Printer main body

Abstract

The application provides a printer main body, the printer main body is formed with a first accommodating cavity, the printer main body includes a transmission shaft and a cutting assembly, at least part of the transmission shaft is located in the first accommodating cavity and extends along the depth direction of the first accommodating cavity, the cutting assembly has a cutting position, at least part of the cutting assembly is located in the first paper feeding section under the cutting position, so that the label paper in the first paper feeding section can be cut, wherein the first paper feeding section has two side walls extending along the first paper feeding direction and opposite in the first direction, the interval h1 of the two side walls in the first direction satisfies: 2mm≤h1≤8mm, so that by h1 being in the above suitable range, not only the possibility of the user's finger stretching into the first paper feeding section and contacting the cutting assembly is reduced, but also the smoothness of the label paper paper output is considered.

Description

Technical Field

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

[0002] In related technologies, printed labels need to be fed out from the paper output port. In order to cut the fed labels, a cutting device is set at the paper output port. If the user accidentally puts his hand into the cutting device, there is a risk of cutting his finger. Utility Model Content

[0003] This application provides a printer body that can solve the technical problem of the risk of users accidentally putting their hands into the cutting part and cutting their fingers.

[0004] This application provides a printer body, the printer body having a first receiving cavity, the printer body having a first paper feeding channel, the first paper feeding channel having a first paper inlet and a first paper outlet along the paper feeding direction, the first paper inlet communicating with the first receiving cavity, the first paper feeding channel including a first paper feeding segment, the first paper feeding segment having a first paper feeding direction;

[0005] The printer body includes a drive shaft and a cutting assembly. At least a portion of the drive shaft is located in the first receiving cavity and extends along the depth direction of the first receiving cavity. The first receiving cavity is used to receive a consumable box. The spool of the ribbon roll in the consumable box is sleeved on the drive shaft. The cutting assembly has a cutting position. At the cutting position, at least a portion of the cutting assembly is located in the first paper feed section so as to be able to cut the label paper in the first paper feed section.

[0006] The first paper feeding section has two sidewalls extending along the first paper feeding direction and opposite to each other in the first direction. The distance h1 between the two sidewalls in the first direction satisfies: 2mm≤h1≤8mm. The first direction is perpendicular to the axial direction of the drive shaft.

[0007] In some embodiments, the printer body has a second receiving cavity, the first paper feed section communicates with the second receiving cavity, and at least a portion of the cutting assembly is located in the second receiving cavity.

[0008] In some embodiments, the cutting component includes:

[0009] First cutting section; and

[0010] The second cutting part extends at an angle to the extension direction of the first cutting part. The cutting assembly is configured such that the second cutting part and the first cutting part can rotate relative to each other, thereby reducing the angle between the second cutting part and the first cutting part, so that the cutting assembly is located at the cutting position.

[0011] In some embodiments, the cutting component includes:

[0012] The rotating shaft is fixed relative to the first paper feeding section. The first cutting part and the second cutting part are both sleeved on the rotating shaft. The first cutting part is fixed relative to the rotating shaft, and the second cutting part can rotate relative to the central axis of the rotating shaft to change the included angle between the second cutting part and the first cutting part.

[0013] In some embodiments, the first cutting portion has a first cutting edge, which extends along the extending direction of the first cutting portion and is disposed adjacent to the second cutting portion. The projection of the first cutting edge in the reference plane is a first projection. The projection of the inner wall surface of the first paper feeding segment in the reference plane includes a first projection line and a second projection line. The first projection is located between the first projection line and the second projection line. The reference plane is perpendicular to the depth direction of the first receiving cavity.

[0014] In some embodiments, the first cutting portion is disposed adjacent to the first projection line, and the first projection protrudes at a height h2 relative to the first projection line, satisfying: 1.5mm≤h2≤4mm;

[0015] And / or, the first cutting line extends along the axis of the drive shaft.

[0016] In some embodiments, the cutting assembly further has a waiting position in which the projection of the second cutting edge of the second cutting portion onto a reference plane is a second projection, the projection of the inner wall surface of the first paper feeding channel onto the reference plane is a third projection, the second projection is located outside the third projection, and the reference plane is perpendicular to the depth direction of the first receiving cavity.

[0017] In some embodiments, the cutting assembly further has a waiting position, in which the intersection of the cutting line of the first cutting portion and the cutting line of the second cutting portion intersects at a first intersection point, and the first paper feed segment has a first end point and a second end point distributed along the depth direction of the first receiving cavity;

[0018] Wherein, along the depth direction of the first receiving cavity, the first intersection point is located on the side of the first endpoint away from the second endpoint.

