Springback type paper width baffle stepless adjusting device

Abstract

The utility model discloses a springback type paper width baffle stepless adjusting device which comprises a paper bin used for containing a paper roll, the paper bin comprises a bottom plate, a first side plate and a second side plate, the bottom plate is an arc-shaped plate protruding outwards, and the first side plate and the second side plate are parallel to each other and installed at the two ends of the bottom plate respectively; a baffle is slidably connected into the paper bin and is parallel to the first side plate and the second side plate, and the baffle can slide back and forth between the first side plate and the second side plate. A gap for containing a paper roll is reserved between the baffle and the first side plate, and an ejecting piece used for driving the baffle to eject the paper roll is arranged between the baffle and the second side plate. The baffle and the first side plate are each provided with a paper roll positioning piece used for fixing a paper roll. The paper roll fixing device is in a stepless adjusting mode, can be suitable for paper rolls with any width within a certain range, is wide in application range and good in fixing effect, and guarantees the printing quality.

Description

Technical Field

[0001] This application relates to the technical field of printers, and particularly relates to a stepless adjustment device for a rebound paper width baffle. Background Art

[0002] The paper feeding system of a printer is one of its core components, and its function is to ensure that the paper enters the printing area smoothly and accurately. In traditional printers, the size of the paper bin that controls the paper feeding is standardized, which means it can only accommodate a paper roll of a specific size. This fixed design limits the user's use of different sizes of label paper. If different specifications of labels need to be printed, the user has to purchase printers that adapt to different paper roll sizes, which undoubtedly increases the economic burden on consumers.

[0003] To solve this problem, a paper bin with adjustable width has been invented and appears on the market. This type of printer uses a stepwise adjustment method to control the paper feeding. This design usually includes a series of baffles or teeth with fixed intervals to adapt to paper rolls of different widths. When designing, multiple paper blocking positions are preset to adapt to common paper widths.

[0004] However, this method has limitations. When encountering a non-standard paper roll width or a width between two paper blocking positions, the paper may not be completely covered by the baffle, resulting in unstable paper feeding, and even may shift or wrinkle during the printing process, affecting the printing quality and efficiency. Utility Model Content

[0005] Therefore, this application provides a stepless adjustment device for a rebound paper width baffle to solve the problem in the prior art that the fixed distance between the baffle positions limits the applicable paper roll width.

[0006] To achieve the above object, this application provides the following technical solutions:

[0007] A stepless adjustment device for a rebound paper width baffle includes a paper bin for accommodating a paper roll. The paper bin includes a bottom plate, a first side plate, and a second side plate. The bottom plate is an arc-shaped plate protruding outward. The first side plate and the second side plate are parallel to each other and are respectively installed at both ends of the bottom plate. A baffle is slidably connected in the paper bin. The baffle is parallel to the first side plate and the second side plate, and the baffle can slide back and forth between the first side plate and the second side plate. A gap for placing the paper roll is left between the baffle and the first side plate, and a pressing member for driving the baffle to press tightly against the paper roll is arranged between the baffle and the second side plate. Paper roll positioning members for fixing the paper roll are arranged on both the baffle and the first side plate.

[0008] Optionally, a track groove is opened on the side wall of the bottom plate. The length direction of the track groove is perpendicular to the first side plate and the second side plate. A track rib is arranged on the baffle, and the track rib is adapted to the track groove.

[0009] Further optionally, the baffle plate is extended to one side with an extension plate, the extension plate is adapted to the shape of the bottom plate, and the track ribs are arranged on the extension plate.

[0010] Optionally, the tightening member is a spring.

[0011] Further optionally, cylinders are fixed to the sides of the baffle plate and the second side plate that are close to each other, and the two ends of the spring are respectively fixed to the two cylinders.

[0012] Optionally, the paper roll positioning member is a turntable, the axis of which is perpendicular to the baffle plate; two turntables are provided, which are respectively arranged on the side surfaces of the baffle plate and the first side plate that are close to each other, and the turntables can rotate freely.

