Printer

Abstract

The utility model discloses a printer which comprises a host, a cover plate and a first pressing block, the first pressing block is provided with a first end part and a second end part, the first end part is rotationally connected with the cover plate, the second end part is used for abutting against a to-be-printed piece when the cover plate is in a covering state, and the to-be-printed piece is pressed against the to-be-printed piece when the cover plate is in the covering state. The first end is located on the side, close to the inlet end, of the second end, so that under the action of friction force, the second end rotates in the direction close to the cover plate, the friction force between the to-be-printed piece and the first pressing block can be reduced, and the smoothness of the to-be-printed piece passing through the printing groove is improved.

Description

Technical Field

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

[0002] In related technologies, printers need to press against the printable parts when printing to achieve better printing results. However, pressing against the printable parts increases the friction of their movement, thus affecting the smoothness of their movement. Utility Model Content

[0003] This application provides a printer that solves the problem that when the object to be printed is pressed against the printer, the friction of the object increases, thereby affecting the smoothness of the printed object's movement.

[0004] In a first aspect, embodiments of this application provide 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 closes onto the main unit.

[0007] The first pressure block has a first end and a second end. The first end is rotatably connected to the cover plate. The second end is used to press against the workpiece to be printed when the cover plate is in the closed state. When the cover plate is in the unfolded state, the second end can swing relative to the cover plate to move closer to and away from the inlet end.

[0008] 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.

[0009] 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.

[0010] In some embodiments, the first rolling portion is made of an elastic material.

[0011] In some embodiments, the first end has an abutment block that abuts against the cover plate when the cover plate is in the unfolded state, and the first pressing block is set at an angle to the cover plate to restrict the first pressing block from rotating toward the printing groove.

[0012] In some embodiments, the first end is rotatably connected to the cover plate via a first rotating shaft, a first torsion spring is sleeved on the first rotating shaft, the first free end of the first torsion spring is connected to the cover plate, and the second free end of the first torsion spring is connected to the first pressure block. Under the action of the elastic force of the first torsion spring, the first end has a tendency to move away from the cover plate.

[0013] In some embodiments, the cover plate includes:

[0014] The upper cover, which is rotatably connected to the main unit; and

[0015] A middle cover, which is rotatably connected to the main unit and is located between the main unit and the upper cover;

[0016] The first pressure block is located on the side of the middle cover opposite to the upper cover.

[0017] In some embodiments, the middle cover includes:

[0018] The cover is rotatably connected to the main unit; and

[0019] A vertical plate protrudes from the inner side of the cover body. Two oppositely arranged mounting holes are formed on the vertical plate. The two mounting holes have openings at their opposite ends. The two ends of the first rotating shaft are respectively inserted into the two mounting holes through the openings.

[0020] The upright plate has a guide opening at one end away from the cover, which extends to the opening of the mounting hole. The guide opening has two sidewalls arranged along the length of the first rotating shaft, and the distance between the two sidewalls gradually decreases as they approach the cover.

[0021] In some embodiments, the middle cover is rotatably connected to the main unit via a second rotating shaft. A second torsion spring is sleeved on the second rotating shaft. The first free end of the second torsion spring is connected to the main unit, and the second free end of the second torsion spring is connected to the middle cover. Under the elastic force of the second torsion spring, the middle cover has a tendency to move closer to the upper cover.

[0022] In some embodiments, the printer further includes a tube insertion detection device disposed within the printing slot and used to detect whether the workpiece to be printed has passed through the printing slot.

[0023] In some embodiments, the inlet detection device includes at least one of a pressure sensor, a photoelectric sensor, and a microwave sensor.

[0024] In some embodiments, the inlet detection device includes:

[0025] A rotating block, rotatably connected to the main unit; and

[0026] An elastic element, one end of which is connected to the rotating block, and the other end of which is connected to the main unit;

[0027] The rotating block is at least partially disposed within the printing slot, and the rotating block is able to rotate relative to the host when the workpiece to be printed passes through the inlet detection device.

[0028] In some embodiments, in the closed state, the distance between the second end and the rotating block along the extension direction of the printing groove is H, wherein H satisfies 0mm < H ≤ 20mm.

[0029] In some embodiments, the rotating block has a guide surface that smoothly transitions and is positioned toward the inlet end.

[0030] In some embodiments, the printer further includes a second pressure block disposed on the inner side of the cover plate and spaced apart from the first pressure block. When the cover plate is in the closed state, the second pressure block is used to press against the workpiece to be printed.

