A simple grounding mechanism for tearing paper blade

Abstract

The present invention belongs to the technical field of printers, and in particular relates to a simple paper-tearing blade grounding mechanism, comprising: a printer body, a limiting groove is provided in the printer body, a lower paper-tearing blade is plugged and installed in the limiting groove, a contact is fixedly installed in the limiting groove and on the lower paper-tearing blade, a metal block is fixedly installed in the limiting groove and on one side of the contact, two limiting plates 1 are plugged and installed in the limiting groove and on the top of the lower paper-tearing blade, and the same upper paper-tearing blade is slidably installed in the two limiting plates 1; two groups of fixed components, both of which are located in the printer body and are respectively used to fix the positions of the two limiting plates 1; the assembly problem of the previous grounding wire is solved, and the cover closing freeze will not occur due to static electricity accumulation, thereby improving assembly efficiency and reducing costs, and finally facilitating the staff to replace the upper paper-tearing blade and the lower paper-tearing blade, and no tools are needed, so the operation is convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of printers, and in particular relates to a simple grounding mechanism for a paper tearing blade. Background Art

[0002] A printer is one of the output devices of a computer, which is used to print the computer processing results on relevant media. Printers have been widely used in various industries, such as education, medical care, office, home, etc., and are an indispensable part of modern life and work.

[0003] Existing printers have some shortcomings when in use, such as: most existing printers use connecting wires for grounding and fixing, the assembly process is cumbersome, inefficient, and costly, and most hardware paper-tearing blades are not grounded. When static electricity accumulates to a certain amount, it is easy to cause a crash when closing the cover. At the same time, the paper-tearing blades of existing printers need to be replaced frequently when in use, and the paper-tearing blades need to be disassembled with tools when replacing them. The paper-tearing blades cannot be replaced without tools. In view of this, we propose a simple paper-tearing blade grounding mechanism. Summary of the invention

[0004] The object of the present invention is to provide a simple paper tearing blade grounding mechanism to solve the problems raised in the above background technology.

[0005] In view of this, the present invention provides a simple paper tearing blade grounding mechanism, comprising:

[0006] A printer body, wherein a limiting groove is provided in the printer body, a lower paper-tearing blade is inserted and installed in the limiting groove, a contact is fixedly installed in the limiting groove and on the lower paper-tearing blade, a metal block is fixedly installed in the limiting groove and on one side of the contact, two limiting plates 1 are inserted and installed in the limiting groove and on the top of the lower paper-tearing blade, and the same upper paper-tearing blade is slidably installed in the two limiting plates 1;

[0007] Two sets of fixing components, both of which are located in the printer body and are used to fix the positions of the two limit plates respectively;

[0008] Two power chambers, both of which are provided in the printer body, cylinders are fixedly installed on the tops of the two power chambers, rectangular plates are fixedly installed on the telescopic ends of the two cylinders, one side of the two rectangular plates respectively penetrates the two power chambers and extends to the outside, the two rectangular plates are slidably connected with the two power chambers, a sliding groove 2 is provided in the two rectangular plates, a sliding plate 1 is slidably installed in the two sliding grooves 2, one side of the two sliding plates 1 respectively penetrates the two rectangular plates and extends into the upper paper-tearing blade, and the two sliding plates 1 are plugged and matched with the upper paper-tearing blade;

[0009] The power assembly is located in the printer body and is used to drive the two sliding plates to slide.

[0010] In this technical solution, when the printer body is in use, the contact point is fixedly installed on the lower tearing blade, and the contact point contacts the metal block, using the metal conductive principle to solve the assembly problem of the previous grounding wire, and will not cause the cover to close and freeze due to static electricity accumulation, thereby improving assembly efficiency and reducing costs;

[0011] When the printing paper needs to be cut, the two cylinders are first started, and the telescopic ends of the two cylinders respectively drive the two rectangular plates to slide downward, and the two rectangular plates respectively drive the upper paper tearing blade to move downward through the two sliding plates, and the upper paper tearing blade will squeeze the printing paper to move downward, and then the printing paper will be in close contact with the lower paper tearing blade, and the printing paper will be cut under the squeezing action of the upper paper tearing blade and the lower paper tearing blade;

