Paper blocking structure and printer

Abstract

The utility model provides a paper blocking structure and a printer. The paper blocking structure comprises a base and at least two paper blocking assemblies. In the first direction, the at least two paper blocking assemblies are sequentially arranged at intervals, a first containing cavity is formed between any two adjacent paper blocking assemblies in the at least two paper blocking assemblies, and the paper roll assembly can be contained in the first containing cavity and clamped by the two adjacent paper blocking assemblies. The paper blocking assembly comprises a first support, a paper blocking piece and an elastic piece, the first support is slidably connected to the base in the first direction, the paper blocking piece is slidably connected to the first support in the second direction, and the second direction intersects with the first direction. The printer comprises the paper blocking structure, a base assembly and an upper cover assembly. The base assembly is provided with a second containing cavity, and the paper blocking structure is located in the second containing cavity and connected to the base assembly. The upper cover assembly is movably connected with the base assembly so as to open or close the second containing cavity, and when the upper cover assembly is connected with the base assembly, the upper cover assembly abuts against the paper blocking piece.

Description

Technical Field

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

[0002] Thermal printers can accommodate thermal paper rolls of various specifications or sizes (hereinafter collectively referred to as paper roll assemblies). These paper roll assemblies require positioning and clamping within the printer for subsequent printing operations. Thermal printers typically use paper stop structures for positioning the paper roll assemblies. However, these paper stop structures can be prone to inaccurate positioning during adjustment, leading to incorrect placement of the paper roll assembly or failure to clamp it. Furthermore, some paper stop structures require manual unlocking, which is cumbersome and inconvenient for quick adjustments. Utility Model Content

[0003] To address the issues of poor paper-blocking structure, inaccurate positioning, and cumbersome operation, embodiments of this application provide a paper-blocking structure and printer with better positioning and simpler operation.

[0004] This application provides a paper-stopping structure for mounting a paper roll assembly. The paper-stopping structure includes a base and at least two paper-stopping assemblies. Along a first direction, the at least two paper-stopping assemblies are sequentially spaced apart, and a first receiving cavity is formed between any two adjacent paper-stopping assemblies. The paper roll assembly can be accommodated within the first receiving cavity and clamped by the two adjacent paper-stopping assemblies. Each paper-stopping assembly includes a first support, a paper-stopping element, and an elastic element. Along the first direction, the first support is slidably connected to the base, and along a second direction, the paper-stopping element is slidably connected to the first support. The second direction intersects the first direction.

[0005] The paper-blocking member can be fixed relative to the base, and the first bracket can be limited by the paper-blocking member to fix the first bracket relative to the base. The elastic member is configured to provide an elastic force to the paper-blocking member. Based on the elastic force, the paper-blocking member can move relative to the first bracket to release the limitation on the first bracket.

[0006] Understandably, at least two paper-stopping assemblies can clamp the paper roll assembly within the first receiving cavity formed by the two paper-stopping assemblies, ensuring good positioning and fixation of the paper roll assembly, thus making the paper-stopping structure robust and reliable in use. Simultaneously, the sliding first bracket can adjust the position of the paper-stopping assembly, allowing it to clamp paper roll assemblies of different sizes reliably. The first bracket can be limited by the paper-stopping element in some cases, and this limitation can be released under the action of the elastic element. Thus, the paper-stopping assembly can be fixed when fixation is needed, ensuring that it does not shift during clamping and thus guaranteeing reliable clamping. When the paper-stopping assembly does not need to be fixed, its position can be adjusted to accommodate paper roll assemblies of different sizes, improving the positioning accuracy of the paper-stopping structure and simplifying operation.

[0007] In one embodiment, the paper stopper has a groove, and along the second direction, the first bracket is at least partially slidably disposed in the groove, so that the paper stopper can slide relative to the first bracket.

[0008] The paper stop can slide to abut against the portion of the first bracket located within the groove, thereby clamping the first bracket between the paper stop and the base.

[0009] In one embodiment, one end of the elastic member abuts against the paper stopper to provide an elastic force to the elastic member, the elastic force being configured to drive the paper stopper to move toward a side away from the first support.

[0010] In one embodiment, the elastic element is located within the groove, one end of the elastic element is elastically connected to the paper stopper, and the other end of the elastic element is elastically connected to the first bracket.

