A printer label roll mounting device

Abstract

The utility model discloses a kind of printer label roll's placing device, it is related to printer label roll placing technical field, including bottom plate, support plate and rotating rod, the quantity of support plate is two, and is respectively fixedly connected on the left and right sides of bottom plate upper surface, rotating groove is set in two support plate upper end, rotating groove penetrates support plate, rotating rod is set in the upper end between two support plate. The utility model is through the cooperation of bottom plate, support plate, rotating groove, rotating rod, rotating column, stabilizing device, linkage, screw rod, worm wheel, inner diameter support clamp component, bending plate, arc plate, drive self-locking piece, worm, knob, rubber non-slip mat and limiting plate, realizes that different inner diameter label roll can be adapted, realizes that label roll and rotating rod are closely adhered and fixed, avoid the effect that label roll shakes and jumps when unwinding.

Description

Technical Field

[0001] This utility model relates to the field of printer label roll placement technology, specifically a printer label roll placement device. Background Technology

[0002] As the core consumable material carrying label information, the compatibility of the label roll with the printer directly affects the label printing efficiency and quality. To meet the label printing needs of different scenarios, mainstream label printers on the market are often equipped with a label roll mounting device. As the connecting structure between the label roll and the printer body, this device needs to achieve stable support and smooth rotation of the label roll to ensure that the labels can be continuously and flatly fed to the printer's printing mechanism. It is a key component to ensure the continuous operation of the printing process. Among various label roll mounting devices, the external label roll mounting bracket is widely used in small and medium-sized label printers or scenarios where different specifications of label rolls need to be frequently changed due to its advantages such as convenient installation, easy replacement of label rolls, and no occupation of internal printer space. This type of external mounting bracket is usually supported by a base plate, with rotating rods mounted on both sides of the support plates. The label roll is directly sleeved on the rotating rod, and the label roll is fed out by the printer pulling in conjunction with the rotation of the rotating rod. Its simple structure and convenient operation make it the first choice for many users.

[0003] However, when using existing label roll external mounting brackets, there are significant differences in the inner diameter of label rolls from different brands and for different purposes. The outer diameter of the rotating rod of the external mounting bracket is usually a fixed size. When a label roll with a larger inner diameter is placed on the rotating rod, a large gap is easily formed between the two. This causes the label roll to be unable to fit tightly against the surface of the rotating rod and to become loose. As a result, during the unwinding process, the label roll will shake and jump significantly when it rotates due to the gap. This unstable state will not only cause uneven label feeding speed, resulting in misaligned and blurry printed content, but also easily cause paper jams due to the jumping of the label roll. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a label roll mounting device for a printer. This device is adaptable to label rolls of different inner diameters, ensuring a tight fit and fixation between the label roll and the rotating rod, preventing the label roll from shaking or jumping during unwinding. It improves or solves, to some extent, the problems encountered with existing external label roll mounting brackets. Because label rolls of different brands and for different purposes have significantly different inner diameters, and the outer diameter of the rotating rod of the external mounting bracket is usually a fixed size, when a label roll with a larger inner diameter is mounted on the rotating rod, a large gap easily forms between them. This causes the label roll to be unable to fit tightly against the rotating rod surface, resulting in a loose fit. Consequently, during unwinding, the label roll will shake and jump noticeably due to the gap. This instability not only causes uneven label feeding speed, leading to misaligned and blurry printed content, but also easily causes paper jams due to the jumping of the label roll.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a label roll mounting device for a printer, comprising a base plate, a support plate, and a rotating rod. Two support plates are fixedly connected to the left and right sides of the upper surface of the base plate, respectively. Each of the two support plates has a rotating groove extending through it. The rotating rod is positioned at the upper end between the two support plates. Rotating columns are fixedly connected to the left and right ends of the rotating rod, respectively. The two rotating columns are respectively positioned inside the two rotating grooves and are movably connected to them. A cavity is formed inside the rotating rod, and a stabilizing device is installed inside the rotating rod.

