Carton packaging and printing conveyor

Abstract

The invention relates to a carton packaging and printing conveyor, and belongs to the technical field of carton conveying. The carton packaging, printing and conveying machine comprises a roller conveying machine body and a transverse plate installed in the roller conveying machine body. The number of the limiting mechanisms is two, and the limiting mechanisms are arranged above the transverse plate; wherein the limiting mechanism comprises a square pipe and a side plate, the square pipe is arranged between the transverse plate and the roller conveyor body, a group of adsorption holes arranged at equal intervals are formed in the top of the square pipe, the side plate is located on one side of the roller conveyor body, an exhaust groove is formed in the top of the side plate, and a spraying groove is formed in the side, close to the roller conveyor body, of the side plate; a correction mechanism; the effects of limiting, correction and external protection in the carton conveying process are achieved in an air adsorption and discharge mode, in the mode, external components do not need to make contact with the carton, the carton abrasion phenomenon can be effectively reduced, and the attractiveness and the service life of the carton can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of carton conveying, in particular to a carton packaging printing conveyor. Background Art

[0002] Cartons can be seen everywhere in our lives. When transporting items, boxes can not only load items, but also protect them well. Cartons are a cheap and high-quality disposable or reusable packaging product. The cardboard used to make cartons can be divided into corrugated cardboard, composite cardboard and single-layer cardboard according to differences in structure and material. As an alternative to hard material packaging represented by wooden boxes, it has outstanding advantages such as low material cost, easy production, and convenient storage / transportation. In addition, the use of cartons is also beneficial to environmental protection, reduces the felling of trees, and saves materials.

[0003] After searching, the Chinese patent "A carton packaging and printing conveyor" with the announcement number "CN116620822B" includes a conveyor belt assembly and two side frames, and also includes a bearing rotation assembly and a side pressure correction assembly. When the carton moves on the conveyor belt assembly, the front end of the carton can push the bearing rotation assembly to rotate around the connection with the side frame, so that the carton can automatically correct its position during the movement, and the pressure-bearing part of the carton will not be deformed. However, the equipment has the following defects during use: although the carton is corrected by contacting its edges and corners, which makes it difficult for the carton to be deformed, hard contact is still made with the carton during the entire correction process, which can easily cause wear on the outside of the carton, affecting the subsequent aesthetics and service life. In addition, during the transportation process, if the carton passes through the correction area set by the above-mentioned equipment, it is still easy to deviate after being affected by external gas, thereby affecting the transportation effect. If additional correction points are added, the equipment cost is increased. Summary of the invention

[0004] Based on this, it is necessary to provide a carton packaging printing conveyor to address the problems of carton wear during the correction process and displacement due to the influence of external gases.

[0005] A carton packaging printing conveyor comprises a roller conveyor body and a transverse plate installed inside the roller conveyor body; a limiting mechanism, wherein the number of the limiting mechanisms is two and the limiting mechanism is arranged above the transverse plate; wherein the limiting mechanism comprises a square tube and a side plate, wherein the square tube is arranged between the transverse plate and the roller conveyor body, a group of adsorption holes arranged at equal distances are provided on the top of the square tube, the side plate is located on one side of the roller conveyor body and an exhaust groove is provided on the top thereof, and a spray groove is provided on the side of the side plate close to the roller conveyor body; a correction mechanism, wherein the correction mechanism is arranged between the transverse plate and the roller conveyor body; wherein the correction mechanism comprises two movable support boxes, an auxiliary component is provided between the two support boxes, and a group of vertical pipes are provided on the top of the support boxes.

[0006] In one of the embodiments, a side of the side plate close to the roller conveyor body is provided with an inclined groove below the spray groove, and the top notch of the exhaust groove is smaller than the inner notch thereof.

[0007] In one embodiment, the auxiliary component includes a block, two cavities and two groups of inclined holes, the cavity is opened to the interior of the block, the inclined hole is arranged at the top of the block and connected with the cavity, the tops of the two groups of inclined holes are inclined toward the center line of the top of the block, air guide grooves are opened on both sides of the block, and a duct for communication is installed between the air guide grooves and the cavity.

