Integrated push block cover opening thermal printer

Abstract

The utility model provides a kind of integrated push block uncovering heat-sensitive printer, including cover, base, core, rubber roller and uncovering piece, core includes seat, heat-sensitive support, push block, lock catch and elastic piece, push block is fixedly connected on the connecting plate of lock catch, push block is located the back side of connecting plate relative to heat-sensitive support, push block is provided with driven slope, uncovering piece is movably set on seat along vertical direction, uncovering piece is provided with driving slope, push block integrated type is fixedly connected on connecting plate, and the driven slope of push block is adjacent using the driving slope of uncovering piece, then when pressing uncovering piece downwards, push block driving lock groove is separated from the axial end portion of rubber roller, to complete the separation of rubber roller and the opening of cover, the case not only will uncovering structure height integration, and can realize uncovering function using simple transmission mechanism.

Description

Technical Field

[0001] This utility model relates to the field of thermal printing equipment, and in particular to an integrated push-block opening thermal printer. Background Technology

[0002] With the widespread application of thermal printers, they are used not only in bank ATMs, supermarket cash registers, and e-commerce shipping points, but also in the rapidly growing e-commerce and express delivery industries, which place higher demands on the stability, durability, and printing accuracy and speed of printers.

[0003] Thermal printers typically consist of a cover, base, thermal sheet, and roller. Paper is fed into the roller and thermal sheet, and then printed to form an image. Because the paper needs to be replaced, the printer cover needs to be opened frequently, replaced, and then closed again, ensuring that the thermal sheet and roller are aligned.

[0004] With the trend of miniaturization of thermal printers, the integration and miniaturization of the printer's internal structure are particularly important. As a component of the opening structure, it has many parts, from the pressing part to the transmission part to the locking part, so it needs to be designed with an integrated structure. Utility Model Content

[0005] The purpose of this invention is to provide an integrated push-block thermal printer.

[0006] To achieve the purpose of this utility model, this utility model provides an integrated push-block opening thermal printer, including a cover, a base, a mechanism, a rubber roller, and an opening component. The mechanism includes a base, a thermal support, a locking component, and an elastic element. The base is mounted on the base, and the cover is connected to the base, forming a paper output port between the cover and the base. The rubber roller is rotatably mounted on the cover along the paper width direction. The thermal support is mounted on the base, and a thermal sheet is mounted on the thermal support. The thermal sheet and the rubber roller face each other and form a paper feeding channel, which communicates with the paper output port. The base has a mounting groove on the side of the thermal support with the thermal sheet. The base has mounting walls at both ends of the mounting groove along the paper width direction, and a locking groove at the upper end of the mounting wall. The locking component is rotatably mounted on the base and includes two locking arms and a connecting element. The thermal printer includes a connecting plate extending along the paper width direction and connected between two locking arms. Each locking arm has a locking groove at a slot. A rubber roller is located within a mounting groove, with its axial end within the slot. The locking groove engages with the axial end of the rubber roller. The connecting plate is located on the back side of the thermal support relative to the thermal sheet. An elastic element connects the connecting plate and the thermal support, applying an elastic force towards the rubber roller to the thermal sheet. The thermal printer also includes a push block, fixedly connected to the connecting plate and located on the back side of the connecting plate relative to the thermal support. The push block has a driven inclined surface. A cover opening component is vertically movably mounted on the base. The cover opening component has a driving inclined surface adjacent to the driven inclined surface. The downward movement of the driving inclined surface drives the driven inclined surface to move towards the rubber roller. The push block drives the locking groove to separate from the axial end of the rubber roller.

[0007] A further proposed solution is to have a sliding groove and a through groove in the vertical direction on the base body, with the through groove connecting the sliding groove and the mounting groove, the push block located in the through groove, and the cover opening component located in the sliding groove.

[0008] A further improvement is that the bottom of the chute is provided with a sliding hole, and the bottom of the cover opening part is provided with a sliding post, with the sliding post and the sliding hole fitting together with a clearance.

[0009] A further solution is that the thermal printer includes a top cover, which is connected to the base and covers the top of the base body. The top cover has a through hole above the slide groove, through which the cover opening component passes. The cover opening component is provided with a limit buckle, which is located inside the through hole and engages with the edge of the through hole for limiting.

[0010] A further proposed solution is to have an assembly groove on the back side of the base body relative to the mounting groove, with the display screen installed inside the assembly groove, and the top cover covering the display screen with a window at the display screen.