[0011] In one embodiment, the paper-stopping structure further includes a transmission mechanism, wherein one of the two paper-stopping assemblies clamping the same paper roll assembly is connected to the other via the transmission mechanism, and when one of the two paper-stopping assemblies clamping the same paper roll assembly moves, it can drive the other to move via the transmission mechanism.

[0012] In one embodiment, the paper stop structure further includes a driving assembly, the driving assembly including a driving member and a transmission mechanism, the driving member being drively connected to the transmission mechanism to provide driving force to the transmission mechanism, and the transmission mechanism being drively connected to two paper stop assemblies that clamp the same paper roll assembly;

[0013] Along the first direction, the transmission mechanism drives the two paper stop assemblies holding the same paper roll assembly to move close to or away from each other.

[0014] In one embodiment, the transmission mechanism includes a transmission member and two transmission pairs. The transmission member is tractively connected to the two transmission pairs. Along the first direction, the transmission member is configured to drive the two transmission pairs to move close to or away from each other. The first brackets of the two paper-stopping assemblies that hold the same paper roll assembly are respectively connected to the two transmission pairs.

[0015] This application also provides a printer, which includes a paper-stopping structure, a base assembly, and a top cover assembly as described in any of the foregoing embodiments. The base assembly has a second receiving cavity, and the paper-stopping structure is located within the second receiving cavity and connected to the base assembly. The top cover assembly is movably connected to the base assembly to open or close the second receiving cavity. When the top cover assembly is connected to the base assembly, the top cover assembly abuts against the paper-stopping structure, thereby limiting the paper-stopping structure's position against the first support.

[0016] Understandably, the top cover assembly and base assembly in the printer securely fix and unlock the paper-stopping structure. When the top cover assembly is connected to the base assembly, the second receiving cavity is closed. At this time, the paper-stopping component limits the first support, thus fixing the paper-stopping structure relative to the base assembly and ensuring stable clamping. When the top cover assembly is not connected to the base assembly, the limitation on the first support is released. At this time, the first support can slide relative to the base assembly to adjust the distance between two adjacent paper-stopping components, thereby accommodating paper roll assemblies of different sizes.

[0017] In one embodiment, the base assembly includes a second bracket, and the paper stop can be connected to the second bracket to fix the paper stop relative to the second bracket.

[0018] In one embodiment, the second bracket has a limiting groove, and the paper stop has a protrusion that can extend into the limiting groove and be confined within the limiting groove. Attached Figure Description

[0019] Figure 1 This is a perspective view of a paper-blocking structure provided in an embodiment of this application.

[0020] Figure 2 This is a top view of the transmission mechanism of a paper-stopping structure provided in an embodiment of this application.

[0021] Figure 3 This is a perspective view showing the connection between a single paper-blocking component and a portion of the driving components of a paper-blocking structure provided in an embodiment of this application.

[0022] Figure 4 This is a side view of a paper-blocking assembly of a paper-blocking structure provided in an embodiment of this application.

[0023] Figure 5This is a side sectional view of a paper-blocking assembly of a paper-blocking structure provided in an embodiment of this application.

[0024] Figure 6 This is a perspective view of the printer when it is turned on, according to another embodiment of this application.

[0025] Figure 7 This is a cross-sectional view of the printer when it is turned on, according to another embodiment of this application.

[0026] Figure 8 This is a top view of the printer when it is turned on, according to another embodiment of this application.

[0027] Figure 9 This is a perspective view of the printer when it is closed, according to another embodiment of this application.

[0028] Figure 10 This is a cross-sectional view of the printer when it is closed, according to another embodiment of this application.

[0029] Figure 11 A cross-sectional side view of the printer when closed, provided for another embodiment of this application.

