Marking machine

By introducing a lead screw jack and coupling into the printing press, combined with a servo motor and gear transmission system, the roller spacing is automatically adjusted, solving the problem of low efficiency in existing printing presses when adjusting steel plates of different thicknesses, and achieving a highly efficient and stable printing process.

CN223720429UActive Publication Date: 2025-12-26QUFU HONGYUAN MACHINERY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520543088.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-12-26
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

Existing printing presses require manual adjustment of the gap between rollers multiple times when adjusting steel plates of different thicknesses, resulting in low efficiency.

Method used

The lifting and lowering of the feed roller, idler roller, and feed roller is driven by a screw jack. Installation errors are compensated by a coupling. Combined with a servo motor and gear transmission system, the roller spacing is automatically adjusted to improve efficiency.

Benefits of technology

It achieves automatic adjustment of roller spacing, avoiding multiple manual adjustments, improving printing efficiency, and ensuring printing quality and stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223720429U_ABST
    Figure CN223720429U_ABST
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Abstract

The utility model relates to the technical field of printing machines, in particular to a marking machine which comprises a rack, a driving leading-in roller, a printing rubber roller, a driving leading-out roller and a leading-in compression roller parallel to the driving leading-in roller are arranged on the rack in a rotating structure mode, and the leading-in compression roller is arranged on one side of the driving leading-in roller. A carrier roller parallel to the printing rubber roller is arranged on the rack on one side of the printing rubber roller, a leading-out compression roller parallel to the driving leading-out roller is arranged on the rack on one side of the driving leading-out roller, six lead screw lifters are arranged on the rack in a fixed structure mode, and the six lead screw lifters are arranged at the two ends of the leading-in compression roller, the carrier roller and the leading-out compression roller in pairs and are arranged at the two ends of the leading-in compression roller, the carrier roller and the leading-out compression roller respectively. The input ends of the lead screw lifters are connected through the rotating shafts, the input end of one lead screw lifter is rotated, the other lead screw lifter can be rotated at the same time to drive the lead-in compression roller or the carrier roller or the lead-out compression roller to ascend and descend, working efficiency is improved, and operation deviation caused by inclination of the lead screw lifters is avoided.
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Description

Technical fields:

[0001] This application relates to the field of printing press technology, and in particular to label printing machines. Background technology:

[0002] Color steel roofing sheets, also known as colored profiled sheets, are profiled sheets made of color-coated steel sheets that are cold-bent into various waveforms by roll forming. Color steel sheets, also known as color-coated steel sheets, are products made from cold-rolled steel sheets, electro-galvanized steel sheets, hot-dip galvanized steel sheets, or aluminum-zinc coated steel sheets as substrates. After surface degreasing, phosphating, and chromate treatment, they are coated with organic paint and baked. Currently, after the color steel sheets are produced, trademarks need to be printed on the outside of the color steel sheets.

[0003] Currently, printing presses are generally used to print trademarks. However, when marking trademarks on steel plates of different thicknesses, it is necessary to manually adjust the distance between the rollers. The existing adjustment structure is not synchronized, requiring two workers to make multiple adjustments to maintain a consistent gap between them, which is inefficient. Utility Model Content:

[0004] To solve the above-mentioned technical problems, this utility model provides a label printing machine. The technical problem it solves is that existing adjustment mechanisms are not synchronized, requiring two workers to make multiple adjustments to maintain a consistent gap between them, resulting in low efficiency. To solve the above-mentioned technical problems, the technical solution adopted by this utility model is:

[0005] A label printing machine, characterized in that it includes:

[0006] frame;

[0007] The active feed roller is connected to the frame via a rotating structure.

[0008] The guide roller is arranged in parallel with the active guide roller, and the guide roller is set on the frame on the same side as the active guide roller;

[0009] The printing roller is connected to the frame via a rotating structure.

[0010] A support roller is placed alongside the printing roller on the frame, and the support roller is set on one side of the printing roller;

[0011] The inking mechanism is located on the frame on one side of the printing roller;

[0012] The active guide roller is connected to the frame via a rotating structure.

