CN212636942U - Paper clamping assembly, paper clamping mechanism and thermal printer - Google Patents
Paper clamping assembly, paper clamping mechanism and thermal printer Download PDFInfo
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- CN212636942U CN212636942U CN202021974489.XU CN202021974489U CN212636942U CN 212636942 U CN212636942 U CN 212636942U CN 202021974489 U CN202021974489 U CN 202021974489U CN 212636942 U CN212636942 U CN 212636942U
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Abstract
The embodiment of the utility model provides a press from both sides paper subassembly, press from both sides paper mechanism and thermal printer, press from both sides the paper subassembly and include: the paper clamping device comprises a limiting convex shaft, a stroke shaft, a paper clamping convex shaft and an elastic element; spacing protruding axle includes: the limiting plate is connected with the limiting protrusion, and the limiting protrusion is formed by protruding the surface part of the limiting plate; the stroke shaft is connected with the limiting bulge, the stroke shaft horizontally extends towards the direction far away from the limiting bulge, and a flange part is formed at one end of the stroke shaft far away from the limiting bulge; the paper clamping convex shaft is sleeved on the stroke shaft and can slide between the flange part and the limiting bulge along the axial direction of the stroke shaft; the elastic element is sleeved on the stroke shaft and is positioned between the paper clamping convex shaft and the limiting bulge, one end of the elastic element is abutted against the paper clamping convex shaft, and the other end of the elastic element is abutted against the limiting bulge. Compare with prior art, can satisfy the fixed demand of the paper tray of different breadth width in printer housing for the thermal printer of this embodiment can satisfy the printing demand of multiple different printing scenes.
Description
Technical Field
The embodiment of the utility model relates to a printing device, in particular to press from both sides paper subassembly, press from both sides paper mechanism and printer.
Background
A thermal printer, as a printer that performs printing by a thermal method, is mostly applied to places such as a mall, a bank, and a supermarket. At present, the width of thermal printing is limited to less than 10cm due to the single use place of the thermal printer, and the thermal printer is mainly used for printing tickets or serial numbers, so that the thermal printers in the format of a4 in China are very few, but the thermal printer in the format of a4 is very frequently used on ships, and particularly, a meteorological cloud chart is printed, generally in the format of a4, has black and white color, and is very suitable for the use scene of thermal printing. Therefore, how to make a thermal printer capable of meeting the printing requirements of various formats is a problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a press from both sides paper subassembly, press from both sides paper mechanism and printer can satisfy the printing demand of different breadth temperature-sensitive paper simultaneously to make temperature-sensitive printer can satisfy the printing scene of multiple difference simultaneously.
In order to solve the above technical problem, an embodiment of the utility model provides a press from both sides paper subassembly, include:
spacing protruding axle includes: the limiting plate comprises a limiting plate and a limiting bulge connected with the limiting plate, wherein the limiting bulge is formed by partially bulging the surface of the limiting plate;
the stroke shaft is connected with the limiting bulge and horizontally extends towards the direction far away from the limiting bulge; one end of the stroke shaft, which is far away from the limiting bulge, is provided with a flange part; the stroke shaft is used for being inserted into the paper tray;
the paper clamping convex shaft is sleeved on the stroke shaft and can slide between the flange part and the limiting bulge along the axial direction of the stroke shaft;
the elastic element is sleeved on the stroke shaft and is positioned between the paper clamping convex shaft and the limiting bulge; one end of the elastic element is abutted to the paper clamping convex shaft, and the other end of the elastic element is abutted to the limiting bulge.
Additionally, the embodiment of the utility model provides a still provide a paper clamping mechanism, include: a positioning assembly, a paper clamping assembly as described above;
the positioning assembly comprises:
the paper disc backing plate is arranged opposite to the paper clamping assembly; the paper disc base plate and the limiting plate are arranged in parallel;
the positioning convex shaft is arranged on one side of the paper disc base plate relative to the paper clamping assembly;
the paper clamping convex shaft and the positioning convex shaft are coaxially arranged along the axial direction of the stroke shaft and are used for clamping the paper tray.
In addition, the utility model discloses an embodiment still provides a thermal printer, includes:
a housing, comprising: the device comprises a bottom plate, a front panel, a rear panel, a first side plate and a second side plate, wherein the front panel, the rear panel, the first side plate and the second side plate are arranged on the bottom plate; the front panel and the rear panel are opposite to each other along the length direction of the bottom plate and are arranged in parallel; the first side plate and the second side plate are opposite in the width direction of the bottom plate and are arranged in parallel;
a first fixing plate and a second fixing plate; the first fixing plate is arranged on one side of the first side plate opposite to the second side plate, and the second fixing plate is arranged on one side of the second side plate opposite to the first side plate;
the paper clamping mechanism as described above; the limiting plate of the paper clamping assembly is arranged on one side, opposite to the second fixing plate, of the first fixing plate, and the paper disc base plate of the positioning assembly is arranged on one side, opposite to the first fixing plate, of the second fixing plate.