[0030] Explanation of main component symbols

[0031] Printer 1

[0032] Paper baffle structure 10

[0033] Base 101

[0034] Paper stop assembly 102

[0035] First support 1021

[0036] Connection slot 10210

[0037] Guide column 10211

[0038] Resistance Department 10212

[0039] Paper baffle 1022

[0040] Slide 10220

[0041] Protrusion 10221

[0042] Elastic component 1023

[0043] First accommodating cavity 103

[0044] Transmission mechanism 104

[0045] Transmission component 1041

[0046] Transmission pair 1042

[0047] Transmission gear 10420

[0048] Base component 11

[0049] Second accommodating cavity 110

[0050] Second support 111

[0051] Limiting groove 1110

[0052] Top cover assembly 12

[0053] First direction X

[0054] Second direction Z

[0055] Third direction Y

[0056] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0057] The following description will be given with reference to the accompanying drawings for a more complete description of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the present application. As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but without excluding the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless explicitly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant technology and in the content of this application, and should not be interpreted as having an idealized or overly formal meaning.

[0058] like Figures 1 to 5 and Figure 11 As shown, this application embodiment provides a paper-blocking structure 10 for mounting a paper roll assembly (not shown) and limiting and blocking the paper roll assembly. The paper-blocking structure 10 includes a base 101 and at least two paper-blocking assemblies 102.

[0059] For ease of reading, this application introduces a first direction X, a second direction Z, and a third direction Y to describe the embodiments of this application. The first direction X, the second direction Z, and the third direction Y can be three non-parallel straight lines in space; further, the first direction X, the second direction Z, and the third direction Y can be three mutually perpendicular directions in a three-dimensional coordinate system (a three-dimensional Cartesian coordinate system). In subsequent embodiments, the first direction X is described as the X-axis direction of the three-dimensional coordinate system, the second direction Z is the Z-axis direction of the three-dimensional coordinate system, and the third direction Y is the Y-axis direction of the three-dimensional coordinate system.

[0060] Along the first direction X, at least two paper-stopping assemblies 102 are arranged sequentially at intervals. A first receiving cavity 103 is formed between any two adjacent paper-stopping assemblies 102. The paper roll assembly can be accommodated in the first receiving cavity 103 and clamped by the two adjacent paper-stopping assemblies 102. The paper-stopping assembly 102 includes a first support 1021, a paper-stopping member 1022, and an elastic member 1023. Along the first direction X, the first support 1021 is slidably connected to the base 101. Along the second direction Z, the paper-stopping member 1022 is slidably connected to the first support 1021. The second direction Z intersects the first direction X.

[0061] The paper stop 1022 can be fixed relative to the base 101. The first support 1021 can be limited by the paper stop 1022 to fix the first support 1021 relative to the base 101. The elastic member 1023 is configured to provide an elastic force to the paper stop 1022. Based on the elastic force, the paper stop 1022 can move relative to the first support 1021 to release the limitation on the first support 1021.

[0062] In this embodiment, the elastic element 1023 can be a compression spring, or other components that can provide elastic force; no further restrictions are imposed. Two paper-stopping assemblies 102 are provided to form a first receiving cavity 103, which can accommodate one paper roll assembly. Simultaneously, the two paper-stopping assemblies 102 can position and clamp the paper roll assembly. The paper-stopping element 1022 can be a plate-like object, which can limit the paper roll assembly, so that the paper roll assembly is clamped between the two paper-stopping assemblies 102.

[0063] Understandably, at least two paper-stopping components 102 can clamp the paper roll assembly within the first receiving cavity 103 formed by the two paper-stopping components 102. Through the secure and reliable fixation of the paper-stopping structure 10, the paper roll assembly is well positioned and fixed. Simultaneously, the slidable first bracket 1021 can adjust the position of the paper-stopping component 102 along the first direction X, thereby clamping paper roll assemblies of different sizes and reliably clamping paper-stopping components 102 of different sizes. The first bracket 1021 can be limited by the paper-stopping member 1022 in some cases, and this limitation can be released under the action of the elastic member 1023. Thus, the paper-stopping component 102 can be fixed when fixation is needed, ensuring that the paper-stopping component 102 does not shift during clamping, thereby ensuring reliable clamping. When the paper-stopping component 102 does not need to be fixed, its position can be adjusted to accommodate paper roll assemblies of different sizes, improving the positioning accuracy of the paper-stopping structure 10. Furthermore, the paper-stopping structure 10 is simple in overall design and precise in positioning, making it suitable for various scenarios.

[0064] In one embodiment, the paper stop 1022 has a groove 10220. Along the second direction Z, the first support 1021 is at least partially slidably disposed within the groove 10220, so that the paper stop 1022 can slide relative to the first support 1021. Furthermore, the paper stop 1022 can slide to abut against the portion of the first support 1021 located within the groove 10220, thereby clamping the first support 1021 between the paper stop 1022 and the base 101.

