Thermal printer with mainboard configured on cover body

Abstract

The utility model provides a thermal printer with a cover body configured with a mainboard, which comprises a base, a cover body, a rubber roller, a thermosensitive sheet and a main control circuit board, the cover body is arranged above the base, a first hinge part of the cover body is hinged to a second hinge part of the base, the rubber roller is arranged on the base, the thermosensitive sheet is arranged on the cover body, a paper outlet is formed between the base and the cover body, and the main control circuit board is arranged on the base. The thermosensitive sheet and the rubber roller are close to the paper outlet and are opposite to each other to form a paper feeding channel; the paper feeding channel is communicated with the paper outlet; a mounting groove is formed in the side, away from the thermosensitive piece, of the cover body, the main control circuit board is located in the cover body and mounted in the mounting groove, the main control circuit board is close to the first hinge part, the thermosensitive piece is connected with the main control circuit board through a control flat cable, and the control flat cable is located in the cover body. The main control circuit board is close to the thermosensitive sheet, so that the control flat cable distance between the thermosensitive sheet and the main control circuit board is reduced, the reduction of the line length means that the voltage drop is reduced, the transmission stability of printing data is improved, and then the imaging stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printing equipment, in particular to a thermal printer with a cover body configured with a mainboard. Background Art

[0002] With the popularization of thermal printers, they are not only used in bank ATMs, supermarket cash registers and e-commerce delivery offices, but also in the rapidly growing e-commerce and express delivery industries, which have higher requirements for the stability, durability, and printing accuracy and speed of the printers.

[0003] Most existing printers install the thermal film on the cover, and the main control circuit board is set on the base. Since the signal line of the thermal film needs to go around the cover to connect to the main control circuit board on the base, the signal line is long, which affects the transmission stability of the printing data and then affects the imaging stability. Utility Model Content

[0004] The utility model aims to provide a thermal printer with a cover body and a mainboard.

[0005] In order to achieve the purpose of the utility model, the utility model provides a thermal printer with a cover body and a mainboard, comprising a base, a cover body, a rubber roller, a thermal sheet and a main control circuit board, the cover body is located above the base, the first hinge part of the cover body is hinged to the second hinge part of the base, the rubber roller is arranged on the base, the thermal sheet is arranged on the cover body, a paper outlet is formed between the base and the cover body, the thermal sheet and the rubber roller are opposite to each other close to the paper outlet and form a paper feeding channel, and the paper feeding channel is connected to the paper outlet; the cover body is provided with an installation groove on a side away from the thermal sheet, the main control circuit board is located in the cover body and installed in the installation groove, the main control circuit board is close to the first hinge part, the thermal sheet is connected to the main control circuit board through a control cable, and the control cable is located in the cover body.

[0006] A further solution is that a paper inlet is formed between the base and the cover body, the paper inlet is close to the first hinge part, the paper feeding channel is connected between the paper outlet and the paper inlet, the bottom wall of the cover body is inclined close to the paper inlet, the outer end of the bottom wall is higher than the inner end of the bottom wall, and the main control circuit board is installed on the back side of the bottom wall.

[0007] A further solution is that the back side of the bottom wall is provided with supporting ribs, limiting peripheral walls and limiting buckles, the main control circuit board is adjacent to the supporting ribs, the limiting peripheral walls are adjacent to one side edge of the main control circuit board, and the limiting buckle is engaged with the other side edge of the main control circuit board.

[0008] A further solution is that the bottom wall is provided with hinged arms on both sides in the paper width direction, the first hinged part is located on the hinged arm, and the hinged arm is provided with a lead groove on the periphery of the first hinged part; a power interface and a data interface are provided on the base, and when the cover is in a closed state, the lead groove extends into the base, the power cable passes through the lead groove and is connected between the power interface and the main control circuit board, and the data cable passes through the lead groove and is connected between the data interface and the main control circuit board.

[0009] A further solution is that the base is provided with a transmission gear and a drive motor, the axial end of the rubber roller is provided with a drive gear, the transmission gear is connected between the drive gear and the drive motor, and the motor cable passes through the lead groove and is connected between the drive motor and the main control circuit board.

[0010] A further solution is that the thermal printer includes a thermal bracket, the thermal sheet is installed on the thermal bracket, the thermal bracket is installed on the cover body, and the thermal bracket is provided with a threading groove on the side close to the main control circuit board, the threading groove is arranged to penetrate in the vertical direction, and the control cable passes through the threading groove.

[0011] A further solution is that a counterweight is arranged in the base.

[0012] A further solution is that the counterweight is arranged close to the paper outlet.

