Stable printing mechanism for trademark printing equipment and operation method
By designing a calibration stabilization component and a stabilization auxiliary mechanism in the trademark printing equipment, the problem of tilting during the paper substrate transportation process is solved, achieving stable transportation and printing stability of the paper substrate, and adapting to different paper specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO HAIGONG PRINTING CO LTD
- Filing Date
- 2026-01-22
- Publication Date
- 2026-04-14
AI Technical Summary
In existing trademark printing equipment, the paper substrate lacks stable calibration during the conveying process, which makes the head prone to tilting and affects printing stability.
Design a smooth printing mechanism for trademark printing equipment, including an unwinding drum, a conveyor roller, a calibration smoothing component, and a stabilization auxiliary mechanism. By using a calibration retaining ring and a rotating pressure cylinder in combination, ensure that the head of the paper substrate is parallel to the axis of the conveyor drum. The rotating pressure cylinder and a compensating pressure cylinder work together to provide a flattening effect, ensuring stable conveying of the paper substrate.
It improves the conveying stability of paper substrates, ensures the smoothness of printing work, adapts to paper substrates of different widths and specifications, and reduces friction damage.
Smart Images
Figure CN121848815A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of printing mechanism technology, and in particular to a smooth printing mechanism and operating method for trademark printing equipment. Background Technology
[0002] The existing Chinese authorized patent document with announcement number CN220661961U discloses a traction speed adjustment mechanism for trademark printing equipment. The solution "uses friction discs and friction plates to achieve transmission between the power wheel and the traction roller through friction, and adjusts the magnitude of friction through a pressure adjustment mechanism to adjust the speed of the traction roller, so that the traction speed of the traction roller is consistent with the traction speed of the printing mechanism, avoiding label deformation and tearing, and thus ensuring the stability of the label substrate traction."
[0003] The above solution improves the operational stability of the printing paper substrate by setting up a corresponding speed regulation mechanism. In the printing process, the paper substrate is generally conveyed by multiple conveyor rollers to ensure its stability during the conveying process. That is, when the paper substrate is conveyed to the printing mechanism, it can be printed stably. However, when the rolled-up paper substrate is initially pulled out and conveyed by the conveyor rollers, there is a lack of a stable calibration function for the paper substrate. That is, the head of the paper substrate is prone to tilting. Therefore, the stability of the paper substrate during conveying and subsequent printing by the printing mechanism cannot be guaranteed.
[0004] Therefore, this invention proposes a smooth printing mechanism and operating method for trademark printing equipment to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide a smooth printing mechanism and operating method for trademark printing equipment, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a stable printing mechanism for trademark printing equipment, comprising a base and a support plate frame disposed on the base, wherein an unwinding cylinder for unwinding paper substrate is disposed on the base; Conveying rollers and auxiliary pressure rollers are also provided on the inner side of the support plate frame; An adjustment component is provided on the conveyor roller, which provides up-and-down movement adjustment to ensure the tension of the paper substrate during conveying; The conveyor roller is also equipped with a calibration stabilization component and a stabilization auxiliary mechanism; the calibration stabilization component is used to provide a conveying calibration function for the head of the paper substrate to avoid the problem of tilted conveying. The calibration stabilization component and the stabilization auxiliary mechanism work together to provide a stable feeding effect for paper substrates, thereby improving the stability of paper substrate printing. The stabilizing auxiliary mechanism includes a mounting arc plate and a limiting plate; The stabilizing auxiliary mechanism also includes a fixed top plate located at the bottom of the movable insert, the fixed top plate being located at the top of the connector, and connecting shafts being symmetrically fixed on both sides of the bottom of the connector; One end of the connecting shaft is connected to an auxiliary bearing embedded in one end of the rotating pressure cylinder, which provides a flattening effect on the paper substrate.
[0007] Preferably, the control component includes a connecting slider fixedly disposed at one end of the conveying roller body; The connecting slider is installed in the loading box, and a connecting bearing is provided on the top of the connecting slider; The connecting bearing is located at the bottom of the adjusting screw, which is threaded through and located at the top of the loading box. An adjusting handle is located at the top of the adjusting screw.
[0008] Preferably, the connecting slider is controlled by using both the control handle and the control screw to provide up-and-down movement control, so as to provide an up-and-down effect for the conveyor roller.
[0009] Preferably, the calibration stabilization component includes a conveyor cylinder disposed on the conveyor roller; External threaded columns are symmetrically fixed at both ends of the conveying cylinder.