[0065] In this embodiment, along the second direction Z, the paper stop 1022 is disposed above the first support 1021, and the slide groove 10220 extends upward from the end face of the paper stop 1022 near the first support 1021 and does not penetrate the paper stop 1022.

[0066] The shape of the projection of the slide groove 10220 on the plane parallel to the paper stop 1022 is the same as or similar to that of the first bracket 1021. Its size is larger than that of the first bracket 1021 so that the paper stop 1022 can slide relative to the first bracket 1021. During the sliding, it will abut against the area of ​​the first bracket 1021 located in the slide groove 10220 to limit the paper stop 1022, while the first bracket 1021 is clamped between the paper stop 1022 and the base 101.

[0067] Along the second direction Z, a supporting portion 10212 protrudes from the outer peripheral surface of the end of the first bracket 1021 away from the paper stop 1022. Two supporting portions 10212 are provided, located on opposite sides of the first bracket 1021 along the third direction Y. Along the second direction Z, the portion of the first bracket 1021 extending beyond the supporting portion 10212 can slide within the slide groove 10220, and abuts against the paper stop 1022 in the second direction Z via the supporting portion 10212.

[0068] Understandably, the paper stop 1022, which is slidable relative to the first support 1021, can be fixed relative to the base 101 under the action of external force. At this time, the first support 1021 is also clamped between the paper stop 1022 and the base 101, so that the paper stop assembly 102 is fixed relative to the base 101, thereby ensuring that the paper stop assembly 102 is stable and reliable during the process of clamping the paper roll assembly.

[0069] In one embodiment, one end of the elastic member 1023 abuts against the paper stop member 1022 to provide an elastic force to the elastic member 1023, the elastic force being configured to drive the paper stop member 1022 to move toward a side away from the first support 1021.

[0070] Understandably, the elastic element 1023 abuts against the paper stop 1022 and can provide an elastic force to the paper stop 1022 to drive its movement. Thus, when an external force is applied to the paper stop 1022 to drive it to move toward the side closer to the first support 1021, the elastic element 1023 is compressed and has an elastic force. After the external force is no longer applied to the paper stop 1022, the elastic force on the elastic element 1023 can drive the paper stop 1022 to move toward the side away from the first support 1021 and release the locking of the paper stop 1022 to the first support 1021.

[0071] In one embodiment, the elastic element 1023 is located in the groove 10220, one end of the elastic element 1023 is elastically connected to the paper stop 1022, and the other end of the elastic element 1023 is elastically connected to the first bracket 1021.

[0072] In this embodiment, as Figure 4 and Figure 5 As shown, along the second direction Z, a connecting groove 10210 is provided at one end of the first bracket 1021 near the paper stop 1022, and the extending direction of the connecting groove 10210 is parallel to the second direction Z. The elastic member 1023 can be partially accommodated in the connecting groove 10210. When the elastic member 1023 is compressed, it is compressed into the connecting groove 10210.

[0073] In other embodiments, along the second direction Z, a guide post 10211 is also connected to the first bracket 1021. The guide post 10211 is located in the connecting groove 10210, and the elastic element 1023 is sleeved on the guide post 10211.

[0074] Understandably, the connecting groove 10210 is designed to limit the elastic element 1023 when it is compressed, preventing displacement in other directions during compression and ensuring proper compression. The guide post 10211 further guides and limits the movement of the elastic element 1023 along the second direction Z, ensuring proper compression and providing sufficient elastic force.

[0075] In one embodiment, such as Figures 1 to 3 As shown, the paper stop structure 10 also includes a transmission mechanism 104. One of the two paper stop assemblies 102 that clamp the same paper roll assembly is connected to the other through the transmission mechanism 104. When one of the two paper stop assemblies 102 that clamp the same paper roll assembly moves, it can drive the other to move through the transmission mechanism 104.

