Mounting structure of printing device and printer

Abstract

The utility model provides a mounting structure of a printing device, which is used for mounting a thermal printing head and comprises a fixing frame, a base plate and N springs, and N is larger than or equal to 2. P hooks and Q buckles are arranged on the base plate along any two opposite sides, wherein the number of P and the number of N are both larger than or equal to 2; the fixing frame is provided with a hanging groove matched with the hook and further provided with a clamping groove matched with the buckle. The spring is arranged between the fixing frame and the substrate, and the thermal printing head is arranged on the substrate; the utility model also provides a printer. According to the installation structure, the base plate and the fixing frame which are matched with each other are arranged, the base plate is installed on the fixing frame in the mode that the hanging grooves are matched with the hooks, and the clamping grooves are matched with the buckles, the hooks and the buckles can be arranged to be close to the middle position according to needs, and obvious deformation of the middle position of the base plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printer accessories, in particular to an installation structure of a printing device and a printer. Background Art

[0002] Thermal printers operate on a semiconductor heating element mounted on a print head. Once heated and in contact with thermal paper, the desired image is printed. This principle is similar to that of a thermal fax machine. The image is created by heating the film, triggering a chemical reaction. This chemical reaction occurs at a specific temperature, which is accelerated by high temperatures.

[0003] Most existing thermal print heads are first fixed to a base plate, and then the two ends of the base plate are fixed. However, most current base plates are made of stamped sheet metal. Therefore, the middle position away from the fixed end of the base plate is more susceptible to deformation due to the elastic force of the spring. Especially when printing A4 paper, the deformation is more obvious due to the excessive length of the base plate, which in turn affects the normal use of the thermal printer.

[0004] In view of this, the inventor specially designed a mounting structure of a printing device and a printer, which resulted in the present case. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a mounting structure for a printing device. By providing a base plate and a fixing frame that cooperate with each other, the base plate is mounted on the fixing frame by using a hanging slot to cooperate with a hook, and a clamping slot to cooperate with a buckle. Since multiple hooks and buckles can be provided and are positioned close to the middle as needed, significant deformation of the base plate in the middle is avoided, thus overcoming the disadvantages of the current base plate fixing method with both ends.

[0006] The utility model also provides a printer.

[0007] According to the utility model, a mounting structure of a printing device is provided for mounting a thermal print head, comprising a fixing frame, a base plate and a spring, wherein N springs are provided and N ≥ 2;

[0008] The substrate is provided with P hooks and Q buckles along any two opposite sides, wherein the number of P and the number of N are both greater than or equal to 2;

[0009] The fixing frame is provided with a hanging groove matched with the hook, and is also provided with a clamping groove matched with the buckle;

[0010] The spring is arranged between the fixing frame and the base plate, and the thermal print head is arranged on the base plate.

[0011] The mounting structure of the present invention is to install the substrate on the fixing frame by setting a base plate and a fixing frame that cooperate with each other, and to use a hanging groove to cooperate with a hook, and a card slot to cooperate with a buckle. Since a plurality of hooks and buckles can be provided, obvious deformation of the middle position of the substrate is avoided.

[0012] In some embodiments of the present invention, hooks and buckles are provided on both sides of the long side of the base plate, and correspondingly, hanging grooves and locking grooves are provided on both sides of the long side of the fixing frame.

[0013] In some embodiments of the present invention, the base plate further has a support plate for mounting the thermal print head, and the hooks and buckles are located on both sides of the long side of the support plate.

[0014] In some embodiments of the present invention, the hook is T-shaped.

[0015] In some embodiments of the present invention, the buckle includes a connecting portion connected to the support plate and a hook portion connected to the connecting portion, and the hook portion and the connecting portion form an angle α, which is an obtuse angle.

[0016] In some embodiments of the present invention, the angle α is 120-150°.

