Compact disc printer

Abstract

The utility model discloses an optical disc printer, which comprises a side plate, a fixed plate, a top plate and a bottom plate, the top plate is fixedly connected with the upper end of the fixed plate; the bottom plate is fixedly connected with the lower end of the fixing plate; an optical disc printing channel is arranged on one side of the side plate and located below the bottom plate. A sliding rail parallel to the side plates is arranged in the length direction of the fixing plate. A lead screw is arranged between the sliding rail and the side plate, one end of the lead screw is rotationally connected to the top plate, and the other end of the lead screw is rotationally connected to the bottom plate. The lead screw is sleeved with a first elastic piece, a sliding pressing plate and a lower connecting plate. The sliding pressing plate slides on the sliding rail and moves along with rotation of the lead screw. The lower connecting plate is connected with a printing head; the first elastic piece is arranged between the sliding pressing plate and the lower connecting plate; the screw rod rotates to drive the sliding pressing plate to press the lower connecting plate, so that the printing head ascends and descends relative to the optical disc printing channel; the printing head has floating amount, so that the printing head is prevented from rigidly contacting with the optical disc to cause abrasion of the surface of the optical disc.

Description

Technical Field

[0001] The utility model relates to the technical field of optical disc printing, and particularly to an optical disc printer. Background Art

[0002] As a key digital storage tool, optical discs are widely used in multiple fields, such as data preservation, software distribution, music and video entertainment, data backup, and long-term archiving and storage. When performing long-term archiving, in order to improve the recognizability of optical discs and simplify the data management process, it is usually necessary to print labels on the optical discs or directly print information;

[0003] In the design of traditional optical disc printers, when the print head prints on an optical disc, if the height adjustment of the print head is not in place, the print head will directly make rigid contact with the surface of the optical disc; this rigid contact method not only increases the risk of scratching or damaging the surface of the optical disc, but also once damage occurs on the surface of the optical disc, the integrity and readability of the optical disc data will be seriously affected. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an optical disc printer with a floating amount of the print head.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An optical disc printer, comprising side plates, fixing plates vertically fixed on the side plates, top plates perpendicular to the side plates and the fixing plates, and bottom plates perpendicular to the side plates and the fixing plates;

[0007] The top plate is fixedly connected to the upper end of the fixing plate;

[0008] The bottom plate is fixedly connected to the lower end of the fixing plate;

[0009] There is an optical disc printing channel on one side of the side plate and below the bottom plate;

[0010] A slide rail parallel to the side plate is arranged along the length direction of the fixing plate;

[0011] A lead screw is arranged between the slide rail and the side plate, one end of the lead screw is rotatably connected to the top plate, and the other end of the lead screw is rotatably connected to the bottom plate;

[0012] A first elastic member, a sliding pressure plate, and a lower connecting plate are sleeved on the lead screw;

[0013] The sliding pressure plate slides on the slide rail and moves as the lead screw rotates;

[0014] The lower connecting plate is connected with a print head;

[0015] The first elastic member is disposed between the sliding pressure plate and the lower connecting plate;

[0016] Rotation of the lead screw drives the sliding pressure plate to press down the lower connecting plate, so that the print head moves up and down relative to the optical disc printing channel.

[0017] For the optical disc printer as described above, a worm gear is fixedly connected to the lead screw;

[0018] A rotation driving member is fixedly connected to the side plate. The output end of the rotation driving member passes through the side plate, and a worm that meshes with the worm gear is fixedly connected to the output end of the rotation driving member.

[0019] For the optical disc printer as described above, a first relief hole for the lead screw to pass through is provided on the sliding pressure plate; a second relief hole for the lead screw to pass through is provided on the lower connecting plate;

[0020] A connecting block and an upper connecting plate are slidably provided on the slide rail;

[0021] A third relief hole for the lead screw to pass through is provided on the upper connecting plate;

[0022] The first relief hole, the second relief hole, and the third relief hole are coaxially arranged;

[0023] One end of the connecting block is fixedly connected to the upper connecting plate, and the other end of the connecting block is fixedly connected to the lower connecting plate;

[0024] The sliding pressure plate is disposed between the upper connecting plate and the lower connecting plate.

[0025] For the optical disc printer as described above, a first guide rod and a second guide rod are respectively connected between the upper connecting plate and the lower connecting plate and on both sides of the slide rail;

[0026] The sliding pressure plate can slide relative to the first guide rod and the second guide rod.

