Printing head mechanism for label printer

Abstract

The utility model discloses a printing head mechanism for a label printer. The printing head mechanism comprises a first bracket, a second bracket, an elastic piece and a heating element, the first support is fixedly arranged in a machine shell of the label printer. The second support is arranged on the first support, and the second support can slide relative to the first support; the elastic piece is arranged between the first support and the second support, one end of the elastic piece abuts against the first support, and the other end of the elastic piece abuts against the second support; the heating element is arranged on the face, away from the first support, of the second support. The printing head mechanism can be automatically adapted to the thicknesses of consumables of various specifications, the printing effect is not affected, and the abutting force of the heating element to the consumables can be automatically adapted according to the thicknesses of the consumables.

Description

TECHNICAL FIELD

[0001] The utility model relates to a label printer technical field especially, it is a kind of print head mechanism for label printer. BACKGROUND

[0002] Thermal printer is a kind of equipment based on thermal paper to print.The working principle is that semiconductor heating element is installed on print head, and the required pattern can be printed after print head heating and contacting thermal printing paper.Therefore, during printing, heating element in printer needs to contact consumables at all times, and consumables will be thinned after consumption, at this time, heating element needs to continue to close to consumables.

[0003] However, the print head mechanism in label printer on the existing market cannot be compatible with over-thick specifications of thermal consumables, sometimes need to be manually adjusted up and down according to structure, it is very inconvenient, and if the uneven contact of each area of heating element and consumables, it will also affect printing effect and reduce printing quality. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiencies of prior art, the purpose of the utility model is to provide a kind of print head mechanism for label printer, to solve the technical problems that print head mechanism in prior art cannot be compatible with over-thick specifications of thermal consumables.

[0005] The utility model adopts the following technical scheme implementation: a kind of print head mechanism for label printer, including first support, second support, elastic member and heating element;

[0006] The first support is fixedly arranged in the shell of label printer;

[0007] The second support is arranged on the first support, and the second support is slidably arranged relative to the first support;

[0008] The elastic member is arranged between the first support and the second support, one end of the elastic member is in contact with the first support, and the other end of the elastic member is in contact with the second support;

[0009] The heating element is arranged on the side of the second support away from the first support.

[0010] In a possible implementation, the first support and the second support are both concave, the first support has first side arms on both sides, the second support has second side arms on both sides, part of the second support extends into the first support, the second side arms are located inside the first side arms, and the second side arms are slidably connected with the first side arms.

[0011] In a possible implementation, the first side arm is provided with a through hole, the second side arm is provided with a long hole corresponding to the through hole, and the locking member passes through the through hole and the long hole.

[0012] In a possible implementation, the number of the locking members is multiple, and the multiple locking members are uniformly arranged along the length direction of the first support.

[0013] In a possible implementation, the first support is provided with a first positioning protrusion, the second support is provided with a second positioning protrusion, one end of the elastic member is sleeved on the first positioning protrusion, and the other end of the elastic member is sleeved on the second positioning protrusion.

[0014] In a possible implementation, the number of the elastic members is multiple, and the multiple elastic members are uniformly arranged along the length direction of the first support.

[0015] In a possible implementation, the first support is provided with a first opening, the second support is provided with a second opening, and the second opening corresponds to the first opening.

[0016] In a possible implementation, the first support is provided with a first opening, the second support is provided with a second opening, and the second opening corresponds to the first opening.

[0017] In a possible implementation, the first support is provided with a first opening, the second support is provided with a second opening, and the second opening corresponds to the first opening.

[0018] Compared with the prior art, the beneficial effects of the utility model lie in that the first support and the second support are in sliding cooperation, the elastic member is located in the first support and the second support for controlling the force of the second support, so that the second support can be automatically adjusted, the heating element mounted on the second support is finally attached to the consumable, the printing head mechanism of the utility model can automatically adapt to the thickness of multiple specifications of consumables, the printing effect is not affected, and the resistance of the heating element to the consumable can be automatically adapted according to the thickness of the consumable. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the printing head mechanism of the utility model for a label printer;

[0020] Figure 2 It is an exploded schematic view of the printing head mechanism of the utility model for a label printer;

[0021] Figure 3 It is a structural schematic view of the second support in the printing head mechanism of the utility model for a label printer.

