Paper jam mechanism and printer

Abstract

The application relates to the technical field of printers, and aims to solve the technical problem that whether there is paper and whether a paper clamping part is stuck with a paper roll cannot be identified simultaneously, and provides a paper blocking mechanism and a printer. The paper blocking mechanism comprises a base, a baffle group and a sensor. The baffle group has a paper feeding channel. The baffle group comprises two baffles. The two baffles are arranged on the base and can slide relative to each other along a first direction. A paper containing space for placing a paper roll is formed between the two baffles. The paper feeding channel and the paper containing space are communicated to feed the printing paper of the paper roll. The first direction is parallel to the axial direction of the paper roll. The sensor is arranged on at least one baffle and is used for detecting the printing paper in the paper feeding channel. The application arranges the sensor on at least one baffle, and can simultaneously identify whether there is printing paper in the paper feeding channel and whether the two baffles are stuck with the paper roll.

Description

Technical Field

[0001] The present application relates to the technical field of printers, and in particular to a paper stop mechanism and a printer. Background Art

[0002] To improve printer compatibility and accommodate different paper sizes, existing printers typically incorporate an adjustable paper clamp located perpendicular to the paper roll's axis within the paper bin to prevent the paper roll from shifting. However, if the clamp's positioning accuracy is poor, the paper roll may shift or even distort during printing.

[0003] The detection mechanism inside the printer is often located on the bottom wall of the paper compartment. When the detection mechanism detects that the remaining printing paper amount is less than a preset value, it will remind the user to replenish the printing paper. Such a detection mechanism has difficulty in detecting whether the paper clamp is fixing the paper roll in the preset position, and it is also difficult to ensure the accuracy of the paper roll positioning. Summary of the Invention

[0004] In view of this, the present application provides a paper stop mechanism and a printer, which can improve the positioning accuracy of printing paper of different specifications in the paper bin, so as to reduce the situation where the paper roll shifts and causes paper jams.

[0005] One embodiment of the present application provides a paper stop mechanism. The paper stop mechanism includes a base, a baffle assembly, and a sensor. The baffle assembly has a paper feed path. The baffle assembly includes two baffles. The two baffles are disposed on the base and are capable of sliding relative to each other in a first direction. A paper storage space for placing a paper roll is formed between the two baffles. The paper feed path and the paper storage space are connected to allow printing paper on the paper roll to be discharged. The first direction is parallel to the axial direction of the paper roll. The sensor is disposed on at least one baffle and is configured to detect printing paper in the paper feed path.

[0006] When the paper baffle mechanism is working, the paper roll is placed between the two baffles, and the printed paper on the paper roll is discharged through the paper feed channel on the baffle group. When the sensor does not detect the printed paper, it may be that there is no printed paper in the paper storage space, or it may be that the two baffles do not clamp the paper roll, that is, there is a large gap between the paper roll and the baffles; if the printed paper is indeed used up, the user replenishes the paper. If the two baffles do not clamp the paper roll, adjust the baffles until the sensor detects that there is printed paper in the paper feed channel. When the sensor detects that there is printed paper, that is, there is paper in the paper storage space and the two baffles clamp the paper roll. The paper baffle mechanism provided in the present application is provided with a sensor on at least one baffle, which can simultaneously identify whether there is printed paper in the paper feed channel and whether the two baffles clamp the paper roll.

[0007] In some embodiments of the present application, the baffle includes a baffle body. A paper storage space is formed between the two baffle bodies. The baffle also includes a mounting portion. The mounting portion is connected to the baffle body of the baffle. A paper feed path is located in the mounting portion. The mounting portion is provided with a detection channel connected to the paper feed path. A sensor is disposed in the mounting portion and senses printing paper in the paper feed path through the detection channel.

[0008] The baffle equipped with the sensor includes a baffle body and a mounting portion. Compared to directly mounting the sensor on the baffle body, the mounting portion provides a stable and appropriate mounting location for the sensor. Furthermore, the mounting portion and the baffle body of the baffle on which it resides are arranged perpendicular to the first direction. That is, the mounting portion is located along the paper delivery direction and away from the paper roll body. This effectively prevents the sensor from interfering with paper delivery, while still allowing the sensor to detect the presence of paper in the paper path.

[0009] In some embodiments of the present application, the baffle further includes a paper guide portion, which is disposed on a side of the mounting portion close to the paper receiving space and gradually moves away from the base in a direction away from the paper feeding channel.

[0010] The paper guide helps the printing paper pass more smoothly through the paper feed, ensuring that the printing paper reaches the printing position accurately. The paper guide gradually moves away from the base as it moves away from the paper feed, which helps ensure that paper of different thicknesses can pass through the paper feed and be ejected from the paper guide.

[0011] In some embodiments of the present application, the baffle is slidable relative to the base to drive the sensor to slide relative to the base.

