A highly stable cover structure for printers

Abstract

This utility model provides a highly stable cover structure for a printer, comprising: a cover for mounting on the printer body; and a cutting mechanism disposed within the cover, the cutting mechanism including a telescopically oriented pressing member, a flexible paper-pressing member driven to extend and retract by the pressing member, and a cutter disposed within the paper-pressing member and driven to extend and retract by the pressing member, the cutting edge of the cutter penetrating the paper-pressing member near the end of the printer body; when the pressing member is pressed, the paper-pressing member extends and is compressed and deformed by the printer body to press the paper output end, while the cutter extends without being limited by the printer body and cuts the paper output end. This design allows the cutter to extend along with the paper-pressing member and be flexibly wrapped by it when the user presses the pressing member after the cover is opened, improving printer safety. Simultaneously, when the cover is closed, the paper-pressing member is deformed and compressed by the printer body to press the paper on both sides of the cutter, ensuring stable paper cutting.

Description

Technical Field

[0001] This utility model relates to the field of printers, specifically to a highly stable cover structure for printers. Background Technology

[0002] Currently, label printers often produce uneven cuts when tearing off the paper after printing, severely impacting the user experience. To address this issue, existing products typically integrate a cutting mechanism with a blade inside the printer cover. Users can press the drive mechanism to neatly cut the paper after printing, resulting in a clean, flat cut.

[0003] However, existing covers with cutting mechanisms have two major drawbacks: First, when the cutter is operated with the cover open, the blade is directly exposed, posing a safety hazard to the user; second, the paper-pressing rubber block is usually located on the side of the cutter near the paper exit, only securing the outer end of the paper, while the inner end relies on the internal pressure rollers of the machine mechanism for clamping. After long-term use or accidental impact, the pressure of the machine mechanism's pressure rollers may weaken, and the cutter may also wear and become dull. In this case, downward cutting can easily cause the inner end of the paper to dent downwards, resulting in failure to cut or a misaligned cut, seriously affecting the stability of the cutting process.

[0004] The research objective of this utility model is to design a highly stable cover structure for printers to address the problems existing in the prior art. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a highly stable cover structure for printers, which can effectively solve the problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A highly stable cover structure for a printer includes:

[0008] A cover, used to cover the body of the corresponding printer;

[0009] A cutting mechanism is provided inside the cover body. The cutting mechanism includes a telescopically oriented pressing member, a flexible paper pressing member that is driven to extend and retract by the pressing member, and a cutter located inside the paper pressing member and driven to extend and retract by the pressing member. The cutting edge of the cutter penetrates the paper pressing member at one end near the machine body. When the pressing member is pressed, the paper pressing member extends and is compressed and deformed by the machine body to press the paper output end of the printing paper. The cutter extends without being limited by the machine body and cuts off the paper output end.

[0010] Furthermore, the paper pressing component is hollow, and the side wall of the paper pressing component is circumferentially concave to form a compression part and the bottom is thickened to form a paper pressing part. The cross-section of the compression part is V-shaped with the opening facing outward, and the paper pressing part is provided with a through hole that matches the blade end of the lower end of the cutter.

[0011] Furthermore, the pressing member is vertically and horizontally limited to move through the top of the cover and extends to one side to form a driving part. The cover is provided with a return spring that pushes the pressing member upward. The upper ends of the paper pressing member are provided with connecting ends for fixing and plugging into the driving part on both sides. The upper ends of the cutter are provided with slots for fixing and locking into the driving part on both sides. The cover is provided with two guide plates that penetrate downward through the driving part and extend to the through hole at their lower ends. The cutter gap is located between the two guide plates.

[0012] Furthermore, the bottom of the cover is provided with a guide hole, the compression part is located in the middle of the paper pressing part, the lower half of the paper pressing part is located in the guide hole, and the width of the guide hole gradually decreases from top to bottom.

[0013] Furthermore, it also includes a locking mechanism, which includes rotatable limiting members on both sides of the bottom of the cover and two tension springs connecting the two limiting members and the cover; when the cover is opened, the two limiting members are pulled by the two tension springs and the upper gap corresponds to the lower end of the pressing member; when the cover is closed, the lower ends of the two limiting members are guided upward by the limiting mechanism and the upper ends are moved away from the pressing member.

[0014] Furthermore, one end of the cover is provided with several limiting grooves that extend laterally and are used for several rotating rods of the machine body to pass through at an upper limit. Several rotating grooves are recessed in the cover body, and the upper ends of several rotating rods are provided with rotating parts that are rotatably sleeved in several rotating grooves.