[0022] In the drawings:

[0023] 1, first support; 11, first side arm; 12, through hole; 13, first positioning protrusion; 14, first opening; 15, mounting portion; 16, mounting hole;

[0024] 2, second support; 21, second side arm; 22, long hole; 23, second positioning protrusion; 24, second opening;

[0025] 3, elastic member;

[0026] 4, heating element;

[0027] 5, locking member. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0030] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection claimed by the present application.

[0031] As Figures 1-3The utility model discloses a print head mechanism for label printer, including first support 1, second support 2, elastic member 3 and heating element 4, first support 1 is fixedly arranged in the casing of label printer, second support 2 is arranged on first support 1, and second support 2 is slidably arranged relative to first support 1, elastic member 3 is arranged between first support 1 and second support 2, one end of elastic member 3 is in contact with first support 1, and the other end of elastic member 3 is in contact with second support 2, heating element 4 is arranged on the side of second support 2 away from first support 1, it is explained that, elastic member 3 is preferably spring, heating element 4 can be fixed on second support 2 by welding or bonding, and second support 2 is slidably arranged relative to first support 1, can make second support 2 close to or away from first support 1, specifically, second support 2 can be close to first support 1 under the action of external force, second support 2 can be away from first support 1 under the action of the elastic force of elastic member 3, and heating element 4 moves along with second support 2, when second support 2 and first support 1 are in the state of closest, the elastic force of elastic member 3 to second support 2 is maximum, along with second support 2 away from first support 1, the elastic force of elastic member 3 to second support 2 gradually reduces, therefore, the force of heating element 4 to different thickness consumables is different, to realize the print head mechanism of the utility model can automatically adapt the thickness of various specifications consumables, and the printing effect is not influenced.

[0032] The utility model has the advantages that by making first support 1 and second support 2 slide and cooperate, elastic member 3 is located in the middle for controlling the force of second support 2, so that second support 2 can be automatically adjusted, thereby making heating element 4 installed on second support 2 finally end in consumable adhesion, so that the print head mechanism can automatically adapt the thickness of various specifications consumables, and the printing effect is not influenced, and the contact force of heating element 4 to consumable can be automatically adapted according to the thickness of consumable.

[0033] Please refer to Figure 2In a possible implementation, the first support 1 and the second support 2 are both concave, the first support 1 is provided with first side arms 11 on both sides, the second support 2 is provided with second side arms 21 on both sides, the second support 2 extends into the first support 1, the second side arms 21 are located inside the first side arms 11, and the second side arms 21 are in sliding fit with the first side arms 11. It should be noted that the first side arms 11 are formed by bending the bottom plate of the first support 1, the second side arms 21 are formed by bending the bottom plate of the second support 2, the first side arms 11 are in sliding fit with the second side arms 21 to achieve sliding connection of the first support 1 and the second support 2, the first side arms 11 can limit the second support 2, which is beneficial to improve the stability of the connection of the first support 1 and the second support 2, and the second support 2 is in clearance fit with the first support 1, so that the second support 2 can smoothly slide under the elastic force of the elastic member 3.

[0034] Please refer to Figure 1 and Figure 2 In a possible implementation, the first support 1 and the second support 2 are both concave, the first support 1 is provided with first side arms 11 on both sides, the second support 2 is provided with second side arms 21 on both sides, the second support 2 extends into the first support 1, the second side arms 21 are located inside the first side arms 11, and the second side arms 21 are in sliding fit with the first side arms 11. It should be noted that the first side arms 11 are formed by bending the bottom plate of the first support 1, the second side arms 21 are formed by bending the bottom plate of the second support 2, the first side arms 11 are in sliding fit with the second side arms 21 to achieve sliding connection of the first support 1 and the second support 2, the first side arms 11 can limit the second support 2, which is beneficial to improve the stability of the connection of the first support 1 and the second support 2, and the second support 2 is in clearance fit with the first support 1, so that the second support 2 can smoothly slide under the elastic force of the elastic member 3.

[0035] Please refer to Figure 2 In a possible implementation, the number of the locking members 5 is multiple, and the multiple locking members 5 are uniformly arranged along the length direction of the first support 1. It is easy to understand that the first support 1 and the second support 2 are connected through the locking members 5, and multiple locking members 5 are arranged to improve the stability of the connection of the first support 1 and the second support 2. Specifically, the number of the locking members 5 is three, and the locking members 5 are arranged at both ends and the middle of the first support 1.