[0013] The guide pressure roller is located alongside the active guide roller and is mounted on the frame on the same side as the active guide roller.

[0014] The six screw jacks are connected to the frame in a fixed structure, and each two of the six screw jacks are arranged at two ends of the leading-in compression roller, the supporting roller and the leading-out compression roller respectively.

[0015] The shaft is used to connect the input ends of each group of screw jacks.

[0016] The first power mechanism is connected to the frame and used to drive the leading-in roller and the leading-out roller to rotate.

[0017] The second power mechanism is connected to the frame and used to drive the ink applying mechanism and the printing rubber roller to rotate.

[0018] Further, the shaft is provided with a coupling at two ends, and the shaft is connected to the input ends of the screw jacks through the coupling.

[0019] Further, the input ends of the screw jacks are provided with hand wheels.

[0020] Further, the two ends of the leading-in compression roller, the supporting roller and the leading-out compression roller are provided with sliding bearing seats, and the sliding bearing seats are connected to the frame in a sliding structure.

[0021] Further, the leading-in roller and the leading-out roller are rubber rollers.

[0022] Further, the leading-out compression roller is provided with a rubber sleeve outside.

[0023] Further, the ink applying mechanism comprises an ink box connected to the frame in a fixed structure, the ink box is provided with an ink applying roller on one side for dipping ink, and the frame is provided with an ink applying steel roller on the side of the ink applying roller, and the outer circumferential surface of the ink applying steel roller is in contact with the ink applying roller and the printing rubber roller.

[0024] Further, the second power mechanism comprises a servo motor, a driving gear, a first driven gear and a second driven gear, the output end of the servo motor is connected to the driving gear through a key, and the driving gear, the first driven gear and the second driven gear are connected in sequence.

[0025] The driving gear is fixedly connected to the printing rubber roller.

[0026] The first driven gear is fixedly connected to the ink applying steel roller.

[0027] The second driven gear is fixedly connected to the ink applying roller.

[0028] Further, the ink applying mechanism comprises a flow channel opened in the center of the printing rubber roller, and the flow channel is provided with a through hole communicating with the outer circumferential surface of the printing rubber roller.

[0029] The beneficial effects of this utility model are: by setting screw jacks at both ends of the inlet pressure roller, the idler roller and the outlet pressure roller, the input ends of the same set of screw jacks are connected by a rotating shaft, and a set of screw jacks can be rotated simultaneously by handwheel to drive the inlet pressure roller or idler roller or outlet pressure roller to rise or fall, thereby improving work efficiency and avoiding deviation caused by tilting.

[0030] By using a coupling, offsets caused by installation errors can be compensated for, ensuring the power transmission of the two screw jacks. Attached image description:

[0031] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of this utility model.

[0032] Figure 2 This is a top view structural diagram of Embodiment 1 of this utility model.

[0033] Figure 3 This is a cross-sectional structural diagram of Embodiment 2 of this utility model.

[0034] In the picture:

[0035] 1. Frame, 2. Active guide roller, 3. Guide pressure roller, 4. Printing rubber roller, 5. Support roller, 6. Active export roller, 7. Export pressure roller, 8. Screw lifter, 9. Rotary shaft, 10. Handwheel, 11. Rubber sleeve, 12. Ink cartridge, 13. Ink coating roller, 14. Ink coating steel roller, 15. Servo motor, 16. Drive gear, 17. First driven gear, 18. Second driven gear, 19. Flow channel. Detailed implementation method:

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0037] A label printing machine is characterized by comprising a frame 1, wherein the frame 1 is rotatably equipped with an active guide roller 2, a printing roller 4, and an active export roller 6, an guide pressure roller 3 arranged parallel to the active guide roller 2, the guide pressure roller 3 being located on one side of the frame 1, a support roller 5 arranged parallel to the printing roller 4, and an export pressure roller 7 arranged parallel to the active export roller 6, the frame 1 being fixedly equipped with six screw jacks 8, the six screw jacks 8 being arranged in pairs at both ends of the guide pressure roller 3, the support roller 5, and the export pressure roller 7, respectively. The input ends of each pair of screw jacks 8 are connected by a rotating shaft 9, and rotating the input end of one screw jack 8 can simultaneously rotate another screw jack to drive the guide pressure roller, the support roller, or the export pressure roller to rise or fall, thereby improving work efficiency and preventing tilting that could cause operational deviation.

