Novel carton printing machine

Abstract

The utility model discloses a novel carton printing machine which comprises a conveying frame, a motor is fixedly installed on the side wall face of the conveying frame, and a conveying belt is connected to a transmission roller arranged at the output end of the motor in a winding mode. According to the carton conveying device, the infrared sensor is adopted to sense the position of a carton on the conveying belt, when the carton is conveyed to the position below the infrared sensor, the controller starts the electric push rod to push the two connecting plates to move oppositely, the connecting plates push the corresponding U-shaped positioning frames to be close to the carton, and the two inclined ends, arranged in a horn shape, of the two ends of each U-shaped positioning frame are combined; the controller is used for adjusting the position of the carton in the middle and enabling the carton to be located under the silk-screen printing assembly, in the process, the controller starts the air cylinder to stretch, the air cylinder is promoted to push the silk-screen printing assembly to move downwards, and when the silk-screen printing assembly is connected with the carton on the conveying belt, the silk-screen printing assembly conducts silk-screen treatment on the carton. And an infrared sensor and a U-shaped positioning frame are adopted, so that positioning printing of the carton is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a novel carton printing machine. Background Art

[0002] A carton printing machine is a printing device that can print the required text, patterns and other information onto the surface of a carton. It generally includes processes such as plate mounting, inking, embossing and paper feeding. Cartons are commonly used packaging materials for items. In order to improve the aesthetics of item packaging, it is often necessary to print patterns on the cartons.

[0003] After searching, application number CN202221997092.1 is a carton printing machine, whose printing device includes a printing support seat, a first lifting drive device, a second lifting drive device, a pressure plate, an ink storage layer and a printing plate. The first lifting drive device is installed on the frame and drives the printing support seat to rise and fall. The printing plate is installed at the bottom of the printing support seat. The pressure plate is installed inside the printing support seat and is driven to rise and fall by the second lifting drive device and is located above the printing plate. An ink storage layer is provided between the pressure plate and the printing plate. The first lifting drive device, the second lifting drive device and the conveying device are all controlled and coordinated by a controller. Compared with the prior art, the utility model adopts a vertical embossing method for printing instead of a roller group pressing method, which can ensure that the carton board is straight and not deformed, and has an ink storage layer, so there is no need to add ink frequently, and the work efficiency is high.

[0004] However, the above solution does not provide a carton positioning mechanism, requiring staff to frequently adjust the carton position, which can easily lead to printing position deviation problems during the carton printing stage.

[0005] To this end, a new carton printing machine is proposed, which has the advantage of facilitating carton positioning and printing, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new type of carton printing machine.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a new type of carton printing machine, including a conveyor frame, a motor is fixedly installed on the side wall of the conveyor frame, and a conveyor belt is wound around the transmission roller arranged at the output end of the motor, the top surface of the conveyor frame is symmetrically provided with two fixed seats about the conveyor belt, and a screen printing machine is fixedly installed between the two fixed seats, a cylinder is fixed inside the housing of the screen printing machine, and a screen printing assembly is fixedly installed at the bottom of the cylinder, the screen plate of the screen printing assembly extends to the bottom of the screen printing machine, and the screen printing machine is fixed with a screen printing assembly. The screen plate of the screen printing assembly is located directly above the conveyor belt. An electric push rod is fixed to the lower surface of the fixed seat, and one end of the electric push rod passes through the fixed seat and is fixedly connected to a connecting plate. A U-shaped positioning frame is welded to the bottom of the connecting plate, and the U-shaped positioning frame is in contact with the conveyor belt, and inclined ends are respectively provided at both ends of the U-shaped positioning frame. An infrared sensor is installed at the bottom of the screen printing machine, and a controller is fixed on the top of the screen printing machine. The output end of the controller is electrically connected to the motor, the electric push rod and the cylinder respectively, and the infrared sensor is electrically connected to the controller.

[0008] As a further description of the above technical solution: a mounting plate is welded to the bottom end of the fixing seat, and a plurality of bolts fixedly connected to the conveying frame are interspersed on the surface of the mounting plate.

[0009] As a further description of the above technical solution: another transmission roller is provided on the inner side of the conveyor belt, and both ends of the transmission roller are rotatably connected to the inner side of the conveyor frame through shaft seats.

[0010] As a further description of the above technical solution: a guide sleeve is provided on both the left and right sides of the screen printing assembly, and two support rods connected with the guide sleeves are provided inside the screen printing machine.

[0011] As a further description of the above technical solution: the connecting plate is arranged parallel to the fixing seat, and two guide rods are arranged on the surface of the connecting rod and are connected to the fixing seat through insertion.