[0031] 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.

[0032] The printer based on the embodiments of this application includes a host, a cover plate, and a first pressure block. 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 press against the workpiece to be printed when the cover plate is in the closed state. When the cover plate is in the closed state, the first end is located on the side of the second end closer to the inlet end. Thus, under the action of friction, the second end rotates towards the cover plate, thereby reducing the friction between the workpiece to be printed and the first pressure block and improving the smoothness of the workpiece passing through the printing slot. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the printer structure provided in an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the printer from another perspective, provided in an embodiment of this application.

[0036] Figure 3 This is a schematic diagram of the structure of the cover provided in an embodiment of this application;

[0037] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A;

[0038] Figure 5 This is an exploded structural diagram of the middle cover provided in an embodiment of this application;

[0039] Figure 6 This is a partial structural diagram of the host provided in an embodiment of this application.

[0040] Figure reference numerals:

[0041] 100, Main unit; 100a, Printing slot; 100b, Inlet end; 100c, Outlet end;

[0042] 200. Cover plate; 210. Top cover; 220. Middle cover; 221. Cover body; 222. Vertical plate; 222a. Mounting hole; 222b. Guide port;

[0043] 300, First pressing block; 301, First end; 301a, Abutting block; 302, Second end; 303, First rotating shaft; 304, First torsion spring; 310, First body; 320, First rolling part;

[0044] 400. Inlet pipe detection device; 410. Photoelectric sensor; 420. Rotating block; 420a. Guide surface; 430. Elastic element;

[0045] 500, Second pressing block; 510, Second body; 520, Second rolling part. Detailed Implementation

[0046] 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.

[0047] In existing technology, printers need to press against the printable part when printing to achieve better printing results. However, pressing against the printable part increases the friction of its movement, thus affecting the smoothness of its movement.

[0048] 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, wire tubes are used as the object to be printed for illustrative purposes.

[0049] To resolve the above technical issues, please refer to Figure 1-3 This application provides a printed component, including a host 100, a cover plate 200, and a first pressing block 300.

[0050] The main unit 100 is the core component of the printer, containing key components such as the printhead, ink / toner cartridge, and transmission system. Upon receiving a print command, the printhead ejects ink or toner onto the printable material according to a preset pattern or text information, completing the printing task. A print slot 100a is provided for the printable material to pass through. The print 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.

[0051] 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.

[0052] 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 pressing 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.

[0053] In this embodiment of the application, when the first pressing block 300 rotates and the cover plate 200 is in the unfolded state, the second end 302 can swing relative to the cover plate 200 to move closer to and away from the inlet end 100b. When the cover plate 200 is in the closed state, the first end 301 is located on the side of the second end 302 that is closer to the inlet end 100b.

[0054] Described in the diagram, the inlet end 100b is located on the right, and the outlet end 100c is located on the left. Correspondingly, the second end 302 is on the left, and the first end 301 is on the right. That is, the wire tube moves from the right to the left. Thus, when the second end 302 presses against the wire tube, the friction between the wire tube and the second end 302 will cause the first pressure block 300 to have a clockwise rotation tendency. In this way, as the wire tube continues to move, the friction between the wire tube and the second end 302 is difficult to increase, thus ensuring the smoothness of the wire tube passing through the tube.

[0055] It should be understood that since the second end 302 can swing like the cover plate 200, when the cover plate 200 switches from the unfolded state to the closed state, the user needs to manually swing the first pressure block 300 so that the first pressure block 300 is in an inclined state, that is, the first end 301 is located on the side of the second end 302 near the inlet end 100b, until the second end 302 presses against the wire tube. The user can then remove their hand and continue to rotate the cover plate 200 until the cover plate 200 is in the closed state.

[0056] 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.

[0057] Therefore, in one embodiment of this application, please refer to Figure 3-4 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] In one embodiment of this application, please refer to Figure 5 The first end 301 has an abutment block 301a. When the cover plate 200 is in the unfolded state, the abutment block 301a can abut against the cover plate 200, and the first pressing block 300 is set at an angle to the cover plate 200 to restrict the first pressing block 300 from rotating toward the printing groove 100a.

[0062] 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, under the action of gravity, 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. This reduces the user's involvement and improves the efficiency of the cover plate 200 changing from the unfolded state to the closed state.