[0012] When the lower paper-tearing blade and the upper paper-tearing blade need to be disassembled, the two sliding plates 1 can be driven to slide in the direction of the rectangular plate through the power assembly, and at the same time, the two sliding plates 1 are separated from the upper paper-tearing blade;

[0013] By means of the set fixing assembly, the fixation of the two limit plates can be released, and the staff can take out the upper paper tearing blade and the lower paper tearing blade, and then fix the new lower paper tearing blade and the upper paper tearing blade through the above operation, finally making it convenient for the staff to replace the upper paper tearing blade and the lower paper tearing blade, and no tools are needed, which is easy to operate.

[0014] In the above technical solution, further, the fixing assembly includes:

[0015] Two limiting plates 2, both of which are slidably mounted in the limiting grooves and are respectively located on both sides of the limiting plate 1, the sides of the two limiting plates 2 that are close to each other extend into the limiting plate 1, and the two limiting plates 2 are plugged and matched with the limiting plate 1, and the sides of the two limiting plates 2 that are away from each other are fixedly mounted with a plurality of springs 1 fixed to the inner wall of the limiting groove;

[0016] The gear is rotatably installed in the limit groove and is located on one side of the limit plate. Racks are meshingly installed on both sides of the gear. The two racks are respectively fixedly connected to the two limit plates, and the two racks are slidably connected to the limit groove.

[0017] In the present technical scheme, the staff drives the two fixed plates to slide in the direction away from the limit plate one by several rubber protrusions, and the two fixed plates drive the two upper racks to slide in the direction away from the limit plate one, and the two racks drive the two gears to rotate forward, and the two gears drive the other two racks to slide in the direction away from the limit plate one, and the four racks drive the four limit plates two to slide, and at the same time, several springs one are squeezed and contracted, and when the four limit plates two are respectively detached from the two limit plates one, the staff can take out the upper paper tearing blade and the lower paper tearing blade, and then the new lower paper tearing blade and the upper paper tearing blade can be fixed through the above operation, which finally makes it convenient for the staff to replace the upper paper tearing blade and the lower paper tearing blade, and no tools are needed, and the operation is convenient.

[0018] In the above technical solution, further, the power assembly includes:

[0019] A sliding groove four, wherein the sliding groove four is provided in the printer body and is located above the upper paper tearing blade, wherein a sliding plate two is slidably installed in the sliding groove four, wherein two guide posts are fixedly installed at the bottom of the sliding plate two, wherein the lower ends of the two guide posts both penetrate the sliding groove four and extend into the two sliding plates one respectively, wherein the lower ends of the two guide posts are respectively plugged and matched with the two sliding plates one, and the two guide posts are both slidably connected to the sliding groove four;

[0020] Two sliding grooves 1, the two sliding grooves 1 are both opened in the sliding plate 2, and the two sliding grooves 1 are both slidably installed with limit columns, and the sides of the two limit columns close to each other are fixedly installed with springs 2 fixed to the inner wall of the corresponding sliding groove 1, and the tops of the two limit columns respectively penetrate the two sliding grooves 1 and extend to the outside, and two grooves are opened in the sliding groove 4 and on both sides of the sliding plate 2, and the sides of the two limit columns away from each other respectively penetrate the two sliding grooves and extend into two of the grooves, and the limit columns are plugged into the grooves.

[0021] In the present technical scheme, when it is necessary to disassemble the lower paper-tearing blade and the upper paper-tearing blade, first pull the two limit posts to slide and move closer to each other, and at the same time, the two springs 2 are squeezed and contracted. When the two limit posts are respectively disengaged from two of the grooves, then pull the sliding plate 2 to slide, and the sliding plate 2 drives the two guide posts to slide, and the two guide posts respectively drive the two sliding plates 1 to slide in the direction of the rectangular plate, and at the same time, the two sliding plates 1 are both disengaged from the upper paper-tearing blade. At this time, the two limit posts are released, and under the action of the rebound force of the two springs 2, the two limit posts slide and move away from each other, and then the sides of the two limit posts that are away from each other are respectively inserted into the other two grooves, so that the position of the sliding plate 2 can be fixed.