[0019] In some embodiments, the printer body further includes a button, the cutting assembly further includes a pressing portion connected to the second cutting portion, the printer body has a first end face and a second end face opposite to each other along the depth direction of the first receiving cavity, the pressing surface of the button is exposed through the first end face, the pressing portion is located in the pressing direction of the button, and the button is configured to act on the pressing portion when pressed to reduce the included angle between the second cutting portion and the first cutting portion.

[0020] In some embodiments, the cutting assembly further includes an elastic element, one end of which is connected to the second cutting part and the other end of which is connected to the printer body. In the cutting position, the elastic element is in a deformed state and has a tendency to move toward the recovery state. The cutting assembly also has a waiting position, which is located on the recovery movement path of the elastic element.

[0021] In some embodiments, the printer body includes a housing and a cover, the housing and the cover are connected, a first receiving cavity is formed between the housing and the cover, the cover has an open state and a closed state, the housing is provided with a first paper feeding channel, the housing has a surface facing the cover, the first paper feeding channel extends through the surface, and in the closed state the cover covers the surface.

[0022] In some embodiments, the distance h3 between the cutting assembly and the surface along the depth direction of the first receiving cavity satisfies: 3mm ≤ h3 ≤ 6mm.

[0023] In some embodiments, the printer body has a first surface, a second surface, and a third surface parallel to the axis of the drive shaft, the first surface and the second surface being disposed opposite each other, the third surface being disposed between the first surface and the second surface, the first paper outlet being disposed on the third surface, and the first surface being closer to the first paper outlet than the second surface.

[0024] In some embodiments, the first paper feeding channel further includes a second paper feeding segment extending along the paper feeding direction, the second paper feeding segment being disposed adjacent to the first paper output port, the second paper feeding segment including a first paper guide surface adjacent to the second surface, the first paper guide surface extending at an angle relative to the second surface in a gradually approaching trend in the direction from the first paper inlet to the first paper output port.

[0025] In some embodiments, the acute angle β between the first paper guide surface and the direction of the first paper inlet pointing to the first paper outlet satisfies: 30°≤β≤60°.

[0026] In some embodiments, the second paper feed segment is connected to the first paper feed segment, and the distance h4 between the junction of the second paper feed segment and the first paper feed segment and the cutting assembly in the first paper feed direction at the cutting position satisfies: 4mm≤h4≤8mm.

[0027] Based on the embodiments of this application, the printer body has a first receiving cavity. The printer body includes a drive shaft and a cutting assembly. At least a portion of the drive shaft is located in the first receiving cavity and extends along the depth direction of the first receiving cavity. The cutting assembly has a cutting position. At the cutting position, at least a portion of the cutting assembly is located in a first paper feed section to cut the label paper in the first paper feed section. The first paper feed section has two sidewalls extending along the first paper feed direction and opposite to each other in the first direction. The distance h1 between the two sidewalls in the first direction satisfies: 2mm≤h1≤8mm. Thus, by keeping h1 within the above-mentioned suitable range, not only is the possibility of the user's finger being inserted into the first paper feed section and coming into contact with the cutting assembly reduced, but the smoothness of the label paper output is also taken into account. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the printer body and ribbon cartridge provided in the embodiments of this application;

[0029] Figure 2 yes Figure 1 A structural diagram of the structure shown from another perspective;

[0030] Figure 3 yes Figure 1 Another structural diagram of the structure shown.

[0031] Figure 4 This is a schematic diagram of the internal structure of the printer body provided in the embodiments of this application;

[0032] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0033] Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure at point BB.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Printer body; 100a. First receiving cavity; 100b. First paper feeding path; 100b1. First paper feeding segment; 101b1. First endpoint; 102b1. Second endpoint; 100b2. First projection line; 100b3. Second projection line; 100b4. Second paper feeding segment; 100b5. First paper guide surface; 100c. First paper inlet; 100d. First paper outlet; 100e. Second receiving cavity; 101. First end face; 102. Second end face; 103. First surface; 104. Second surface; 105. Third surface;

[0036] 10. Cutting assembly; 11. First cutting section; 111. First cutting edge; 12. Second cutting section; 121. Second cutting edge; 13. Rotating shaft; 14. Pressing section; 15. Elastic element;

[0037] 20. Buttons;

[0038] 30. Box body;

[0039] 40. Cover;

[0040] 200. Consumables box;

[0041] X, the first direction. Detailed Implementation

[0042] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0043] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0044] In existing technology, printed labels need to be fed out from the paper outlet. In order to cut the fed labels, a cutting device is set at the paper outlet. If the user accidentally puts his hand into the cutting device, especially for children who are not very safety conscious, there is a risk of cutting their fingers.

