CN212581068U - Novel tape printer - Google Patents
Novel tape printer Download PDFInfo
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- CN212581068U CN212581068U CN202021252792.9U CN202021252792U CN212581068U CN 212581068 U CN212581068 U CN 212581068U CN 202021252792 U CN202021252792 U CN 202021252792U CN 212581068 U CN212581068 U CN 212581068U
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- transmission shaft
- helical compression
- compression spring
- sleeve
- circumferential surface
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Abstract
The utility model relates to a novel belt printer, include: the discharging damping structure comprises a fixing piece, a transmission shaft and a spiral pressure spring, wherein one of the fixing piece and the transmission shaft is provided with a tightly-matched inserted inner circumferential surface, the other one of the fixing piece and the transmission shaft is provided with a tightly-matched inserted outer circumferential surface, the tightly-matched inserted outer circumferential surface is tightly matched and connected with the inner circumferential surface of the corresponding end of the spiral pressure spring, and the tightly-matched inserted inner circumferential surface is tightly matched and connected with the outer circumferential surface of the corresponding end of the spiral pressure spring; when the blowing roller area transmission shaft forward rotation, the transmission shaft orders about helical compression spring and screws and make helical compression spring radial dimension diminish, the tight fit grafting inner peripheral surface forms the friction with helical compression spring and skids, helical compression spring will exert through transmission axial blowing roller when the reverse unscrewing resets and force its antiport's elastic damping power, order to order about blowing roller antiport when the blowing roller forward rotation is not pull in the material area and take the tension, the automatic tensioning material area, do not need the manual work to readjust the material area.
Description
Technical Field
The utility model relates to a novel belt printer.
Background
All can need the material to take the material area class material on thermal transfer printer, thermal printer, ink jet printer, correspond, need dispose on the printer and unreel roller and wind-up roll, at present, the mode comparatively commonly used is that unreel the roller and adopt unpowered design, and the wind-up roll is then rotated by the drive of rolling actuating mechanism, through drawing the material area in order to realize the material area and receive and release the operation. In fact, for the discharging roller, although no power is provided, the braking is usually realized by the friction force between the discharging roller and the frame, when the receiving roller stops rotating, the material belt does not apply force to the discharging roller any more, and the discharging roller stops rotating.
Above-mentioned mode that relies on friction braking is after using a period, the problem that friction braking effect reduces appears easily, lifts to stop when printing the printer head and prints, and the blowing roller still can continue the blowing under the inertia effect, leads to the material area to appear becoming flexible, influences the next normal printing, still needs artifical tensioning material area again, complex operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel belt printer to solve the blowing roller that relies on friction braking among the prior art and to continue the blowing easily when stopping printing and lead to the not hard up technical problem in material area after friction braking effect reduces.
In order to achieve the above object, the utility model provides a novel tape printer's technical scheme is: a novel tape printer comprising:
a frame;
the discharging roller is detachably and rotatably assembled on the rack, and the rotating direction of the discharging roller for discharging materials is defined as the forward direction;
the discharging damping structure provides elastic damping for the discharging roller to force the discharging roller to rotate reversely so as to tension the material belt;
the blowing damping structure includes:
the fixing piece is fixedly arranged on the rack;
the transmission shaft is coaxially assembled with the discharging roller in a rotation stopping manner;
two ends of the spiral pressure spring are correspondingly matched, inserted and assembled with the fixing piece and the transmission shaft in a tight fit manner;
one of the fixed part and the transmission shaft is provided with a close-fit plug-in inner peripheral surface, the other one of the fixed part and the transmission shaft is provided with a close-fit plug-in outer peripheral surface, the close-fit plug-in outer peripheral surface is inserted into the helical compression spring and is in close-fit connection with the inner peripheral surface of the corresponding end of the helical compression spring, and the close-fit plug-in inner peripheral surface is sleeved outside the helical compression spring and is in close-fit connection with the outer peripheral;
when the discharging roller drives the transmission shaft to rotate in the forward direction, the transmission shaft drives the spiral pressure spring to be screwed so that the radial size of the spiral pressure spring is reduced, the tight-fit inserting inner circumferential surface and the corresponding end of the spiral pressure spring form friction slip, the spiral pressure spring applies elastic damping force for forcing the discharging roller to rotate in the reverse direction through the transmission shaft when the discharging roller is loosened and reset in the reverse direction, and the discharging roller is driven to rotate in the reverse direction to tension the material belt when the material belt does not pull the discharging roller to rotate in the forward direction.
