Balance adjusting structure with scales

Abstract

The utility model relates to the technical field of printers, in particular to a balance adjusting structure with scales, which comprises a printing head fixing plate shaft fixedly connected to a bearing; the adjusting plate is connected outside the side plate in a sliding manner; a limiting groove A is formed in the adjusting plate; the mounting plate is rotationally connected to the side plate; the eccentric wheel is fixedly connected to the mounting plate; the limiting groove B is fixedly connected to the side edge of the side plate; the locking rod is in key connection with the eccentric wheel; and the reset spring is fixedly connected between the locking rod and the eccentric wheel. According to the adjusting structure, the locking rod synchronously rotating with the eccentric wheel and the limiting groove B matched with the locking rod in a clamping mode are arranged, so that the locking function of the eccentric wheel is achieved, the position of the eccentric wheel is fixed after the eccentric wheel rotates and is adjusted, the eccentric wheel does not rotate any more, and therefore the effect of improving the adjusting precision of the adjusting structure is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of printers, and more particularly to a scaled balance adjustment structure. Background Technology

[0002] During the printer manufacturing process, in order to ensure the printing effect, the print head and the roller need to be in full contact. However, during printer assembly, due to processing errors and assembly errors, the fit between the print head and the roller is not good enough. It is necessary to use a balance adjustment device to fine-tune the print head and ensure that the print head and the roller are parallel, thereby ensuring the clarity of the print.

[0003] Current balancing devices use eccentric wheel rotation for fine-tuning, which utilizes the change in distance between the edge position and the axis of rotation as the eccentric wheel rotates. This method provides smooth control and high fine-tuning accuracy. However, in existing technologies, the rotation of the eccentric wheel is unrestricted. After fine-tuning, the eccentric wheel may rotate back due to paper tension and other external forces, thus affecting the fine-tuning results of existing balancing devices and limiting their adjustment accuracy. Utility Model Content

[0004] To address the aforementioned technical deficiencies, this invention proposes a graduated balance adjustment structure that can improve adjustment accuracy.

[0005] The technical implementation scheme of this utility model is as follows: a scaled balance adjustment structure, comprising: a frame;

[0006] Rubber roller, a rubber roller mounted on the frame;

[0007] Side plate, a side plate that is fixedly connected to the side of the frame;

[0008] Adjustment plate, which is slidably connected to the outside of the side plate;

[0009] Bearings, bearings mounted on the adjusting plate;

[0010] A printhead fixing plate shaft is fixedly connected to the bearing. The printhead fixing plate shaft passes through the side plate. A printhead fixing plate is fixed on the printhead fixing plate shaft by screws. The printhead is fixed on the printhead fixing plate by screws. Moving the printhead fixing plate shaft will cause the printhead to move horizontally until it is in close contact with the rubber roller.

[0011] Limiting groove A is provided on the adjusting plate;

[0012] Mounting plate, rotatably connected to the mounting plate on the side plate;

[0013] An eccentric wheel is fixedly connected to the mounting plate. The eccentric wheel is set in the limiting groove A. The rotation of the eccentric wheel will cause the adjusting plate to move through the limiting groove A.

[0014] Limiting groove B, fixedly connected to the side of the side plate, the limiting groove B is arranged in a ring with equal spacing;

[0015] A locking rod is keyed to the eccentric wheel. The end of the locking rod is provided with a locking block that can be engaged in the limiting groove B to restrict the rotation of the locking rod and the eccentric wheel.

[0016] A return spring is fixedly connected between the locking rod and the eccentric wheel. The return spring is used to reset the relative position between the locking rod and the eccentric wheel.

[0017] In a preferred embodiment of the present invention, it further includes: a rotating plate, which is rotatably connected to the mounting plate. The rotating plate is rotated so that it is perpendicular to the mounting plate, and the rotation of the mounting plate is controlled by the rotating plate.

[0018] The protrusion is fixedly connected to the rotating plate. When the rotating plate rotates, the protrusion will contact the locking rod and push the locking rod to slide relative to the eccentric wheel.

