Paper tape feeding device of barcode printer

Abstract

The utility model discloses a paper tape feeding device of a barcode printer, which relates to the technical field of paper tape feeding devices and comprises a case, the top end of the case is movably connected with a cover through a rotating shaft, and a support plate is fixedly connected inside the case. By means of the limiting mechanism, according to the width of the paper tape body, the clamping ring slides to be attached to the paper tape body, then the threaded rod is rotated to drive the threaded block and the sleeve to move downwards, meanwhile, the two connecting rods on the outer wall of the sleeve drive the two rolling wheels to slide downwards on the surfaces of the wedge-shaped blocks, the wedge-shaped blocks are far away from each other, and the paper tape body is clamped. In the process, a wedge-shaped block drives an inserting rod to do synchronous motion and drives a first spring to do telescopic motion, so that the inserting rod enters a transmission wheel, the paper tape body is clamped, a worker can conveniently use a clamping ring to clamp the position of the paper tape body, and the clamping requirement of the paper tape bodies with different widths is met; and the correct position of the paper tape in the printing process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of paper tape feeding devices, and more specifically to a paper tape feeding device of a bar code printer. Background Art

[0002] The tape feed is the part of the printer that feeds the tape into the printing position. In old typewriters and some dot-matrix printers, the tape feed usually consisted of some movable gears and clamps that held the tape and mechanically moved it forward so that the print head could print characters on it.

[0003] Patent document CN1636755A discloses a paper tape printer, which includes a roll paper holder storage part, a positioning recess formed on the bottom of the storage part, the recess is rectangular in plan view and has a predetermined depth, a rectangular discrimination recess is arranged between the positioning recess and the inner bottom end of a holder support, the discrimination recess can cooperate to receive a roll paper discrimination part extending inwardly from the lower end of the positioning holder at a substantially right angle to the positioning holder for a predetermined length. The roll paper discrimination part is formed with several sensor holes arranged in an L-shaped pattern. In the discrimination recess, a corresponding number of roll paper discrimination sensors arranged in a corresponding L-shaped pattern are arranged.

[0004] Regarding the above-mentioned related technologies, there is no mention of how to fix the width of the paper tape. The utility model inventor believes that in the use of the paper tape printer, the feeding and fixing of the paper tape is an important link. Since the width of the paper tape may vary due to different printing requirements, the traditional paper tape fixing and positioning is an important but cumbersome process. It is necessary to manually adjust the position of the pressure roller or the cassette roller to ensure that the paper tape maintains the correct position during the printing process. However, when processing paper tapes of different widths, repeated adjustments may be required, which increases the complexity of the operation. For this reason, we provide a paper tape feeding device for a barcode printer to solve the above problems. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a paper tape feeding device for a barcode printer, which adopts the following technical solutions:

[0006] A paper tape feeding device for a barcode printer comprises a chassis, the top of the chassis is movably connected to a cover via a rotating shaft, and the interior of the chassis is fixedly connected to a support plate, the interior of the support plate is respectively movably connected to two transmission wheels, the outer walls of the transmission wheels are sleeved with a paper tape body, and the outer walls of the transmission wheels are movably connected to a clamping ring, the outer walls of the transmission wheels are provided with a movable groove, and the interior of the movable groove is fixedly connected to a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring three, one side of the clamping ring is fixedly connected to a support block, and one side of the support block is movably connected to a limiting mechanism, one side of the support plate is fixedly connected to a mounting block, and the interior of the mounting block is movably connected to a tensioning mechanism.

[0007] Furthermore, the limiting mechanism includes a threaded rod, a threaded block, a sleeve, a connecting rod and a roller, the outer wall of the threaded rod is rotatably connected to the interior of the threaded block through a thread, and the bottom end of the threaded block is fixedly connected to the top end of the sleeve, the outer wall of the sleeve is respectively fixedly connected to one end of two connecting rods, and one end of the connecting rod is movably connected to the interior of the roller through a rotating shaft.

[0008] By adopting the above technical solution, the fixed connection between the threaded block and the sleeve provides a stable supporting platform for the connecting rod and the roller, thereby ensuring the stability of the entire mechanism.

[0009] Furthermore, one end of the threaded block is slidably connected to one side of the support block, and the bottom end of the support block is slidably connected to a wedge block, and the roller is slidably connected to one side of the wedge block.

[0010] By adopting the above technical solution, the support block provides a stable support platform for the threaded block through a sliding connection, ensuring that the threaded block maintains stability during movement.

[0011] Furthermore, a plug rod is fixedly connected to one side of the wedge block, and a spring is sleeved on the outer wall of the plug rod, and a fixed block is fixedly connected to the top end of the support block.

[0012] By adopting the above technical solution, through the special shape of the wedge block and the design of the spring, the wedge block can switch the telescopic state of the state plug rod at any time, thereby clamping the position of the clamping ring.

[0013] Furthermore, the two ends of the spring are respectively fixedly connected to the fixed block and one end of the wedge block, the bottom end of the threaded rod is movably connected to the top end of the support block, and the outer wall of the threaded rod is movably connected to the inside of the sleeve.

[0014] By adopting the above technical solution, the design of spring 1 enables the entire mechanism to be automatically adjusted according to the width of the paper tape.

[0015] Furthermore, the tensioning mechanism includes a moving block, a sliding rod, a second spring, and a pressure block. The bottom end of the moving block is fixedly connected to the top end of the sliding rod, and the bottom end of the sliding rod is fixedly connected to the top end of the pressure block. One end of the second spring is fixedly connected to the bottom end of the moving block.

[0016] By adopting the above technical solution, the second spring can, through its own elastic pressure, cause the clamping ring to press the paper tape body tightly according to the width of the paper tape body.

