterized in that: The auxiliary mechanism (9) for supporting and guiding the packaging carton is further included, the auxiliary mechanism (9) includes support frame (91) and pulley (92), and the left and right sides of the printing machine (1) are connected with support frame (91) through bolts, and eight pulleys (92) are rotatably connected on each support frame (91).

5. A decoloration-proof and rapid drying packaging carton flexible printing device according to claim 4, characterized in that: The cutting block (42) is provided with a handle on the top, so that the operator can push the cutting block (42) to cut.

6. A decoloration-proof and rapid drying packaging carton flexible printing device according to claim 5, characterized in that: The rib frame is connected between the second connecting frame (63) and the fixed frame (3), so that the connecting stability of the second connecting frame (63) is improved.

7. A decoloration-proof and rapid-drying packaging carton flexible printing device according to claim 6, characterized in that: The protection plate (81) is provided with a pulling groove, so that the protection plate (81) can be adjusted conveniently.

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