A pull-out embedded thermal printer

Abstract

The present invention provides a pull-out embedded thermal printer, comprising an inner shell, a pull-out assembly, a printing assembly and a paper bin assembly, wherein a guide rail is arranged in the inner shell, the pull-out assembly comprises a panel and a slide plate, the panel covers an opening, a paper outlet is arranged through the panel, the slide plate is located in a receiving cavity and is fixedly connected to the panel, the slide plate cooperates with the guide rail, and the slide plate can move relative to the guide rail along the extension direction of the guide rail, the printing assembly comprises a printing support, a rubber roller, a driving motor and a thermal film, the rubber roller, the driving motor and the thermal film are all arranged on the printing support, the printing support is arranged on the slide plate, the driving motor drives the rubber roller to rotate, the rubber roller and the thermal film are opposite to each other and form a paper feeding channel, the paper bin assembly comprises a paper bin support arranged on the slide plate, and the paper feeding channel is connected between the paper outlet and the paper bin support. The pull-out assembly can be used to pull out the printing assembly and the paper bin assembly as a whole, and the printing paper can be conveniently replaced on the paper bin support through a large operating space.

Description

Technical Field

[0001] The invention relates to the field of thermal printing, and in particular to a pull-out embedded thermal printer. Background Art

[0002] In today's production activities, banks' ATMs, ticket machines, number machines, sales terminals and other places all use thermal printing equipment to print transaction receipts, tickets or bills. Existing thermal printing equipment generally includes a housing and an embedded movement component, the embedded movement component includes a separation component and a machine base, a paper feeding channel is formed between the separation component and the machine base, the thermal sheet is arranged on the separation component, the rubber roller is arranged on the machine base, the thermal sheet abuts on the rubber roller, and the thermal printing paper presents the printed content after passing through the thermal sheet.

[0003] However, the embedded thermal printer is embedded in the above-mentioned printing device. When replacing the printing paper roll, it is necessary to open the paper bin and separate the separator and the base at the same time. After replacement, the cover body is closed, and then the separator is connected to the base again. After long-term use, it is not conducive to the matching stability between the separator and the base, and the method of rotating to open the cover body is not conducive to convenient and accurate replacement of the paper roll. Summary of the invention

[0004] The purpose of the present invention is to provide an embedded thermal printer that can be opened and pulled out to replace printing paper.

[0005] In order to achieve the purpose of the present invention, the present invention provides a pull-out embedded thermal printer, including an inner shell, a pull-out component, a printing component and a paper bin component, the inner shell forms a accommodating cavity, the accommodating cavity is provided with an opening outward, a guide rail is provided in the inner shell, the pull-out component includes a panel and a slide plate, the panel covers the opening, a paper outlet is provided through the panel, the slide plate is located in the accommodating cavity and is fixedly connected to the panel, the slide plate cooperates with the guide rail, the slide plate can move relative to the guide rail along the extension direction of the guide rail, the printing component includes a printing bracket, a rubber roller, a driving motor and a thermal film, the rubber roller, the driving motor and the thermal film are all arranged on the printing bracket, the printing bracket is arranged on the slide plate, the driving motor drives the rubber roller to rotate, the rubber roller and the thermal film are opposite to each other and form a paper feeding channel, the paper bin component includes a paper bin bracket arranged on the slide plate, and the paper feeding channel is connected between the paper outlet and the paper bin bracket.

[0006] It can be seen from the above scheme that through the cooperation of the guide rail and the slide plate, the pull-out assembly is pulled out from the inner shell in a pull-out manner, and then the printing assembly and the paper bin assembly are pulled out as a whole. Through the larger operating space, the printing paper can be replaced on the paper bin bracket. When replacing, the paper head can be inserted into the paper feeding channel between the rubber roller and the thermal film, thereby improving the cooperation stability between the rubber roller and the thermal film, thereby improving the overall printing quality.

[0007] A further solution is that the embedded thermal printer also includes a main control circuit board, which is arranged in the accommodating cavity and fixedly connected to the inner shell, and the main control circuit board is connected to the drive motor and the thermal sheet through connecting wires.

