Printer

Abstract

The printer comprises a host, a cover plate and a first pressing block, a printing groove allowing a to-be-printed piece to pass through is formed in the host, the printing groove is provided with an inlet end and an outlet end, the cover plate is rotationally connected with the host, the cover plate has an unfolding state and a covering state, and when the cover plate is in the covering state, the cover plate covers the host; a cover plate is provided with a limiting part, a first pressing block is provided with a first end and a second end, the first end is rotationally connected with the cover plate, the second end is used for abutting against a to-be-printed piece when the cover plate is in a closed state, and when the first pressing block is in a first position, the cover plate abuts against the second end to limit the second end to rotate towards the cover plate; and therefore, the breaking probability of the first pressing block is reduced.

Description

Technical Field

[0001] This application relates to the field of printing technology, and more particularly to a printer. Background Technology

[0002] In related technologies, printers need to press down on the object to be printed when printing to achieve better printing results. However, due to accidental touches by some users, the pressure block that presses down on the object is prone to breakage. Utility Model Content

[0003] This application provides a printer that solves the technical problem that the pressure block used to press the object to be printed is prone to breakage.

[0004] This application provides a printer, including:

[0005] The host has a printing slot for the passage of the work to be printed, the printing slot having an inlet end and an outlet end;

[0006] A cover plate, rotatably connected to the main unit, has an unfolded state and a closed state. When the cover plate is in the closed state, it covers the main unit, and a limiting portion is provided on the side of the cover plate facing the main unit; and

[0007] The first pressure block has a first end and a second end, the first end being rotatably connected to the cover plate, and the second end being used to abut the workpiece to be printed when the cover plate is in the closed state.

[0008] The first pressing block has a first position. When the first pressing block is in the first position, the limiting part abuts against the first pressing block to restrict the first pressing block from rotating toward the cover plate.

[0009] In some embodiments, the limiting portion is formed on the inner side of the cover plate.

[0010] In some embodiments, a limiting groove is formed on the inner side of the cover plate, and when the cover plate abuts against the first pressure block, at least a portion of the second end is received in the limiting groove.

[0011] In some embodiments, when the first pressing block is in the first position, the cover plate has a first projection on the host along the thickness direction of the cover plate, and the first pressing block has a second projection on the host plate, the second projection being located within the outer contour of the first projection.

[0012] In some embodiments, the cover plate includes:

[0013] The upper cover, which is rotatably connected to the main unit; and

[0014] A middle cover, which is rotatably connected to the main unit and is located between the main unit and the upper cover;

[0015] The first pressing block and the limiting part are both located on the side of the middle cover away from the upper cover.

[0016] In some embodiments, when the cover is in the unfolded state, the second end is able to swing relative to the cover to move closer to and further away from the inlet end, and when the cover is in the closed state, the first end is located on the side of the second end closer to the inlet end.

[0017] In some embodiments, the first end has an abutment block, the first pressing block has a second position, and when the first pressing block is in the second position, the abutment block abuts against the cover plate to restrict the first pressing block from rotating toward the printing groove, and the first pressing block is set at an angle to the cover plate.

[0018] In some embodiments, the first end is rotatably connected to the cover plate via a rotating shaft, on which a torsion spring is sleeved. The first free end of the torsion spring is connected to the cover plate, and the second free end of the torsion spring is connected to the first pressure block. Under the action of the elastic force of the torsion spring, the first end has a tendency to move away from the cover plate.

[0019] In some embodiments, when the cover is in the closed state, the first end is located on the side of the second end away from the inlet end.

[0020] In some embodiments, a limiting block is provided on the inner side of the cover plate. When the cover plate is in the closed state, the limiting block abuts against the first pressing block to restrict the first pressing block from rotating toward the printing groove.

[0021] In some embodiments, when the cover plate is in the closed state, the vertical height of the end of the limiting block away from the cover plate is higher than the vertical height of the second end, and the height difference between the two is H, where H satisfies 0≤H≤5mm.

[0022] In some embodiments, the first pressing block includes a first body and a first rolling part. The two ends of the first body are respectively formed as a first end and a second end. The first rolling part is rotatably connected to the second end. When the cover plate is in the closed state, the first rolling part is used to press against the workpiece to be printed.