[0022] In the above technical solution, further, a fixing plate is fixedly installed on the top of the two upper racks, the tops of the two fixing plates pass through the limiting grooves and extend to the outside, and the two fixing plates are slidably connected to the limiting grooves, and a number of rubber protrusions are fixedly installed on the tops of the two fixing plates.

[0023] In the technical solution, a number of rubber protrusions are provided to facilitate the staff to drive the two fixed plates to slide respectively, and the two fixed plates drive the two racks located above to slide respectively.

[0024] In the above technical solution, further, a fixing column is fixedly installed at one end of the gear, a torsion spring is sleeved on the fixing column, two ends of the torsion spring are respectively fixed to the inner wall of the limiting groove and the gear, and the fixing column is rotatably connected to the limiting groove.

[0025] In this technical solution, the two gears respectively drive the two fixed columns to rotate in the forward direction, and at the same time the two torsion springs are twisted to ensure that the two gears can return to their original positions after rotation.

[0026] In the above technical solution, further, a sliding groove three is opened in the printer body and at the bottom of the limit groove, a sliding bar is slidably installed in the sliding groove three, and a plurality of springs three fixed to the inner wall of the sliding groove three are fixedly installed at the bottom of the sliding bar, and the top of the sliding bar is in close contact with the bottom of the lower paper tearing blade.

[0027] In this technical solution, under the action of the three rebound forces of several springs, the sliding bar slides upward and squeezes the lower paper tearing blade to slide upward, and the lower paper tearing blade squeezes the upper paper tearing blade to slide upward, and finally the staff can take out the upper paper tearing blade and the lower paper tearing blade, which is convenient for the staff to take out the upper paper tearing blade and the lower paper tearing blade.

[0028] In the above technical solution, further, the lower paper-tearing blade and the upper paper-tearing blade are arranged alternately.

[0029] In this technical solution, it is ensured that the lower tearing blade and the upper tearing blade can cut the printing paper.

[0030] In the above technical solution, further, the cross section of the limiting column is L-shaped, and the cross section of the sliding plate 1 is T-shaped.

[0031] In the technical solution, by ensuring that the sides of the two limit posts that are away from each other are respectively inserted into the other two grooves, the position of the sliding plate 2 can be fixed, thereby ensuring the sliding stability of the sliding plate 1.

[0032] In the above technical solution, further, the lower paper-tearing blade and the contact point are integrally formed.

[0033] In this technical solution, it is convenient to disassemble and install the lower paper-tearing blade and the contact point at the same time.

[0034] In the above technical solution, further, a plurality of the springs three are distributed at equal intervals.

[0035] The beneficial effects of the present invention are:

[0036] 1. This simple tearing blade grounding mechanism, when the printer body is in use, uses the contact point fixedly installed on the lower tearing blade, and the contact point contacts the metal block, using the metal conductive principle to solve the previous grounding wire assembly problem, and will not cause the cover to close and freeze due to static electricity accumulation, thereby improving assembly efficiency and reducing costs.

[0037] 2. The simple paper-tearing blade grounding mechanism can release the fixation of the two limit plates 1 through the set limit plate 2, spring 1, rack, gear, fixed column, torsion spring and fixed plate. The staff can take the upper paper-tearing blade and the lower paper-tearing blade, and then fix the new lower paper-tearing blade and the upper paper-tearing blade through the above operation, which finally makes it convenient for the staff to replace the upper paper-tearing blade and the lower paper-tearing blade without using tools, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is one of the schematic cross-sectional structures of the printer body of the present invention;

[0040] Figure 3 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0041] Figure 4 This is the second schematic diagram of the cross-sectional structure of the printer body of the present invention;

[0042] Figure 5 The present invention Figure 4 The enlarged structural diagram at A in the middle;

[0043] Figure 6 This is the third schematic diagram of the cross-sectional structure of the printer body of the present invention;