[0008] In one of the embodiments, a mounting frame is provided on the top of the roller conveyor body, and a reflective photoelectric sensor located above the support box is installed on the mounting frame.

[0009] In one embodiment, a servo motor is provided on the roller conveyor body, and a screw is fixedly installed on the output shaft of the servo motor through a coupling. A driving block connected to the outer thread of the screw is installed at the bottom of the square tube, and the internal threads of the two driving blocks are arranged oppositely.

[0010] In one embodiment, two first air pumps are installed on the top of the horizontal plate, and folded tubes are installed at the output end and the input end of the first air pump, and the top ends of the four folded tubes are respectively connected to the interiors of the two support boxes.

[0011] In one embodiment, a hydraulic rod is installed on the top of the transverse plate, an adjustment plate is hinged on the top of the hydraulic rod, a connecting rod hinged to the adjustment plate is hinged on the bottom of the support box, and the support box is hinged to the top of the transverse plate.

[0012] In one of the embodiments, a diversion groove is opened inside the side plate, and the spray groove, the inclined groove, and the exhaust groove are all connected to the diversion groove. A gate valve is arranged on the side plate, and the gate valve extends to the inside of the diversion groove.

[0013] In one embodiment, two second air pumps are installed on the top of the horizontal plate, and air pipes are installed at the output and input ends of the second air pumps. The air pipe on the output end of the second air pump extends to the inside of the diversion trough, and the air pipe on the input end of the second air pump extends to the inside of the square tube. The air pipe is made of a plastic hose.

[0014] In one of the embodiments, air supply pipes are installed at both ends of the square tube, and electric regulating valves are installed on the outer sides of the vertical pipe, the conduit and the air supply pipe.

[0015] When the carton is accidentally deviated during the conveying process, the two support boxes are driven to form a "V" shape. At this time, the support box in the direction of the carton deviation discharges its internal gas along the corresponding vertical pipe, and blows and drives the outer side of the bottom of the carton. At the same time, the vertical pipe on the support box on the other side performs suction traction, and the two sets of inclined holes on the block also complete the effects of blowing drive and suction traction. The two are combined to complete the carton reset operation. In the reset process, the inclined groove is used to guide the downward airflow to form a lateral thrust and a longitudinal thrust on the outside of the carton. The generated lateral thrust assists the carton reset, and the generated longitudinal thrust can ensure the contact effect between the carton and the roller conveyor body, reduce the shaking and floating of the carton during the exhaust process of the vertical pipe on the support box, and ensure stability. During the entire reset process, no external components are in contact with the carton, which can reduce the wear of the carton and ensure the subsequent aesthetics and service life.

[0016] The suction holes on the square tube are used to limit the bottom of the carton to reduce the deviation on the roller conveyor body. The gas sucked into the square tube will be discharged along the exhaust grooves on the side panels, so that the discharged gas forms an air curtain and is on both sides of the roller conveyor body. The air curtain is used to intercept the cross wind on both sides of the roller conveyor body, effectively protect the conveying environment, reduce the phenomenon of external gas blowing to the outside of the carton, and thus reduce the deviation of the carton due to the influence of external gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the horizontal plate and square tube structure of the present invention;

[0020] Figure 3It is a schematic cross-sectional view of the side plate and the diverter trough structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the servo motor and square tube structure of the present invention;

[0022] Figure 5 It is a schematic cross-sectional view of the stopper and the air guide slot structure of the present invention;

[0023] Figure 6 It is a cross-sectional schematic diagram of the support box and the riser structure of the present invention;

[0024] Figure 7 It is a cross-sectional schematic diagram of the side plate and square tube structure of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the hydraulic rod and the adjustment plate of the present invention.