[0006] As a preferred embodiment of this utility model, the stabilizing device includes a linkage component, an inner diameter support clamp assembly, and a driving self-locking component. There are two linkage components, which are respectively disposed at the left and right ends inside the rotating rod. There are two inner diameter support clamp assemblies, which are respectively disposed at the front and rear sides inside the rotating rod. The driving self-locking component is disposed at the upper end of the two linkage components.

[0007] As a preferred embodiment of this utility model, the linkage component includes a screw and a worm gear. The two screws are respectively disposed at the left and right ends inside the rotating rod, and both the front and rear ends are rotatably connected to the inner wall of the rotating rod. The two worm gears are respectively sleeved on the middle end surface of the two screws and are fixedly connected to the screws.

[0008] The threads on the front and rear ends of the screw rotate in opposite directions.

[0009] In a preferred embodiment of this utility model, the inner diameter support clamp assembly includes a bent plate and an arc-shaped plate. The number of bent plates is four, and they are respectively sleeved on the front and rear end surfaces of the two screws and are all threadedly connected to the screws. There are two bent plates on each of the front and rear sides, and they extend from the front and rear sides of the rotating rod and are slidably connected to the rotating rod. The arc-shaped plate is sleeved on the front and rear sides of the rotating rod and is movably connected to the rotating rod, and is fixedly connected to one end of the four bent plates extending from the rotating rod.

[0010] As a preferred embodiment of this invention, rubber anti-slip pads are fixedly connected to the surfaces of the two arc-shaped plates that are far apart from each other.

[0011] As a preferred embodiment of this utility model, the self-locking drive component includes a worm and a knob. The worm is disposed on the upper side of the two worm wheels and meshes with them. The left and right ends of the worm are rotatably connected to the left and right ends of the rotating rod, respectively. The right end extends out of the rotating rod and passes through the rotating column at the right end, and is rotatably connected to the rotating column. The knob is fixedly connected to the right end of the worm.

[0012] In a preferred embodiment of this invention, the two rotating columns extend from opposite ends into the rotating groove, and limit plates are fixedly connected to the front and rear sides respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the coordinated use of a base plate, support plate, rotating groove, rotating rod, rotating column, stabilizing device, linkage component, screw, worm gear, inner diameter support clamp assembly, bending plate, arc plate, drive self-locking component, worm gear, knob, rubber anti-slip pad, and limit plate, improves or solves to a certain extent the problem of existing label roll external mounting brackets. Due to significant differences in the inner diameter of label rolls of different brands and for different purposes, and the fact that the outer diameter of the rotating rod of the external mounting bracket is usually a fixed size, when a label roll with a larger inner diameter is placed on the rotating rod, a large gap easily forms between them. This causes the label roll to be unable to fit tightly against the surface of the rotating rod, resulting in a loose fit. During the unwinding process, the label roll will shake and jump noticeably due to the gap. This instability not only causes uneven label conveying speed, leading to misaligned and blurry printed content, but also easily causes paper jams due to the jumping of the label roll.

[0015] 2. This utility model achieves tight fixation of the inner wall of the label roll by setting an inner diameter support and clamping assembly, with the cooperation of the arc plate and the bending plate. The rubber anti-slip pad enhances the adhesion friction, and the limiting plate prevents the rotating rod from shifting axially. The three components work together to improve the stability and adaptability of the label roll placement.

[0016] 3. This utility model achieves drive transmission by setting up a linkage component and a drive self-locking component, and the meshing of the worm and worm wheel. With the help of screws with opposite thread directions, it can synchronously drive the inner diameter support clamping components on both sides to move, and has a self-locking function to ensure the stability and ease of operation after the label roll is fixed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the label roll external mounting bracket of this utility model;

[0018] Figure 2 An exploded three-dimensional structural diagram of an external mounting bracket for label rolls;

[0019] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the rotating rod;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of the device in the event of an explosion.

