CN112497936A

CN112497936A - Paper width detecting assembly and printer with same

Info

Publication number: CN112497936A
Application number: CN202011401596.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-03-16
Anticipated expiration: 2040-12-04
Also published as: CN112497936B

Abstract

The invention relates to a paper width detection assembly and a printer with the same, wherein the paper width detection assembly comprises a paper roll cavity for storing paper rolls, blocking pieces which are arranged in the paper roll cavity in a transposition mode, the blocking pieces are positioned at different positions of the paper roll cavity by virtue of the blocking pieces so as to block storage spaces of the paper rolls which adapt to different paper roll widths, and the printer further comprises a position detector which is used for detecting the positions of the blocking pieces and feeding back the position information of the blocking pieces to a printing system of the printer, so that the printer can switch a printing mode which adapts to the current paper width according to the position information. The paper width detection assembly provided by the invention can automatically identify the paper width after manually adjusting the paper width, thereby saving the procedure of manually selecting the printing size on an operation interface.

Description

Paper width detecting assembly and printer with same

Technical Field

The invention relates to the field of printers, in particular to a paper width detection assembly of a printing paper roll.

Background

In order to adapt to different printing needs, a printer often needs the printing scroll that can the different width of adaptation, like common 2 cun paper, 3 cun paper and 4 cun paper, therefore the printer usually can set up a paper clamping mechanism, paper clamping mechanism has the gear of the different sized scroll of adaptation, but when user's manual adjustment gear, change the scroll back, still need to select the printing paper size of printing the operation next to carry out at printer printing system's operation interface manually, that is to say, need the printing mode of the printing paper of manual switching current size, just can continue to print, its process is comparatively inconvenient.

Disclosure of Invention

Therefore, in order to solve the above problems, the present invention provides a paper width detecting assembly for automatically detecting a paper width and a printer having the same.

The invention is realized by adopting the following technical scheme:

the invention provides a paper width detection assembly, which comprises a paper roll cavity for storing paper rolls, blocking pieces arranged in the paper roll cavity in a transposition mode, a position detector and a printing system, wherein the blocking pieces are positioned at different positions of the paper roll cavity to block storage spaces of the paper rolls adapting to different paper roll widths, and the position detector is used for detecting the positions of the blocking pieces and feeding back the position information of the blocking pieces to the printing system of the printer, so that the printer can switch a printing mode adapting to the current paper width according to the position information.

The paper roll detection device comprises a separation blade, a paper roll cavity and a position detector, wherein the separation blade is provided with a first positioning structure, a plurality of second positioning structures matched with the first positioning structures are arranged at different positions of the paper roll cavity in the length direction of the paper roll cavity, the separation blade is positioned at different positions of the paper roll cavity through positioning matching of the first positioning structures and the second positioning structures, so that the separation blade is separated from a storage space of paper rolls adapting to different paper roll widths in the paper roll cavity, the position detector comprises a trigger part and a triggered part, the trigger part is arranged on the separation blade, the triggered part comprises a plurality of induction parts arranged at different positions, and when the separation blade is positioned at different positions of the paper roll cavity, the trigger part can trigger corresponding induction parts in a follow-up mode, so that the position information is generated.

Wherein the flap is slidably disposed in the roll chamber based on manufacturing and installation considerations, the trigger is a follower attached to the flap that follows the sliding movement of the flap, and the triggered member is fixedly disposed in a path of movement of the follower that follows the movement of the flap.

The follower is provided with at least one pair of conductive contacts, the sensing part is a plurality of conductive contacts arranged on the triggered piece, and the conductive contacts form a loop when the follower moves along with the sliding of the blocking piece, so that the position information is generated.

The follower is provided with a plurality of blocking type photoelectric sensors arranged on a triggered piece, and when the follower moves along with the sliding of the blocking piece, the blocking piece blocks the blocking type photoelectric sensors, so that the position information is generated.

Wherein, for simple and convenient, realize reliably the location cooperation, the separation blade including be flaky main part first location structure be swing joint be in moving part on the main part, second location structure is in a plurality of constant head tanks that different positions in the length direction in scroll chamber set up, the moving part can the activity stretch out the main part to imbed in the constant head tank, thereby realize the location cooperation.

In order to improve the detection reliability, the triggering element is the moving element, and the triggered element is a press switch arranged in the positioning groove.

Based on installation and manufacturing considerations, the push switch comprises a conductive contact serving as the sensing part, a metal elastic sheet is further fixed around the conductive contact, and when the moving part is embedded into the positioning groove, the metal elastic sheet is pressed to enable the metal elastic sheet and the conductive contact to form a loop so as to generate the position information.