[0027] For the optical disc printer as described above, a thermal sensitive sheet is provided on the print head and faces the optical disc printing channel;

[0028] Along the length direction of the optical disc printing channel, a first carbon ribbon rolling roller and a second carbon ribbon rolling roller are respectively provided on both sides of the print head.

[0029] For the optical disc printer as described above, a material feeding roller is rotatably provided below the print head; the thermal sensitive sheet is inclined relative to the axis of the material feeding roller.

[0030] For the optical disc printer as described above, along the width direction of the optical disc printing channel, the slide rail is provided in the middle of the optical disc printing channel.

[0031] For the optical disc printer as described above, along the length direction of the optical disc printing channel, a carbon ribbon take-up roller is provided on one side of the print head, and a carbon ribbon unwind roller is provided on the other side of the print head;

[0032] A take-up driving structure for driving the carbon ribbon take-up roller to take up is provided on the side plate.

[0033] For the optical disc printer as described above, the take-up driving structure includes a take-up driving member, a driving wheel, a one-way driven wheel and a transmission belt;

[0034] The take-up driving member is provided on the side plate on one side of the optical disc printing channel, the output end of the take-up driving member passes through the side plate, and a driving wheel is provided at the end of the output end of the take-up driving member;

[0035] The end of the carbon ribbon take-up roller passes through the side plate and is rotatably provided on the side plate;

[0036] A one-way driven wheel is provided at the end of the carbon ribbon take-up roller;

[0037] A transmission belt is engaged with both the driving wheel and the one-way driven wheel;

[0038] The take-up driving member can drive the driving wheel to rotate, so as to drive the one-way driven wheel to rotate through the transmission belt, and make the carbon ribbon take-up roller rotate and take up around its own axis.

[0039] For the optical disc printer as described above, the carbon ribbon take-up roller includes a central shaft passing through the side plate and a connecting shaft coaxially arranged with the central shaft. The connecting shaft is arranged on the side of the central shaft away from the carbon ribbon take-up roller and is fixedly connected to the central shaft;

[0040] The diameter of the central shaft is larger than that of the connecting shaft;

[0041] The one-way driven wheel is arranged on the connecting shaft, and a friction member and a fixing member are arranged between the connecting shaft and the one-way driven wheel;

[0042] The fixing member is fixed relative to the connecting shaft and the central shaft; the friction member is arranged between the fixing member and the one-way driven wheel;

[0043] An adjusting nut is provided at one end of the connecting shaft away from the central shaft, and an external thread is provided on the connecting shaft for threaded cooperation with the adjusting nut;

[0044] A second elastic member is sleeved on the connecting shaft, and the second elastic member is located between the adjusting nut and the one-way driven wheel;

[0045] Rotate the adjusting nut to squeeze / relax the second elastic member, which can drive the one-way driven wheel to move towards the central axis / away from the central axis, squeeze / relax the friction member, so as to adjust the magnitude of the frictional force between the friction member and the fixing member and the one-way driven wheel.

[0046] The beneficial effects of the present utility model are as follows:

[0047] Since the sliding pressing plate is arranged above the lower connecting plate, when the lead screw rotates to drive the sliding pressing plate to slide on the slide rail, the sliding pressing plate moves downward, applying a force towards the lower connecting plate to the first elastic member; the first elastic member and the lower connecting plate move towards the optical disc printing channel at the same time; when the lower connecting plate moves to abut against the bottom plate, the lead screw continues to rotate, so that the sliding pressing plate and the lower connecting plate mutually squeeze the first elastic member, and at this time the first elastic member has a certain amount of expansion and contraction; when there is an optical disc in the optical disc printing channel, as the optical disc moves, after the optical disc contacts the print head, it applies an upward force to the print head, and the print head transfers the force to the lower connecting plate after being stressed, and the lower connecting plate applies an upward force to the first elastic member and squeezes the first elastic member, so that the print head has a floating amount, avoiding rigid contact between the print head and the optical disc and causing wear on the surface of the optical disc. Description of the Drawings

[0048] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0049] Figure 1 is one of the structural schematic diagrams of the optical disc printer of the present utility model;

[0050] Figure 2 is another structural schematic diagram of the optical disc printer of the present utility model;