The beneficial effects are that: the utility model provides an among the belt printer, dispose blowing damping mechanism corresponding to the blowing roller, wherein, the tight fit grafting of helical compression spring and mounting and transmission shaft, utilize the inner peripheral surface of helical compression spring one end and corresponding tight fit outer peripheral face tight fit connection, the outer peripheral face of helical compression spring other end then is connected with corresponding tight fit inner peripheral surface tight fit, when blowing roller area transmission shaft forward rotation, the helical compression spring of screwing, helical compression spring radial dimension diminishes, can hoop tight on tight fit grafting outer peripheral face, at this moment, helical compression spring then can form the running fit that skids with tight fit grafting inner peripheral surface, guarantee normal rotation, because helical compression spring receives the effort that drives its screwing always, helical compression spring then can reverse production elastic damping, once the material area stops pulling, helical compression spring can loosen the release soon, helical compression spring radial dimension can resume the grow again, at the moment, the transmission shaft can be reversely driven to reversely rotate, so that the discharging roller is driven to reversely rotate to automatically tension the material belt, and the material belt does not need to be manually readjusted.
As a further improvement, the transmission shaft is supported and rotatably assembled on the fixed part, the transmission shaft is provided with an inner end for coaxial rotation stopping assembly with the discharging roller and an outer end extending to the outer side of the fixed part, the spiral pressure spring is sleeved on the transmission shaft, the inner circumferential surface of the tight-fit plug is arranged on the transmission shaft and is in tight-fit connection with the outer circumferential surface of the outer end of the spiral pressure spring, and the outer circumferential surface of the tight-fit plug is arranged on the fixed part and is in tight-fit connection with the inner circumferential surface of the inner end of the spiral pressure spring.
The beneficial effects are that: the spiral pressure spring is sleeved on the transmission shaft, so that the direction of the spiral pressure spring can be formed, and the two ends of the spiral pressure spring are conveniently connected with the corresponding close-fit splicing inner circumferential surface and the close-fit splicing outer circumferential surface in a close-fit manner.
As a further improvement, the outer peripheral surface of the tight-fit plug is a conical surface with gradually increased radial size from outside to inside.
The beneficial effects are that: the outer peripheral surface of the tight fit plug-in connection is designed into a conical surface, so that the spiral pressure spring is convenient to assemble.
As a further improvement, the transmission shaft comprises a shaft body and a force transmission sleeve, the force transmission sleeve is fixedly sleeved on the shaft body, the outer end of the spiral pressure spring is inserted into the force transmission sleeve, and the inner circumferential surface of the force transmission sleeve forms the tightly-matched inserted inner circumferential surface so as to be tightly matched and connected with the outer circumferential surface of the outer end of the spiral pressure spring.
The beneficial effects are that: the transmission shaft adopts a shaft body and a force transmission sleeve structure, the inner circumferential surface of the force transmission sleeve is conveniently utilized as a close fit splicing inner circumferential surface to be matched with the helical compression spring, and the whole structure is simple.
As a further improvement, the force transmission sleeve is assembled on the shaft body through a flat shaft rotation stopping structure in a rotation stopping mode, an axial positioning structure is further arranged on the shaft body and used for axially positioning the force transmission sleeve, and the axial positioning structure is matched with the flat shaft rotation stopping structure so as to fix the force transmission sleeve on the shaft body.