[0044] Figure 7 It is a schematic diagram of the structure of a region of a limiting plate of the present invention;

[0045] Figure 8 It is a schematic diagram of a cross-sectional structure of a limiting plate of the present invention;

[0046] Fig. 9 This is the fourth schematic diagram of the cross-sectional structure of the printer body of the present invention;

[0047] Fig.10 This is the fifth schematic diagram of the cross-sectional structure of the printer body of the present invention;

[0048] Fig.11 It is a schematic diagram of the second cross-sectional structure of the sliding plate of the present invention;

[0049] Fig.12 It is a schematic diagram of the cross-sectional structure of a rectangular plate of the present invention.

[0050] The symbols in the figure are:

[0051] 1. Printer body; 2. Limiting groove; 3. Lower tearing blade; 4. Contact; 5. Metal block; 6. Limiting plate 1; 7. Upper tearing blade; 8. Power chamber; 9. Cylinder; 10. Rectangular plate; 11. Sliding plate 1; 12. Limiting plate 2; 13. Spring 1; 14. Rack; 15. Gear; 16. Fixed column; 17. Torsion spring; 18. Fixed plate; 19. Rubber bump; 20. Groove; 21. Sliding plate 2; 22. Guide column; 23. Sliding groove 1; 24. Limiting column; 25. Spring 2; 26. Sliding groove 2; 27. Sliding groove 3; 28. Sliding bar; 29. ​​Spring 3; 30. Sliding groove 4. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0053] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0055] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0056] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0057] Embodiment 1:

[0058] See also Figure 1 - Fig.12 As shown, this embodiment provides a simple paper tearing blade grounding mechanism, including:

[0059] A printer body 1 is provided with a limit slot 2 in the printer body 1, a lower paper tearing blade 3 is inserted and installed in the limit slot 2, a contact 4 is fixedly installed in the limit slot 2 and on the lower paper tearing blade 3, a metal block 5 is fixedly installed in the limit slot 2 and on one side of the contact 4, two limit plates 6 are inserted and installed in the limit slot 2 and on the top of the lower paper tearing blade 3, and the same upper paper tearing blade 7 is slidably installed in the two limit plates 6;

[0060] Two sets of fixing components, both of which are located in the printer body 1 and are used to fix the positions of the two limit plates 6 respectively;

[0061] Two power chambers 8, both power chambers 8 are provided in the printer body 1, cylinders 9 are fixedly installed on the tops of the two power chambers 8, rectangular plates 10 are fixedly installed on the telescopic ends of the two cylinders 9, one side of the two rectangular plates 10 respectively penetrates the two power chambers 8 and extends to the outside, the two rectangular plates 10 are slidably connected with the two power chambers 8, a sliding groove 26 is provided in the two rectangular plates 10, a sliding plate 11 is slidably installed in the two sliding grooves 26, one side of the two sliding plates 11 respectively penetrates the two rectangular plates 10 and extends into the upper paper-tearing blade 7, and the two sliding plates 11 are plugged and matched with the upper paper-tearing blade 7;

[0062] The power assembly is located in the printer body 1 and is used to drive the two sliding plates 11 to slide.

[0063] When the printer body 1 is in use, the contact point 4 is fixedly mounted on the lower paper tearing blade 3, and the contact point 4 contacts the metal block 5, and the metal conductive principle is utilized to solve the assembly problem of the previous grounding wire, and the static electricity accumulation will not cause the cover to freeze, thereby improving the assembly efficiency and reducing the cost;

[0064] When it is necessary to cut the printing paper, first start the two cylinders 9, the telescopic ends of the two cylinders 9 respectively drive the two rectangular plates 10 to slide downward, and the two rectangular plates 10 respectively drive the upper paper tearing blade 7 to move downward through the two sliding plates 11, and the upper paper tearing blade 7 will squeeze the printing paper to move downward, and then the printing paper will be in close contact with the lower paper tearing blade 3, and the printing paper will be cut under the squeezing effect of the upper paper tearing blade 7 and the lower paper tearing blade 3;