[0017] In some embodiments of the present invention, the fixing frame includes a main body, a first connecting plate and a second connecting plate arranged on both sides of the main body, the hanging slot is arranged on the first connecting plate, and the card slot is arranged on the second connecting plate.

[0018] In some embodiments of the present invention, a protrusion for spring sleeve is provided on the main body.

[0019] In some embodiments of the present invention, the spring is a conical spring, with a smaller end abutting against the fixing frame and a larger end abutting against the base plate.

[0020] According to the utility model, a printer is provided, which comprises a mounting structure. The mounting structure adopts the structure of a printing device mounting structure.

[0021] In some embodiments of the present invention, it further includes an upper cover, an upper bracket and a cutter;

[0022] The upper bracket is arranged in the upper cover and is used for installing the installation structure; the cutter is arranged on the upper cover.

[0023] In some embodiments of the present invention, the cutter is locked to the upper cover by two first bolts, the mounting structure is locked to the upper bracket by two second bolts, the upper bracket is locked to the upper cover by several third bolts, and the second connecting plate presses the cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] in:

[0026] Figure 1 It is a schematic diagram of the installation structure of the utility model;

[0027] Figure 2 It is an exploded view of the installation structure of the utility model;

[0028] Figure 3 It is a cross-sectional view of the installation structure of the utility model;

[0029] Figure 4 It is a structural diagram of the fixing frame of the utility model;

[0030] Figure 5 It is a structural diagram of the substrate of the utility model;

[0031] Figure 6 It is a partial schematic diagram of the printer of the utility model;

[0032] Figure 7 It is a partial exploded view of the printer of the utility model;

[0033] Figure 8 It is a partial schematic diagram of the printer of the utility model;

[0034] Figure 9 This utility model Figure 8 A partial enlarged view of .

[0035] Description of labels:

[0036] 001. Upper cover; 002. Upper bracket; 003. Thermal print head; 004. Cutter; 10. Fixing bracket; 11. Hanging slot; 12. Card slot; 101. Main body; 1011. Raised portion; 1012. Reinforced step; 1013. Mounting hole; 102. First connecting plate; 103. Second connecting plate; 20. Base plate; 21. Support plate; 22. Hook; 23. Buckle; 231. Connecting portion; 232. Hook portion; 30. Spring; 40. First bolt; 50. Second bolt; 60. Third bolt. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, 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 only used to explain the present invention and are not intended to limit the present invention. Example 1

[0038] See also Figures 1 to 5 , is a mounting structure of a printing device as embodiment 1 of the present utility model, used for mounting a thermal print head 003, including a fixing frame 10, a base plate 20 and a spring 30, wherein N springs 30 are provided, and N ≥ 2; the base plate 20 is provided with P hooks 22 and Q buckles 23 along any opposite sides, wherein the number P and the number N are both greater than or equal to 2; the fixing frame 10 is provided with a hanging groove 11 for cooperating with the hook 22, and also provided with a clamping groove 12 for cooperating with the buckle 23; the spring 30 is provided between the fixing frame 10 and the base plate 20, and the thermal print head 003 is provided on the base plate 20. The positions of the hooks 22 and the buckles 23 are set according to actual needs and can be set at equal intervals. In the present invention, four hooks 22 and four hanging slots 11 are each provided, and four buckles 23 and four slots 12 are each provided. Eight springs 30 can be provided. Under the action of more hooks 22 and buckles 23, eight springs 30 can provide sufficient elastic force, and there is no need to worry about the problem of large deformation. The springs 30 store elastic potential energy, and under the action of elastic potential energy, the hooks 22 are tightly hung on the hanging slots 11, and the buckles 23 are tightly hooked on the slots 12. The mounting structure of the present invention is to install the base plate 20 on the fixing frame 10 by setting a base plate 20 and a fixing frame 10 that cooperate with each other, and to use the hanging slots 11 to cooperate with the hooks 22, and the slots 12 to cooperate with the buckles 23. Since the number of hooks 22 and buckles 23 can be set in multiples and they are set close to the middle position as needed, obvious deformation of the middle position of the base plate 20 is avoided.