[0011] A further proposed solution is that the thermal support has a first hinge hole at each end of the paper width direction, two locking arms are located at the two ends of the connecting plate based on the paper width direction, each locking arm has a second hinge hole, and the base has a rotating shaft along the paper width direction. The rotating shaft passes through the first hinge hole and the second hinge hole, and the thermal support and the locking fastener rotate around the rotating shaft.

[0012] A further improvement is that the connecting plate has an L-shaped slot in the middle, and the push block has an L-shaped locking block that engages with the L-shaped slot.

[0013] A further improvement is that the base body has a rotating groove on the side of the slide based on the paper width direction, and the mechanism also includes a rotating rod, which is rotatably set in the rotating groove. The rotation axis of the rotating rod is parallel to the paper width direction, and the radial peripheral wall of the rotating rod is provided with an outward protrusion, which can be adjacent to the connecting plate and can drive the connecting plate to move toward the rubber roller.

[0014] A further proposed solution is to have an outer wall on the outside of the rotating groove in the paper width direction, and the mechanism also includes a lever, which is rotatably mounted on the outer wall and driven to rotate the rotating rod, thereby driving the rotating rod to rotate around the rotation axis.

[0015] The beneficial effects of this utility model are that by integrating and fixing the push block to the connecting plate, and utilizing the driving inclined surface of the cover opening component to be adjacent to the driven inclined surface of the push block, when the cover opening component is pressed down, the push block drives the locking groove to separate from the axial end of the rubber roller, thereby completing the separation of the rubber roller and the opening of the cover. When the cover is closed and locked, the elastic element applies an elastic force towards the rubber roller to the thermal sheet, and its elastic reaction also acts on the connecting plate, thereby providing a locking force for the locking arm and the locking groove to engage the end of the rubber roller. This invention not only highly integrates the cover opening structure, but also realizes the cover opening function using a simple transmission mechanism. Furthermore, the arrangement of the through grooves and slides facilitates the installation and positioning of the push block and the cover opening component. The cooperation between the sliding column and the sliding hole also makes the rotation of the push block and the movement of the cover opening component smoother. The closing of the top cover and the limiting buckle's engagement with the top cover ensure that the cover opening component does not detach from the slide groove. The display screen is mounted on the base, facilitating its assembly. The hinge between the rotating shaft and the thermal bracket and locking component allows both the thermal bracket and locking component to rotate stably around the shaft. The L-shaped locking block engages with the L-shaped slot, facilitating the assembly of the push block. In addition to opening the cover using the cover opening component, the connecting plate can also be driven by rotating the rod and the lever. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of the thermal printer of this utility model.

[0017] Figure 2This is a structural diagram of an embodiment of the thermal printer of this utility model in the open state.

[0018] Figure 3 This is a structural diagram of an embodiment of the thermal printer of this utility model from another perspective when it is in the open state.

[0019] Figure 4 This is a structural diagram of the mechanism in an embodiment of the thermal printer of this utility model.

[0020] Figure 5 This is an exploded view of the mechanism in an embodiment of the thermal printer of this utility model.

[0021] Figure 6 This is an exploded view of the mechanism in an embodiment of the thermal printer of this utility model from another perspective.

[0022] Figure 7 This is a cross-sectional view of the thermal printer embodiment of this utility model at the cover opening.

[0023] Figure 8 This is a cross-sectional view of the rotating rod in an embodiment of the thermal printer of this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0025] Reference Figures 1 to 8 The device includes a cover 2, a base 1, a mechanism 3, an upper cover 4, a rubber roller 21, and a cover opening component 34. The cover 2 is located above the base 1. The mechanism 3 includes a seat 31, a thermal support 32, a locking component 33, and multiple elastic components 335. The cover 2 is hinged to the base 1. The seat 31 is set on the base 1. The base 1 is provided with a paper tray 11. The cover 2 covers the paper tray 11. A paper outlet 10 is formed between the cover 2 and the base 1. The rubber roller 21 is rotatably set on the cover 2 along the paper width direction Y.

[0026] A thermal support 32 is mounted on a base 31. A thermal sheet 321 is mounted on the thermal support 32. The thermal sheet 321 and the rubber roller 21 are opposite each other and form a paper feeding channel 101. The paper feeding channel 101 is connected to the paper outlet 10. A mounting groove 311 is provided on the side of the thermal support 32 with the thermal sheet 321. Mounting walls 312 are provided at both ends of the mounting groove 311 based on the paper width direction Y. A slot 313 is provided at the upper end of the mounting wall 312. The slot 313 has an opening above it. A locking member 33 is rotatably mounted on the base 31. The locking member 33 includes two locking arms 332 and a connecting plate 331. The connecting plate 331 extends along the paper width direction Y and connects between the two locking arms 332. The locking arms 332 have locking grooves 333 at the slot 313. The locking grooves 333 have an opening above them.

