A printer equipped with a paper cutting mechanism

Abstract

This utility model provides a printer equipped with a paper cutting mechanism, comprising: a housing, with a cover on one side, forming a paper cavity, a paper outlet, and a paper output channel connecting the paper cavity and the paper outlet between the housing and the cover; the housing having a paper cutting channel vertically connected to the paper output channel; and a cutting mechanism disposed within the cover, comprising a telescopically oriented pressing member, a flexible paper pressing member driven by the pressing member to extend vertically and correspond to the paper output channel, and a cutter disposed within the paper pressing member and corresponding to the paper cutting channel, the cutter being connected to the pressing member and having its blade end penetrating the end of the paper pressing member near the paper output channel. 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 the safety of printer use. Simultaneously, after the cover is closed, the paper pressing member can be deformed and pressed against the paper on both sides of the cutter by the limiting and blocking effect of the housing, ensuring stable paper cutting by the cutter.

Description

Technical Field

[0001] This utility model relates to the field of printers, specifically to a printer equipped with a paper cutting mechanism. Background Technology

[0002] Label printers often produce uneven cuts when tearing paper after printing, leading to a significant decline in user experience. To address this, existing label printers are equipped with a paper cutting mechanism with a cutter to trim the paper. After printing is complete, pressing the pressing element that drives the cutter trims the paper, resulting in a clean cut.

[0003] However, in existing printers, the paper cutting mechanism exposes the cutter directly when the cover is opened and the cutter is pressed, posing a safety hazard to the user. Furthermore, the rubber pressure block for the paper is typically located on the side of the cutter closest to the printer exit, meaning the rubber block only secures the outer end of the paper, while the inner end relies on the pressure rollers of the printing mechanism for fixation. This can lead to situations where, after prolonged use or accidental impact, the pressure of the printing mechanism's pressure rollers loosens or the cutter becomes dull, causing the inner end of the paper to dent and fail to cut properly or even cut crookedly, making it difficult to ensure the stability of the paper cutting.

[0004] The research objective of this utility model is to design a printer equipped with a paper cutting mechanism 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 printer equipped with a paper cutting mechanism, which can effectively solve the problems existing in the prior art.

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

[0007] A printer equipped with a paper cutting mechanism includes:

[0008] The housing has a cover on one side, and a paper cavity, a paper outlet, and a paper outlet channel connecting the paper cavity and the paper outlet are formed between the housing and the cover. The housing also has a paper cutting channel that is vertically connected to the paper outlet channel.

[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 by the pressing member to extend and retract vertically and corresponds to the paper output channel, and a cutter disposed inside the paper pressing member and corresponding to the paper cutting channel. The cutter is connected to the pressing member and its blade tip penetrates the paper pressing member near the end of the paper output channel. When the pressing member is pressed, the paper pressing member extends into the paper output channel and is compressed and deformed to press the paper output end of the printing paper. The cutter extends through the paper output channel to the paper cutting channel 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. The paper pressing part is provided with a through hole that is adapted to the paper cutting channel and the blade end of the lower end of the cutter.

[0011] Furthermore, the pressing member is vertically and horizontally limited to extend through the top of the cover and extends towards the paper outlet on 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 grooves 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 the lower end. The cutter gap is located between the two guide plates.

[0012] Furthermore, the bottom of the cover is provided with a guide hole that vertically connects to the paper output channel and corresponds to the paper cutting channel. The compression part is located in the middle of the paper pressing member, and the lower half of the paper pressing member is located in the guide hole. 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. The top of the housing has protrusions on both sides corresponding to the two limiting members and the top is inclined. 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 two protrusions and the upper ends are lowered away from the pressing member.

[0014] Furthermore, the cover and the housing are respectively provided with a plurality of horizontally extending limiting grooves at the ends away from the paper outlet, and a plurality of connecting rods that penetrate upward through the plurality of limiting grooves into the cover body and whose width is adapted to each of the limiting grooves. The cover body is respectively provided with a plurality of rotating grooves, and the upper ends of the plurality of connecting rods are provided with rotating parts that are rotatably sleeved in the plurality of rotating grooves.

[0015] Furthermore, the paper output channel is arranged horizontally, and the paper cavity and the paper output channel are connected by an inclined printing channel. The housing contains a printer core corresponding to the printing channel and used for printing.

[0016] Therefore, the beneficial effects of this utility model are:

[0017] 1. By placing the cutter inside a flexible paper-pressing component and driving both to extend and retract together through 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 wrapped around it, preventing injury to the user and improving the safety of printer use. At the same time, when the cover is closed, under the limiting and blocking effect of the housing, the paper-pressing component can deform and press the paper output end of the printed paper, and simultaneously press the printed paper on both sides of the cutter to prevent displacement, ensuring that the cutter can extend into the paper cutting channel without obstruction to stably cut the paper output end, thereby improving the stability of the paper-pressing component and ensuring the long-term stability of the cutter's paper cutting.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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

[0022] Figure 1 This is a schematic diagram of a printer equipped with a paper cutting mechanism.

[0023] Figure 2 This is a cross-sectional structural diagram of a printer equipped with a paper cutting mechanism.

[0024] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0025] Figure 4 A schematic diagram of the structure after removing part of the shell and the cutting mechanism from the cover.

[0026] Figure 5 This is a schematic diagram of the shell structure.

