Printing consumable box

Abstract

The utility model provides a printing consumable box, and belongs to the technical field of printers. The problem that an existing printing consumable box is inconvenient to assemble is solved. The first cover body, the second cover body, the supply shaft and the recovery shaft are arranged on the box body, a first cavity is formed in the side, facing the box body, of the first cover body, a second cavity is formed in the side, facing the box body, of the second cover body, the supply shaft is installed on the first cavity / box body, the recovery shaft is installed on the second cavity / box body, and a thermal transfer ribbon led out by the supply shaft is wound on the recovery shaft. According to the utility model, a semi-finished product type production mode is adopted, so that not only is the assembly convenient, but also the current production capacity can be utilized to the greatest extent to carry out optimized, rapid and efficient production.

Description

Technical Field

[0001] This utility model belongs to the field of printer technology and relates to a printing consumable box. Background Technology

[0002] A label printer is a device that prints information on labels. During printing, the print head on the printer presses against the printing roller, and the label and ribbon pass between the print head and the printing roller. The mechanism drives the printing roller to rotate, thereby realizing the printing process.

[0003] For example, a Chinese patent discloses a printing consumable box [application publication number CN119175951A], which includes a shell, paper tape, core, ribbon, supply shaft and recycling shaft. The shell includes a first box body, a connecting arm and a second box body. The first box body is provided with a first cavity and an outlet, and the second box body is provided with a second cavity and an inlet. A paper feeding channel is formed at the connecting arm. The first cavity, outlet, paper feeding channel, inlet and second cavity are connected in sequence. The core and supply shaft are located in the first cavity, and the recycling shaft is located in the second cavity. The paper tape is wound around the core, and the ribbon is wound between the supply shaft and the recycling shaft.

[0004] The aforementioned consumable box is an integral assembly. Different width labels require different production lines. The different requirements for different width labels lead to inconsistent production rhythms on the production lines, resulting in a waste of production resources. All labels of different widths use the same specification of roll core. The labels need to be limited internally with filler or structural components to accommodate different widths, which will lead to a waste of filler materials and is also not environmentally friendly. In the production process, filler or structural components must be placed into the outer shell first, and then labels of different widths are placed in. The operation process is cumbersome and involves many actions, making it impossible to achieve more efficient production. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a convenient printing consumable box.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A printing consumable box includes a box body, a first cover, a second cover, a supply shaft, and a recycling shaft disposed on the box body. The first cover has a first cavity on the side facing the box body, and the second cover has a second cavity on the side facing the box body. The supply shaft is mounted on the first cavity / box body, and the recycling shaft is mounted on the second cavity / box body. A carbon ribbon led out from the supply shaft is wound around the recycling shaft.

[0008] In the aforementioned printing consumable box, a third cover is also provided on the box body, and a third cavity is provided on the side of the third cover facing the box body, and the roll core is installed in the third cavity.

[0009] The supply shaft is located at the supply end, and the recovery shaft is located at the recovery end. The supply and recovery shafts can be installed in the following ways: 1. The supply shaft is installed in the first cavity, and the recovery shaft is installed in the second cavity; 2. The supply shaft is installed in the first cavity, and the recovery shaft is installed on the housing; 3. The supply shaft is installed on the housing, and the recovery shaft is installed in the second cavity; 4. The supply shaft is installed on the housing, and the recovery shaft is installed on the housing. Installation can be either snap-in or insert-in.

[0010] The first cover, supply shaft, second cover, and recovery shaft constitute semi-finished product one. This semi-finished product one, when assembled onto the box body, constitutes semi-finished product two. Independent product lines and packaging can be established based on semi-finished product one and semi-finished product two, maximizing the utilization of current production capacity for optimized, rapid, and efficient production, resulting in good product integrity. The first cover and second cover can be independent covers or integrated into one unit. The following description details the integration of the first cover and second cover into one unit.

[0011] In existing technologies, the first / second cover is joined together, creating a seam in the middle. This seam causes the ribbon passing through the seam to wrinkle, thus affecting print quality. However, the first / second cover of this printing consumable box is injection molded using an upper and lower mold, eliminating the seam and preventing any impact on the ribbon. The ribbon will not wrinkle, thus maintaining print quality.

[0012] In the above-mentioned printing consumable box, one end of the first cavity is provided with a first mounting groove, and one end of the supply shaft is rotatably fitted in the first mounting groove; the other end of the first cavity is provided with a second mounting groove, and the other end of the supply shaft is rotatably fitted in the second mounting groove.

[0013] In the above-mentioned printing consumable box, a positioning post is provided in the first mounting groove, and one end of the damping spring located in the supply shaft is connected to the positioning post; the second mounting groove has a second rotating engagement section and a second guide section, and a second protrusion is provided at the intersection of the second rotating engagement section and the second guide section, and the distance from the second protrusion to the other side of the second rotating engagement section is less than the outer diameter of the supply shaft.