Based on installation and manufacturing considerations, the push switch comprises two disconnected conductive contacts serving as the sensing portion, a U-shaped metal elastic sheet is further fixed on the moving member, and when the moving member is embedded into the positioning groove, the metal elastic sheet is simultaneously contacted with the two disconnected conductive contacts, so that the two disconnected conductive contacts are conducted, and the position information is generated.

Based on the paper width detecting assembly, the invention further provides a printer, and the printer comprises the paper width detecting assembly.

The invention has the following beneficial effects: the paper width detection assembly provided by the invention can automatically identify the paper width after manually adjusting the paper width, thereby saving the procedure of manually selecting the printing size on an operation interface.

Drawings

FIG. 1 is a schematic perspective view (close cover) of a printer according to embodiment 1;

FIG. 2 is a schematic perspective view (uncapped) of the printer in embodiment 1;

figure 3 is a schematic view of a roll of paper in example 1 placed in a second roll chamber;

figure 4 is a schematic view showing the blocking piece arranged in the second roll chamber in the embodiment 1;

FIG. 5 is a perspective view of the baffle plate in example 1;

FIG. 6 is an exploded view of the baffle plate in embodiment 1;

FIG. 7 is (a) a schematic view of the lock lever in an unlocked position in embodiment 1;

FIG. 8 is (a) a schematic view showing the lock lever in the lock position in embodiment 1;

fig. 9 is a schematic view (two thereof) of the lock lever in the unlock position in embodiment 1;

FIG. 10 is a schematic view of the lock lever in the lock position in embodiment 1 (second thereof);

FIG. 11 is a schematic view of a positioning groove in embodiment 1;

FIG. 12 is a schematic perspective view of the lock lever in embodiment 1;

fig. 13 is a schematic perspective view of the first housing in embodiment 1;

fig. 14 is a schematic view of a motion plate and a detection plate in embodiment 1;

fig. 15 is a schematic view of the conductive contact on the moving plate in embodiment 1;

FIG. 16 is a schematic view of a position detector according to embodiment 2;

FIG. 17 is a schematic view showing the position detector of embodiment 3 disposed in the positioning groove;

FIG. 18 is a schematic view of a position detector according to embodiment 3.

Detailed Description

To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The invention will now be further described with reference to the accompanying drawings and detailed description.

Example 1:

referring to fig. 1 to 3, as a preferred embodiment of the present invention, there is provided a printer, and more particularly, a portable small printer, including a first cover 1 and a second cover 2 rotatably connected together by a rotating shaft, wherein the first cover 1 can be turned over relative to the second cover 2 to open or close the printer, the first cover 1 and the second cover 2 are respectively provided with a first paper roll cavity 11 and a second paper roll cavity 21, which are recessed at corresponding positions, and when the first cover 1 and the second cover 2 are closed, the first paper roll cavity 11 and the second paper roll cavity 21 are engaged to form a paper roll cavity matching the shape of a paper roll, as shown in fig. 3, which shows a situation that a paper roll 4 is placed in the second paper roll cavity 21 when the cover is opened.