[0008] As can be seen from the above, by separating the main control circuit board from the printing component and the slide board, when the pull-out component is pulled out, the main control circuit board does not move with it, and the connection can be achieved through the connecting wire of the reserved length, thereby improving the connection stability.

[0009] A further solution is that the main control circuit board is arranged on the inner end surface of the side wall of the inner shell, and the guide rail is arranged on the bottom surface of the inner shell.

[0010] As can be seen from the above, by arranging the main control circuit board on the side, more placement space is reserved for the printing paper roll, which can accommodate a larger printing paper roll and increase the printing quantity.

[0011] A further solution is that the paper bin bracket is provided with a through hole on the side wall facing the main control circuit board, and the connecting wire passes through the through hole.

[0012] As can be seen from the above, by arranging the perforations nearby, the expansion and contraction of the connecting wire can be reduced, thereby improving the connection stability.

[0013] A further solution is that the paper bin assembly also includes a support shaft, the paper bin bracket is provided with a paper bin slot, the paper bin bracket is provided with support arms on both sides of the paper bin slot, and the support shaft is arranged between the two support arms.

[0014] As can be seen from the above, the paper roll can be easily replaced and installed through the support shaft.

[0015] A further solution is that a paper detection sensor is provided on the printing support, and the detection sensor is located between the rubber roller and the paper bin support.

[0016] As can be seen from the above, by setting the paper detection sensor, when it is sensed that the paper head extends into the paper feeding channel, the drive motor and the rotating rubber roller are started, thereby realizing automatic paper suction and facilitating the replacement of printing paper.

[0017] A further solution is that the printing bracket includes a lower base and an upper base, the rubber roller and the driving motor are arranged on the lower base, the thermal film is arranged on the upper base, and the upper base is arranged on the lower base, and a paper feeding channel is formed between the lower base and the upper base.

[0018] A further solution is that the upper base is provided with mounting columns on opposite sides of the thermal film, and the lower base is provided with mounting grooves on opposite sides of the rubber roller, and the mounting columns are located in the mounting grooves; the printing component also includes a locking component, the locking component includes a locking member, an elastic member and an unlocking member, the locking member and the unlocking member are respectively rotatably arranged on the lower base, the locking member is provided with a locking portion at the mounting groove, the locking portion is engaged with the mounting column, the elastic member elastically abuts between the locking member and the lower base, the unlocking member is provided with a pressing portion, the unlocking member is connected to the locking member and can drive the locking member to rotate.

[0019] A further solution is that the locking assembly also includes a connecting shaft and a connecting piece, the locking piece is provided with two locking arms, a locking part is located on one locking arm, the connecting shaft passes through the side wall of the lower base, the two locking arms and the connecting piece and is drivingly connected to the two locking arms and the connecting piece, a driving hole is provided on the locking arm, a driving column is provided on the connecting piece, the driving column is located in the driving hole, and the unlocking piece is connected to the connecting piece and can drive the connecting piece to rotate.

[0020] As can be seen from the above, in case of paper jam or wiping the thermal film, the locking member can be unlocked by rotating the unlocking member arranged on the lower base, thereby releasing the separation of the mounting column and the upper base. The unlocking member arranged on the lower base is easy to operate, and the positions of the upper base and the lower base after the snap-fit ​​installation are stably coordinated, which is beneficial to improving printing stability.

[0021] A further solution is that the printing component also includes a guide bracket, the guide bracket is located between the paper outlet and the rubber roller, and the guide bracket is provided with an inclined guide surface.

[0022] As can be seen from the above, in order to match the position of the paper outlet, the guide surface is provided so that the printing paper can be smoothly guided to the paper outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an embodiment of an embedded thermal printer of the present invention.

[0024] Figure 2 It is a structural diagram of the embedded thermal printer embodiment of the present invention after the drawer assembly is pulled out.

[0025] Figure 3 It is a structural diagram of the embedded thermal printer embodiment of the present invention at another viewing angle after the drawer assembly is pulled out.