[0076] In this embodiment, when adjusting the distance between the two paper stop assemblies 102 clamping the same paper roll assembly, the operator can apply a pushing force to any one of the paper stop plates or the first bracket 1021 to drive the transmission pair 1042 connected to it to move, thereby driving the transmission component 1041 to rotate, and then driving the other transmission pair 1042 connected to the transmission component 1041 to move, thus driving the other paper stop assembly 102 to move, and completing the adjustment of the distance between the two paper stop assemblies 102 clamping the same paper roll assembly.

[0077] In one embodiment, the paper-stopping structure 10 further includes a driving assembly, which includes a driving member (not shown) and a transmission mechanism 104. The driving member is drively connected to the transmission mechanism 104 to provide driving force to the transmission mechanism 104. The transmission mechanism is drively connected to two paper-stopping assemblies 102 that clamp the same paper roll assembly. Along the first direction X, the transmission mechanism 104 drives the two paper-stopping assemblies 102 that clamp the same paper roll assembly to move close to or away from each other.

[0078] In this embodiment, the driving component can be a motor, as long as the driving component can drive the transmission mechanism 104 to rotate, without any further restrictions.

[0079] In other embodiments, the driving element may also be a lever or knob, etc., and the operator can provide driving force to the transmission mechanism 104 by turning or twisting the driving element to make the transmission mechanism 104 move.

[0080] Understandably, the drive transmission mechanism 104 moves to move the two paper stop assemblies 102 connected to it, and the two paper stop assemblies 102 can move close to each other or away from each other under the drive of the transmission mechanism 104, thereby adjusting the distance between the two paper stop assemblies 102 so as to clamp paper roll assemblies of different sizes.

[0081] In one embodiment, the transmission mechanism 104 includes a transmission member 1041 and two transmission pairs 1042. The transmission member 1041 is tractively connected to the two transmission pairs 1042. Along the first direction X, the transmission member 1041 is configured to drive the two transmission pairs 1042 to move close to or away from each other. The first bracket 1021 of the two paper-stopping assemblies 102 that hold the same paper roll assembly is respectively connected to the two transmission pairs 1042.

[0082] In this embodiment, the first bracket 1021 of the two paper-blocking assemblies 102 that hold the same paper roll assembly is respectively connected to a transmission pair 1042, so that both first brackets 1021 can move under the drive of the transmission pair 1042.

[0083] The transmission component 1041 includes a gear module, and the transmission pair 1042 is provided with transmission teeth 10420. The transmission pair 1042 is connected to the gear module through the transmission teeth 10420.

[0084] The gear module can be a single gear, with transmission pairs 1042 located on opposite sides of the gear. The transmission teeth 10420 on the transmission pairs 1042 can mesh with the gear to form a transmission. The transmission pairs 1042 can be racks.

[0085] The base 101 can have two corresponding transmission pairs 1042 with two guide rails along the first direction X so that the transmission pairs 1042 can move along the guide rails. At the same time, the guide rails can limit the displacement of the transmission pairs 1042 in the third direction Y, ensuring that the movement of the transmission pairs 1042 is only along the first direction X, so that the movement of the transmission mechanism 104 is good and reliable.

[0086] In other embodiments, the gear module can also be a gear set formed by the cooperation of multiple gears, as long as the gear module can drive the two transmission pairs 1042 to move synchronously in opposite directions, without making too many restrictions here.

[0087] Understandably, the transmission pairs 1042 connected to opposite sides of the gears can move in similar or opposite directions under the drive of the gear rotation, thereby realizing the movement of the two paper stop assemblies 102 that hold the same paper roll assembly.

[0088] like Figures 5 to 11 As shown in the embodiments, this application also provides a printer 1, which includes a paper-blocking structure 10, a base assembly 11, and a top cover assembly 12 as described in any of the foregoing embodiments. The base assembly 11 has a second receiving cavity 110, and the paper-blocking structure 10 is located within the second receiving cavity 110 and connected to the base assembly 11. The top cover assembly 12 is movably connected to the base assembly 11 to open or close the second receiving cavity 110. When the top cover assembly 12 is locked to the base assembly 11, the top cover assembly 12 abuts against the paper-blocking member 1022, thereby limiting the paper-blocking member 1022 against the first support 1021.

