Label paper feeding mechanism of printing machine

Abstract

The utility model discloses a label paper feeding mechanism of a printing machine, which relates to the technical field of paper feeding equipment of the printing machine and comprises a case, the top end of the case is fixedly connected with a storage box, and a plurality of paper roll bodies are arranged in the storage box. By means of the arranged paper feeding assembly, if automatic paper feeding needs to be carried out, firstly, a first servo motor is started through a controller, the first servo motor drives a paper feeding wheel to rotate, then a paper roll body in the paper feeding wheel is discharged, the paper roll body falls onto a containing plate through a through hole of a baffle under the influence of the baffle, then a second servo motor is started, and the paper roll body is placed on the containing plate through the through hole of the baffle. A second servo motor drives a threaded rod to rotate, the threaded rod drives a threaded block to move, then the threaded block drives a rotating wheel to move, the rotating wheel is embedded into a paper roll body, and therefore the work of automatically adding the paper roll body is completed, paper rolls can be automatically added in the printing process, and the downtime is shortened; therefore, continuous printing is achieved, and manual intervention is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of paper loading equipment for printing machines, and more specifically, to a label paper loading mechanism for a printing machine. Background Art

[0002] The paper loading equipment for a printing machine is an important part of printing machinery, mainly responsible for separating paper or other printing media from a paper stack or paper roll and accurately and smoothly feeding it into the next process of the printing machine. Modern printing machines generally consist of mechanisms such as plate mounting, inking, impression, and paper feeding. Among them, the paper feeding device is a device for installing, continuously supplying, and replacing web paper, mainly including parts such as a web paper support device, a paper loading device, and a paper splicing device (single sheet, web).

[0003] Patent document CN219620493U, a paper feeding mechanism for a label printing machine, includes a base. A unwinding roller, a pressing roller, a supporting roller, and a winding roller are sequentially arranged on the base from left to right. A tensioning roller is arranged between the unwinding roller and the pressing roller. A printing mechanism is arranged between the pressing roller and the supporting roller. Fixing plates are connected to both the front and rear sides of the base by bolts. The fixing plates are located between the unwinding roller and the pressing roller. A slider is slidably connected to the fixing plates. In the utility model, a combination of manual tensioning and automatic tensioning is used to tension the label paper during the paper feeding process. Through the upward thrust of the spring on the tensioning roller, the thrust is applied to the label paper, and the purpose of automatic adjustment can be achieved. In order to avoid the thrust applied by the spring being too large or too small, the height of the tensioning adjustment plate is adjusted by a hydraulic cylinder, thereby controlling the thrust applied to the label paper, and facilitating the tensioning adjustment of the label paper to a completely appropriate degree.

[0004] In view of the above related technologies, when the paper roll is used up, the existing printing machine needs to stop to replace a new paper roll for operation. This process not only takes time but also causes production interruption and reduces the overall production efficiency. In addition, frequent manual intervention increases the operation complexity and may be prone to errors and pose safety hazards. Therefore, we provide a label paper loading mechanism for a printing machine to solve the above problems. Summary of the Utility Model

[0005] In order to solve the above problems, the utility model provides a label paper loading mechanism for a printing machine, adopting the following technical scheme:

[0006] A paper loading mechanism for a label paper of a printing press, including a chassis. A storage box is fixedly connected to the top end of the chassis, and a plurality of paper roll bodies are arranged inside the storage box. A baffle and a placement plate are fixedly connected inside the chassis, and the baffle is located directly above the placement plate. Upper paper components are arranged on both sides of the baffle. A rotating wheel is movably connected inside the chassis, and adjusting mechanisms are movably connected to both ends of the rotating wheel respectively. One end of the adjusting mechanism is movably connected to the inner wall of the chassis, and a cylinder is fixedly connected to the outside of the chassis. The output end of the cylinder is fixedly connected with a push block, and one side of the push block is closely attached to the outer wall of the paper roll body.

[0007] Further, the upper paper component includes an upper paper wheel, a servo motor one, a threaded block, a threaded rod, and a servo motor two. The output end of the servo motor one is fixedly connected to one end of the upper paper wheel, and the upper paper wheel is located obliquely above the threaded block. The outer wall of the threaded rod is rotationally movably connected inside the threaded block through threads, and one end of the threaded rod is fixedly connected to the output end of the servo motor two.

[0008] By adopting the above technical solution, through the coordinated use of the servo motor one and the servo motor two, precise control over the rotation angle of the upper paper wheel and the position of the paper roll body can be achieved.

[0009] Further, the upper paper wheel is located directly above the baffle, the servo motor one is located outside the chassis, and the inside of the threaded block is movably connected to one end of the rotating wheel.

[0010] By adopting the above technical solution, through the provided baffle, when the upper paper wheel unloads the paper roll body, the baffle can guide the paper roll body to smoothly enter the placement plate.