Referring to fig. 4, a blocking plate 3 is disposed in the second paper roll cavity 21, and the blocking plate 3 can slide along the second paper roll cavity 21 in the second paper roll cavity 21 and can be fixed and positioned at different positions in the second paper roll cavity 21, so as to limit the installation space for adapting to paper rolls of different sizes. Specifically, referring to fig. 5-6, the blocking plate 3 includes a first housing 31 and a second housing 32 that are joined to each other, and a lock bar 33 disposed between the first housing 31 and the second housing 32, the first housing 31 and the second housing 32 are substantially symmetrical in shape, and the two housings can be fixedly joined together by clamping, screwing, or the like; the first shell 31 is provided with a sliding block 311 extending along the thickness direction of the blocking piece 3 at the outer side edge thereof, the sliding block 311 and the first shell 31 are integrally formed, and referring to fig. 4, a sliding groove 211 extending along the length direction of the second paper roll cavity 21 is arranged at the side edge of the second paper roll cavity 21, the sliding block 311 is connected in the sliding groove 211 in a sliding manner, and the blocking piece 3 is limited to stably slide in the length direction of the second paper roll cavity 21 through a sliding pair of the sliding block 311 and the sliding groove 211; the middle position of the inner side of the second casing 32 is provided with a pivot post 321, the lock rod 33 is approximately in a V shape and comprises a first section 332 with a short length and a second section 333 with a long length, the first section 332 and the second section 333 are connected in an acute angle and approximately in a V shape, a pivot hole 331 is arranged at the joint of the first section 332 and the second section 333 corresponding to the pivot post 321, the lock rod 33 can be assembled on the second casing 32 in a swinging way through the sleeved assembly of the pivot post 321 and the pivot hole 331, and the free end of the second section 333 is connected with a toggle part 334. Referring to fig. 7-10, the blocking plate 3 is formed by the first housing 31 and the second housing 32 being joined to form a first exposed hole 34 and a second exposed hole 35, the lock lever 33 can swing to expose the free end of the first section 332 through the first exposed hole 34, so that the free end of the first section 332 forms a locking tongue, and in cooperation with the locking tongue, a positioning groove 212 (fig. 11) is disposed in the second paper roll cavity 21, when the lock lever 33 is locked into the positioning groove 212 by the free end of the second section 333, the positioning of the blocking plate 3 is completed, the positioning groove 212 can be disposed in a plurality in the length direction of the second paper roll cavity 21 to form different locking positions of the blocking plate 3, i.e., different size gear positions of the paper rolls, in this embodiment, three positioning grooves 212 are disposed to cooperate with 2 inch paper, 3 inch paper and 4 inch paper. The toggle part 334 is exposed through the second exposure hole 35 to form a force application part for manually toggling the swing of the lock rod 33, so that the outward side of the toggle part 334 is shaped and bent to increase friction force, during actual use, the lock rod 33 is unlocked through manual toggling, after the position of the separation blade 3 is adjusted, the lock rod 33 is manually toggled to be locked, and then the position adjustment of the separation blade 3 is completed. In order to limit the extreme position of the side swing of the lock lever 33 to maintain the stability of the free end of the first segment 332 in the locking position (see fig. 8) and the unlocking position (see fig. 7), a first limiting portion 322 and a second limiting portion 323 are disposed on the inner side surface of the second housing 32 to respectively stop the side swing of the lock lever 33 in two directions, and referring to fig. 12-13, a first locking groove 3332 and a second locking groove 3334 are disposed on the side surface of the second segment 333 facing the first housing 31, the first locking groove 3332 and the second locking groove 3334 are disposed in left and right directions and are communicated in a "8" shape for injection molding, the first locking groove 3332 is opened with a first inclined guide groove 3331 on the side substantially away from the second locking groove 3334, the second locking groove 3335 is opened with a second inclined guide groove 3335 on the side substantially away from the first locking groove 3332, the first inclined guide groove 3331, the first locking groove 3332, the second locking groove 3334 and the second inclined guide groove 3335 are disposed along the pivot direction of the lock lever 33, a first protrusion 313 and a second protrusion 312 are provided on the inner side of the first housing 31 corresponding to the first locking groove 3332 and the second locking groove 3334, and when the locking bar 33 swings to the unlocking position (i.e., the position of the locking bar 33 in fig. 7), the second protrusion 312 is guided by the second inclined guide groove 3335 to be locked into the second locking groove 3334, thereby locking the locking bar 33; when the lock lever 33 swings to the locking position (i.e., the position of the lock lever 33 in fig. 8), the first protrusion 313 is guided to be caught in the first locking groove 3332 through the first inclined guide groove 3331, thereby restraining the lock lever 33. The lock bar 33 can be stabilized at the locking position or the unlocking position by the first limiting part 322 and the second limiting part 323 on the second housing 32 and the matched groove column clamping structure on the lock bar 33 and the first housing 31.

With continued reference to fig. 2-3, the first roll chamber 11 and the second roll chamber 21 are provided with first ribs 110 and second ribs 210, respectively, which are raised to reduce the contact area between the rolls and the roll chamber, and to reduce the friction of the rolls in the paper compartment, thereby reducing the resistance to the rolls when they are dragged. In order to avoid the barrier formed by the rib structure to the sliding of the blocking plate 3, refer to fig. 7, the stopper 3 is provided with a first protruding supporting leg 36, a second supporting leg 37, a third supporting leg 38 and a fourth supporting leg 39, the first supporting leg 36 and the second supporting leg 37 are arranged on the lower side edge of the stopper 3, an abdicating groove for abdicating the rib on the bottom wall of the second paper roll cavity 21 is formed between the first supporting leg 36 and the second supporting leg 39, the third supporting leg 38 and the fourth supporting leg 39 are arranged on the right side edge of the stopper 3, an abdicating groove for abdicating the rib on the side wall of the second paper roll cavity 21 is formed between the third supporting leg 36 and the fourth supporting leg 39, the contact part of the blocking plate 3 with the second paper roll cavity 21 and the rib on the second paper roll cavity 21 are staggered, so as to avoid the blocking of the blocking plate 3 by the rib.