[0045] To resolve the above technical issues, please refer to [link / reference]. Figures 1 to 3This application provides a printer body 100, which serves as the main structure of the printer, providing stable support for all other components and ensuring the stability and durability of the printer during operation. Furthermore, the printer body 100 is the core component of the entire label printer, responsible for controlling the printing process, processing print data, and providing support and power to other components. The printer body 100 has a first receiving cavity 100a. Key electronic components such as circuit boards, power management modules, and data processing units are integrated on the printer body 100, all of which can be located within the first receiving cavity 100a. When these electronic components receive a printing command, they heat the print head to transfer the ink or toner on the ribbon onto paper or other media, completing the printing task.

[0046] The printer body 100 is provided with a first paper feeding channel 100b, the first paper feeding channel 100b has a first paper inlet 100c and a first paper outlet 100d along the paper feeding direction, the first paper inlet 100c is connected to a first receiving cavity 100a, and the first paper feeding channel 100b includes a first paper feeding segment 100b1, the first paper feeding segment 100b1 has a first paper feeding direction;

[0047] The printer body 100 includes a drive shaft (not shown) and a cutting assembly 10. At least a portion of the drive shaft is located in a first receiving cavity 100a and extends along the depth direction of the first receiving cavity 100a. The first receiving cavity 100a is used to receive a consumable cartridge 200. The spool of the ribbon roll inside the consumable cartridge 200 is sleeved on the drive shaft. The ribbon roll consists of a ribbon base and a thermoplastic ink layer coated on its surface. During printing, the printer's heating head precisely heats the ribbon according to the pattern, causing the ink layer to melt and transfer onto the label paper, forming high-precision graphics.

[0048] The cutting component 10 is mainly used to cut the label paper after printing. Therefore, the cutting component 10 has a cutting position. At least part of the cutting component 10 is located in the first paper feed section 100b1 in the cutting position so as to be able to cut the label paper in the first paper feed section 100b1.

[0049] Please refer to Figure 3 The first paper feeding section 100b1 has two sidewalls extending along the first paper feeding direction and opposite each other along the first direction X. The distance h1 between the two sidewalls in the first direction X satisfies: 2mm≤h1≤8mm. The first direction X is perpendicular to the axis of the drive shaft.

[0050] h1 can be any two values ​​between 2mm, 4mm, 5mm, 7mm, 8mm or more. When h1 is within the above range, the distance between the two side walls of the first paper feeding section 100b1 is appropriate. This ensures that it is difficult for a child's fingers to stick into the first paper feeding section 100b1, thus reducing the possibility of a child's fingers coming into contact with the cutting component 10.

[0051] In addition, when h1 is within the above-mentioned suitable range, it can avoid excessive friction between the two side walls and the label paper, ensuring that the label paper can smoothly enter the first paper feeding channel 100b, and also ensuring smooth paper feeding in the first paper feeding section 100b1.

[0052] It is understood that the cutting component 10 can be a single cutter, that is, regardless of whether the cutting component 10 is in the cutting position or the waiting position, the cutting component 10 is located within the first paper feed section 100b1. The cutting component 10 can also be a dual-cutter mode, such as cutting label paper by shearing. In order to quickly cut the label paper, in this embodiment of the application, the cutting component 10 is described as a dual-cutter mode. The printer body 100 forms a second receiving cavity 100e, which is located outside the first receiving cavity 100a. The first paper feed section 100b1 communicates with the second receiving cavity 100e, and at least a portion of the cutting component 10 is located in the second receiving cavity 100e.

[0053] When at least a portion of the cutting component 10 is located in the second receiving cavity 100e, that is, when the cutting component 10 is not cutting, it will not occupy too much space in the first paper feeding section 100b1, thus ensuring smooth paper feeding of the label in the first paper feeding section 100b1.

[0054] In one embodiment, please refer to Figure 4 The cutting assembly 10 includes a first cutting part 11 and a second cutting part 12. The extension direction of the second cutting part 12 is set at an angle to the extension direction of the first cutting part 11. The cutting assembly 10 is configured such that the second cutting part 12 and the first cutting part 11 can rotate relative to each other, thereby reducing the angle between the second cutting part 12 and the first cutting part 11, so that the cutting assembly 10 is located in the cutting position.