[0014] The damping spring is coaxially fitted inside the supply shaft. One end of the damping spring has a slotted rod, and a slotted groove is provided on the positioning post. The positioning post extends into the damping spring and is connected to the damping spring through the slotted rod and the slotted groove. The first mounting groove has a first rotating engagement section and a first guide section. The box body is provided with a first filling section that forms a complete circle with the first rotating engagement section. When the first cover is connected to the box body, one end of the supply shaft is rotatably engaged within the complete circle formed by the first filling section and the first rotating engagement section.

[0015] The second guide section guides the supply shaft to the second rotating engagement section, which is arc-shaped and rotatably engages with the outer surface of the supply shaft. A second protrusion prevents the supply shaft from dislodging from its rotatable engagement with the second rotating engagement section. The housing has a second filling section that forms a complete circle with the second rotating engagement section, and its other end rotatably engages within the complete circle formed by the second filling section and the second rotating engagement section. Axial limiting is achieved by a retaining edge provided on the supply shaft.

[0016] During installation, first insert the damping spring into the supply shaft, then slide the supply shaft onto the positioning pin, and connect the damping spring to the positioning pin. Next, guide the other end of the supply shaft via the second guide section, allowing it to pass over the second protrusion and engage with the second rotating engagement section. The assembled supply shaft then rotates into the first cavity, forming a semi-finished product. The damping spring provides resistance and recovery force, achieving the function of recovering and increasing the resistance of the carbon belt, keeping the carbon belt constantly taut, resulting in better performance, lower cost, and higher efficiency.

[0017] The spring can be directly connected to the positioning post, or a connecting piece can be provided on the spring to connect it to the first cover.

[0018] In existing technology, resistance springs or foam are directly added to the end faces of both ends of the supply shaft to provide resistance to the rotation of the supply shaft and prevent the ribbon from loosening. However, this method cannot achieve ribbon recycling, and the ribbon may become loose during print retraction. If a recycling structure is placed on the printer, it will result in a complex printer structure and high costs.

[0019] In the aforementioned printing consumable box, one end of the second cavity is provided with a third mounting groove, and one end of the recycling shaft is rotatably fitted in the third mounting groove; the other end of the second cavity is provided with a fourth mounting groove, and one end of the recycling shaft is rotatably fitted in the fourth mounting groove.

[0020] In the aforementioned printing consumable box, the third mounting slot has a third rotating engagement section and a third guide section, and a third protrusion is provided at the intersection of the third rotating engagement section and the third guide section. The distance from the third protrusion to the other side of the third rotating engagement section is less than the outer diameter of the retrieval shaft. The fourth mounting slot has a fourth rotating engagement section and a fourth guide section, and a fourth protrusion is provided at the intersection of the fourth rotating engagement section and the fourth guide section. The distance from the fourth protrusion to the other side of the fourth rotating engagement section is less than the outer diameter of the retrieval shaft.

[0021] One end of the retrieval shaft is radially limited within the third rotating engagement section by a third protrusion, and the other end is radially limited within the fourth rotating engagement section by a fourth protrusion. The box body also has a third filling section forming a complete circle with the third rotating engagement section and a fourth filling section forming a complete circle with the fourth rotating engagement section. When the second cover is connected to the box body, one end of the retrieval shaft rotates within the complete circle formed by the third filling section and the third rotating engagement section, and the other end rotates within the complete circle formed by the fourth filling section and the fourth rotating engagement section. Axial limiting can be achieved through a retaining edge provided on the retrieval shaft.

[0022] The third and fourth protrusions serve to pre-install the recovery shaft, preventing it from coming out of the third and fourth mounting slots and thus improving assembly efficiency. The third and fourth protrusions are located on different sides of the recovery shaft.

[0023] Alternatively, the first, second, third, and fourth mounting slots can be replaced with round holes. During installation, one end of the supply shaft is passed through the first round hole, and the other end is passed through the second round hole. One end of the recovery shaft is passed through the third round hole, and the other end is passed through the fourth round hole.

[0024] In the aforementioned printing consumable box, each end of the box body is provided with a plate-shaped first connecting arm, and a mounting plate is provided between the two first connecting arms. The first cover is mounted on the box body, and the second cover is mounted on the mounting plate.

[0025] A paper feeding channel and a printing channel are provided between the mounting plate and the box body. The carbon ribbon led out by the supply shaft passes through the printing channel and then wraps around the take-up shaft. The paper tape led out by the core adheres to the carbon ribbon at the printing channel and then extends out through the paper feeding channel.

[0026] In the aforementioned printing consumable box, two second connecting arms are provided between the first cover and the second cover, respectively located at both ends of the first cover. When the whole consisting of the first cover and the second cover is connected to the box body, one of the second connecting arms is attached to one of the first connecting arms, and the other second connecting arm is attached to the other first connecting arm.

[0027] When the entire assembly consisting of the first and second covers is connected to the box body, one of the first connecting arms is located on one side of and fits against one of the second connecting arms, and the other first connecting arm is located on one side of and fits against the other second connecting arm, forming a double-layer structure that increases structural strength. In the event of a drop, the double-layer structure is not easily broken, and even if one of the first or second connecting arms breaks, the second or first connecting arm still serves to connect them.