[0026] Reference numerals:

[0027] 100, roller conveyor body; 110, servo motor; 120, screw rod; 200, cross plate; 210, first air pump; 220, folding tube; 230, hydraulic rod; 231, adjustment plate; 232, connecting rod; 240, second air pump; 241, air pipe; 300, limit mechanism; 310, square tube; 311, adsorption hole; 312, air supply pipe; 320, side plate; 321, exhaust groove; 322, spray groove; 323, inclined groove; 324, diverter groove; 325, plug valve; 400, correction mechanism; 410, support box; 411, vertical pipe; 500, auxiliary component; 510, block; 511, air guide groove; 520, cavity; 530, inclined hole; 540, duct; 600, reflective photoelectric sensor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0033] Combine the following Figure 1-Figure 8 The carton packaging printing conveyor of the present invention is described.

[0034] like Figure 1-8As shown, in one embodiment, a carton packaging printing conveyor includes a roller conveyor body 100 and a horizontal plate 200 installed inside the roller conveyor body; a limiting mechanism 300, the number of which is two, and the limiting mechanism 300 is arranged above the horizontal plate 200; wherein the limiting mechanism 300 includes a square tube 310 and a side plate 320, the square tube 310 is arranged between the horizontal plate 200 and the roller conveyor body 100, and a group of adsorption holes 310 arranged at equal distances are opened on the top of the square tube 310 1, the side plate 320 is located at one side of the roller conveyor body 100 and has an exhaust slot 321 on its top, and a spray slot 322 is opened on the side of the side plate 320 close to the roller conveyor body 100; the correction mechanism 400 is arranged between the transverse plate 200 and the roller conveyor body 100; wherein the correction mechanism 400 includes two movable support boxes 410, an auxiliary component 500 is arranged between the two support boxes 410, and a group of vertical pipes 411 are arranged on the top of the support box 410

[0035] like Figure 1 , Figure 2 and Figure 7 As shown, a side of the side plate 320 close to the roller conveyor body 100 is provided with an inclined groove 323 below the spray groove 322, and the top notch of the exhaust groove 321 is smaller than the inner notch thereof.

[0036] The neatly arranged cartons are conveyed in sequence along the top of the roller conveyor body 100. During the conveying process, the suction holes 311 on the square tube 310 are used to limit the bottom of the cartons to reduce the deviation on the roller conveyor body 100. The gas sucked into the square tube 310 is discharged along the exhaust grooves 321 on the side plate 320, so that the discharged gas forms an air curtain and is located on both sides of the roller conveyor body 100, so that the air curtain is used to intercept the cross wind on both sides of the roller conveyor body 100, that is, the conveying environment is protected, and the deviation of the cartons caused by the external gas is reduced;

[0037] If the carton is accidentally deviated during the conveying process, the two support boxes 410 can be driven to form a "V" shape when the carton moves onto the support box 410. At this time, the support box 410 in the direction of the carton deviation discharges its internal gas along the corresponding vertical pipe 411, and the outer edge of the bottom of the carton is driven by blowing. At the same time, the vertical pipe 411 on the other side of the support box 410 performs suction traction. The two are combined to complete the carton resetting operation, and the auxiliary component 500 is added to ensure the driving effect of the carton.

[0038] In the resetting process, two spray slots 322 are used to blow gas to drive both sides of the carton. Since the carton is in an offset state at this time, the offset direction of the carton is close to the spray slot 322 on one side. Under the influence of the gas blown out of the spray slot 322, the carton will move toward the center of the roller conveyor body 100. At this time, the gas sprayed from the spray slot 322 on the other side can be used to carry out gas to the side of the carton during the resetting process, thereby reducing the occurrence of excessive displacement of the carton and helping the carton to be stably reset to the center line of the roller conveyor body 100.

[0039] Due to the arrangement of the inclined slot 323, an oblique downward airflow can be guided out on both sides of the carton. After the airflow contacts the outer side of the carton, a lateral thrust and a longitudinal thrust can be formed. The generated lateral thrust has the same effect as the gas guided out by the spray slot 322, and can assist the carton in resetting. The generated longitudinal thrust can ensure the contact effect between the carton and the roller conveyor body 100, reduce the shaking and floating of the carton during the exhaust process of the vertical pipe 411 on the support box 410, and ensure stability.

[0040] It should be noted that during the entire process of conveying, resetting and correcting the carton, no other external components come into contact with the carton, which can effectively reduce the wear and tear on the carton. The protective air curtain generated in the exhaust groove 321 can protect the conveying environment, and the air curtain protection range can be adjusted according to the conveying range of the roller conveyor body 100.

