Positioning device for carton ink-jet printing

Abstract

The utility model provides a kind of positioning device for carton code spraying, belong to carton code spraying technical field, including electric conveyor belt and the positioning mechanism being set to its upper end, positioning mechanism includes the H-shaped plate being set to the upper end of electric conveyor belt, H-shaped plate is equipped with the code spraying spare for carrying out code spraying to carton, the sliding mouth that is symmetrically set in the lower side of both ends of H-shaped plate is slidably connected with L-shaped sliding plate, H-shaped plate is equipped with the driving part for driving L-shaped sliding plate to move, the slotted mouth in the inside end of L-shaped sliding plate is rotatably connected with rotating rod, the outer cam surface of rotating rod is equipped with positioning plate, L-shaped sliding plate is equipped with the rotating part for driving rotating rod rotating on it, the tail end of positioning plate is equipped with sliding slot mouth.The utility model is positioned accurately to carton by the positioning space formed by a positioning block and two positioning plates, realize the positioning demand of different sizes and different code spraying positions of paper box, reduce artificial calibration frequency and the scrap rate caused by positioning deviation.

Description

Technical Field

[0001] This utility model belongs to the field of carton inkjet printing technology, specifically relating to a positioning device for carton inkjet printing. Background Technology

[0002] With the intelligent upgrading of the global supply chain, carton inkjet printing has evolved from a simple marking function into a core technology for product quality traceability, anti-counterfeiting authentication, and supply chain digitalization. Consumers' increasing demand for product traceability, as well as the stringent batch management requirements of industries such as food, pharmaceuticals, and fast-moving consumer goods, are driving the development of inkjet printing technology towards high precision and high flexibility. Inkjet printing is a key link in product identification, information traceability, and quality control, and nowadays, specialized positioning devices for carton inkjet printing are commonly used. Traditional inkjet printing operations rely on manual positioning or fixed fixtures, which makes it difficult to quickly adapt to the inkjet printing needs of different sized cartons and different positions on the cartons. This results in high positioning deviation rates and low adjustment efficiency, which seriously restricts the flexibility of the production line. Utility Model Content

[0003] In view of this, the present invention provides a positioning device for carton inkjet printing, which can accurately position the carton through the positioning space formed by a positioning block and two positioning plates, realize the positioning requirements of different sizes of cartons and different inkjet printing positions, reduce the frequency of manual calibration and the scrap rate caused by positioning deviation.

[0004] To solve the above-mentioned technical problems, this utility model provides a positioning device for carton inkjet printing, including an electric conveyor belt and a positioning mechanism disposed on its upper end. The positioning mechanism includes a U-shaped plate disposed on the upper end of the electric conveyor belt, on which inkjet printing components for printing on the carton are provided. Sliding L-shaped sliding plates are symmetrically connected to sliding openings at both lower ends of the U-shaped plate. A driving component for moving the L-shaped sliding plates is provided on the U-shaped plate. A first rotating rod is rotatably connected to a slot at the inner end of each L-shaped sliding plate. A positioning plate is provided on the outer arc surface of each first rotating rod. A rotating component for driving the first rotating rod to rotate is provided in each L-shaped sliding plate. A sliding groove is provided at the end of each positioning plate, and a positioning block is slidably connected in each sliding groove. The positioning blocks are locked and positioned by locking components. That is, the positioning space formed by the positioning blocks and the two positioning plates allows for precise positioning of the carton, achieving the positioning requirements for different sizes and different inkjet printing positions of the carton, reducing the frequency of manual calibration and the scrap rate caused by positioning deviation.

[0005] The locking component includes rectangular through-holes located on the outer side of the positioning plate near each slide opening. Each positioning block has a threaded post on its outer side. The threaded post passes through the adjacent rectangular through-holes on the same side and is threaded with a threaded sleeve at its end. The threaded sleeve abuts against the outer side of the adjacent positioning plate on the same side, thereby locking and fixing the positioning block.

[0006] The driving component includes fixed blocks respectively disposed on the lower surface of the inner end of the L-shaped sliding plate. The outer surface of each fixed block is rotatably connected with a threaded rod, which is threadedly connected to the corresponding threaded hole on the L-shaped plate, so that the operator can quickly adjust the relative position of the L-shaped sliding plate.