[0013] The beneficial effect of the utility model is that the main control circuit board is arranged on the cover body, and the thermal sheet is also installed on the cover body. The main control circuit board is close to the thermal sheet, thereby reducing the control wiring distance between the thermal sheet and the main control circuit board. The reduction in line length means reducing the voltage drop, improving the transmission stability of the printed data, and then improving the imaging stability. In addition, the bottom wall is arranged obliquely, so that the outer end of the paper inlet is arranged larger, which is convenient for the introduction of printing paper, and the main control circuit board is stably installed with the support ribs, the limiting peripheral wall and the limiting buckle, and the articulated arm and the lead groove are used to facilitate the access of the power cable, the data cable and the motor cable, and the configuration block is set at the base close to the paper outlet, corresponding to the main control circuit board close to the paper inlet, so that the weight distribution of the thermal printer is more even, and the operation of the printer is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of an embodiment of a thermal printer of the utility model.

[0015] Figure 2 It is a structural diagram of the thermal printer embodiment of the utility model from another viewing angle.

[0016] Figure 3 It is a structural diagram of an embodiment of the thermal printer of the utility model when the cover is opened.

[0017] Figure 4It is a structural diagram of an embodiment of the thermal printer of the utility model after the outer cover shell is omitted.

[0018] Figure 5 It is an exploded view of the thermal printer embodiment of the utility model after the outer cover shell is omitted.

[0019] Figure 6 It is a cross-sectional view of the thermal printer embodiment of the utility model at the thermal sheet.

[0020] Figure 7 It is a cross-sectional view of an embodiment of the thermal printer of the utility model at the hinged arm.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 7 The thermal printer includes a base 1, a cover 2, a rubber roller 12, a thermal sheet 221, a thermal bracket 222 and a main control circuit board 23. The cover 2 is located above the base 1. The rubber roller 12 is rotatably arranged on the base 1. The thermal sheet 221 is arranged on the cover 2. A paper outlet 11 is formed between the base 1 and the cover 2. The thermal sheet 221 and the rubber roller 12 are close to the paper outlet 11 and face each other to form a paper feeding channel, which is connected to the paper outlet 11.

[0023] The cover body 2 includes an inner cover shell 211 and an outer cover shell 212. The outer cover shell 212 is sleeved outside the inner cover shell 211 and encloses a placement space. The thermistor 221 is installed on the thermistor bracket 222. The thermistor bracket 222 is installed on the inner cover shell 211. A spring 223 is elastically abutted on the back side of the thermistor bracket 222. The spring 223 applies an elastic force to the thermal sheet 221 toward the rubber roller 12. The thermistor bracket 222 is provided with a threading groove 224 on the side close to the main control circuit board 23. The threading groove 224 is arranged to penetrate in the vertical direction.

[0024] A paper inlet 16 is formed between the base 1 and the cover 2. The paper inlet 16 is located on the other side opposite to the paper outlet 11. The bottom wall 2111 of the cover 2 close to the paper inlet 16 is arranged in an inclined manner. The outer end of the bottom wall 2111 is higher than the inner end of the bottom wall 2111. The main control circuit board 23 is installed on the back side of the bottom wall 2111. The bottom wall 2111 is provided with hinge arms 243 on both sides of the paper width direction Y. The first hinge part 241 is provided on the hinge arm 243. The first hinge part 241 can be arranged in a hinge hole or a hinge column. The hinge arm 243 is connected to the first hinge part 241. A guide groove 244 is provided on the periphery of the base 1, and a second hinge portion 242 is provided on one side of the paper inlet 16. The second hinge portion 242 can be arranged in the form of a hinge hole or a hinge column. The first hinge portion 241 is hinged to the second hinge portion 242. The guide groove 244 is connected between the base 1 and the cover 2, and the paper inlet 16 is close to the first hinge portion 241. The paper feeding channel is connected between the paper outlet 11 and the paper inlet 16. Two paper clamps 15 are provided at the paper inlet 16. The two paper clamps 15 are arranged along the paper width direction Y. The paper clamps are used to guide and limit the printing paper.

[0025] The cover body 2 is provided with a mounting groove 210 on a side away from the thermal sheet 221. The main control circuit board 23 is located in the cover body 2 and horizontally installed in the mounting groove 210. The main control circuit board 23 is close to the first hinge 241. The thermal sheet 221 is connected to the main control circuit board 23 through the control cable 225. The control cable 225 is located in the cover body 2 and passes through the threading groove 224. The back side of the bottom wall 2111 is provided with a supporting rib 2113, a limiting peripheral wall 2112 and a limiting buckle 2114. The main control circuit board 23 is adjacent to the supporting rib 2113, the limiting peripheral wall 2112 is adjacent to one side edge of the main control circuit board 23, and the limiting buckle 2114 is engaged with the other side edge of the main control circuit board 23.