[0055] That is, the cutting component 10 is scissor-shaped, so that the blade end of the first cutting part 11 is adjacent to the end of the second cutting part 12 and the blade end of the second cutting part 12 is adjacent to the end of the first cutting part 11. Therefore, the ends of the first cutting part 11 and the second cutting part 12 facing the first paper outlet 100d are not blade ends. That is, even if a user's finger is inserted into the first paper feed section 100b1, it is difficult to be cut by the first cutting part 11 and the second cutting part 12. In this way, the risk of the user's finger being cut can be further reduced.

[0056] In addition, the cutting component 10 is scissor-shaped, and the scissor-type structure forms a line contact cut by closing the double blades, which can easily cut the label paper.

[0057] Further, please refer to Figure 4The cutting assembly 10 includes a rotating shaft 13, which is fixed relative to the first paper feeding section 100b1, i.e., fixed in the first receiving cavity 100a. The first cutting part 11 and the second cutting part 12 are both sleeved on the rotating shaft 13. The first cutting part 11 is fixed relative to the rotating shaft 13, and the second cutting part 12 can rotate relative to the central axis of the rotating shaft 13 to change the included angle between the second cutting part 12 and the first cutting part 11.

[0058] That is, the cutting operation can be achieved by only rotating the second cutting part 12 toward the first cutting part 11. Compared with the first cutting part 11 and the second cutting part 12 rotating to complete the cutting action, the mass of the moving parts is relatively reduced. When the motor drives the second cutting part 12 to rotate, the output torque can be reduced. When the second cutting part 12 is manually driven to rotate, the operation difficulty for the user can be reduced.

[0059] Furthermore, since only the second cutting section 12 rotates, there is no need to provide space for the first cutting section 11 to move, thus freeing up more space inside the printer body 100 to arrange circuit boards and other components, which helps to miniaturize the entire printer body 100.

[0060] Following on from the above, please refer to Figure 3 and Figure 5 The first cutting section 11 has a first cutting edge 111. The first cutting edge 111 extends along the extending direction of the first cutting section 11 and is disposed adjacent to the second cutting section 12. The projection of the first cutting edge 111 in the reference plane is the first projection. The projection of the inner wall surface of the first paper feeding section 100b1 in the reference plane includes a first projection line 100b2 and a second projection line 100b3. The first projection is located between the first projection line 100b2 and the second projection line 100b3. The reference plane is perpendicular to the depth direction of the first receiving cavity 100a.

[0061] Regardless of whether the cutting component 10 is in the cutting position or the waiting position, the first cutting part 11 is located within the first paper feeding section 100b1. This means that the user can visually observe the contact position between the first cutting part 11 and the label paper, avoiding incorrect cutting positions. In addition, the cutting position is intuitively visible, allowing users to complete accurate cutting without training, and the label paper position can be adjusted in real time to align the first cutting edge 111 with the preset cutting line.

[0062] On the other hand, since the first cutting section 11 occupies the space inside the first paper feeding section 100b1, it saves other space inside the printer body 100, freeing up space for the layout of consumable box 200 or circuit board and other components inside the printer, which is conducive to the miniaturization design of the printer body 100.

[0063] In a further embodiment, the first cutting edge 111 extends along the axis of the drive shaft, that is, when the second cutting part 12 rotates toward the first cutting part 11, it avoids the label paper from being bent by the second cutting part 12, thereby avoiding the label paper from wrinkling and improving the printing effect.

[0064] In addition, please see Figure 3 and Figure 5 The first cutting part 11 is located adjacent to the first projection line 100b2. The first projection protrudes at a height h2 relative to the first projection line 100b2, which satisfies the following condition: 1.5mm ≤ h2 ≤ 4mm. h2 can be any two values ​​between 1.5mm, 2mm, 3mm, 4mm or above. When h2 is within the above range, the protrusion height of the first cutting part 11 is appropriate. This avoids the risk of cutting errors if the h2 value is too small, as it would be difficult to see the cutting position of the first cutting part 11. It also avoids the risk of cutting errors if the h2 value is too large, because if the h2 value is too large, the first cutting part 11 will lift the label paper too high, resulting in an excessively large bending angle of the label paper, which would affect the smoothness of the label paper feeding.

[0065] That is, when h2 is within the above range, the cutting accuracy of the first cutting part 11 and the smoothness of the label paper feeding in the first paper feeding section 100b1 are taken into account.