[0012] The baffle provided with the sensor is slidably connected to the base, so that the sensor can slide along the first direction along with the baffle on which it is located, which is conducive to placing the sensor in the best detection position.

[0013] In some embodiments of the present application, the baffle further includes a toggle portion, which is disposed on a side of the baffle body facing away from the base and close to the mounting portion of the baffle.

[0014] Since the sensor is arranged in the mounting part of the baffle, the center of gravity of the entire baffle will be close to the mounting part. When the baffle equipped with the sensor is slidably connected to the base, a toggle part is provided on the side of the baffle body away from the base and close to the mounting part, which can provide a fulcrum for the user to toggle the baffle along the first direction, making it convenient for the user to adjust the baffle.

[0015] In some embodiments of the present application, the base includes a base body and a connecting plate. The connecting plate is detachably connected to the base body. The connecting plate is provided with a guide groove. The mounting portion is slidably connected to the guide groove and is slidable relative to the guide groove in a first direction.

[0016] For a baffle equipped with a sensor and slidable relative to the base, installation involves first sliding the mounting portion into the guide groove in a first direction to assemble the baffle and connecting plate. The connecting plate and baffle are then assembled integrally with the base. This eliminates the need to attach and detach two baffles from the entire base; the connecting plate is detachably attached to the base, further simplifying the installation process. Furthermore, the guide grooves on the connecting plate ensure smoother sliding of the baffle in the first direction, reducing any jerking sensation during baffle adjustment.

[0017] In some embodiments of the present application, there are two mounting parts. The two mounting parts are respectively a front mounting part and a rear mounting part. The front mounting part and the rear mounting part are spaced apart. The side of the front mounting part away from the paper storage space is connected to the side of the rear mounting part away from the paper storage space. The rear mounting part is slidably connected to the guide groove. The paper feed channel is located between the front mounting part and the rear mounting part. The sensor includes a signal sending component and a signal receiving component. The signal sending component is provided at the front mounting part. The signal receiving component is provided at the rear mounting part. The detection channel is connected between the front mounting part and the rear mounting part and intersects with the paper feed channel.

[0018] Thus, when the signal sent by the signal transmitter is received by the signal receiver, it means that there is no printing paper in the paper feed path; otherwise, it means that there is paper in the paper feed path. A portion of the front mounting portion is connected to the rear mounting portion, which is slidably connected to the guide groove. There is an assembly between the two mounting portions and the connecting plate to enhance the connection strength between the baffle and the base.

[0019] In some embodiments of the present application, a baffle is provided with a sensor, the baffle is fixed to the base, and the other baffle is slidably connected to the base.

[0020] The baffle with the sensor is fixed relative to the base, and the other baffle does not need to be equipped with a sensor but can slide relative to the base, which can also detect whether there is printing paper in the paper feeding channel and whether the two baffles clamp the paper roll.

[0021] In some embodiments of the present application, there are multiple sensors, and the multiple sensors are distributed along a direction perpendicular to the first direction.

[0022] Multiple sensors are located on the baffle, perpendicular to the first direction. When the sensors are distributed along the paper delivery direction (i.e., spaced apart), a paper jam may occur if some sensors detect the absence of paper in the paper path while others detect the presence of paper. When multiple sensors are located on both sides of the paper path, multi-point detection can be performed on paper passing through the path, further improving detection accuracy.

[0023] In some embodiments of the present application, there are multiple sensors, and the multiple sensors are distributed along the first direction.

[0024] On the baffle with sensors, there are multiple sensors distributed along the first direction. When some sensors sense the presence of paper, but other sensors cannot sense the printing paper, it can be confirmed that the baffle group does not clamp the paper roll. When all sensors cannot sense the printing paper, it can be confirmed that paper needs to be replenished.

[0025] In some embodiments of the present application, the base includes a base body and a connecting plate, which is detachably connected to the base body; a baffle groove is formed between the base body and the connecting plate, and both baffles are slidably connected to the baffle groove.

[0026] The two baffles are slidably connected to the base via a baffle sliding groove, making the structural coordination between the baffle group and the base simpler.

[0027] An embodiment of the present application provides a printer, which includes a paper stop mechanism.

[0028] In the above embodiment, the printer includes a paper stop mechanism, and a sensor is provided on at least one baffle of the paper stop mechanism, which is conducive to ensuring that whether there is printing paper in the paper feed path and whether the two baffles are jamming the paper roll can be simultaneously identified, which helps to improve printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope.

[0030] Figure 1 A schematic diagram of the structure of a printer provided in one embodiment of the present application;

[0031] Figure 2 A diagram showing a printer provided in an embodiment of the present application being used for a paper roll of another specification;

[0032] Figure 3 This is a schematic diagram of a paper roll disposed between a first baffle and a second baffle in one embodiment of the present application;

[0033] Figure 4 This is a structural diagram of the connection between the first baffle and the connecting plate in one embodiment of the present application;

[0034] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0035] Figure 6 for Figure 5 A structural diagram from another perspective;

[0036] Figure 7A cross-sectional view of a printer provided in one embodiment of the present application;

[0037] Figure 8 Schematic diagram of the structure of the connecting plate in one embodiment of the present application.

