CN217147794U

CN217147794U - Discharging device of corrugated carton printing machine

Info

Publication number: CN217147794U
Application number: CN202122776458.4U
Authority: CN
Inventors: 柳嘉发
Original assignee: Guangdong Gaofan Packing Material Co ltd
Current assignee: Guangdong Gaofan Packing Material Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-08-09
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a discharging device of a corrugated case printing machine, which comprises a first conveying mechanism, a second conveying mechanism and an aligning mechanism, wherein the first conveying mechanism is used for transferring the printed corrugated case and comprises a frame, a first conveying belt and a first power part; the second conveying mechanism is used for receiving the corrugated cartons from the first conveying belt and comprises a plurality of second conveying belts and second power parts which are arranged in parallel; the aligning mechanism comprises a supporting component, a rear baffle component and a side baffle component, the supporting component comprises a supporting piece and a first cylinder for driving the supporting piece to lift, the rear baffle component comprises a rear baffle plate and a second cylinder for driving the rear baffle plate to lift, and the side baffle component comprises a first side baffle plate, a second side baffle plate and a third cylinder for driving the first side baffle plate to be close to and far away from the second side baffle plate. The utility model discloses a corrugated box printing machine's discharging device can practice thrift the manpower to the automatic pile ejection of compact of corrugated box.

Description

Discharging device of corrugated carton printing machine

Technical Field

The utility model relates to a corrugated box production facility's technical field, in particular to corrugated box printing machine's discharging device.

Background

A corrugated carton is a carton made of corrugated cardboard.

Conventionally, corrugated cartons are required to be printed on the box body according to the requirements of customers in the production process.

Structurally, the corrugated box printing machine has a feeding device, a printing device and a discharging device.

However, the conventional discharging device only transfers and outputs the printed corrugated case, and after the corrugated case is output by the discharging device, the corrugated case needs to be manually arranged and stacked, which consumes manpower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a corrugated box printing machine's discharging device can practice thrift the manpower to the automatic pile ejection of compact of corrugated box.

According to the utility model discloses a corrugated box printing machine's discharging device of first aspect embodiment, include: the first conveying mechanism is used for transferring printed corrugated cartons and comprises a rack, a first conveying belt arranged on the rack and a first power part for driving the first conveying belt, and the first conveying belt is used for conveying the corrugated cartons; the second conveying mechanism is arranged on the rack, is positioned below the discharge end of the first conveying belt, is used for receiving the corrugated cartons from the first conveying belt, and comprises a plurality of second conveying belts arranged in parallel and a second power part for driving the second conveying belts, the conveying direction of the second conveying belts is consistent with that of the first conveying belts, and the plurality of second conveying belts are used for conveying the corrugated cartons; the aligning mechanism is arranged on the rack and comprises a supporting component, a rear baffle component and a side baffle component, wherein the supporting component comprises two supporting pieces and a first cylinder, the supporting pieces are arranged between the second conveying belts, the first cylinder drives the supporting pieces to lift, the supporting pieces are used for supporting corrugated case stacking, the rear baffle component comprises a rear baffle plate and a second cylinder, the rear baffle plate is arranged above the second conveying belts, the second cylinder drives the rear baffle plate to lift, the rear baffle plate is used for limiting the movement of the corrugated case, the side baffle component comprises a first side baffle plate, a second side baffle plate and a third cylinder, the first side baffle plate is close to and far away from the second side baffle plate, and the first side baffle plate and the second side baffle plate are matched with each other to clamp the corrugated case.

According to the utility model discloses corrugated box printing machine's discharging device has following beneficial effect at least: through setting up first conveying mechanism, first conveying mechanism includes the frame, sets up first conveyor belt in the frame and the first power spare of the first conveyor belt of drive, and first conveyor belt is used for transporting corrugated box to, first conveying mechanism can transport the transition from printing device with the corrugated box that prints, and then, realizes continuous production.