[0089] In this embodiment, a switch button can be provided on the upper cover assembly 12 or the base assembly 11. After the upper cover assembly 12 is pressed down and locked with the base assembly 11, the upper cover assembly 12 and the base assembly 11 are relatively fixed. When it is necessary to open, press the switch button to release the connection between the upper cover assembly 12 and the base assembly 11, and the upper cover assembly 12 can move relative to the base assembly 11, thus unlocking the upper cover assembly 12 and the base assembly 11.

[0090] The base 101 is connected to the base assembly 11 so that the paper stop structure 10 is connected to the base assembly 11.

[0091] Understandably, the top cover assembly 12 and the base assembly 11 in printer 1 enable the fixing and unlocking of the paper-stopping structure 10. When the top cover assembly 12 and the base assembly 11 are locked, the second receiving cavity 110 is closed. At this time, the paper-stopping component 1022 limits the first support 1021, thereby fixing the paper-stopping structure 10 relative to the base assembly 11 and ensuring stable clamping. When the top cover assembly 12 and the base assembly 11 are not locked, the limitation on the first support 1021 is released. At this time, the first support 1021 can slide relative to the base assembly 11 to adjust the distance between two adjacent paper-stopping components 102, thereby accommodating paper roll components of different sizes.

[0092] In one embodiment, the base assembly 11 includes a second bracket 111, and a paper stop 1022 can be connected to the second bracket 111 to fix the paper stop 1022 relative to the second bracket 111.

[0093] In this embodiment, when the paper stop 1022 is pressed down by the upper cover assembly 12, the paper stop 1022 moves along the second direction Z and can connect with the second bracket 111, so that the paper stop 1022 is fixed to the second bracket 111. At the same time, the paper stop 1022 can clamp the first bracket 1021 between the paper stop 1022 and the second bracket 111. The paper stop assembly 102 is relatively fixed to the upper cover assembly 12 and the base assembly 11.

[0094] Understandably, when the paper stop 1022 is fixed relative to the second bracket 111, the paper stop assembly 102 is fixed relative to the base assembly 11. The paper stop assembly 102 will not move arbitrarily during use. Even if the paper roll assembly clamped between the two paper stop assemblies 102 shakes, it will not affect the paper stop assembly 102. The paper stop assembly 102 will not be displaced due to the shaking of the paper roll assembly, ensuring reliability during operation.

[0095] In one embodiment, the second bracket 111 has a limiting groove 1110, and the paper stop 1022 is provided with a protrusion 10221, which can extend into the limiting groove 1110 and be limited within the limiting groove 1110.

[0096] In this embodiment, the limiting groove 1110 of the second bracket 111 can engage with the protrusion 10221 of the paper stop 1022. When the paper stop 1022 moves under the drive of the upper cover assembly 12, the protrusion 10221 engages with the limiting groove 1110, thus fixing the paper stop 1022 to the second bracket 111. When the upper cover assembly 12 releases the pressure on the paper stop 1022, along the second direction Z, the elastic member 1023 can drive the paper stop 1022 to move, causing the protrusion 10221 to move along the side away from the limiting groove 1110, thereby freeing the protrusion 10221 from being confined within the limiting groove 1110, thereby releasing the second bracket 111 from confining the paper stop 1022, and thus decoupling the second bracket 111 from the paper stop 1022.

[0097] In other embodiments, limiting grooves 1110 can be formed on the second support 111 at specific distances. For example, if the length of a commonly used paper roll assembly is a fixed value, the limiting grooves 1110 can be formed according to the length of the paper roll assembly, so that when the two paper stoppers 1022 are confined in the limiting grooves 1110, the distance between the two paper stoppers 1022 is just enough to accommodate and clamp the paper roll assembly. When multiple types of paper roll assemblies are used, multiple limiting grooves 1110 can be set in a targeted manner to ensure that after paper roll assemblies of different sizes are clamped, the paper stoppers 1022 can be connected to the second support 111, so that the paper stoppers 102 are relatively fixed to the base assembly 11, ensuring that the clamping of the paper roll assembly is not affected.

