Stamp printer

Abstract

The utility model discloses a stamp printer which comprises a shell, a power supply assembly, a motor, a circuit board, an ink box and a spray head, the spray head is arranged at the bottom of the stamp printer, the bottom of the stamp printer is further provided with a driving wheel and a plurality of driven wheels, the driving wheel is driven by the motor to rotate, and the driven wheels are driven by the motor to rotate. The rotating axes of the driving wheel and the driven wheels intersect at the rotating shaft of the stamp printer. According to the seal printer, the internal structure of the printer can be effectively reduced, so that the size of the printer is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of portable printers, in particular to a seal printer. Background Art

[0002] Since 2014, the applicant has been committed to the research in the field of dynamic anti-counterfeiting seal technology. Dynamic anti-counterfeiting seals need to be used in conjunction with portable seal printers. Therefore, the applicant has also been committed to the research in the field of portable seal printer technology. In 2019, the applicant submitted a new seal printer patent with application number "CN201910588837.5". This patent solves the problem of portable seal printing. The applicant's prior application cannot further compress the volume of the entire printer due to the limitations of the various structures of the printer, which has become a technical problem that needs to be urgently solved in the field of portable seal printer technology. Utility Model Content

[0003] The utility model provides a seal printer which can solve the problems existing in the prior art.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a stamp printer is provided, comprising a housing, a power supply assembly, a motor, a circuit board, an ink cartridge and a nozzle, wherein the nozzle is arranged at the bottom of the stamp printer, and a driving wheel and a driven wheel are also arranged at the bottom of the stamp printer, wherein the driving wheel is driven to rotate by the motor, and a plurality of driven wheels are arranged, and the rotation axes of the driving wheel and the plurality of driven wheels intersect with the rotation axis of the stamp printer.

[0005] Preferably, the power supply component is a battery or an external power supply component.

[0006] Preferably, the stamp printer further comprises a first bracket, the first bracket is arranged in the housing, the driven wheel is arranged on the first bracket or the housing, a second bracket is arranged in the first bracket, and the ink cartridge is arranged on the second bracket.

[0007] Preferably, the motor is arranged on the outside of the second bracket, and the motor is directly or indirectly connected to the driving wheel.

[0008] Preferably, it further comprises a driving wheel buffer assembly, wherein the buffer assembly is used to buffer the movement of the driving wheel in the vertical direction.

[0009] Preferably, the buffer assembly includes a third bracket, an elastic device, a bracket body, a first limit block and a second limit block, the third bracket, the first limit block and the second limit block are all arranged on the bracket body, one end of the elastic device is connected to the first limit block, and the other end of the elastic device is connected to the first bracket, the second limit block is used for limiting the buffer assembly, the first bracket is provided with a limit groove matching the second limit block, and the driving wheel is arranged on the third bracket.

[0010] Preferably, the stamp printer is provided with an angle sensor for detecting the rotation angle of the driving wheel, the angle sensor is a Hall angle sensor, and the angle sensor and the driving wheel are both arranged on the third bracket corresponding to the position of the driving wheel.

[0011] Preferably, the nozzle is arranged at the bottom of the ink cartridge or the nozzle is connected to the ink cartridge through an ink supply line.

[0012] The beneficial effects of the utility model are as follows: by arranging a driving wheel and a plurality of driven wheels at the bottom of the stamp printer, and the rotation axes of the driving wheel and the plurality of driven wheels are compared with the rotation axis of the stamp printer, the internal parts of the printer can be effectively reduced. For example, the connection structure between the motor and the rotating assembly is reduced, a smaller motor can be selected, and the volume of the battery can be appropriately increased, thereby increasing the use time of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 A schematic three-dimensional diagram of a stamp printer according to an embodiment of the present invention;

[0015] Figure 2 A longitudinal cross-sectional schematic diagram of a stamp printer of an embodiment;

[0016] Figure 3 A schematic three-dimensional diagram of a first bracket of a stamp printer according to an embodiment;

[0017] Figure 4 A schematic diagram of the positional relationship between a driving wheel and a plurality of driven wheels in an embodiment;

[0018] Figure 5 A schematic diagram of the connection between the buffer assembly and the motor of the embodiment;

[0019] Figure 6 is a schematic diagram of the connection between the buffer assembly and the motor of the embodiment in another direction;

[0020] Figure 7 A schematic diagram of the connection between the motor and the driving wheel of an embodiment;

[0021] Figure 8 A schematic diagram of an example of connection between a motor and a driving wheel in an embodiment;

[0022] Fig. 9 A schematic diagram of an example of connection between a motor and a driving wheel in an embodiment.