The beneficial effects are that: the force transmission sleeve is fixedly assembled on the shaft body through the flat shaft rotation stopping structure and the axial positioning structure, and the force transmission sleeve is simple in structure and convenient to install.
As a further improvement, the helical compression spring is a cylindrical spring.
The beneficial effects are that: the spiral compression ring adopts a cylindrical spring, so that the contact area is relatively large, and the spiral compression spring for screwing is conveniently and effectively driven.
As a further improvement, the fixing member includes a fixing sleeve, the transmission shaft is sleeved in the fixing sleeve with a gap, the inner end of the fixing sleeve is fixedly connected to the rack, the outer end of the fixing sleeve is inserted into the inner end of the helical compression spring, and the outer peripheral surface of the outer end of the fixing sleeve forms the tightly-fitted plug-in outer peripheral surface to be tightly fitted and connected with the inner peripheral surface of the inner end of the helical compression spring.
The beneficial effects are that: the mounting adopts fixed sleeve, has both made things convenient for the assembly transmission shaft, conveniently utilizes fixed sleeve's outer peripheral face as the tight fit grafting outer peripheral face again, has simplified overall structure.
As a further improvement, the inner end of the fixed sleeve is integrally provided with a mounting flange, and the mounting flange is provided with a screw mounting hole so as to mount the fixed sleeve on the rack through a screw mounting structure.
The beneficial effects are that: one end of the fixed sleeve is provided with the mounting flange, so that the fixed sleeve is conveniently and fixedly mounted on the rack.
As a further improvement, the inner end of the transmission shaft is a stop-rotation hole for the insertion assembly of the feed roller in a rotation stopping way.
The beneficial effects are that: utilize the hole of splining to only rotate with the blowing roller and peg graft, the dismouting is comparatively convenient.
As a further improvement, the hole bottom of the rotation stopping hole is provided with a pushing spring, and the pushing spring applies elastic acting force to the discharging roller to force the discharging roller to move inwards.
The beneficial effects are that: the elastic pushing acting force is applied by the pushing spring, so that the installation is convenient, meanwhile, the positioning precision of the discharging roller in the axial direction can be ensured, and the axial movement is convenient.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of a tape printer according to the present invention;
FIG. 2 is a schematic view of the unwind damping structure of FIG. 1;
FIG. 3 is a front view of the unwinding damping structure shown in FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is a schematic structural view of the support shaft of fig. 4.
Description of reference numerals:
the shaft assembly comprises a transmission shaft 1, a force transmission sleeve 10, a force transmission sleeve 11, a tightly-matched inserted inner circumferential surface 12, a shaft body 121, a middle annular groove 122, a flat shaft structure 123, an end annular groove, a spiral pressure spring 2, a fixing piece 3, a tightly-matched inserted outer circumferential surface 30, a mounting flange 31, a fixing sleeve 32, a rotation stopping hole 4, a support sleeve 5, a rack 100, a discharge damping structure 200, a discharge roller 300, a discharge roller 400, a discharge roller 500, a discharge driving motor 600 and an assembly shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model provides a tape printer's embodiment 1:
as shown in fig. 1 to 5, the tape printer in this embodiment is specifically a thermal transfer printer, and mainly includes a frame 100, a print head and a thermal transfer mechanism disposed on the frame 100, and a medium conveying mechanism disposed on the frame for conveying a medium to be printed, wherein when the thermal transfer mechanism continuously conveys the thermal transfer tape, the print head is heated to transfer an image onto the medium to be printed.
The carbon belt conveying mechanism mainly comprises an emptying roller 300, a receiving roller 400 and a middle reversing roller, wherein the emptying roller 300 with a belt coil is installed on the rack 100, a carbon belt is manually led out to be sequentially wound through the reversing roller and then connected onto the receiving roller 400, the receiving roller 400 is driven by a receiving driving motor 500 through a transmission mechanism to rotate, and the material belt is drawn to pass through a printing head to realize normal printing.