[0051] Figure 3 is the structural schematic diagram of the carbon ribbon winding roller of the present utility model;

[0052] Figure 4 is the exploded view of the carbon ribbon winding roller of the present utility model;

[0053] Figure 5 is the third structural schematic diagram of the optical disc printer of the present utility model;

[0054] Figure 6 is the partial structural schematic diagram of the optical disc printer of the present utility model;

[0055] Figure 7 is the partial structural cross-sectional view of the optical disc printer of the present utility model;

[0056] The reference numerals are as follows:

[0057] 11 - Side plate; 12 - Optical disc printing channel; 121 - Feeding roller; 13 - Driving roller; 21 - Fixed plate; 22 - Top plate; 23 - Bottom plate; 31 - Slide rail; 32 - Lead screw; 321 - Lead screw nut; 33 - First elastic member; 34 - Sliding pressure plate; 341 - First relief hole; 35 - Worm gear; 36 - Rotating driving member; 37 - Worm; 38 - First guide rod; 39 - Second guide rod; 41 - Lower connecting plate; 411 - Second relief hole; 42 - Connecting block; 43 - Upper connecting plate; 431 - Third relief hole; 5 - Print head; 51 - Thermal sheet; 52 - First carbon ribbon straightening roller; 53 - Second carbon ribbon straightening roller; 61 - Carbon ribbon winding roller; 611 - Central shaft; 612 - Connecting shaft; 613 - Friction member; 614 - Adjusting nut; 615 - Second elastic member; 616 - Fixing member; 62 - Carbon ribbon unwinding roller; 71 - Winding driving member; 72 - Driving wheel; 73 - One - way driven wheel. Detailed implementation mode

[0058] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the present utility model can be combined interactively without conflict.

[0059] Refer to Figures 1-7 , an optical disc printer, characterized in that it includes a side plate 11, a fixed plate 21 vertically fixed on the side plate 11, a top plate 22 perpendicular to the side plate 11 and the fixed plate 21, and a bottom plate 23 perpendicular to the side plate 11 and the fixed plate 21;

[0060] The top plate 22 is fixedly connected to the upper end of the fixed plate 21;

[0061] The bottom plate 23 is fixedly connected to the lower end of the fixed plate 21;

[0062] There is an optical disc printing channel 12 on one side of the side plate 11 and below the bottom plate 23;

[0063] A slide rail 31 parallel to the side plate 11 is provided along the length direction of the fixed plate 21;

[0064] Specifically, along the width direction of the optical disc printing channel, the slide rail 31 is arranged in the middle of the optical disc printing channel;

[0065] A lead screw 32 is arranged between the slide rail 31 and the side plate 11. One end of the lead screw 32 is rotatably connected to the top plate 22, and the other end of the lead screw 32 is rotatably connected to the bottom plate 23;

[0066] A first elastic member 33, a sliding pressure plate 34 and a lower connecting plate 41 are sleeved on the lead screw 32; the first elastic member 33 can be a spring;

[0067] The sliding pressure plate 34 slides on the slide rail 31 and moves as the lead screw 32 rotates; specifically, a lead screw nut can be arranged in the sliding pressure plate 34, and the lead screw nut is fixedly connected to the sliding pressure plate 34 so that when the lead screw 32 rotates, the sliding pressure plate 34 moves along the axial direction of the lead screw 32; alternatively, one end of the sliding pressure plate 34 is fixedly connected with a lead screw nut 321 with a certain length, and the height of the lead screw nut 321 is greater than the height after the first elastic member 33 is completely compressed, so as to ensure that the first elastic member 33 always maintains a certain elasticity;

[0068] The lower connecting plate 41 is connected with a print head 5;

[0069] The first elastic member 33 is arranged between the sliding pressure plate 34 and the lower connecting plate 41;

[0070] The rotation of the lead screw 32 drives the sliding pressure plate 34 to press down the lower connecting plate 41, so that the print head 5 moves up and down relative to the optical disc printing channel 12.