[0098] When printer 1 is in use, the distance between the two paper-stopping components 102 clamping the same paper roll assembly is first adjusted by moving the transmission mechanism 104. After adjustment, the paper roll assembly is placed into the first receiving cavity 103, and the distance between the two paper-stopping components 102 is adjusted again until the two paper-stopping components 102 can clamp the paper roll assembly. The upper cover assembly 12 is connected to the base assembly 11. At this time, the paper-stopping component 1022 is connected to the second bracket 111, and the paper-stopping component 102 and the base assembly 11 are relatively fixed, providing good clamping for the paper roll assembly. When the paper roll assembly needs to be replaced, the connection between the upper cover assembly 12 and the base assembly 11 is released. At this time, the paper-stopping component 1022 is also no longer connected to the second bracket 111, and the paper-stopping component 102 can move relative to the base assembly 11. The distance between the two paper-stopping components 102 can be adjusted to replace the new paper roll assembly.

[0099] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A paper-stopping structure for mounting a paper roll assembly, characterized in that, The paper-stopping structure includes: Base; At least two paper-stopping assemblies are arranged sequentially at intervals along a first direction. A first receiving cavity is formed between any two adjacent paper-stopping assemblies. The paper roll assembly can be accommodated in the first receiving cavity and is clamped by the two adjacent paper-stopping assemblies. The paper-blocking assembly includes a first bracket, a paper-blocking element, and an elastic element. Along the first direction, the first bracket is slidably connected to the base, and along the second direction, the paper-blocking element is slidably connected to the first bracket. The second direction intersects the first direction. The paper-blocking member can be fixed relative to the base, and the first bracket can be limited by the paper-blocking member to fix the first bracket relative to the base. The elastic member is configured to provide an elastic force to the paper-blocking member. Based on the elastic force, the paper-blocking member can move relative to the first bracket to release the limitation on the first bracket.

2. The paper-stopping structure as described in claim 1, characterized in that, The paper stopper is provided with a sliding groove, and along the second direction, the first bracket is at least partially slidably disposed in the sliding groove so that the paper stopper can slide relative to the first bracket; The paper stop can slide to abut against the portion of the first bracket located within the groove, thereby clamping the first bracket between the paper stop and the base.

3. The paper-stopping structure as described in claim 2, characterized in that, One end of the elastic element abuts against the paper stopper to provide an elastic force to the elastic element, the elastic force being configured to drive the paper stopper to move toward a side away from the first support.

4. The paper-stopping structure as described in claim 3, characterized in that, The elastic element is located within the groove, with one end of the elastic element elastically connected to the paper stopper and the other end of the elastic element elastically connected to the first bracket.

5. The paper-stopping structure as described in claim 1, characterized in that, The paper-blocking structure also includes a transmission mechanism, wherein one of the two paper-blocking assemblies clamping the same paper roll assembly is connected to the other through the transmission mechanism, and when one of the two paper-blocking assemblies clamping the same paper roll assembly moves, it can drive the other to move through the transmission mechanism.

6. The paper-stopping structure as described in claim 1, characterized in that, The paper-stopping structure further includes a driving assembly, which includes a driving component and a transmission mechanism. The driving component is drivingly connected to the transmission mechanism to provide driving force to the transmission mechanism. The transmission mechanism is drivingly connected to two paper-stopping assemblies that clamp the same paper roll assembly. Along the first direction, the transmission mechanism drives the two paper stop assemblies holding the same paper roll assembly to move close to or away from each other.

7. The paper-stopping structure as described in claim 6, characterized in that, The transmission mechanism includes a transmission component and two transmission pairs. The transmission component is pulsatorically connected to the two transmission pairs. Along the first direction, the transmission component is configured to drive the two transmission pairs to move close to or away from each other. The first brackets of the two paper-stopping assemblies that hold the same paper roll assembly are respectively connected to the two transmission pairs.

8. A printer, characterized in that, include: The paper stop structure as described in any one of claims 1 to 7; A base assembly having a second receiving cavity thereon, wherein the paper-blocking structure is located within the second receiving cavity and connected to the base assembly; The upper cover assembly is movably connected to the base assembly to open or close the second receiving cavity. When the upper cover assembly is connected to the base assembly, the upper cover assembly abuts against the paper stopper so that the paper stopper limits the first bracket.

9. The printer as described in claim 8, characterized in that, The base assembly includes a second bracket, and the paper stop can be connected to the second bracket to fix the paper stop relative to the second bracket.

10. The printer as claimed in claim 9, characterized in that, The second bracket has a limiting groove, and the paper stop has a protrusion that can extend into the limiting groove and be confined within it.

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