[0011] Further, an installation plate is slidably connected to the bottom end of the threaded block, and an installation frame is fixedly connected to the top end of the installation plate.

[0012] By adopting the above technical solution, through the provided installation frame, the installation frame provides additional support for the entire upper paper component, enhancing the stability of its mechanism.

[0013] Further, the bottom end of the servo motor two is fixedly connected to the bottom end of the installation plate, and both the threaded block and the threaded rod are located inside the installation frame.

[0014] By adopting the above technical solution, through the provided installation frame, the installation frame provides protection for the threaded block and the threaded rod, preventing these components from being interfered with or damaged by external factors during operation.

[0015] Further, the adjusting mechanism includes an adjusting block, an adjusting frame, a telescopic rod and a spring. The top ends of the adjusting frame are respectively fixedly connected to the bottom ends of the two adjusting blocks, and the bottom ends of the adjusting blocks are respectively fixedly connected to one ends of the telescopic rod and the spring. The spring is sleeved on the outer wall of the telescopic rod.

[0016] By adopting the above technical solution, when more tension is required for the paper roll body, the spring will be compressed to provide additional pressure; when the tension needs to be reduced, the spring will relax to reduce the pressure.

[0017] Further, both ends of the rotating wheel are respectively movably connected to the inside of the two adjusting blocks, and one side of the adjusting block is slidably connected to the inner wall of the chassis. The bottom end of the adjusting frame is fixedly connected with an adjusting wheel through a connecting shaft.

[0018] By adopting the above technical solution, by adjusting the position of the adjusting block, fine adjustment of the tension of the paper roll body can be achieved.

[0019] Further, a rotating rod is movably connected to the inside of the chassis, and a servo motor three is fixedly connected to one end of the rotating rod. An eccentric wheel is fixedly connected to the outer wall of the rotating rod, and the convex surface of the eccentric wheel is closely attached to the outer wall of the adjusting wheel.

[0020] By adopting the above technical solution, due to the design of the eccentric wheel, when the servo motor three is activated, the eccentric wheel can automatically adjust the position of the adjusting wheel, thereby realizing automatic adjustment of the tension of the paper roll body.

[0021] In summary, the utility model includes the following beneficial technical effects:

[0022] (1) Through the paper loading assembly provided by the utility model, if automatic paper loading is required, first, the servo motor one is started through the controller, so that the servo motor one drives the paper loading wheel to rotate, and then the paper roll body in the paper loading wheel is unloaded. Affected by the baffle, the paper roll body falls into the placement plate through the through hole of the baffle. Then the servo motor two is started, so that the servo motor two drives the threaded rod to rotate. The threaded rod drives the threaded block to move, and then the threaded block drives the rotating wheel to move, so that the rotating wheel is embedded into the paper roll body, thus completing the work of automatically adding the paper roll body, which is beneficial to allowing automatic addition of paper rolls during the printing process and reducing the downtime, thereby realizing continuous printing and eliminating the need for manual intervention;

[0023] (2) Through the adjustment mechanism provided by the present utility model, during the conveyance of the paper roll body, the paper roll body may become loose or taut. To solve this problem, the controller in the system activates the servo motor three. At this time, the servo motor three drives the rotating rod to rotate, and the rotating rod drives the cam to rotate. The convex part of the cam contacts the adjusting wheel, thereby pushing the adjusting wheel to drive the adjusting frame to rise. As the adjusting frame rises, the adjusting block slides along the inner wall of the chassis, and then pushes the telescopic rod and the spring to perform telescopic movement. This process adjusts the tension of the paper roll body, helps to improve the conveyance state of the paper roll body and ensure the smooth conveyance of the paper roll body, thereby preventing damage to the paper roll body due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 is a schematic diagram of the internal structure of the overall mechanism of the present utility model;

[0026] Figure 3 is a schematic diagram of the partial structure of the present utility model;

[0027] Figure 4 is a schematic diagram of the connection mode between the threaded block and the runner of the present utility model;

[0028] Figure 5 is a schematic diagram of the paper feeding assembly and its connecting parts of the present utility model;

[0029] Figure 6 is a schematic diagram of the adjustment mechanism and its connecting parts of the present utility model.

[0030] Description of the reference numerals in the drawings:

[0031] 1, chassis; 2, storage box; 3, paper roll body; 4, baffle; 5, placement plate; 6, paper feeding assembly; 601, paper feeding wheel; 602, servo motor one; 603, threaded block; 604, threaded rod; 605, servo motor two; 7, runner; 8, adjustment mechanism; 801, adjusting block; 802, adjusting frame; 803, telescopic rod; 804, spring; 9, cylinder; 10, pushing block; 11, mounting plate; 12, mounting frame; 13, adjusting wheel; 14, rotating rod; 15, servo motor three; 16, cam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0033] The following will further elaborate on the present utility model in conjunction with the attached Figure 1-6 drawings.

