CN220517837U - Driving mechanism for printing medium - Google Patents
Driving mechanism for printing medium Download PDFInfo
- Publication number
- CN220517837U CN220517837U CN202321880341.3U CN202321880341U CN220517837U CN 220517837 U CN220517837 U CN 220517837U CN 202321880341 U CN202321880341 U CN 202321880341U CN 220517837 U CN220517837 U CN 220517837U
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- plate body
- driving
- upper plate
- mounting frame
- wheel assembly
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- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000123 paper Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Abstract
The utility model discloses a driving mechanism of a printing medium, which can be used for printing the printing medium with uneven thickness and large thickness. A driving mechanism for printing medium includes a workbench; the workbench is provided with a paper pressing wheel assembly; the paper pressing wheel assembly comprises a mounting frame, wherein an elastic element is arranged in the mounting frame to realize the swinging of the mounting frame; the mounting frame is provided with a driven wheel; further comprising a drive wheel assembly; the driving wheel assembly is positioned above the paper pressing wheel assembly; the driving wheel assembly comprises a driving shaft, the height of the driving shaft is unchanged, and a driving wheel is arranged on the driving shaft; the motor is installed on the workstation, and the output shaft of motor drives the drive shaft and rotates, and the action wheel follows the drive shaft and rotates simultaneously, realizes printing medium and sends into.
Description
Technical Field
The utility model belongs to the technical field of printers, and particularly relates to a driving mechanism of a printing medium.
Background
A printer is one of the output devices of a computer for printing the results of computer processing on a related medium. The types of printing media are mainly classified from the viewpoint of use characteristics, and common media types are copy paper, inkjet paper, plain photo paper, glossy photo paper, high-quality glossy photo paper, matte paper, drawing paper, color machine paper, and the like.
The thickness of the plain paper is uniform, so that the thickness of the conventional printer manufactured by the method is fixed, the design can meet the printing requirement of printing media (including copy paper but not limited to paper) with uniform thickness of the paper, however, printing cannot be performed on media with nonuniform thickness, such as three-dimensional paper jam, kraft paper and the like; existing printers can print only a common thin print medium, and a print medium that is slightly thicker or thicker is difficult or impossible to print.
Disclosure of Invention
In view of the above drawbacks of the background art, an object of the present utility model is to provide a driving mechanism of a printing medium, which can be used for printing a printing medium having uneven thickness and large thickness.
In order to solve the technical problems, the aim of the utility model is realized as follows:
a driving mechanism for printing medium includes a workbench; the workbench is provided with a paper pressing wheel assembly; the paper pressing wheel assembly comprises a mounting frame, wherein an elastic element is arranged in the mounting frame to realize the swinging of the mounting frame; the mounting frame is provided with a driven wheel;
further comprising a drive wheel assembly; the driving wheel assembly is positioned above the paper pressing wheel assembly; the driving wheel assembly comprises a driving shaft, the height of the driving shaft is unchanged, and a driving wheel is arranged on the driving shaft;
the motor is installed on the workstation, and the output shaft of motor drives the drive shaft and rotates, and the action wheel follows the drive shaft and rotates simultaneously, realizes printing medium and sends into.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the mounting frame comprises a lower positioning piece and an upper fixing piece; the lower locating piece comprises a first lower plate body which is fixed by screws; two sides of the first lower plate body are convexly bent upwards to form a second lower plate body; the upper fixing piece comprises a first upper plate body, wherein two sides of the first upper plate body are convexly bent downwards to form a second upper plate body, and two sides of the first upper plate body are convexly bent upwards to form a third upper plate body; the pin shaft transversely penetrates through the two second lower plate bodies and the two second upper plate bodies to be fixedly hinged, and an elastic element is clamped between the first lower plate bodies and the first upper plate bodies; the driven wheels are rotatably connected between the two third upper plate bodies.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the elastic element is a torsion spring, the middle of the torsion spring is folded to form a middle supporting leg and two end supporting legs, the middle supporting leg is inserted into the first lower plate body, the two end supporting legs are inserted into the first upper plate body, and a plurality of elastic rings are wound between the middle supporting leg and the two end supporting legs.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the driving shaft is provided with a first synchronous wheel; a second synchronous wheel is arranged on the output shaft of the motor; a belt transmission is wound between the first synchronous wheel and the second synchronous wheel.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the workbench is provided with an alloy section, the upper surface of the alloy section is provided with a first clamping groove, the lower locating piece is arranged on the first clamping groove, and the screw penetrates through the first lower plate body to be screwed into the first clamping groove for internal fixation.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the middle support leg of the torsion spring is inserted into the first clamping groove, and the tail of the screw presses against the middle support leg.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a plurality of paper pressing wheel assemblies are arranged on the workbench side by side; the multiple groups of driving wheel assemblies are arranged side by side, and synchronous rotation is realized between adjacent driving wheel assemblies through belt winding.
Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:
compared with the prior art, the driving mechanism of the printing medium is characterized in that the workbench is provided with the mounting frame, the mounting frame is internally provided with the elastic element, and the mounting frame is provided with the driven wheel; the driving wheel assembly is arranged above the driven wheel, the driving wheel is arranged above the printing medium, and the surface of the printing medium to be printed is guaranteed to be flush all the time and consistent with the distance of the printing head.
The driven wheel is propped against the printing medium, and the elastic element in the driven wheel can enable the driven wheel to swing and adjust according to the thickness of the printing medium, so that the printing medium has a supporting function;
drawings
Fig. 1 is a schematic diagram of the overall side view of the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
Fig. 3 is a schematic view of the overall explosive structure of the present utility model.
Fig. 4 is a schematic view of the structure of the lower positioning member of the present utility model.
Fig. 5 is a schematic view of the structure of the upper fixture of the present utility model.
Fig. 6 is a schematic view of the torsion spring structure of the present utility model.
Fig. 7 is a schematic view of a part of the structure of the present utility model.
Reference numerals: a work table 01; a mounting frame 02; a lower positioning member 020; a first lower plate 0200; a second lower plate 0201; an upper fixing member 021; a first upper plate 0210; a second upper plate 0211; a third upper plate 0212; a torsion spring 03; middle leg 030; two end legs 031; an elastic ring 032; driven wheel 04; a drive wheel assembly 05; a drive shaft 050; a first synchronizing wheel 0500; a driving wheel 051; a motor 06; a second synchronizing wheel 060; a screw 07; a belt 08; alloy section 09; a first clamping groove 090;
Detailed Description
The utility model will be further described with reference to the following specific examples in conjunction with the accompanying drawings;
the embodiment provides a driving mechanism of a printing medium, which comprises a workbench 01; the workbench 01 is an internal structure of the printer or is a supporting plate of sheet metal as shown in fig. 3; the workbench 01 is provided with a paper pressing wheel assembly; the paper pressing wheel assembly is used for pressing the printing medium to convey forwards; the paper pressing wheel assembly comprises a mounting frame 02, wherein an elastic element is arranged in the mounting frame 02, so that the mounting frame 02 swings; the elastic element has the characteristic of elastic restoration, and can be pressed and reset; the mounting frame 02 is provided with a driven wheel 04; the driven wheel 04 is used for driving the printing medium to be conveyed;
preferably, the driven wheel 04 adopts a rubber roller, and a rolling shaft is arranged in the rubber roller;
further comprising a drive wheel assembly 05; the driving wheel assembly 05 is positioned above the paper pressing wheel assembly; the driving wheel assembly 05 comprises a driving shaft 050, the height of the driving shaft 050 is unchanged, and a driving wheel 051 is arranged on the driving shaft 050; the driving wheel 051 drives the printing medium to rotate, two end parts of the driving shaft 050 penetrate through the internal structure of the printer to be erected and fixed, and in order to enable the printing medium to rotate more smoothly, the driving shaft 050 is sleeved with a bearing; the length of the driving shaft 050 is designed according to the requirement, and preferably, the driving wheel 051 is a grinding wheel;
the motor 06 is installed on the workbench 01, the output shaft of the motor 06 drives the driving shaft 050 to rotate, and meanwhile, the driving wheel 051 rotates along with the driving shaft 050, so that printing medium is fed.