[0026] Figure 4 It is a structural diagram of the inner shell and the main control circuit board in the embodiment of the embedded thermal printer of the present invention.

[0027] Figure 5 It is a structural diagram of a pull-out component, a printing component and a paper bin component in an embodiment of an embedded thermal printer of the present invention.

[0028] Figure 6 This is an exploded view of the pull-out assembly, printing assembly and paper bin assembly in the embodiment of the embedded thermal printer of the present invention.

[0029] Figure 7 It is an exploded view of the printing assembly in the embodiment of the embedded thermal printer of the present invention.

[0030] Figure 8 It is a cross-sectional view of an embodiment of an embedded thermal printer of the present invention.

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0032] Reference Figures 1 to 4 The embedded thermal printer is used to be embedded and installed in commercial equipment such as automatic teller machines, ticket machines, number machines, sales terminals, and vending terminals. The embedded thermal printer includes an inner shell 11, a pull-out component, a printing component 2, a main control circuit board 13, and a paper bin component 3. The inner shell 11 is square in shape, and has three side walls, a top wall, and a bottom surface, and then forms a accommodating cavity 111. The accommodating cavity 111 is provided with an opening outwardly. A bottom plate 14 is provided on the bottom surface of the inner shell 11, and guide rails 141 are provided on both horizontal sides of the bottom plate 14. The guide rails 141 are provided with limit members 142 at the opening.

[0033] The main control circuit board 13 is provided with a control circuit. The main control circuit board 13 is arranged in the accommodating cavity 111 and is fixedly connected to the inner shell 11. Specifically, the main control circuit board 13 is arranged on the inner end surface of the side wall of the inner shell 11. The main control circuit board 13 has a plurality of interfaces 131. The plurality of interfaces 131 are located on the side wall on the rear side. The main control circuit board 13 is located above the guide rail 141.

[0034] Reference Figures 5 to 8 , combined with Figure 2 and Figure 3 The pull-out assembly includes a panel 12 and a slide plate 41. The panel 12 is vertically connected to the slide plate 41. The panel 12 covers the opening. A paper outlet 121 is provided through the panel 12. A cutter 122 is provided at the paper outlet 121. A receiving platform 123 is extended outward from the paper outlet 121.

[0035] The slide plate 41 is provided with sliding parts 411 on both horizontal sides. The sliding parts 411 can adopt commonly used sliding connection components such as pulleys and ball bearings. The slide plate 41 is located in the accommodating cavity 111 and is fixedly connected to the panel 12. The sliding part 411 of the slide plate 41 cooperates with the guide rail 141, and the slide plate 41 can move relative to the guide rail 141 along the extension direction of the guide rail 141.

[0036] The printing assembly 2 includes a printing bracket, a rubber roller 24, a driving motor and a thermal film 22. The printing bracket includes a lower base 23 and an upper base 21. The lower base 23 is arranged on the slide plate 41, and the upper base 21 is arranged on the lower base 23. The rubber roller 24 and the driving motor (not shown) are arranged on the lower base 23. The driving motor drives the rubber roller 24 to rotate through the transmission of the gear set. The lower base 23 is provided with four mounting grooves 231 on the axially opposite sides of the rubber roller 24. Two mounting grooves 231 are located on the horizontal side, and the mounting grooves 231 are open upward.

[0037] The thermal sheet 22 is arranged on the upper base 21 , and the upper base 21 is provided with four mounting posts 211 on opposite sides of the thermal sheet 22 , and two mounting posts 211 are located on the horizontal side. A thermal drive plate 212 is arranged on the upper part of the upper base 21 , and the thermal drive plate 212 is drivingly connected to the thermal sheet 22 .