[0036] Please refer to Figure 2 and Figure 3In a possible implementation, the first support 1 is provided with a first positioning protrusion 13, the second support 2 is provided with a second positioning protrusion 23, one end of the elastic member 3 is sleeved on the first positioning protrusion 13, and the other end of the elastic member 3 is sleeved on the second positioning protrusion 23. It should be noted that the first positioning protrusion 13 and the second positioning protrusion 23 can position and limit the elastic member 3. When installing the spring, the two ends of the spring are only needed to be sleeved on the first positioning protrusion 13 and the second positioning protrusion 23, which is very convenient, and can also avoid accidental deviation of the spring, thereby improving the stability of the spring.

[0037] Please refer to Figure 2 In a possible implementation, the number of the elastic members 3 is multiple, and the multiple elastic members 3 are uniformly arranged along the length direction of the first support 1. It should be noted that multiple elastic members 3 are arranged to improve the driving force of the second support 2 and ensure the resistance of the heating element 4 to the consumable. The multiple elastic members 3 are uniformly arranged to improve the stress uniformity of the second support 2, and the number of the elastic members 3 can be freely set according to actual needs.

[0038] Please refer to Figure 2 and Figure 3 In a possible implementation, the first support 1 is provided with a first opening 14, the second support 2 is provided with a second opening 24, and the second opening 24 corresponds to the first opening 14. It should be noted that the first opening 14 is arranged near the middle of the first side arm 11, the second opening 24 is arranged near the middle of the second side arm 21, and the first opening 14 overlaps the second opening 24. The first opening 14 and the second opening 24 can facilitate the user to separate the first support 1 and the second support 2 when disassembling.

[0039] Please refer to Figure 2 In a possible implementation, one side of the first support 1 away from the second support 2 is provided with a mounting portion 15. It should be noted that the mounting portion 15 is formed by extending outwardly from the bottom plate of the first support 1. The first support 1 can be fixed to the printer through the mounting portion 15. Specifically, a bolt can be used to pass through the mounting portion 15 to connect with the printer, and the number of the mounting portions 15 is multiple and symmetrically arranged on both sides of the first support 1.

[0040] Please refer to Figure 2 In a possible implementation, the first support 1 is provided with mounting holes 16 at both ends. It should be noted that a bolt can be used to pass through the mounting holes 16 to connect with the printer, so that the first support 1 can be installed on the printer. The user can fix the first support 1 through the mounting portion 15 or the mounting holes 16, or use them simultaneously to improve the stability of the installation of the first support 1.

[0041] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art on the basis of the present application belong to the scope of protection of the present application.

Claims

1. A printhead mechanism for a label printer, characterized by, The first support, the second support, the elastic member and the heating element are included. The first support is fixedly arranged in a shell of a label printer. The second support is arranged on the first support and is slidably arranged relative to the first support. The elastic member is arranged between the first support and the second support, one end of the elastic member abuts against the first support, and the other end of the elastic member abuts against the second support. The heating element is arranged on a side of the second support away from the first support.

2. The printhead mechanism for a label printer of claim 1, wherein, The first support and the second support are both concave, the first support has first side arms on both sides, the second support has second side arms on both sides, part of the second support extends into the first support, the second side arms are located inside the first side arms, and the second side arms are slidably connected with the first side arms.

3. The printhead mechanism for a label printer of claim 2, wherein, The first side arms are provided with through holes, the second side arms are provided with long holes, the long holes correspond to the through holes, and the locking members pass through the through holes and the long holes.

4. The printhead mechanism for a label printer of claim 3, wherein, The number of the locking members is multiple, and the multiple locking members are uniformly arranged along the length direction of the first support.

5. The printhead mechanism for a label printer of claim 1, wherein, The first support is provided with a first positioning protrusion, the second support is provided with a second positioning protrusion, one end of the elastic member is sleeved on the first positioning protrusion, and the other end of the elastic member is sleeved on the second positioning protrusion.

6. The printhead mechanism for a label printer of claim 1, wherein, The number of the elastic members is multiple, and the multiple elastic members are uniformly arranged along the length direction of the first support.

7. The printhead mechanism for a label printer of claim 1, wherein, The first support is provided with a first opening, the second support is provided with a second opening, and the second opening corresponds to the first opening.

8. The printhead mechanism for a label printer of claim 1, wherein, A side of the first support away from the second support is provided with a mounting portion.

9. The printhead mechanism for a label printer of claim 1, wherein, Both ends of the first support are provided with mounting holes.

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