[0071] Wherein, on the one hand, the function of the bottom plate 23 is to fix the lead screw 32, and on the other hand, it is to limit the lowest position of the lower connecting plate 41 and the print head 5;

[0072] The function of the slide rail 31 is to enable the sliding pressure plate 34, the lower connecting plate 41 and the print head 5 to move up and down smoothly;

[0073] Since the sliding pressure plate 34 is arranged above the lower connecting plate 41, when the height of the print head 5 needs to be adjusted, when the lead screw 32 rotates to drive the sliding pressure plate 34 to slide on the slide rail 31, the sliding pressure plate 34 exerts a force on the first elastic member 33 towards the lower connecting plate 41, so that the first elastic member 33 and the lower connecting plate 41 move towards the optical disc printing channel 12 at the same time;

[0074] When the lower connecting plate 41 moves to abut against the bottom plate 23, the lead screw 32 continues to rotate, so that the sliding pressure plate 34 and the lower connecting plate jointly press the first elastic member 33. At this time, the first elastic member has a certain amount of expansion and contraction;

[0075] The screw rod 32 stops rotating, and the height adjustment of the print head 5 is completed. When there is a disc in the disc printing channel 12, as the disc moves to the bottom of the print head 5, the disc applies a force to the print head 5 in the direction of the lower connecting plate 41. After the print head 5 is subjected to the force, the force is transmitted to the lower connecting plate 41. At this time, the sliding pressure plate 34 is fixed in position, and the lower connecting plate 41 applies an upward force to the first elastic member 33 to squeeze the first elastic member 33, so that the print head 5 has a floating amount to avoid rigid contact between the print head 5 and the disc, which causes wear on the disc surface.

[0076] Specifically, the optical disc printing channel 12 may be provided with a plurality of transmission rollers 13 for conveying the optical disc, and the transmission rollers 13 rotate to drive the optical disc to move on the optical disc printing channel 12, so as to deliver the optical disc to the bottom of the print head 5, so that the print head 5 can print a label or directly print information on the optical disc.

[0077] Furthermore, a worm gear 35 is fixedly connected to the screw rod 32;

[0078] A rotation driving member 36 is fixedly connected to the side plate 11 . An output end of the rotation driving member 36 is disposed through the side plate 11 . A worm 37 meshing with the worm wheel 35 is fixedly connected to the output end of the rotation driving member 36 .

[0079] Especially for CD printers that are desktop office products, the space on the desk is limited, and small CD printers take up less space and are more suitable for being placed on the desktop; compared with setting the rotating drive member 36 on the top plate 22, setting it on the side plate 11 can reduce the height of the CD printer; and when maintaining the CD printer, the maintenance personnel need to disassemble the shell of the CD printer and observe the printing status of the print head 5 and the movement of the CD on the CD printing channel 12 from the top of the CD printer. If the rotating drive member 36 is set on the top plate 22, it will block part of the maintenance personnel's line of sight, making it inconvenient for them to observe and repair the CD printer.

[0080] Further, one end of the connection block 42 is fixedly connected to the upper connection plate 43, and the other end of the connection block 42 is fixedly connected to the lower connection plate 41;

[0081] The sliding plate 34 is provided with a first clearance hole 341 for the screw rod 32 to pass through; the lower connecting plate 41 is provided with a second clearance hole 411 for the screw rod 32 to pass through;

[0082] A connecting block 42 and an upper connecting plate 43 are slidably disposed on the slide rail 31;

[0083] The upper connecting plate 43 is provided with a third clearance hole 431 for the screw rod 32 to pass through;

[0084] The first relief hole 341, the second relief hole 411, and the third relief hole 431 are coaxially arranged, which can make the lead screw 32 more stable during movement and reduce the vibration and swing of the print head 5 caused by the collision between the lead screw 32 and the upper connecting plate 43 and the lower connecting plate 41.

[0085] The sliding pressure plate 34 is arranged between the upper connecting plate 43 and the lower connecting plate 41.

[0086] Specifically, a first guide rod 38 and a second guide rod 39 are respectively connected between the upper connecting plate 43 and the lower connecting plate 41 and on both sides of the slide rail 31.

[0087] The sliding pressure plate 34 can slide relative to the first guide rod 38 and the second guide rod 39. The first guide rod 38 and the second guide rod 39 provide symmetrical support for the sliding pressure plate 34, which helps to maintain the balance of the sliding pressure plate 34 during movement.