[0019] In a preferred embodiment of the present invention, it further includes: a magnetic block, which is fixedly connected to the mounting plate and can be magnetically connected to the rotating plate.

[0020] In a preferred embodiment of the present invention, the mounting plate is further provided with a groove, wherein the mounting plate has grooves on both sides, and the grooves provide control space for rotating the plate.

[0021] In a preferred embodiment of the present invention, it further includes: a limiting post, wherein the adjusting plate is provided with a slot, and the limiting post is fixedly connected to the side plate, the limiting post being located in the slot to restrict the movement direction of the adjusting plate.

[0022] In a preferred embodiment of the present invention, it further includes: a scale strip, which is fixedly connected to the side plate and is located next to the mounting plate;

[0023] The pointer is fixedly attached to the mounting plate and points to the scale bar.

[0024] Compared with the prior art, the present invention has the following advantages: The present invention achieves the locking function of the eccentric wheel by setting a locking rod that rotates synchronously with the eccentric wheel and a limiting groove B that engages with the locking rod. After the eccentric wheel has finished rotating and completed the adjustment, its position will be fixed, so that the eccentric wheel will no longer rotate, thereby improving the adjustment accuracy of the adjustment structure.

[0025] This invention, by setting a rotating plate and a protrusion, allows a person to control the rotation of the mounting plate using the rotating plate without the need for external tools, making the invention convenient to use; and by utilizing the rotation of the rotating plate, the protrusion cooperates with the eccentric wheel to unlock the restriction on the eccentric wheel, so that the process does not require additional operation, simplifying the operation steps of this invention and making it convenient to use.

[0026] This invention ensures that the print head fixing plate shaft and the print head remain parallel to the rubber roller during fine-tuning by setting the movement direction of the limiting column guide adjustment plate, thus preventing misalignment between the print head and the rubber roller after fine-tuning and ensuring the adjustment effect of the adjustment structure.

[0027] This invention uses a pointer in conjunction with a scale bar. The pointer points to the scale bar, enabling precise display of the rotation data of the eccentric wheel, thus allowing the user to better control the actual operation of the rotating eccentric wheel. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0029] Figure 2 This is an exploded view of the connection structure of the adjusting plate, eccentric wheel and mounting plate of this utility model.

[0030] Figure 3 This is an exploded view of the connection structure between the limiting groove B and the locking rod of this utility model.

[0031] Figure 4 This is a schematic diagram of the cooperation structure between the limiting groove B and the locking rod of this utility model.

[0032] The markings in the attached diagram are as follows: 1: frame, 101: roller, 2: printhead fixing plate shaft, 201: bearing, 3: side plate, 4: adjusting plate, 5: limit groove A, 6: eccentric wheel, 7: mounting plate, 8: scale bar, 9: limit groove B, 10: locking rod, 11: return spring, 12: rotating plate, 13: protrusion, 14: magnet, 15: groove, 16: limit post, 17: pointer. Detailed Implementation

[0033] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0034] Example: A graduated balance adjustment structure, such as Figures 1-4As shown, it includes: a frame 1, which is installed inside the printer; a rubber roller 101, which is fixedly installed on the frame 1; a side plate 3, which is fixedly connected to the right side of the frame 1; an adjusting plate 4, which is slidably installed on the right side of the side plate 3; a bearing 201, which is installed on the adjusting plate 4; a printhead fixing plate shaft 2, which is fixedly installed on the bearing 201, and passes through the side plate 3. A printhead fixing plate is fixed to the printhead fixing plate shaft 2 by screws, and the printhead is fixed to the printhead fixing plate by screws. Moving the adjusting plate 4 causes the bearing 201 and the printhead fixing plate shaft 2 to move together, and moving the printhead fixing plate shaft 2 will cause the printhead on it to be moved horizontally to be close to the rubber roller 101; a limiting groove A5, which is provided on the adjusting plate 4; and a mounting plate 7, which is rotatably installed on the side plate 3. Mounting plate 7 is located on the right side of side plate 3; eccentric wheel 6, fixedly installed on the left side of mounting plate 7, is set in limiting groove A5, and the rotation of eccentric wheel 6 will cause adjusting plate 4 to move through limiting groove A5; limiting groove B9, fixedly installed on the left side of side plate 3, is arranged in a ring with equal spacing; locking rod 10, keyed to the locking rod 6, so that the locking rod 10 can rotate relative to the eccentric wheel 6 and also rotate with the eccentric wheel 6, and the left end of the locking rod 10 is provided with a locking block, which can be locked into the limiting groove B9 to restrict the rotation of locking rod 10 and eccentric wheel 6; and return spring 11, sleeved on the locking rod 10, with both ends of the return spring 11 fixed to the locking rod 10 and the eccentric wheel 6 respectively, and the return spring 11 is used to reset the relative position between the locking rod 10 and the eccentric wheel 6.