The utility model discloses an embodiment is for prior art, utilize the protruding axle of clamp paper at the epaxial slip characteristic of stroke, make the protruding axle of clamp paper can be according to the breadth width of the fixed paper disc of required centre gripping, the adjustment presss from both sides the position of the protruding axle of paper at the epaxial position of stroke, and simultaneously, with the help of elastic element's resilience characteristic, make the protruding axle of clamp paper press from both sides tightly and fixed paper disc under elastic element's resilience effect all the time, thereby satisfy the fixed demand of the paper disc of different breadth widths in the printer casing, make the thermal printer of this embodiment can satisfy the printing demand that multiple difference printed the scene.
In addition, one side of the paper clamping convex shaft, which is far away from the limiting bulge, is a clamping side for clamping the paper disc, and one side of the paper clamping convex shaft, which is opposite to the limiting bulge, is a supporting side abutted against the elastic element;
a plurality of first bosses which are coaxially arranged are formed on the clamping side along the radial direction of the paper clamping convex shaft; wherein the diameters of the first bosses are sequentially increased from the clamping side to the supporting side.
In addition, each of the first bosses includes: a clamping surface opposite to the supporting side, a first ring surface extending from the clamping surface towards the supporting side.
In addition, the first annular surface of each first boss is formed by gradually expanding and extending from the clamping surface of the first boss towards the direction of the supporting side.
In addition, a T-shaped groove is formed in one side, opposite to the paper clamping convex shaft, of the limiting bulge;
the T-shaped groove includes: the first groove body and the second groove body are coaxial and communicated with each other, the inner diameter of the first groove body is smaller than that of the second groove body, the first groove body is inserted into one end part of the stroke shaft, and the second groove body is partially embedded into the elastic element.
In addition, one side of the positioning convex shaft, which is far away from the paper tray backing plate, is a positioning side for positioning the paper tray, and one side of the positioning convex shaft, which is opposite to the paper tray backing plate, is a bearing side;
a plurality of second bosses which are coaxially arranged are formed on the positioning side along the radial direction of the positioning convex shaft; wherein the diameters of the second bosses are sequentially increased from the positioning side to the bearing side.
In addition, each of the second bosses includes: the second ring surface extends from the positioning surface to the bearing side direction.
In addition, the second ring surface of each of the second bosses is formed by gradually expanding and extending from the positioning surface of the second boss toward the bearing side.
Drawings
Fig. 1 is a schematic structural view of a paper clamping assembly according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural view of a paper clamping mechanism according to a second embodiment of the present invention;
fig. 4 is an internal axial view of a thermal printer according to a third embodiment of the present invention;
fig. 5 is an internal axial view of a thermal printer according to a third embodiment of the present invention;
fig. 6 is an assembly view of a thermal printer according to a third embodiment of the present invention;
fig. 7 is a schematic axial view of a thermal printer according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a paper clamping assembly, as shown in fig. 1 and 2, comprising: the paper-clamping device comprises a limiting convex shaft 1, a stroke shaft 2, a paper-clamping convex shaft 3 and an elastic element 4.
Wherein, as shown in fig. 1, the limit protruding shaft 1 comprises: the limiting plate 11 and the limiting bulge 12 are connected with the limiting plate 11, and the limiting bulge 12 is formed by partially protruding the surface of the limiting plate 11.
Next, as shown in fig. 1, the stroke shaft 2 is connected to the limit projection 12, and the stroke shaft 2 extends horizontally in a direction away from the limit projection 12, and at the same time, a flange portion 21 is formed at an end of the stroke shaft 2 away from the limit projection 12, and the stroke shaft 2 is used for insertion into a paper tray (not shown).
As shown in fig. 1, the paper insertion boss shaft 3 is fitted around the stroke shaft 2, and the paper insertion boss shaft 3 is slidable between the flange portion 21 and the stopper boss 12 in the axial direction of the stroke shaft 2.
Finally, as shown in fig. 1, the elastic element 4 is sleeved on the stroke shaft 2, and the elastic element 4 is located between the paper clamping convex shaft 3 and the limiting protrusion 12, one end of the elastic element 4 is abutted against the paper clamping convex shaft 3, and the other end is abutted against the limiting protrusion 12.
