A label printer

Abstract

The present invention is applicable to the field of printing technology, and provides a label printer, including: an upper cover, provided with a toggle lever; a bottom shell, provided with a paper slot, a paper outlet is provided between the bottom shell and the upper cover, a paper feeding channel is formed between the paper slot and the paper outlet, a printing rubber roller is provided on one side of the paper feeding channel, and a positioning groove is provided on the bottom shell; a pusher is rotatably arranged in the positioning groove, and when the upper cover covers the bottom shell, the toggle lever extends into the positioning groove and abuts against one side of the pusher; a movement assembly, including a print head, and the print head is located on the opposite side of the printing rubber roller; a linkage arm, rotatably arranged in the bottom shell, and the print head and the pusher are respectively arranged on opposite sides of the linkage arm, and when the upper cover rotates and locks the bottom shell, the toggle lever pushes the pusher so that the linkage arm drives the print head to rotate toward the printing rubber roller and abut against the printing rubber roller. By driving the print head to move toward the printing rubber roller, friction between the print head and the printing rubber roller can be avoided, thereby avoiding deformation of the print head and ensuring the printing effect.

Description

Technical Field

[0001] The invention belongs to the technical field of printing, and in particular relates to a label printer. Background Art

[0002] Current label printers usually use boxed ribbons for printing. When printing, the ribbon is transported to the printing area of ​​the print head, and the print roller and the print head cooperate to apply force to the ribbon to compress it to achieve printing. After printing is completed, the cutter cuts it to become a usable label. The existing label printer print head and print roller use a plug-in method to compress the ribbon, that is, the print head or the print roller is always cut in or out from the side of the other. This method causes the print head to always rub against the print roller during the process of driving the print head and the print roller to cooperate, which can easily cause the print head to deform, thereby affecting the printing effect. Summary of the invention

[0003] The label printer provided by the embodiment of the present invention aims to solve the technical problem in the prior art that the printing head driving method easily causes deformation and affects the printing effect.

[0004] The embodiment of the present invention is implemented as follows: a label printer, comprising:

[0005] An upper cover, the inner surface of which is provided with a toggle lever;

[0006] The bottom shell is rotatably connected with the upper cover, a paper placement slot is provided on one side of the bottom shell connected with the upper cover, a paper outlet is provided between the bottom shell and the upper cover, a paper feeding channel is formed between the paper placement slot and the paper outlet, a printing rubber roller is provided on one side of the paper feeding channel, and a positioning slot for the toggle rod to be inserted is provided on the bottom shell;

[0007] A push member is rotatably disposed in the positioning groove, and when the upper cover covers the bottom shell, the toggle rod extends into the positioning groove and abuts against one side of the push member;

[0008] A core assembly is disposed in the bottom shell, the core assembly includes a print head, and the print head is movably disposed on the opposite side of the paper feeding channel to the print rubber roller;

[0009] The linkage arm is rotatably disposed in the bottom shell, the print head and the pushing member are respectively disposed on opposite sides of the rotational connection between the linkage arm and the bottom shell, when the upper cover is rotated to lock the bottom shell, the toggle rod pushes the pushing member to rotate the linkage arm, and the linkage arm drives the print head to rotate toward the print rubber roller and abut against the print rubber roller.

[0010] Furthermore, the distance from the pushing member to the rotational connection between the linkage arm and the bottom shell is greater than twice the distance from the print head to the rotational connection between the linkage arm and the bottom shell.

[0011] Furthermore, the linkage arm has a bent structure from the pushing member to the portion where it is rotatably connected to the bottom shell.

[0012] Furthermore, a plurality of first clamping portions are provided at an edge of one side where the upper cover is connected to the bottom shell, and the plurality of first clamping portions are evenly spaced around the circumference, and a plurality of second clamping portions corresponding one to one to the first clamping portions are provided at one side where the bottom shell is connected to the upper cover, and when the upper cover covers the bottom shell, the first clamping portion is located on one side of the second clamping portion, and when the upper cover rotates on the bottom shell, the first clamping portion is fixed in cooperation with the second clamping portion.

[0013] Furthermore, the toggle rod and the first clamping portion are arranged on the same circumference.