[0035] When it is necessary to adjust the printhead fixing plate shaft 2 to make the printhead contact the rubber roller 101, first press the locking rod 10 to slide to the left relative to the eccentric wheel 6. The return spring 11 is compressed, causing the locking block on the locking rod 10 to disengage from the limiting groove B9, thus unlocking the fixation of the eccentric wheel 6. Then, the mounting plate 7 can be rotated, and the mounting plate 7 will drive the eccentric wheel 6 to rotate and press the adjusting plate 4 to move, thereby driving the printhead fixing plate shaft 2 and the printhead to move. This achieves micro-adjustment between the printhead and the rubber roller 101, ensuring that the printhead and the rubber roller 101 remain parallel while maintaining contact. After completion, release the locking rod 10, the return spring 11 returns to its original position, and the locking rod 10 slides to the right relative to the eccentric wheel 6 to reset, causing the locking block on the locking rod 10 to re-engage in the limiting groove, preventing the locking rod 10 and even the eccentric wheel 6 from rotating. This achieves the locking of the eccentric wheel 6, preventing the eccentric wheel 6 from rotating back, and thus improving the adjustment accuracy of the adjustment structure.

[0036] like Figure 1 and Figure 3As shown, it also includes: a rotating plate 12, a rotating plate 12 rotatably mounted on a mounting plate 7, with two rotating plates 12 provided on the mounting plate 7, the rotation axes of the two rotating plates 12 being located in a position close to each other; and a protrusion 13, a protrusion 13 fixedly mounted on the rotating plate 12, the protrusion 13 being located in the middle position between the rotating plates 12, the protrusion 13 being able to contact the locking rod 10 and push the locking rod 10 to slide relative to the eccentric wheel 6; and a magnetic block 14, a magnetic block 14 fixedly mounted on the mounting plate 7, the magnetic block 14 being able to magnetically connect with the rotating plate 12.

[0037] When it is necessary to rotate the mounting plate 7, rotate the rotating plate 12 so that it is perpendicular to the mounting plate 7. Then the mounting plate 7 can be rotated using the rotating plate 12 without the need for auxiliary tools such as pliers, making the rotation control of the mounting plate 7 more convenient. While rotating the rotating plate 12, the protrusion 13 on the rotating plate 12 moves to the left, thereby pressing the locking rod 10 to move to the left and disengage from the limit groove B9, unlocking the fixation of the eccentric wheel 6. After the adjustment is completed, release the rotating plate 12. At the same time, the return spring 11 resets the locking rod 10, and the locking rod 10 will push the rotating plate 12 back to its original position through the protrusion 13. At the same time, the magnetic block 14 will attract the rotating plate 12 to ensure the reset of the rotating plate 12, so as to maintain the normal function of the rotating plate 12.

[0038] like Figure 3 As shown, it also includes: a groove 15. Grooves 15 are provided on both sides of the mounting plate 7. The grooves 15 provide control space for rotating the rotating plate 12, so that when using the rotating plate 12, people can better control its rotation and disengage it from the magnetic block 14, thereby providing convenience for the use of the rotating plate 12.