It can be seen from the above that, by using the sliding characteristic of the paper clamping protruding shaft 3 on the stroke shaft 2, the paper clamping protruding shaft 3 can clamp the width of the fixed paper tray according to the requirement, and the position of the paper clamping protruding shaft 3 on the stroke shaft 2 is adjusted, and meanwhile, by means of the resilience characteristic of the elastic element 4, the paper clamping protruding shaft 3 can clamp and fix the paper tray under the resilience effect of the elastic element 4 all the time, so that the fixing requirements of the paper trays with different width in the printer shell are met, and the thermal printer of the embodiment can meet the printing requirements of various different printing scenes.
Specifically, in practical use, as shown in fig. 3, the paper clamping assembly of the present embodiment and the positioning assembly of the thermal printer are disposed opposite to each other in the housing of the printer, when the paper tray needs to be clamped and fixed, the resilience of the elastic element 4 can be utilized first, and the operator pushes the paper clamping protruding shaft 3 toward the direction of the limiting protruding shaft 1, so that the elastic element 4 can be gradually compressed under the action of the paper clamping protruding shaft 3, and the stroke shaft 2 can be gradually exposed from the side of the paper clamping protruding shaft 3 away from the limiting protruding shaft 1, when the paper clamping protruding shaft 3 cooperates with the limiting protruding shaft 1 to compress the elastic element 4 to a proper position, the paper tray can be directly sleeved on the stroke shaft 2, so that the paper tray can be located between the paper clamping protruding shaft 3 and the positioning protruding shaft (not shown in the figure) of the positioning assembly, and then the acting force on the paper clamping protruding shaft 3 is released, so that the paper clamping convex shaft 3 can be matched with the positioning convex shaft to clamp and fix the paper disc under the resilience action of the elastic element 4. Therefore, the elastic element 4 can make the paper clamping protruding shaft 3 of the embodiment meet the clamping and positioning requirements of thermal paper with various widths.
In addition, it should be noted that in the present embodiment, in order to facilitate the assembly between the stop protruding shaft 1, the stroke shaft 2 and the elastic element 4, as shown in fig. 1, a T-shaped groove 121 formed by a first groove 1211 and a second groove 1212 is further formed on one side of the stop protrusion 12 opposite to the paper-holding protruding shaft 3. The first and second slots 1211 and 1212 are coaxially connected to each other, and the inner diameter of the first slot 1211 is smaller than that of the second slot 1212, so that when the assembly is performed, one end of the stroke shaft 2 can be inserted into the first slot 1211, and one side of the elastic element 4 can be partially inserted into the second slot 1212. Also, in the present embodiment, the elastic element 24 is a spring. It follows that the elastic element 4 and the stroke shaft 2 can be fixedly mounted at the same time by means of the T-shaped groove 121.
In addition, in order to clamp and fix the paper tray by the paper clamping protruding shaft 3 and the positioning protruding shaft, as shown in fig. 2, the side of the paper clamping protruding shaft 3 away from the limiting protrusion 12 is a clamping side 31 for clamping the paper tray, and correspondingly, the side of the paper clamping protruding shaft 3 opposite to the limiting protrusion 12 is a supporting side 32 for abutting against the elastic element 4. The clamping side 31 forms a plurality of first bosses 311 coaxially arranged along the radial direction of the paper clamping protruding shaft 3, and the diameters of the first bosses 311 are sequentially increased from the clamping side 31 to the supporting side 32.
In the present embodiment, as shown in fig. 2, each of the first bosses 311 includes: a clamping surface 3111 opposite the support side 32, a first annulus 3112 extending from the clamping surface 3111 in a direction towards the support side 32. Therefore, it can be seen that the positioning requirements of different paper trays in clamping can be met by the plurality of first bosses 311 with different diameters. Preferably, the first ring surface 3112 of each first boss 311 is formed to gradually expand and extend from the clamping surface 3111 of the first boss 311 toward the support side 32. The first ring surface 3112 of each first boss 311 is an inclined ring surface, so that when the paper tray is installed, the inclined design of the first ring surface 3112 can guide the paper tray when the paper tray is clamped, and the paper tray can be directly guided to the corresponding first boss 311 to be fixed.
A second embodiment of the present invention relates to a paper clamping mechanism, as shown in fig. 3, including: a positioning assembly, such as a paper clamping assembly as described in the first embodiment. As shown in fig. 3, the positioning unit includes: a paper tray backing plate 20 and a positioning protruding shaft 5.