The rack mainly comprises clamping plates on two sides and an assembly shaft 600 in the middle, the assembly shaft 600 and the two clamping plates are fixedly assembled to form the whole rack body, the printing head is correspondingly and fixedly installed on the two clamping plates, some assembly shafts only provide fixing effect for the fixing shaft, other assembly shafts are rotating shafts and are rotatably assembled with the two clamping plates, and reversing rollers are arranged on the rotating shafts to allow the material belt to bypass.
In this embodiment, blowing roller 300 is unpowered design, its blowing pivoted power derives from the traction force that comes through the material area transmission when receiving the material roller and rotate, and, for the convenient strip roll that changes, the blowing roller designs into detachable mode, the corresponding bearing structure rotation assembly that is equipped with in the both ends of blowing roller and the frame, wherein the bearing structure of one end is bearing structure, the inner circle of this bearing has the hole, can with the cooperation of pegging graft of blowing roller, the bearing structure of one end then includes the jack in addition, the corresponding end grafting cooperation of jack confession blowing roller, set up the spring bottom the jack, during the use, can insert the jack with the corresponding end of blowing roller earlier, compression spring, then align the hole on the blowing roller other end and the corresponding bearing structure, then send into the blowing roller in the hole can.
Because the discharging roller is designed to be unpowered, the rotating force of the discharging roller is derived from the traction force of the material belt, when the printer is stopped suddenly, the discharging roller tends to continue to rotate, and the material belt is loosened, to avoid this situation, in this embodiment, the discharging damping structure 200 is provided for providing the discharging roller with elastic damping for forcing the discharging roller to rotate in the reverse direction to tension the material belt, it should be noted that the reverse direction is opposite, for convenience of description, the square of rotation for rotating the discharging roller to discharge is defined as the forward direction, and the "reverse direction" is to force the discharging roller to rotate in the reverse direction, and the discharged material belt is rewound on itself to tension the material belt.
As shown in fig. 2, the discharging damping structure 200 herein specifically includes a fixing member 3, a transmission shaft 1 and a helical compression spring 2, the transmission shaft 1 is rotatably supported and assembled in the fixing member 3, the fixing member 3 is installed at a corresponding outer side of a clamping plate to be fixedly installed on a rack, the fixing member 3 herein specifically includes a fixing sleeve 32, an inner end of the fixing sleeve 32 facing the rack is integrally provided with a mounting flange 31, and a screw installation hole is provided on the mounting flange 31 to install the fixing sleeve on the clamping plate through a screw installation structure.
The transmission shaft 1 is rotatably supported and assembled in the fixed sleeve 32, and a support sleeve 5 is provided at the outer end of the fixed sleeve 32, and the support sleeve 5 supports the transmission shaft 1.
The transmission shaft 1 specifically comprises a shaft body 12 and a force transmission sleeve 10, the force transmission sleeve 10 is fixedly installed on the shaft body 12, the force transmission sleeve 10 is specifically assembled on the shaft body 12 through a flat shaft rotation stopping structure in a rotation stopping mode, an axial positioning structure is further arranged on the shaft body 12 and used for carrying out axial positioning on the force transmission sleeve, and the axial positioning structure is matched with the flat shaft rotation stopping structure so as to fix the force transmission sleeve on the shaft body. The flat shaft rotation stopping structure herein specifically comprises a flat shaft structure 122 arranged on the shaft body 2 and a flat hole arranged at the corresponding outer end of the force transmission sleeve 10 so as to be positioned and inserted with the flat shaft. Because the flat shaft structure is a local structure, a step is formed on the shaft body, the step forms a part of the axial positioning structure, a stop ring is arranged on the opposite side so as to stop, position and assemble the force transmission sleeve on the shaft body, and an annular groove 123 at the end part is arranged on the shaft body 12 so as to facilitate the installation of the stop ring for the shaft.