[0027] The thermal support 32 has first hinge holes 322 at both ends of the paper width direction Y. Two locking arms 332 are located at both ends of the connecting plate 331 based on the paper width direction Y. Each locking arm 332 has a second hinge hole 334. The base 31 has a rotating shaft 314 along the paper width direction Y. The rotating shaft 314 passes through the two first hinge holes 322 and the two second hinge holes 334. The thermal support 32 and the locking fastener 33 rotate around the rotating shaft 314.

[0028] When the cover 2 is closed on top of the base 1, the rubber roller 21 is located in the mounting groove 311, the axial end of the rubber roller 21 is located in the slot 313, the locking groove 333 is engaged with the axial end of the rubber roller 21, the connecting plate 331 is located on the back side of the thermal support 32 relative to the thermal sheet 321, the elastic element 335 can be arranged as a spring, and multiple elastic elements 335 are respectively connected between the connecting plate 331 and the thermal support 32, and the elastic element 335 applies an elastic force toward the rubber roller 21 to the thermal sheet 321.

[0029] The thermal printer also includes a push block 35, which is fixedly connected to the connecting plate 331. Specifically, the connecting plate 331 has two L-shaped slots 336 in the middle, and the push block 35 has two L-shaped blocks 352. The L-shaped blocks 352 engage with the L-shaped slots 336 to achieve the fixed installation of the push block 35. The push block 35 has a driven inclined surface 351 on the back side of the L-shaped blocks 352. The push block 35 is located on the back side of the connecting plate 331 relative to the thermal bracket 32. The cover opening member 34 is movably mounted on the base 31 in the vertical direction. The cover opening member 34 has a driving inclined surface 341. The bottom of the slide groove 315 has a sliding hole 3151, and the bottom of the cover opening member 34 has a sliding column 342. The sliding column 342 and the sliding hole 3151 are in clearance fit.

[0030] The base 31 is provided with a sliding groove 315 and a through groove 316 in the vertical direction. The sliding groove 315 and the through groove 316 have openings at the top. The through groove 316 connects the sliding groove 315 and the mounting groove 311. The push block 35 is rotatably disposed in the through groove 316. The cover opening member 34 is movably disposed in the sliding groove 315 in the vertical direction. By moving the cover opening member 34 downward, the driving inclined surface 341 is adjacent to the driven inclined surface 351. The downward movement of the driving inclined surface 341 drives the driven inclined surface 351 to move toward the rubber roller 21. The push block 35 drives the locking groove 333 to separate from the axial end of the rubber roller 21.

[0031] The base 31 has a rotating groove 317 on the side of the slide groove 315 based on the paper width direction Y. The mechanism 3 also includes a rotating rod 318 and a lever 319. The rotating rod 318 extends along the paper width direction and is rotatably disposed in the rotating groove 317. The rotation axis of the rotating rod 318 is parallel to the paper width direction Y. The radial peripheral wall of the rotating rod 318 is provided with an outward protrusion 3181. The rotating groove 317 is provided with an outer wall on the outer side of the paper width direction Y. The lever 319 is rotatably disposed on the outer wall and drivenly connected to the rotating rod 318. The lever 319 drives the rotating rod 318 to rotate around the rotation axis. Then, the outward protrusion 3181 is adjacent to the connecting plate 331. The outward protrusion 3181 drives the connecting plate 331 to move toward the rubber roller 21. Therefore, the rotation of the lever 319 can also drive the locking groove 333 to separate from the axial end of the rubber roller 21.

[0032] The upper cover 4 is connected to the base 1 and covers the upper part of the seat 31. The upper cover 4 has a through hole 41 above the slide groove 315. The upper end of the cover opening part 34 has a pressing part 344, which passes through the through hole 41. Limiting buckles 343 are provided on both sides of the cover opening part 34. The limiting buckles 343 are located inside the through hole 41 and are matched with the edge of the through hole 41 to prevent the cover opening part 34 from falling out of the slide groove 315. The seat 31 has an assembly groove 361 on the back side of the slide groove 315 relative to the mounting groove 311. The display screen 362 is installed in the assembly groove 361. The upper cover 4 covers the display screen 362 and has a window 42 at the display screen 362. A circuit board is provided at the bottom of the seat 31, and the display screen 362 is connected to the circuit board.