[0038] Description of main component symbols:

[0039] 101. Paper storage space; 1. Base; 1001. Baffle slide; 11. Base body; 12. Connecting plate; 121. First guide groove; 122. Second guide groove; 2. Baffle; 201. Paper feed path; 21. First baffle; 211. First baffle body; 212. First mounting portion; 2121. Front mounting portion; 2122. Rear mounting portion; 2123. First detection channel; 213. First paper guide; 214. First slider; 215. First stop block; 216. First toggle portion; 22. Second baffle; 221. Second baffle body; 222. Second mounting portion; 223. Second paper guide; 224. Second slider; 225. Second stop block; 226. Second toggle portion; 3. Sensor; 31. Signal transmitter; 32. Signal receiver; 4. Paper roll; 200. Printer; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0041] The definitions of "first direction" and "second direction" are for the convenience of describing the relative positional relationship of related structures, and do not mean that "first direction" and "second direction" need to depend on the related structures involved in the above definitions.

[0042] Furthermore, the terms “first,” “second,” etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0043] It should be noted that when an element is considered to be “connected” to another element, it may be directly connected to the other element or there may be an intermediate element. When an element is considered to be “disposed on” another element, it may be directly disposed on the other element or there may be an intermediate element.

[0044] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0046] Embodiments of the present application provide a paper stop mechanism. The paper stop mechanism includes a base, a baffle assembly, and a sensor. The baffle assembly defines a paper feed path. The baffle assembly includes two baffles. The two baffles are disposed on the base and are capable of sliding relative to each other in a first direction. A paper storage space for a paper roll is formed between the two baffles. The paper feed path and the paper storage space communicate with each other to allow printing paper on the paper roll to be discharged. The first direction is parallel to the axial direction of the paper roll. The sensor is disposed on at least one baffle and is configured to detect printing paper in the paper feed path.

[0047] When the paper baffle mechanism is working, the paper roll is placed between the two baffles, and the printed paper on the paper roll is discharged through the paper feed channel on the baffle group. When the sensor does not detect the printed paper, it may be that there is no printed paper in the paper storage space, or it may be that the two baffles do not clamp the paper roll, that is, there is a large gap between the paper roll and the baffles; if the printed paper is indeed used up, the user replenishes the paper. If the two baffles do not clamp the paper roll, adjust the baffles until the sensor detects that there is printed paper in the paper feed channel. When the sensor detects that there is printed paper, that is, there is paper in the paper storage space and the two baffles clamp the paper roll. The paper baffle mechanism provided in the present application is provided with a sensor on at least one baffle, which can simultaneously identify whether there is printed paper in the paper feed channel and whether the two baffles clamp the paper roll.

[0048] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features of the embodiments may be combined with each other.

[0049] See Figure 1 、 Figure 2 and Figure 6 One embodiment of the present application provides a paper stop mechanism. The paper stop mechanism includes a base 1, a baffle group, and a sensor 3. The baffle group has a paper feed channel 201. The baffle group includes two baffles 2. The two baffles 2 are arranged on the base 1 and can slide relative to each other along a first direction X. A paper storage space 101 for placing a paper roll 4 is formed between the two baffles 2. The paper feed channel 201 and the paper storage space 101 are connected to each other to discharge the printing paper of the paper roll 4. The first direction X is parallel to the axial direction of the paper roll 4. The sensor 3 is arranged on at least one baffle 2 and is used to detect the printing paper in the paper feed channel 201.

[0050] When the paper baffle mechanism is working, the paper roll 4 is placed between the two baffles 2, and the printed paper on the paper roll 4 is discharged through the paper feed channel 201 on the baffle group. When the sensor 3 does not detect the printed paper, it may be that there is no printed paper in the paper storage space 101, or it may be that the two baffles 2 do not clamp the paper roll 4, that is, there is a large gap between the paper roll 4 and the baffle 2; if the printed paper is indeed used up, the user replenishes the paper. If the two baffles 2 do not clamp the paper roll 4, adjust the baffle 2 until the sensor 3 detects that there is printed paper in the paper feed channel 201. When the sensor 3 detects that there is printed paper, that is, there is paper in the paper storage space 101 and the two baffles 2 clamp the paper roll 4. The paper baffle mechanism provided in the present application is provided with a sensor 3 on at least one baffle 2, which can simultaneously identify whether there is printed paper in the paper feed channel 201 and whether the two baffles 2 clamp the paper roll 4.