[0021] In the diagram: 1. Base plate; 101. Support plate; 103. Rotating groove; 2. Rotating rod; 21. Rotating column; 3. Stabilizing device; 31. Linkage component; 311. Screw; 312. Worm gear; 32. Inner diameter support clamp assembly; 321. Bending plate; 322. Arc plate; 33. Drive self-locking component; 331. Worm gear; 332. Knob; 4. Rubber anti-slip pad; 5. Limiting plate. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1

[0027] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a device for placing a printer label roll, including a base plate 1, a support plate 101 and a rotating rod 2. There are two support plates 101, which are fixedly connected to the left and right sides of the upper surface of the base plate 1, respectively. The upper end of each support plate 101 is provided with a rotating groove 103, which passes through the support plate 101. The rotating rod 2 is located at the upper end between the two support plates 101. The left and right ends of the rotating rod 2 are respectively fixedly connected with rotating columns 21. The two rotating columns 21 are respectively located inside the two rotating grooves 103 and are movably connected to the rotating grooves 103. The rotating rod 2 has a cavity inside and a stabilizing device 3 is provided inside the rotating rod 2.

[0028] The stabilizing device 3 includes a linkage 31, an inner diameter support clamp assembly 32, and a drive self-locking component 33. There are two linkages 31, which are respectively located at the left and right ends inside the rotating rod 2. There are two inner diameter support clamp assemblies 32, which are respectively located at the front and rear sides inside the rotating rod 2. The drive self-locking component 33 is located on the upper end of the two linkages 31.

[0029] Specifically, the device, through the stabilizing device 3 inside the rotating rod 2, can adapt to label rolls of different inner diameters, achieving a tight fit and stable fixation of the label roll on the surface of the rotating rod 2, effectively preventing shaking, jumping or shifting during roll output, and ensuring printing efficiency and quality.

[0030] Furthermore, the base plate 1 and the two side support plates 101 form a support base. The rotating rod 2 is mounted in the rotating groove 103 of the support plate 101 through the rotating column 21 to achieve rotatable installation. The stabilizing device 3 in the cavity of the rotating rod 2 can adjust and fix the label roll. The whole system works together to achieve stable support and smooth roll-out of the label roll.

[0031] Example 2

[0032] In the second embodiment of this utility model, the inner diameter support clamp assembly 32 includes a bent plate 321 and an arc plate 322. There are four bent plates 321, which are respectively sleeved on the front and rear end surfaces of the two screws 311 and are threadedly connected to the screws 311. There are two bent plates 321 on each of the front and rear sides, and the rotating rod 2 extends from the front and rear sides of the rotating rod 2 respectively and is slidably connected to the rotating rod 2. The arc plate 322 is sleeved on the front and rear sides of the rotating rod 2 and is movably connected to the rotating rod 2, and is fixedly connected to one end of the four bent plates 321 extending from the rotating rod 2.

[0033] Rubber anti-slip pads 4 are fixedly connected to the surfaces of the two arc plates 322 that are far apart from each other;

[0034] The two rotating columns 21 extend rotating grooves 103 from their far ends, and limit plates 5 are fixedly connected to their front and rear sides respectively.

[0035] Specifically, by setting the inner diameter support clamp assembly 32, the cooperation between the arc plate 322 and the bending plate 321 achieves the tight fixation of the inner wall of the label roll, the rubber anti-slip pad 4 enhances the adhesion friction, and the limiting plate 5 prevents the rotating rod 2 from shifting axially. The three work together to improve the stability and adaptability of the label roll placement.

[0036] Furthermore, when the screw 311 rotates, it drives the bending plates 321 at both ends to slide towards each other along the screw 311. The bending plates 321 push the arc plate 322 to expand outward until the rubber anti-slip pad 4 is tightly attached to the inner wall of the label roll. At the same time, the limiting plates 5 at both ends of the rotating column 21 can limit the axial displacement of the rotating rod 2 in the rotating groove 103, prevent the rotating rod 2 from separating from the support plate 101, and ensure the stable operation of the overall structure.

