An adjustable paper roll assembly for a label printer

Abstract

The application provides an adjustable paper reel assembly of a label printer, which comprises a paper reel and a first baffle, a label paper roll is sleeved on the outer wall of the paper reel, an installation seat is arranged on the outer wall of one end of the paper reel, an insertion slot is formed in the outer wall of the installation seat, a locking slot is formed in the inner end of the outer wall of the installation seat, the insertion slot and the locking slot are in communication, a climbing block is fixed on the inner end of the outer wall of the installation seat, the climbing block is located in the locking slot, a locking block is fixed on the inner wall of the first baffle, the climbing block and the locking block can be matched and inserted, a second baffle is slidably connected to the outer wall of the paper reel, and the label paper roll is clamped between the first baffle and the second baffle.

Description

Technical Field

[0001] This invention relates to the field of label printers, and particularly to an adjustable paper roll assembly for a label printer. Background Technology

[0002] A label printer is a device specifically designed to print text, barcodes, QR codes, and images on various label materials. Label printers are used in many scenarios, such as food delivery, express delivery, supermarkets, and merchants, to print orders and receipts. They are one of the machines that modern retailers rely heavily on. Label printers are also widely used in home life to label the categories of household items for organization and storage.

[0003] The label printer includes a housing and a paper roll. Inside the housing is a paper tray. The label roll is fitted onto the outer wall of the paper roll. A left baffle and a right baffle clamp the label roll between them and limit its position. Then, the assembled paper roll and label roll are installed into the paper tray.

[0004] Currently, the left and right baffles can be pulled out from both ends of the paper roll. When installing the label roll, first place the label roll on the outer wall of the paper roll, then adjust the label roll to the middle of the paper roll, and then insert the left and right baffles from both ends of the paper roll. After that, adjust the distance between the left and right baffles to clamp the label roll between the left and right baffles. However, this installation method is relatively complicated, and the left and right baffles are relatively easy to lose. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide an adjustable paper roll assembly for a label printer, which solves the problem of complex installation of existing label rolls.

[0006] To solve the above-mentioned technical problems, the technical solution used in this utility model is as follows:

[0007] The present invention discloses an adjustable paper roll assembly for a label printer, comprising a paper roll and a first baffle. A label roll is fitted onto the outer wall of the paper roll. A mounting base is provided on the outer wall of one end of the paper roll. The outer wall of the mounting base has an insertion groove and a locking groove at its inner end. The insertion groove and the locking groove are interconnected. A ramp block is fixed at the inner end of the outer wall of the mounting base and is located within the locking groove. A locking block is fixed on the inner wall of the first baffle. The ramp block and the locking block can be fitted and inserted together. A second baffle is also slidably connected to the outer wall of the paper roll, and the label roll is sandwiched between the first baffle and the second baffle.

[0008] Preferably, a connecting plate is fixedly sleeved on the outer wall of one end of the paper roll, the mounting seat is disposed on the outside of the connecting plate, and one side of the connecting plate abuts against the inner wall of the first baffle.

[0009] Preferably, the locking block has a recess on the side near the climbing block, and rotating the paper roll causes the climbing block to engage with the recess.

[0010] Preferably, the paper roll is provided with a plurality of positioning points at intervals for positioning the second baffle, and a first stabilizing plate and / or a second stabilizing plate are installed inside the second baffle, wherein the first stabilizing plate and / or the second stabilizing plate are limited at the positioning points.

[0011] Preferably, the second baffle has a shaft hole, the paper roll is inserted into the shaft hole, a first stabilizing plate is installed on the third side of the shaft hole, a first buckle is provided on the side of the first stabilizing plate facing the paper roll, the first buckle moves along the third surface of the outer wall of the paper roll along the axial direction, a first slot is provided on the third surface of the outer wall of the paper roll along the axial direction, there are multiple first slots, the multiple first slots are distributed along the axial direction of the paper roll, and the first buckle is used to cooperate with the first slot to position the second baffle.

[0012] Preferably, a second stabilizing plate is installed on the fourth side of the shaft hole, and a second buckle is provided on the side of the second stabilizing plate facing the paper roll shaft. The second buckle moves along the fourth surface of the paper roll shaft, and a second slot is opened on the fourth surface of the outer wall of the paper roll shaft. There are multiple second slots, and the multiple second slots are distributed along the axial direction of the paper roll shaft.

[0013] Preferably, the first stabilizing plate and / or the second stabilizing plate are elastic.