[0065] When the lower paper-tearing blade 3 and the upper paper-tearing blade 7 need to be disassembled, the two sliding plates 11 can be driven to slide in the direction of the rectangular plate 10 by the power assembly, and at the same time, the two sliding plates 11 are separated from the upper paper-tearing blade 7;

[0066] By means of the provided fixing assembly, the fixation of the two limit plates 6 can be released, and the staff can take out the upper paper-tearing blade 7 and the lower paper-tearing blade 3, and then fix the new lower paper-tearing blade 3 and the upper paper-tearing blade 7 through the above operation, finally making it convenient for the staff to replace the upper paper-tearing blade 7 and the lower paper-tearing blade 3, and no tools are needed, which is convenient to operate.

[0067] In this embodiment, the fixing component includes:

[0068] Two limiting plates 12, both limiting plates 12 are slidably mounted in the limiting groove 2 and are respectively located on both sides of the limiting plate 6, the sides of the two limiting plates 12 close to each other are extended into the limiting plate 6, and the two limiting plates 12 are plugged and matched with the limiting plate 6, and the sides of the two limiting plates 12 away from each other are fixedly mounted with a plurality of springs 13 fixed to the inner wall of the limiting groove 2;

[0069] Gear 15, gear 15 is rotatably mounted in the limit groove 2 and is located on one side of the limit plate 1 6, racks 14 are meshedly mounted on both sides of the gear 15, two racks 14 are respectively fixedly connected to the two limit plates 12, and the two racks 14 are both slidably connected to the limit groove 2;

[0070] Among them, the staff drives the two fixed plates 18 to slide in the direction away from the limit plate 6 through several rubber protrusions 19, and the two fixed plates 18 drive the two upper racks 14 to slide in the direction away from the limit plate 6, and the two racks 14 drive the two gears 15 to rotate forwardly, and the two gears 15 drive the other two racks 14 to slide in the direction away from the limit plate 6, and the four racks 14 drive the four limit plates 2 12 to slide, and at the same time, several springs 13 are squeezed and contracted. When the four limit plates 2 12 are respectively separated from the two limit plates 6, the staff can take the upper paper tearing blade 7 and the lower paper tearing blade 3, and then the new lower paper tearing blade 3 and the upper paper tearing blade 7 can be fixed through the above operation, which is finally convenient for the staff to replace the upper paper tearing blade 7 and the lower paper tearing blade 3, and no tools are needed, which is easy to operate.

[0071] In this embodiment, the power assembly includes:

[0072] A sliding groove 430 is provided in the printer body 1 and is located above the upper paper tearing blade 7. A sliding plate 21 is slidably installed in the sliding groove 430. Two guide posts 22 are fixedly installed at the bottom of the sliding plate 21. The lower ends of the two guide posts 22 penetrate the sliding groove 430 and extend into the two sliding plates 11 respectively. The lower ends of the two guide posts 22 are respectively plugged and matched with the two sliding plates 11. The two guide posts 22 are slidably connected to the sliding groove 430.

[0073] Two sliding grooves 23, both sliding grooves 23 are arranged in the sliding plate 21, and the two sliding grooves 23 are slidably installed with limit posts 24, and the two limit posts 24 are fixedly installed with springs 25 fixed to the inner wall of the corresponding sliding grooves 23 on the sides close to each other, and the tops of the two limit posts 24 respectively penetrate the two sliding grooves 23 and extend to the outside, and two grooves 20 are arranged in the sliding groove 4 30 and on both sides of the sliding plate 21, and the two limit posts 24 are respectively penetrated by the two sliding grooves 23 on the sides away from each other and extend into two of the grooves 20, and the limit posts 24 are plugged into and matched with the grooves 20;

[0074] Among them, when it is necessary to disassemble the lower paper-tearing blade 3 and the upper paper-tearing blade 7, first pull the two limit posts 24 to slide and move closer to each other, and at the same time, the two springs 25 are squeezed and contracted. When the two limit posts 24 are respectively disengaged from two of the grooves 20, then pull the sliding plate 21 to slide, and the sliding plate 21 drives the two guide posts 22 to slide, and the two guide posts 22 respectively drive the two sliding plates 11 to slide in the direction of the rectangular plate 10, and at the same time, the two sliding plates 11 are both disengaged from the upper paper-tearing blade 7. At this time, the two limit posts 24 are released, and under the action of the rebound force of the two springs 25, the two limit posts 24 slide and move away from each other, and then the sides of the two limit posts 24 that are away from each other are respectively inserted into the other two grooves 20, so that the position of the sliding plate 21 can be fixed.