[0066] To further ensure the smoothness of label paper feeding, when the cutting assembly 10 is in the waiting position, that is, when it does not cut the label paper, the projection of the second cutting edge 121 of the second cutting part 12 in the reference plane is the second projection, and the projection of the inner wall surface of the first paper feeding channel 100b in the reference plane is the third projection. The second projection is located outside the third projection, and the reference plane is perpendicular to the depth direction of the first receiving cavity 100a.

[0067] Thus, the projection of the second cutting edge 121 (second projection) is completely outside the projection of the inner wall surface of the first paper feeding channel 100b (third projection), making it difficult for the label paper to contact the second cutting part 12, thereby reducing the probability of paper jams and ensuring the smooth feeding of the label paper.

[0068] Furthermore, when the cutting assembly 10 is in the waiting position, since the second cutting section 12 exits the first paper feed section 100b1, it is difficult for the user to touch the second cutting edge 121 of the second cutting section 12, which further improves the safety of the entire printer body 100.

[0069] It is also necessary to understand that, please refer to Figure 3 , Figure 4 as well as Figure 6When the cutting component 10 is in the waiting position, it is the normal paper feeding stage of the label paper. Therefore, in order to reduce the impact of the cutting component 10 on the label paper at this time, in one embodiment of this application, when the cutting component 10 is in the waiting position, the intersection of the cutting line of the first cutting part 11 and the cutting line of the second cutting part 12 intersects at the first intersection point O. The first paper feeding segment 100b1 has a first endpoint 101b1 and a second endpoint 102b1 distributed along the depth direction of the first receiving cavity 100a.

[0070] Wherein, along the depth direction of the first receiving cavity 100a, the first intersection point O is located on the side of the first endpoint 101b1 away from the second endpoint 102b1.

[0071] In this way, the first intersection point O of the cutting line of the first cutting part 11 and the cutting line of the second cutting part 12 is located below the first paper feeding section 100b1, that is, outside the first paper feeding section 100b1. There will be no phenomenon of "lifting up" the label paper. Thus, the cutting line of the first cutting part 11 and the second cutting part 12 will not block the normal paper feeding of the label paper, ensuring the smoothness of the label paper feeding.

[0072] The rotation of the second cutting part 12 can be driven by a motor or manually driven. In this embodiment, the rotation of the second cutting part 12 is described by way of manual driving. That is, the cutting action is triggered by the physical button 20, which eliminates electronic risks such as short circuits and motor failures and improves the reliability of the entire printer body 100.

[0073] Please see Figure 4 The printer body 100 also includes a button 20, and the cutting assembly 10 also includes a pressing part 14 connected to the second cutting part 12. The printer body 100 has a first end face 101 and a second end face 102 that are opposite each other along the depth direction of the first receiving cavity 100a. The pressing surface of the button 20 is exposed through the first end face 101, and the pressing part 14 is located in the pressing direction of the button 20. The button 20 is configured to act on the pressing part 14 when pressed to reduce the included angle between the second cutting part 12 and the first cutting part 11.

[0074] Button 20 is directly exposed on the first end face 101 of the printer, and users can see the area of ​​button 20 directly. They can quickly trigger the cutting by "pressing" the button, reducing the difficulty of operation.

[0075] The travel of button 20 is precisely matched with the rotation angle of the second cutting part 12. Users can confirm the cutting progress by touch, avoid excessive pressing, and judge whether the second cutting part 12 can rotate normally through feedback, and further determine whether the cutting is completed.

[0076] The button 20 is directly connected to the cutting part via the pressing part 14, eliminating the need for complex drive components such as motors and transmission gears, which is beneficial for the miniaturization and lightweight design of the entire printer body 100.

[0077] In order to achieve automatic reset of button 20, that is, after the cutting component 10 completes the cutting, the second cutting part 12 is reset back into the second receiving cavity 100e to ensure the smooth paper feeding of the label paper and to prepare for the next cutting, in one embodiment of this application, the cutting component 10 further includes an elastic element 15. One end of the elastic element 15 is connected to the second cutting part 12, and the other end of the elastic element 15 is connected to the printer body 100. In the cutting position, the elastic element 15 is in a deformed state and has a tendency to move towards the recovery state. The cutting component 10 also has a waiting position, which is located on the recovery movement path of the elastic element 15.