Meanwhile, a second conveying mechanism is arranged on the machine frame and is positioned below the discharge end of the first conveying belt, the second conveying mechanism is used for receiving the corrugated cartons from the first conveying belt, thus, when the second conveying mechanism receives the corrugated cases from the first conveying belt, the corrugated cases automatically form a stacking state after falling on the second conveying mechanism, furthermore, the corrugated case is quickly stacked, meanwhile, the second conveying mechanism comprises a plurality of second conveying belts arranged in parallel and a second power part for driving the second conveying belts, the conveying direction of the second conveying belts is consistent with that of the first conveying belt, the second conveying belts are used for conveying corrugated cartons, therefore, the second conveying belt can transfer the corrugated carton which is piled up to the next process, and further, continuous production is realized.

In addition, by arranging the aligning mechanism on the rack, the aligning mechanism comprises a supporting component, a rear baffle component and a side baffle component, the supporting component comprises a supporting piece and a first cylinder, the supporting piece is positioned between the two second conveying belts, the first cylinder drives the supporting piece to lift, the supporting piece is used for supporting the corrugated case to be stacked, on one hand, the corrugated case to be stacked is prevented from being driven by the second conveying belts to move away, on the other hand, the corrugated case to be stacked is damaged by friction of the second conveying belts, in addition, the rear baffle component comprises a rear baffle positioned above the second conveying belts and a second cylinder, the second cylinder drives the rear baffle to lift, the rear baffle is used for limiting the movement of the corrugated case, the rear baffle can align one side of the corrugated case along the conveying direction, and meanwhile, the side baffle component comprises a first side baffle, a second side baffle and a third cylinder, the third cylinder drives the first side baffle to be close to and far away from the second side baffle, first side shield and second side shield cooperation centre gripping align corrugated box to, the both sides of corrugated box are aligned in the cooperation of first side shield and second side shield, and then, the cooperation of first conveying mechanism, second conveying mechanism and alignment mechanism realizes practicing thrift the manpower to the automatic pile ejection of compact of corrugated box.

According to some embodiments of the invention, the support member is provided with a plurality of, two one is held between conveyor belt support member.

The beneficial results are: through setting up a plurality of support piece, support piece of holding between two conveyor belt to, make a plurality of support piece bigger to corrugated box's support range, and then, make a plurality of support piece more steady to corrugated box's support.

According to some embodiments of the utility model, the supporting component still include with sliding connection's lift seat, a plurality of about the frame support piece sets up on the lift seat, first cylinder is connected the lift seat.

The beneficial results are: through the lifting seat that sets up sliding connection about supporting component and frame, a plurality of support piece sets up on the lifting seat, and the lifting seat is connected to first cylinder to, first cylinder can drive a plurality of support piece synchronous lift simultaneously, makes a plurality of support piece's action unanimous, and then makes a plurality of support piece more steady to corrugated box's support.

According to some embodiments of the invention, the bottom of the back baffle is provided with a first groove, the first groove accommodating the support member.

The beneficial results are: through set up first recess in the bottom of backplate, first recess holding support piece to the people avoids support piece and backplate collision.

According to some embodiments of the utility model, the frame is provided with the first spout that extends from top to bottom, first spout holding the border of backplate.

The beneficial results are: through the first spout that extends about setting up at the framework, the border of first spout holding backplate to, first spout can provide the direction for backplate's lift, and then, makes backplate's lift more steady.

According to some embodiments of the utility model, first side shield is close to one side of first conveyor belt is provided with first guide, first guide is along keeping away from the direction slope setting of second side shield.

The beneficial results are: the first guide part is arranged on one side of the first side baffle close to the first conveying belt, and the first guide part is obliquely arranged along the direction away from the second side baffle, so that the first guide part can guide the corrugated carton to enter between the first side baffle and the second side baffle.