[0075] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0076] In this embodiment, a fixing plate 18 is fixedly installed on the top of the two upper racks 14, the tops of the two fixing plates 18 pass through the limiting groove 2 and extend to the outside, and the two fixing plates 18 are slidingly connected to the limiting groove 2, and a plurality of rubber protrusions 19 are fixedly installed on the top of the two fixing plates 18.

[0077] Among them, by providing a plurality of rubber protrusions 19, it is convenient for the staff to drive the two fixing plates 18 to slide respectively, and the two fixing plates 18 drive the two racks 14 located above to slide respectively.

[0078] Example

[0079] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] In this embodiment, a fixing column 16 is fixedly installed at one end of the gear 15, and a torsion spring 17 is sleeved on the fixing column 16. The two ends of the torsion spring 17 are respectively fixed to the inner wall of the limiting groove 2 and the gear 15, and the fixing column 16 is rotatably connected to the limiting groove 2.

[0081] The two gears 15 drive the two fixing columns 16 to rotate in the positive direction respectively, and the two torsion springs 17 are twisted at the same time, so as to ensure that the two gears 15 can return to their original positions after the rotation.

[0082] Example

[0083] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0084] In this embodiment, a sliding groove three 27 is opened in the printer body 1 and at the bottom of the limit groove 2, and a sliding bar 28 is slidably installed in the sliding groove three 27. A plurality of springs three 29 fixed to the inner wall of the sliding groove three 27 are fixedly installed at the bottom of the sliding bar 28, and the top of the sliding bar 28 is in close contact with the bottom of the lower paper tearing blade 3.

[0085] Among them, under the action of the rebound force of the plurality of springs 3 29, the sliding bar 28 slides upward and squeezes the lower paper tearing blade 3 to slide upward, and the lower paper tearing blade 3 squeezes the upper paper tearing blade 7 to slide upward, and finally the staff can take out the upper paper tearing blade 7 and the lower paper tearing blade 3, which is convenient for the staff to take out the upper paper tearing blade 7 and the lower paper tearing blade 3.

[0086] Example

[0087] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0088] In this embodiment, the lower paper-tearing blade 3 and the upper paper-tearing blade 7 are arranged alternately.

[0089] Herein, it is ensured that the lower paper tearing blade 3 and the upper paper tearing blade 7 can cut the printing paper.

[0090] Example

[0091] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0092] In this embodiment, the cross section of the limiting column 24 is L-shaped, and the cross section of the sliding plate 11 is T-shaped.

[0093] Among them, by ensuring that the sides of the two limiting columns 24 that are away from each other are respectively inserted into the other two grooves 20, the position of the sliding plate 21 can be fixed to ensure the sliding stability of the sliding plate 11.

[0094] Example

[0095] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0096] In this embodiment, the lower paper-tearing blade 3 and the contact point 4 are an integrally formed structure.

[0097] It is convenient to disassemble and install the lower paper-tearing blade 3 and the contact point 4 at the same time.

[0098] Example

[0099] This embodiment provides a simple paper tearing blade grounding mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0100] In this embodiment, the plurality of springs 29 are distributed at equal intervals.