[0023] In some embodiments, the first rolling portion is made of an elastic material.

[0024] In some embodiments, the printer further includes a second pressure block, which is spaced apart from the first pressure block, and the second pressure block is used to press against the workpiece to be printed when the cover is in the closed state.

[0025] In some embodiments, the second pressing block includes a second body and a second rolling part, the second rolling part being rotatably connected to the second body, and when the cover is in the closed state, the second rolling part is used to press against the workpiece to be printed.

[0026] The printer based on the embodiments of this application includes a host, a cover plate, and a first pressure block. The cover plate has a limiting part, and the first pressure block has a first end and a second end. The first end is rotatably connected to the cover plate, and the second end is used to hold the workpiece to be printed when the cover plate is in the closed state. When the first pressure block is in the first position, the cover plate abuts against the second end to restrict the second end from rotating toward the cover plate, thereby reducing the probability of the first pressure block breaking. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the printer structure provided in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the printer from another perspective, provided in an embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the cover provided in an embodiment of this application;

[0031] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A;

[0032] Figure 5 This is a structural schematic diagram of the cover from another perspective provided in an embodiment of this application;

[0033] Figure 6 This is an exploded structural diagram of the cover provided in an embodiment of this application.

[0034] Figure reference numerals:

[0035] 100, Main unit; 100a, Printing slot; 100b, Inlet end; 100c, Outlet end;

[0036] 200, cover plate; 201, limiting part; 200a, limiting groove; 210, upper cover; 220, middle cover;

[0037] 300, First pressure block; 301, First end; 301a, Abutment block; 302, Second end; 303, Torsion spring; 310, First body; 320, First rolling part;

[0038] 400. Second pressing block; 410. Second body; 420. Second rolling part. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0040] In existing technology, printers need to press down on the object to be printed when printing to achieve better printing results. However, the pressure block that presses down on the object can easily break due to accidental touches by some users.

[0041] Accidental touch can specifically refer to the user bending the pressure block away from the part to be printed, which could cause the pressure block to break.

[0042] The object to be printed (also known as the printable part) can refer to objects such as wire tubes, leather, metal plates or plastic plates, which need to have labels or patterns printed on their surfaces. In this embodiment of the application, the printable part is exemplarily described using wire tubes.

[0043] To resolve the above issues, please refer to [link / reference]. Figure 1-3 This application provides a printed component, including a host 100, a cover plate 200, and a first pressing block 300.

[0044] The main unit 100 is the core component of the printer, containing key components such as the print head, ink / toner cartridge, and transmission system. Upon receiving a print command, the print head ejects ink or toner onto the printable material according to a preset pattern or text information, completing the printing task. The main unit 100 has a printing slot 100a for the printable material to pass through. The printing slot 100a has an inlet end 100b and an outlet end 100c, used for inputting and outputting the printable material, respectively. Through an internal transmission system (such as rollers or belts), the printable material can be automatically fed in from the inlet end 100b and ejected from the outlet end 100c after printing.

[0045] The cover plate 200 is rotatably connected to the host 100. The cover plate 200 has an unfolded state and a closed state. When the cover plate 200 is in the closed state, it covers the host 100 and can effectively protect the key components such as the print head and transmission system in the printing area, preventing damage from external factors such as dust and moisture. When the cover plate 200 is in the unfolded state, it is convenient for users to observe the working status of the host 100 and perform maintenance work such as replacing ink cartridges / toner cartridges.

[0046] The first pressure block 300 has a first end 301 and a second end 302. The first end 301 is rotatably connected to the cover plate 200, and the second end 302 is used to hold the workpiece to be printed when the cover plate 200 is in the closed state, so as to keep it flat and prevent it from moving during printing. Through the action of the first pressure block 300, the relative position between the print head and the workpiece to be printed can be kept stable, thereby improving the print quality.