As described above, in the present embodiment, the specific operations of the barrier 3 for adjusting the paper width are as follows: through the unblock of manual stirring locking lever 33, adjustment separation blade 3 is behind the position of scroll intracavity, and manual stirring locking lever 33 locking is again in the constant head tank 212 of different positions, and it is very convenient to use, to the printer of the difference of demand, can set up different gears.

In order to automatically feed back the size of the printing paper to be printed next to the printing system after adjusting the position of the blocking sheet 3, thereby automatically switching the printing mode of the paper with different sizes, the embodiment is further provided with a position detector which detects the position of the blocking sheet 3 and feeds back the position information of the blocking sheet 3 to the printing system.

As shown in fig. 11, in the present embodiment, the position detector includes a moving plate 5 fixed on the blocking plate 3, and a detecting plate 6 (as a triggered member) disposed on a moving path of the moving plate 5 (as a triggering member and as a follower), the moving plate 5 moves along with the blocking plate 3, the detecting plate 6 is fixed on the main body of the second cover 2, preferably, the moving plate 5 is fixed on an outer side of the sliding block 311 away from the second paper roll chamber 21, so that the moving plate 5 does not interfere with the second scroll chamber 21, and referring to fig. 14-15, a contact sheet 7 is fixed on the moving plate 5, the contact sheet 7 has at least a pair of conductive contacts 71 with gold-plated surfaces, the sensing plate 6 is provided with a conductive contact 61 (as a sensing part), when the moving plate 5 moves along with the baffle 3, the conductive contact 71 contacts the conductive contact 61 to form a loop to detect the position of the shutter 3. Preferably, the conductive contacts 71 are provided with six pairs to improve the detection stability.

The paper width detecting assembly formed by the paper roll cavity, the blocking piece 3 sliding in the paper roll cavity and the position detector for detecting the blocking piece 3 can automatically identify the paper width after manually adjusting the paper width, so that the procedure of manually selecting the printing size on an operation interface is omitted. The present embodiment describes the specific structure and function of the paper width detecting assembly with a small portable printer, but the paper width detecting assembly of the present embodiment can also be applied to other types of printers.

The baffle 3 in this embodiment is disposed in the second roll chamber 21, and in other embodiments, it can be disposed in the first roll chamber 11, which is obviously realized based on the technical principle provided by this embodiment.

Example 2:

as a preferred embodiment of the present invention, a printer is provided, which has a structure similar to the printer in embodiment 1, and includes a first cover 1, a second cover 2, a paper roll chamber, a blocking sheet 3, and the like, and has the technical effects of the same structure, and the only difference from the printer in embodiment 1 is the structure of a position detector, as shown in fig. 16, in this embodiment, a stop 51 replaces the contact sheet 7 in embodiment 1, a blocking type photoelectric sensor 62 replaces the conductive contact 61 in embodiment 1, and when the moving plate 5 moves along with the blocking sheet 3, the stop 51 triggers the blocking type photoelectric sensor 62, so as to detect the position of the stop 3.

In both the embodiment and the embodiment 1, a follower is attached to the blocking sheet 3, and the position detection of the blocking sheet 3 is realized by the sliding of the follower, so that the parts and the installation are simple.

Example 3:

as a preferred embodiment of the present invention, a printer is provided, which has a structure similar to the printer in embodiment 1, and includes a first cover 1, a second cover 2, a paper roll chamber, a blocking sheet 3, and the like, and has the same technical effects, the only difference with the printer in embodiment 1 is that the structure of the position detector is different, in this embodiment, the position detector is a detector 8, referring to fig. 17-18, the detector 8 includes a detection plate 82, conductive contacts 83 are disposed on the detection plate 82, a suspended metal elastic sheet 81 is disposed around each conductive contact 83, the metal elastic sheet 81 and the conductive contacts 83 (collectively serving as triggered members) form a push switch and are disposed in a positioning groove 212, when a lock bar 33 (serving as a trigger) of the blocking sheet 3 is locked into the positioning groove 212 by a free end of a second section 333, the metal elastic sheet 81 is pressed to make the metal elastic sheet 81 and the conductive contacts 83 contact to form a loop, thereby detecting the position of the stopper 3.