[0101] Working principle: When the printer body 1 is in use, the contact point 4 fixedly installed on the lower paper tearing blade 3 contacts the metal block 5, and the metal conductive principle is used to solve the assembly problem of the previous grounding wire, and the static electricity accumulation will not cause the cover to freeze, thereby improving assembly efficiency and reducing costs;

[0102] When it is necessary to cut the printing paper, first start the two cylinders 9, the telescopic ends of the two cylinders 9 respectively drive the two rectangular plates 10 to slide downward, and the two rectangular plates 10 respectively drive the upper paper tearing blade 7 to move downward through the two sliding plates 11, and the upper paper tearing blade 7 will squeeze the printing paper to move downward, and then the printing paper will be in close contact with the lower paper tearing blade 3, and the printing paper will be cut under the squeezing effect of the upper paper tearing blade 7 and the lower paper tearing blade 3;

[0103] When the lower paper-tearing blade 3 and the upper paper-tearing blade 7 need to be disassembled, the two limit posts 24 are first pulled to slide and move closer to each other, and at the same time, the two springs 25 are squeezed and contracted. When the two limit posts 24 are respectively disengaged from the two grooves 20, the sliding plate 21 is then pulled to slide, and the sliding plate 21 drives the two guide posts 22 to slide, and the two guide posts 22 respectively drive the two sliding plates 11 to slide in the direction of the rectangular plate 10, and at the same time, the two sliding plates 11 are both disengaged from the upper paper-tearing blade 7. At this time, the two limit posts 24 are released, and under the action of the rebound force of the two springs 25, the two limit posts 24 slide and move away from each other, and then the sides of the two limit posts 24 that are away from each other are respectively inserted into the other two grooves 20, so that the position of the sliding plate 21 can be fixed;

[0104] The staff drives the two fixed plates 18 to slide away from the limit plate 16 through a number of rubber bumps 19, and the two fixed plates 18 drive the two upper racks 14 to slide away from the limit plate 16, and the two racks 14 drive the two gears 15 to rotate forward, and the two gears 15 drive the other two racks 14 to slide away from the limit plate 16, and the four racks 14 drive the four limit plates 2 12 to slide, and at the same time, the springs 13 are squeezed and contracted, and the two gears 15 drive the two fixed columns 16 to rotate forward, and at the same time, When the two torsion springs 17 are twisted, when the four limit plates 2 12 are respectively disengaged from the two limit plates 1 6, under the action of the rebound force of the plurality of springs 3 29, the sliding bar 28 slides upward and squeezes the lower paper-tearing blade 3 to slide upward, and the lower paper-tearing blade 3 squeezes the upper paper-tearing blade 7 to slide upward, and finally the staff takes the upper paper-tearing blade 7 and the lower paper-tearing blade 3, and then the new lower paper-tearing blade 3 and the upper paper-tearing blade 7 can be fixed through the above operation, which finally makes it convenient for the staff to replace the upper paper-tearing blade 7 and the lower paper-tearing blade 3, and no tools are needed, which is easy to operate.

[0105] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A simple paper tearing blade grounding mechanism, characterized in that: include: A printer body (1), wherein a limit slot (2) is provided in the printer body (1), a lower paper tearing blade (3) is inserted and installed in the limit slot (2), a contact (4) is fixedly installed in the limit slot (2) and located on the lower paper tearing blade (3), a metal block (5) is fixedly installed in the limit slot (2) and located on one side of the contact (4), two limit plates (6) are inserted and installed in the limit slot (2) and located on the top of the lower paper tearing blade (3), and the same upper paper tearing blade (7) is slidably installed in the two limit plates (6); Two sets of fixing components, both of which are located in the printer body (1) and are used to fix the positions of the two limit plates (6) respectively; Two power chambers (8), the two power chambers (8) are both opened in the printer body (1), the tops of the two power chambers (8) are fixedly mounted with cylinders (9), the telescopic ends of the two cylinders (9) are fixedly mounted with rectangular plates (10), one side of the two rectangular plates (10) respectively penetrates the two power chambers (8) and extends to the outside, the two rectangular plates (10) are respectively slidably connected with the two power chambers (8), the two rectangular plates (10) are each provided with a sliding groove (26), the two sliding grooves (26) are each slidably mounted with a sliding plate (11), one side of the two sliding plates (11) respectively penetrates the two rectangular plates (10) and extends into the upper paper tearing blade (7), and the two sliding plates (11) are plugged and matched with the upper paper tearing blade (7); A power assembly, the power assembly being located in the printer body (1) and being used to drive two sliding plates (11) to slide; The fixing assembly comprises: Two limiting plates (12), both limiting plates (12) are slidably mounted in the limiting groove (2) and are respectively located on both sides of the limiting plate (6), the sides of the two limiting plates (12) close to each other extend into the limiting plate (6), and the two limiting plates (12) are plugged into the limiting plate (6), and the sides of the two limiting plates (12) away from each other are fixedly mounted with a plurality of springs (13) fixed to the inner wall of the limiting groove (2); A gear (15), the gear (15) being rotatably mounted in the limiting groove (2) and being located on one side of the limiting plate 1 (6), racks (14) being meshingly mounted on both sides of the gear (15), the two racks (14) being respectively fixedly connected to the two limiting plates 2 (12), and the two racks (14) being slidably connected to the limiting groove (2); A sliding groove (27) is provided in the printer body (1) and at the bottom of the limiting groove (2). A sliding bar (28) is slidably mounted in the sliding groove (27). A plurality of springs (29) are fixedly mounted at the bottom of the sliding bar (28) and are fixed to the inner wall of the sliding groove (27). The top of the sliding bar (28) is in close contact with the bottom of the lower paper tearing blade (3).

