Thermal transfer printer with side-mounted keys

Abstract

The thermal transfer printer comprises a base, a cover body, a thermal transfer ribbon frame, a thermal transfer ribbon roller assembly, a rubber roller and a thermosensitive piece, the thermal transfer ribbon frame comprises two installation side walls and an installation bottom wall, the two installation side walls are located on the two sides of the paper width direction respectively, the installation bottom wall is connected between the two installation side walls, and the two installation side walls are connected with the thermosensitive piece. The thermal sensitive sheet is installed at the bottom of the installation bottom wall, the thermal transfer ribbon roller assembly is erected between the two installation side walls, a key panel is arranged on the upper end face of each installation side wall, a key groove is formed in the position, on the bottom side of the key panel, of each installation side wall, a key module is arranged in each key groove, and the cover body is located on the base and covers the outer side of the thermal transfer ribbon frame. An operation window penetrates through the upper end face of the cover body, and the key panel is located in the operation window. According to the scheme, not only can the key module be conveniently operated when the cover body is closed, but also the key module can be operated on the mounting side wall of the thermal transfer ribbon frame when the cover body is opened, so that a user can conveniently operate and use the thermal transfer ribbon frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of thermal printing, especially relates to a thermal transfer printer with side-mounted keys. BACKGROUND

[0002] With the popularization and application of thermal transfer printers such as bill printers and label printers, thermal transfer printers are used not only in bank automatic teller machines, supermarket cash desks, catering industries and e-commerce delivery places, but also in the e-commerce and express industries, which are growing rapidly. Therefore, there are higher requirements for the stability and convenience of thermal transfer printers.

[0003] The thermal transfer printer generally comprises a base, a cover, a carbon ribbon holder, a rubber roller and a thermal sheet. The carbon ribbon holder is provided with a carbon ribbon. The printing paper and the carbon ribbon enter the position between the rubber roller and the thermal sheet. The thermal sheet is heated to form text patterns on the printing paper through thermal transfer.

[0004] The existing thermal transfer printer generally sets the key module on the cover to facilitate user operation. However, the carbon ribbon or the printing paper also needs to be replaced or adjusted, which also needs to be controlled by the key. Therefore, the cover cannot be conveniently operated when it is opened and turned over. In addition, the key module on the cover also needs additional wiring, which affects the assembly efficiency and stability of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a thermal transfer printer with side-mounted keys.

[0006] In order to achieve the purpose of the utility model, the utility model provides a thermal transfer printer with side-mounted keys, which comprises a base, a cover, a carbon ribbon holder, a carbon ribbon roller assembly, a rubber roller and a thermal sheet. The cover hinge part of the cover is hinged to the base. The carbon ribbon holder hinge part of the carbon ribbon holder is hinged to the base. The cover and the carbon ribbon holder rotate in the same direction. The rubber roller is rotatably arranged on the base. The thermal sheet and the carbon ribbon roller assembly are arranged on the carbon ribbon holder. The thermal sheet is arranged opposite to the rubber roller. The carbon ribbon holder comprises two mounting side walls and a mounting bottom wall. The two mounting side walls are respectively located on both sides of the paper width direction. The mounting bottom wall is connected between the two mounting side walls. The thermal sheet is mounted at the bottom of the mounting bottom wall. The carbon ribbon roller assembly is arranged between the two mounting side walls. The upper end face of the mounting side wall is provided with a key panel. The mounting side wall is provided with a key slot at the bottom side of the key panel. The key slot is provided with a key module. The key module comprises a circuit board, an indicator light and a key. The indicator light and the key are welded on the circuit board. The cover is located on the base and covers the outside of the carbon ribbon holder. The upper end face of the cover is provided with an operation window. The key panel is located in the operation window.

[0007] In a further aspect, the upper end face of the mounting side wall is provided with a positioning protrusion protruding upward. The key panel is located at the upper end face of the positioning protrusion. The positioning protrusion is gap-fitted with the operation window.

[0008] Further, the key slot is provided with two horizontal extending clamping slots, the circuit board is clamped with the two clamping slots, and the indicator lamp and the key are located between the two clamping slots.