[0039] like Figures 1-2 As shown, it also includes: a limiting post 16. The adjusting plate 4 is provided with a slot. The limiting post 16 is fixedly installed on the side plate 3. The limiting post 16 is located in the slot to limit the movement direction of the adjusting plate 4. By limiting the movement direction of the adjusting plate 4, it is ensured that the print head fixing plate shaft 2 and the print head can always remain parallel to the rubber roller 101 when fine-tuning, so as to prevent the print head and the rubber roller 101 from being misaligned after fine-tuning, thereby ensuring the adjustment effect of the adjusting structure.

[0040] like Figures 1-2 As shown, it also includes: a scale bar 8, which is fixedly installed on the side plate 3 and is located on the rear side of the mounting plate 7; and a pointer 17, which is fixedly installed on the mounting plate 7 and points to the scale bar 8. When the mounting plate 7 rotates, it will cause the position of the pointer 17 pointing to the scale bar 8 to change synchronously, so as to accurately display the rotation data of the eccentric wheel 6 and obtain the offset distance of the print head, so that people can better control the actual operation of rotating the eccentric wheel 6.

[0041] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A graduated balance adjustment structure, characterized in that, include: Rack (1); Rubber roller (101), a rubber roller (101) disposed on the frame (1); Side plate (3), which is fixedly connected to the side of the frame (1); Adjustment plate (4), which is slidably connected to the outside of the side plate (3); Bearing (201), bearing (201) mounted on the adjusting plate (4); Print head fixing plate shaft (2), the print head fixing plate shaft (2) is fixedly connected to the bearing (201), the print head fixing plate shaft (2) passes through the side plate (3), the print head fixing plate is fixed on the print head fixing plate shaft (2) by screws, the print head is fixed on the print head fixing plate by screws, the print head fixing plate shaft (2) moves to make the print head move to be close to the rubber roller (101); Limiting groove A (5), the adjusting plate (4) is provided with limiting groove A (5); Mounting plate (7), rotatably connected to the side plate (3); Eccentric wheel (6), fixedly connected to the mounting plate (7), the eccentric wheel (6) is set in the limiting groove A (5), the rotation of the eccentric wheel (6) will cause the adjusting plate (4) to move through the limiting groove A (5); Limiting groove B (9), fixedly connected to the side of the side plate (3), the limiting groove B (9) is arranged in a ring with equal spacing; Locking rod (10), keyed to the locking rod (10) on the eccentric wheel (6), the end of the locking rod (10) is provided with a locking block, which can be locked into the limiting groove B (9) to restrict the rotation of the locking rod (10) and the eccentric wheel (6); A return spring (11) is fixedly connected between the locking rod (10) and the eccentric wheel (6). The return spring (11) is used to reset the relative position between the locking rod (10) and the eccentric wheel (6).

2. The graduated balance adjustment structure according to claim 1, characterized in that, Also includes: Rotating plate (12), rotating plate (12) connected to the mounting plate (7), rotating plate (12) so that rotating plate (12) is perpendicular to mounting plate (7), and controlling the rotation of mounting plate (7) through rotating plate (12); The protrusion (13) is fixedly connected to the rotating plate (12). When the rotating plate (12) rotates, the protrusion (13) will contact the locking rod (10) and push the locking rod (10) to slide relative to the eccentric wheel (6).

3. The graduated balance adjustment structure according to claim 2, characterized in that, Also includes: Magnetic block (14), fixedly connected to the mounting plate (7), magnetic block (14) can be magnetically connected to the rotating plate (12).

4. The graduated balance adjustment structure according to claim 3, characterized in that, Also includes: Grooves (15): Grooves (15) are provided on both sides of the mounting plate (7), and grooves (15) provide control space for rotating plate (12).

5. The graduated balance adjustment structure according to claim 4, characterized in that, Also includes: The limiting post (16) is provided with a slot on the adjusting plate (4). The limiting post (16) is fixedly connected to the side plate (3). The limiting post (16) is located in the slot to restrict the movement direction of the adjusting plate (4).

6. The graduated balance adjustment structure according to claim 5, characterized in that, Also includes: A scale bar (8) is fixedly connected to the side plate (3) and is located next to the mounting plate (7); Pointer (17), fixedly connected to the mounting plate (7), points to the scale bar (8).

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