[0013] Further optionally, a cylinder is fixed at the center of one side of the turntable, and the end of the cylinder extends outward into a cone to form a buckle. The cylinder is provided with a dividing groove along its own axis, and the dividing groove divides the cylinder into two parts; the baffle plate and the first side plate are both provided with a circular hole for the cylinder to pass through, and the diameter of the circular hole is smaller than the diameter of the buckle; and the distance from the buckle to the turntable is greater than the length of the circular hole.

[0014] Further optionally, a boss is coaxially fixed to a side of the turntable facing away from the cylinder, and the paper roll shaft hole can be sleeved on the boss.

[0015] Compared with the prior art, this application has at least the following beneficial effects:

[0016] 1. The baffle can slide back and forth between the first side plate and the second side plate and can stay at any position. It can fix paper rolls of any width within a certain range, expanding the scope of application. The paper rolls can be better fixed under the action of the tightening member to ensure printing quality and efficiency.

[0017] 2. With the cooperation of the track groove and the track rib, the baffle can slide more stably and smoothly in the paper bin. The extension plate can increase the matching area between the baffle bottom plate, thereby improving the stability of the baffle and preventing the baffle from tilting during sliding.

[0018] 3. The distance between the buckle and the turntable is greater than the length of the round hole, so that after the turntable is installed, there is a gap between the buckle and the side plate and the baffle, and the turntable can rotate with the paper roll to prevent the paper roll from being tightened and unable to rotate due to excessive tightening force.

[0019] 4. The setting of the boss can position the paper roll to prevent it from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / deletion / attribution division, specific shapes, positional relationships, connection methods, dimensional ratio relationships, etc. of certain units (components) based on the technical concepts disclosed in the present application and the exemplary drawings.

[0021] Figure 1 It is a schematic structural diagram of a rebound type paper width baffle stepless adjustment device provided by an embodiment of the present application;

[0022] Figure 2 For Figure 1 It is a schematic structural diagram of the middle paper bin;

[0023] Figure 3 For Figure 1 It is a schematic structural diagram of the baffle and the extension plate in [the relevant part];

[0024] Figure 4 It is a partial structural side view of a rebound type paper width baffle stepless adjustment device provided by an embodiment of the present application;

[0025] Figure 5 For Figure 1 It is a schematic structural diagram of the turntable and the convex platform from one perspective in [the relevant part];

[0026] Figure 6 For Figure 1 It is a schematic structural diagram of the turntable and the convex platform from another perspective in [the relevant part].

[0027] Explanation of reference numerals:

[0028] 1. Paper bin; 101. Bottom plate; 102. First side plate; 103. Second side plate; 2. Baffle; 3. Track groove; 4. Track rib; 5. Extension plate; 6. Tightening member; 7. Spring; 8. Cylinder; 9. Turntable; 10. Cylindrical body; 11. Buckle; 12. Partition groove; 13. Round hole; 14. Convex platform. Detailed implementation manners

[0029] The present application will be further described in detail below with reference to the drawings through specific embodiments.

[0030] In the description of the present application: Unless otherwise specified, "a plurality of" means two or more. The terms "first", "second", "third", etc. in the present application are intended to distinguish the objects being referred to, and do not have special significance in terms of technical connotations (for example, it should not be understood as emphasizing the importance level or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0031] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually indications of the general relative position relationship for the convenience of intuitive understanding with reference to the attached drawings, rather than absolute limitations on the position relationship in the actual product.

[0032] A stepless adjusting device for a rebound paper width baffle, referring to Figure 1 , includes a paper bin 1 for accommodating a paper roll. The paper bin 1 includes a bottom plate 101, a first side plate 102, and a second side plate 103. The bottom plate 101 is an arc-shaped plate protruding outward. The first side plate 102 and the second side plate 103 are parallel to each other and are respectively installed at both ends of the length direction of the bottom plate 101, so that the first side plate 102, the second side plate 103, and the bottom plate 101 enclose a semi-surrounding structure that can wrap around the outside of the paper roll.