[0041] like Figure 2 and Figure 5 As shown, the auxiliary component 500 includes a block 510, two cavities 520 and two groups of inclined holes 530. The cavity 520 is opened to the interior of the block 510. The inclined holes 530 are arranged at the top of the block 510 and are connected with the cavity 520. The tops of the two groups of inclined holes 530 are inclined toward the center line of the top of the block 510. Air guide grooves 511 are opened on both sides of the block 510. A duct 540 for communication is installed between the air guide groove 511 and the cavity 520.

[0042] When the two support boxes 410 are in a "V" shape, the vertical pipe 411 on one support box 410 exhausts air to help the carton to reset, and the vertical pipe 411 on the other support box 410 sucks air to pull the carton to help reset. At this time, the block 510 is used to group the airflows generated by the two groups of vertical pipes 411 to reduce accidental turbulence between gases and ensure that the air outlet and air suction effects of the vertical pipes 411 are stable. At this time, the gas discharged from the vertical pipe 411 near the bottom of the carton will be blown into the air guide groove 511, and then enter the interior of the cavity 520 along the duct 540, and then blown out to the bottom of the carton in an oblique upward manner through the inclined hole 530 to assist in resetting. Similarly, during the suction process of some vertical pipes 411 on the other support box 410, the inclined holes 530 in this area suck and assist in pulling the bottom of the carton.

[0043] like Figure 1 As shown, a mounting frame is provided on the top of the roller conveyor body 100 , and a reflective photoelectric sensor 600 is mounted on the mounting frame and is located above the support box 410 .

[0044] A reflective photoelectric sensor 600 is used to detect the deviation of the carton. If deviation occurs, the position of the carton is adjusted in time.

[0045] like Figure 2 and Figure 4 As shown, a servo motor 110 is provided on the roller conveyor body 100, and a screw rod 120 is fixedly installed on the output shaft of the servo motor 110 through a coupling. A driving block connected to the outer thread of the screw rod 120 is installed at the bottom of the square tube 310, and the internal threads of the two driving blocks are arranged oppositely.

[0046] The user can start the servo motor 110 according to the size of the carton, so that it drives the screw rod 120 to rotate accordingly, thereby using the corresponding driving block to drive the square tube 310 to move back and forth and relative to each other, thereby changing the position of the adsorption limit according to the size of the carton.

[0047] like Figure 6 As shown, two first air pumps 210 are installed on the top of the horizontal plate 200 , and folded tubes 220 are installed at the output end and the input end of the first air pump 210 , and the top ends of the four folded tubes 220 are respectively connected to the interiors of the two support boxes 410 .

[0048] By setting up two first air pumps 210 and four corresponding folding tubes 220, the vertical pipes 411 on the two support boxes 410 can complete the suction and blowing operations, so that during the transportation process, the corresponding first air pump 210 can be selected for operation according to the offset of the carton to quickly complete the resetting operation.

[0049] like Figure 6 and Figure 7 As shown, a hydraulic rod 230 is installed on the top of the cross plate 200, and an adjustment plate 231 is hinged on the top of the hydraulic rod 230. A connecting rod 232 hinged to the adjustment plate 231 is hinged on the bottom of the support box 410, and the support box 410 is hinged to the top of the cross plate 200.

[0050] By retracting the hydraulic rod 230, the adjustment plate 231 can pull the corresponding connecting rod 232 to move, so that the two support boxes 410 are in a "V" shape, completing the subsequent pneumatically assisted carton resetting operation.

[0051] like Figure 2 , Figure 3 and Figure 7As shown, a diversion groove 324 is opened inside the side plate 320, and the spray groove 322, the inclined groove 323, and the exhaust groove 321 are all connected to the diversion groove 324. A gate valve 325 is provided on the side plate 320, and the gate valve 325 extends to the inside of the diversion groove 324.

[0052] When the carton is not deflected, the gate valve 325 can be activated to block the spray slot 322, the inclined slot 323 and the diverter slot 324, and all the gas is discharged from the exhaust slot 321, thereby increasing the air curtain maintenance strength, improving the crosswind interception effect, and reducing the phenomenon that the carton is affected by external gas.