[0015] Therefore, the beneficial effects of this utility model are:

[0016] 1. By placing the cutter within a flexible paper-pressing component and driving both to extend and retract together via a pressing component, when the user presses the pressing component after opening the cover, the cutter extends along with the paper-pressing component and is flexibly enclosed, preventing injury to the user and improving printer safety. Simultaneously, when the cover is closed, the paper-pressing component deforms and presses firmly against the paper output end under the limiting action of the machine body, simultaneously pressing the paper on both sides of the cutter to prevent displacement. This ensures the cutter can extend unobstructed into the cutting channel to stably cut the paper output end, thereby improving the stability of the paper-pressing component and ensuring long-term paper-cutting stability.

[0017] 2. The paper-pressing component is hollow, with its side walls concave to form a compression section and its bottom thickened to form a pressing section. The compression section has a V-shaped cross-section with the opening facing outwards. This allows the paper-pressing component to deform through folding under pressure, further increasing its compression elasticity and thus its clamping force. The pressing section has a through-hole that matches the cutting channel and the blade end of the cutter. Given that placing the cutter inside the paper-pressing component would require a hollow structure and potentially lead to insufficient clamping force, the above structure, with the addition of the compression and pressing sections, allows the paper-pressing component to undergo long-stroke compression through the compression section when the pressing component is pressed down. Furthermore, the thickened pressing section increases the deformation force at the bottom of the paper-pressing component, thereby significantly improving its clamping force and further enhancing its paper-pressing stability.

[0018] 3. By adding two guide plates to separate the cutter and the paper pressing component, not only will the cutter not cut and damage the paper pressing component when it extends or retracts, but it will also prevent the paper pressing component from squeezing the cutter when it is deformed under pressure, which would cause the cutter to deform and become skewed. This allows the cutter and the paper pressing component to work together to cut the paper while also being isolated from each other, thereby improving the service life of the cutting mechanism.

[0019] 4. By adding guide holes, together with the two guide plates, the vertical extension and retraction of the paper pressing component is limited and guided, which further improves the extension and retraction stability of the paper pressing component and can avoid the situation where the paper pressing component is excessively deformed and cannot be restored.

[0020] 5. By adding two limiting components, when the lid is opened, the two limiting components are pulled by two tension springs, with the upper gap corresponding to the lower end of the pressing component. When the lid is closed, the lower ends of the two limiting components are guided upward by two protrusions, and the upper ends swing downward away from the pressing component. This completely eliminates the situation where the cutter is exposed outside the lid after opening, completely avoiding the possibility of the cutter causing injury to the user after opening the lid, and further improving the safety of the cutting mechanism. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the printer's structure.

[0022] Figure 2 This is a cross-sectional view of the printer.

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0024] Figure 4 A schematic diagram of the structure after removing part of the body and the cutting mechanism from the cover.

[0025] Figure 5 This is a schematic diagram of the organism's structure.

[0026] Figure 6This is an exploded view of the paper pressing component and the cutter. Detailed Implementation

[0027] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0028] refer to Figure 1-6 A highly stable cover structure for a printer, comprising:

[0029] Cover 2 is used to cover the body 1 of the corresponding printer. Specifically, a paper cavity 3, a paper outlet 4, and a paper output channel 5 connecting the paper cavity 3 and the paper outlet 4 are formed between the body 1 and the cover 2. The body 1 is provided with a paper cutting channel 11 that is vertically connected to the paper output channel 5.

[0030] A cutting mechanism 6 is disposed within the cover 2. The cutting mechanism 6 includes a telescopically oriented pressing member 61, a flexible paper-pressing member 62 driven to extend and retract by the pressing member 61, and a cutter 63 disposed within the paper-pressing member 62 and driven to extend and retract by the pressing member 61. The blade end 631 of the cutter 63 penetrates the paper-pressing member 62 near the end of the machine body 1. When the pressing member 61 is pressed, the paper-pressing member 62 extends and is limited and compressed by the machine body 1 to press the paper output end. The cutter 63 extends without being limited by the machine body 1 and cuts the paper output end. Specifically, the paper-pressing member 62 is perpendicular to the paper output channel 5, and the cutter 63 corresponds to the paper cutting channel 11. The paper-pressing member 62 can be made of a highly elastic and high-friction material such as silicone or rubber.