[0009] Further, the upper end surface of the positioning protrusion is provided with a light transmission hole, and the indicator lamp is opposite to the light transmission hole.

[0010] Further, the circuit board is welded with a plurality of indicator lamps, the key slot is provided with a plurality of partitions, and the partitions are located between adjacent two indicator lamps.

[0011] Further, the upper end surface of the positioning protrusion is provided with a through hole, and the trigger part of the key is adjacent to the key panel through the through hole.

[0012] Further, the carbon belt frame comprises a side cover, the key slot has an opening in the horizontal outward side part, the side cover covers the opening and is adjacent to the circuit board, and the side cover is fixedly connected with the mounting side wall.

[0013] The beneficial effects of the present application are that the key panel is arranged on the upper end surface of the mounting side wall, the key module is arranged on the bottom side of the key panel, the operation window is arranged on the cover body, the key panel is arranged in the operation window, the key module can be conveniently operated when the cover body is closed, the key module can be operated on the mounting side wall of the carbon belt frame when the cover body is opened, the use convenience of the user is improved, the positioning protrusion is matched with the operation window, the closed position is more matched, the circuit board is stably arranged by the clamping slot and the side cover, the light interference between the indicator lamps is prevented by the partition, and the trigger part is arranged through the through hole, and the key panel is conveniently pressed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural diagram of a heat transfer printing machine embodiment of the present application.

[0015] Figure 2 is a structural diagram of a heat transfer printing machine embodiment of the present application when the cover body is opened.

[0016] Figure 3 is a structural diagram of a carbon belt frame in a heat transfer printing machine embodiment of the present application.

[0017] Figure 4 is a structural diagram of a carbon belt frame in a heat transfer printing machine embodiment of the present application.

[0018] Figure 5 is Figure 4 is an enlarged view of A in FIG.

[0019] Figure 6 is a partial sectional view of the hot transfer printer embodiment of the present application at the key module.

[0020] The present application is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0021] Referring to Figures 1 to 6 The hot transfer printer comprises a base 11, a cover 12, a carbon belt holder 2, a carbon belt roller assembly, a rubber roller 111 and a thermal sheet 204. The cover hinged part of the cover 12 is hinged to the base 11. The carbon belt holder hinged part 22 of the carbon belt holder 2 is hinged to the base 11. The cover 12 and the carbon belt holder 2 rotate in the same direction. The rubber roller 111 is rotatably arranged on the base 11. The thermal sheet 204 and the carbon belt roller assembly are arranged on the carbon belt holder 2. The thermal sheet 204 is arranged opposite to the rubber roller 111 and forms a paper running channel. The front side of the paper running channel has a paper outlet 10.

[0022] The cover 12 forms an accommodating cavity 122 inside. The cover 12 is located on the base 11 and covers the outside of the carbon belt holder 2. The carbon belt holder 2 is located in the accommodating cavity 122. The upper end face of the cover 12 is provided with an operation window 121. The key panel 24 is located in the operation window 121 and is connected with the base 11 through the clamping block 123 of the cover 12.

[0023] The carbon belt holder 2 comprises two installation side walls 201, an installation bottom wall 202 and a side cover 205. The two installation side walls 201 are respectively located on both sides of the paper width direction Y. The installation bottom wall 202 is connected between the two installation side walls 201. The thermal sheet 204 is installed at the bottom of the installation bottom wall 202. The carbon belt roller assembly comprises a to-be-printed roller 212 and a recycling roller 211. The to-be-printed roller 212 and the recycling roller 211 are arranged between the two installation side walls 201. The upper end face of the installation side wall 201 on one side is provided with the key panel 24. The upper end face of the installation side wall 201 is provided with a positioning protrusion 23 protruding upward. The key panel 24 is located at the upper end face of the positioning protrusion 23. When the cover 12 is covered, the positioning protrusion 23 is gap-fitted with the operation window 121.