In the present embodiment, as shown in fig. 3, the tray backing plate 20 is disposed opposite to the paper clamping assembly, the tray backing plate 20 is disposed parallel to the limiting plate 11 of the paper clamping assembly, and the positioning protruding shaft 5 is disposed on one side of the tray backing plate 20 opposite to the paper clamping assembly. Also, the paper clamping protruding shaft 3 and the positioning protruding shaft 5 are coaxially provided in the axial direction of the stroke shaft 2, so that the paper clamping protruding shaft 3 and the positioning protruding shaft 5 can be used to clamp the paper tray 100 together.
Specifically, in the present embodiment, as shown in fig. 3, the side of the positioning protruding shaft 5 away from the tray backing plate 20 is the positioning side 51 for holding the tray 100, and the side of the positioning protruding shaft 5 opposite to the tray backing plate 20 is the receiving side 52. In order to fit each first boss 311 of the paper insertion boss shaft 3, the positioning side 51 is formed with a plurality of second bosses 511 coaxially provided along the radial direction of the positioning boss shaft 5, and the number of the second bosses 511 is the same as that of the first bosses 311 and corresponds uniquely, and the diameters of the second bosses 511 are gradually increased from the positioning side 51 toward the bearing side 52.
Also, as shown in fig. 3, each of the second bosses 511 includes: a positioning surface 5111 opposite to the bearing side 52, and a second ring surface 5112 extending from the positioning surface 5111 toward the bearing side 52. Therefore, it is easy to see that, by means of the cooperation between the second bosses 511 and the first bosses 311, the clamping and positioning performance of the paper tray 100 can be improved, so that the paper tray 100 can be clamped more stably and is not easy to shake.
In addition, as shown in fig. 3, the second ring face 5112 of each second boss 511 is formed by gradually expanding and extending from the positioning face 5111 of the second boss 511 toward the bearing side 52 in accordance with the inclined design of each first ring face 311 of each first boss 311. It is thus understood that the guiding performance of the paper tray 100 can be further improved by the cooperation of the first ring surface 3112 and the second ring surface 5112, so that the paper tray 100 can be directly introduced between the corresponding first boss 311 and second boss 511, and the clamping positioning of the paper tray 100 is completed.
A third embodiment of the present invention relates to a thermal printer, as shown in fig. 4 to 7, including: a housing 6, a first fixing plate 7, a second fixing plate 8, a paper feeding mechanism 9, a printer core 10, and a paper clamping mechanism as described in the second embodiment.
As shown in fig. 6 and 7, the housing 6 includes: the base plate 61, a front panel 62 disposed on the base plate 61, a rear panel 63, a first side plate 64, and a second side plate 65. The front panel 62 and the rear panel 63 are disposed in parallel and opposite to each other on the bottom plate 14 along the length direction of the bottom plate 6114, and the first side plate 64 and the second side plate 65 are disposed in parallel and opposite to each other along the width direction of the bottom plate 61.
In addition, as shown in fig. 4 and 5, the first fixing plate 7 is provided on a side of the first side plate 64 opposite to the second side plate 65, and the second fixing plate 8 is provided on a side of the second side plate 65 opposite to the first side plate 64.
Further, as shown in fig. 4, the position limiting plate 11 of the paper clamping assembly is disposed on the side of the first fixing plate 7 opposite to the second fixing plate 8, and the paper tray backing plate 20 of the positioning assembly is disposed on the side of the second fixing plate 8 opposite to the first fixing plate 7.
It can be seen from the above that, by using the sliding characteristic of the paper clamping protruding shaft 3 on the stroke shaft 2, the paper clamping protruding shaft 3 can clamp the width of the fixed paper tray according to the requirement, and the position of the paper clamping protruding shaft 3 on the stroke shaft 2 is adjusted, and meanwhile, by means of the resilience characteristic of the elastic element 4, the paper clamping protruding shaft 3 can be always matched with the positioning protruding shaft 5 under the resilience effect of the elastic element 4 to clamp and fix the paper tray, so that the fixing requirements of the paper trays 100 with different widths in the printer housing 6 are met, and the thermal printer of the embodiment can meet the printing requirements of various different printing scenes.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (10)
1. A paper clamping assembly, comprising:
spacing protruding axle includes: the limiting plate comprises a limiting plate and a limiting bulge connected with the limiting plate, wherein the limiting bulge is formed by partially bulging the surface of the limiting plate;
the stroke shaft is connected with the limiting bulge and horizontally extends towards the direction far away from the limiting bulge; one end of the stroke shaft, which is far away from the limiting bulge, is provided with a flange part; the stroke shaft is used for being inserted into the paper tray;
the paper clamping convex shaft is sleeved on the stroke shaft and can slide between the flange part and the limiting bulge along the axial direction of the stroke shaft;
the elastic element is sleeved on the stroke shaft and is positioned between the paper clamping convex shaft and the limiting bulge; one end of the elastic element is abutted to the paper clamping convex shaft, and the other end of the elastic element is abutted to the limiting bulge.