[0010] Preferably, the external threaded column is threaded to be adapted to the threaded connection part, and a calibration retaining ring is provided on one side of the external threaded column. The calibration retaining ring is used to provide a limiting calibration effect on both sides of the head of the paper substrate. An auxiliary ramp is also provided at the opening of the calibration retaining ring; Rotational auxiliary protrusions are equidistantly arranged on the calibration retaining ring to improve the ease of rotation of the calibration retaining ring.
[0011] Preferably, a scale line is also provided on the outer wall of the conveying cylinder, which provides an auxiliary function for the adjustment of the calibration retaining ring.
[0012] Preferably, the mounting arc plate is fixedly mounted on the external threaded column by screws, the mounting arc plate is fixedly mounted at the bottom end of the support rod, and the support rod is connected to the bearing frame; The support frame is provided in two sets, one of which has a loading box on its bottom side; The loading box is rectangular and extends through its length. A connecting plate is provided at the top opening of the loading box, and a limit groove is provided at the top opening of the loading box. The connecting plate is fixedly connected to the bottom side of the support frame by screws. A movable insert is also movably connected in the loading box. An auxiliary spring is fixedly installed at the top of the movable insert. The top of the auxiliary spring is fixedly connected to a limiting plate. The limiting plate is adapted to and snaps into the limiting groove at the top opening of the loading box.
[0013] Preferably, an adjusting screw groove is also provided on the end face of the other end of the rotating pressure cylinder; The adjusting screw groove is threadedly connected to the adjusting screw thread, and the adjusting screw thread is fixedly set at one end of the compensating pressure cylinder, which provides an adjustment function.
[0014] A method for operating a smooth printing mechanism in a trademark printing equipment, the method being as follows: S1: When unwinding and conveying the paper substrate, the head of the paper substrate is first calibrated by the calibration stabilization component. That is, the head of the paper substrate passes through the conveyor cylinder and is calibrated and limited by the calibration retaining rings symmetrically set on both sides of the conveyor cylinder to avoid the head of the paper substrate from tilting, so that the head of the paper substrate is parallel to the axis of the conveyor cylinder. Before this, the position of the calibration retaining ring on the conveying cylinder needs to be adjusted so that the distance between the two calibration retaining rings is adapted to the width of the paper substrate. S2: Then, the paper substrate is flattened by the combined use of the rotating pressure cylinder and the compensating pressure cylinder in the stabilizing auxiliary mechanism, and then the paper substrate is passed between the auxiliary pressure rollers. S3: To ensure stable delivery of the paper substrate and to guarantee the smoothness of subsequent printing operations.
[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention discloses a stable printing mechanism for trademark printing equipment. It includes a base and a support frame mounted on the base. An unwinding drum is mounted on the base for unwinding paper substrate. A conveyor roller and an auxiliary pressure roller are also mounted inside the support frame. One end of the conveyor roller is connected to a control component, which provides vertical adjustment to ensure the tension of the paper substrate during transport. A calibration and stabilization component and a stabilization auxiliary mechanism are also mounted on the conveyor roller. The calibration and stabilization component provides a calibrating effect on the head of the paper substrate to prevent tilting during transport. The calibration and stabilization component and the stabilization auxiliary mechanism work together to provide a stable transport effect for the paper substrate, thereby improving the stability of the printing process. The calibration retaining rings on the conveyor cylinder are adjusted according to the width of the paper substrate, ensuring that the distance between the two calibration retaining rings is the same as the width of the paper substrate. The calibration retaining rings, which are symmetrically arranged on both sides of the conveyor cylinder, are used for calibration and limiting to prevent the head of the paper substrate from tilting, thus ensuring that the head of the paper substrate is parallel to the axis of the conveyor cylinder. The combined use of the two calibration retaining rings can handle paper substrates of different widths, providing good operational flexibility. Based on this, the rotating pressure cylinder and the compensating pressure cylinder in the calibration stabilization component are used together to provide a contact and flattening effect on the paper substrate, ensuring the stability of the paper substrate transport, and thus ensuring the stability of the subsequent printing work. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the front side connection of the stable printing mechanism structure of the present invention; Figure 2 This is a schematic diagram of the rear side connection of the stable printing mechanism structure of the present invention; Figure 3 for Figure 2 Enlarged schematic diagram of the structural connection at point A in the middle; Figure 4 This is a schematic diagram showing the connection between the conveying roller and the conveying cylinder structure of the present invention; Figure 5 This is a partial cross-sectional view of the connection between the conveying cylinder and the calibration retaining ring structure of the present invention; Figure 6 for Figure 5 Enlarged schematic diagram of the structural connection at point B; Figure 7 This is a schematic diagram of the top connection of the stabilizing auxiliary mechanism structure of the present invention; Figure 8 This is a schematic diagram of the bottom connection of the stabilizing auxiliary mechanism structure of the present invention; Figure 9 for Figure 8 Enlarged schematic diagram of the structural connection at point C; Figure 10 This is an exploded top view of the connection between the rotating pressure cylinder and the compensating pressure cylinder structure of the present invention; Figure 11 for Figure 10 Enlarged schematic diagram of the structural connection at point D; Figure 12 This is an exploded bottom view of the connection between the rotating pressure cylinder and the compensating pressure cylinder structure of the present invention; Figure 13 for Figure 12 Enlarged schematic diagram of the structural connection at point E in the middle.