[0033] As can be seen from the above, the push block is integrated and fixedly connected to the connecting plate. The driving inclined surface of the cover opening component is adjacent to the driven inclined surface of the push block. When the cover opening component is pressed down, the push block drives the locking groove to separate from the axial end of the rubber roller, thereby completing the separation of the rubber roller and the opening of the cover. When the cover is closed and locked, the elastic element applies an elastic force towards the rubber roller to the thermal sheet. Its elastic reaction also acts on the connecting plate, thereby providing a locking force for the locking arm and the locking groove to engage the end of the rubber roller. This invention not only highly integrates the cover opening structure, but also realizes the cover opening function using a simple transmission mechanism.

Claims

1. An integrated push-block thermal printer, comprising a cover, a base, a mechanism, a rubber roller and a cover opening component, wherein the mechanism comprises a base, a thermal support, a locking component and an elastic component, the cover is connected to the base, the base is disposed on the base, a paper output port is formed between the cover and the base, and the rubber roller is rotatably disposed on the cover along the paper width direction; The thermal support is mounted on the base, and a thermal sheet is mounted on the thermal support. The thermal sheet and the rubber roller are opposite each other and form a paper feeding channel, which is connected to the paper outlet. The base has a mounting groove on the side of the thermal support with the thermal sheet. The base has mounting walls at both ends of the mounting groove along the paper width direction. The upper end of the mounting wall has a locking groove. The locking member is rotatably mounted on the base. The locking member includes two locking arms and a connecting plate. The connecting plate extends along the paper width direction and connects between the two locking arms. The locking arms have locking grooves at the locking grooves. The rubber roller is located in the mounting groove, and the axial end of the rubber roller is located in the locking groove. The locking groove engages with the axial end of the rubber roller. The connecting plate is located on the back side of the thermal support relative to the thermal sheet. The elastic member is connected between the connecting plate and the thermal support, and the elastic member applies an elastic force toward the rubber roller to the thermal sheet. Its features are: The thermal printer further includes a push block, which is fixedly connected to the connecting plate. The push block is located on the back side of the connecting plate relative to the thermal support. The push block is provided with a driven inclined surface. The cover opening component is movably disposed on the base in a vertical direction. The cover opening component is provided with a driving inclined surface, which is adjacent to the driven inclined surface. The downward movement of the driving inclined surface drives the driven inclined surface to move toward the rubber roller. The push block drives the locking groove to separate from the axial end of the rubber roller.

2. The thermal printer according to claim 1, characterized in that: The base is provided with a sliding groove and a through groove in the vertical direction. The through groove connects the sliding groove and the mounting groove. The push block is located in the through groove, and the cover opening component is located in the sliding groove.

3. The thermal printer according to claim 2, characterized in that: The bottom of the slide groove is provided with a sliding hole, and the bottom of the cover opening component is provided with a sliding post, the sliding post and the sliding hole being clearance-fitted.

4. The thermal printer according to claim 2, characterized in that: The thermal printer includes a top cover, which is connected to the base and covers the top of the base body. The top cover has a through hole above the slide groove. The cover opening component passes through the through hole and is provided with a limit buckle. The limit buckle is located inside the through hole and engages with the edge of the through hole.

5. The thermal printer according to claim 4, characterized in that: The base has an assembly groove on the back side of the slide relative to the mounting groove, the display screen is installed in the assembly groove, the top cover covers the display screen and has a window at the display screen.

6. The thermal printer according to claim 1, characterized in that: The thermal support is provided with first hinge holes at both ends of the paper width direction. The two locking arms are located at both ends of the connecting plate based on the paper width direction. Each locking arm is provided with a second hinge hole. The base is provided with a rotating shaft along the paper width direction. The rotating shaft passes through the first hinge hole and the second hinge hole. The thermal support and the locking fastener rotate around the rotating shaft.

7. The thermal printer according to claim 1, characterized in that: The connecting plate has an L-shaped slot in the middle, and the push block has an L-shaped block that engages with the L-shaped slot.

8. The thermal printer according to any one of claims 2 to 5, characterized in that... The base body has a rotating groove on the side of the slide based on the paper width direction. The mechanism also includes a rotating rod, which is rotatably disposed in the rotating groove. The rotation axis of the rotating rod is parallel to the paper width direction. The radial peripheral wall of the rotating rod is provided with an outward protrusion, which can be adjacent to the connecting plate and can drive the connecting plate to move toward the rubber roller.

9. The thermal printer according to claim 8, characterized in that: The rotating groove has an outer wall on the outside of the paper width direction. The mechanism also includes a lever, which is rotatably mounted on the outer wall and drivenly connected to the rotating rod. The lever drives the rotating rod to rotate around the rotation axis.

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