[0039] Please refer to the following for details: Figure 2 、 4 5. Hooks 22 and buckles 23 are provided on both sides of the long side of the base plate 20, and correspondingly, hanging grooves 11 and locking grooves 12 are provided on both sides of the long side of the fixing frame 10.

[0040] Please refer to the following for details: Figure 2 、 5The substrate 20 also has a support plate 21 for mounting the thermal print head 003, with a hook 22 and a buckle 23 located on both sides of the long side of the support plate 21. The support plate 21, the hook 22, and the buckle 23 are directly formed from sheet metal parts. The forming methods are all existing technologies and will not be described in detail. The hook 22 is T-shaped. Specifically, the sheet metal part can be stamped into a shape and then bent. The hook 22 can be set perpendicular to the support plate 21, and an acute angle is formed between the buckle 23 and the support plate 21, which facilitates better installation of the substrate 20 on the fixing frame 10. The buckle 23 includes a connecting portion 231 connected to the support plate 21 and a hook portion 232 connected to the connecting portion 231. The hook portion 232 forms an angle α with the connecting portion 231, and the angle α is an obtuse angle. The angle α can be set to 120-150°, which facilitates better installation of the substrate 20 while also achieving better fixation of the substrate 20.

[0041] Please refer to the following for details: Figure 2 、 4 The fixing frame 10 includes a main body 101, a first connecting plate 102 and a second connecting plate 103 arranged on both sides of the main body 101, a hanging groove 11 is arranged on the first connecting plate 102, and a card slot 12 is arranged on the second connecting plate 103. Among them, the main body 101, the first connecting plate 102 and the second connecting plate 103 are directly formed by sheet metal parts, and the first connecting plate 102 and the second connecting plate 103 are respectively located on both sides of the long side of the main body 101. The main body 101 is U-shaped. The first connecting plate 102 is provided with a hanging groove 11 from the outside to the inside to facilitate the installation of the hook 22. The card slot 12 is provided at the connection between the second connecting plate 103 and the main body 101, so that the buckle 23 can hook the card slot 12. A reinforcing step 1012 is also provided on the main body 101 to improve the pressure resistance of the main body 101. Specifically, it can be directly formed during stamping, and multiple steps can be arranged at equal intervals along a straight line.

[0042] Please refer to the following for details: Figure 2 、 3 4. A raised portion 1011 for the spring 30 to be mounted on the main body 101; the spring 30 is a conical spring 30, the smaller end of which abuts against the fixing frame 10, and the larger end abuts against the base plate 20; specifically, the smaller end of the conical spring 30 is mounted on the outside of the raised portion 1011.

[0043] The installation method of the installation structure of this embodiment is:

[0044] First, the small end sleeves of the multiple springs 30 are set on the raised portion 1011 to fix the springs 30. Then, the hook 22 of the base plate 20 is embedded in the hanging groove 11 from the side of the fixing frame 10. Then, the other side of the fixing frame 10 is pressed by external force, and the buckle 23 can be embedded in the card slot 12, realizing quick and convenient installation. Example 2

[0045] See also Figures 1 to 9 , a printer as embodiment 2 of the present invention, includes a mounting structure that adopts the structure of the mounting structure mentioned in embodiment 1. The printer also includes a top cover 001, an upper bracket 002, and a cutter 004; the upper bracket 002 is disposed within the top cover 001 and is used to mount the mounting structure; the cutter 004 is disposed on the top cover 001.

[0046] Please refer to the following for details: Figure 7 、 8 The cutter 004 is locked to the upper cover 001 by two first bolts 40, and the mounting structure is locked to the upper bracket 002 by two second bolts 50. Specifically, a mounting hole 1013 is directly stamped out on the main body 101, so that the second bolt 50 can pass through the mounting hole 1013 and be threadedly connected to the upper bracket 002; the upper bracket 002 is locked to the upper cover 001 by several third bolts 60, and the second connecting plate 103 presses the cutter 004.