As described above, the capstan 051 of the printing medium of the present utility model is mounted to the upper position, and the contact surface of the capstan 051 and the printing medium is on the same plane, and is always kept unchanged; therefore, even if the thickness of the printing medium is uneven and consistent, the upper surface of the printing medium to be printed is always flush, so that the distance from the printing surface of the printing medium to the printing head is ensured to be consistent, and a stable printing effect is achieved;
while ensuring the flatness of the printing surface, the lower part of the printing medium is propped against the printing medium by using an independent driven wheel 04 with an elastic element; the driven wheel 04 is made of soft materials, and the driven wheel 04 is independent, so that the printing medium with different thickness can be supported, and the printing medium can be completely contacted with the driving wheel 051 on the printing medium. Since the lower driven wheel 04 is supported by an elastic member, the printing medium can be driven forward and backward.
In the specific use process, the printing medium is pressed between the driving wheel 051 and the driven wheel 04, the paper conveying motor 06 drives the driving shaft 050 to rotate in the paper conveying direction, and the printing medium rotates along with the driving wheel 051 under the action of friction force, so that the paper conveying action is realized; the driven pulley 04 is affected by the thickness of the printing medium, and the compression elastic member swings.
Further, the mounting frame 02 includes a lower positioning member 020 and an upper fixing member 021; the lower positioning member 020 comprises a first lower plate 0200, and the first lower plate 0200 is fixed by passing through the screw 07; two sides of the first lower plate 0200 are protruded and bent upwards to form a second lower plate 0201;
the upper fixing part 021 comprises a first upper plate 0210, wherein two sides of the first upper plate 0210 are convexly bent downwards to form a second upper plate 0211, and two sides of the first upper plate 0210 are convexly bent upwards to form a third upper plate 0212;
the pin shaft transversely penetrates through the two second lower plate bodies 0201 and the two second upper plate bodies 0211 to be fixedly hinged, and an elastic element is clamped between the first lower plate body 0200 and the first upper plate body 0210;
the driven wheel 04 is rotatably connected between the two third upper plate bodies 0212.
As described above, the mounting frame 02 adopts the lower positioning piece 020 and the upper fixing piece 021 to splice together, and the pin shaft passes through the two parts to realize hinged connection; the elastic element pushes the two parts against each other, so that the swing function can be realized; the driven wheel 04 is arranged on the upper fixing piece 021 and is matched with the driving wheel 051 to rotate;
further, the elastic element is a torsion spring 03, the middle of the torsion spring 03 is folded to form a middle support 030 and two end support 031, the middle support 030 is inserted into the first lower plate 0200, the two end support 031 is inserted into the first upper plate 0210, and a plurality of elastic rings 032 are wound between the middle support 030 and the two end support 031.
As described above, the torsion spring 03 is folded in half to form a symmetrical structure as shown in fig. 7, and has two sets of elastic rings 032, providing twice the elastic force. Is more practical than the existing single torsion spring.
Instead of the torsion spring 03, a compression spring, an elastic rubber block, or the like may be used;
further, a first synchronizing wheel 0500 is mounted on the driving shaft 050; the first synchronizing wheel 0500 is fixed with the driving shaft 050 by an embedded key; a second synchronizing wheel 060 is arranged on the output shaft of the motor 06; the second synchronizing wheel 060 embedded key is fixed with the output shaft; a belt 08 is wound between the first synchronizing wheel 0500 and the second synchronizing wheel 060 for transmission.
As described above, the belt 08 realizes that the motor 06 drives the driving shaft 050 to rotate, and the belt 08 is simple and practical;
in another embodiment, the motor 06 input gearbox is connected to the drive shaft 050 by a coupling.
Further, an alloy section 09 is mounted on the workbench 01, the upper surface of the alloy section 09 is provided with a first clamping groove 090, a lower positioning piece 020 is arranged on the first clamping groove 090, and a screw 07 passes through a first lower plate 0200 and is screwed into the first clamping groove 090 for internal fixation.
As described above, the alloy section 09 is provided with the first clamping groove 090, and the platen assembly can be mounted at a corresponding position on the first clamping groove 090 according to the requirement. Position adjustment is enabled.
Further, the middle leg 030 of the torsion spring 03 is inserted into the first catching groove 090, and the tail of the screw 07 presses the middle leg 030.