[0014] Preferably, the second baffle has a shaft hole, the paper roll is inserted into the shaft hole, a first positioning block is installed on the first side of the shaft hole, and a first positioning groove is formed on the first surface of the outer wall of the paper roll, and the first positioning block is adapted to be inserted into the first positioning groove.

[0015] Preferably, a second positioning block is installed on the second side of the shaft hole, the first positioning block and the second positioning block are correspondingly arranged, and a second positioning groove is opened on the second side of the outer wall of the paper roll shaft, and the second positioning block is adapted to be inserted into the second positioning groove.

[0016] Preferably, the first positioning block and the second positioning block extend to the outside of the inner side of the second baffle.

[0017] The beneficial effects of this invention are as follows: When the first baffle is installed with the paper roll, one end of the paper roll and the mounting base pass through the first baffle. At the same time, the locking block enters from the insertion slot. Then, the paper roll is rotated so that the locking block enters the locking slot until the locking block is inserted into the ramp block, thereby locking the first baffle and the paper roll. At this time, it is difficult for the user to separate the first baffle and the paper roll by applying axial force to the paper roll. It is not easy for the user to disassemble, so the first baffle is the locking end of one end of the paper roll. When changing the label roll, only the second baffle needs to be removed and installed, which is convenient for the user and can also reduce the loss of parts. Attached Figure Description

[0018] The above and other objects, features, and advantages of the invention will become clearer through a more detailed description of the preferred embodiments illustrated in the accompanying drawings. The same reference numerals denote the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a cross-sectional view of an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the structure of the first baffle in the embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the structure of the top of the paper roll in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the structure of the second baffle in the embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the structure at the bottom of the paper roll according to an embodiment of this application.

[0025] In the diagram: 1. Housing; 11. First cavity wall; 12. Second cavity wall; 13. Third cavity wall; 14. Fourth cavity wall; 15. Mounting slot; 2. Cover; 3. Paper roll; 31. Connecting plate; 32. Mounting base; 321. Insertion slot; 322. Locking slot; 33. First positioning slot; 34. Second positioning slot; 35. First slot; 36. Second slot; 4. First baffle; 5. Second baffle; 51. Shaft hole; 52. Mounting plate; 53. First positioning block; 54. Second positioning block; 55. First stabilizing plate; 56. Second stabilizing plate; 57. First buckle; 58. Second buckle; 6. Label roll; 7. Locking assembly; 71. Locking block; 72. Climbing block. Detailed Implementation

[0026] To facilitate understanding of the present invention, a more comprehensive description will be given below with reference to the accompanying drawings.

[0027] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] refer to Figures 1-6 This invention provides an adjustable paper roll assembly for a label printer, including a housing 1 and a cover 2. One end of the cover 2 is hinged to the top end of the housing 1. In this embodiment, the end of the cover 2 that is hinged to the housing 1 is the rear end, and the end opposite to the rear end is the front end. When the front end of the housing 1 is placed facing each other, the left side of the housing 1 is the left end, and the right side of the housing 1 is the right end. A receiving cavity is provided inside the housing 1, and the cover 2 is placed on the receiving cavity. The front end side of the receiving cavity of the housing 1 is the first cavity wall 11, the rear end side of the receiving cavity of the housing 1 is the second cavity wall 12, the left end side of the receiving cavity of the housing 1 is the third cavity wall 13, and the right end side of the receiving cavity of the housing 1 is the fourth cavity wall 14.

[0030] The third cavity wall 13 and the fourth cavity wall 14 are respectively provided with mounting grooves 15. A paper roll 3 is provided inside the housing 1. Both ends of the paper roll 3 are inserted into the mounting grooves 15 that are close to it, so that the paper roll 3 is detachably connected to the inside of the housing 1, thereby facilitating the assembly and disassembly of the paper roll 3 and the housing 1. When it is necessary to put the label roll 6 on the outer wall of the paper roll 3, the paper roll 3 is first taken out from the receiving cavity.

[0031] A first baffle 4 is fitted onto the outer wall of the left end of the paper roll 3. The printer also includes a second baffle 5. The label roll 6 is fitted onto the outer wall of the paper feed roll 3 from the right end of the paper roll 3. The label roll 6 is moved to one side of the first baffle 4. Then, the second baffle 5 is fitted onto the outer wall of the paper feed roll 3 from the right end of the paper roll 3. The second baffle 5 is moved to the other side of the label roll 6. The label roll 6 is located between the first baffle 4 and the second baffle 5. The first baffle 4 and the second baffle 5 can limit the label roll 6. When the label roll 6 is in use, it reduces the left and right movement of the label roll 6 on the paper roll 3. At the same time, it can also accommodate label rolls 6 of different widths.