[0037] Example 3

[0038] In the third embodiment of this utility model, the linkage 31 includes a screw 311 and a worm gear 312. The two screws 311 are respectively disposed at the left and right ends inside the rotating rod 2, and both the front and rear ends are rotatably connected to the inner wall of the rotating rod 2. The two worm gears 312 are respectively sleeved on the middle end surface of the two screws 311 and are fixedly connected to the screws 311.

[0039] The threads on the front and rear ends of screw 311 are in opposite directions;

[0040] The self-locking drive component 33 includes a worm gear 331 and a knob 332. The worm gear 331 is disposed on the upper side of two worm wheels 312 and is meshed with the worm wheels 312. The left and right ends of the worm gear 331 are rotatably connected to the left and right ends of the rotating rod 2, respectively. The right end extends out of the rotating rod 2 and passes through the rotating post 21 at the right end, and is rotatably connected to the rotating post 21. The knob 332 is fixedly connected to the right end of the worm gear 331.

[0041] Specifically, by setting the linkage 31 and the drive self-locking component 33 to cooperate, the meshing of the worm 331 and the worm wheel 312 realizes the drive transmission. With the screw 311 with the opposite thread direction, it can synchronously drive the inner diameter support clamping components 32 on both sides to move, and has a self-locking function to ensure the stability and ease of operation after the label roll is fixed.

[0042] Furthermore, rotating the knob 332 drives the worm 331 to rotate, and the worm 331 drives the left and right screws 311 to rotate synchronously through meshing with the two worm wheels 312. Since the threads at the front and rear ends of the screw 311 turn in opposite directions, its rotation can cause the bent plate 321 sleeved on the screw 311 to move axially towards each other, providing power for the expansion of the inner diameter support clamp assembly 32. At the same time, the meshing structure between the worm 331 and the worm wheels 312 can prevent the screw 311 from rotating in the opposite direction when the label roll rotates, achieving self-locking and avoiding failure of the stable state.

[0043] Working principle:

[0044] In use, first lift the rotating rod 2 upwards from the rotating slots 103 on both sides, so that the rotating posts 21 at both ends of the rotating rod 2 disengage from the rotating slots 103. Remove the rotating rod 2 as a whole from between the two support plates 101. Place the label roll onto the surface of the rotating rod 2 from either end. Slowly push the label roll along the axial direction of the rotating rod 2 until it is adjusted to the middle of the rotating rod 2 or the target position that meets the printing requirements. Then, put the rotating rod 2 with the label roll back between the support plates 101, ensuring that the rotating posts 21 at both ends of the rotating rod 2 are accurately engaged in the rotating slots 103 of the support plates 101 on both sides, completing the initial placement of the label roll. At this time, turn the knob 332 located at the right end of the rotating rod 2. The knob 332 will drive the worm gear 331 fixedly connected to it to rotate synchronously. Since the worm gear 331 meshes with the two worm wheels 312 inside the rotating rod 2, the rotation of the worm gear 331 will drive the worm gear 331 to rotate synchronously. Two worm gears 312 rotate in the same direction, and the worm gears 312 are fixedly connected to the screw 311, thereby driving the screw 311 to rotate. Since the threads on the front and rear ends of the screw 311 rotate in opposite directions, its rotation will cause the bent plates 321 sleeved on the front and rear ends of the screw 311 to move in opposite directions along the axial direction of the screw 311. When the bent plates 321 move, they will push the arc plate 322 fixedly connected to them to expand outward synchronously until the rubber anti-slip pad 4 on the outer side of the arc plate 322 is tightly attached to the inner wall of the label roll. During this process, the meshing structure of the worm 331 and the worm gear 312 has a self-locking characteristic, which can prevent the arc plate 322 from retracting due to the reverse force generated by the rotation of the label roll. Finally, it achieves stable positioning of label rolls with different inner diameters, ensuring that the label roll, rotating rod 2 and rotating column 21 can rotate synchronously inside the rotating groove 103 when the roll is unwound, avoiding shaking, jumping or deviation.