[0014] Furthermore, a first protrusion is provided on the inner side of the first clamping portion, and a second protrusion is provided on the outer side of the second clamping portion. When the upper cover rotates, the first protrusion abuts against the bottom of the second protrusion.

[0015] Furthermore, a slope is provided on one side of the second protrusion close to the first protrusion.

[0016] Furthermore, a protrusion is provided on the surface where the second protrusion abuts against the first protrusion.

[0017] Furthermore, the pushing member includes a main body portion rotatably connected to the bottom shell and a pushing portion connected to one side of the main body portion, and the pushing portion is an arc-shaped structure.

[0018] Furthermore, the label printer further comprises a buffer reset member, which is connected between the push member and the linkage arm. When the toggle rod cancels the force on the push member, the buffer reset member provides the push member with a driving force to return to its original position.

[0019] The beneficial effects achieved by the present invention are as follows: the upper cover and the bottom shell are positioned by inserting the toggle rod of the upper cover into the positioning groove, and the toggle rod abuts against the pusher when inserted into the positioning groove. When the upper cover rotates and is locked with the bottom shell, the toggle rod pushes the pusher to rotate, and the pusher pushes the linkage arm to rotate, and the linkage arm drives the print head to abut against the print rubber roller to achieve compression of the label paper, thereby achieving the preparatory work before printing. The label printer provided by the present invention can avoid friction between the print head and the print rubber roller by driving the print head to move toward the print rubber roller, compared with the plug-in drive print head, thereby avoiding deformation of the print head and ensuring the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional diagram of a label printer provided by an embodiment of the present invention;

[0021] Figure 2 is a partially exploded schematic diagram of a label printer provided by an embodiment of the present invention;

[0022] Figure 3 yes Figure 2 Further breakdown of the schematic;

[0023] Figure 4 It is a schematic diagram of the upper cover structure of a label printer provided by an embodiment of the present invention;

[0024] Figure 5 It is a structural schematic diagram of a linkage arm of a label printer provided by an embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of a core component and an intermediate body of a label printer provided by an embodiment of the present invention;

[0026] Figure 7 yes Figure 3 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] See also Figure 1-4The embodiment of the present invention provides a label printer, including an upper cover 1, a bottom cover, a pusher 4, a movement assembly, and a linkage arm 7. The inner surface of the upper cover 1 is provided with a toggle rod 11, and the inner surface refers to the surface where the upper cover 1 covers the bottom shell 2. The bottom shell 2 is rotatably connected to the upper cover 1. A paper placement slot 21 is provided on the side where the bottom shell 2 and the upper cover 1 are connected. A paper outlet 9 is provided between the bottom shell 2 and the upper cover 1. A paper feeding channel is formed between the paper placement slot 21 and the paper outlet 9. A printing rubber roller 3 is provided on one side of the paper feeding channel. A positioning slot 22 for inserting the toggle rod 11 is provided on the bottom shell 2. The pusher 4 is rotatably arranged in the positioning slot 22. When the upper cover 1 covers the bottom shell 2, the toggle rod 11 is rotated. The rod 11 extends into the positioning groove 22 and abuts against one side of the push member 4. The movement assembly is arranged in the bottom shell 2. The movement assembly includes a print head 51. The print head 51 is movably arranged on the opposite side of the paper feeding channel to the print rubber roller 3. The linkage arm 7 is rotatably arranged in the bottom shell 2. The print head 51 and the push member 4 are respectively arranged on opposite sides of the rotation connection between the linkage arm 7 and the bottom shell 2. When the upper cover 1 rotates to lock the bottom shell 2, the toggle rod 11 pushes the push member 4 to rotate with the linkage arm 7, and the linkage arm 7 drives the print head 51 to rotate toward the print rubber roller 3 and abut against the print rubber roller 3.