[0026] The base 1 is provided with a power interface 17 and a data interface 18. When the cover body 2 is in the closed state, the lead groove 244 extends into the base 1. The power cable (not shown) passes through the lead groove 244 and is connected between the power interface 17 and the main control circuit board 23. The data cable (not shown) passes through the lead groove 244 and is connected between the data interface 18 and the main control circuit board 23.

[0027] The base 1 is provided with a transmission gear and a driving motor 13, and the axial end of the rubber roller 12 is provided with a driving gear 121, and the transmission gear is connected between the driving gear 121 and the driving motor 13, and the motor cable (not shown) passes through the lead groove 244 and is connected between the driving motor 13 and the main control circuit board 23, and the power cable and the data cable can pass through the lead groove 244 on one side, and the motor cable passes through the lead groove 244 on the other side. A counterweight 14 is provided in the base 1, and the counterweight 14 is arranged close to the paper outlet 11.

[0028] As can be seen from the above, in this case, the main control circuit board is arranged on the cover body, and the thermal sheet is also installed on the cover body. The main control circuit board is close to the thermal sheet, thereby reducing the control wiring distance between the thermal sheet and the main control circuit board. The reduction in line length means reducing the voltage drop, improving the transmission stability of the printed data, and then improving the imaging stability. In addition, the bottom wall is arranged obliquely, so that the outer end of the paper inlet is arranged larger, which is convenient for the introduction of printing paper, and the main control circuit board is stably installed with the support ribs, the limiting wall and the limiting buckle, and the articulated arm and the lead groove are used to facilitate the access of the power cable, data cable and motor cable, and by setting a configuration block at the base close to the paper outlet, corresponding to the main control circuit board close to the paper inlet, the weight distribution of the thermal printer is more even, making the printer run more stably.

Claims

1. A thermal printer with a cover body and a mainboard, comprising a base, a cover body, a rubber roller, a thermal sheet and a main control circuit board, wherein the cover body is located above the base, a first hinged portion of the cover body is hinged to a second hinged portion of the base, the rubber roller is arranged on the base, the thermal sheet is arranged on the cover body, a paper outlet is formed between the base and the cover body, the thermal sheet and the rubber roller are close to the paper outlet and face each other to form a paper feeding channel, and the paper feeding channel is connected to the paper outlet; Features: The cover body is provided with a mounting groove on a side away from the thermal sheet. The main control circuit board is located in the cover body and installed in the mounting groove. The main control circuit board is close to the first hinge part. The thermal sheet is connected to the main control circuit board through a control cable. The control cable is located in the cover body.

2. The thermal printer according to claim 1, characterized in that: A paper inlet is formed between the base and the cover body, the paper inlet is close to the first hinge part, the paper feeding channel is connected between the paper outlet and the paper inlet, the cover body is arranged at an angle close to the bottom wall of the paper inlet, the outer end of the bottom wall is higher than the inner end of the bottom wall, and the main control circuit board is installed on the back side of the bottom wall.

3. The thermal printer according to claim 2, characterized in that: The back side of the bottom wall is provided with supporting ribs, limiting peripheral walls and limiting buckles, the main control circuit board is adjacent to the supporting ribs, the limiting peripheral walls are adjacent to one side edge of the main control circuit board, and the limiting buckle is engaged with the other side edge of the main control circuit board.

4. The thermal printer according to claim 2, characterized in that: The bottom wall is provided with hinged arms on both sides in the paper width direction, the first hinged portion is located on the hinged arms, and the hinged arms are provided with lead grooves on the periphery of the first hinged portion; The base is provided with a power interface and a data interface. When the cover is in the closed state, the lead groove extends into the base, the power cable passes through the lead groove and is connected between the power interface and the main control circuit board, and the data cable passes through the lead groove and is connected between the data interface and the main control circuit board.

5. The thermal printer according to claim 4, characterized in that: The base is provided with a transmission gear and a driving motor, the axial end of the rubber roller is provided with a driving gear, the transmission gear is connected between the driving gear and the driving motor, and the motor cable passes through the lead groove and is connected between the driving motor and the main control circuit board.

6. The thermal printer according to claim 1, characterized in that: The thermal printer comprises a thermal bracket, the thermal sheet is mounted on the thermal bracket, the thermal bracket is mounted on the cover body, the thermal bracket is provided with a threading groove on one side close to the main control circuit board, the threading groove is vertically penetrated, and the control cable passes through the threading groove.

7. The thermal printer according to any one of claims 1 to 6, characterized in that: A counterweight is arranged in the base.

8. The thermal printer according to claim 7, characterized in that: The counterweight block is arranged close to the paper outlet.

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