[0033] Referring to Figure 2 and Figure 3 , a baffle 2 is slidably connected in the paper bin 1. The shape of the contact position between the baffle 2 and the bottom plate 101 is adapted to the shape of the bottom plate 101. The baffle 2 is parallel to the first side plate 102 and the second side plate 103, and the baffle 2 can slide back and forth between the first side plate 102 and the second side plate 103. Specifically, two parallel track grooves 3 are provided on the side wall of the bottom plate 101. The length directions of the track grooves 3 are perpendicular to the first side plate 102 and the second side plate 103. Two track ribs 4 are provided on the baffle 2. The positions of the track ribs 4 are adapted to the track grooves 3. Among them, the track grooves 3 and the track ribs 4 are rectangular shapes with adapted shapes.

[0034] Furthermore, in order to keep the baffle 2 stable and not inclined during the sliding process, an extension plate 5 extends from the position of the baffle 2 close to the bottom plate 101 to one side of the baffle 2. The shape of the extension plate 5 is adapted to the shape of the bottom plate 101, and the track ribs 4 are fixed on the side surface of the extension plate 5 facing the bottom plate 101. By means of the extension plate 5, the contact area between the baffle 2 and the bottom plate 101 is increased, and the stability of the baffle 2 is improved.

[0035] In this embodiment, the extension plate 5 is provided on the side of the baffle 2 facing the first side plate 102. After the paper roll is placed between the first side plate 102 and the baffle 2, there is still a gap between the extension plate 5 and the paper roll.

[0036] Referring to Figure 1 , there is a gap for placing the paper roll between the baffle 2 and the first side plate 102, and a tightening member 6 for driving the baffle 2 to press tightly against the paper roll is provided between the baffle 2 and the second side plate 103. During use, the paper roll is placed flat between the baffle 2 and the first side plate 102 (the axis direction of the paper roll is perpendicular to the baffle 2), and then the tightening member 6 is used to drive the baffle 2 to press tightly against the paper roll, so that the paper roll can be fixed.

[0037] In this embodiment, the tensioning member 6 is a spring 7, which is a compression spring 7 and has a pre-tightening force to push the baffle 2 toward the first side plate 102. Correspondingly, a cylinder 8 is fixed on the side of the baffle 2 and the second side plate 103 that are close to each other (refer to Figure 2 and Figure 4 ), the two ends of the spring 7 are fixed on the two cylinders 8 by welding.

[0038] Reference Figures 4 - 6 In order to ensure that the paper roll can be fed smoothly, a paper roll positioning member for fixing the paper roll is provided on the baffle plate 2 and the first side plate 102 .

[0039] The paper roll positioning member is a circular rotating disk 9, and the axis of the rotating disk 9 is perpendicular to the baffle 2. Two rotating disks 9 are provided, which are detachably mounted on the side surfaces of the baffle 2 and the first side plate 102 close to each other, and the rotating disks 9 can rotate freely.

[0040] For easy disassembly and assembly, a column 10 is fixed at the center of one side of the turntable 9, and a truncated cone is extended outward from the end of the column 10 to form a buckle 11. A dividing groove 12 is provided on the column 10 along its own axial direction, and the dividing groove 12 divides the column 10 into two parts, wherein the column 10 can be slightly shaken on the turntable 9, so that the two parts of the separated column 10 can be close to or away from each other in a small range.

[0041] Correspondingly, a circular hole 13 for the cylinder 10 to pass through is provided on the baffle 2 and the first side plate 102. The diameter of the circular hole 13 is smaller than the diameter of the buckle 11, so that after the cylinder 10 passes through the circular hole 13, the buckle 11 can be stuck on the baffle 2 and the first side plate 102, and will not directly pass through the circular hole 13, so that the turntable 9 is installed on the baffle 2 and the first side plate 102. Among them, the distance from the buckle 11 to the turntable 9 (that is, the length of the cylinder 10) is greater than the length of the circular hole 13, so as to ensure that after the turntable 9 is installed, there is a certain gap between the buckle 11 and the baffle 2 and the first side plate 102, and the turntable 9 can rotate smoothly.

[0042] When installing the turntable 9, the two parts of the column 10 are pinched and deformed into the dividing groove 12, so that the buckle 11 can smoothly pass through the circular hole 13. After the column 10 passes through the circular hole 13, the column 10 is released, and the column 10 is restored, and the buckle 11 is stuck on one side of the circular hole 13, and a gap is left between the first side plate 102 and the baffle 2.