[0012] As a further description of the above technical solution: the inclined ends at both ends of the U-shaped positioning frame are arranged in a trumpet-shaped structure.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, an infrared sensor is used to sense the position of the carton on the conveyor belt. When the carton is conveyed to the bottom of the infrared sensor, the controller starts the electric push rod to push the two connecting plates to move toward each other, so that the connecting plates push the corresponding U-shaped positioning frame close to the carton. Combined with the two inclined ends of the U-shaped positioning frame that are arranged in a trumpet shape at both ends, the centering adjustment of the carton position is achieved and it is directly below the screen printing assembly. During this process, the controller starts the cylinder to extend, prompting the cylinder to push the screen printing assembly downward. When the screen printing assembly is connected to the carton on the conveyor belt, the screen printing assembly performs screen printing on the carton. Compared with the existing technology, the use of the infrared sensor and the U-shaped positioning frame makes it easy to position and print the carton, which is beneficial to improving the accuracy of the carton printing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a new carton printing machine of the utility model;

[0016] Figure 2 This is a schematic structural diagram of a screen printing machine of a new carton printing machine of the utility model;

[0017] Figure 3 This is a schematic diagram of the U-shaped positioning frame structure of a new carton printing machine in the utility model.

[0018] Legend:

[0019] 1. Conveyor rack; 2. Motor; 3. Conveyor belt; 4. Fixed base; 5. Screen printing machine; 6. Screen printing assembly; 7. Infrared sensor; 8. Electric push rod; 9. Connecting plate; 10. U-shaped positioning frame; 11. Controller; 12. Cylinder; 13. Guide rod; 14. Tilt end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0021] According to an embodiment of the utility model, a novel carton printing machine is provided.

[0022] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-3As shown, a new carton printing machine according to an embodiment of the present invention includes a conveyor frame 1, a motor 2 is fixedly installed on the side wall of the conveyor frame 1, and a conveyor belt 3 is wound and connected on the transmission roller arranged at the output end of the motor 2, two fixed seats 4 are symmetrically provided on the top surface of the conveyor frame 1 about the conveyor belt 3, and a screen printing machine 5 is fixedly installed between the two fixed seats 4, a cylinder 12 is fixed inside the shell of the screen printing machine 5, and a screen printing assembly 6 is fixedly installed at the bottom of the cylinder 12, the screen plate of the screen printing assembly 6 extends to the bottom of the screen printing machine 5, and the screen plate of the screen printing assembly 6 is directly above the conveyor belt 3, an electric push rod 8 is fixed on the lower surface of the fixed seat 4, and one end of the electric push rod 8 passes through the fixed seat 4 and is fixedly connected to a connecting plate 9, a U-shaped positioning frame 10 is welded to the bottom of the connecting plate 9, and the U-shaped positioning frame 10 is in contact with the conveyor belt 3, and inclined ends 14 are respectively provided at both ends of the U-shaped positioning frame 10, An infrared sensor 7 is installed at the bottom of the screen printing machine 5, and a controller 11 is fixed on the top of the screen printing machine 5. The output end of the controller 11 is electrically connected to the motor 2, the electric push rod 8 and the cylinder 12 respectively. The infrared sensor 7 is electrically connected to the controller 11. The control method of the present invention is to automatically control through the controller 11. The control circuit of the controller 11 can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and circuit connection in detail. The controller 11 is a common controller 11 on the market, which can be a single-chip processor, a PLC processor or an MCU processor. The principle of the screen printing machine 5 is an existing known technology, and there are mature products. Therefore, its principle is not further explained. The cylinder 12 is equipped with an air source to facilitate the extension and retraction of the cylinder 12;

[0023] In one embodiment, a mounting plate is welded to the bottom end of the fixing seat 4, and a plurality of bolts fixedly connected to the conveying frame 1 are interspersed on the surface of the mounting plate. The setting of the mounting plate facilitates the installation of the fixing seat 4 and facilitates the fixation of the screen printing machine 5.

[0024] In one embodiment, another transmission roller is provided on the inner side of the conveyor belt 3, and the two ends of the transmission roller are rotatably connected to the inner side of the conveyor frame 1 through the axle seat, that is, the conveyor belt 3 has two built-in transmission rollers, one of which is fixedly connected to the output end of the motor 2, and the other transmission roller is rotatably installed on the inner side of the conveyor frame 1, so that the conveyor belt 3 can transmit the cartons.