[0017] In the diagram: Base 1, Support plate frame 11, Unwinding drum 2, Paper substrate 21, Auxiliary pressure roller 3, Conveying roller body 4, Connecting slider 501, Connecting bearing 502, Loading box 503, Adjusting screw 504, Adjusting handle 505, Conveying cylinder body 601, Scale line 602, External threaded column 603, Calibration retaining ring 604, Threaded connection part 605, Rotating auxiliary protrusion 606, Auxiliary ramp 607, Mounting arc plate 701, Support rod 702, Bearing frame 703, Loading box body 704, Connecting plate 705, Limiting groove 706, Movable insert 707, Auxiliary spring 708, Limiting plate 709, Fixed top plate 801, Connecting body 802, Connecting shaft 803, Auxiliary bearing 804, Rotating pressure cylinder 805, Adjusting screw groove 806, Adjusting screw thread 807, Compensating pressure cylinder 808. Detailed Implementation
[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.
[0019] Example 1: Please refer to Figures 1-13 A stable printing mechanism for trademark printing equipment includes a base 1 and a support plate frame 11 disposed on the base 1. An unwinding cylinder 2 for unwinding paper substrate 21 is disposed on the base 1. A conveying roller 4 and an auxiliary pressure roller 3 are also disposed on the inner side of the support plate frame 11. An adjustment component is provided on the conveying roller 4 to provide up-and-down movement adjustment to ensure the tension of the paper substrate 21 during conveying. A calibration and stabilization component and a stabilization auxiliary mechanism are also provided on the conveying roller 4. The calibration and stabilization component is used to provide a conveying calibration function for the head of the paper substrate 21 to avoid tilting during conveying. The calibration and stabilization component and the stabilization auxiliary mechanism work together to provide a stable conveying effect for the paper substrate 21, thereby improving the stability of the printing operation of the paper substrate 21.
[0020] According to the appendix Figure 1-6 As shown, when the paper substrate 21 is unwound and conveyed, the head of the paper substrate 21 is first calibrated by the calibration stabilizing component. That is, the head of the paper substrate 21 passes through the conveying cylinder 601 and is calibrated and limited by the calibration retaining rings 604 symmetrically arranged on both sides of the conveying cylinder 601 to avoid the head of the paper substrate 21 from tilting, so that the head of the paper substrate 21 is parallel to the axis of the conveying cylinder 601.
[0021] The calibration retaining rings 604 on the conveying cylinder 601 are aligned according to the width of the paper substrate 21, ensuring that the distance between the two calibration retaining rings 604 is the same as the width of the paper substrate 21. The combined use of the two calibration retaining rings 604 can accommodate paper substrates 21 of different widths, providing good operational flexibility. Subsequently, the rotating pressure cylinder 805 and the compensating pressure cylinder 808 in the calibration stabilization assembly work together to provide contact and flattening for the paper substrate 21, ensuring the smooth conveying of the paper substrate 21 and thus ensuring the stable conveying of the paper substrate 21, thereby ensuring the stability of subsequent printing operations.
[0022] From the appendix Figure 2-3 As shown, the control component includes a connecting slider 501 fixedly disposed at one end of the conveying roller 4; the connecting slider 501 is disposed in the loading box 503, and a connecting bearing 502 is disposed at the top of the connecting slider 501; the connecting bearing 502 is connected to the bottom end of the control screw 504, the control screw 504 is threadedly disposed at the top of the loading box 503, and a control handle 505 is disposed at the top of the control screw 504; the control handle 505 and the control screw 504 work together to provide up-and-down movement control of the connecting slider 501, so as to provide an up-and-down effect for the conveying roller 4.