2. The paper clamping assembly as claimed in claim 1, wherein a side of the paper clamping protruding shaft away from the limiting protrusion is a clamping side for clamping the paper tray, and a side of the paper clamping protruding shaft opposite to the limiting protrusion is a supporting side for abutting against the elastic element;
a plurality of first bosses which are coaxially arranged are formed on the clamping side along the radial direction of the paper clamping convex shaft; wherein the diameters of the first bosses are sequentially increased from the clamping side to the supporting side.
3. A paper clip assembly as defined in claim 2, wherein each of the first bosses comprises: a clamping surface opposite to the supporting side, a first ring surface extending from the clamping surface towards the supporting side.
4. A paper clamping assembly according to claim 3 wherein said first annular surface of each said first boss is formed to extend progressively from said clamping surface of said first boss in a direction towards said support side.
5. The paper clamping assembly according to any one of claims 1 to 4, wherein a T-shaped groove is formed in one side of the limiting protrusion relative to the paper clamping convex shaft;
the T-shaped groove includes: the first groove body and the second groove body are coaxial and communicated with each other, the inner diameter of the first groove body is smaller than that of the second groove body, the first groove body is inserted into one end part of the stroke shaft, and the second groove body is partially embedded into the elastic element.
6. A paper clamping mechanism, comprising: a positioning assembly, the paper clamping assembly of any one of claims 1-5;
the positioning assembly comprises:
the paper disc backing plate is arranged opposite to the paper clamping assembly; the paper disc base plate and the limiting plate are arranged in parallel;
the positioning convex shaft is arranged on one side of the paper disc base plate relative to the paper clamping assembly;
the paper clamping convex shaft and the positioning convex shaft are coaxially arranged along the axial direction of the stroke shaft and are used for clamping the paper tray.
7. The paper clamping mechanism of claim 6, wherein a side of said positioning protruding shaft away from said paper tray backing plate is a positioning side for positioning said paper tray, and a side of said positioning protruding shaft opposite to said paper tray backing plate is a bearing side;
a plurality of second bosses which are coaxially arranged are formed on the positioning side along the radial direction of the positioning convex shaft; wherein the diameters of the second bosses are sequentially increased from the positioning side to the bearing side.
8. The paper clamping mechanism of claim 7, wherein each of said second bosses comprises: the second ring surface extends from the positioning surface to the bearing side direction.
9. The paper clamping mechanism of claim 8, wherein the second ring surface of each second boss is formed by gradually expanding and extending from the positioning surface of the second boss towards the bearing side.
10. A thermal printer, comprising:
a housing, comprising: the device comprises a bottom plate, a front panel, a rear panel, a first side plate and a second side plate, wherein the front panel, the rear panel, the first side plate and the second side plate are arranged on the bottom plate; the front panel and the rear panel are opposite to each other along the length direction of the bottom plate and are arranged in parallel; the first side plate and the second side plate are opposite in the width direction of the bottom plate and are arranged in parallel;
a first fixing plate and a second fixing plate; the first fixing plate is arranged on one side of the first side plate opposite to the second side plate, and the second fixing plate is arranged on one side of the second side plate opposite to the first side plate;
a paper clamping mechanism as claimed in any one of claims 6 to 9; the limiting plate of the paper clamping assembly is arranged on one side, opposite to the second fixing plate, of the first fixing plate, and the paper disc base plate of the positioning assembly is arranged on one side, opposite to the first fixing plate, of the second fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974489.XU CN212636942U (en) | 2020-09-10 | 2020-09-10 | Paper clamping assembly, paper clamping mechanism and thermal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974489.XU CN212636942U (en) | 2020-09-10 | 2020-09-10 | Paper clamping assembly, paper clamping mechanism and thermal printer |
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| Publication Number | Publication Date |
|---|---|
| CN212636942U true CN212636942U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021974489.XU Active CN212636942U (en) | 2020-09-10 | 2020-09-10 | Paper clamping assembly, paper clamping mechanism and thermal printer |
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| CN (1) | CN212636942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993799A (en) * | 2020-09-10 | 2020-11-27 | 孚凡科技(上海)有限公司 | Paper clamping assembly, paper clamping mechanism and thermal printer |
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2020
- 2020-09-10 CN CN202021974489.XU patent/CN212636942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993799A (en) * | 2020-09-10 | 2020-11-27 | 孚凡科技(上海)有限公司 | Paper clamping assembly, paper clamping mechanism and thermal printer |
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