[0028] In the above-mentioned printing consumable box, the two ends of the second cover are respectively provided with two protrusions extending along the length of the recycling axis. The two protrusions are coaxially arranged. The mounting plate is provided with two slots that correspond one-to-one with the protrusions. The protrusions are rotatably engaged in the corresponding slots, and the first cover is engaged with the box body.

[0029] During installation, insert the protruding post into the slot, then rotate the whole consisting of the first cover and the second cover, and make the first cover snap into the box body, making the connection convenient and reliable.

[0030] To facilitate the engagement of the first cover and the box body, a first buckle is provided on the second connecting arm, and a first locking hole corresponding to the first buckle is provided on the first connecting arm. When the entire assembly consisting of the first and second covers is connected to the box body, the first buckle engages in the first locking hole. Simultaneously, a spring clip is formed on the second connecting arm through a perforation, and a second buckle is provided on the spring clip. A second locking hole corresponding to the second buckle is provided on the first connecting arm. When the entire assembly consisting of the first and second covers is connected to the box body, the second buckle engages in the second locking hole. A third buckle is provided on the outer connecting wall. When the entire assembly consisting of the first and second covers is connected to the box body, the third buckle presses against the side of the second connecting arm away from the box body.

[0031] In addition to the above-mentioned snap-fit ​​method, adhesive / hot-melt connection methods can also be used to connect the first cover to the box and the second cover to the box.

[0032] To facilitate the entry of the second connecting arm, guide ramps are provided on both the first connecting arm and the third buckle. The box body, the first cover and the second cover are all made of plastic and have a certain degree of elastic deformation. They can deform under external force to facilitate the action of each buckle.

[0033] A fourth buckle is provided on the first cover, and a fourth locking hole is provided on the box body corresponding to the fourth buckle. When the whole consisting of the first cover and the second cover is connected to the box body, the fourth buckle is locked in the fourth locking hole.

[0034] In the aforementioned printing consumable box, the mounting plate has a retaining edge and a limiting piece on the side facing the second cover. The limiting piece is located on the side of the retaining edge close to the box body. When the second cover is closed with the mounting plate, the retaining edge and the limiting piece limit the edge of the second cover.

[0035] The retaining edge extends along the length of the second cover edge, supporting and limiting the edge of the second cover to prevent relative displacement between the two when pressed. The limiting piece consists of multiple pieces that extend to the inner side of the second cover edge. When the edge of the second cover is pressed inward, the limiting piece blocks the inward collapse.

[0036] At the same time, it prevents the second cover from detaching from the box body after a fall.

[0037] In the aforementioned printing consumable box, a limiting protrusion is provided on the edge, and the outer side of the edge of the second cover has a limiting recess that cooperates with the limiting protrusion. When the second cover is closed with the mounting plate, the edge of the second cover is limited between the limiting protrusion and the limiting piece.

[0038] In the above-mentioned printing consumable box, the inner side of the third cover is provided with two opposing baffles, the above-mentioned core is rotatably disposed between the two baffles, and the box body is provided with a plurality of limiting grooves for limiting the free ends of the baffles, the plurality of limiting grooves being distributed along the length direction of the core.

[0039] The box body has a receiving cavity for accommodating the third cover. At both ends of the receiving cavity are guide grooves extending along the installation direction of the third cover. The third cover has a guide portion that slides with the guide groove. During installation, the guide groove guides the guide portion, effectively ensuring the position of the third cover within the receiving cavity and improving installation accuracy. To enhance the structural strength of the box body, multiple protrusions are provided at both ends of the receiving cavity, with the guide groove located between two adjacent protrusions.

[0040] The baffle, with its single-walled thick structure, has high deformability, making it easier to insert the core. When the third cover is fastened to the box body, the free end of the baffle is located in the limiting groove, preventing deformation and thus increasing its strength. This ensures that the core and paper tape located between the two baffles will not wobble, thereby improving printing accuracy.

[0041] Each limiting groove has three slots. Under the premise of ensuring that the core can be put in smoothly, when the baffle is limited to the slots of different limiting grooves, the baffle will undergo slight deformation to ensure that the core will not shake.

[0042] When assembling the core and the third cover, paper tapes of different widths are assembled by different production lines. The distance between the two baffles inside the third cover on the corresponding production line is equal to the width of the paper tape to be assembled on that production line.

[0043] In the aforementioned printing consumable box, the paper output side of the third cover has two paper limiting plates, the distance between the two paper limiting plates is equal to the width of the paper strip, and the box body has a clearance opening corresponding to the paper limiting plates. When the third cover is closed with the box body, the paper limiting plates are inserted into the corresponding clearance opening.

[0044] The distance between the two paper limit pieces is equal to the width of the paper strip inside the third cover. Multiple clearance openings are set on the box body, and these clearance openings are arranged sequentially along the length of the core shaft, so that the paper limit pieces with different spacings can be positioned.