[0024] The installation side wall 201 is provided with a key slot 231 at the bottom side of the key panel 24. The key slot 231 is provided with a key module 3. The key module 3 comprises a circuit board 31, a plurality of indicator lights 32 and a plurality of keys 33. The indicator lights 32 and the keys 33 are welded on the circuit board 31. The key slot 231 is provided with two clamping grooves 233 extending in the horizontal direction. The circuit board 31 is clamped with the two clamping grooves 233. The indicator lights 32 and the keys 33 are located between the two clamping grooves 233.

[0025] The upper end surface of the positioning protrusion 23 is provided with a plurality of light transmission holes 234 and a plurality of through holes 233, the key panel 24 covers the plurality of light transmission holes 234 and the plurality of through holes 233, the indicator lamp 32 is opposite to the light transmission hole 234, and the key panel 24 is provided with a light transmission part at the position corresponding to the light transmission hole 234, the trigger part of the key 33 is adjacent to the key panel 24 through the through hole 233, a plurality of partitions 232 are arranged in the key groove 231, and the partition 232 is located between two adjacent indicator lamps 32. The key groove 231 has an opening on the horizontal outward side, the side cover 205 covers the opening and is adjacent to the circuit board 31, and the side cover 205 is fixedly connected with the mounting side wall 201.

[0026] As can be seen from the above, by arranging the key panel on the upper end surface of the mounting side wall, arranging the key module on the bottom side of the key panel, and arranging the operation window on the cover body, the key panel is arranged in the operation window, and the key module can be conveniently operated when the cover body is covered, and the key module can also be operated on the mounting side wall of the carbon tape frame when the cover body is opened, so that the use convenience of the user is improved.

Claims

1. A side key hot transfer printer, comprising a base, a cover, a ribbon holder, a ribbon roller assembly, a rubber roller and a thermal sheet, a cover hinge of the cover is hinged to the base, a ribbon holder hinge of the ribbon holder is hinged to the base, the cover and the ribbon holder rotate in the same direction, the rubber roller is rotatably arranged on the base, the thermal sheet and the ribbon roller assembly are arranged on the ribbon holder, and the thermal sheet is arranged opposite to the rubber roller. Characterized in that: the ribbon holder comprises two mounting side walls and a mounting bottom wall, the two mounting side walls are respectively located on both sides in the paper width direction, the mounting bottom wall is connected between the two mounting side walls, the thermal sheet is mounted at the bottom of the mounting bottom wall, the ribbon roller assembly is arranged between the two mounting side walls, and an upper end surface of the mounting side wall is provided with a key panel; the mounting side wall is provided with a key slot at the bottom side of the key panel, a key module is arranged in the key slot, the key module comprises a circuit board, an indicator light and a key, and the indicator light and the key are welded on the circuit board; the cover is located on the base and covers the outside of the ribbon holder, an upper end surface of the cover is provided with an operation window, and the key panel is located in the operation window.

2. The hot transfer printer according to claim 1, characterized in that: an upper end surface of the mounting side wall is provided with a positioning protrusion protruding upward, the key panel is located at the upper end surface of the positioning protrusion, and the positioning protrusion is gap-fitted with the operation window.

3. The hot transfer printer according to claim 2, characterized in that: two horizontal extending clamping grooves are arranged in the key slot, the circuit board is clamped with the two clamping grooves respectively, and the indicator light and the key are located between the two clamping grooves.

4. The hot transfer printer according to claim 3, characterized in that: an upper end surface of the positioning protrusion is provided with a light transmission hole, and the indicator light is opposite to the light transmission hole.

5. The hot transfer printer according to claim 4, characterized in that: a plurality of the indicator lights are welded on the circuit board, a plurality of partitions are arranged in the key slot, and the partitions are located between adjacent two indicator lights.

6. The hot transfer printer according to claim 3, characterized in that: an upper end surface of the positioning protrusion is provided with a through hole, and a trigger part of the key passes through the through hole and abuts with the key panel.

7. The hot transfer printer according to any one of claims 1 to 6, characterized in that: the ribbon holder comprises a side cover, the key slot has an opening at the horizontal outward side, the side cover covers the opening and abuts with the circuit board, and the side cover is fixedly connected with the mounting side wall.

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