[0088] Currently, inkjet printing technology is mainly used to print on the surface of the optical disc to form patterns and characters. In order to print patterns on the surface of the optical disc, a matte coating needs to be applied to the surface of the optical disc in advance, and then the patterns are printed on the coating by inkjet printing. The advantage of the matte coating is that it has several microscopic concave and convex patterns, which can control the flow of the ink, so as to print clear patterns. However, due to the lack of concave and convex patterns on the smooth surface of the optical disc, it does not have good ink adsorption, and the ink is easy to slide or flow, resulting in blurred printed patterns. Therefore, inkjet printing cannot directly print on the smooth surface of the optical disc.

[0089] Further, a thermal film 51 is provided on the print head 5 and is arranged facing the optical disc printing channel 12. During use, a carbon ribbon is provided between the thermal film 51 and the optical disc, and a clear coating can be printed on the smooth optical disc through thermal printing. And it can be put into use without waiting for the coating to dry, which is convenient and fast.

[0090] During the printing process, as the optical disc advances on the optical disc printing channel 12, if the supply direction of the carbon ribbon is offset, it may cause the carbon ribbon to be distorted at the print head 5, affecting the printing effect. Along the length direction of the optical disc printing channel 12, a first carbon ribbon straightening roller 52 and a second carbon ribbon straightening roller 53 are respectively arranged on both sides of the print head 5. The carbon ribbons at both ends of the print head 5 are respectively restricted between the front side of the print head 5 and the first carbon ribbon straightening roller 52, and between the rear side of the print head 5 and the first carbon ribbon straightening roller 52, so as to avoid the carbon ribbon at the print head 5 from being distorted.

[0091] Specifically, a feeding roller 121 is rotatably arranged below the print head 5. The thermal film 51 is inclined relative to the axis of the feeding roller 121, reducing the contact area between the thermal film 51 and the optical disc and optimizing the printing effect.

[0092] Specifically, along the length direction of the optical disc printing channel 12, a carbon ribbon winding roller 61 is provided on one side of the print head 5, and a carbon ribbon unwinding roller 62 is provided on the other side of the print head 5;

[0093] A winding driving structure for driving the carbon ribbon winding roller 61 to wind is provided on the side plate 11 to precisely control the tension of the carbon ribbon, control the contact pressure between the print head 5 and the carbon ribbon, and ensure the printing quality and clarity.

[0094] More specifically, the winding driving structure includes a winding driving member 71, a driving wheel 72, a one-way driven wheel 73, and a transmission belt;

[0095] The winding driving member 71 is provided on the side plate 11 on one side of the optical disc printing channel 12. The output end of the winding driving member 71 passes through the side plate 11, and a driving wheel 72 is provided at the end of the output end of the winding driving member 71;

[0096] The end of the carbon ribbon winding roller 61 passes through the side plate 11 and is rotatably provided on the side plate 11;

[0097] A one-way driven wheel 73 is provided at the end of the carbon ribbon winding roller 61;

[0098] A transmission belt is engaged with both the driving wheel 72 and the one-way driven wheel 73;

[0099] The winding driving member 71 can drive the driving wheel 72 to rotate, thereby driving the one-way driven wheel 73 to rotate through the transmission belt, so that the carbon ribbon winding roller 61 rotates and winds around its own axis.

[0100] The winding driving member 71 is provided on one side of the optical disc printing channel 12, which can reduce the floor area of the optical disc printer and reduce its volume.

[0101] Specifically, a one-way bearing is provided inside the one-way driven wheel 73. The inner diameter of the inner hole of the one-way bearing is larger than the diameter of the connecting shaft 612. The winding driving member 71 can only drive the carbon ribbon winding roller 61 to rotate with damping in the direction of tightening the carbon ribbon, and there is no damping characteristic in the opposite direction.

[0102] More specifically, the carbon ribbon winding roller 61 includes a central shaft 611 passing through the side plate 11 and a connecting shaft 612 coaxially arranged with the central shaft 611. The connecting shaft 612 is arranged on the side of the central shaft 611 away from the carbon ribbon winding roller 61 and is fixedly connected to the central shaft 611;

[0103] The diameter of the central shaft 611 is larger than the diameter of the connecting shaft 612;

[0104] The one-way driven wheel 73 is arranged on the connecting shaft 612, and a friction member 613 and a fixing member 616 are arranged between the connecting shaft 612 and the one-way driven wheel 73;

[0105] The fixing member 616 is fixed relative to the positions of the connecting shaft 612 and the central shaft 611; the friction member 613 is arranged between the fixing member 616 and the one-way driven wheel 73;