[0045] To achieve the snap-fit ​​connection between the third cover and the box body, at least one fifth buckle is provided at each end of the third cover, and a fifth locking hole corresponding to the fifth buckle is provided at each end of the receiving cavity. When the third cover and the box body are closed, the fifth buckle is engaged in the fifth locking hole. The engagement direction of the fifth buckle and the fifth locking hole extends along the length of the guide groove.

[0046] In the aforementioned printing consumable box, the third cover has two intermittently arranged first protrusions on the side away from the paper output side, and a second protrusion is provided between the two first protrusions, which is offset from the first protrusions. Both the first and second protrusions extend along the length direction of the core. The inner side of the box body away from the paper output side is provided with two first recesses corresponding to the first protrusions, and the outer side of the box body away from the paper output side is provided with a second recess corresponding to the second protrusion. When the third cover is closed with the box body, the first protrusion extends into the first recess, and the second protrusion extends into the second recess.

[0047] Pressing the side of the second cover away from the paper output side / the side of the box away from the paper output side inward will not cause the second cover / box to collapse, thus improving stability.

[0048] In the aforementioned printing consumable box, the paper output side of the third cover is also provided with resistance foam extending along the width direction of the paper strip. The resistance foam presses the paper strip onto the box body to increase the resistance to the paper strip, prevent the paper strip from retreating to the inside of the third cover due to vibration during transportation, and can also effectively avoid excessive paper output.

[0049] Compared with existing technologies, this printing consumable box has the following advantages:

[0050] The first cover, the supply shaft, the second cover, and the recycling shaft can constitute semi-finished product one. After semi-finished product one is installed on the box, it can constitute semi-finished product two. Based on semi-finished product one and semi-finished product two, an independent product line can be established and packaged. It can make the most of the current production capacity, carry out optimized, fast and efficient production, and the product has good integrity. Moreover, it is easy to assemble, the connection between each component is stable, and the overall structural strength is high. Attached Figure Description

[0051] Figure 1 This is a structural diagram of a printing consumables box.

[0052] Figure 2 This is a cross-sectional view of the printing supplies box.

[0053] Figure 3 This is a schematic diagram of the printing consumable box when the first cover and the second cover are in the unfolded state.

[0054] Figure 4 This is a structural diagram of the first cover and the second cover.

[0055] Figure 5 yes Figure 4 A schematic diagram of the structure of the supply shaft and the recovery shaft in the middle section.

[0056] Figure 6 This is a partial structural diagram of the supply shaft.

[0057] Figure 7 This is another structural schematic diagram of the first cover and the second cover.

[0058] Figure 8 yes Figure 7 A schematic diagram of the structure of the supply shaft and the recovery shaft in the middle section.

[0059] Figure 9 This is an enlarged schematic diagram of the limiting protrusion and the limiting recess.

[0060] Figure 10 This is a structural diagram showing the first cover, the second cover, and the box body when separated.

[0061] Figure 11 This is another structural diagram of the printing consumable box when the first and second covers are in the unfolded state.

[0062] Figure 12 This is a structural diagram of the box.

[0063] Figure 13 This is a schematic diagram showing the separation of the box body and the third cover.

[0064] Figure 14 This is an enlarged schematic diagram of the first convex strip, the second convex strip, the first recess, and the second recess.

[0065] Figure 15 This is a schematic diagram of the structure of the third cover used to hold the first-size paper tape.

[0066] Figure 16 This is a schematic diagram of the structure of the third cover used to hold the second-sized paper tape.

[0067] Figure 17 This is a schematic diagram of the structure of the third cover used to hold the third-size paper tape.

[0068] Figure 18 This is a schematic diagram showing the connection between the spring plate and the recovery shaft.

[0069] Figure 19 This is a cross-sectional view of the third cover with baffles of different spacing.

[0070] In the diagram, 1. Box body; 2. First cover; 3. Second cover; 4. Third cover; 5. Supply shaft; 6. Recycling shaft; 7. First mounting groove; 8. Positioning post; 9. Damping spring; 10. Second mounting groove; 11. Second protrusion; 12. Third mounting groove; 13. Third protrusion; 14. Fourth mounting groove; 15. Fourth protrusion; 16. First connecting arm; 17. Mounting plate; 18. Second connecting arm; 19. Protruding post; 20. Slot; 21. Edge retainer; 22. Limiting piece; 23. Limiting protrusion; 24. Limiting recess; 25. Baffle; 26. Limiting groove; 27. Paper limiting piece; 28. Clearance opening; 29. 30. First protrusion; 31. Second protrusion; 32. First recess; 33. Second recess; 34. Straight bar; 35. Straight groove; 36. First filling section; 37. Second filling section; 38. Third filling section; 39. Fourth filling section; 40. First buckle; 41. First buckle hole; 42. Second buckle hole; 43. Third buckle; 44. Guide slope; 45. Fourth buckle; 46. Fourth buckle hole; 47. Guide groove; 48. Guide part; 49. Fifth buckle; 50. Fifth buckle hole; 51. Paper tape; 52. Resistance foam; 53. Driven wheel; 54. Spring sheet; 55. Support cylinder. Detailed Implementation

[0071] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0072] like Figure 1-3 The printing consumable box shown includes a box body 1, a first cover 2, a second cover 3, a third cover 4 disposed on the box body 1, a supply shaft 5, a retraction shaft 6, and a printing core. Figure 10-12 As shown, plate-shaped first connecting arms 16 are provided at both ends of the box body 1, and a mounting plate 17 is provided between the two first connecting arms 16. The first cover 2 is installed on the box body 1, and the second cover 3 is installed on the mounting plate 17. A paper feeding channel and a printing channel are formed between the mounting plate 17 and the box body 2.