[0007] The rotating component includes rectangular openings respectively disposed on the upper end of the L-shaped sliding plate. Each of the outer arc surfaces of the first rotating rod is provided with a pulley. Each of the vertical plates of the L-shaped sliding plate is rotatably connected to a second rotating rod. The upper end of each second rotating rod extends into the adjacent rectangular opening on the same side and is provided with a pulley. The pulleys on the same L-shaped sliding plate and the first rotating rod are connected by belt drive. The lower end of the electric conveyor belt is also provided with a drive assembly for synchronously driving the second rotating rod to rotate in the opposite direction, that is, providing a drive source for the second rotating rod.

[0008] The drive assembly includes mounting plates symmetrically arranged on both sides of the lower end of the electric conveyor belt. Rotating rods are rotatably connected to each mounting plate, and transmission rods are slidably connected to the outer ends of the rotating rods. The lower ends of the L-shaped sliding plates are provided with mounting cavities. The outer ends of the transmission rods are rotatably connected to rotating holes provided in adjacent mounting cavities on the same side. The end of the transmission rod located in the inner cavity of the mounting cavity is provided with a first bevel gear. The lower ends of the second rotating rods extend into adjacent mounting cavities on the same side and are provided with a second bevel gear at the end. The second pulleys are respectively meshed with the first bevel gear located in the same mounting cavity, thus achieving the function of rapid drive.

[0009] The outer end of the transmission rod is cylindrical, while the other end is rectangular. The rectangular section of the transmission rod is slidably connected to the rectangular groove at the outer end of the adjacent rotating rod on the same side, thus achieving rapid transmission.

[0010] The drive assembly also includes a dual-head motor located at the lower end of the electric conveyor belt. The output shafts at both ends of the dual-head motor are fixedly connected to the inner ends of the adjacent rotating rods on the same side, thus providing a drive source for the rotating rods.

[0011] The coding component includes an electric telescopic rod located in the middle of the upper part of the U-shaped plate. The lower end of the telescopic rod is equipped with a coding machine, which enables coding operations on the carton.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: 1. The operator first determines the size and coding position of the carton to be printed by rotating the threaded rod, driving the L-shaped sliding plate to move along the sliding opening of the U-shaped plate. The threaded end of the sliding plate engages with the threaded hole of the U-shaped plate. Rotating in both directions allows the two L-shaped sliding plates to move towards or away from each other, dynamically adjusting the distance between the two positioning plates and the center position formed by the positioning plates. Simultaneously, the operator moves the positioning block relative to the sliding groove and tightens the threaded sleeve to ensure it is firmly against the positioning plate, thus locking the positioning block. This ensures precise positioning of the carton within the positioning space formed by the two positioning blocks and the two positioning plates, meeting the positioning requirements for different carton sizes and coding positions. Subsequently, when the carton is conveyed to the area below the inkjet printing area by the electric conveyor belt, the positioning space formed by the two positioning blocks and the two positioning plates accurately positions the carton. The electric conveyor belt stops operating, and the electric telescopic rod drives the inkjet printer to move down to the preset height, simultaneously starting the inkjet printing operation. After inkjet printing, the drive unit drives the first rotating rod and the positioning plate to swing outward to release the space. Then, the electric conveyor belt starts to move the inkjet-printed carton out. Afterward, all mechanisms reset and the inkjet printing operation is performed again, ensuring that the inkjet printer always focuses on the target area at a constant distance and angle. This significantly improves the consistency of the inkjet printing position of multiple batches of cartons, reduces the frequency of manual calibration, and reduces the scrap rate caused by positioning deviation.

[0013] 2. The second rotating rods and pulleys at both ends rotate synchronously in opposite directions. This linkage transmission is transmitted to the first rotating rod and the positioning plate via the belt, causing them to swing outward to release space and play a role in rapid driving.