[0034] Please refer to Figure 1-6 , a paper loading mechanism for the label paper of a printing press, including a chassis 1. A storage box 2 is fixedly connected to the top of the chassis 1, and a plurality of paper roll bodies 3 are arranged inside the storage box 2. A baffle 4 and a placement plate 5 are fixedly connected inside the chassis 1. It should be noted that by providing the baffle 4, when the paper loading assembly 6 unloads the paper roll body 3, the baffle 4 can guide the paper roll body 3 to smoothly enter the placement plate 5, and the baffle 4 is located directly above the placement plate 5. Paper loading assemblies 6 are arranged on both sides of the baffle 4. A runner 7 is movably connected inside the chassis 1, and both ends of the runner 7 are respectively movably connected to an adjustment mechanism 8. One end of the adjustment mechanism 8 is movably connected to the inner wall of the chassis 1, and a cylinder 9 is fixedly connected to the outside of the chassis 1. The output end of the cylinder 9 is fixedly connected to a push block 10, and one side of the push block 10 is closely attached to the outer wall of the paper roll body 3. Further, it should be noted that the design of the push block 10 is intended to automatically push out the paper roll after the paper roll body 3 is used up for the next round of paper loading operation.

[0035] Please refer to Figure 1-5, the paper feeding assembly 6 includes a paper feeding wheel 601, a first servo motor 602, a threaded block 603, a threaded rod 604, and a second servo motor 605. It should be noted that through the coordinated use of the first servo motor 602 and the second servo motor 605, precise control of the rotation angle of the paper feeding wheel 601 and the position of the paper roll body 3 can be achieved. The output end of the first servo motor 602 is fixedly connected to one end of the paper feeding wheel 601, and the paper feeding wheel 601 is located diagonally above the threaded block 603. The outer wall of the threaded rod 604 is rotationally and movably connected to the inside of the threaded block 603 through threads, and one end of the threaded rod 604 is fixedly connected to the output end of the second servo motor 605. The paper feeding wheel 601 is located directly above the baffle 4, the first servo motor 602 is located outside the chassis 1, one end of the threaded block 603 is movably connected to one end of the rotating wheel 7, the bottom end of the threaded block 603 is slidably connected to a mounting plate 11, and the top end of the mounting plate 11 is fixedly connected to a mounting frame 12. Further, it should be noted that through the provided mounting frame 12, the mounting frame 12 provides protection for the threaded block 603 and the threaded rod 604, preventing these components from being interfered with or damaged by external factors during operation. The bottom end of the second servo motor 605 is fixedly connected to the bottom end of the mounting plate 11, and both the threaded block 603 and the threaded rod 604 are located inside the mounting frame 12.

[0036] Please refer to Figure 1 and Figure 6 , the adjusting mechanism 8 includes an adjusting block 801, an adjusting frame 802, a telescopic rod 803, and a spring 804. It should be noted that when the paper roll body 3 requires more tension, the spring 804 will be compressed to provide additional pressure. When the paper roll body 3 requires less tension, the spring 804 will relax to reduce the pressure. The top ends of the adjusting frame 802 are respectively fixedly connected to the bottom ends of the two adjusting blocks 801, and the bottom ends of the adjusting blocks 801 are respectively fixedly connected to one ends of the telescopic rod 803 and the spring 804. The spring 804 is sleeved on the outer wall of the telescopic rod 803. Both ends of the rotating wheel 7 are respectively movably connected to the inside of the two adjusting blocks 801. Further, it should be noted that by adjusting the position of the adjusting block 801, fine adjustment of the tension of the paper roll body 3 can be achieved, and one side of the adjusting block 801 is slidably connected to the inner wall of the chassis 1. The bottom end of the adjusting frame 802 is fixedly connected to an adjusting wheel 13 through a connecting shaft. A rotating rod 14 is movably connected inside the chassis 1, and one end of the rotating rod 14 is fixedly connected to a third servo motor 15. A cam 16 is fixedly connected to the outer wall of the rotating rod 14, and the convex surface of the cam 16 is closely attached to the outer wall of the adjusting wheel 13.