[0078] The elastic element 15 is preferably a spring. When the spring is in the cutting position, it is in a deformed state, that is, in a stretched state. When it is in the waiting position, the spring switches to the restoring state. That is, when the user does not press the button 20, the spring causes the cutting component 10 to reset from the cutting position to the waiting position under the action of elastic force. In other words, the user does not need to manually reset or wait for mechanical rebound, which reduces the difficulty of operation.

[0079] In addition, the spring provides progressive resistance, allowing users to sense the cutting progress by applying pressure and avoid excessive pressure that could damage components.

[0080] In one embodiment of this application, please refer to Figures 1 to 3 The printer body 100 includes a housing 30 and a cover 40. The housing 30 and the cover 40 are connected, and a first receiving cavity 100a is formed between the housing 30 and the cover 40. The cover 40 has an open state and a closed state. The housing 30 is provided with a first paper feeding channel 100b. The housing 30 has a surface facing the cover 40. The first paper feeding channel 100b extends to the through surface. In the closed state, the cover 40 covers the surface.

[0081] When using the printer, the consumable box 200 needs to be installed into the printer body 100. Therefore, an insertion / removal port is provided at the end of the first receiving cavity 100a so that the consumable box 200 can be installed into the first receiving cavity 100a. In this embodiment, it is also necessary to consider that the label paper should be sorted first so that the label paper can feed continuously and smoothly during printing. Therefore, when loading the consumable box 200, the label paper also needs to be placed into the first paper feeding channel 100b so that it is in the position to be printed.

[0082] Therefore, the first paper feeding channel 100b extends to the through surface, that is, the first paper feeding channel 100b forms an opening on the surface, which makes it convenient for users to put the label paper into the first paper feeding channel 100b through the opening. However, users, especially children, may still insert their fingers into the first paper feeding segment 100b1 through the surface, which may pose a risk of cutting their fingers. Therefore, in this embodiment of the application, the cover 40 covers the surface in the closed state, that is, it can also cover the opening of the first paper feeding channel 100b on the surface, thereby reducing the possibility of fingers being inserted into the first paper feeding segment 100b1 through the surface and coming into contact with the cutting component 10.

[0083] When the cover 40 is closed, it can be secured to the cartridge 30 by means of clips or magnets, preventing accidental opening during printing and thus avoiding safety hazards or affecting print quality. Simultaneously, covering the surface of the printer body 100 reduces external interference, such as dust or foreign objects entering, protecting the internal mechanical structure and ensuring print quality.

[0084] Since the cover 40 needs to be in an open state so that the user can replace the consumable box 200 or repair the printer body 100, in order to further reduce the possibility of the cutting component 10 cutting hands, in one embodiment of this application, please refer to... Figure 3 Along the depth direction of the first receiving cavity 100a, the distance h3 between the cutting component 10 and the surface satisfies: 3mm≤h3≤6mm.

[0085] H3 can be any two values ​​between 3mm, 4mm, 5mm, 6mm or more. When h3 is within the above range, the distance between the cutting component 10 and the surface is appropriate. On the one hand, this is conducive to the miniaturization design of the entire printer body 100. On the other hand, even if the user inserts his / her fingers into the first paper feed section 100b1 through the opening on the surface, it is difficult for the user's fingers to come into contact with the cutting component 10, which further reduces the risk of cutting hands.

[0086] In one embodiment of this application, please refer to Figure 2 and Figure 3 The printer body 100 has a first surface 103, a second surface 104 and a third surface 105 parallel to the axis of the drive shaft. The first surface 103 and the second surface 104 are disposed opposite each other, and the third surface 105 is disposed between the first surface 103 and the second surface 104. The first paper outlet 100d is disposed on the third surface 105. The first surface 103 is closer to the first paper outlet 100d than the second surface 104.

[0087] by Figure 2The orientation shown is for reference only. The first surface 103 is the upper surface of the printer body 100, the second surface 104 is the lower surface of the printer body 100, and the third surface 105 is the right surface of the printer body 100. Since the first surface 103 is closer to the first paper output port 100d than the second surface 104, that is, the first paper output port 100d is closer to the upper side, when the user holds the printer body 100, there will be more space in the lower part (that is, between the second surface 104 and the first paper output port 100d) to facilitate the user's grip, increase the friction between the user's hand and the printer body 100, and ensure that the printer body 100 is not easily slipped from the user's hand when held. In addition, anti-slip textures can be set on the printer body 100 to further increase friction and further increase reliability.