[0023] Explanation of the reference numerals: 100, stamp printer; 110, circuit board; 120, battery; 130, first bracket; 131, mounting slot; 132, limit slot; 140, motor; 141, belt; 142, connecting rod; 150, second bracket; 160, ink cartridge; 170, housing; 180, bracket body; 181, elastic device; 182, first limit block; 183, second limit block; 184, Hall angle sensor; 185, third bracket; 200, driven wheel; 300, driving wheel; 400, nozzle; 500, moving track of driven wheel; 501, rotating shaft of stamp printer; 502, rotating axis of driven wheel; 503, rotating axis of driving wheel. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more than two. The dotted lines in the drawings are not real structures or lines, but are only used to more clearly illustrate the embodiments of the present application.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment provides a stamp printer, including a housing 170, a power supply assembly, a motor 140, a circuit board 110, an ink cartridge 160 and a nozzle 400, as shown in FIG. Figure 1 , Figure 2 As shown, the nozzle 400 is arranged at the bottom of the stamp printer 100. A driving wheel 300 and 11 driven wheels 200 are also arranged at the bottom of the stamp printer 100. The driving wheel 300 is driven by the motor 140 to rotate. Figure 4 As shown, the rotation axis 503 of the driving wheel 300 and the rotation axes 502 of the 11 driven wheels 200 intersect with the rotation axis 501 of the stamp printer 100. Figure 4 The dotted lines in the figure are auxiliary lines. Figure 4 The nozzle 400 in the figure is a schematic position of the nozzle holes of the stamp printer 100. Those skilled in the art will know that the nozzle holes of the nozzle are generally arranged in a straight line on a macro scale. In this embodiment, the straight line where the nozzle holes are located intersects with the rotation axis 501 of the stamp printer 100. The intersection mentioned in this embodiment is not an absolute intersection, but is as close to the intersection as possible, because it is impossible to achieve 100% precise processing during the processing of parts. Therefore, it is actually only possible to make all the rotation axes intersect with the rotation axis 501 of the stamp printer 100.

[0027] In some preferred embodiments, Figure 2 As shown, the power supply component in this embodiment is a battery 120, and the seal printer 100 is powered by the battery 120. In other embodiments, the power supply component can also be used in conjunction with an external power supply component and a power cord to power the seal printer 100.

[0028] In some preferred embodiments, Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the stamp printer 100 also includes a first bracket 130, and the first bracket 130 is arranged in a shell 170, and the shell 170 is sleeved on the outside of the first bracket 130. In this embodiment, 11 driven wheels 200 are arranged on the first bracket 130, and a mounting groove for mounting the 11 driven wheels 200 is provided on the first bracket 130. In other embodiments, the mounting groove of the driven wheel 200 can also be provided on the shell, which is well known in the art and will not be described here. A second bracket 150 is also provided in the first bracket 130, and the ink cartridge 160 is clamped to the second bracket 150 by a buckle and a bayonet.

[0029] In some preferred embodiments, the motor 140 is disposed outside the second bracket 150, where the outside is relative to the ink cartridge 160. Figure 2 As shown, the ink cartridge 160 is disposed at Figure 2 The motor 140 is arranged on the upper side of the second bracket 150, that is, the lower side of the second bracket 140 is the inner side of the second bracket 150, and the motor 140 is arranged on the outer side of the second bracket 150, that is, the second bracket 150 is on the Figure 2 The upper side of Figure 5 , Figure 6 , Figure 7 As shown, in this embodiment, the motor 140 is indirectly connected to the driving wheel 300 through the belt 141, and the power of the output shaft of the motor 140 is indirectly transmitted to the driving wheel 300 through the belt 141. Figure 8 and Fig. 9As shown, in other embodiments, the motor 140 and the driving wheel 300 may also be connected via a power output shaft of the motor 140, or indirectly connected via other connection forms such as a connecting rod 142, which cannot be exhaustively listed and will not be described in detail here.