[0031] The above structure, by placing the cutter 63 inside the flexible paper-pressing component 62 and driving both to extend and retract together through the pressing component 61, ensures that when the user presses the pressing component 61 after the cover is opened, the cutter 63 extends together with the paper-pressing component 62 and is flexibly wrapped by it, thus preventing injury to the user and improving the safety of printer use. At the same time, after the cover is closed, under the limiting and blocking action of the machine body 1, the paper-pressing component 62 can deform and press the paper output end of the printed paper, and simultaneously press the printed paper on both sides of the cutter 63 to prevent displacement, ensuring that the cutter 63 can extend into the paper cutting channel 11 without obstruction to stably cut the paper output end, thereby improving the paper pressing stability of the paper-pressing component 62. As a result, after the cover 2 is installed on the machine body 1, the paper cutting stability of the cutter 63 can be ensured for a long time.

[0032] To improve the clamping force of the paper pressing component 62, the paper pressing component 62 is hollow and its side wall is circumferentially concave to form a compression part 621, and its bottom is thickened to form a paper pressing part 622. The cross-section of the compression part 621 is V-shaped with the opening facing outward, so that the paper pressing component 62 can be folded and deformed by the compression part 621 after being compressed, thereby further improving the compression elasticity of the paper pressing component 62 and further improving the clamping force of the paper pressing component 62. The paper pressing part 622 is provided with a through hole 623 that is adapted to the cutting channel 11 and the blade end 631 at the lower end of the cutter 63. Given that placing the cutter 63 inside the paper pressing member 62 would require the paper pressing member 62 to be hollow, which could easily lead to insufficient clamping force, the above structure, through the addition of the compression part 621 and the paper pressing part 622, allows the paper pressing member 62 to be compressed by the compression part 621 through a long stroke when the pressing member 61 presses down on the paper pressing member 62. Furthermore, the thickened paper pressing part 622 increases the deformation force at the bottom of the paper pressing member 62, thereby significantly improving the clamping force of the paper pressing member 62 and further enhancing the stability of the paper pressing member 62.

[0033] To improve the telescopic stability of the cutter 63 and the paper pressing component 62, the pressing component 61 is vertically and horizontally limited to extend through the top of the cover 2 and extends towards the paper outlet 4 on one side to form a driving part 611. The cover 2 is provided with a return spring 21 that pushes the pressing component 61 upward. The upper ends of the paper pressing component 62 are provided with connecting ends 624 for fixing and plugging into the driving part 611 on both sides. The upper ends of the cutter 63 are provided with slots 632 for fixing and locking into the driving part 611 on both sides. The cover 2 is provided with two guide plates 22 that penetrate downward through the driving part 611 and extend to the through hole 623 at their lower ends. The gap of the cutter 63 is located between the two guide plates 22. The above structure, by adding two guide plates 22, separates the cutter 63 and the paper pressing component 62. This not only prevents the cutter 63 from cutting and damaging the paper pressing component 62 when it extends or retracts, but also prevents the paper pressing component 62 from squeezing the cutter 63 when it is deformed under pressure, thus avoiding the situation where the cutter 63 is deformed and skewed. This allows the cutter 63 and the paper pressing component 62 to be isolated from each other while cooperating to cut the paper, thereby improving the service life of the cutting mechanism 6.

[0034] To further improve the stability of the paper pressing component 62's extension and retraction, the bottom of the cover 2 is provided with a guide hole 23 that vertically connects to the paper output channel 5 and corresponds to the paper cutting channel 11. The compression part 621 is located in the middle of the paper pressing component 62, and the lower half of the paper pressing component 62 is located within the guide hole 23. The width of the guide hole 23 gradually decreases from top to bottom. Thus, by adding the guide hole 23, together with the two guide plates 22, the vertical extension and retraction of the paper pressing component 62 is limited and guided, further improving the extension and retraction stability of the paper pressing component 62 and preventing excessive deformation of the paper pressing component 62 that could not be restored.

[0035] To further enhance safety, a locking mechanism 7 is also included. The locking mechanism 7 comprises rotatable limiting members 71 located on both sides of the bottom of the cover 2, and two tension springs 72 connecting the two limiting members 71 and the cover 2. The top of the body 1 has protruding points 12 on both sides corresponding to the two limiting members 71 and angled upwards. This structure, through the addition of the two limiting members 71, ensures that when the cover is opened, the two limiting members 71 are pulled by the two tension springs 72, with their upper ends corresponding to the lower end of the pressing member 61. When the cover is closed, the lower ends of the two limiting members 71 are guided upwards by the two protruding points 12, and their upper ends swing downwards away from the pressing member 61. This completely prevents the cutter 63 from being exposed outside the cover 2 after opening, completely avoiding any potential injury to the user from the cutter 63 after opening, and further improving the safety of the cutting mechanism 6.