[0047] The cover plate 200 has a limiting part 201, and the first pressing block 300 has a first position on the rotation trajectory. When the first pressing block 300 rotates to the first position, the limiting part 201 abuts against the first pressing block 300, and the limiting part 201 restricts the first pressing block 300 from rotating toward the cover plate 200. In this way, it is difficult for the user to continue to rotate toward the cover plate 200 under the restriction of the limiting part 201, and it is also difficult to break the first pressing block 300, thereby reducing the probability of the first pressing block 300 breaking.

[0048] Please see Figure 3-4 In one embodiment, a limiting portion 201 is formed on the inner side of the cover plate 200, which can maximize the use of the printer's internal space, avoid additional external structures or components, and make the overall structure of the printer more compact.

[0049] A limiting part 201 is formed on the inner side of the cover plate 200. There is no need to install the limiting part 201 separately. It is only necessary to ensure the correct alignment and connection between the cover plate 200 and the main unit 100, which simplifies the assembly process. The cover plate 200 has a limiting effect on the first pressure block 300, thereby reducing the probability of the first pressure block 300 breaking.

[0050] Furthermore, a limiting groove 200a is provided on the inner side of the cover plate 200. When the cover plate 200 abuts against the first pressing block 300, the second end 302 can be partially contained in the limiting groove 200a, or the second end 302 can be completely contained in the limiting groove 200a. In this way, the second end 302 can abut against the cover plate 200, making it difficult to continue to pry the first pressing block 300 towards the cover plate 200, thus reducing the risk of manually breaking the first pressing block 300.

[0051] The limiting groove 200a can be formed by the cover plate 200 and the ribs on the inner side of the cover plate 200. The inner side of the cover plate 200 forms the bottom of the limiting groove 200a. The ribs and the cover plate 200 can be integrally formed, thereby increasing the structural strength of the entire cover plate 200.

[0052] In another embodiment, when the first pressing block 300 is in the first position, the cover plate 200 has a first projection on the host 100 along the thickness direction of the cover plate 200, and the first pressing block 300 has a second projection on the host 100, the second projection being located within the outer contour of the first projection.

[0053] That is, when the first pressing block 300 rotates to the first position during its rotation trajectory, the second end 302 of the first pressing block 300 will abut against the cover plate 200. In other words, the first pressing block 300 is unlikely to contact the edge of the cover plate 200, making it difficult to achieve stress concentration, thereby further reducing the probability of the first pressing block 300 being broken by human intervention.

[0054] It is understandable that, since the first end 301 of the first pressure block 300 is rotatably connected to the cover plate 200, when the cover plate 200 is in the unfolded state, the second end 302 can swing relative to the cover plate 200. By manually swinging the first pressure block 300, the second end 302 can be moved closer to or further away from the inlet end 100b.

[0055] In this embodiment of the application, the second end 302 of the first pressing block 300 is defined to have a first side and a second side facing away from each other. Since the first end 301 of the first pressing block 300 is rotatably connected to the cover plate 200, when the first pressing block 300 is in the first position, the second end 302 can rotate to the first side to abut against the cover plate 200, or the second end 302 can rotate in the opposite direction to the second side to abut against the cover plate 200.

[0056] When the first side of the second end 302 abuts against the cover plate 200, the first end 301 is located on the side of the second end 302 closer to the inlet end 100b. When the workpiece to be printed is a wire tube, the wire tube enters from the inlet end 100b and exits from the outlet end 100c under the action of the conveying component. Therefore, in order to reduce the friction between the second end 302 and the wire tube, when the cover plate 200 is in the closed state, the first end 301 is located on the side of the second end 302 closer to the inlet end 100b. That is, during the movement of the wire tube, under the action of friction, the second end 302 rotates towards the cover plate 200 under the pushing action of the wire tube, and will not further squeeze the wire tube, thus ensuring the smooth flow of the wire tube.

[0057] Based on the previous embodiment, please refer to Figure 5The first end 301 has an abutment block 301a, and the first pressing block 300 has a second position. When the first pressing block 300 is in the second position, the abutment block 301a abuts against the cover plate 200 to restrict the first pressing block 300 from rotating toward the printing groove 100a, and the first pressing block 300 and the cover plate 200 are set at an angle.