[0023] In other words, if a loosening problem occurs during the conveying of the paper substrate 21, it can be adjusted by the control component. Specifically, by rotating the control screw 504 with the control handle 505, the connecting slider 501 at the bottom of the control screw 504 is moved upward. Then, the locking nut threaded on the control screw 504 is rotated to tighten it, thus providing a locking effect on the controlled screw 504. At the same time, the connecting slider 501 moves the conveying roller 4 connected to it upward, which in turn moves the conveying cylinder 601 to squeeze the paper substrate 21 upward until the paper substrate 21 is tensioned.
[0024] Then from the appendix Figure 4-6 As shown, it can be seen that before conveying the paper substrate 21, the head of the paper substrate 21 needs to be calibrated and limited to avoid the head of the paper substrate 21 not being parallel to the axis of the conveying cylinder 601 during the conveying process, which would cause the tilting problem and lead to printing quality problems.
[0025] The calibration stabilization component includes a conveyor cylinder 601 fixedly mounted on the conveyor roller 4; external threaded posts 603 are symmetrically fixed at both ends of the conveyor cylinder 601. The external threaded posts 603 are threadedly connected to the threaded connection part 605, and a calibration retaining ring 604 is provided on one side of the external threaded posts 603. The calibration retaining ring 604 is used to provide a limiting calibration effect on both sides of the head of the paper substrate 21.
[0026] Simply rotate the calibration retaining rings 604 on both sides of the conveying cylinder 601 until the distance between the two calibration retaining rings 604 matches the width of the paper substrate 21. To improve the ease of rotating the calibration retaining rings 604, this solution also provides rotating auxiliary protrusions 606 at equal intervals on the calibration retaining rings 604. That is, hold the area with the rotating auxiliary protrusions 606 with both hands to rotate the calibration retaining rings 604, so as to avoid slippage when rotating the calibration retaining rings 604.
[0027] To further improve the accuracy of the calibration retaining ring 604 adjustment and avoid repeated adjustments, this solution also provides a scale line 602 on the outer wall of the conveying cylinder 601. This scale line 602 provides an auxiliary function for the adjustment of the calibration retaining ring 604. That is, after determining the width of the paper substrate 21, the position of the calibration retaining ring 604 is adjusted. With the center position of the conveying cylinder 601 as the center of symmetry, the calibration retaining ring 604 is adjusted until the distance between the two calibration retaining rings 604 is the same as the width of the paper substrate 21.
[0028] This solution also includes an auxiliary ramp 607 at the ring opening of the calibration retaining ring 604. The purpose is to facilitate the placement of the paper substrate 21, placing the paper substrate 21 on the top surface of the conveying cylinder 601, and limiting the side wall of the paper substrate 21 through the calibration retaining ring 604; to ensure that the paper substrate 21 is conveyed smoothly and straight, which has a positive effect on the printing work.
[0029] Combined with the appendix Figure 1 and appendix Figure 8-13 As shown, it can be understood that the paper substrate 21 is flattened by the combined use of the rotating pressure cylinder 805 and the compensating pressure cylinder 808 in the stabilizing auxiliary mechanism.
[0030] An adjusting screw groove 806 is provided on the end face of the other end of the rotating pressure cylinder 805. The adjusting screw groove 806 is threadedly connected to the adjusting screw post 807, and the adjusting screw post 807 is fixedly set at one end of the compensating pressure cylinder 808. The compensating pressure cylinder 808 provides an adjustment function. The compensating pressure cylinder 808 is equivalent to an adjustment function. That is, the compensating pressure cylinder 808 and the rotating pressure cylinder 805 together form a flattening cylinder. The compensating pressure cylinder 808 is adjusted by the cooperation of the adjusting screw post 807 and the adjusting screw groove 806, thereby adjusting the length of the entire flattening cylinder. The purpose is to adapt to paper substrates 21 of different widths.
[0031] In other words, the flattening cylinder provides a contact effect to the paper substrate 21 located between the two calibration retaining rings 604, so as to provide a smoothing effect on the paper substrate 21. When the width of the paper substrate 21 is different, on the one hand, it is necessary to adjust the position of the two calibration retaining rings 604, and at the same time, it is also necessary to adjust the length of the flattening cylinder to adapt to the paper substrate 21 with different widths. This is achieved by rotating the compensating pressure cylinder 808, which is adjusted by extending and retracting the compensating pressure cylinder 808.