[0047] Please refer to the following for details: Figure 9 The second connecting plate 103 can better press and support the cutter 004. Therefore, the second connecting plate 103 can press the cutter 004, so that the cutter 004 can be locked with only two first bolts 40. At the same time, it can better prevent the cutter 004 from deformation and improve the paper cutting effect of the cutter 004. Specifically, the cutter 004 includes an L-shaped mounting portion and a cutter 004 portion disposed on the mounting portion. A support platform for supporting the mounting portion is also provided on the inner side of the upper cover 001. The mounting portion is pressed against the support platform in conjunction with the second connecting plate 103. When installing the cutter 004, first tighten it with the two first bolts 40, then tighten the upper bracket 002 with the mounting structure with a plurality of third bolts 60. After tightening, the second connecting plate 103 can press the mounting portion.

[0048] To sum up, the installation structure of the present invention is to install the substrate on the fixing frame by setting a base plate and a fixing frame that cooperate with each other, and using the hanging slot to cooperate with the hook, and the card slot to cooperate with the buckle. Since the number of hooks and buckles can be set to multiple, and they are set close to the middle position as needed, obvious deformation of the middle position of the substrate is avoided. At the same time, the installation is fast and convenient, the structure is reliable, and the stability is good. When the printer adopts the installation structure, the concentration of the characters is more uniform when printing A4 paper.

[0049] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A mounting structure for a printing device, for mounting a thermal print head, characterized in that: It includes a fixing frame, a base plate and a spring, wherein N springs are provided and N ≥ 2; The substrate is provided with P hooks and Q buckles along any two opposite sides, wherein the number of P and the number of N are both greater than or equal to 2; The fixing frame is provided with a hanging groove matched with the hook, and is also provided with a clamping groove matched with the buckle; The spring is arranged between the fixing frame and the base plate, and the thermal print head is arranged on the base plate.

2. The installation structure of a printing device according to claim 1, characterized in that: The base plate is provided with hooks and buckles along both sides of the long side, and the corresponding fixing frame is provided with hanging grooves and clamping grooves along both sides of the long side.

3. The installation structure of a printing device according to claim 1, characterized in that: The base plate also has a support plate for mounting the thermal print head, and the hooks and buckles are located on both sides of the long side of the support plate.

4. The installation structure of a printing device according to claim 3, characterized in that: The buckle includes a connecting portion connected to the support plate and a hook portion connected to the connecting portion, wherein the hook portion and the connecting portion form an angle α, which is an obtuse angle.

5. The installation structure of a printing device according to claim 1, characterized in that: The fixing frame includes a main body, a first connecting plate and a second connecting plate arranged on both sides of the main body, the hanging slot is arranged on the first connecting plate, and the clamping slot is arranged on the second connecting plate.

6. The installation structure of a printing device according to claim 5, characterized in that: The main body is provided with a raised portion for spring sleeve installation.

7. The installation structure of a printing device according to claim 1, characterized in that: The spring is a conical spring, a smaller end of which abuts against the fixing frame, and a larger end of which abuts against the base plate.

8. A printer, characterized in that: A mounting structure for a printing device according to any one of claims 1 to 7 is adopted.

9. A printer according to claim 8, characterized in that: It also includes an upper cover, an upper bracket and a cutter; The upper bracket is arranged in the upper cover and is used for installing the installation structure; the cutter is arranged on the upper cover.

10. A printer according to claim 9, characterized in that: The cutter is locked on the upper cover by two first bolts, the mounting structure is locked on the upper bracket by two second bolts, the upper bracket is locked on the upper cover by a plurality of third bolts, and the second connecting plate presses the cutter.

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