[0058] When the first pressure block 300 and the cover plate 200 are set at an angle, regardless of whether the cover plate 200 is in the unfolded or closed state, the first end 301 of the first pressure block 300 is always located on the side of the second end 302 closer to the inlet end 100b. In this way, when the cover plate 200 rotates from the unfolded state to the closed state, there is no need to manually swing the first pressure block 300. This ensures that when the cover plate 200 is in the closed state, the first end 301 is located on the side of the second end 302 closer to the inlet end 100b, thereby ensuring the smooth flow of the wire pipe.

[0059] In the above embodiments, the pressure exerted by the first pressure block 300 on the wire tube is mainly achieved by its own weight. To further improve the pressure exerted by the first pressure block 300 on the wire tube, please refer to an embodiment of this application. Figure 6 The first end 301 is rotatably connected to the cover plate 200 via a rotating shaft. A torsion spring 303 is sleeved on the rotating shaft. The first free end of the torsion spring 303 is connected to the cover plate 200, and the second free end of the torsion spring 303 is connected to the first pressure block 300. Under the action of the elastic force of the torsion spring 303, the first end 301 has a tendency to move away from the cover plate 200.

[0060] Under the elastic force of the torsion spring 303, the first pressure block 300 is driven to press against the wire marking tube. Under the elastic force of the torsion spring 303 and combined with the weight of the first pressure block 300, the wire marking tube can be pressed more stably, ensuring the accuracy of the wire marking tube printing.

[0061] In another embodiment, when the first pressure block 300 is in the first position, the second side of the second end 302 abuts against the cover plate 200. In this embodiment, the first end 301 is located on the side of the second end 302 away from the inlet end 100b, so that the first pressure block 300 can also press against the wire tube under its own weight.

[0062] It should be understood that, since the wire marking tube enters from the inlet end 100b and exits from the outlet end 100c under the action of the conveying component, when the cover plate 200 is in the closed state, the friction of the wire marking tube will drive the second end 302 to move towards the outlet end 100c. During this stage, since the cover plate 200 is in the closed state, the second end 302 will squeeze the wire marking tube, which may easily cause the first pressure block 300 to break or affect the smoothness of the wire marking tube.

[0063] Therefore, in this embodiment of the application, a limiting block (not shown in the figure) is provided on the inner side of the cover plate 200. When the cover plate 200 is in the closed state, the limiting block abuts against the first pressing block 300 to restrict the first pressing block 300 from rotating toward the printing groove 100a.

[0064] Thus, under the action of friction, the first pressing block 300 will come into contact with the limiting block, and the limiting block will restrict the first pressing block 300 from rotating toward the printing groove 100a, that is, restrict the second end 302 from moving toward the outlet end 100c, thereby reducing the probability of the first pressing block 300 breaking and not affecting the smoothness of the wire tube.

[0065] During the movement of the wire tube, a continuous frictional force is applied to the first pressing block 300. If the frictional force is too great, when the first pressing block 300 moves to its limit position, that is, when the first pressing block 300 contacts the limiting block, the first pressing block 300 may still be broken if the limiting block is too short.

[0066] Therefore, in one embodiment of this application, when the cover plate 200 is in the closed state, the height of the end of the limiting block away from the cover plate 200 in the vertical direction is higher than the height of the second end 302 in the vertical direction, and the height difference between the two is H, where H satisfies 0≤H≤5mm, and H can be a range of 0mm, 1mm, 2mm, 3mm, 4mm, 5mm or any two of them.

[0067] The first pressing block 300 and the limiting block form a lever structure. The connection between the first pressing block 300 and the end of the limiting block away from the cover plate 200 forms a rotation point. When the height difference H between the two is within the above range, the length of the limiting block is sufficient, that is, the length of the first pressing block 300 protruding from the limiting block is short, that is, the torque is short. Therefore, the first pressing block 300 is difficult to break when subjected to friction.

[0068] Since the second end 302 of the first pressure block 300 presses against the wire tube when the cover plate 200 is closed, friction will be generated between the first pressure block 300 and the wire tube. The further friction may affect the smoothness of the wire tube.