[0032] The stabilizing auxiliary mechanism includes a mounting arc plate 701; the mounting arc plate 701 is fixedly mounted on the external threaded column 603 by screws, the mounting arc plate 701 is fixedly mounted on the bottom end of the support rod 702, and the support rod 702 is connected to the bearing frame 703; the bearing frame 703 is provided in two sets, one of which is provided with a loading box 704 on the bottom side.
[0033] The loading box 704 is rectangular and extends through its length. A connecting plate 705 is provided at the top opening of the loading box 704, and a limiting groove 706 is provided at the top opening of the loading box 704. The connecting plate 705 is fixedly connected to the bottom of the support frame 703 by screws. A movable insert 707 is also movably inserted into the loading box 704. An auxiliary spring 708 is fixedly installed at the top of the movable insert 707. The top of the auxiliary spring 708 is fixedly connected to the limiting plate 709. The limiting plate 709 is adapted to and snapped into the limiting groove 706 at the top opening of the loading box 704.
[0034] The purpose of setting up the movable insert 707 and the auxiliary spring 708 here is, on the one hand, to provide a flexible effect for the flattening cylinder composed of the pressure cylinder 808 and the rotating pressure cylinder 805, that is, to make the flattening cylinder make flexible contact and squeeze the paper substrate 21; on the other hand, when the paper substrate 21 is laid on the conveying cylinder 601, the flattening cylinder is first pulled up a certain distance, and then the paper substrate 21 is laid and adhered to the conveying cylinder 601. Then the flattening cylinder is released. At this time, the flattening cylinder is reset under the action of the auxiliary spring 708, and the flattening cylinder contacts the upper surface of the paper substrate 21.
[0035] The stabilizing auxiliary mechanism also includes a fixed top plate 801 located at the bottom of the movable insert 707. The fixed top plate 801 is located at the top of the connector 802, and connecting shafts 803 are symmetrically fixed on both sides of the bottom of the connector 802. One end of the connecting shaft 803 is connected to an auxiliary bearing 804 embedded in one end of the rotating pressure cylinder 805. The rotating pressure cylinder 805 provides a flattening effect on the paper substrate 21.
[0036] Then from the appendix Figure 7-9 As shown, this solution has two sets of support frames 703 at the top of the support rod 702. A set of loading boxes 704 and movable inserts 707 are set on the bottom side of one set of support frames 703 to install the flattening cylinder, while the bottom side of the other set of support frames 703 has two sets of loading boxes 704 and movable inserts 707 to install the flattening cylinder.
[0037] The connecting shaft 803 and the auxiliary bearing 804 are used together to install the rotating pressure cylinder 805. This is to provide a rotating effect for the pressure cylinder, so as to minimize frictional damage to the paper substrate 21 during the conveying process.
[0038] Another rotating pressure cylinder 805 is connected to the compensating pressure cylinder 808 through an adjusting screw groove 806 and an adjusting screw thread 807. This process is to provide a rotating function for adjusting the length of the flattening cylinder.
[0039] However, the connection between the two will create a flattening gap, that is, the paper substrate 21 passing through this position lacks the corresponding flattening effect. Therefore, a flattening cylinder is also set on another set, and the flattening cylinder of the other set provides a compensating flattening effect for the flattening gap position in the first flattening cylinder.
[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stable printing mechanism for a trademark printing equipment, comprising a base (1) and a support plate frame (11) disposed on the base (1), wherein an unwinding cylinder (2) for unwinding a paper substrate (21) is disposed on the base (1). Its features are: Inside the support frame (11), there are also conveying rollers (4) and auxiliary pressure rollers (3). An adjustment component is provided on the conveying roller (4) to provide up and down movement adjustment to ensure the tension of the paper substrate (21) during conveying; A calibration stabilization component and a stabilization auxiliary mechanism are also provided on the conveying roller (4); the calibration stabilization component is used to provide a conveying calibration function for the head of the paper substrate (21) to avoid the problem of tilted conveying; The calibration stabilization component and the stabilization auxiliary mechanism work together to provide a stable conveying effect for the paper substrate (21) to improve the stability of the printing operation of the paper substrate (21); The stabilizing auxiliary mechanism includes a mounting arc plate (701) and a limiting plate (709). The stabilizing auxiliary mechanism also includes a fixed top plate (801) disposed at the bottom of the movable insert (707), the fixed top plate (801) is disposed at the top of the connector (802), and connecting shafts (803) are symmetrically fixed on both sides of the bottom of the connector (802). One end of the connecting shaft (803) is connected to an auxiliary bearing (804) embedded in one end of the rotating pressure cylinder (805), which provides a flattening effect on the paper substrate (21).