[0051] In some embodiments, the baffle 2 includes a baffle body. A paper storage space 101 is formed between the two baffle bodies. The baffle 2 also includes a mounting portion. The mounting portion is connected to the baffle body of the baffle 2. A paper feed path 201 is located in the mounting portion. The mounting portion is provided with a detection channel connected to the paper feed path 201. A sensor 3 is disposed in the mounting portion and senses the printing paper in the paper feed path 201 through the detection channel.

[0052] The baffle 2 equipped with the sensor 3 comprises a baffle body and a mounting portion. Compared to directly mounting the sensor 3 on the baffle body, the mounting portion provides a stable and appropriate mounting location for the sensor 3. Furthermore, the mounting portion and the baffle body of the baffle 2 on which it resides are oriented perpendicular to the first direction X. That is, the mounting portion is located along the paper delivery direction and away from the paper roll body. This effectively prevents the sensor 3 from interfering with the delivery of the paper roll 4, while still enabling the sensor 3 to detect the presence of paper in the paper path 201.

[0053] like Figure 1 and Figure 4 As shown, the two baffles 2 are respectively a first baffle 21 and a second baffle 22. Taking the example of the first baffle 21 being provided with a sensor 3, the first baffle 21 includes a first baffle body 211 and a first mounting portion 212, and the second baffle 22 includes a second baffle body 221. A paper storage space 101 is formed between the first baffle body 211 and the second baffle body 221. The first mounting portion 212 is connected to the first baffle body 211. The paper feed path 201 is located on the first mounting portion 212. The first mounting portion 212 is provided with a first detection channel 2123 connected to the paper feed path 201. The sensor 3 is provided on the first mounting portion 212 and senses the printing paper in the paper feed path 201 through the first detection channel 2123.

[0054] When the second baffle 22 is equipped with the sensor 3, the second baffle 22 also includes a second mounting portion 222 connected to the second baffle body 221. Part of the paper feed path 201 is located on the first mounting portion 212, and part of the paper feed path 201 is located on the second mounting portion 222. The second mounting portion 222 is provided with a second detection channel (not shown) that communicates with the paper feed path 201.

[0055] For example, see Figure 5 , Figure 5 The diagram shows the sensor 3 installed within the first mounting portion 212 of the first baffle 21. During installation, the signal transmitter 31 of the sensor 3 is inserted into the front mounting portion 2121 along the first direction X, and the signal receiver 32 is inserted into the rear mounting portion 2122 along the first direction X. In practice, a mounting slot can be provided on the side of the first mounting portion 212 facing away from the paper receiving space 101 to facilitate installation of the sensor 3 within the mounting portion. After the sensor 3 is installed, a pressure plate is provided to block the mounting slot to prevent the sensor 3 from falling out of the first mounting portion 212 and to provide dust and water resistance.

[0056] In some embodiments, the first baffle 21 further includes a first paper guide 213 , which is disposed on a side of the first mounting portion 212 close to the paper receiving space 101 , and gradually moves away from the base 1 in a direction away from the paper feeding channel 201 .

[0057] The first paper guide 213 helps the printing paper pass through the paper feed path 201 more smoothly, ensuring that the printing paper reaches the printing position accurately. The first paper guide 213 gradually moves away from the base 1 in the direction away from the paper feed path 201, which helps to ensure that paper of different thicknesses can pass through the paper feed path 201 and the first paper guide 213 before being discharged.

[0058] In some embodiments, the second baffle 22 further includes a second paper guide 223 , which is disposed on a side of the second mounting portion 222 close to the paper receiving space 101 , and gradually moves away from the base 1 in a direction away from the paper feeding channel 201 .

[0059] The second paper guide 223 helps the printing paper pass through the paper feed path 201 more smoothly, ensuring that the printing paper reaches the printing position accurately. The second paper guide 223 gradually moves away from the base 1 in the direction away from the paper feed path 201, which helps to ensure that paper of different thicknesses can pass through the paper feed path 201 and the second paper guide 223.

[0060] In some embodiments, the baffle 2 is slidable relative to the base 1 to drive the sensor 3 to slide relative to the base 1 .

[0061] The baffle 2 provided with the sensor 3 is slidably connected to the base 1 , so that the sensor 3 can slide along the first direction X along with the baffle 2 on which it is located, which is conducive to placing the sensor 3 in the best detection position.

[0062] When only the first baffle 21 is equipped with sensor 3 and is slidably connected to the base 1, the second baffle 22 is not equipped with sensor 3 and is fixed relative to the base 1. During use, the user places the paper roll 4 between the first baffle 21 and the second baffle 22 and presses the paper roll 4 against the second baffle 22. When the sensor 3 on the first baffle 21 detects that there is no printing paper in the paper feed path 201, that is, the first baffle 21 and the second baffle 22 are not blocking the paper roll 4 or the paper roll 4 has been used up, if the paper roll 4 is not blocked, adjust the first baffle 21 until the sensor 3 detects that there is paper in the paper feed path 201. If the paper roll 4 has been used up, replace the paper roll 4 and place the paper roll 4 between the first baffle 21 and the second baffle 22, ensuring that the paper roll 4 and the second baffle 22 are still pressed against each other. The sensor 3 ensures that the first baffle 21 and the second baffle 22 hold the paper roll 4 securely. If only the second baffle 22 is equipped with sensor 3 and is slidably connected to the base 1, the same procedure applies.