[0029] When in use, the label paper 100 is placed in the paper feeding slot 21, one end of the label paper 100 passes between the printing rubber roller 3 and the printing head 51 along the paper feeding channel and extends to the paper outlet 9, the toggle rod 11 of the upper cover 1 is inserted into the positioning groove 22 to realize the positioning of the upper cover 1 and the bottom shell 2, and at the same time, the toggle rod 11 abuts against the pushing member 4 when inserted into the positioning groove 22. When the upper cover 1 rotates and locks with the bottom shell 2, the toggle rod 11 pushes the pushing member 4 to rotate, and the pushing member 4 pushes the linkage arm 7 to rotate, and the linkage arm 7 drives the print head 51 to abut against the printing rubber roller 3 to realize the compression of the label paper 100, thereby realizing the preparatory work before printing.

[0030] The label printer provided in the embodiment of the present invention can avoid friction between the print head 51 and the print roller 3 by driving the print head 51 to move toward the print roller 3, thereby avoiding deformation of the print head 51 and ensuring the printing effect, compared with the plug-in drive print head 51.

[0031] See also Figure 5 Furthermore, the distance (distance DF) from the push member 4 (the position of point F in the figure is the installation position of the push member 4) to the rotation connection between the linkage arm 7 and the bottom shell 2 (the position of point D in the figure) is greater than twice the distance (distance DE) from the print head 51 (the position of point E in the figure is the installation position of the print head 51) to the rotation connection between the linkage arm 7 and the bottom shell 2. In this way, the distance from the push member 4 to the rotation connection between the linkage arm 7 and the bottom shell 2 can be increased, thereby increasing the force arm to reduce the driving force of the toggle rod 11, so that the toggle rod 11 can drive the push member 4 with less effort;

[0032] Furthermore, the portion (DF portion) of the linkage arm 7 from the pusher 4 to the rotation connection with the bottom shell 2 is bent. In this way, the distance from the linkage arm 7 from the pusher 4 to the rotation connection with the bottom shell 2 can be increased within a limited space, and the force arm can be further increased to further reduce the resistance of the toggle rod 11 pushing the pusher 4, thereby improving the user experience.

[0033] Specifically, the bottom shell 2 is provided with a first mounting post 24, that is, the first mounting post 24 is provided on the intermediate body 2d described below, and the middle portion of the linkage arm 7 is rotatably connected to the first mounting post 24. This facilitates the fixing of the linkage arm 7.

[0034] See also Figure 3 Specifically, the bottom shell 2 includes an intermediate body 2d for fixing the core assembly, a first shell 2a disposed on the upper part of the intermediate body 2d and connected to the upper cover 1, a second shell 2b disposed on one side of the intermediate body 2d and connected to the first shell 2a, and a third shell 2c disposed on the opposite side of the second shell 2b of the intermediate body 2d and connected to the first shell 2a and the second shell 2b, wherein the paper placing slot 21, the positioning slot 22, and the linkage arm 7 are all disposed on the first shell 2a, and part of the paper outlet 9 is disposed at the connection between the first shell 2a and the second shell 2b or at the connection between the first shell 2a and the third shell 2c. The bottom shell 2 is provided with the intermediate body 2d, which is convenient for the stable installation of the core assembly in the bottom shell 2, and the first shell 2a, the second shell 2b, and the third shell 2c can be wrapped with the outside of the intermediate body 2d to accommodate the intermediate body 2d, and the first shell 2a, the second shell 2b, and the third shell 2c are divided into three parts and are respectively fixed to the intermediate body 2d, which is convenient for the installation of the core assembly and other components on the intermediate body 2d.

[0035] See also Figure 6 Specifically, the movement assembly also includes a driving assembly 52 for driving the label paper 100. The driving assembly 52 includes a driving member 521 and a gear group 522 driven by the driving member 521. The printing rubber roller 3 is provided with a transmission gear 31 linked to the gear group 522. The driving assembly 52 drives the transmission gear 31 through the driving gear pair, thereby driving the printing rubber roller 3 to rotate. When the print head 51 abuts against the printing rubber roller 3, the driving assembly 52 drives the printing rubber roller 3 to rotate, and the label paper 100 passing between the printing rubber roller 3 and the print head 51 can be transmitted.

[0036] It should be noted that the movement assembly is the core part of the printer, and in addition to the above-mentioned components, it also includes but is not limited to the control board.

[0037] In this embodiment, the driving member 521 may be, but is not limited to, a motor.