[0063] 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 4-5 The first end 301 is rotatably connected to the cover plate 200 via the first rotating shaft 303. A first torsion spring 304 is sleeved on the first rotating shaft 303. The first free end of the first torsion spring 304 is connected to the cover plate 200, and the second free end of the first torsion spring 304 is connected to the first pressure block 300. Under the action of the elastic force of the first torsion spring 304, the first end 301 has a tendency to move away from the cover plate 200.

[0064] That is, under the elastic force of the first torsion spring 304, the first pressure block 300 is driven to press against the wire marking tube. Under the elastic force of the first torsion spring 304 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.

[0065] 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.

[0066] 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.

[0067] The middle cover 220 separates the printing area from other parts to prevent debris and other contaminants from polluting the inside of the printer. In addition, the middle cover 220 is located inside the upper cover 210, and its rotation range is smaller than that of the upper cover 210. When the cover plate 200 is in the closed state, the middle cover 220 covers the printing slot 100a, the upper cover 210 covers the upper surface of the printer and the middle cover 220, and the projection of the middle cover 220 on the upper surface of the host 100 is smaller than that of the upper cover 210 on the upper surface of the host 100. Therefore, in this embodiment, when the cover plate 200 is switched from the unfolded state to the closed state, the first pressure block 300 can be more easily inserted into the printing slot 100a to press against the limit tube.

[0068] Further, see Figure 4-5 The middle cover 220 includes a cover body 221 and a vertical plate 222. The cover body 221 is rotatably connected to the main unit 100. The vertical plate 222 protrudes from the inner side of the cover body 221. Two oppositely arranged mounting holes 222a are formed on the vertical plate 222. The two mounting holes 222a have an opening at the opposite end. The two ends of the first rotating shaft 303 are respectively inserted into the two mounting holes 222a through the opening. The first rotating shaft 303 can rotate in the mounting holes 222a. Since the first end 301 of the first pressure block 300 is rotatably connected to the cover plate 200 through the first rotating shaft 303, the first pressure block 300 is driven to rotate relative to the cover body 221 through the rotation of the first rotating shaft 303.

[0069] In one embodiment, please refer to Figure 5 The end of the upright plate 222 away from the cover 221 has a guide opening 222b, which extends to the opening of the mounting hole 222a. The guide opening 222b has two sidewalls arranged along the length of the first rotating shaft 303, and the distance between the two sidewalls gradually decreases in the direction close to the cover 221.

[0070] The upright plate 222 and the cover 221 can be connected by integral molding or by fixing with screws, etc. By forming a guide port 222b on the upright plate 222, and the distance between the two side walls of the guide port 222b gradually decreases in the direction close to the cover 221, a funnel-like shape is formed, which can guide the first rotating shaft 303 to enter the mounting hole 222a more easily.

[0071] Furthermore, when the first rotating shaft 303 is inserted into the guide port 222b, it is guided by the two side walls, gradually adjusting its position and smoothly entering the mounting hole 222a. This not only simplifies the installation process but also improves the accuracy and stability of the installation.

[0072] In another embodiment of this application, the middle cover 220 is rotatably connected to the main unit 100 via a second rotating shaft. A second torsion spring is sleeved on the second rotating shaft. The first free end of the second torsion spring is connected to the main unit 100, and the second free end of the second torsion spring is connected to the middle cover 220. Under the action of the elastic force of the second torsion spring, the middle cover 220 has a tendency to move closer to the upper cover 210.

[0073] When the cover plate 200 is in the unfolded state, the middle cover 220, under the elastic force of the second torsion spring, tends to move closer to the upper cover 210. This allows the user to ensure that the middle cover 220 is in the open state when placing the wire tube, without the user having to manually hold the middle cover 220 to keep it open, thus reducing the difficulty of use.

[0074] On the other hand, the second torsion spring not only provides the restoring force, but also provides a certain damping feel during the opening and closing of the middle cover 220. This means that users can feel a more stable and smooth action when the middle cover 220 is opened and closed, avoiding the impact or noise caused by sudden opening and closing.

[0075] The second rotating shaft can be installed on the middle cover 220 or connected to the host 100, and there is no restriction. In this embodiment, in order to facilitate the assembly of the middle cover 220 and the host 100, the second rotating shaft and the middle cover 220 are an integral structure.

[0076] Please see Figure 1 In one embodiment of this application, the printer further includes a tube insertion detection device 400, which is disposed in the printing slot 100a and is used to detect whether the workpiece to be printed has passed through the printing slot 100a.