In practice, the helical compression spring 2 herein is specifically a cylindrical spring, which is correspondingly sleeved outside the force transmission sleeve 1 to extend in the transverse direction, and has an inner end and an outer end opposite to each other, the inner end is arranged toward the frame, the outer end is arranged in the frame, the inner end of the helical compression spring 2 is tightly fitted with the fixed sleeve in an inserting manner, and the outer end is tightly fitted with the force transmission sleeve in an inserting manner. In fact, the inner end of the helical compression spring 2 is tightly fitted and sleeved outside the fixing sleeve 32, and the outer circumferential surface of the fixing sleeve 32 is inserted into the outer circumferential surface 30 as a tight fit and is tightly fitted and connected with the inner circumferential surface of the inner end of the helical compression spring 2. The outer end of the helical compression spring 2 is tightly fitted in the force transmission sleeve 10 in a penetrating way, and the inner circumferential surface of the force transmission sleeve 10 is inserted into the inner circumferential surface 11 in a tight fit way and is tightly fitted and connected with the outer circumferential surface of the outer end of the helical compression spring 2.
Moreover, in order to facilitate the fitting of the helical compression spring 2 on the fixing sleeve 32, the tightly fitted and inserted outer circumferential surface 30 has a taper to form a tapered surface with a gradually increasing radial dimension from the outside to the inside.
In addition, in order to prevent the over-fitting, the outer circumference of the fixing sleeve 32 is provided with a stepped structure, and a stepped surface is arranged toward the helical compression spring 2 to form a limit stopper.
The inner end of the shaft body 1 is provided with a rotation stopping hole 4, the rotation stopping hole 4 is a hexagonal hole, the rotation stopping hole serves as a jack for the insertion of the discharging roller to form rotation stopping ground shaft hole insertion assembly, a pushing spring is arranged at the hole bottom of the rotation stopping hole 4, the pushing spring is a tower spring, and the pushing spring applies elastic acting force to the discharging roller to force the discharging roller to move inwards. In design, when the fixing sleeve 32 is fixedly installed on the rack, the transmission shaft not only plays a role in force transmission, but also plays a corresponding role in support.
When the material receiving roller is driven to rotate by a corresponding motor, the material discharging roller is driven to rotate in the forward direction to discharge the material belt, the material discharging roller drives the transmission shaft 1 to rotate in the forward direction during rotation, friction torque is transmitted to the spiral pressure spring through the close-fit splicing inner circumferential surface on the force transmission sleeve 10, the spiral pressure spring 2 is driven to be screwed, the radial size of the spiral pressure spring is reduced, the inner end of the spiral pressure spring is effectively hooped on the close-fit splicing outer circumferential surface 30 of the fixing sleeve 32, the outer circumferential surface of the outer end of the spiral pressure spring 2 can form a friction slipping condition with the close-fit splicing inner circumferential surface after the size is reduced, and normal unwinding operation is.
When stopping printing, the material area no longer applys to the blowing roller and orders about forward rotation's effort, and at this moment, helical compression spring 2 then can automatic release, when reverse unscrewing promptly, applys to the blowing roller through transmission shaft 1 and forces its reverse rotation's elastic damping power to order about the blowing roller reverse rotation when the blowing roller forward rotation is not pull in the material area and order to tension the material area.
The discharging damping structure provided by the embodiment is inserted and connected with the fixed sleeve and the force transmission sleeve in a tight fit manner through the tight fit of the helical compression spring, the inner circumferential surface of one end of the helical compression spring is connected with the outer circumferential surface of the fixed sleeve in a tight fit manner, the outer circumferential surface of the other end of the helical compression spring is connected with the inner circumferential surface of the force transmission sleeve in a tight fit manner, when the helical compression spring is screwed, the radial size of the helical compression spring is reduced, the helical compression spring is hooped on the fixed sleeve, at the moment, the helical compression spring and the force transmission sleeve form a slipping rotation fit, the normal rotation is conveniently ensured, at the moment, because the spiral pressure spring is always subjected to the acting force for driving the spiral pressure spring to be screwed, the spiral pressure spring inevitably generates elastic damping in the reverse direction, once the material belt stops traction, the spiral pressure spring inevitably unscrews and releases, the radial size of the spiral pressure spring is restored to be larger, at the moment, the transmission shaft can be reversely driven to reversely rotate, and then the discharging roller is driven to reversely rotate to tension the material belt.