[0030] In this embodiment, if Figure 1 and Figure 2 As shown, the nozzle 400 is directly disposed on the ink cartridge 160, at the bottom of the ink cartridge 160. In some preferred embodiments, the nozzle can also be connected to the ink cartridge through an ink supply line, thereby increasing the service life of the stamp printer.

[0031] In some preferred embodiments, Figure 5 , Figure 6 As shown, the stamp printer 100 also includes a buffer component of the driving wheel 300, and the buffer component is used to buffer the movement of the driving wheel 300 in the vertical direction. The vertical direction described in this embodiment is relative, which means that the stamp printer 100 is placed in the horizontal direction, and the vertical direction is perpendicular to the horizontal direction. In the process of stamp printing, it is occasionally encountered that the plane where the printing medium is located is not flat, which may cause the driving wheel 300 of the stamp printer 100 to be unable to contact the printing plane. In order to achieve rotational printing, the stamp printer 100 must make the driving wheel 300 contact the printing plane. Therefore, a buffer component of the driving wheel 300 is set. By setting the buffer component, the driving wheel 300 can contact the printing plane even if the printing plane is uneven, thereby enabling the stamp printer 100 to achieve rotational printing. It should be noted that the uneven printing plane described in this embodiment is a small unevenness. For example, when stamping a document with a large number of interline seals, there is a certain height difference between the first page and the last page of the stamped document, which leads to an uneven printing plane.

[0032] In some preferred embodiments, Figure 5 and Figure 6 As shown, the buffer assembly includes a third bracket 185, an elastic device 181, a bracket body 180, a first limit block 182 and a second limit block 183. The third bracket 185, the first limit block 182 and the second limit block 183 are all arranged on the bracket body 180. In this embodiment, the first limit block 182 and the second limit block 183 are each provided with two groups, which are respectively arranged on both sides of the bracket body 180. The elastic device 181 is a spring, one end of the spring abuts against the first bracket 130, and the other end of the spring abuts against the first limit block 182. The second limit block 183 is used for limiting the buffer assembly. The first bracket 130 is provided with a limit groove 132 matching the second limit block 183, and the driving wheel 300 is arranged on the third bracket 185.

[0033] like Figure 5 and Figure 6As shown, in this embodiment, the stamp printer 100 is provided with an angle sensor for detecting the rotation angle of the driving wheel. In this embodiment, the angle sensor is a Hall angle sensor 184 , which is arranged on the third bracket 185 corresponding to the position of the driving wheel 300 .

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stamp printer, comprising a housing, a power supply assembly, a motor, a circuit board, an ink cartridge and a nozzle, characterized in that: A driving wheel and a driven wheel are also provided at the bottom of the stamp printer. The driving wheel is driven by the motor to rotate. There are multiple driven wheels. The rotation axes of the driving wheel and the multiple driven wheels intersect with the rotation axis of the stamp printer.

2. A stamp printer as claimed in claim 1, characterized in that: The power supply component is a battery or an external power supply component.

3. A stamp printer as claimed in claim 1, characterized in that: The stamp printer further comprises a first bracket, the first bracket is arranged in the shell, the driven wheel is arranged on the first bracket or the shell, a second bracket is arranged in the first bracket, and the ink cartridge is arranged on the second bracket.

4. A stamp printer as claimed in claim 3, characterized in that: The motor is arranged on the outer side of the second bracket, and the motor is directly or indirectly connected to the driving wheel.

5. A stamp printer as claimed in claim 3, characterized in that: It also includes a driving wheel buffer assembly, and the buffer assembly is used to buffer the movement of the driving wheel in the vertical direction.

6. A stamp printer as claimed in claim 5, characterized in that: The buffer assembly includes a third bracket, an elastic device, a bracket body, a first limit block and a second limit block, the third bracket, the first limit block and the second limit block are all arranged on the bracket body, one end of the elastic device is connected to the first limit block, and the other end of the elastic device is connected to the first bracket, the second limit block is used for limiting the buffer assembly, the first bracket is provided with a limit groove matching the second limit block, and the driving wheel is arranged on the third bracket.

7. A stamp printer as claimed in claim 6, characterized in that: The stamp printer is provided with an angle sensor for detecting the rotation angle of the driving wheel. The angle sensor and the driving wheel are both arranged on the third bracket corresponding to the position of the driving wheel.

8. A stamp printer as claimed in claim 1, characterized in that: The nozzle is arranged at the bottom of the ink cartridge or is connected to the ink cartridge through an ink supply line.

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