[0077] The inlet detection device 400 can detect whether the printable part has entered the print slot 100a. That is, when the printable part is not detected, the inlet detection device 400 can transmit a signal to the controller in the host 100, so that the controller can control the host 100 to pause or cancel the printing task, which can reduce printing errors and material waste caused by missing or incorrectly positioned printable parts.

[0078] The presence of the inlet tube detection device 400 can reduce printing errors and improve printing efficiency. Users do not need to worry about printing failures caused by the incorrect placement of the document to be printed, thereby improving the overall user experience.

[0079] The inlet pipe detection device 400 can be a pressure sensor, a photoelectric sensor 410, a microwave sensor, or a combination of any two or three sensors.

[0080] When the pressure sensor is in use, the wire tube contacts the pressure sensor. The pressure sensor converts the pressure signal into an electrical signal and transmits the electrical signal to the controller of the host 100. That is, the pressure sensor can determine whether the printable part has passed through the print slot 100a by detecting the pressure change generated by the printable part on the sensor.

[0081] When the photoelectric sensor 410 is used, it can determine whether the workpiece to be printed has passed through the printing slot 100a by emitting a light beam and detecting reflected light or obstruction. When the workpiece to be printed obstructs the light beam, the light signal received by the receiver will change, thereby triggering the detection circuit to output a corresponding signal.

[0082] When a microwave sensor is used, it can determine whether the workpiece has passed through the printing slot 100a by detecting changes in the frequency of microwaves reflected from it.

[0083] It is understandable that the above three sensors were purchased from commercially available products, so their working principles will not be described further here.

[0084] In one embodiment, please refer back to the previous section. Figure 1 and combined Figure 6 The inlet tube detection device 400 includes a rotating block 420 and an elastic element 430. The rotating block 420 is rotatably connected to the main unit 100. One end of the elastic element 430 is connected to the rotating block 420, and the other end of the elastic element 430 is connected to the main unit 100. The rotating block 420 is at least partially located on the main unit 100. When the wire tube passes through the inlet tube detection device 400, the rotating block 420 can rotate relative to the main unit 100.

[0085] In one embodiment of this application, the photoelectric sensor 410 used in the tube insertion detection device 400 is described as an example. When the wire tube has not passed through the tube insertion detection device 400, under the elastic force of the elastic member 430, the rotating block 420 partially blocks the wire bundle emitted by the photoelectric sensor 410. When the wire tube passes through the tube insertion detection device 400, under the pressure, the rotating block 420 will rotate, and the rotating block 420 will not block the wire bundle emitted by the photoelectric sensor 410 at this time. At this time, it can be determined that the wire tube has entered the tube.

[0086] Among them, the elastic element 430 is a tension spring. After the line number tube finishes printing, it is removed from the printing slot 100a and the tension spring returns to its original position. At this time, the rotating block 420 blocks the wire harness emitted by the photoelectric sensor 410, so the host 100 cancels or pauses the printing task, thereby reducing printing errors and material waste caused by missing or incorrectly positioned parts.

[0087] Based on the previous embodiment, when the cover plate 200 is in the closed state, the distance between the second end 302 and the rotating block 420 along the extension direction of the printing groove 100a is H, where H satisfies 0mm≤H≤20mm, and can be 0mm, 5mm, 10mm, 20mm and any two of the above values. When the second end 302 presses against the wire tube, it will apply a certain pressure to the wire tube. Within the above range, the second end 302 can assist the wire tube in driving the rotating block 420 to rotate, so that the tube detection device 400 can more accurately detect the presence of the wire tube, ensuring smooth printing and reducing the probability that the rotating block 420 is difficult to rotate due to the light weight of the wire tube.

[0088] Further, please refer to Figure 1 The rotating block 420 has a guide surface 420a, which is smoothly transitioned and is set towards the inlet end 100b. By setting the guide surface 420a, the smooth transition of the guide surface 420a can reduce the resistance and friction encountered by the wire tube when passing through the rotating block 420, and can ensure the smooth flow of the wire tube. The guide surface 420a can be an arc surface or an inclined surface, and no restrictions are imposed here.

[0089] In one embodiment, please continue to refer to Figure 1-2 The printer also includes a second pressure block 500, which is located inside the cover plate 200 and spaced apart from the first pressure block 300. When the cover plate 200 is closed, the second pressure block 500 is used to press against the workpiece to be printed.

[0090] 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 500, 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.

[0091] There can be one or two second pressure blocks 500. When there is only one, the second pressure block 500 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.