[0063] When only the first baffle 21 is provided with the sensor 3, and both the first baffle 21 and the second baffle 22 are slidable relative to the base 1. During use, the user places the paper roll 4 between the first baffle 21 and the second baffle 22, and presses the paper roll 4 against the second baffle 22. When the sensor 3 on the first baffle 21 detects that there is no printing paper in the paper feed channel 201, that is, the first baffle 21 and the second baffle 22 do not jam the paper roll 4 or the paper roll 4 has been used up. If the paper roll 4 is not jammed, the user can adjust the first baffle 21 until the sensor 3 detects that there is paper in the paper feed channel 201. Alternatively, the user can move the paper roll 4 and press the paper roll 4 against the first baffle 21 until the sensor 3 on the first baffle 21 detects that there is paper in the paper feed channel 201, and then adjust the second baffle 22 until the two baffles 2 jam the paper roll 4. If the paper roll 4 has been used up, when replacing the paper roll 4 and placing the paper roll 4 between the first baffle 21 and the second baffle 22, ensure that the paper roll 4 and the second baffle 22 are tightly pressed against each other, and use the sensor 3 to ensure that the first baffle 21 and the second baffle 22 clamp the paper roll 4.

[0064] When both the first baffle 21 and the second baffle 22 are equipped with sensors 3 and are slidably connected to the base 1, when the sensor 3 on the first baffle 21 detects that there is no printing paper in the paper feed path 201, the first baffle 21 is adjusted; when the sensor 3 on the second baffle 22 detects that there is no printing paper in the paper feed path 201, the second baffle 22 is adjusted. The user can adjust the corresponding first baffle 21 and / or second baffle 22 based on the detection results of the sensor 3 without adjusting the position of the paper roll 4, thereby improving user convenience.

[0065] See Figure 3 In some embodiments, the first baffle 21 further includes a first toggle portion 216. The first toggle portion 216 is located on a side of the first baffle body 211 facing away from the base 1. The second baffle 22 further includes a second toggle portion 226. The second toggle portion 226 is located on a side of the second baffle body 221 facing away from the base 1.

[0066] Since the sensor 3 is arranged in the mounting portion of the baffle 2, the center of gravity of the entire baffle 2 will be close to the location of the mounting portion. When the baffle 2 with the sensor 3 is slidably connected to the base 1, a toggle portion is provided on the side of the baffle body away from the base 1 and close to the mounting portion. This can provide a fulcrum for the user to toggle the baffle 2 along the first direction X, making it convenient for the user to adjust the first baffle 21 and / or the second baffle 22.

[0067] In some embodiments, the base 1 includes a base body 11 and a connecting plate 12. The connecting plate 12 is detachably connected to the base body 11. The connecting plate 12 is provided with a guide groove. The mounting portion is slidably connected to the guide groove and is slidable relative to the guide groove along a first direction X.

[0068] To install the baffle 2, which is equipped with the sensor 3 and is slidable relative to the base 1, the mounting portion is first slid into the guide groove along the first direction X to assemble the baffle 2 and the connecting plate 12. The connecting plate 12 and baffle 2 are then assembled as a single unit to the base body 11. This eliminates the need to detach the two baffles 2 from the entire base 1; the connecting plate 12 is detachably connected to the base body 11, further simplifying the installation process. Furthermore, the guide grooves on the connecting plate 12 ensure smooth sliding of the baffle 2 in the first direction X, reducing any jerking sensation during baffle 2 adjustment.

[0069] like Figure 1 and Figure 8As shown, taking the example of the first baffle 21 and the second baffle 22 both being provided with sensors 3 and both being slidably connected to the connecting plate 12, the connecting plate 12 is provided with a first guide groove 121 and a second guide groove 122 along the first direction X. The first mounting portion 212 is slidably connected to the first guide groove 121 along the first direction X, and the second mounting portion 222 is slidably connected to the second guide groove 122 along the first direction X. During installation, the first mounting portion 212 is slid into the first guide groove 121 and the second mounting portion 222 is slid into the second guide groove 122 along the first direction X to complete the assembly of the baffle assembly and the connecting plate 12. In some embodiments, a baffle groove 1001 is formed between the base body 11 and the connecting plate 12, and the first baffle body 211 and the second baffle body 221 are both slidably connected to the baffle groove 1001 and can both move along the first direction X. In this way, the baffle slide 1001 together with the first guide groove 121 and the second guide groove 122 can ensure that the baffle assembly slides more accurately along the first direction X, which helps to ensure paper output and printing quality. When the baffle 2 needs to be repaired or replaced, it is also convenient to install and remove.