[0073] like Figure 4 , 5As shown in Figures 7 and 8, two second connecting arms 18 are provided between the first cover 2 and the second cover 3, respectively located at both ends of the first cover 2. When the whole consisting of the first cover 2 and the second cover 3 is connected to the box body 1, one of the second connecting arms 18 is attached to one of the first connecting arms 16, and the other second connecting arm 18 is attached to the other first connecting arm 16. The first connecting arm 16 can be located inside the two second connecting arms 18, or the second connecting arm 18 can be located inside the two first connecting arms 16. The first connecting arm 16 and the second connecting arm 18 form a double-layer structure, which increases the structural strength. In the event of a drop, the double-layer structure is not easily broken, and even if one of the first connecting arms 16 / second connecting arm 18 breaks, the second connecting arm 18 / first connecting arm 16 still serves as a connection.

[0074] A first cavity is provided on the side of the first cover 2 facing the box 1, and a second cavity is provided on the side of the second cover 3 facing the box 1. The supply shaft 5 is installed on the first cavity, and the recycling shaft 6 is installed on the second cavity. The carbon ribbon led out from the supply shaft 5 is wound onto the recycling shaft 6.

[0075] The supply shaft 5 and the first cover 2 constitute semi-finished product one, the recycling shaft 6 and the second cover 3 constitute semi-finished product two, and the core with paper tape 51 wound around it and the third cover 4 constitute semi-finished product three. The above three semi-finished products can be pre-assembled on different production lines. According to the order requirements, semi-finished product one, semi-finished product two and semi-finished product three are assembled with box 1.

[0076] In some other embodiments, the supply shaft 5 can be directly installed on the box body 1, and the recycling shaft 6 can also be directly installed on the box body 1. The supply shaft 5, the recycling shaft 6 and the box body 1 constitute semi-finished product one, and the core with paper tape 51 wound around it and the third cover 4 constitute semi-finished product two. According to the order requirements, the first cover 2, the second cover 3, semi-finished product one and semi-finished product two are then assembled.

[0077] This embodiment adopts a semi-finished product production method, which can make the most of the current production capacity and carry out optimized, fast and efficient production.

[0078] like Figure 4 and Figure 7 As shown, the supply shaft 5 and the recovery shaft 6 are parallel. Figure 5 and Figure 6 As shown, a first mounting groove 7 is provided at one end of the first cavity, and a positioning post 8 is provided in the first mounting groove 7. One end of the damping spring 9, which is located in the supply shaft 5, is connected to the positioning post 8. In this embodiment, the damping spring 9 is coaxially and tightly fitted inside the supply shaft 5. One end of the damping spring 9 has a straight rod 33, and a slot 34 is provided on the positioning post 8. The positioning post 8 extends into the damping spring 9 and is connected to the damping spring 9 through the straight rod 33 and the slot 34, which facilitates assembly. The damping spring 9 provides resistance and recovery force, keeping the carbon belt in a taut state at all times.

[0079] The first mounting groove 7 has a first rotating engagement section and a first guide section, such as Figure 11 As shown, the box body 1 is provided with a first filling section 35 that forms a complete circle with the first rotating fitting section. When the first cover 2 is connected to the box body 1, one end of the supply shaft 5 is rotatably fitted within the complete circle formed by the first filling section 35 and the first rotating fitting section.

[0080] like Figure 8 As shown, the other end of the first cavity is provided with a second mounting groove 10. The second mounting groove 10 has a second rotating engagement section and a second guide section. A second protrusion 11 is provided at the intersection of the second rotating engagement section and the second guide section. The distance from the second protrusion 11 to the other side of the second rotating engagement section is less than the outer diameter of the supply shaft 5.

[0081] The second guide section is used to guide the supply shaft 5 to the second rotating engagement section. The second rotating engagement section is arc-shaped and rotates with the outer surface of the supply shaft 5. The second protrusion 11 can prevent the supply shaft 5, which rotates with the second rotating engagement section, from coming out.

[0082] like Figure 11 As shown, the box body 1 is provided with a second filling section 36 that forms a complete circle with the second rotating fitting section. Its other end is rotatably fitted within the complete circle formed by the second filling section 36 and the second rotating fitting section. Axial limiting can be achieved by a stop provided on the supply shaft 5.