2. The stable printing mechanism for trademark printing equipment according to claim 1, characterized in that: The control component includes a connecting slider (501) fixedly disposed at one end of the conveying roller body (4). The connecting slider (501) is disposed in the loading box (503), and a connecting bearing (502) is disposed on the top of the connecting slider (501). The connecting bearing (502) is connected to the bottom end of the adjusting screw (504), the adjusting screw (504) is threaded through and connected to the top of the loading box (503), and an adjusting handle (505) is provided on the top of the adjusting screw (504).
3. The stable printing mechanism for trademark printing equipment according to claim 2, characterized in that: The control handle (505) and the control screw (504) are used together to provide up and down movement control of the connecting slider (501) so as to provide an up and down effect for the conveying roller (4).
4. The stable printing mechanism for trademark printing equipment according to claim 1, characterized in that: The calibration stabilization component includes a conveying cylinder (601) disposed on the conveying roller (4). External threaded columns (603) are symmetrically fixed at both ends of the conveying cylinder (601).
5. The stable printing mechanism for trademark printing equipment according to claim 4, characterized in that: The external threaded post (603) is threadedly connected to the threaded connection part (605), and a calibration retaining ring (604) is provided on one side of the external threaded post (603). The calibration retaining ring (604) is used to provide a limiting calibration effect on both sides of the head of the paper substrate (21). An auxiliary ramp (607) is also provided at the ring opening of the calibration retaining ring (604). Rotational auxiliary protrusions (606) are equidistantly arranged on the calibration retaining ring (604) to improve the ease of rotation of the calibration retaining ring (604).
6. The stable printing mechanism for trademark printing equipment according to claim 5, characterized in that: A scale line (602) is also provided on the outer wall of the conveying cylinder (601), which provides an auxiliary function for the adjustment of the calibration retaining ring (604).
7. The stable printing mechanism for trademark printing equipment according to claim 4, characterized in that: The mounting arc plate (701) is fixedly mounted on the external threaded column (603) by screws. The mounting arc plate (701) is fixedly mounted on the bottom end of the support rod (702), and the support rod (702) is connected to the bearing frame (703). The support frame (703) is provided in two sets, one of which has a loading box (704) on its bottom side. The loading box (704) is rectangular and extends through the entire length of the loading box (704). A connecting plate (705) is provided at the top opening of the loading box (704), and a limiting groove (706) is provided at the top opening of the loading box (704). The connecting plate (705) is fixedly connected to the bottom side of the support frame (703) by screws. A movable insert (707) is also movably inserted into the loading box (704). An auxiliary spring (708) is fixedly installed at the top of the movable insert (707). The top of the auxiliary spring (708) is fixedly connected to the limiting plate (709). The limiting plate (709) is adapted to and snapped into the limiting groove (706) at the top opening of the loading box (704).
8. The stable printing mechanism for trademark printing equipment according to claim 1, characterized in that: An adjusting screw groove (806) is also provided on the end face of the other end of the rotating pressure cylinder (805). The adjusting screw groove (806) is threadedly connected to the adjusting screw (807), and the adjusting screw (807) is fixedly installed at one end of the compensating cylinder (808), which provides a regulating function.
9. A method for operating a smooth printing mechanism for a trademark printing equipment as described in any one of claims 1-8, characterized in that, The operation method is as follows: S1: When unwinding and conveying the paper substrate (21), the head of the paper substrate (21) is first limited and calibrated by the calibration stabilizing component. That is, the head of the paper substrate (21) passes through the conveying cylinder (601) and is calibrated and limited by the calibration retaining rings (604) symmetrically arranged on both sides of the conveying cylinder (601) to avoid the head of the paper substrate (21) from tilting, so that the head of the paper substrate (21) is parallel to the axis of the conveying cylinder (601). Before this, the position of the calibration retaining ring (604) on the conveying cylinder (601) needs to be adjusted so that the distance between the two calibration retaining rings (604) is adapted to the width of the paper substrate (21); S2: Then, by using the combination of the rotating pressure cylinder (805) and the compensating pressure cylinder (808) in the stabilizing auxiliary mechanism, a flattening effect is provided on the paper substrate (21), and then the paper substrate (21) is passed between the auxiliary pressure rollers (3); S3: Stable transport of the paper substrate (21) to ensure the smoothness of subsequent printing work.