[0070] See Figure 2 、 Figure 4 and Figure 7 In some embodiments, when the first baffle 21 is slidably connected to the base 1 along the first direction X, the first baffle 21 further includes a first slider 214. A paper storage space 101 is formed between the first baffle body 211 and the second baffle body 221. The first slider 214 is connected to the first baffle body 211, and the direction in which the first slider 214 and the first baffle body 211 are arranged is perpendicular to the first direction X. The first slider 214 is slidably connected to the baffle groove 1001, allowing the first baffle 21 to move along the first direction X. When the second baffle 22 is slidably connected to the base 1 along the first direction X, the second baffle 22 further includes a second slider 224. The second slider 224 is connected to the second baffle body 221, and the direction in which the second slider 224 and the second baffle body 221 are arranged is perpendicular to the first direction X. The second slider 224 is slidably connected to the baffle groove 1001, allowing the second baffle 22 to move along the first direction X.

[0071] The first slider 214 of the first baffle 21 and the second slider 224 of the second baffle 22 are both slidably connected to the baffle groove 1001. The baffle groove 1001 can provide a guiding function, so that the first baffle 21 and / or the second baffle 22 can slide stably along the first direction X, effectively reducing the shaking generated when adjusting the baffle 2, and helping to make the first baffle 21 and / or the second baffle 22 stably support the paper roll 4, so that the first baffle 21 and the second baffle 22 can also clamp the paper roll 4 more stably.

[0072] In some embodiments, the baffle slot 1001 extends through the base 1 along the second direction Y. The first baffle 21 further includes a first stopper 215. The first slider 214 and the first stopper 215 are detachably connected. The first stopper 215 and the first baffle body 211 are located on either side of the baffle slot 1001 along the second direction Y to prevent the first slider 214 from disengaging from the baffle slot 1001. The second baffle 22 further includes a second stopper 225. The second slider 224 and the second stopper 225 are detachably connected. The second stopper 225 and the second baffle body 221 are located on either side of the baffle slot 1001 along the second direction Y to prevent the second slider 224 from disengaging from the baffle slot 1001. The second direction Y is perpendicular to the first direction X and is away from the paper storage space 101.

[0073] The baffle groove 1001 passes through the base 1 along the second direction Y, and the first baffle 21 and the second baffle 22 can be directly placed into the baffle groove 1001 along the second direction Y without being installed into the groove along the first direction X. The sliding connection assembly between the baffle group and the base 1 is more convenient, and then the first stop block 215 and the second stop block 225 are used to stop the first slider 214 and the second slider 224 from disengaging, which helps to ensure that the sliding of the first baffle 21 and the second baffle 22 relative to the base 1 is stable and reliable.

[0074] In some embodiments, at least one of the first slider 214 and the baffle groove 1001 has a sliding bar structure so that there is linear friction between the first slider 214 and the baffle groove 1001; in this way, when the first baffle 21 slides along the first direction X, the blocking feeling caused by the sliding friction can be reduced, making the first baffle 21 slide more smoothly.

[0075] In some embodiments, at least one of the second slider 224 and the baffle groove 1001 has a sliding bar structure so that there is linear friction between the second slider 224 and the baffle groove 1001; in this way, when the second baffle 22 slides along the first direction X, the blocking feeling caused by the sliding friction can be reduced, making the second baffle 22 slide more smoothly.

[0076] After the sensor 3 is mounted on the first baffle 21 and / or the second baffle 22, the first and second baffles 21 and 22 are slidably connected to the connecting plate 12 along the first direction X. The first mounting portion 212 is located within the first guide groove 121 and can slide along the first direction X, while the second mounting portion 222 is located within the second guide groove 122 and can slide along the first direction X. A snap-fit ​​structure is provided between the connecting plate 12 and the base body 11. The connecting plate 12 and the baffle assembly are then snapped into the base body 11 along the second direction Y. The first and second sliders 214 and 224 are located within the baffle grooves 1001, and the first and second stop blocks 215 and 225 are then installed. Furthermore, screws can be used to secure the connecting plate 12 to the base body 11.

[0077] See Figure 5 and Figure 6 In some embodiments, the number of mounting parts is two. The two mounting parts are respectively a front mounting part 2121 and a rear mounting part 2122. The front mounting part 2121 and the rear mounting part 2122 are spaced apart. The side of the front mounting part 2121 away from the paper storage space 101 and the side of the rear mounting part 2122 away from the paper storage space 101 are connected. The rear mounting part 2122 is slidably connected to the guide groove. The paper feed channel 201 is located between the front mounting part 2121 and the rear mounting part 2122. The sensor 3 includes a signal sending part 31 and a signal receiving part 32. The signal sending part 31 is provided on the front mounting part 2121. The signal receiving part 32 is provided on the rear mounting part 2122. The detection channel is connected between the front mounting part 2121 and the rear mounting part 2122 and intersects with the paper feed channel 201.