[0088] Furthermore, please refer to Figure 2 The first paper feeding channel 100b also includes a second paper feeding segment 100b4 extending along the paper feeding direction. The second paper feeding segment 100b4 is disposed adjacent to the first paper output port 100d. The second paper feeding segment 100b4 includes a first paper guiding surface 100b5 adjacent to the second surface 104. In the direction from the first paper inlet 100c to the first paper output port 100d, the first paper guiding surface 100b5 extends at an angle relative to the second surface 104 with a gradually approaching tendency.

[0089] The first paper guide surface 100b5 is inclined toward the second surface 104 (lower surface). When the user holds the printer body 100, the end of the label paper naturally falls to the user's holding area (between the lower surface and the paper output) under the action of gravity, realizing a "print and take" zero-wait operation, which is more in line with the user's paper taking habits.

[0090] Furthermore, by extending the first paper guide surface 100b5 towards the second surface 104 in a gradually approaching direction, the label paper transitions more smoothly to the outer surface (third surface 105) of the printer body 100 after exiting through the first paper outlet 100d, which can prevent the label paper from bending too much and wrinkling.

[0091] Similarly, in the direction from the first paper inlet 100c to the first paper outlet 100d, the overall diameter of the second paper feed section 100b4 gradually increases, making the label paper output smoother.

[0092] Optionally, please refer to Figure 2The acute angle β between the first paper guide surface 100b5 and the direction from the first paper inlet 100c to the first paper outlet 100d satisfies: 30°≤β≤60°. β can be any two values ​​between 30°, 40°, 50°, 60°, or higher. When β is within the above range, the first paper guide surface 100b5 helps the label paper to exit smoothly and avoids paper jams. If β is too small, the first paper guide surface 100b5 will not be able to effectively guide the label paper. At the same time, if the β angle is too large, the label paper will suddenly turn, which not only increases resistance but also causes excessive bending angles, potentially damaging the label paper and affecting its readability.

[0093] Because the entire second paper feeding section 100b4 is flared, users, especially children with weak safety awareness, may still insert their fingers into the first paper feeding section 100b1 and come into contact with the cutting component 10, thus posing a risk of cutting their hands. Therefore, in one embodiment of this application, in order to reduce the risk of cutting hands, the second paper feeding section 100b4 is connected to the first paper feeding section 100b1, and the distance h4 between the junction of the second paper feeding section 100b4 and the first paper feeding section 100b1 and the cutting component 10 in the first paper feeding direction at the cutting position satisfies: 4mm≤h4≤8mm.

[0094] h4 can be any two values ​​between 4mm, 5mm, 6mm, 8mm or more. When h4 is within the above range, that is, the distance between the junction of the second paper feed segment 100b4 and the first paper feed segment 100b1 and the cutting component 10 is appropriate, the cutting component 10 and the junction form a safety buffer zone. Even if the user's finger is inserted into the first paper feed segment 100b1, it is difficult to come into contact with the cutting component 10, thereby reducing the risk of cutting the hand.

[0095] It is also important to understand that by using the range of h4 mentioned above, the length of the first paper feed section 100b1 can be relatively reduced, which is beneficial to the miniaturization and lightweight design of the entire printer body 100.

[0096] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A printer body characterized by comprising: The printer body has a first receiving cavity, and the printer body is provided with a first paper feeding channel. The first paper feeding channel has a first paper inlet and a first paper outlet along the paper feeding direction. The first paper inlet is connected to the first receiving cavity. The first paper feeding channel includes a first paper feeding segment, and the first paper feeding segment has a first paper feeding direction. The printer body includes a drive shaft and a cutting assembly. At least a portion of the drive shaft is located in the first receiving cavity and extends along the depth direction of the first receiving cavity. The first receiving cavity is used to receive a consumable box. The spool of the ribbon roll in the consumable box is sleeved on the drive shaft. The cutting assembly has a cutting position. At the cutting position, at least a portion of the cutting assembly is located in the first paper feed section so as to be able to cut the label paper in the first paper feed section. The first paper feeding section has two sidewalls extending along the first paper feeding direction and opposite to each other in the first direction. The distance h1 between the two sidewalls in the first direction satisfies: 2mm≤h1≤8mm. The first direction is perpendicular to the axial direction of the drive shaft.

2. The printer body of claim 1, wherein, The printer body has a second receiving cavity, the first paper feed section communicates with the second receiving cavity, and at least a portion of the cutting assembly is located in the second receiving cavity.

3. The printer body of claim 1, wherein, The cutting assembly includes: First cutting section; and The second cutting part extends at an angle to the extension direction of the first cutting part. The cutting assembly is configured such that the second cutting part and the first cutting part can rotate relative to each other, thereby reducing the angle between the second cutting part and the first cutting part, so that the cutting assembly is located at the cutting position.