[0038] See also Figure 2 , 4Further, a plurality of first clamping parts 12 are provided at one edge of the side where the upper cover 1 is connected to the bottom shell 2, and the plurality of first clamping parts 12 are evenly spaced around the circumference, and a plurality of second clamping parts 23 corresponding to the first clamping parts 12 are provided at one side where the bottom shell 2 is connected to the upper cover 1, and when the upper cover 1 covers the bottom shell 2, the first clamping part 12 is located at one side of the second clamping part 23, and when the upper cover 1 rotates on the bottom shell 2, the first clamping part 12 is fixed with the second clamping part 23. The first clamping part 12 and the second clamping part 23 realize the fixing of the upper cover 1 and the bottom shell 2.

[0039] Furthermore, the toggle lever 11 is arranged on the same circumference as the first clamping portion 12, and correspondingly, the positioning groove 22 is also arranged on the same circumference as the second clamping portion 23, so that when the upper cover 1 is rotated to lock, the driving force of the toggle lever 11 can coincide with the rotational force, thereby reducing resistance, making the closing process smoother and improving the user's operating experience.

[0040] See also Figure 4 , 7 Specifically, a first protrusion 121 is provided on the side of the first clamping portion 12 facing inward, and a second protrusion 231 is provided on the side of the second clamping portion 23 facing outward. When the upper cover 1 rotates, the first protrusion 121 abuts against the bottom of the second protrusion 231, that is, the abutment between the first protrusion 121 and the second protrusion 231 realizes the limitation of the upper cover 1 and the bottom shell 2 in the vertical direction, preventing the upper cover 1 from separating from the bottom shell 2, thereby realizing the connection and fixation of the upper cover 1 and the bottom shell 2.

[0041] See also Figure 7 Further, a slope 232 is provided on one side of the second protrusion 231 close to the first protrusion 121. The slope 232 is provided to facilitate the first protrusion 121 to slide into the lower part of the second protrusion 231 to achieve abutment with the second protrusion 231.

[0042] See also Figure 7 Further, a protrusion 233 is provided on the surface where the second protrusion 231 abuts against the first protrusion 121. The protrusion can increase the abutment distance between the first protrusion 121 and the second protrusion 231, so that the first clamping part 12 and the second clamping part 23 cooperate more firmly, thereby improving the stable connection between the upper cover 1 and the bottom shell 2.

[0043] See also Figure 3Furthermore, the label printer further includes a buffer reset member 6, which is connected between the push member 4 and the linkage arm 7. When the toggle rod 11 cancels the force on the push member 4, the buffer reset member 6 provides a driving force for the push member 4 to return to its original position. That is, when the upper cover 1 is opened, the toggle rod 11 is pulled out of the positioning groove 22, the push member 4 loses the driving force of the toggle rod 11, and the buffer reset member 6 drives the push member 4 to return to its original position. At the same time, the buffer reset member 6 drives the linkage arm 7 to rotate, so that the print head 51 rotates away from the print rubber roller 3 to release the label paper 100. In addition, the buffer reset member 6 can also make the linkage arm 7 squeeze the buffer reset member 6 when the print head 51 abuts against the print rubber roller 3, so as to avoid the print head 51 from being deformed due to the hard contact with the print rubber roller 3 for a long time during the process of the upper cover 1 covering the bottom shell 2, thereby avoiding affecting the printing effect.

[0044] In this embodiment, the buffer reset member 6 may be, but is not limited to, a coil spring, and two ends of the coil spring are respectively connected to the push member 4 and the linkage arm 7 .

[0045] See also Figure 3 Specifically, the pusher 4 includes a main body 41 rotatably connected to the bottom shell 2, and a pusher 42 connected to one side of the main body 41, and the pusher 42 is in an arc-shaped structure. The pusher 42 is provided to facilitate the push of the pusher 4 by the toggle rod 11. The pusher 42 is provided on one side of the main body 41, which can save the pushing force of the toggle rod 11 on the pusher 4, thereby saving effort when the upper cover 1 rotates. The pusher 42 is in an arc-shaped structure, which can reduce the volume of the positioning groove 22 occupied by the pusher 4 on the one hand, and increase the rolling stroke of the toggle rod 11 on the pusher 42 on the other hand when the upper cover 1 rotates, so as to avoid the toggle rod 11 from being separated from the pusher 42 and losing the pushing effect on the pusher 4 when the upper cover 1 rotates.