[0032] A connecting plate 31 is fixedly sleeved on the outer wall of the left end of the paper roll 3. A mounting base 32 is fixed on the outer side of the connecting plate 31. A insertion groove 321 is opened on the outer wall of the mounting base 32. A locking groove 322 is opened on the inner end of the outer wall of the mounting base 32. The insertion groove 321 and the locking groove 322 are in communication. The printer also includes a locking component 7. The locking component 7 includes a locking block 71 and a climbing block 72. The climbing block 72 is fixed on the inner end of the outer wall of the mounting base 32. The climbing block 72 is located in the locking groove 322. The locking block 71 is fixed on the inner wall of the first baffle 4.

[0033] When the first baffle 4 is installed with the paper roll 3, the left end of the paper roll 3 and the mounting base 32 pass through the first baffle 4, and one side of the connecting plate 31 abuts against the inner wall of the first baffle 4. At the same time, the locking block 71 enters from the insertion groove 321. Then, the paper roll 3 is rotated so that the locking block 71 enters the locking groove 322. The side of the locking block 71 near the climbing block 72 is provided with a recess. The paper roll 3 is rotated until the climbing block 72 enters the recess, thereby locking the first baffle 4 and the paper roll 3. At this time, it is difficult for the user to separate the first baffle 4 and the paper roll 3 by applying axial force to the paper roll 3. It is not easy for the user to disassemble, so the first baffle 4 is the locking end of one end of the paper roll 3. When replacing the label roll 6, only the second baffle 5 needs to be removed and installed, which is convenient for the user and can also reduce the loss of parts.

[0034] In other embodiments, the first baffle 4 and the paper roll 3 can be fixed together by fasteners such as screws and bolts. However, the disassembly and assembly of this method is more complicated. The disassembly method in this embodiment is more convenient. In another embodiment, the first baffle 4 and one end of the paper roll 3 can also be integrally formed and fixedly connected. However, the production process of integrally forming the first baffle 4 and the paper roll 3 involves complex molds and high mold costs, which increases the cost of producing the paper roll 3 and the first baffle 4.

[0035] After the label roll 6 and the paper roll 3 are assembled, insert both ends of the paper roll 3 into the mounting slots 15 that are close to it, install the label roll 6 into the receiving cavity, and then extend one end of the unfolded part of the label roll 6 out of the housing 1 along the first cavity wall 11. After that, close the cover 2 on the top surface of the housing 1. A moving gap is reserved between the housing 1 and the cover 2 to accommodate the movement of the unfolded part of the label roll 6, so that the unfolded part of the label roll 6 can move out of the housing 1 through the moving gap.

[0036] A shaft hole 51 is provided through the middle of the side wall of the second baffle 5. The right end of the paper roll 3 is inserted into the shaft hole 51, thereby fitting the second baffle 5 onto the outer wall of the paper roll 3. In this embodiment, when the second baffle 5 is fitted onto the outer wall of the paper roll 3 and the baffle is placed at the top, the front end of the shaft hole 51 is the first side, the side of the shaft hole 51 opposite to the first side is the second side, the top of the shaft hole 51 is the third side, and the bottom of the shaft hole 51 is the fourth side. Depending on different scenarios, the positions of the first, second, third, and fourth sides of the shaft hole 51 can be changed accordingly. Accordingly, after the second baffle 5 is fitted onto the outer wall of the paper roll 3, the side of the paper roll 3 corresponding to the first side of the shaft hole 51 is the first side, the side of the paper roll 3 corresponding to the second side of the shaft hole 51 is the second side, the side of the paper roll 3 corresponding to the third side of the shaft hole 51 is the third side, and the side of the paper roll 3 corresponding to the fourth side of the shaft hole 51 is the fourth side.

[0037] Mounting plates 52 are fixed to the first and second sides of the shaft hole 51 of the second baffle 5. The mounting plates 52 are located inside the shaft hole 51. The shapes of the inner walls of the two mounting plates 52 are adapted to the outer walls of their corresponding paper rolls 3, so that the two mounting plates 52 can move along both ends of the outer walls of the paper rolls 3. The mounting plates 52 extend outward from the second baffle 5.