[0014] 3. The rectangular section of the transmission rod is slidably connected to the rectangular groove at the outer end of the adjacent rotating rod on the same side. This design ensures that the transmission is not interrupted when the two slide relative to each other. The dual-head motor drives the rotating rods on both sides to rotate synchronously. The rectangular groove at the outer end of the rod is linked with the rectangular section of the transmission rod, causing the transmission rod to swing around the mounting cavity hole. Then, through the meshing transmission of bevel gear one and bevel gear two, the second rotating rods at both ends and pulley two rotate synchronously in opposite directions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a positioning device for inkjet printing on cartons according to the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of point A in this utility model; Figure 4 This is an enlarged structural diagram of point B in this utility model; Figure 5 This is an enlarged structural diagram of point C of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 100, electric conveyor belt; 200, U-shaped plate; 201, L-shaped sliding plate; 202, first rotating rod; 203, positioning plate; 204, groove opening; 205, positioning block; 206, rectangular through-hole; 207, threaded column; 208, threaded sleeve; 300, fixing block; 301, threaded rod; 400, rectangular opening; 401, pulley one; 402, second rotating rod; 403, pulley two; 500, assembly plate; 501, rotating rod; 502, transmission rod; 503, mounting cavity; 504, bevel gear one; 505, bevel gear two; 506, double-headed motor; 600, electric telescopic rod; 601, inkjet printer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0018] This embodiment provides a positioning device for inkjet printing on cartons, such as... Figure 1-5 The system includes an electric conveyor belt 100 and a positioning mechanism mounted on its upper end. The positioning mechanism includes a U-shaped plate 200 mounted on the upper end of the electric conveyor belt 100. The U-shaped plate 200 is equipped with a coding component for printing on cartons. The coding component includes an electric telescopic rod 600 located in the middle of the upper end of the U-shaped plate 200. A coding machine 601 is mounted at the lower end of the telescopic end of the electric telescopic rod 600. L-shaped sliding plates 201 are slidably connected to symmetrically arranged sliding openings on the lower sides of both ends of the U-shaped plate 200. The U-shaped plate 200 is equipped with a driving component for moving the L-shaped sliding plates 201. First rotating rods 202 are rotatably connected to slots at the inner ends of the L-shaped sliding plates 201. Positioning plates 203 are provided on the outer arc surface of 02. Rotating components for driving the first rotating rod 202 on the L-shaped sliding plate 201 are provided inside each L-shaped sliding plate 201. Sliding grooves 204 are provided at the ends of the positioning plates 203. Positioning blocks 205 are slidably connected in the sliding grooves 204. The positioning blocks 205 are locked and positioned by locking components. The locking components include rectangular through holes 206 respectively provided on the outer side of the positioning plates 203 near each sliding groove 204. Threaded posts 207 are provided on the outer side of the positioning blocks 205. The threaded posts 207 pass through the adjacent rectangular through holes 206 on the same side and are threaded with threaded sleeves 208 at their ends. The threaded sleeves 208 abut against the outer side of the adjacent positioning plates 203 on the same side.

[0019] The operator first drives the L-shaped sliding plate 201 to move along the sliding opening of the U-shaped plate 200 by rotating the threaded rod 301 according to the size of the carton to be printed and the printing position requirements. The threaded end of the sliding plate 201 engages with the threaded hole of the U-shaped plate 200. By rotating it in both directions, the two L-shaped sliding plates 201 can be moved towards or away from each other, thereby dynamically adjusting the distance between the two positioning plates 203 and the center position formed by the positioning plates 203. At the same time, the operator moves the relative position of the positioning block 205 in the sliding groove 204 and tightens the threaded sleeve 208 so that it is in tight contact with the positioning plate 203, thereby locking the positioning block 205. This ensures that the positioning space formed by the two positioning blocks 205 and the two positioning plates 203 accurately positions the carton, enabling the printing of different sizes of cartons and different printing methods. To meet the positioning requirements, when the carton is conveyed to the area below the inkjet printing area by the electric conveyor belt 100, the positioning space formed by the two positioning blocks 205 and the two positioning plates 203 accurately positions the carton. The electric conveyor belt 100 stops operating, and the electric telescopic rod 600 drives the inkjet printer 601 to move down to the preset height, simultaneously starting the inkjet printing operation. After inkjet printing, the drive unit drives the first rotating rod 202 and the positioning plate 203 to swing outward to release the space. Then, the electric conveyor belt 100 starts to move the inkjet-printed carton out. Subsequently, all mechanisms reset and the inkjet printing operation is performed again, ensuring that the inkjet printer always focuses on the target area at a constant distance and angle. This significantly improves the consistency of the inkjet printing position of multiple batches of cartons, reduces the frequency of manual calibration, and reduces the scrap rate caused by positioning deviation.

[0020] like Figure 1-4 As shown, the driving component includes a fixing block 300 respectively disposed on the lower surface of the inner end of the L-shaped sliding plate 201. The outer surface of the fixing block 300 is rotatably connected with a threaded rod 301. The threaded rod 301 is threadedly connected to the threaded holes correspondingly disposed on the L-shaped plate 200. The rotating component includes a rectangular opening 400 respectively disposed on the upper end of the L-shaped sliding plate 201. The outer arc surface of the first rotating rod 202 is provided with a pulley 401. The vertical plate body of the L-shaped sliding plate 201 is rotatably connected with a second rotating rod 402. The upper end of the second rotating rod 402 extends into the adjacent rectangular opening 400 on the same side and is provided with a pulley 403 at the end. The pulley 403 and the pulley 401 located on the same L-shaped sliding plate 201 are connected by belt drive. The lower end of the electric conveyor belt 100 is also provided with a driving component for synchronously driving the second rotating rod 402 to rotate in the opposite direction.