[0046] See also Figure 2 Furthermore, a mounting groove 25 is provided on one side where the bottom shell 2 is connected to the upper cover 1, and a contact switch 8 is provided on the mounting groove 25. The contact switch 8 is used to connect with the control board of the movement assembly, and the contact switch 8 extends out of the mounting groove 25. When the upper cover 1 covers the bottom shell 2, the upper cover 1 presses the contact switch 8 to retract into the mounting groove 25. The contact switch 8 is provided so that when the upper cover 1 is covered, the contact switch 8 can detect whether the upper cover 1 is matched with the bottom cover, so that a signal that the upper cover 1 is installed in place can be sent to the control board, so that the control board can issue a command to control the printer to start.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A label printer, It is characterized in that include: An upper cover, the inner surface of which is provided with a toggle lever; The bottom shell is rotatably connected to the upper cover, a paper placement slot is provided on one side of the bottom shell connected to the upper cover, a paper outlet is provided between the bottom shell and the upper cover, a paper feeding channel is formed between the paper placement slot and the paper outlet, a printing rubber roller is provided on one side of the paper feeding channel, and a positioning slot for the toggle rod to be inserted is provided on the bottom shell; a push member is rotatably provided in the positioning slot, and when the upper cover covers the bottom shell, the toggle rod extends into the positioning slot and abuts against one side of the push member; A movement assembly is arranged in the bottom shell, and the movement assembly includes a print head, and the print head is movably arranged on the side of the paper feeding channel opposite to the print rubber roller; a linkage arm is rotatably arranged in the bottom shell, and the print head and the pushing member are respectively arranged on opposite sides of the rotation connection between the linkage arm and the bottom shell. When the upper cover rotates and locks the bottom shell, the toggle rod pushes the pushing member to rotate the linkage arm, and the linkage arm drives the print head to rotate toward the print rubber roller and abut against the print rubber roller. The movement assembly also includes a driving assembly for driving the label paper transmission, and the driving assembly drives the print rubber roller to rotate, and all the paper passing between the print rubber roller and the print head The label paper can be transmitted; the distance from the pushing member to the rotational connection between the linkage arm and the bottom shell is greater than twice the distance from the print head to the rotational connection between the linkage arm and the bottom shell; a plurality of first clamping parts are provided at an edge on one side where the upper cover is connected to the bottom shell, and the plurality of first clamping parts are evenly spaced around the circumference; a plurality of second clamping parts corresponding to the first clamping parts are provided on one side where the bottom shell is connected to the upper cover; when the upper cover covers the bottom shell, the first clamping part is located on one side of the second clamping part; when the upper cover rotates on the bottom shell, the first clamping part is fixed in cooperation with the second clamping part; the toggle rod is arranged on the same circumference as the first clamping part.

2. The label printer according to claim 1, It is characterized in that The linkage arm has a bent structure from the pusher to the rotation connection with the bottom shell.

3. The label printer according to claim 1, It is characterized in that A first protrusion is provided on the inner side of the first clamping portion, and a second protrusion is provided on the outer side of the second clamping portion. When the upper cover rotates, the first protrusion abuts against the bottom of the second protrusion.

4. The label printer according to claim 3, It is characterized in that A slope is provided on one side of the second protrusion close to the first protrusion.

5. The label printer according to claim 3, It is characterized in that A protrusion is provided on the surface of the second protrusion abutting against the first protrusion.

6. The label printer according to any one of claims 1 to 5, It is characterized in that The pushing member comprises a main body portion rotatably connected to the bottom shell and a pushing portion connected to one side of the main body portion, and the pushing portion is an arc-shaped structure.

7. The label printer according to claim 1, It is characterized in that The label printer further comprises a buffer reset member, which is connected between the pushing member and the linkage arm. When the toggle rod cancels the force on the pushing member, the buffer reset member provides a driving force for the pushing member to return to its original position.

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