[0078] Thus, when the signal sent by the signal transmitter 31 is received by the signal receiver 32, it means that there is no printing paper in the paper feed path 201; otherwise, it means that there is paper in the paper feed path 201. A portion of the front mounting portion 2121 is connected to the rear mounting portion 2122, which is slidably connected to the first guide groove 121. The two mounting portions and the connecting plate 12 are assembled to improve the connection strength between the baffle 2 and the base 1.

[0079] The sensor 3 may also be a photoelectric sensor 3 , and the light path / signal emitted by the sensor 3 is blocked, that is, there is paper in the paper feeding channel 201 .

[0080] In some embodiments, one baffle 2 is provided with a sensor 3 , and the baffle 2 is fixed to the base 1 , while the other baffle 2 is slidably connected to the base 1 .

[0081] The baffle 2 with the sensor 3 is fixed relative to the base 1, and the other baffle 2 does not need to be provided with the sensor 3 but can slide relative to the base 1, and can also detect whether there is printing paper in the paper feeding channel 201 and whether the two baffles 2 clamp the paper roll 4.

[0082] If the sensor 3 is disposed on the first baffle 21 and the first baffle 21 is fixed, the second baffle 22 can slide along the first direction X. When the paper roll 4 is placed between the first baffle 21 and the second baffle 22, the paper roll 4 and the second baffle 22 are always kept in contact. When the sensor 3 on the first baffle 21 detects that there is no printing paper in the paper feed path 201, that is, the first baffle 21 and the second baffle 22 are not blocking the paper roll 4 or the paper roll 4 has been used up, if the paper roll 4 is not blocked, the second baffle 22 and the paper roll 4 are adjusted until the sensor 3 detects that there is paper in the paper feed path 201. If the paper roll 4 has been used up, the paper roll 4 is replaced and when the paper roll 4 is placed between the first baffle 21 and the second baffle 22, the paper roll 4 and the second baffle 22 are still kept in contact, and the sensor 3 ensures that the first baffle 21 and the second baffle 22 clamp the paper roll 4.

[0083] If the sensor 3 is disposed on the second baffle 22 and the second baffle 22 is fixed, the first baffle 21 can slide along the first direction X. When the paper roll 4 is placed between the first baffle 21 and the second baffle 22, the paper roll 4 and the first baffle 21 are always kept in contact. When the sensor 3 on the second baffle 22 detects that there is no printing paper in the paper feed path 201, that is, the first baffle 21 and the second baffle 22 are not blocking the paper roll 4 or the paper roll 4 has been used up, if the paper roll 4 is not blocked, the first baffle 21 and the paper roll 4 are adjusted until the sensor 3 detects that there is paper in the paper feed path 201. If the paper roll 4 has been used up, the paper roll 4 is replaced and when the paper roll 4 is placed between the first baffle 21 and the second baffle 22, the paper roll 4 and the first baffle 21 are still kept in contact, and the sensor 3 ensures that the first baffle 21 and the second baffle 22 clamp the paper roll 4.

[0084] In some embodiments, there are multiple sensors 3 , and the multiple sensors 3 are distributed along a direction perpendicular to the first direction X.

[0085] On the baffle 2, where sensors 3 are provided, there are multiple sensors 3 distributed perpendicular to the first direction X. When multiple sensors 3 are distributed along the paper ejection direction (i.e., multiple sensors 3 are spaced apart along the paper ejection direction), if some sensors detect that there is no paper in the paper feed path 201 while others detect that there is paper in the paper feed path 201, a paper jam has occurred. When multiple sensors 3 are distributed on both sides of the paper feed path 201 along the paper ejection direction, multi-point detection can be performed on the printing paper passing through the paper feed path 201, further improving detection accuracy.

[0086] The multiple sensors 3 can be provided on the first baffle 21 and distributed along the first direction X, or they can be provided on the second baffle 22 and distributed along the first direction X. Taking the case where the multiple sensors 3 are provided on the first baffle 21 as an example, if some sensors 3 sense the presence of paper but others do not, it can be determined that the baffle assembly is not clamping the paper roll 4 tightly. If all sensors 3 do not sense the presence of paper, it can be determined that paper refill is required. The same applies to the case where the multiple sensors are provided on the second baffle 22.

[0087] When multiple sensors 3 are provided on both the first baffle 21 and the second baffle 22 along the first direction X. If some of the sensors 3 on the first baffle 21 sense the presence of paper, but other sensors 3 do not sense the printing paper, it can be confirmed that the first baffle 21 is not pressed against the paper roll 4. If some of the sensors 3 on the second baffle 22 sense the presence of paper, but other sensors 3 do not sense the printing paper, it can be confirmed that the second baffle 22 is not pressed against the paper roll 4. In both cases, only the first baffle 21 or the second baffle 22 needs to be adjusted. If the above situation occurs on both the first baffle 21 and the second baffle 22, both the first baffle 21 and the second baffle 22 need to be adjusted. When all sensors on the first baffle 21 and the second baffle 22 sense the printing paper, there is paper in the paper holding space 101 and the baffle group has jammed the paper roll 4.