2. A simple paper tearing blade grounding mechanism according to claim 1, characterized in that: The power assembly comprises: A sliding groove four (30), wherein the sliding groove four (30) is provided in the printer body (1) and is located above the upper paper tearing blade (7), wherein a sliding plate two (21) is slidably installed in the sliding groove four (30), wherein two guide pillars (22) are fixedly installed at the bottom of the sliding plate two (21), wherein the lower ends of the two guide pillars (22) both penetrate the sliding groove four (30) and extend into the two sliding plates one (11) respectively, wherein the lower ends of the two guide pillars (22) are respectively plugged into the two sliding plates one (11), and the two guide pillars (22) are both slidably connected to the sliding groove four (30); Two sliding grooves (23), the two sliding grooves (23) are both arranged in the sliding plate (21), and the two sliding grooves (23) are both slidably installed with limit posts (24), and the two limit posts (24) are fixedly installed with springs (25) fixed to the inner wall of the corresponding sliding grooves (23) on the sides close to each other, and the top ends of the two limit posts (24) respectively penetrate the two sliding grooves (23) and extend to the outside, and two grooves (20) are arranged in the sliding groove (30) and on both sides of the sliding plate (21), and the two limit posts (24) are respectively penetrated by the two sliding grooves (23) and extend into two of the grooves (20) on the sides away from each other, and the limit posts (24) are plug-fitted with the grooves (20).

3. A simple paper tearing blade grounding mechanism according to claim 2, characterized in that: A fixing plate (18) is fixedly mounted on the top of the two upper racks (14), the tops of the two fixing plates (18) pass through the limiting groove (2) and extend to the outside, and the two fixing plates (18) are slidably connected to the limiting groove (2), and a plurality of rubber protrusions (19) are fixedly mounted on the tops of the two fixing plates (18).

4. A simple paper tearing blade grounding mechanism according to claim 2, characterized in that: A fixing column (16) is fixedly mounted on one end of the gear (15), a torsion spring (17) is sleeved on the fixing column (16), two ends of the torsion spring (17) are respectively fixed to the inner wall of the limiting groove (2) and the gear (15), and the fixing column (16) is rotatably connected to the limiting groove (2).

5. A simple paper tearing blade grounding mechanism according to claim 1, characterized in that: The lower paper tearing blade (3) and the upper paper tearing blade (7) are arranged in a staggered manner.

6. A simple paper tearing blade grounding mechanism according to claim 3, characterized in that: The cross section of the limiting column (24) is L-shaped, and the cross section of the sliding plate 1 (11) is T-shaped.

7. A simple paper tearing blade grounding mechanism according to claim 1, characterized in that: The lower paper tearing blade (3) and the contact point (4) are an integrally formed structure.

8. A simple paper tearing blade grounding mechanism according to claim 1, characterized in that: A plurality of the springs three (29) are distributed at equal intervals.

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