[0092] There are two second pressure blocks 500. The two second pressure blocks 500 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.

[0093] Furthermore, please continue reading Figure 3-4 The second pressing block 500 includes a second body 510 and a second rolling part 520. The second rolling part 520 is rotatably connected to the second body 510. When the cover plate 200 is in the closed state, the second rolling part 520 is used to press against the workpiece to be printed.

[0094] The axis of the second rolling part 520 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 520 is parallel to the axis of the first rolling part 320. Therefore, the contact between the second rolling part 520 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 520, and the smoothness of the wire tube can also be improved.

[0095] The second rolling part 520 can be made of an elastic material, such as rubber, silicone, or polyurethane, which can better adapt to the uneven surface of the wire tube. By slightly deforming, it ensures that the pressure is evenly distributed across the entire contact surface, thereby reducing print quality problems caused by excessive local pressure. In addition, the elastic material has good shock absorption properties, which can absorb and disperse the vibration and noise generated during the printing process, reducing interference with the surrounding environment.

[0096] 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.

[0097] 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 is rotatably connected to the main unit. The cover plate has an unfolded state and a closed state. When the cover plate is in the closed state, the cover plate is closed to the main unit. as well as The first pressure block has a first end and a second end. The first end is rotatably connected to the cover plate. The second end is used to press against the workpiece to be printed when the cover plate is in the closed state. When the cover plate is in the unfolded state, the second end can swing relative to the cover plate to move closer to and away from the inlet end. 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.

2. 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.

3. The printer according to claim 2, characterized in that, The material of the first rolling part includes an elastic material.

4. The printer according to claim 1, characterized in that, The first end has an abutment block. When the cover plate is in the unfolded state, the abutment block abuts against the cover plate, and the first pressing block is set at an angle to the cover plate to restrict the first pressing block from rotating toward the printing groove.

5. The printer according to claim 1, characterized in that, The first end is rotatably connected to the cover plate via a first rotating shaft. A first torsion spring is sleeved on the first rotating shaft. The first free end of the first torsion spring is connected to the cover plate, and the second free end of the first torsion spring is connected to the first pressure block. Under the action of the elastic force of the first torsion spring, the first end has a tendency to move away from the cover plate.

6. The printer according to claim 5, 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 between the main unit and the upper cover; The first pressure block is located on the side of the middle cover opposite to the upper cover.

7. The printer according to claim 6, characterized in that, The middle cover includes: The cover is rotatably connected to the main unit; and A vertical plate protrudes from the inner side of the cover body. Two oppositely arranged mounting holes are formed on the vertical plate. The two mounting holes have openings at their opposite ends. The two ends of the first rotating shaft are respectively inserted into the two mounting holes through the openings. The upright plate has a guide opening at one end away from the cover, which extends to the opening of the mounting hole. The guide opening has two sidewalls arranged along the length of the first rotating shaft, and the distance between the two sidewalls gradually decreases as they approach the cover.

8. The printer according to claim 6, characterized in that, The middle cover is rotatably connected to the main unit via a second rotating shaft. A second torsion spring is sleeved on the second rotating shaft. The first free end of the second torsion spring is connected to the main unit, and the second free end of the second torsion spring is connected to the middle cover. Under the action of the elastic force of the second torsion spring, the middle cover has a tendency to move closer to the upper cover.

9. The printer according to claim 1, characterized in that, The printer also includes a tube insertion detection device, which is located inside the printing slot and is used to detect whether the workpiece to be printed has passed through the printing slot.

10. The printer according to claim 9, characterized in that, The inlet detection device includes at least one of a pressure sensor, a photoelectric sensor, and a microwave sensor.

11. The printer according to claim 9, characterized in that, The inlet pipe detection device includes: A rotating block is rotatably connected to the main unit; and An elastic element, one end of which is connected to the rotating block, and the other end of which is connected to the main unit; The rotating block is at least partially disposed within the printing slot, and the rotating block is able to rotate relative to the host when the workpiece to be printed passes through the inlet detection device.

12. The printer according to claim 11, characterized in that, In the closed state, the distance between the second end and the rotating block along the extension direction of the printing groove is H, wherein H satisfies 0mm≤H≤20mm.

13. The printer according to claim 11, characterized in that, The rotating block has a guide surface that transitions smoothly and is positioned toward the inlet end.

14. The printer according to claim 1, characterized in that, The printer further includes a second pressure block, which is disposed on the inner side of the cover plate and spaced apart from the first pressure block. When the cover plate 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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