[0088] In some embodiments, there are multiple sensors 3 , and the multiple sensors 3 are distributed along the first direction X.

[0089] On the baffle 2 provided with sensors 3, there are multiple sensors 3 distributed along the first direction X. When some sensors 3 sense the presence of paper but other sensors 3 do not sense the printing paper, it can be confirmed that the baffle group does not clamp the paper roll 4. When all sensors 3 do not sense the printing paper, it can be confirmed that paper needs to be replenished.

[0090] In some embodiments, the base 1 includes a base body 11 and a connecting plate 12, and the connecting plate 12 is detachably connected to the base body 11; a baffle groove 1001 is formed between the base body 11 and the connecting plate 12, and both baffles 2 are slidably connected to the baffle groove 1001.

[0091] The two baffles 2 are slidably connected to the base 1 via a baffle sliding groove 1001, making the structural coordination between the baffle group and the base 1 simpler.

[0092] See Figure 1 and Figure 2 An embodiment of the present application provides a printer 200, which includes a paper stop mechanism.

[0093] In the above embodiment, the printer 200 includes a paper stop mechanism, and a sensor 3 is provided on at least one baffle 2 of the paper stop mechanism, which is conducive to ensuring that whether there is printing paper in the paper feed channel 201 and whether the two baffles 2 are jammed with the paper roll 4 can be simultaneously identified, which helps to improve the printing quality.

[0094] In addition, those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present application and are not intended to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of disclosure of the present application.

Claims

1. A paper blocking mechanism, characterized in that: include: base, a baffle assembly having a paper feed passage; the baffle assembly includes two baffles, the two baffles being disposed on the base and capable of sliding relative to each other along a first direction, a paper storage space for placing a paper roll being formed between the two baffles, the paper feed passage being connected to the paper storage space for discharging printing paper from the paper roll, and the first direction being parallel to the axial direction of the paper roll; and a sensor, provided on at least one of the baffles and used for detecting the printing paper in the paper feeding path; The baffle includes a baffle body; the paper holding space is formed between the two baffle bodies; The baffle further includes a mounting portion connected to the baffle body of the baffle, the paper feed path is located on the mounting portion, the mounting portion is provided with a detection channel connected to the paper feed path, the sensor is provided on the mounting portion and senses the printing paper in the paper feed path through the detection channel; The distribution direction of the mounting portion and the baffle body of the baffle where the mounting portion is located is perpendicular to the first direction.

2. The paper blocking mechanism according to claim 1, wherein: The baffle further includes a paper guide portion, which is arranged on a side of the mounting portion close to the paper accommodating space, and the paper guide portion gradually moves away from the base in a direction away from the paper feeding channel.

3. The paper stop mechanism according to claim 1, wherein: The baffle is slidable relative to the base to drive the sensor to slide relative to the base.

4. The paper blocking mechanism according to claim 3, wherein: The baffle further includes a toggle portion, which is arranged on a side of the baffle body of the baffle away from the base and close to the mounting portion of the baffle.

5. The paper blocking mechanism according to claim 3, wherein: The base includes a base body and a connecting plate, and the connecting plate is detachably connected to the base body; the connecting plate is provided with a guide groove, and the mounting portion is slidably connected to the guide groove and is slidable relative to the guide groove along the first direction.

6. The paper blocking mechanism according to claim 5, characterized in that: There are two mounting parts, and the two mounting parts are respectively a front mounting part and a rear mounting part. The front mounting part and the rear mounting part are spaced apart, and the rear mounting part is slidably connected to the guide groove. A side of the front mounting part away from the paper storage space is connected to a side of the rear mounting part away from the paper storage space, and the paper feeding channel is located between the front mounting part and the rear mounting part. The sensor includes a signal sending component and a signal receiving component; the signal sending component is arranged on the front mounting part, the signal receiving component is arranged on the rear mounting part, and the detection channel is located between the front mounting part and the rear mounting part and intersects with the paper feeding channel.

7. The paper blocking mechanism according to claim 1, wherein: One of the baffles is provided with the sensor and is fixed to the base, and the other baffle is slidably connected to the base.

8. The paper blocking mechanism according to claim 1, wherein: There are multiple sensors, and the multiple sensors are distributed along a direction perpendicular to the first direction; or There are multiple sensors, and the multiple sensors are distributed along the first direction.

9. The paper blocking mechanism according to claim 1, wherein: The base includes a base body and a connecting plate, and the connecting plate is detachably connected to the base body; a baffle slot is formed between the base body and the connecting plate, and both baffles are slidably connected to the baffle slot.

10. A printer, characterized in that: include: The paper stop mechanism according to any one of claims 1 to 9.

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