[0043] Furthermore, in order to prevent the paper roll from falling off, a circular boss 14 is coaxially fixed on the side of the turntable 9 away from the column 10 , and the paper roll shaft hole can be sleeved on the boss 14 .

[0044] The implementation principle of the embodiment of this application is as follows: Slide the baffle 2 to one side of the second side plate 103, place the paper roll between the baffle 2 and the first side plate 102, and adjust the position of the paper roll so that the paper roll shaft hole can be sleeved on the boss 14 of the first side plate 102. Then slowly release the baffle 2 so that the boss 14 on the baffle 2 is inserted into the paper roll shaft hole. At the same time, the spring 7 presses the file tightly against the paper roll to complete the fixation of the paper roll.

[0045] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be regarded as within the scope described in this specification.

Claims

1. A stepless adjusting device for a resilient paper width baffle, comprising a paper bin (1) for accommodating a paper roll, the paper bin (1) including a bottom plate (101), a first side plate (102) and a second side plate (103), the bottom plate (101) being an outwardly convex arc-shaped plate, the first side plate (102) and the second side plate (103) being parallel to each other and respectively installed at both ends of the bottom plate (101); characterized in that: A baffle (2) is slidably connected inside the paper bin (1), the baffle (2) is parallel to the first side plate (102) and the second side plate (103), and the baffle (2) can slide back and forth between the first side plate (102) and the second side plate (103); a gap for placing a paper roll is left between the baffle (2) and the first side plate (102), and a tightening member (6) for driving the baffle (2) to press against the paper roll is provided between the baffle (2) and the second side plate (103); and a paper roll positioning member for fixing the paper roll is provided on both the baffle (2) and the first side plate (102).

2. The stepless adjustment device for the rebound type paper width baffle according to claim 1, wherein: A track groove (3) is provided on the side wall of the bottom plate (101), and the length direction of the track groove (3) is perpendicular to the first side plate (102) and the second side plate (103); and a track rib (4) is provided on the baffle plate (2), and the track rib (4) is adapted to the track groove (3).

3. The stepless adjustment device for the resilient paper width baffle according to claim 2, characterized in that: The baffle plate (2) is provided with an extension plate (5) extending to one side, the extension plate (5) is adapted to the shape of the bottom plate (101), and the track rib (4) is arranged on the extension plate (5).

4. The stepless adjustment device for the resilient paper width baffle according to claim 1, characterized in that: The pressing member (6) is a spring (7).

5. The stepless adjustment device for the resilient paper width baffle according to claim 4, characterized in that: Cylinders (8) are fixed to the mutually adjacent sides of the baffle plate (2) and the second side plate (103), and the two ends of the spring (7) are respectively fixed to the two cylinders (8).

6. The stepless adjustment device for the resilient paper width baffle according to claim 1, wherein: The paper roll positioning member is a rotating disk (9), the axis of which is perpendicular to the baffle (2); two rotating disks (9) are provided, which are respectively arranged on the side surfaces of the baffle (2) and the first side plate (102) close to each other, and the rotating disks (9) can rotate freely.

7. The stepless adjustment device for the resilient paper width baffle according to claim 6, characterized in that: A column (10) is fixed at the center of one side of the turntable (9), and the end of the column (10) extends outward to form a truncated cone to form a buckle (11). The column (10) is provided with a dividing groove (12) along its own axial direction, and the dividing groove (12) divides the column (10) into two parts; the baffle (2) and the first side plate (102) are both provided with a circular hole (13) for the column (10) to pass through, and the diameter of the circular hole (13) is smaller than the diameter of the buckle (11); and the distance from the buckle (11) to the turntable (9) is greater than the length of the circular hole (13).

8. The stepless adjustment device for the resilient paper width baffle according to claim 7, wherein: A boss (14) is coaxially fixed on the side of the rotating disk (9) facing away from the column (10), and the paper roll shaft hole can be sleeved on the boss (14).

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