[0053] like Figure 2 , Figure 3 and Figure 7 As shown, two second air pumps 240 are installed on the top of the horizontal plate 200, and air pipes 241 are installed at the output end and the input end of the second air pump 240. The air pipe 241 on the output end of the second air pump 240 extends to the inside of the diversion groove 324, and the air pipe 241 on the input end of the second air pump 240 extends to the inside of the square tube 310. The material of the air pipe 241 is a plastic hose, which is convenient for the normal adjustment operation of the square tube 310.

[0054] By adopting the setting of the second air pump 240, the gas extracted from the square tube 310 can be introduced into the inside of the diverter groove 324 on the side plate 320 along the gas delivery pipe 241, and the gas can be transported and utilized, which is more energy-saving.

[0055] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, both ends of the square tube 310 are installed with air supply pipes 312 , and the outer sides of the vertical pipe 411 , the conduit 540 and the air supply pipe 312 are installed with electric regulating valves.

[0056] When too many cartons are conveyed on the roller conveyor body 100, the air supply pipe 312 can be used to introduce external air into the square tube 310, so as to ensure that there is sufficient gas in the air supply pipe 241, thereby ensuring the stability of the protective air curtain guided out from the exhaust groove 321. The electric regulating valve is used to control the gas flow in the vertical pipe 411, the duct 540 and the air supply pipe 312. The corresponding flow range can be selected according to the material and size of the conveyed cartons to meet different usage requirements.

[0057] Working principle: During the conveying process, the suction holes 311 on the square tube 310 are used to limit the bottom of the carton. While not affecting the conveying of the roller conveyor body 100, the deviation of the carton is reduced. The gas sucked into the square tube 310 will be discharged along the exhaust groove 321 to form an air curtain on both sides of the roller conveyor body 100, so as to use the air curtain to intercept the cross wind on both sides of the roller conveyor body 100, and reduce the deviation of the carton caused by the external gas. If the carton is accidentally deviated during the conveying process, the two support boxes 410 are driven to form a "V" shape. At this time, the support box 410 on the offset direction of the carton discharges its internal gas along the corresponding vertical pipe 411, and blows the outer edge of the bottom of the carton. At the same time, the vertical pipe 411 on the other side of the support box 410 performs suction traction. The two work together to complete the carton reset operation. At the same time, the gas discharged from the vertical pipe 411 near the center of the bottom of the carton will be blown into the air guide groove 511, and then enter the interior of the cavity 520 along the duct 540, and then blown out to the bottom of the carton in an oblique upward manner through the inclined hole 530 to assist in reset. Similarly, some vertical pipes 411 on the other support box 410 are sucked through During the process, the inclined holes 530 in this area are used to assist the bottom of the carton with suction, and the two nozzles 322 are used to blow gas to drive the two sides of the carton. The offset direction of the carton is close to the nozzle 322 on one side. Under the influence of the gas blown out of the nozzle 322, the carton will move toward the center of the roller conveyor body 100. At this time, the gas sprayed from the nozzle 322 on the other side can be used to carry out gas acceptance on the side of the carton during the resetting process, thereby reducing the excessive displacement of the carton and helping the carton to stably reposition to the center line of the roller conveyor body 100. In addition, due to the setting of the inclined slot 323, the carton can be repositioned on both sides of the carton. The airflow is directed obliquely downward from the side and, after contacting the outside of the carton, can form lateral thrust and longitudinal thrust. The generated lateral thrust has the same effect as the gas directed out of the spray slot 322 and can assist in resetting the carton, while the generated longitudinal thrust can ensure the stable contact effect between the carton and the roller conveyor body 100. During the entire process of conveying, resetting and correcting the carton, no other external components are in contact with the carton, which can effectively reduce the wear and tear of the carton. The protective air curtain generated in the exhaust slot 321 can protect the conveying environment, and its air curtain protection range can be adjusted according to the conveying range of the roller conveyor body 100.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A carton packaging printing conveyor, characterized in that: include: A roller conveyor body (100) and a transverse plate (200) installed inside the roller conveyor body; A limiting mechanism (300), wherein the number of the limiting mechanisms (300) is two, and the limiting mechanisms (300) are arranged above the horizontal plate (200); The limiting mechanism (300) comprises a square tube (310) and a side plate (320); the square tube (310) is arranged between the transverse plate (200) and the roller conveyor body (100); a group of adsorption holes (311) arranged at equal distances are provided on the top of the square tube (310); the side plate (320) is located on one side of the roller conveyor body (100) and has an exhaust groove (321) on the top; and a spray groove (322) is provided on the side of the side plate (320) close to the roller conveyor body (100); A correction mechanism (400), wherein the correction mechanism (400) is arranged between the transverse plate (200) and the roller conveyor body (100); The correction mechanism (400) comprises two movable support boxes (410), an auxiliary component (500) is arranged between the two support boxes (410), and a group of vertical pipes (411) are arranged on the top of the support box (410).