[0106] One end of the connecting shaft 612 away from the central shaft 611 is provided with an adjusting nut 614, and the connecting shaft 612 is provided with an external thread that is threadedly engaged with the adjusting nut 614;

[0107] A second elastic member 615 is sleeved on the connecting shaft 612, and the second elastic member 615 is located between the adjusting nut 614 and the one-way driven wheel 73;

[0108] The working principle of the structure of this embodiment is as follows:

[0109] When the adjusting nut 614 is rotated to squeeze (relax) the second elastic member 615, under the action of the elastic force of the second elastic member 615, the one-way driven wheel 73 moves toward (away from) the central shaft 611, so as to control the degree of fitting between the friction member 613 and the fixing member 611 and the one-way driven wheel 73, and control the magnitude of the friction force between the friction member 613 and the fixing member 611 and the one-way driven wheel 73. In this process, two motion situations will occur:

[0110] The first: When the friction force F1 generated by the friction member 613 on the fixing member 611 and the one-way driven wheel 73 is greater than or equal to the friction force F2 between the transmission belt and the one-way driven wheel 73, the winding driving member 71 drives the transmission belt to rotate, and the friction member 613, the fixing member 611 and the one-way driven wheel 73 rotate synchronously, driving the carbon tape winding roller 61 to rotate synchronously;

[0111] The second: When the friction force F1 generated by the friction member 613 on the fixing member 611 and the one-way driven wheel 73 is less than the friction force F2 between the transmission belt and the one-way driven wheel 73, the winding driving member 71 drives the transmission belt to rotate, and the one-way driven wheel 73 slips relative to the friction member 613 and the connecting shaft 612. The one-way driven wheel 73, the winding driving member 71 and the transmission belt can rotate normally, while the carbon tape winding roller 61 still remains in a relatively static state; this helps to maintain the tension of the carbon tape, and when the carbon tape is almost used up, it can prevent the carbon tape winding roller 61 from breaking the carbon tape.

[0112] Specifically, the inner circle of the fixing member 616 is a D-shaped hole, and the outer circle of the connecting shaft 612 has a shape that matches the fixing member 616, so the fixing member 616 can be fixed relative to the connecting shaft 612.

[0113] Specifically, the second elastic member 615 is a spring, and the friction member 613 is a wool felt.

[0114] The above is a specific description of the preferred embodiment of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A CD printer, characterized in that: It comprises a side plate (11), a fixing plate (21) fixed vertically to the side plate (11), a top plate (22) arranged vertically to the side plate (11) and the fixing plate (21), and a bottom plate (23) arranged vertically to the side plate (11) and the fixing plate (21); The top plate (22) is fixedly connected to the upper end of the fixing plate (21); The bottom plate (23) is fixedly connected to the lower end of the fixing plate (21); A disc printing channel (12) is provided on one side of the side plate (11) and below the bottom plate (23); A slide rail (31) parallel to the side plate (11) is provided along the length direction of the fixed plate (21); A screw rod (32) is provided between the slide rail (31) and the side plate (11), one end of the screw rod (32) is rotatably connected to the top plate (22), and the other end of the screw rod (32) is rotatably connected to the bottom plate (23); The screw rod (32) is sleeved with a first elastic member (33), a sliding pressure plate (34) and a lower connecting plate (41); The sliding pressure plate (34) slides on the slide rail (31) and moves along with the rotation of the screw rod (32); The lower connecting plate (41) is connected to a printing head (5); The first elastic member (33) is arranged between the sliding pressure plate (34) and the lower connecting plate (41); The screw rod (32) rotates to drive the sliding pressure plate (34) to press down the lower connecting plate (41), thereby causing the print head (5) to rise and fall relative to the optical disk printing channel (12).

2. The optical disk printer according to claim 1, wherein: The screw rod (32) is fixedly connected with a worm gear (35); A rotating drive member (36) is fixedly connected to the side plate (11), an output end of the rotating drive member (36) is arranged through the side plate (11), and a worm (37) meshing with the worm wheel (35) is fixedly connected to the output end of the rotating drive member (36).