[0021] The second rotating rods 402 and the second pulley 403 at both ends rotate synchronously in opposite directions. This linkage transmission is transmitted to the first rotating rod 202 and the positioning plate 203 via the belt, causing them to swing outward to release space and play a role in rapid driving.

[0022] like Figure 1-5As shown, the drive assembly includes mounting plates 500 symmetrically arranged on both sides of the lower end of the electric conveyor belt 100. Rotating rods 501 are rotatably connected within each mounting plate 500. Transmission rods 502 are slidably connected to the outer ends of the rotating rods 501. Each L-shaped sliding plate 201 has a mounting cavity 503 at its lower end. The outer ends of the transmission rods 502 are rotatably connected to rotating holes in adjacent mounting cavities 503 on the same side. A bevel gear 504 is provided at the end of each transmission rod 502 located within the inner cavity of the mounting cavity 503. The lower ends of the second rotating rods 402 extend to adjacent... The mounting cavity 503 has a bevel gear 505 at its end. The pulley 403 meshes with the bevel gear 504 located in the same mounting cavity 503. The outer end of the transmission rod 502 is cylindrical, while the other end is rectangular. The rectangular section of the transmission rod 502 is slidably connected to the rectangular groove provided at the outer end of the adjacent rotating rod 501 on the same side. The drive assembly also includes a double-headed motor 506 located at the lower end of the electric conveyor belt 100. The two output shafts of the double-headed motor 506 are fixedly connected to the inner end of the adjacent rotating rod 501 on the same side.

[0023] The rectangular segment of the transmission rod 502 is slidably connected to the rectangular groove at the outer end of the adjacent rotating rod 501 on the same side. This design ensures that the transmission is not interrupted when the two slide relative to each other. The dual-head motor 506 drives the rotating rods 501 on both sides to rotate synchronously. The rectangular groove at its outer end is linked with the rectangular segment of the transmission rod 502, causing the transmission rod 502 to swing around the rotating hole of the mounting cavity 503. Then, through the meshing transmission of bevel gear 1 504 and bevel gear 2 505, the second rotating rods 402 at both ends and the second pulley 403 are driven to rotate synchronously in opposite directions.

[0024] The working principle of the positioning device for carton inkjet printing provided by this utility model is as follows: First, the operator, based on the size of the carton to be printed and the required printing position, drives the L-shaped sliding plate 201 to move along the sliding opening of the U-shaped plate 200 by rotating the threaded rod 301. Its threaded end engages with the threaded hole of the U-shaped plate 200. By rotating forward and backward, the two L-shaped sliding plates 201 can be moved towards or away from each other, thereby dynamically adjusting the distance between the two positioning plates 203 and the center position formed by the positioning plates 203. Simultaneously, the relative position of the positioning block 205 within the sliding groove 204 is moved, and the threaded sleeve 208 is tightened to make it tightly contact the positioning plate 203, thereby locking the positioning block 205. This ensures that the positioning space formed by the two positioning blocks 205 and the two positioning plates 203 accurately positions the carton, meeting the positioning requirements for different sizes and printing positions of the printed carton. Subsequently, when the carton is transported to the area below the printing zone by the electric conveyor belt 100, the two positioning blocks 205 and the two positioning plates 203... The established positioning space precisely positions the carton. The electric conveyor belt 100 stops operating, and the electric telescopic rod 600 drives the inkjet printer 601 to move down to the preset height, simultaneously starting the inkjet printing operation. After inkjet printing, the dual-head motor 506 drives the rotating rods 501 on both sides to rotate synchronously. The rectangular groove at the outer end of the rod is linked with the rectangular section of the transmission rod 502, causing the transmission rod 502 to swing around the rotating hole of the mounting cavity 503. Then, through the meshing transmission of bevel gear 1 504 and bevel gear 2 505, the second rotating rods 402 at both ends and the second pulley 403 rotate synchronously in opposite directions. This linkage transmission is transmitted to the first rotating rod 202 and the positioning plate 203 via the belt, causing them to swing outward to release space. Then, the electric conveyor belt 100 starts to move the inkjet-printed carton out. Afterward, all mechanisms reset and inkjet printing is performed again, ensuring that the inkjet printer always focuses on the target area at a constant distance and angle. This significantly improves the consistency of the inkjet printing position of multiple batches of cartons, reduces the frequency of manual calibration, and reduces the scrap rate caused by positioning deviation.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A positioning device for inkjet printing on cardboard boxes, characterized in that: The device includes an electric conveyor belt (100) and a positioning mechanism disposed on its upper end. The positioning mechanism includes a U-shaped plate (200) disposed on the upper end of the electric conveyor belt (100). The U-shaped plate (200) is provided with a coding component for coding cartons. L-shaped sliding plates (201) are slidably connected to sliding openings symmetrically arranged at both lower ends of the U-shaped plate (200). The U-shaped plate (200) is provided with a driving component for driving the L-shaped sliding plates (201) to move. Each of the slots at the inner end of the L-shaped sliding plate (201) is rotatably connected to a first rotating rod (202). Each of the first rotating rods (202) has a positioning plate (203) on its outer arc surface. Each of the L-shaped sliding plates (201) has a rotating component for driving the first rotating rod (202) to rotate. Each of the positioning plates (203) has a sliding groove (204) at its end. Each of the sliding grooves (204) has a positioning block (205) slidably connected to it. Each of the positioning blocks (205) is locked and positioned by a locking component.