[0083] During installation, first install the damping spring 9 into the supply shaft 5, then put the supply shaft 5 onto the positioning post 8, and connect the damping spring 9 to the positioning post 8. Then guide the other end of the supply shaft 5 through the second guide section, so that the other end of the supply shaft 5 passes the second protrusion 11 and engages with the second rotating engagement section. The assembled supply shaft 5 is then rotated and engaged in the first cavity to form a semi-finished product.

[0084] like Figure 5 As shown, one end of the second cavity is provided with a third mounting groove 12. The third mounting groove 12 has a third rotating engagement section and a third guide section. A third protrusion 13 is provided at the intersection of the third rotating engagement section and the third guide section. The distance from the third protrusion 13 to the other side of the third rotating engagement section is less than the outer diameter of the recovery shaft 6. Figure 8 As shown, the other end of the second cavity is provided with a fourth mounting groove 14. The fourth mounting groove 14 has a fourth rotating engagement section and a fourth guide section. A fourth protrusion 15 is provided at the intersection of the fourth rotating engagement section and the fourth guide section. The distance from the fourth protrusion 15 to the other side of the fourth rotating engagement section is less than the outer diameter of the recovery shaft 6.

[0085] One end of the recovery shaft 6 is radially limited within the third rotating engagement section by the third protrusion 13, and the other end is radially limited within the fourth rotating engagement section by the fourth protrusion 15, as follows: Figure 11As shown, the box body 1 is also provided with a third filling section 37 that forms a complete circle with the third rotating fitting section and a fourth filling section 38 that forms a complete circle with the fourth rotating fitting section. When the second cover 3 is connected to the box body 1, one end of the retrieval shaft 6 is rotatably fitted within the complete circle formed by the third filling section 37 and the third rotating fitting section, and the other end is rotatably fitted within the complete circle formed by the fourth filling section 38 and the fourth rotating fitting section. Axial limiting can be achieved by a retaining edge provided on the retrieval shaft 6. The third protrusion 13 and the fourth protrusion 15 enable pre-installation of the retrieval shaft 6 to prevent the installed retrieval shaft 6 from falling off. To ensure that the retrieval shaft 6 is subjected to balanced force, the third protrusion 13 and the fourth protrusion 15 are located on different sides of the retrieval shaft 6.

[0086] In this embodiment, the connection between the whole consisting of the first cover 2 and the second cover 3 and the box body 1 is a rotation followed by a snap-fit, as shown in the following specific structure: Figure 10 and Figure 11 As shown, the second cover 3 has two protrusions 19 extending along the length of the recycling shaft 6 at both ends. The two protrusions 19 are coaxially arranged. The mounting plate 17 has two C-shaped slots 20 that correspond to the protrusions 19. The protrusions 19 are rotatably engaged in the corresponding slots 20, and the first cover 2 is engaged with the box 1.

[0087] During installation, insert the protruding post 19 into the slot 20, then rotate the whole consisting of the first cover 2 and the second cover 3, and make the first cover 2 snap into the box 1, which is convenient and reliable.

[0088] A driven wheel 53 is coaxially mounted at one end of the recycling shaft 6 and meshes with the drive wheel on the printer. When the drive wheel rotates, it will drive the driven wheel 53 to rotate, thereby realizing the rotation of the recycling shaft 6.

[0089] To prevent the driven wheel 53 from rotating, such as Figure 3 As shown, a spring plate 54 is provided on the second cover. The spring plate 54 has a connecting part 55. When the second cover 3 is closed with the box 1, the connecting part 55 of the spring plate 54 is pressed between the second cover 3 and the box 1. The main body of the spring plate 54 extends into the tooth groove of the driven wheel 53. When the driven wheel 53 rotates under the action of the driving wheel, the spring plate 54 does not block it. When the driving wheel stops rotating, the spring plate 54 can restrict the rotation of the driven wheel 53, thereby preventing the carbon belt from rotating.

[0090] To facilitate the engagement of the first cover 2 and the box body 1, a first buckle 39 is provided on the second connecting arm 18, and a first locking hole 40 corresponding to the first buckle 39 is provided on the first connecting arm 16. When the entire assembly consisting of the first cover 2 and the second cover 3 is connected to the box body 1, the first buckle 39 is engaged in the first locking hole 40. Simultaneously, a spring piece is formed on the second connecting arm 18 through a perforation, and a second buckle 41 is provided on the spring piece. A second locking hole 42 corresponding to the second buckle 41 is provided on the first connecting arm 16. When the entire assembly consisting of the first cover 2 and the second cover 3 is connected to the box body 1, the second buckle 41 is engaged in the second locking hole 42. A third buckle 43 is provided on the outer connecting wall. When the entire assembly consisting of the first cover 2 and the second cover 3 is connected to the box body 1, the third buckle 43 presses against the side of the second connecting arm 18 away from the box body 1.

[0091] To facilitate the entry of the second connecting arm 18, guide slopes 44 are provided on both the first connecting arm 16 and the third buckle 43. The box body 1, the first cover and the second cover body 3 are all made of plastic and have a certain degree of elastic deformation. They can deform under external force so that each buckle can move.