The tape printer in this embodiment is a thermal transfer printer, and of course, the discharging damping structure can also be applied to other printers requiring a tape discharging operation, such as a thermal printer
The utility model provides a tape printer's embodiment 2:
the difference from example 1 is mainly that: in embodiment 1, be equipped with the tight fit grafting outer peripheral face on the mounting, be equipped with the tight fit grafting inner peripheral surface on the transmission shaft, in order to realize the transmission moment of torsion, in this embodiment, set up the tight fit grafting outer peripheral face on the transmission shaft, and set up the tight fit grafting inner peripheral surface on the mounting, the mounting is frame construction, be fixed with a support section of thick bamboo on the frame, the transmission shaft rotates to support to assemble on frame construction, and be located the inboard of a support section of thick bamboo, the inner of helical compression spring then the suit is on the transmission shaft, at this moment, set up the tight fit grafting outer peripheral face on the transmission shaft, the outer end of helical compression spring then is connected with the inner peripheral surface tight fit of.
When the blowing roller drives the transmission shaft to rotate in the forward direction, the spiral pressure spring can receive the screwing acting force, the radial size becomes small, the outer end can form slipping friction fit with the supporting cylinder, and normal rotation is guaranteed. When the coil does not pull the discharging roller to rotate any more, the spiral pressure spring is loosened and released, and the transmission shaft is driven to drive the discharging roller to rotate reversely to tension the coil.
The utility model provides a tape printer's embodiment 3:
the difference from example 1 is mainly that: in embodiment 1, the helical compression spring is a cylindrical spring, which has a large contact area and large friction force in tight fit, and in this embodiment, a conical spring may also be used as the helical compression spring.
the difference from example 1 is mainly that: in embodiment 1, the tight-fit insertion peripheral surface on the fixing sleeve adopts a conical surface, so that the assembly of the helical compression spring is conveniently guided.
the difference from example 1 is mainly that: in the embodiment 1, the inner end of the transmission shaft is provided with a hexagonal hole, a rotation stopping hole is formed and is inserted and matched through rotation stopping transmission of the discharging roller, and on the basis of realizing rotation stopping matching, the rotation stopping hole in the inner end of the transmission shaft is a square hole in the embodiment.
Of course, in other embodiments, the rotation stopping holes with other surface numbers can be adopted, as long as the corresponding rotation stopping matching planes are provided, and the rotation stopping holes and the discharging roller can be subjected to rotation stopping insertion assembling.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made without inventive effort to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A novel tape printer comprising:
a frame;
the discharging roller is detachably and rotatably assembled on the rack, and the rotating direction of the discharging roller for discharging materials is defined as the forward direction;
it is characterized by also comprising:
the discharging damping structure provides elastic damping for the discharging roller to force the discharging roller to rotate reversely so as to tension the material belt;
the blowing damping structure includes:
the fixing piece is fixedly arranged on the rack;
the transmission shaft is coaxially assembled with the discharging roller in a rotation stopping manner;
two ends of the spiral pressure spring are correspondingly matched, inserted and assembled with the fixing piece and the transmission shaft in a tight fit manner;
one of the fixed part and the transmission shaft is provided with a close-fit plug-in inner peripheral surface, the other one of the fixed part and the transmission shaft is provided with a close-fit plug-in outer peripheral surface, the close-fit plug-in outer peripheral surface is inserted into the helical compression spring and is in close-fit connection with the inner peripheral surface of the corresponding end of the helical compression spring, and the close-fit plug-in inner peripheral surface is sleeved outside the helical compression spring and is in close-fit connection with the outer peripheral;
when the discharging roller drives the transmission shaft to rotate in the forward direction, the transmission shaft drives the spiral pressure spring to be screwed so that the radial size of the spiral pressure spring is reduced, the tight-fit inserting inner circumferential surface and the corresponding end of the spiral pressure spring form friction slip, the spiral pressure spring applies elastic damping force for forcing the discharging roller to rotate in the reverse direction through the transmission shaft when the discharging roller is loosened and reset in the reverse direction, and the discharging roller is driven to rotate in the reverse direction to tension the material belt when the material belt does not pull the discharging roller to rotate in the forward direction.