2. The carton packaging printing conveyor according to claim 1, characterized in that: A side of the side plate (320) close to the roller conveyor body (100) is provided with an inclined groove (323) below the spray groove (322), and the top notch of the exhaust groove (321) is smaller than the inner notch thereof.

3. The carton packaging printing conveyor according to claim 1, characterized in that: The auxiliary component (500) comprises a block (510), two cavities (520) and two groups of inclined holes (530); the cavity (520) is opened to the interior of the block (510); the inclined holes (530) are arranged at the top of the block (510) and are connected to the cavity (520); the tops of the two groups of inclined holes (530) are inclined toward the center line of the top of the block (510); air guide grooves (511) are opened on both sides of the block (510); and a duct (540) for communication is installed between the air guide groove (511) and the cavity (520).

4. The carton packaging printing conveyor according to claim 1, characterized in that: A mounting frame is provided on the top of the roller conveyor body (100), and a reflective photoelectric sensor (600) located above the support box (410) is mounted on the mounting frame.

5. The carton packaging printing conveyor according to claim 1, characterized in that: A servo motor (110) is arranged on the roller conveyor body (100), and a screw rod (120) is fixedly mounted on the output shaft of the servo motor (110) via a coupling. A driving block connected to the outer thread of the screw rod (120) is mounted at the bottom of the square tube (310), and the internal threads of the two driving blocks are arranged oppositely.

6. The carton packaging printing conveyor according to claim 1, characterized in that: Two first air pumps (210) are installed on the top of the horizontal plate (200), and folded tubes (220) are installed at the output end and the input end of the first air pump (210), and the top ends of the four folded tubes (220) are respectively connected to the inside of the two support boxes (410).

7. The carton packaging printing conveyor according to claim 1, characterized in that: A hydraulic rod (230) is installed on the top of the transverse plate (200), and an adjustment plate (231) is hinged on the top of the hydraulic rod (230). A connecting rod (232) hinged to the adjustment plate (231) is hinged on the bottom of the support box (410), and the support box (410) is hinged to the top of the transverse plate (200).

8. The carton packaging printing conveyor according to claim 2, characterized in that: A diversion groove (324) is provided inside the side plate (320), and the spray groove (322), the inclined groove (323), and the exhaust groove (321) are all connected to the diversion groove (324). A gate valve (325) is provided on the side plate (320), and the gate valve (325) extends to the inside of the diversion groove (324).

9. The carton packaging printing conveyor according to claim 8, characterized in that: Two second air pumps (240) are installed on the top of the horizontal plate (200), and air pipes (241) are installed at the output end and the input end of the second air pump (240). The air pipe (241) on the output end of the second air pump (240) extends to the inside of the diversion groove (324), and the air pipe (241) on the input end of the second air pump (240) extends to the inside of the square tube (310). The material of the air pipe (241) is a plastic hose.

10. The carton packaging printing conveyor according to claim 3, characterized in that: Both ends of the square tube (310) are installed with air supply pipes (312), and the outer sides of the vertical pipe (411), the conduit (540) and the air supply pipe (312) are installed with electric regulating valves.

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