[0045] In summary, by using the base plate 1, support plate 101, rotating groove 103, rotating rod 2, rotating column 21, stabilizing device 3, linkage component 31, screw 311, worm gear 312, inner diameter support clamp assembly 32, bending plate 321, arc plate 322, drive self-locking component 33, worm gear 331, knob 332, rubber anti-slip pad 4, and limiting plate 5 in combination, it is possible to adapt to label rolls with different inner diameters, achieve a tight fit and fixation between the label roll and the rotating rod, and avoid the label roll shaking and jumping when it is unwound.

[0046] The base plate 1, screw 311, worm gear 312 and worm 331 used in this application can be additionally equipped with protective measures of common knowledge in the art under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, etc., which are commonly used by those skilled in the art.

[0047] It should be noted that the base plate 1, screw 311, worm gear 312 and worm 331 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for placing a printer label roll, comprising a base plate (1), a support plate (101), and a rotating rod (2), wherein there are two support plates (101), which are respectively fixedly connected to the left and right sides of the upper surface of the base plate (1), characterized in that: Both of the support plates (101) have a rotating groove (103) at their upper ends, the rotating groove (103) penetrates the support plate (101), the rotating rod (2) is set at the upper end between the two support plates (101), the left and right ends of the rotating rod (2) are respectively fixedly connected to rotating columns (21), the two rotating columns (21) are respectively set inside the two rotating grooves (103) and are movably connected to the rotating grooves (103), the rotating rod (2) has a cavity inside, and a stabilizing device (3) is set inside the rotating rod (2).

2. The printer label roll mounting device according to claim 1, characterized in that: The stabilizing device (3) includes a linkage (31), an inner diameter support clamp assembly (32), and a drive self-locking component (33). There are two linkages (31), which are respectively located at the left and right ends inside the rotating rod (2). There are two inner diameter support clamp assemblies (32), which are respectively located at the front and rear sides inside the rotating rod (2). The drive self-locking component (33) is located on the upper end of the two linkages (31).

3. The printer label roll mounting device according to claim 2, characterized in that: The linkage component (31) includes a screw (311) and a worm gear (312). The two screws (311) are respectively located at the left and right ends inside the rotating rod (2), and both ends are rotatably connected to the inner wall of the rotating rod (2). The two worm gears (312) are respectively sleeved on the middle end surface of the two screws (311) and fixedly connected to the screws (311). The threads on the front and rear ends of the screw (311) are in opposite directions.

4. The printer label roll mounting device according to claim 3, characterized in that: The inner diameter support assembly (32) includes a bent plate (321) and an arc plate (322). There are four bent plates (321), which are respectively sleeved on the front and rear end surfaces of the two screws (311) and are threadedly connected to the screws (311). There are two bent plates (321) on each of the front and rear sides, which extend from the front and rear sides of the rotating rod (2) and are slidably connected to the rotating rod (2). The arc plate (322) is sleeved on the front and rear sides of the rotating rod (2) and is movably connected to the rotating rod (2), and is fixedly connected to one end of the four bent plates (321) extending from the rotating rod (2).

5. The printer label roll mounting device according to claim 4, characterized in that: Rubber anti-slip pads (4) are fixedly connected to the surfaces of the two arc-shaped plates (322) that are far apart from each other.

6. The printer label roll mounting device according to claim 3, characterized in that: The self-locking drive component (33) includes a worm (331) and a knob (332). The worm (331) is disposed on the upper side of the two worm wheels (312) and meshes with the worm wheels (312). The left and right ends of the worm (331) are rotatably connected to the left and right ends of the rotating rod (2), and the right end extends out of the rotating rod (2) and passes through the rotating column (21) at the right end, and is rotatably connected to the rotating column (21). The knob (332) is fixedly connected to the right end of the worm (331).

7. The printer label roll mounting device according to claim 1, characterized in that: The two rotating columns (21) extend from opposite ends into the rotating groove (103), and limit plates (5) are fixedly connected to the front and rear sides respectively.

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