[0038] It should be noted that the shaft 9 is provided with a shaft coupling at both ends, and the shaft 9 is connected to the input end of the screw lift 8 through the shaft coupling. By providing the shaft coupling, the offset caused by the installation error can be compensated, and the power transmission of the two screw lifts can be ensured.

[0039] In order to facilitate operation, a hand wheel 10 is arranged at the input end of the screw lift 8.

[0040] It should be noted that the two ends of the leading-in pressure roller 3, the carrier roller 5 and the leading-out pressure roller 7 are provided with sliding bearing seats, the sliding bearing seats are connected to the rack 1 in a sliding structure, and the sliding bearing seats can be driven to slide up and down along the rack 1 by the screw lift 8.

[0041] The driving leading-in roller 2 and the leading-in pressure roller 3 are rubber rollers, which increase the friction with the steel plate and ensure stable transmission.

[0042] In order to avoid smearing the already printed trademarks, two rubber sleeves 11 are arranged outside the leading-out pressure roller 7, so that there is a certain space between the leading-out pressure roller 7 and the driving leading-out roller 6, and the trademarks pass through the space between the two rubber sleeves 11.

[0043] The first power mechanism is connected to the rack 1 for driving the driving leading-in roller 2 and the driving leading-out roller 6 to rotate. The first power mechanism can be a motor, a servo motor, a speed reducer, a rotary motor or the like, or a chain wheel and chain transmission structure.

[0044] In this embodiment, the ink applying mechanism includes an ink box 12 connected to the rack 1 in a fixed structure. An ink applying roller 13 for dipping ink is arranged on one side of the ink box 12. An ink applying steel roller 14 is rotatably arranged on the rack 1 on one side of the ink applying roller 13. The outer circumferential surface of the ink applying steel roller 14 is in contact with the ink applying roller 13 and the printing rubber roller 4.

[0045] Specifically, the second power mechanism includes a servo motor 15, a driving gear 16, a first driven gear 17 and a second driven gear 18. The output end of the servo motor 15 is connected to the driving gear 16 through a key. The driving gear 16, the first driven gear 17 and the second driven gear 18 are connected in sequence. The driving gear 16 is fixedly connected to the printing rubber roller 4. The first driven gear 17 is fixedly connected to the ink applying steel roller 14. The second driven gear 18 is fixedly connected to the ink applying roller 13.

[0046] In another embodiment, the ink applying mechanism includes a flow channel 19 opened in the center of the printing rubber roller 4. A rotary joint communicating with the flow channel 19 is arranged at one end of the printing rubber roller 4. The flow channel 19 is connected to an ink inlet pipe through the rotary joint. The flow channel 19 is provided with a through hole communicating with the outer circumferential surface of the printing rubber roller 4. Ink penetrates to the surrounding of the printing plate through the through hole.

[0047] The working principle and working process of the utility model are described as follows by using example one:

[0048] The servo motor 15 is started, and a first power mechanism such as a speed reducer motor.

[0049] The steel plate enters between the driving entry roller 2 and the entry compression roller 3, between the printing rubber roller 4 and the supporting roller 5, and between the driving exit roller 6 and the exit compression roller 7 in sequence; the servo motor 15 drives the first driven gear 17 through the driving gear 16, the first driven gear 17 drives the second driven gear 18, and then drives the printing rubber roller 4, the inking roller 13 and the inking steel roller 14 to rotate, so as to transfer the ink in the ink box 12 to the inking steel roller 14 through the inking roller 13, and then print the trademark on the surface of the steel plate.