[0025] In one embodiment, a guide sleeve is provided on both sides of the screen printing assembly 6, and two support rods connected to the guide sleeve are provided inside the screen printing machine 5. The setting of the guide sleeve and the support rod is conducive to increasing the smoothness of the lifting and lowering of the screen printing assembly 6.

[0026] In one embodiment, the connecting plate 9 is arranged parallel to the fixing seat 4, and two guide rods 13 are arranged on the surface of the connecting rod and are connected to the fixing seat 4. The setting of the guide rods 13 can maintain the stability of the U-shaped positioning frame 10 during the moving stage.

[0027] In one embodiment, the inclined ends 14 at both ends of the U-shaped positioning frame 10 are arranged in a trumpet-shaped structure. Through the arrangement of the inclined ends 14, the port of the U-shaped positioning frame 10 forms a trumpet-shaped expansion structure, which is easy to guide the carton and keep it in a centered state.

[0028] Working principle:

[0029] When in use, first place the cartons one by one on the conveyor belt 3 of the conveyor frame 1, and start the motor 2 to drive the conveyor belt 3 to transport the cartons. When printing, the position of the carton on the conveyor belt 3 is sensed by the infrared sensor 7. When the carton is conveyed to the bottom of the infrared sensor 7, the controller 11 first cuts off the power supply of the motor 2 and stops transporting the carton. Then the controller 11 starts the electric push rod 8 to push the two connecting plates 9 to move toward each other, so that the connecting plates 9 push the corresponding U-shaped positioning frame 10 close to the carton. Combined with the two inclined ends 14 of the trumpet-shaped arrangement at both ends of the U-shaped positioning frame 10, the skewed carton is fine-tuned to achieve the centering adjustment of the carton position and make it directly below the screen printing assembly 6. During this process, the controller 11 starts the cylinder 12 to extend, prompting the cylinder 12 to push the screen printing assembly 6 downward. When the screen printing assembly 6 is connected to the carton on the conveyor belt 3, the screen printing assembly 6 performs silk-screen processing on the carton. This reciprocating process is used to achieve printing of batch cartons one by one.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel carton printing machine, comprising a conveyor frame (1), characterized in that: A motor (2) is fixedly mounted on the side wall of the conveyor frame (1), and a conveyor belt (3) is wound and connected on a transmission roller provided at the output end of the motor (2). Two fixed seats (4) are symmetrically provided on the top surface of the conveyor frame (1) with respect to the conveyor belt (3), and a screen printing machine (5) is fixedly mounted between the two fixed seats (4). A cylinder (12) is fixed inside the housing of the screen printing machine (5), and a screen printing assembly (6) is fixedly mounted at the bottom of the cylinder (12). The screen plate of the screen printing assembly (6) extends to the bottom of the screen printing machine (5), and the screen plate of the screen printing assembly (6) is located directly above the conveyor belt (3). The lower surface of the fixed seat (4) is fixed to the bottom of the housing. An electric push rod (8) is fixed on the surface, and one end of the electric push rod (8) passes through the fixed seat (4) and is fixedly connected to a connecting plate (9), a U-shaped positioning frame (10) is welded to the bottom of the connecting plate (9), and the U-shaped positioning frame (10) is in contact with the conveyor belt (3), and inclined ends (14) are respectively provided at both ends of the U-shaped positioning frame (10), an infrared sensor (7) is installed at the bottom of the screen printing machine (5), and a controller (11) is fixed on the top of the screen printing machine (5), the output end of the controller (11) is electrically connected to the motor (2), the electric push rod (8) and the cylinder (12), and the infrared sensor (7) is electrically connected to the controller (11).

2. A new carton printing machine according to claim 1, characterized in that: A mounting plate is welded to the bottom end of the fixing seat (4), and a plurality of bolts fixedly connected to the conveying frame (1) are interspersed on the surface of the mounting plate.

3. The novel carton printing machine according to claim 1 is characterized in that: Another transmission roller is provided on the inner side of the conveyor belt (3), and both ends of the transmission roller are rotatably connected to the inner side of the conveyor frame (1) through shaft seats.

4. The novel carton printing machine according to claim 1 is characterized in that: A guide sleeve is provided on both the left and right sides of the screen printing assembly (6), and two support rods sleeved with the guide sleeve are provided inside the screen printing machine (5).

5. The novel carton printing machine according to claim 1 is characterized in that: The connecting plate (9) is arranged parallel to the fixing seat (4), and two guide rods (13) are arranged on the surface of the connecting rod and are connected to the fixing seat (4) through insertion.

6. The novel carton printing machine according to claim 1 is characterized in that: The inclined ends (14) at both ends of the U-shaped positioning frame (10) are arranged in a trumpet-shaped structure.

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