According to some embodiments of the utility model, the second side shield is close to one side of first conveyor belt is provided with the second guide portion, the second guide portion sets up along keeping away from the direction slope of first side shield.

The beneficial results are: the second guide part is arranged on one side of the second side baffle close to the first conveying belt, and the second guide part is obliquely arranged along the direction far away from the first side baffle, so that the second guide part can guide the corrugated carton to enter between the first side baffle and the second side baffle.

According to some embodiments of the utility model, the side keeps off the subassembly and still includes first slider, first slider with frame sliding connection, first slider with the second side shield is connected, first slider drives the second side shield is close to and keeps away from first side shield, the frame still is provided with first bolt, first bolt with first slider butt will first slider with the frame is fixed.

The beneficial results are: through setting up first slider at the side fender subassembly, first slider and frame sliding connection, first slider is connected with the second curb plate, first slider drives the second curb plate and is close to and keeps away from first curb plate, thereby, make the position of second curb plate can adjust, and then, adjust the positioning position of alignment mechanism to corrugated box, and simultaneously, the frame sets up first bolt, first bolt and first slider butt are fixed with first slider and frame, thereby, conveniently adjust second curb plate position after-fixing second curb plate.

According to the utility model discloses a some embodiments, the side of first slider is provided with spacing sand grip, the frame is provided with first spacing groove, first spacing groove is followed the slip direction of first slider extends the setting, spacing sand grip with it is spacing about the cooperation of first spacing groove.

The beneficial results are: the side face of the first sliding block is provided with the limiting convex strip, the machine frame is provided with the first limiting groove, the first limiting groove extends along the sliding direction of the first sliding block, and the limiting convex strip and the first limiting groove are matched to be vertically limited, so that the first sliding block is prevented from falling off.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a discharging device of a corrugated carton printing machine according to an embodiment of the present invention;

fig. 2 is a top view of fig. 1.

Reference numerals: 100-a first conveying mechanism, 110-a rack, 120-a first conveying belt, 130-a first power member, 140-a second conveying mechanism, 150-a second conveying belt, 160-a second power member, 170-an alignment mechanism, 180-a support component, 190-a backstop component, 200-a side backstop component, 210-a support component, 220-a first cylinder, 230-a backstop, 240-a second cylinder, 250-a first side backstop, 260-a second side backstop, 270-a third cylinder, 280-a lifting seat, 290-a first groove, 300-a first sliding groove, 310-a first guide part, 320-a second guide part, 330-a first sliding block, 340-a first bolt, 350-a limiting convex strip and 360-a first limiting groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following describes an ejection device of a corrugated carton printing machine according to an embodiment of the present invention with reference to the accompanying drawings.

Referring to fig. 1 and 2, the discharging device of a corrugated box printing machine according to an embodiment of the present invention includes a first conveying mechanism 100, a second conveying mechanism 140, and an alignment mechanism 170.

As for the first conveying mechanism 100, the first conveying mechanism 100 is used for transferring printed corrugated boxes, and the first conveying mechanism 100 includes a frame 110, a first conveying belt 120 disposed on the frame 110, and a first power member 130 driving the first conveying belt 120, and the first conveying belt 120 is used for conveying the corrugated boxes.

In the embodiment, by providing the first conveying mechanism 100, the first conveying mechanism 100 includes a frame 110, a first conveying belt 120 disposed on the frame 110, and a first power member 130 driving the first conveying belt 120, and the first conveying belt 120 is used for transporting corrugated cartons, so that the first conveying mechanism 100 can transfer printed corrugated cartons from the printing device, and further, continuous production is realized.

For the second conveying mechanism 140, the second conveying mechanism 140 is disposed on the frame 110, the second conveying mechanism 140 is located below the discharge end of the first conveying belt 120, the second conveying mechanism 140 is configured to receive the corrugated cartons from the first conveying belt 120, the second conveying mechanism 140 includes a plurality of second conveying belts 150 disposed in parallel and a second power member 160 configured to drive the second conveying belts 150, a conveying direction of the second conveying belts 150 is the same as a conveying direction of the first conveying belt 120, and the plurality of second conveying belts 150 are configured to convey the corrugated cartons.