2. The positioning device for carton inkjet printing as described in claim 1, characterized in that: The locking component includes rectangular through-holes (206) respectively located on the outer side of the positioning plate (203) near each slide opening (204). The outer side of the positioning block (205) is provided with threaded post (207). The threaded post (207) passes through the adjacent rectangular through-holes (206) on the same side and is threaded with a threaded sleeve (208) at the end. The threaded sleeve (208) abuts against the outer side of the adjacent positioning plate (203) on the same side.

3. The positioning device for carton inkjet printing as described in claim 1, characterized in that: The driving component includes a fixing block (300) respectively disposed on the lower surface of the inner end of the L-shaped sliding plate (201). The outer surface of each fixing block (300) is rotatably connected with a threaded rod (301). The threaded rod (301) is threadedly connected to the corresponding threaded hole on the L-shaped plate (200).

4. The positioning device for carton inkjet printing as described in claim 1, characterized in that: The rotating component includes rectangular openings (400) respectively disposed on the upper end of the L-shaped sliding plate (201). Each of the outer arc surfaces of the first rotating rod (202) is provided with a pulley (401). Each of the vertical plates of the L-shaped sliding plate (201) is rotatably connected with a second rotating rod (402). The upper end of each of the second rotating rods (402) extends into the adjacent rectangular openings (400) on the same side and is provided with a pulley (403) at the end. The pulley (403) and pulley (401) located on the same L-shaped sliding plate (201) are connected by belt drive. The lower end of the electric conveyor belt (100) is also provided with a drive assembly for synchronously driving the second rotating rod (402) to rotate in the opposite direction.

5. A positioning device for carton inkjet printing as described in claim 4, characterized in that: The drive assembly includes mounting plates (500) symmetrically arranged on both sides of the lower end of the electric conveyor belt (100). Rotating rods (501) are rotatably connected to each mounting plate (500). Transmission rods (502) are slidably connected to the outer ends of the rotating rods (501). The lower ends of the L-shaped sliding plates (201) are provided with mounting cavities (503). The outer ends of the transmission rods (502) are rotatably connected to the rotating holes provided in the adjacent mounting cavities (503) on the same side. The end of the transmission rods (502) located in the inner cavity of the mounting cavity (503) is provided with a bevel gear (504). The lower ends of the second rotating rods (402) extend into the adjacent mounting cavities (503) on the same side and are provided with a bevel gear (505) at the end. The pulleys (403) are meshed with the bevel gears (504) located in the same mounting cavity (503).

6. The positioning device for carton inkjet printing as described in claim 5, characterized in that: The outer end of the transmission rod (502) is cylindrical, while the other end is rectangular. The rectangular section of the transmission rod (502) is slidably connected to the rectangular groove provided at the outer end of the adjacent rotating rod (501) on the same side.

7. A positioning device for inkjet printing on cartons as described in claim 5, characterized in that: The drive assembly also includes a dual-head motor (506) located at the lower end of the electric conveyor belt (100), and the two output shafts of the dual-head motor (506) are fixedly connected to the inner ends of the adjacent rotating rods (501) on the same side.

8. The positioning device for carton inkjet printing as described in claim 1, characterized in that: The coding component includes an electric telescopic rod (600) located at the middle of the upper end of the U-shaped plate (200), and a coding machine (601) is provided at the lower end of the telescopic end of the electric telescopic rod (600).

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