[0092] A fourth buckle 45 is provided on the first cover 2, and a fourth buckle hole 46 is provided on the box body 1 corresponding to the fourth buckle 45. When the whole consisting of the first cover 2 and the second cover 3 is connected to the box body 1, the fourth buckle 45 is engaged in the fourth buckle hole 46.

[0093] In some other embodiments, the whole consisting of the first cover 2 and the second cover 3 can be snapped together with the box 1 and the connecting plate. Under the premise that the snap-connection structure between the second cover 3 and the box 1 remains unchanged, it is only necessary to set a buckle on the second cover 3 and a snap hole on the connecting plate to achieve this.

[0094] To avoid collapse when pressed, such as Figure 9-10 As shown, the mounting plate 17 has a retaining edge 21 and a limiting piece 22 on the side facing the second cover 3. The limiting piece 22 is located on the side of the retaining edge 21 closer to the box body 1. When the second cover 3 is closed with the mounting plate 17, the retaining edge 21 and the limiting piece 22 limit the edge of the second cover 3. The retaining edge 21 extends along the length of the edge of the second cover 3, supporting and limiting the edge of the second cover 3 to prevent relative displacement between the two when pressed. The limiting piece 22 consists of multiple pieces and extends to the inner side of the edge of the second cover 3. When the edge of the second cover 3 is pressed inward, the limiting piece 22 blocks the inward collapse.

[0095] like Figure 9-10As shown, a limiting protrusion 23 is provided on the edge 21, and a limiting recess 24 that cooperates with the limiting protrusion 23 is provided on the outer side of the edge of the second cover 3. When the second cover 3 is closed with the mounting plate 17, the edge of the second cover 3 is limited between the limiting protrusion 23 and the limiting piece 22.

[0096] like Figure 12 and Figure 13 As shown, the box body 1 has a receiving cavity for accommodating the third cover 4, and the third cover 4 and the core are located within the receiving cavity. Figure 13 As shown, the inner side of the third cover 4 is provided with two opposing baffles 25, and the core is rotatably positioned between the two baffles 25, as shown. Figure 12 and Figure 13 As shown, the box body 1 is provided with several limiting grooves 26 for limiting the free end of the baffle 25, and the limiting grooves 26 are distributed along the length direction of the core. Figure 19 As shown, the free end of the baffle 26 extends into the corresponding limiting groove 26, which limits the position of the baffle 25. This is to support and limit the movement of the core, as... Figure 19 As shown, a support cylinder 55 is provided on the opposite side of the baffle 26.

[0097] like Figure 12 and Figure 13 As shown, guide grooves 47 extending along the installation direction of the third cover 4 are provided at both ends of the receiving cavity. The third cover 4 has a guide part 48 that slides with the guide groove 47. When the third cover 4 is installed, the guide groove 47 can guide the guide part 48, effectively ensuring the position of the third cover 4 in the receiving cavity and improving the installation accuracy. In order to improve the structural strength of the box body 1, multiple protrusions are provided at both ends of the receiving cavity, and the guide groove 47 is located between two adjacent protrusions.

[0098] When assembling the core and the third cover 4, various models of the third cover 4 are used to correspond to paper tapes 51 of different widths, such as... Figure 15-17 As shown, the width of the paper tape 51 gradually increases from narrow to wide, and the distance between the two baffles 25 corresponding to this also gradually increases. Paper tapes 51 of different widths are assembled by different production lines, and the distance between the two baffles 25 inside the third cover 4 on the corresponding production line is equal to the width of the paper tape 51 to be assembled on that production line.

[0099] like Figure 15-17 As shown, the paper output side of the third cover 4 has two paper limiting pieces 27, the distance between the two paper limiting pieces 27 being equal to the width of the paper strip 51. The box body 1 has a clearance opening 28 corresponding to the paper limiting pieces 27. When the third cover 4 is closed with the box body 1, the paper limiting pieces 27 are inserted into the corresponding clearance opening 28. The distance between the two paper limiting pieces 27 is equal to the width of the paper strip 51 inside the third cover 4, as shown. Figure 12 and Figure 13As shown, multiple clearance openings 28 are provided on the box body 1. The multiple clearance openings 28 are arranged sequentially along the length direction of the core shaft, so that they can position the paper sheets 27 with different spacing.

[0100] like Figure 2 As shown, a resistance foam 52 extending along the width direction of the paper strip is also provided on the paper output side of the third cover 4. The resistance foam 52 presses the paper strip onto the box body 1 to increase the resistance to the paper strip.

[0101] To achieve the snap-fit ​​connection between the third cover 4 and the box 1, such as Figure 13 As shown, at least one fifth buckle 49 is provided at each end of the third cover 4, and a fifth locking hole 50 corresponding to the fifth buckle 49 is provided at each end of the receiving cavity. When the third cover 4 is closed with the box 1, the fifth buckle 49 is engaged in the fifth locking hole 50. The engagement direction of the fifth buckle 49 and the fifth locking hole 50 extends along the length direction of the guide groove 47.