In the embodiment, the second conveying mechanism 140 is disposed on the frame 110, the second conveying mechanism 140 is located below the discharge end of the first conveying belt 120, and the second conveying mechanism 140 is used for receiving the corrugated cases from the first conveying belt 120, so that when the second conveying mechanism 140 receives the corrugated cases from the first conveying belt 120, the corrugated cases automatically form a stacked state after falling onto the second conveying mechanism 140, and further, the corrugated cases are quickly stacked, meanwhile, the second conveying mechanism 140 includes a plurality of second conveying belts 150 disposed in parallel and a second power member 160 driving the second conveying belts 150, the conveying direction of the second conveying belts 150 is the same as the conveying direction of the first conveying belt 120, the plurality of second conveying belts 150 are used for conveying the corrugated cases, and thus, the second conveying belts 150 can transfer the stacked corrugated cases to the next process, further, continuous production is realized.

For the alignment mechanism 170, the alignment mechanism 170 is disposed on the frame 110, the alignment mechanism 170 includes a support assembly 180, a back stop assembly 190 and a side stop assembly 200, the support assembly 180 includes a support 210 located between the two second conveyor belts 150 and a first cylinder 220 for driving the support 210 to move up and down, the support 210 is used for supporting the stack of corrugated cartons, the back stop assembly 190 includes a back stop 230 located above the second conveyor belts 150 and a second cylinder 240 for driving the back stop 230 to move up and down, the back stop 230 is used for limiting the movement of the corrugated cartons, the side stop assembly 200 includes a first side stop 250, a second side stop 260 and a third cylinder 270 for driving the first side stop 250 to approach and move away from the second side stop 260, and the first side stop 250 and the second side stop 260 cooperate to clamp and align the corrugated cartons.

In the embodiment, the aligning mechanism 170 is arranged on the rack 110, the aligning mechanism 170 includes a support assembly 180, a back stop assembly 190 and a side stop assembly 200, the support assembly 180 includes a support member 210 located between the two second conveyor belts 150 and a first cylinder 220 for driving the support member 210 to move up and down, the support member 210 is used for supporting the stack of the corrugated cartons, so that, on one hand, the stacked corrugated cartons are prevented from being moved by the second conveyor belts 150, and on the other hand, the stacked corrugated cartons are damaged by friction of the second conveyor belts 150, in addition, the back stop assembly 190 includes a back stop 230 located above the second conveyor belts 150 and a second cylinder 240 for driving the back stop 230 to move up and down, the back stop 230 is used for limiting the movement of the corrugated cartons, so that the back stop 230 can align to one side of the corrugated cartons in the conveying direction, and meanwhile, the side stop assembly 200 includes a first side stop 250, The second side baffle 260 and the third cylinder 270 that drives the first side baffle 250 and be close to and keep away from the second side baffle 260, the first side baffle 250 and the second side baffle 260 cooperate the centre gripping to align the corrugated box to, the first side baffle 250 and the cooperation of second side baffle 260 align the both sides of corrugated box, and then, the cooperation of first conveying mechanism 100, second conveying mechanism 140 and alignment mechanism 170 realizes the automatic pile material ejection of compact to the corrugated box, practices thrift the manpower.

In some embodiments, the support member 210 may be provided in a plurality, and one support member 210 is received between two conveyor belts.

This embodiment is through setting up a plurality of support piece 210, support piece 210 of holding between two conveyor belts to, make the support scope of a plurality of support piece 210 to corrugated box bigger, and then, make the support of a plurality of support piece 210 to corrugated box more steady.