[0038] The printing assembly also includes a locking assembly, which includes a locking member 28, an elastic member (not shown), an unlocking member 26, a connecting shaft 29 and a connecting member 27. The locking member 28 includes a connecting portion 281 located in the middle, and locking arms 282 connected to both sides of the connecting portion 281. One locking arm 282 is provided with two locking portions 283, and the locking portion 283 extends into the mounting groove 231. The connecting piece 27 is provided with a driving hole 271, and the connecting piece 27 is provided with a matching portion 272 and a driving column 273 on the periphery of the driving hole 271. The matching portion 272 is provided in the form of a convex block, and a driving hole 284 is provided on the locking arm 282 on one side. The connecting shaft 29 passes through the through hole 232 of the side wall of the lower base 23, the two locking arms 282 and the driving hole 271 of the connecting piece 27, and is drivingly connected with the two locking arms 282 and the connecting piece 27. The connecting shaft 29 drives the rotation of the locking arms 282 and the connecting piece 27 by providing a driving plane on the outer wall. The driving column 273 passes through the slide groove 233 of the side wall of the lower base 23 and is inserted into the driving hole 284.

[0039] The locking member 28 and the unlocking member 26 are rotatably arranged on the lower base 23, respectively. The unlocking member 26 is provided with a pressing portion 261 and a driving portion 262 on the outer periphery. The driving portion 262 is provided in a groove portion. The driving portion 262 is connected and matched with the matching portion 272. As the pressing portion 261 is pressed, the unlocking member 26 is driven to rotate, and then the connecting member 27 is driven to rotate, and then the connecting shaft 29 and the locking member 28 are driven to rotate. Since the mounting column 211 is located in the mounting groove 231, the elastic member elastically abuts between the locking member 28 and the lower base 23. Therefore, under the action of the elastic member, the locking portion 283 is engaged with the mounting column 211, and then the mounting column 211 is stably installed in the mounting groove 231. As the locking member 28 and the locking portion 283 are separated and moved, the corresponding unlocking can be achieved, so that the mounting column 211 can be separated from the mounting groove 231. In addition, the lower base 23 is provided with a paper detection sensor 251 and a paper clamp 252. The paper detection sensor 251 can be an infrared sensor. The detection sensor is located between the rubber roller 24 and the paper bin bracket 31. The position of the printing paper can be detected by the paper detection sensor 251, and then automatic paper suction and feeding can be realized, and the printing paper can be positioned by the paper clamp 252.

[0040] The paper bin assembly 3 includes a paper bin bracket 31 and a support shaft 32 arranged on the slide plate 41. The paper bin bracket 31 is provided with a perforation 311 on the side wall facing the main control circuit board 13. The paper bin bracket 31 is provided with a paper bin slot 313. The paper bin bracket 31 is provided with support arms 312 on both sides of the paper bin slot 313. The support shaft 32 is arranged between the two support arms 312. The support shaft 32 passes through the printing paper roll 33 and supports the printing paper roll 33 to be installed on the paper bin bracket 31. A guide bracket 314 is also arranged between the support arms 312, and the guide bracket 314 has a guide arc surface. The panel 12 is connected to the paper bin bracket 31 through the connecting member 124, thereby improving the installation stability of the panel 21.

[0041] After the lower base 23 and the upper base 21 are matched, a paper feeding channel is formed between the lower base 23 and the upper base 21, and the rubber roller 24 and the thermal film 22 also form a paper feeding channel, and the paper feeding channel is connected in the front-to-back direction. The main control circuit board 13 is connected to the drive motor and the thermal drive board 212 through the connecting wire, and the connecting wire passes through the perforation 311 and is connected to the main control circuit board 13. Therefore, the printing paper 331 of the printing paper roll 33 passes through the guide bracket 314, the paper feeding channel, the rubber roller and the thermal film, and is output from the paper outlet 121 after printing and imaging. In addition, a guide bracket 15 is also provided on the lower base, and the guide bracket 15 is located between the paper outlet and the rubber roller 24. The guide bracket 15 is provided with an inclined guide surface 151. Since the position of the paper outlet 121 is higher than the position of the rubber roller 24, the guide surface 151 is inclined upward.