[0037] The implementation principle of the embodiment of the present utility model is as follows: First, after the paper roll body 3 is placed in the storage box 2, the paper roll body 3 automatically falls into the upper paper wheel 601 under the influence of its own gravity. Secondly, the servo motor one 602 is started by the controller, so that the servo motor one 602 drives the upper paper wheel 601 to rotate, and then the paper roll body 3 in the upper paper wheel 601 is unloaded. Affected by the baffle 4, the paper roll body 3 falls into the placement plate 5 through the through hole of the baffle 4. Then the servo motor two 605 is started, so that the servo motor two 605 drives the threaded rod 604 to rotate, and the threaded rod 604 drives the threaded block 603 to move, and then the threaded block 603 pushes the runner 7 to move, so that the runner 7 is embedded into the paper roll body 3. At this time, the built-in automatic bonding component is used to automatically bond the paper roll body 3 with another paper roll body 3 for printing operations. When the paper roll body 3 is used up, the automatic cutting component cuts it. Subsequently, the cylinder 9 is started, and the used paper roll body 3 is pushed out and collected through the push block 10;

[0038] Subsequently, it enters the next automatic paper roll body 3 adding operation again to prepare for the next round of automatic paper roll body 3 adding operation. Such cyclic operations ensure the continuous operation of the printing machine. Finally, during the transportation of the paper roll body 3, the paper roll body 3 may be loose or tight. To solve this problem, the controller in the system activates the servo motor three 15. At this time, the servo motor three 15 drives the rotating rod 14 to rotate, and the rotating rod 14 drives the cam 16 to rotate. The convex part of the cam 16 contacts the adjusting wheel 13, thereby pushing the adjusting wheel 13 to drive the adjusting frame 802 to rise. As the adjusting frame 802 rises, the adjusting block 801 slides along the inner wall of the chassis 1, and then pushes the telescopic rod 803 and the spring 804 to perform telescopic movements. This process adjusts the tension of the paper roll body 3.

[0039] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A label paper loading mechanism of a printing press, comprising a housing (1), characterized in that: The top of the chassis (1) is fixedly connected to a storage box (2), and a plurality of paper roll bodies (3) are arranged inside the storage box (2); a baffle (4) and a placement plate (5) are fixedly connected inside the chassis (1), and the baffle (4) is located directly above the placement plate (5); both sides of the baffle (4) are provided with paper loading assemblies (6); a rotating wheel (7) is movably connected inside the chassis (1), and both ends of the rotating wheel (7) are movably connected to adjustment mechanisms (8), one end of the adjustment mechanism (8) is movably connected to the inner wall of the chassis (1), and a cylinder (9) is fixedly connected to the outer side of the chassis (1); a push block (10) is fixedly connected to the output end of the cylinder (9), and one side of the push block (10) is tightly attached to the outer wall of the paper roll body (3).

2. The label paper feeding mechanism of a printing press according to claim 1, characterized in that: The paper loading assembly (6) comprises a paper loading wheel (601), a servo motor 1 (602), a threaded block (603), a threaded rod (604) and a servo motor 2 (605); the output end of the servo motor 1 (602) is fixedly connected to one end of the paper loading wheel (601), and the paper loading wheel (601) is located obliquely above the threaded block (603); the outer wall of the threaded rod (604) is rotatably connected to the inside of the threaded block (603) through a thread, and one end of the threaded rod (604) is fixedly connected to the output end of the servo motor 2 (605).

3. The label paper feeding mechanism of a printing press according to claim 2, characterized in that: The upper paper wheel (601) is located directly above the baffle (4), the servo motor 1 (602) is located outside the chassis (1), and the interior of the threaded block (603) is movably connected to one end of the rotating wheel (7).

4. The label paper feeding mechanism of a printing press according to claim 3, characterized in that: The bottom end of the threaded block (603) is slidably connected to a mounting plate (11), and the top end of the mounting plate (11) is fixedly connected to a mounting frame (12).

5. The label paper feeding mechanism of a printing press according to claim 4, characterized in that: The bottom end of the servo motor 2 (605) is fixedly connected to the bottom end of the mounting plate (11), and the threaded block (603) and the threaded rod (604) are both located inside the mounting frame (12).

6. The label paper feeding mechanism of a printing press according to claim 1, characterized in that: The adjusting mechanism (8) comprises an adjusting block (801), an adjusting frame (802), a telescopic rod (803) and a spring (804); the top end of the adjusting frame (802) is fixedly connected to the bottom ends of the two adjusting blocks (801), and the bottom end of the adjusting block (801) is fixedly connected to one end of the telescopic rod (803) and the spring (804); and the spring (804) is sleeved on the outer wall of the telescopic rod (803).

7. The label paper feeding mechanism of a printing press according to claim 6, characterized in that: The two ends of the rotating wheel (7) are respectively movably connected to the inside of two adjustment blocks (801), and one side of the adjustment block (801) is slidably connected to the inner wall of the chassis (1), and the bottom end of the adjustment frame (802) is fixedly connected to the adjustment wheel (13) via a connecting shaft.

8. The label paper feeding mechanism of a printing press according to claim 7, characterized in that: The chassis (1) is movably connected to a rotating rod (14) inside, and one end of the rotating rod (14) is fixedly connected to a servo motor (15). The outer wall of the rotating rod (14) is fixedly connected to a cam (16), and the convex surface of the cam (16) is tightly attached to the outer wall of the adjusting wheel (13).

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