Further, the supporting member 180 may be provided with a lifting base 280 slidably connected to the frame 110 up and down, the plurality of supporting members 210 may be provided on the lifting base 280, and the first cylinder 220 may be connected to the lifting base 280.

The lifting seat 280 is arranged on the supporting component 180 and is connected with the rack 110 in a sliding manner, the supporting members 210 are arranged on the lifting seat 280, and the first cylinder 220 is connected with the lifting seat 280, so that the first cylinder 220 can drive the supporting members 210 to synchronously lift, the actions of the supporting members 210 are consistent, and the supporting of the supporting members 210 on the corrugated case is more stable.

In some embodiments, the bottom of the tailgate 230 may be provided with a first groove 290, the first groove 290 receiving the support 210.

In the embodiment, the first groove 290 is formed at the bottom of the rear baffle 230, and the first groove 290 accommodates the supporting member 210, so that a person can avoid the supporting member 210 from colliding with the rear baffle 230.

In some embodiments, the frame 110 may be provided with a first sliding slot 300 extending up and down, and the first sliding slot 300 receives an edge of the rear flap 230.

This embodiment sets up the first spout 300 that extends from top to bottom through frame 110, and the border of first spout 300 holding backplate 230 to, first spout 300 can provide the direction for backplate 230's lift, and then, makes backplate 230's lift more steady.

In some specific embodiments, the first side fence 250 may be provided with a first guide portion 310 at a side close to the first conveyor belt 120, and the first guide portion 310 is obliquely provided in a direction away from the second side fence 260.

The present embodiment is configured such that the first guide portion 310 is provided on the side of the first side barrier 250 close to the first conveyor belt 120, and the first guide portion 310 is provided obliquely in a direction away from the second side barrier 260, so that the first guide portion 310 can guide the corrugated box into between the first side barrier 250 and the second side barrier 260.

In some specific embodiments, the second side fence 260 may be provided with a second guide 320 at a side close to the first conveyor belt 120, and the second guide 320 is obliquely provided in a direction away from the first side fence 250.

The present embodiment is configured such that the second guide portion 320 is provided on the side of the second side fence 260 close to the first conveyor belt 120, and the second guide portion 320 is provided obliquely in a direction away from the first side fence 250, so that the second guide portion 320 can guide the corrugated box into between the first side fence 250 and the second side fence 260.

In some specific embodiments, the side blocking assembly 200 may be provided with a first sliding block 330, the first sliding block 330 is slidably connected to the frame 110, the first sliding block 330 is connected to the second side blocking plate 260, the first sliding block 330 drives the second side blocking plate 260 to approach and separate from the first side blocking plate 250, the frame 110 is further provided with a first bolt 340, and the first bolt 340 abuts against the first sliding block 330 to fix the first sliding block 330 and the frame 110.

This embodiment is through setting up first slider 330 at side fender subassembly 200, first slider 330 and frame 110 sliding connection, first slider 330 is connected with the second curb plate, first slider 330 drives the second curb plate and is close to and keep away from first side board 250, thereby, make the position of second side board 260 can be adjusted, and then, adjust the positioning position of alignment mechanism 170 to the corrugated carton, and simultaneously, frame 110 sets up first bolt 340, first bolt 340 is fixed with first slider 330 and frame 110 with first slider 330 butt, thereby, conveniently adjust second side board 260 position after-fixing second side board 260.

Further, a limit protruding strip 350 may be disposed on a side surface of the first slider 330, the rack 110 is provided with a first limit groove 360, the first limit groove 360 extends along a sliding direction of the first slider 330, and the limit protruding strip 350 and the first limit groove 360 are matched to limit up and down.