[0069] Therefore, in one embodiment of this application, please refer to Figure 4 The first pressing block 300 includes a first body 310 and a first rolling part 320. The two ends of the first body 310 are respectively formed as a first end 301 and a second end 302. The first rolling part 320 is rotatably connected to the second end 302. When the cover plate 200 is in the closed state, the first rolling part 320 is used to hold the workpiece to be printed.

[0070] The axis of the first rolling part 320 is parallel to the axis of the shaft connecting the first end 301 and the cover plate 200. Therefore, the contact between the first rolling part 320 and the wire tube is rolling contact. Rolling contact means that there is less rolling friction. Therefore, the wear on the wire tube can be reduced by the first rolling part 320, and the smoothness of the wire tube can also be improved.

[0071] Furthermore, the first rolling part 320 is made of an elastic material, such as rubber, silicone, or polyurethane. By using an elastic material for the first rolling part 320, it can better adapt to the unevenness of the wire tube surface and ensure that the pressure is evenly distributed across the entire contact surface through slight deformation, thereby reducing printing quality problems caused by excessive local pressure.

[0072] In addition, elastic materials have good shock absorption properties, which can absorb and disperse the vibrations and noise generated during the printing process, reducing interference with the surrounding environment.

[0073] In one embodiment, please continue to refer to Figure 4 The printer also includes a second pressure block 400, which is spaced apart from the first pressure block 300. When the cover plate 200 is closed, the second pressure block 400 is used to press against the workpiece to be printed.

[0074] When the cover plate 200 is in the closed state, the first pressing block 300 presses against the wire tube. Under the action of the pressing force, the position in contact with the first pressing block 300 will sink, and the adjacent position may lift up. Therefore, by setting the second pressing block 400, it can press against the wire tube at intervals with the first pressing block 300 when the cover plate 200 is in the closed state, which plays an auxiliary pressing role and ensures that the wire tube moves in the printing slot 100a according to the preset trajectory.

[0075] There can be one or two second pressure blocks 400. When there is only one, the second pressure block 400 can be located on the side of the first pressure block 300 facing the inlet end 100b or on the side of the first pressure block 300 facing the outlet end 100c. The specific location can be set according to the position of the wire tube.

[0076] There are two second pressure blocks 400. The two second pressure blocks 400 can be located on the side of the first pressure block 300 facing the inlet end 100b and the side of the first pressure block 300 facing the outlet end 100c, respectively. In this way, the wire tube can be effectively pressed down to facilitate the wire tube's passage.

[0077] Furthermore, please continue reading Figure 4The second pressing block 400 includes a second body 410 and a second rolling part 420. The second rolling part 420 is rotatably connected to the second body 410. When the cover plate 200 is in the closed state, the second rolling part 420 is used to press against the workpiece to be printed.

[0078] The axis of the second rolling part 420 is parallel to the axis of the shaft connecting the first end 301 and the cover plate 200. That is, the axis of the second rolling part 420 is parallel to the axis of the first rolling part 320. Therefore, the contact between the second rolling part 420 and the wire tube is also a rolling contact. Rolling contact means that there is less rolling friction. Therefore, the wear on the wire tube can be reduced by the second rolling part 420, and the smoothness of the wire tube can also be improved.

[0079] The material of the second rolling part 420 can be the same as that of the first rolling part 320, namely, an elastic material, specifically rubber, silicone, polyurethane, etc. This material can better adapt to the unevenness of the wire tube surface and ensure that the pressure is evenly distributed across the entire contact surface through slight deformation, thereby reducing printing quality problems caused by excessive local pressure. In addition, the elastic material has good shock absorption performance, which can absorb and disperse the vibration and noise generated during the printing process, reducing interference with the surrounding environment.

[0080] In one embodiment of this application, please return and refer to Figure 1-2 The cover plate 200 includes an upper cover 210 and a middle cover 220.

[0081] The top cover 210 is located outside the main unit 100 and is connected to the main unit 100 by a rotatable connection. The main function of the top cover 210 is to protect the delicate internal components of the printer from dust, paper scraps and other debris, and at the same time, as an external component of the printer, it provides a clean and safe appearance.