[0038] A first positioning groove 33 is provided on the first side of the outer wall of the paper roll 3 along the axis, and a second positioning groove 34 is provided on the second side of the outer wall of the paper roll 3 along the axis. Correspondingly, a first positioning block 53 is fixed on the inner wall of the mounting plate 52 located on the first side of the shaft hole 51. The long side of the first positioning block 53 is parallel to the axis of the paper roll 3. The first positioning block 53 is inserted into the first positioning groove 33. A second positioning block 54 is fixed on the inner wall of the mounting plate 52 located on the second side of the shaft hole 51. The long side of the second positioning block 54 is parallel to the axis of the paper roll 3. The second positioning block 54 is inserted into the second positioning groove 34. The first positioning block 53 moves along the first positioning groove 33, and the second positioning block 54 moves along the second positioning groove 34, thereby guiding the second baffle 5 to move along the axis of the paper roll 3.

[0039] The first positioning block 53 and the second positioning block 54 extend to the outside of the inner side of the second baffle 5, which can reduce the obstruction of the view of the first positioning block 53 and the second positioning block 54 by the second baffle 5. The user can better align the first positioning block 53 and the second positioning block 54 with the first positioning groove 33 and the second positioning groove 34 respectively. Therefore, when the second baffle 5 is fitted onto the outer wall of the paper roll 3, the first positioning block 53 and the second positioning block 54 can be inserted into the first positioning groove 33 and the second positioning groove 34 respectively, which makes the installation of the second baffle 5 more convenient.

[0040] A first stabilizing plate 55 is fixed on the third side of the shaft hole 51 of the second baffle 5. The first stabilizing plate 55 extends outward from the second baffle 5. A second stabilizing plate 56 is fixed on the fourth side of the shaft hole 51 of the second baffle 5. The second stabilizing plate 56 extends outward from the second baffle 5. The first stabilizing plate 55 and the second stabilizing plate 56 are arranged opposite to each other. After the paper roll 3 is inserted into the shaft hole 51, the first stabilizing plate 55 moves along the third surface of the outer wall of the paper roll 3, and the second stabilizing plate 56 moves along the fourth surface of the outer wall of the paper roll 3.

[0041] The first stabilizing plate 55 and the second stabilizing plate 56 are elastic. A first buckle 57 is fixed to the outer end of the first stabilizing plate 55 facing the paper roll 3. A plurality of first slots 35 are spaced apart on the third surface of the outer wall of the paper roll 3. The plurality of first slots 35 are evenly distributed along the axial direction of the paper roll 3. The first buckle 57 can be adapted to be inserted into the corresponding first slot 35. Correspondingly, a second buckle 58 is fixed to the outer end of the second stabilizing plate 56 facing the paper roll 3. The first buckle 57 and the second buckle 58 are in the same vertical direction. A plurality of second slots 36 are spaced apart on the fourth surface of the outer wall of the paper roll 3. The plurality of second slots 36 are evenly distributed along the axial direction of the paper roll 3. The positions of the second slots 36 and the first slots 35 correspond to each other, so that the first buckle 57 is located in the first slot 35 while the second buckle 58 is located in the corresponding second slot 36, thereby positioning the second baffle 5 and forming a plurality of positioning points on the paper roll 3.

[0042] When the second baffle 5 needs to be fitted onto the outer wall of the paper roll 3, one end of the paper roll 3 is inserted into the shaft hole 51, the first positioning block 53 is inserted into the first positioning groove 33, and the second positioning block 54 is inserted into the second positioning groove 34. Then, by continuously pushing the second baffle 5, the first latch 57 moves along the axis of the paper roll 3 towards the third surface of the outer wall, and the second latch 58 moves along the axis of the paper roll 3 towards the fourth surface of the outer wall. When the first latch 57 is inserted into the first latch 35 and the second latch 58 is inserted into the second latch 36, the user needs to apply greater force to push the first latch 57 out of the first latch 35 and the second latch 58 out of the second latch 36. The first latch 57, pushed out of the first latch 35, moves along the paper roll 3 towards the fourth surface of the outer wall. When the roll 3 moves along the third surface of the outer wall, the first buckle 57 is in an interference fit with the third surface of the outer wall of the roll 3. The outer wall of the roll 3 presses against the first buckle 57, thereby causing the first stabilizing plate 55 to adjust upward until the first buckle 57 enters the next first slot 35 during the movement. During the process of the first stabilizing plate 55 restoring its deformation, it drives the first buckle 57 to insert into the first slot 35. The first buckle 57 moves along the roll 3 in the same way until the second baffle 5 is located on one side of the label roll 6. Correspondingly, the second buckle 58 moves along the roll 3 in the same way as the first buckle 57. This will not be described in detail in the embodiments of this application.