[0027] Figure 6 This is an exploded view of the paper pressing component and the cutter. Detailed Implementation

[0028] 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:

[0029] refer to Figure 1-6 A printer equipped with a paper cutting mechanism includes:

[0030] The housing 1 has a cover 2 on one side, and a paper cavity 3, a paper outlet 4, and a paper outlet channel 5 connecting the paper cavity 3 and the paper outlet 4 are formed between the housing 1 and the cover 2. The housing 1 is provided with a paper cutting channel 11 that is vertically connected to the paper outlet channel 5.

[0031] A cutting mechanism 6 is disposed within the cover 2. The cutting mechanism 6 includes a telescopically extendable pressing member 61, a flexible paper-pressing member 62 driven by the pressing member 61 to extend vertically and correspond to the paper output channel 5, and a cutter 63 disposed within the paper-pressing member 62 and corresponding to the paper cutting channel 11. The cutter 63 is connected to the pressing member 61, and its blade end 631 penetrates the paper-pressing member 62 near the end of the paper output channel 5. When the pressing member 61 is pressed, the paper-pressing member 62 extends into the paper output channel 5 and compresses and deforms to press the paper output end, and the cutter 63 extends through the paper output channel 5 to the paper cutting channel 11 to cut off the paper output end. Specifically, the paper-pressing member 62 can be made of a highly elastic and high-friction material such as silicone or rubber.

[0032] 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 opening the cover, 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 effect of the housing 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 stability of the paper-pressing component 62 and ensuring the long-term stability of the paper cutting by the cutter 63.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] To further enhance safety, a locking mechanism 7 is also included. The locking mechanism 7 comprises rotatable restraints 71 located on both sides of the bottom of the cover 2, and two tension springs 72 connecting the two restraints 71 and the cover 2. The top of the housing 1 has protrusions 12 on both sides corresponding to the two restraints 71 and angled upwards. This structure, through the addition of the two restraints 71, ensures that when the cover is opened, the two restraints 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 restraints 71 are guided upwards by the two protrusions 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.

[0037] To improve the connection strength between the cover 2 and the housing 1, the ends of the cover 2 and the housing 1 away from the paper outlet 4 are respectively provided with a plurality of laterally extending limiting grooves 24, and a plurality of connecting 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 connecting 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 connecting 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 housing 1 through the connecting rods 13 and rotating grooves, reducing the probability of the cover 2 detaching from the housing 1 after the printer is dropped, and improving the overall stability of the printer structure.

[0038] 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 housing 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.

[0039] To improve the stability of paper output, the top of the housing 1 is provided with limiting ribs 14 extending along the paper output channel 5 and on both sides of the paper cutting channel 11. The addition of the limiting ribs 14 limits and guides the paper output, preventing the paper output from swinging too much and causing the cutter to cut the paper unstablely, thereby improving the stability of paper output.

[0040] 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 printer provided with a printing paper cutting mechanism, characterized by comprising: include: The housing (1) has a cover (2) on one side. A paper cavity (3), a paper outlet (4), and a paper outlet channel (5) connecting the paper cavity (3) and the paper outlet (4) are formed between the housing (1) and the cover (2). The housing (1) is provided with a paper cutting channel (11) that is vertically connected to the paper outlet channel (5). 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 by the pressing member (61) to extend vertically and correspond to the paper output channel (5), and a cutter (63) provided inside the paper pressing member (62) and corresponding to the paper cutting channel (11). The cutter (63) is connected to the pressing member (61) and its blade end (631) penetrates the paper pressing member (62) near one end of the paper output channel (5). When the pressing member (61) is pressed, the paper pressing member (62) extends into the paper output channel (5) and is compressed and deformed to press the paper output end of the printing paper. The cutter (63) extends through the paper output channel (5) to the paper cutting channel (11) and cuts off the paper output end.

2. A printer provided with a printing paper cutting mechanism 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 cutting channel (11) and the blade end (631) at the lower end of the cutter (63).

3. A printer provided with a printing paper cutting mechanism 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 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 member (61) upward. The upper end of the paper pressing member (62) is provided with connecting ends (624) for fixing and plugging in the driving part (611) on both sides. The upper end of the cutter (63) is provided with slots (632) for fixing and locking in 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 perforation (623) at the lower end. The gap of the cutter (63) is located between the two guide plates (22).

4. A printer provided with a printing paper cutting mechanism as defined in claim 2, wherein The bottom of the cover (2) is provided with a guide hole (23) that is vertically connected 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 part (62). The lower half of the paper pressing part (62) is located in the guide hole (23). The width of the guide hole (23) gradually decreases from top to bottom.

5. A printer equipped with a paper cutting mechanism as described in claim 1, characterized in that, 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). The top of the housing (1) has protrusions (12) corresponding to the two limiting members (71) and the top is inclined. When the cover is opened, the two limiting members (71) are pulled by the two tension springs (72) and the upper 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 guided upward by the two protrusions (12) and the upper end is moved away from the pressing member (61).

6. A printer equipped with a paper cutting mechanism as described in claim 1, characterized in that, The cover (2) and the shell (1) are respectively provided with a plurality of horizontally extending limiting grooves (24) at the ends away from the paper outlet (4), and a plurality of connecting rods (13) that pass through the plurality of limiting grooves (24) upward into the cover (2) and whose width is adapted to each of the limiting grooves (24). The cover (2) is respectively provided with a plurality of rotating grooves, and the upper ends of the plurality of connecting rods (13) are provided with rotating parts (131) that are rotatably sleeved in the plurality of rotating grooves.

7. A printer equipped with a paper cutting mechanism as described in claim 1, characterized in that, 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 housing (1) is provided with a printer core (9) corresponding to the printing channel (8) and used for printing.

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