[0082] The middle cover 220 is located inside the upper cover 210, and its rotation range is smaller than that of the upper cover 210. The middle cover 220 also has a closed state. When both the middle cover 220 and the upper cover 210 are in the closed state, the projection of the middle cover 220 on the upper surface of the printer falls into the projection of the upper cover 210 on the upper surface of the printer in the vertical direction. Therefore, in this embodiment, the first pressing block 300 and the limiting part 201 are both provided on the side of the middle cover 220 away from the upper cover 210. In this way, the first pressing block 300 can be more easily inserted into the printing slot 100a to press the limit tube.

[0083] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0084] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printer, characterized in that, include: The host has a printing slot for the passage of the work to be printed, the printing slot having an inlet end and an outlet end; A cover plate, rotatably connected to the main unit, has an unfolded state and a closed state. When the cover plate is in the closed state, it closes onto the main unit. The cover plate has a limiting part. The first pressure block has a first end and a second end, the first end being rotatably connected to the cover plate, and the second end being used to abut the workpiece to be printed when the cover plate is in the closed state. The first pressing block has a first position. When the first pressing block is in the first position, the limiting part abuts against the first pressing block to restrict the first pressing block from rotating toward the cover plate.

2. The printer according to claim 1, characterized in that, The limiting portion is formed on the inner side of the cover plate.

3. The printer according to claim 2, characterized in that, A limiting groove is formed on the inner side of the cover plate, and when the cover plate abuts against the first pressure block, at least a portion of the second end is received in the limiting groove.

4. The printer according to claim 2, characterized in that, When the first pressing block is in the first position, the cover plate has a first projection on the host along the thickness direction of the cover plate, and the first pressing block has a second projection on the host, with the second projection located within the outer contour of the first projection.

5. The printer according to claim 1, characterized in that, The cover plate includes: The upper cover, which is rotatably connected to the main unit; and A middle cover, which is rotatably connected to the main unit and is located inside the upper cover; The first pressing block and the limiting part are both located on the side of the middle cover away from the upper cover.

6. The printer according to claim 1, characterized in that, When the cover is in the unfolded state, the second end can swing relative to the cover to move closer to and further away from the inlet end, and when the cover is in the closed state, the first end is located on the side of the second end closer to the inlet end.

7. The printer according to claim 6, characterized in that, The first end has an abutment block, and the first pressing block has a second position. When the first pressing block is in the second position, the abutment block abuts against the cover plate to restrict the first pressing block from rotating toward the printing groove, and the first pressing block and the cover plate are set at an angle.

8. The printer according to claim 6, characterized in that, The first end is rotatably connected to the cover plate via a rotating shaft. A torsion spring is sleeved on the rotating shaft. The first free end of the torsion spring is connected to the cover plate, and the second free end of the torsion spring is connected to the first pressure block. Under the action of the elastic force of the torsion spring, the first end has a tendency to move away from the cover plate.

9. The printer according to claim 1, characterized in that, When the cover is in the closed state, the first end is located on the side of the second end away from the inlet end.

10. The printer according to claim 9, characterized in that, The cover plate is provided with a limiting block on its inner side. When the cover plate is in the closed state, the limiting block abuts against the first pressing block to restrict the first pressing block from rotating toward the printing groove.

11. The printer according to claim 10, characterized in that, When the cover plate is in the closed state, the vertical height of the end of the limiting block away from the cover plate is higher than the vertical height of the second end, and the height difference between the two is H, where H satisfies 0≤H≤5mm.

12. The printer according to claim 1, characterized in that, The first pressing block includes a first body and a first rolling part. The two ends of the first body are respectively formed as a first end and a second end. The first rolling part is rotatably connected to the second end. When the cover plate is in the closed state, the first rolling part is used to press against the workpiece to be printed.

13. The printer according to claim 12, characterized in that, The material of the first rolling part includes an elastic material.

14. The printer according to claim 1, characterized in that, The printer further includes a second pressure block, which is spaced apart from the first pressure block. When the cover is in the closed state, the second pressure block is used to press against the workpiece to be printed.

15. The printer according to claim 14, characterized in that, The second pressing block includes a second body and a second rolling part. The second rolling part is rotatably connected to the second body. When the cover plate is in the closed state, the second rolling part is used to press against the workpiece to be printed.

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