[0050] If it is necessary to adjust the distance between the driving entry roller 2 and the entry compression roller 3 according to the thickness of the steel plate, the hand wheel 10 is rotated, the hand wheel 10 drives the input end of the screw jack 8 to rotate, the input end of the screw jack 8 drives the rotating shaft 9 to rotate, and then the rotating force is transmitted to the other screw jack 8 in the same group, so that the entry compression roller 3 can be lifted at both ends at the same time.

[0051] In the description of the utility model, it should be understood that the directions or position relationships indicated by the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Although the utility model is described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of the utility model described herein.

Claims

1. A marking machine, characterized in that include: Rack (1); Active guide roller (2) is connected to the frame (1) by a rotating structure; The guide roller (3) is arranged in parallel with the active guide roller (2), and the guide roller (3) is set on the frame (1) on one side of the active guide roller (2); Printing roller (4) is connected to frame (1) by a rotating structure; A support roller (5) is arranged alongside the printing roller (4), and the support roller (5) is set on the frame (1) on one side of the printing roller (4); The inking mechanism is set on the frame (1) on one side of the printing roller (4); Active guide roller (6) is connected to the frame (1) by a rotating structure; The guide roller (7) is arranged in parallel with the active guide roller (6), and the guide roller (7) is set on the frame (1) on one side of the active guide roller (6); The screw jacks (8) are connected to the frame (1) in a fixed structure. The six screw jacks (8) are set in pairs at both ends of the inlet pressure roller (3), the support roller (5) and the outlet pressure roller (7). Rotary shaft (9) is used to connect the input end of each set of screw jacks (8); The first power mechanism is connected to the frame (1) and is used to drive the active guide roller (2) and the active discharge roller (6) to rotate. The second power mechanism is connected to the frame (1) and is used to drive the ink coating mechanism and the printing roller (4) to rotate.

2. The marking machine according to claim 1, characterized in that: The shaft (9) is equipped with couplings at both ends, and the shaft (9) is connected to the input end of the screw jack (8) through the couplings.

3. The marking machine according to claim 1 or 2, characterized in that: The input end of the screw jack (8) is equipped with a handwheel (10).

4. The marking machine of claim 3, wherein: The infeed roller (3), the idler roller (5) and the outfeed roller (7) are all provided with sliding bearing seats at both ends, and the sliding bearing seats are connected to the frame (1) in a sliding structure.

5. The pad printing machine of claim 1, wherein: Both the active guide roller (2) and the guide pressure roller (3) are rubber rollers.

6. The pad printing machine of claim 1, wherein: The outer sleeve of the pressure roller (7) is fitted with a rubber sleeve (11).

7. The pad printing machine of claim 1, wherein: The ink coating mechanism includes an ink cartridge (12) that is fixedly connected to the frame (1). An ink coating roller (13) for dipping ink is provided on one side of the ink cartridge (12). An ink coating steel roller (14) is rotatably provided on the frame (1) on one side of the ink coating roller (13). The outer circumferential surface of the ink coating steel roller (14) is in contact with the ink coating roller (13) and the printing roller (4).

8. The pad printing machine of claim 7, wherein: The second power mechanism includes a servo motor (15), a drive gear (16), a first driven gear (17) and a second driven gear (18). The output end of the servo motor (15) is connected to the drive gear (16) via a key. The drive gear (16), the first driven gear (17) and the second driven gear (18) are meshed and connected in sequence. The drive gear (16) is fixedly connected to the printing roller (4); The first driven gear (17) is fixedly connected to the ink-coating steel roller (14); The second driven gear (18) is fixedly connected to the ink roller (13).

9. The pad printing machine of claim 1, wherein: The inking mechanism includes a flow channel (19) opened in the center of the printing roller (4), and the flow channel (19) is connected to a through hole that leads to the outer peripheral surface of the printing roller (4).