3. The optical disk printer according to claim 1, wherein: The sliding pressure plate (34) is provided with a first clearance hole (341) for the screw rod (32) to pass through; the lower connecting plate (41) is provided with a second clearance hole (411) for the screw rod (32) to pass through; A connecting block (42) and an upper connecting plate (43) are slidably provided on the slide rail (31); The upper connecting plate (43) is provided with a third clearance hole (431) for the screw rod (32) to pass through; The first clearance hole (341), the second clearance hole (411) and the third clearance hole (431) are coaxially arranged; One end of the connection block (42) is fixedly connected to the upper connection plate (43), and the other end of the connection block (42) is fixedly connected to the lower connection plate (41); The sliding pressure plate (34) is arranged between the upper connecting plate (43) and the lower connecting plate (41).

4. The optical disk printer according to claim 3, wherein: A first guide rod (38) and a second guide rod (39) are respectively connected between the upper connecting plate (43) and the lower connecting plate (41) and located on both sides of the slide rail (31); The sliding pressure plate (34) can slide relative to the first guide rod (38) and the second guide rod (39).

5. The optical disk printer according to claim 1, wherein: The print head (5) is provided with a thermal sheet (51) disposed toward the optical disk printing channel (12); Along the length direction of the optical disc printing channel (12), a first carbon ribbon roller (52) and a second carbon ribbon roller (53) are respectively provided on both sides of the printing head (5).

6. The optical disk printer according to claim 5, characterized in that: A feeding roller (121) is rotatably provided below the printing head (5); the thermal film (51) is arranged to be inclined relative to the axis of the feeding roller (121).

7. The optical disk printer according to claim 1, wherein: A screw nut (321) is fixed to one side of the sliding pressure plate (34), and the height of the screw nut (321) is greater than the height of the first elastic member (33) after being fully squeezed.

8. The optical disk printer according to claim 1 or 5, characterized in that: Along the length direction of the optical disc printing channel (12), a carbon ribbon winding roller (61) is provided on one side of the printing head (5), and a carbon ribbon unwinding roller (62) is provided on the other side of the printing head (5); The side plate (11) is provided with a winding drive structure for driving the carbon ribbon winding roller (61) to wind up.

9. The optical disk printer according to claim 8, characterized in that: The winding drive structure comprises a winding drive member (71), a driving wheel (72), a one-way driven wheel (73) and a transmission belt; The winding drive member (71) is arranged on the side plate (11) at one side of the optical disc printing channel (12), the output end of the winding drive member (71) passes through the side plate (11), and a driving wheel (72) is arranged at the end of the output end of the winding drive member (71); The end of the carbon ribbon winding roller (61) is disposed through the side plate (11) and is rotatably disposed on the side plate (11); A one-way driven wheel (73) is provided at the end of the carbon ribbon winding roller (61); The driving wheel (72) and the one-way driven wheel (73) are both meshed with a transmission belt; The winding drive member (71) can drive the driving wheel (72) to rotate, thereby driving the one-way driven wheel (73) to rotate through the transmission belt, so that the carbon ribbon winding roller (61) rotates from its axis to rewind.

10. The optical disk printer according to claim 9, characterized in that: The carbon ribbon winding roller (61) comprises a central axis (611) disposed through the side plate (11) and a connecting axis (612) disposed coaxially with the central axis (611); the connecting axis (612) is disposed on a side of the central axis (611) away from the carbon ribbon winding roller (61) and is fixedly connected to the central axis (611); The diameter of the central shaft (611) is greater than the diameter of the connecting shaft (612); The one-way driven wheel (73) is arranged on the connecting shaft (612), and a friction member (613) and a fixing member (616) are arranged between the central shaft (611) and the one-way driven wheel (73); The fixing member (616) is fixed relative to the connecting shaft (612) and the central shaft (611); the friction member (613) is arranged between the fixing member (616) and the one-way driven wheel (73); An adjusting nut (614) is provided at one end of the connecting shaft (612) away from the central shaft (611), and an external thread that matches the thread of the adjusting nut (614) is provided on the connecting shaft (612); The connecting shaft (612) is sleeved with a second elastic member (615), and the second elastic member (615) is located between the adjusting nut (614) and the one-way driven wheel (73); By rotating the adjusting nut (614) to squeeze / relax the second elastic member (615), the one-way driven wheel (73) can be driven to move toward / away from the central axis (611) and squeeze / relax the friction member (613), thereby adjusting the friction force between the friction member (613) and the fixing member (616) and the one-way driven wheel (73).

Images