In addition, similarly, the metal elastic sheet 81 may also be directly and fixedly connected to the free end of the second section 333, two disconnected conductive contacts are disposed in the positioning slot 212, when the second section 333 swings, the metal elastic sheet 81 is driven to extend into the positioning slot 212, and the metal elastic sheet 81 is simultaneously contacted with the two disconnected conductive contacts, so as to conduct the two disconnected conductive contacts, thereby detecting the position of the stopper 3.

In this embodiment, the position of the blocking piece 3 is detected by the positioning and matching motion of the locking bar 33 and the positioning groove 212, and the reliability is higher.

In the present embodiment, the push switch is disposed in the positioning groove 212 to form the position detector, so the structure of the position detector provided in the present embodiment can also be applied to the most common plug-in paper width adjusting mechanism, i.e. the plug-in paper width adjusting mechanism: the flap is not slidably disposed in the roll chamber but is removably positioned in the positioning slot 212, and the user can manually remove the flap from the positioning slot 212 and insert the flap into the positioning slot 212 at different positions to achieve the adjustment of the paper width. Preferably, the mode that the baffle plate is arranged in the paper roll cavity in a sliding mode is adopted, so that the operation of a user can be facilitated.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A paper width detection assembly is characterized in that: the paper roll positioning device comprises a paper roll cavity for storing paper rolls, a blocking piece which is arranged in the paper roll cavity in a position-replaceable manner, and a position detector, wherein the blocking piece is positioned at different positions of the paper roll cavity to block storage spaces of the paper rolls adapting to different paper roll widths, and the position detector is used for detecting the position of the blocking piece and feeding back the position information of the blocking piece to a printing system of a printer, so that the printer can switch a printing mode adapting to the current paper width according to the position information.

2. The paper width detecting device as claimed in claim 1, wherein: the separation blade has first location structure, the different positions in its length direction in scroll chamber are equipped with a plurality of matches the second location structure of first location structure, through the location fit of first location structure and second location structure, make the separation blade be located the different positions in scroll chamber, thereby the separation blade separates the parking space who adapts to the scroll of different scroll widths in the scroll chamber, the position detector includes trigger piece and triggered piece, trigger piece sets up on the separation blade, triggered piece is including setting up a plurality of response portions in different positions, when the separation blade is located the different positions in scroll chamber, follow-up trigger piece can trigger corresponding response portion, thereby produces position information.

3. The paper width detecting device as claimed in claim 2, wherein: the shutter is slidably disposed in the paper roll cavity, the trigger member is a follower attached to the shutter to move along the sliding of the shutter, and the triggered member is fixedly disposed on a moving path along which the follower moves along the shutter.

4. The paper width detecting device as claimed in claim 3, wherein: the follower is provided with at least one pair of conductive contacts, the sensing part is a plurality of conductive contacts arranged on the triggered piece, and when the follower moves along with the sliding of the blocking piece, the conductive contacts and the conductive contacts form a loop, so that the position information is generated.

5. The paper width detecting device as claimed in claim 3, wherein: the follower is provided with a blocking piece, the sensing part is a plurality of blocking type photoelectric sensors arranged on the triggered piece, and when the follower moves along with the sliding of the blocking piece, the blocking piece blocks the blocking type photoelectric sensors, so that the position information is generated.

6. The paper width detecting device as claimed in claim 2, wherein: the separation blade including be flaky main part first location structure is swing joint be moving part on the main part, second location structure is in a plurality of constant head tanks that different positions in the length direction in scroll chamber set up, the moving part can move about to stretch out the main part to imbed in the constant head tank, thereby realize the location cooperation.

7. The paper width detecting device as claimed in claim 6, wherein: the triggering piece is the movable piece, and the triggered piece is a press switch arranged in the positioning groove.

8. The paper width detecting device as claimed in claim 7, wherein: the push switch comprises a conductive contact serving as the sensing part, a metal elastic sheet is further fixed around the conductive contact, and when the moving part is embedded into the positioning groove, the metal elastic sheet is pressed to enable the metal elastic sheet and the conductive contact to form a loop so as to generate the position information.

9. The paper width detecting device as claimed in claim 7, wherein: the push switch comprises two disconnected conductive contacts serving as the sensing part, a U-shaped metal elastic sheet is further fixed on the moving part, and when the moving part is embedded into the positioning groove, the metal elastic sheet is simultaneously contacted with the two disconnected conductive contacts, so that the two disconnected conductive contacts are conducted, and the position information is generated.

10. A printer, characterized by: the printer has the paper width detecting assembly of any one of claims 1 to 9.