[0043] Therefore, during the axial movement of the second baffle 5 along the paper roll 3, it will encounter corresponding resistance. When the first buckle 57 is inserted into the first slot 35 and the second buckle 58 is inserted into the second slot 36, a jamming effect is produced. Each jamming point corresponds to a corresponding size, and each jamming point is a positioning point. When the second baffle 5 is moved to one side of the label roll 6, the first buckle 57 is inserted into the corresponding first slot 35 and the second buckle 58 is inserted into the corresponding second slot 36, thereby adapting to label rolls 6 of different widths. In addition, this method can limit the second baffle 5. When the second baffle 5 is moved to the corresponding position, the sliding of the second baffle 5 along the paper roll 3 is reduced, which can better limit the label roll 6.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An adjustable paper roll assembly for a label printer, characterized in that, The device includes a paper roll and a first baffle. A label roll is fitted onto the outer wall of the paper roll. A mounting base is provided on the outer wall of one end of the paper roll. The outer wall of the mounting base has an insertion groove. A locking groove is provided on the inner end of the outer wall of the mounting base. The insertion groove and the locking groove are interconnected. A climbing block is fixed on the inner end of the outer wall of the mounting base. The climbing block is located in the locking groove. A locking block is fixed on the inner wall of the first baffle. The climbing block and the locking block can be fitted and inserted together. A second baffle is also slidably connected to the outer wall of the paper roll. The label roll is sandwiched between the first baffle and the second baffle.

2. The adjustable paper roll assembly of the label printer as described in claim 1, characterized in that, A connecting plate is fixedly sleeved on the outer wall of one end of the paper roll, and the mounting seat is disposed on the outside of the connecting plate. One side of the connecting plate abuts against the inner wall of the first baffle.

3. The adjustable paper roll assembly of the label printer as described in claim 1, characterized in that, The locking block has a recess on the side near the climbing block. Rotating the paper roll causes the climbing block to engage with the recess.

4. The adjustable paper roll assembly of the label printer as described in claim 1, characterized in that, The paper roll has multiple positioning points spaced apart for positioning the second baffle. A first stabilizing plate and / or a second stabilizing plate are installed inside the second baffle, and the first stabilizing plate and / or the second stabilizing plate are limited at the positioning points.

5. The adjustable paper roll assembly of the label printer as described in claim 1, characterized in that, The second baffle has a shaft hole, into which the paper roll is inserted. A first stabilizing plate is installed on the third side of the shaft hole. A first buckle is provided on the side of the first stabilizing plate facing the paper roll. The first buckle moves along the third surface of the outer wall of the paper roll along the axial direction. A first slot is provided on the third surface of the outer wall of the paper roll along the axial direction. There are multiple first slots, which are distributed along the axial direction of the paper roll. The first buckle is used to cooperate with the first slot to position the second baffle.

6. The adjustable paper roll assembly for a label printer as described in claim 5, characterized in that, A second stabilizing plate is installed on the fourth side of the shaft hole. A second buckle is provided on the side of the second stabilizing plate facing the paper roll shaft. The second buckle moves along the fourth surface of the paper roll shaft. A second slot is opened on the fourth surface of the outer wall of the paper roll shaft. There are multiple second slots, and the multiple second slots are distributed along the axial direction of the paper roll shaft.

7. The adjustable paper roll assembly for a label printer as described in claim 6, characterized in that, The first stabilizing plate and / or the second stabilizing plate are elastic.

8. The adjustable paper roll assembly of the label printer as claimed in claim 1, characterized in that, The second baffle has a shaft hole, the paper roll is inserted into the shaft hole, a first positioning block is installed on the first side of the shaft hole, and a first positioning groove is opened on the first side of the outer wall of the paper roll, the first positioning block is adapted to be inserted into the first positioning groove.

9. The adjustable paper roll assembly for a label printer as described in claim 8, characterized in that, A second positioning block is installed on the second side of the shaft hole. The first positioning block and the second positioning block are respectively arranged. A second positioning groove is opened on the second side of the outer wall of the paper roll shaft. The second positioning block is adapted to be inserted into the second positioning groove.

10. The adjustable paper roll assembly of the label printer as claimed in claim 9, characterized in that, The first positioning block and the second positioning block extend to the outside of the inner side of the second baffle, respectively.

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