[0042] When replacing or installing the printer, the pull-out assembly is pulled out of the inner shell through the cooperation of the guide rail and the slide plate, and then the printing assembly and the paper bin assembly are pulled out as a whole. Through the larger operating space, the printing paper can be replaced on the paper bin bracket. When replacing, the paper head can be inserted into the paper feeding channel between the rubber roller and the thermal film, thereby improving the cooperation stability between the rubber roller and the thermal film, thereby improving the overall printing quality.

Claims

1. A pull-out embedded thermal printer, characterized in that: include: An inner shell, wherein the inner shell is formed with a receiving cavity, the receiving cavity is provided with an opening outward, and a guide rail is provided inside the inner shell; A pull-out assembly, the pull-out assembly comprising a panel and a slide plate, the panel covers the opening, the panel is provided with a paper outlet, the slide plate is located in the accommodating cavity and is fixedly connected to the panel, the slide plate cooperates with the guide rail, and the slide plate can move relative to the guide rail along the extension direction of the guide rail; A printing assembly, the printing assembly comprising a printing support, a rubber roller, a driving motor and a thermal sheet, the rubber roller, the driving motor and the thermal sheet are all arranged on the printing support, the printing support is arranged on the slide plate, the driving motor drives the rubber roller to rotate, the rubber roller and the thermal sheet are opposite to each other and form a paper feeding channel; A paper bin assembly, the paper bin assembly comprising a paper bin support arranged on the slide plate, the paper feeding channel being connected between the paper outlet and the paper bin support; The printing support comprises a lower base and an upper base, the rubber roller and the driving motor are arranged on the lower base, the thermal sheet is arranged on the upper base, the upper base is arranged on the lower base, and the paper feeding channel is formed between the lower base and the upper base; The upper base is provided with mounting posts on two opposite sides of the thermal sheet, and the lower base is provided with mounting grooves on two opposite sides of the rubber roller, and the mounting posts are located in the mounting grooves; The printing assembly further includes a lock assembly, which includes a lock member, an elastic member and an unlocking member, wherein the lock member and the unlocking member are rotatably arranged on the lower base, respectively, the lock member is provided with a lock portion at the mounting groove, the lock portion is engaged with the mounting column, the elastic member is elastically abutted between the lock member and the lower base, the unlocking member is provided with a pressing portion, and the unlocking member is connected to the lock member and can drive the lock member to rotate; The locking assembly also includes a connecting shaft and a connecting piece. The locking piece is provided with two locking arms, and a locking portion is located on one of the locking arms. The connecting shaft passes through the side wall of the lower base, the two locking arms and the connecting piece and is drivingly connected to the two locking arms and the connecting piece. A driving hole is provided on the locking arm, and a driving column is provided on the connecting piece. The driving column is located in the driving hole. The unlocking piece is connected to the connecting piece and can drive the connecting piece to rotate.

2. The embedded thermal printer according to claim 1, characterized in that: The embedded thermal printer further comprises a main control circuit board, which is disposed in the accommodating cavity and fixedly connected to the inner shell, and is connected to the driving motor and the thermal sheet via connecting wires.

3. The embedded thermal printer according to claim 2, characterized in that: The main control circuit board is arranged on the inner end surface of the side wall of the inner shell; and the guide rail is arranged on the bottom surface of the inner shell.

4. The embedded thermal printer according to claim 3, characterized in that: The paper bin support is provided with a through hole on the side wall facing the main control circuit board, and the connecting wire passes through the through hole.

5. The embedded thermal printer according to claim 3, characterized in that: The paper bin assembly also includes a support shaft, the paper bin support is provided with a paper bin slot, the paper bin support is provided with support arms on both sides of the paper bin slot, and the support shaft is provided between the two support arms.

6. The embedded thermal printer according to any one of claims 1 to 5, characterized in that: The printing support is provided with a paper detection sensor, and the detection sensor is located between the rubber roller and the paper bin support.

7. The embedded thermal printer according to any one of claims 1 to 5, characterized in that: The printing assembly further comprises a guide bracket, wherein the guide bracket is located between the paper outlet and the rubber roller, and the guide bracket is provided with an inclined guide surface.

Images