As described above, the screw 07 pushes the torsion spring 03 against the first locking groove 090, thereby preventing the torsion spring from being separated from the mounting frame 02 for a long time, and the whole device is more stable. And the maintenance problem is also reduced.
Preferably, in order to facilitate the rotation of the screw 07, a hole is formed in the first upper plate 0210 of the upper fixing member 021, so that a tool can be conveniently inserted into the screw 07.
Further, a plurality of paper pressing wheel assemblies are arranged on the workbench 01 side by side; the driving wheel assemblies 05 are arranged side by side, and the adjacent driving wheel assemblies 05 realize synchronous rotation through winding of the belt 08.
As described above, the platen roller assemblies and the driving wheel assemblies 05 arranged in parallel are applicable to printing media with different sizes and thicknesses, and meanwhile, the printing process is more stable and smooth, the printing efficiency is improved, and the printing quality is guaranteed.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected;
the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (6)
1. A drive mechanism for a print medium, comprising: comprises a workbench; the workbench is provided with a paper pressing wheel assembly; the paper pressing wheel assembly comprises a mounting frame, wherein an elastic element is arranged in the mounting frame to realize the swinging of the mounting frame; the mounting frame is provided with a driven wheel;
further comprising a drive wheel assembly; the driving wheel assembly is positioned above the paper pressing wheel assembly; the driving wheel assembly comprises a driving shaft, the height of the driving shaft is unchanged, and a driving wheel is arranged on the driving shaft;
a motor is arranged on the workbench, an output shaft of the motor drives the driving shaft to rotate, and meanwhile, the driving wheel rotates along with the driving shaft to realize the feeding of printing media;
the mounting frame comprises a lower positioning piece and an upper fixing piece; the lower locating piece comprises a first lower plate body which is fixed by screws; two sides of the first lower plate body are convexly bent upwards to form a second lower plate body;
the upper fixing piece comprises a first upper plate body, wherein two sides of the first upper plate body are convexly bent downwards to form a second upper plate body, and two sides of the first upper plate body are convexly bent upwards to form a third upper plate body;
the pin shaft transversely penetrates through the two second lower plate bodies and the two second upper plate bodies to be fixedly hinged, and an elastic element is clamped between the first lower plate bodies and the first upper plate bodies;
the driven wheels are rotatably connected between the two third upper plate bodies.
2. The drive mechanism for a print medium of claim 1, wherein: the elastic element is a torsion spring, the middle of the torsion spring is folded to form a middle supporting leg and two end supporting legs, the middle supporting leg is inserted into the first lower plate body, the two end supporting legs are inserted into the first upper plate body, and a plurality of elastic rings are wound between the middle supporting leg and the two end supporting legs.
3. The drive mechanism for a print medium of claim 1, wherein: the driving shaft is provided with a first synchronous wheel; a second synchronous wheel is arranged on the output shaft of the motor; a belt transmission is wound between the first synchronous wheel and the second synchronous wheel.
4. The drive mechanism for a print medium of claim 2, wherein: the workbench is provided with an alloy section, the upper surface of the alloy section is provided with a first clamping groove, the lower locating piece is arranged on the first clamping groove, and the screw penetrates through the first lower plate body to be screwed into the first clamping groove for internal fixation.
5. The drive mechanism for a print medium of claim 4, wherein: the middle support leg of the torsion spring is inserted into the first clamping groove, and the tail of the screw presses against the middle support leg.
6. The drive mechanism for a print medium of claim 1, wherein: a plurality of paper pressing wheel assemblies are arranged on the workbench side by side; the multiple groups of driving wheel assemblies are arranged side by side, and synchronous rotation is realized between adjacent driving wheel assemblies through belt winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321880341.3U CN220517837U (en) | 2023-07-17 | 2023-07-17 | Driving mechanism for printing medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321880341.3U CN220517837U (en) | 2023-07-17 | 2023-07-17 | Driving mechanism for printing medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220517837U true CN220517837U (en) | 2024-02-23 |
Family
ID=89925149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321880341.3U Active CN220517837U (en) | 2023-07-17 | 2023-07-17 | Driving mechanism for printing medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220517837U (en) |
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2023
- 2023-07-17 CN CN202321880341.3U patent/CN220517837U/en active Active
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