In this embodiment, the side surface of the first slider 330 is provided with the limiting convex strip 350, the rack 110 is provided with the first limiting groove 360, the first limiting groove 360 extends along the sliding direction of the first slider 330, and the limiting convex strip 350 and the first limiting groove 360 are matched to limit up and down, so that the first slider 330 is prevented from falling off.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A discharging device of a corrugated box printing machine is characterized by comprising:

the first conveying mechanism (100) is used for transferring printed corrugated cartons and comprises a rack (110), a first conveying belt (120) arranged on the rack (110) and a first power part (130) for driving the first conveying belt (120), wherein the first conveying belt (120) is used for conveying the corrugated cartons;

the second conveying mechanism (140) is arranged on the rack (110), is positioned below the discharge end of the first conveying belt (120), and is used for receiving the corrugated cartons from the first conveying belt (120), and comprises a plurality of second conveying belts (150) arranged in parallel and a second power part (160) for driving the second conveying belts (150), the conveying direction of the second conveying belts (150) is consistent with the conveying direction of the first conveying belt (120), and the plurality of second conveying belts (150) are used for conveying the corrugated cartons;

an alignment mechanism (170) disposed on the frame (110), and including a support assembly (180), a rear baffle assembly (190) and a side baffle assembly (200), wherein the support assembly (180) includes a support member (210) located between the two second conveyor belts (150) and a first cylinder (220) driving the support member (210) to move up and down, the support member (210) is used for supporting a stack of corrugated cartons, the rear baffle assembly (190) includes a rear baffle (230) located above the second conveyor belts (150) and a second cylinder (240) driving the rear baffle (230) to move up and down, the rear baffle (230) is used for limiting the movement of the corrugated cartons, the side baffle assembly (200) includes a first side baffle (250), a second side baffle (260) and a third cylinder (270) driving the first side baffle (250) to approach and move away from the second side baffle (260), the first side dam (250) and the second side dam (260) cooperate to clamp the aligned corrugated box.

2. The discharging device of a corrugated box printing machine according to claim 1, wherein said supporting member (210) is provided in a plurality, and one supporting member (210) is accommodated between two of said conveyor belts.

3. The discharging device of the corrugated box printing machine according to claim 2, wherein the supporting assembly (180) further comprises a lifting seat (280) connected with the frame (110) in a sliding manner up and down, a plurality of supporting members (210) are arranged on the lifting seat (280), and the first air cylinder (220) is connected with the lifting seat (280).

4. The discharging device of a corrugated box printing machine according to claim 1, wherein the bottom of the rear baffle (230) is provided with a first groove (290), and the first groove (290) is used for accommodating the supporting member (210).

5. The discharging device of a corrugated box printing machine according to claim 1, wherein the frame (110) is provided with a first chute (300) extending up and down, the first chute (300) accommodating an edge of the back baffle (230).

6. The discharging device of a corrugated box printing machine according to claim 1, wherein a side of the first side fence (250) close to the first conveyor belt (120) is provided with a first guide portion (310), and the first guide portion (310) is inclined in a direction away from the second side fence (260).

7. The discharging device of a corrugated box printing machine according to claim 1, wherein a side of the second side fence (260) close to the first conveyor belt (120) is provided with a second guide portion (320), and the second guide portion (320) is inclined in a direction away from the first side fence (250).

8. The discharging device of the corrugated box printing machine according to claim 1, wherein the side blocking assembly (200) further comprises a first sliding block (330), the first sliding block (330) is slidably connected with the frame (110), the first sliding block (330) is connected with the second side blocking plate (260), the first sliding block (330) drives the second side blocking plate (260) to approach and separate from the first side blocking plate (250), the frame (110) is further provided with a first bolt (340), and the first bolt (340) abuts against the first sliding block (330) to fix the first sliding block (330) and the frame (110).

9. The discharging device of a corrugated case printing machine according to claim 8, wherein a side surface of the first sliding block (330) is provided with a limiting convex strip (350), the frame (110) is provided with a first limiting groove (360), the first limiting groove (360) extends along the sliding direction of the first sliding block (330), and the limiting convex strip (350) and the first limiting groove (360) are matched for limiting up and down.