4. The printer body of claim 3, wherein, The cutting assembly includes: The rotating shaft is fixed relative to the first paper feeding section. The first cutting part and the second cutting part are both sleeved on the rotating shaft. The first cutting part is fixed relative to the rotating shaft, and the second cutting part can rotate relative to the central axis of the rotating shaft to change the included angle between the second cutting part and the first cutting part.

5. The printer body according to claim 4, characterized in that, The first cutting part has a first cutting edge, which extends along the extending direction of the first cutting part and is disposed adjacent to the second cutting part. The projection of the first cutting edge in the reference plane is a first projection. The projection of the inner wall surface of the first paper feeding section in the reference plane includes a first projection line and a second projection line. The first projection is located between the first projection line and the second projection line. The reference plane is perpendicular to the depth direction of the first receiving cavity.

6. The printer body according to claim 5, characterized in that, The first cutting portion is disposed adjacent to the first projection line, and the first projection protrudes at a height h2 relative to the first projection line, satisfying: 1.5mm≤h2≤4mm; And / or, the first cut edge extends along the axis of the drive shaft.

7. The printer body according to claim 3, characterized in that, The cutting assembly also has a waiting position, in which the projection of the second cutting edge of the second cutting part onto the reference plane is the second projection, the projection of the inner wall surface of the first paper feeding channel onto the reference plane is the third projection, the second projection is located outside the third projection, and the reference plane is perpendicular to the depth direction of the first receiving cavity.

8. The printer body according to any one of claims 3 to 7, characterized in that, The cutting assembly also has a waiting position, in which the intersection of the cutting line of the first cutting part and the cutting line of the second cutting part is at a first intersection point, and the first paper feeding segment has a first end point and a second end point distributed along the depth direction of the first receiving cavity; Wherein, along the depth direction of the first receiving cavity, the first intersection point is located on the side of the first endpoint away from the second endpoint.

9. The printer body according to claim 3, characterized in that, The printer body also includes a button, and the cutting assembly also includes a pressing part connected to the second cutting part. The printer body has a first end face and a second end face opposite to each other along the depth direction of the first receiving cavity. The pressing surface of the button is exposed through the first end face. The pressing part is located in the pressing direction of the button. The button is configured to act on the pressing part when pressed to reduce the included angle between the second cutting part and the first cutting part.

10. The printer body according to claim 9, characterized in that, The cutting assembly further includes an elastic element, one end of which is connected to the second cutting part and the other end of which is connected to the printer body. In the cutting position, the elastic element is in a deformed state and tends to move towards the recovery state. The cutting assembly also has a waiting position, which is located on the recovery movement path of the elastic element.

11. The printer body according to claim 1, characterized in that, The printer body includes a housing and a cover. The housing and the cover are connected, and a first receiving cavity is formed between the housing and the cover. The cover has an open state and a closed state. The housing is provided with a first paper feeding channel. The housing has a surface facing the cover. The first paper feeding channel extends through the surface. In the closed state, the cover covers the surface.

12. The printer body according to claim 11, characterized in that, Along the depth direction of the first receiving cavity, the distance h3 between the cutting component and the surface satisfies: 3mm≤h3≤6mm.

13. The printer body according to claim 1, characterized in that, The printer body has a first surface, a second surface, and a third surface parallel to the axis of the drive shaft. The first surface and the second surface are disposed opposite each other, the third surface is disposed between the first surface and the second surface, the first paper outlet is disposed on the third surface, and the first surface is closer to the first paper outlet than the second surface.

14. The printer body according to claim 13, characterized in that, The first paper feeding channel further includes a second paper feeding segment extending along the paper feeding direction. The second paper feeding segment is disposed adjacent to the first paper output port. The second paper feeding segment includes a first paper guiding surface adjacent to the second surface. In the direction from the first paper inlet to the first paper output port, the first paper guiding surface extends at an angle relative to the second surface in a gradually approaching trend.

15. The printer body according to claim 14, characterized in that, The acute angle β between the first paper guide surface and the direction from the first paper inlet to the first paper outlet satisfies: 30°≤β≤60°.

16. The printer body according to claim 14, characterized in that, The second paper feeding segment is connected to the first paper feeding segment, and the distance h4 between the junction of the second paper feeding segment and the first paper feeding segment and the cutting component in the first paper feeding direction at the cutting position satisfies: 4mm≤h4≤8mm.

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