2. The new tape printer according to claim 1, wherein said transmission shaft is rotatably mounted to said fixing member, said transmission shaft has an inner end for coaxial rotation-stop mounting with said discharging roller and an outer end extending to the outside of said fixing member, said helical compression spring is mounted on said transmission shaft in a sleeving manner, said inner circumferential surface of said tight fit socket is disposed on said transmission shaft and is in tight fit connection with the outer circumferential surface of the outer end of said helical compression spring, said outer circumferential surface of said tight fit socket is disposed on said fixing member and is in tight fit connection with the inner circumferential surface of the inner end of said helical compression spring.
3. The tape printer according to claim 2, wherein said closely fitting engagement peripheral surface is a tapered surface having a gradually increasing radial dimension from outside to inside.
4. The tape printer according to claim 2, wherein said transmission shaft comprises a shaft body and a force transmission sleeve, said force transmission sleeve is fixedly sleeved on said shaft body, the outer end of said helical compression spring is inserted into said force transmission sleeve, and the inner peripheral surface of said force transmission sleeve forms said inner peripheral surface of said force transmission sleeve, so as to be tightly fitted and connected with the outer peripheral surface of the outer end of said helical compression spring.
5. The tape printer according to claim 4, wherein said force-transmitting sleeve is rotatably mounted to said shaft body by a flat shaft rotation-stopping structure, and an axial positioning structure is further provided on said shaft body for axially positioning said force-transmitting sleeve, said axial positioning structure cooperating with said flat shaft rotation-stopping structure to fix said force-transmitting sleeve to said shaft body.
6. A new tape printer according to any one of claims 2 to 5, wherein said helical compression spring is a cylindrical spring.
7. The novel tape printer according to any one of claims 2 to 5, wherein said fixing member comprises a fixing sleeve, said transmission shaft is sleeved in said fixing sleeve with a gap therebetween, an inner end of said fixing sleeve is fixedly connected to said frame, an outer end of said fixing sleeve is inserted into an inner end of said helical compression spring, and an outer peripheral surface of an outer end of said fixing sleeve forms said tightly fitting insertion peripheral surface to be tightly fitted with an inner peripheral surface of an inner end of said helical compression spring.
8. A novel tape printer according to claim 7, wherein said inner end of said fixing sleeve is integrally provided with a mounting flange having screw mounting holes for mounting the fixing sleeve to said frame by means of screw mounting structures.
9. A new tape printer according to any one of claims 2 to 5, wherein the inner end of said drive shaft is a swivel hole for a non-swivel plug-in mounting of the feed roll.
10. The tape printer according to claim 9, wherein a top urging spring is provided at a bottom of said rotation stop hole, said top urging spring applying an elastic force to said discharging roller to urge it inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021252792.9U CN212581068U (en) | 2020-07-01 | 2020-07-01 | Novel tape printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021252792.9U CN212581068U (en) | 2020-07-01 | 2020-07-01 | Novel tape printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212581068U true CN212581068U (en) | 2021-02-23 |
Family
ID=74654315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021252792.9U Active CN212581068U (en) | 2020-07-01 | 2020-07-01 | Novel tape printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212581068U (en) |
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2020
- 2020-07-01 CN CN202021252792.9U patent/CN212581068U/en active Active
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