[0102] like Figure 13 and Figure 14 As shown, the third cover 4 has two intermittently arranged first protrusions 29 on its side away from the paper output side. Between the two first protrusions 29 is a second protrusion 30 offset from the first protrusions 29. Both the first protrusions 29 and the second protrusions 30 extend along the length of the core. The inner side of the box body 1 away from the paper output side has two first recesses 31 corresponding to the first protrusions 29. The outer side of the box body 1 away from the paper output side has a second recess 32 corresponding to the second protrusion 30. When the third cover 4 is closed with the box body 1, the first protrusions 29 extend into the first recesses 31, and the second protrusions 30 extend into the second recesses 32. Pressing inward on the side of the second cover 3 away from the paper output side / the side of the box body 1 away from the paper output side will not cause the second cover 3 / box body 1 to collapse inward, thus improving stability.

[0103] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A print consumables cartridge, characterized by, The utility model provides a carbon tape supply and recovery device, which comprises a box body (1), a first cover (2) arranged on the box body (1), a second cover (3), a supply shaft (5) and a recovery shaft (6), the first cover (2) is provided with a first cavity on the side facing the box body (1), the second cover (3) is provided with a second cavity on the side facing the box body (1), the supply shaft (5) is installed on the first cavity / box body (1), the recovery shaft (6) is installed on the second cavity / box body (1), and the carbon tape led out by the supply shaft (5) is arranged on the recovery shaft (6).

2. The print consumables cartridge of claim 1, wherein, The box body (1) is further provided with a third cover (4), the third cover (4) is provided with a third cavity on the side facing the box body (1), and a winding core is installed in the third cavity.

3. The print consumables cartridge of claim 1, wherein, One end of the first cavity is provided with a first mounting groove (7), and one end of the supply shaft (5) is rotatably fitted in the first mounting groove (7); the other end of the first cavity is provided with a second mounting groove (10), and the other end of the supply shaft (5) is rotatably fitted in the second mounting groove (10).

4. The print consumables cartridge of claim 1, wherein, One end of the second cavity is provided with a third mounting groove (12), and one end of the recovery shaft (6) is rotatably fitted in the third mounting groove (12); the other end of the second cavity is provided with a fourth mounting groove (14), and one end of the recovery shaft (6) is rotatably fitted in the fourth mounting groove (14).

5. The print consumables cartridge of claim 2, wherein, Both ends of the box body (1) are respectively provided with first connecting arms (16) in the form of plates, and a mounting plate (17) is arranged between the two first connecting arms (16), the first cover (2) is installed on the box body (1), and the second cover (3) is installed on the mounting plate (17).

6. The print consumables cartridge of claim 5, wherein, Second connecting arms (18) are arranged between the first cover (2) and the second cover (3) and located at both ends of the first cover (2) respectively, when the whole formed by the first cover (2) and the second cover (3) is connected with the box body (1), one of the second connecting arms (18) is attached to one of the first connecting arms (16), and the other second connecting arm (18) is attached to the other first connecting arm (16).

7. The print consumables cartridge of claim 5, wherein, The side of the mounting plate (17) facing the second cover (3) is provided with a stop edge (21) and a limiting piece (22), the limiting piece (22) is located on the side of the stop edge (21) close to the box body (1), and when the second cover (3) is attached to the mounting plate (17), the stop edge (21) and the limiting piece (22) limit the edge of the second cover (3).

8. The print consumables cartridge of claim 2, wherein, The inner side of the third cover (4) is provided with two oppositely arranged baffles (25), the winding core is rotatably arranged between the two baffles (25), the box body (1) is provided with a plurality of limiting grooves (26) for limiting the free ends of the baffles (25), and the plurality of limiting grooves (26) are distributed along the length direction of the winding core.

9. The print consumables cartridge of claim 2, wherein, The paper outlet side of the third cover (4) is provided with two paper limiting pieces (27), the distance between the two paper limiting pieces (27) is equal to the width of the paper tape, the box body (1) is provided with a gap (28) corresponding to the paper limiting piece (27), and when the third cover (4) is attached to the box body (1), the paper limiting piece (27) is inserted into the corresponding gap (28).

10. The print consumables cartridge of claim 7, wherein, The baffle (21) is provided with a limiting protrusion (23), the outer side of the edge of the second cover body (3) is provided with a limiting pit (24) matched with the limiting protrusion (23), when the second cover body (3) is covered with the mounting plate (17), the edge of the second cover body (3) is limited between the limiting protrusion (23) and the limiting sheet (22); The side edge of the third cover body (4) away from the paper outlet side is provided with two first protrusions (29) arranged intermittently, the first protrusions (29) are provided with a second protrusion (30) arranged in a staggered manner, the first protrusions (29) and the second protrusion (30) extend along the length direction of the core, the inner side of the side edge of the box body (1) away from the paper outlet side is provided with two first pits (31) corresponding to the first protrusions (29), and the outer side of the side edge of the box body (1) away from the paper outlet side is provided with a second pit (32) corresponding to the second protrusion (30), when the third cover body (4) is covered with the box body (1), the first protrusions (29) extend into the first pits (31), and the second protrusion (30) extends into the second pit (32).

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