[0036] To improve the connection strength between the cover 2 and the body 1, the ends of the cover 2 and the body 1 away from the paper outlet 4 are respectively provided with a plurality of laterally extending limiting grooves 24, and a plurality of rotating rods 13 extending upward through the plurality of limiting grooves 24 into the cover 2 with a width adapted to each limiting groove 24. The cover 2 is recessed with a plurality of rotating grooves, and the upper ends of the plurality of rotating rods 13 are laterally extended with rotating parts 131 that are rotatably fitted within the plurality of rotating grooves. This structure, through the locking and limiting action of the plurality of limiting grooves 24, can prevent the rotating parts 131 of the plurality of rotating rods 13 from dislodging from the plurality of rotating grooves after lateral displacement, thereby ensuring the strength of the rotatable connection between the cover 2 and the body 1 through the rotating rods 13 and rotating grooves, reducing the probability of the cover 2 detaching from the body 1 after the printer is dropped, and improving the overall stability of the printer structure.

[0037] Specifically, the paper output channel 5 is arranged horizontally, and the paper cavity 3 and the paper output channel 5 are connected by an inclined printing channel 8. The machine body 1 is provided with a printer core 9 corresponding to the printing channel 8 and used for printing. The printer core 9 includes a paper guide roller 91 and a print head 92 that is pushed against the outer wall of the paper guide roller 91 by the elastic force of the elastic element 93. Its specific structure is not the focus of this invention and will not be described in detail here.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high stability cover structure for a printer, characterized by, include: Cover (2), used to cover the body (1) of the corresponding printer; A cutting mechanism (6) is provided inside the cover (2). The cutting mechanism (6) includes a telescopically oriented pressing member (61), a flexible paper pressing member (62) driven to telescopically extend by the pressing member (61), and a cutter (63) provided inside the paper pressing member (62) and driven to telescopically extend by the pressing member (61). The blade end (631) of the cutter (63) penetrates the paper pressing member (62) near the end of the machine body (1). When the pressing member (61) is pressed, the paper pressing member (62) extends out and is limited and compressed by the machine body (1) to press the paper output end of the printing paper. The cutter (63) extends out without being limited by the machine body (1) and cuts off the paper output end.

2. A high stability cover structure for a printer as claimed in claim 1, wherein, The paper pressing component (62) is hollow and the side wall of the paper pressing component (62) is circumferentially concave to form a compression part (621) and the bottom is thickened to form a paper pressing part (622). The cross section of the compression part (621) is V-shaped with the opening facing outward. The paper pressing part (622) is provided with a through hole (623) that is adapted to the blade end (631) at the lower end of the cutter (63).

3. A high stability cover structure for a printer as claimed in claim 2, wherein, The pressing member (61) is vertically and vertically limited to the top of the cover (2) and extends to one side to form a driving part (611). The cover (2) is provided with a return spring (21) that pushes the pressing member (61) upward. The upper end of the paper pressing member (62) extends upward on both sides and is provided with a connecting end (624) for fixing and plugging in the driving part (611). The upper end of the cutter (63) is recessed on both sides and is provided with a slot (632) for fixing and locking in the driving part (611). The cover (2) is provided with two guide plates (22) that penetrate downward through the driving part (611) and extend downward to the perforation (623). The gap of the cutter (63) is located between the two guide plates (22).

4. A high stability cover structure for a printer as claimed in claim 2, wherein, The bottom of the cover (2) is provided with a guide hole (23), the compression part (621) is located in the middle of the paper pressing part (62), the lower half of the paper pressing part (62) is located in the guide hole (23), and the width of the guide hole (23) gradually decreases from top to bottom.

5. A high stability cover structure for a printer as claimed in claim 1, wherein, It also includes a locking mechanism (7), which includes a limiting member (71) rotatably disposed on both sides of the bottom of the cover (2) and two tension springs (72) connecting the two limiting members (71) and the cover (2); when the cover is opened, the two limiting members (71) are pulled by the two tension springs (72) and the upper end gap corresponds to the lower end of the pressing member (61); when the cover is closed, the lower end of the two limiting members (71) is limited and guided by the body (1) to swing upward and the upper end swings downward away from the pressing member (61).

6. A highly stable cover structure for a printer as described in claim 1, characterized in that, One end of the cover (2) is provided with several limiting grooves (24) that extend laterally and are used for several rotating rods (13) of the body (1) to pass through to the upper limit. Several rotating grooves are recessed in the cover (2). The upper ends of several rotating rods (13) are provided with rotating parts (131) that are rotatably sleeved in several rotating grooves.

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