[0017] Furthermore, the outer wall of the slide bar is movably connected to the inside of the mounting block, and the slide bar is located on the opposite side of the two springs 2, and the top end of the moving block is fixedly connected to a cylinder.

[0018] By adopting the above technical solution, through the provision of the air cylinder, the air cylinder is fixedly connected through the moving block, and the tensioning force can be automatically adjusted according to the actual situation of the paper tape body.

[0019] Furthermore, one side of the cylinder is fixedly connected to the inside of the mounting block, and the bottom end of the pressing block is closely attached to the outer surface of the paper tape body.

[0020] By adopting the above technical solution, the bottom end of the pressing block is close to the paper tape body, providing a stable fixing point for the paper tape, thereby preventing the paper tape from sliding or twisting during the transmission process.

[0021] In summary, the utility model includes the following beneficial technical effects:

[0022] (1) The utility model sets a limiting mechanism, according to the width of the paper tape body, slides the clamping ring so that the clamping ring is attached to the paper tape body, then rotates the threaded rod, so that the threaded rod drives the threaded block and the sleeve to move downward, and at the same time, the two connecting rods on the outer wall of the sleeve drive the two rollers to slide downward on the surface of the wedge block, so that the wedge blocks move away from each other. In this process, the wedge block drives the insertion rod to move synchronously, and drives the spring to perform telescopic movement, so that the insertion rod enters the interior of the transmission wheel, thereby clamping the paper tape body, which is conducive to the staff using the clamping ring to quickly clamp the position of the paper tape body and meet the clamping requirements of paper tape bodies of different widths, thereby ensuring that the paper tape maintains the correct position during the printing process;

[0023] (2) The utility model sets a tensioning mechanism and starts the cylinder through the controller, so that the cylinder drives the moving block to move downward. At the same time, the spring 2 performs a telescopic movement. During this process, the moving block drives the pressure block to move downward through the slide rod, and the pressure block appropriately tightens the paper tape body, which is beneficial to automatically adjust the tensioning force of the paper tape body and ensure that the paper tape body maintains appropriate tension during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a partial side view structural schematic diagram of the utility model;

[0026] Figure 3 It is a partial side view structural schematic diagram of the utility model;

[0027] Figure 4 For the utility model Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0028] Figure 5 This is a schematic diagram of the tensioning mechanism structure of the utility model;

[0029] Figure 6 It is a schematic diagram of the tensioning mechanism and its connecting parts structure of the utility model.

[0030] Description of the numbers in the figure:

[0031] 1. Chassis; 2. Machine cover; 3. Support plate; 4. Driving wheel; 5. Paper tape body; 6. Snap ring; 7. Movable groove; 8. Limiting mechanism; 801. Threaded rod; 802. Threaded block; 803. Sleeve; 804. Connecting rod; 805. Roller; 9. Tensioning mechanism; 901. Moving block; 902. Sliding rod; 903. Spring 2; 904. Pressing block; 10. Telescopic rod; 11. Spring 3; 12. Support block; 13. Mounting block; 14. Wedge block; 15. Insert rod; 16. Spring 1; 17. Fixed block; 18. Cylinder. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0033] The following is combined with Figure 1 —6 The utility model is further described in detail.

[0034] See also Figure 1-6, a paper tape feeding device of a barcode printer, comprising a chassis 1, the top of the chassis 1 is movably connected to a cover 2 through a rotating shaft, and a support plate 3 is fixedly connected to the inside of the chassis 1, and two transmission wheels 4 are movably connected to the inside of the support plate 3, and the outer walls of the transmission wheels 4 are all sleeved with a paper tape body 5, and the outer wall of the transmission wheel 4 is movably connected with a clamping ring 6. It should be noted that the movable connection design of the clamping ring 6 enables the clamping ring 6 to be tightly attached to the paper tape body 5, thereby preventing the paper tape body 5 from sliding or twisting during the transmission process. A movable groove 7 is opened on the outer wall of the transmission wheel 4, and a telescopic rod 10 is fixedly connected to the inside of the movable groove 7, and a spring three 11 is sleeved on the outer wall of the telescopic rod 10, one side of the clamping ring 6 is fixedly connected to a support block 12, and one side of the support block 12 is movably connected to a limiting mechanism 8, one side of the support plate 3 is fixedly connected to a mounting block 13, and the mounting block 13 is movably connected to a tensioning mechanism 9. It should be further noted that the movable connection design of the tensioning mechanism 9 enables the tensioning mechanism 9 to be automatically adjusted according to the tension of the paper tape body 5.

[0035] See also Figure 1-4 The limiting mechanism 8 includes a threaded rod 801, a threaded block 802, a sleeve 803, a connecting rod 804 and a roller 805. It should be noted that the fixed connection between the threaded block 802 and the sleeve 803 provides a stable support platform for the connecting rod 804 and the roller 805, thereby ensuring the stability of the entire mechanism. The outer wall of the threaded rod 801 is rotatably connected to the inside of the threaded block 802 through a thread, and the bottom end of the threaded block 802 is fixedly connected to the top end of the sleeve 803. The outer wall of the sleeve 803 is respectively fixedly connected to one end of the two connecting rods 804, and one end of the connecting rod 804 is movably connected to the inside of the roller 805 through a rotating shaft. One end of the threaded block 802 is slidably connected to one side of the support block 12, and the support The bottom end of block 12 is slidably connected with a wedge block 14, and roller 805 is slidably connected to one side of the wedge block 14. One side of the wedge block 14 is fixedly connected with an insertion rod 15, and the outer wall of the insertion rod 15 is sleeved with a spring 16. It should be further explained that through the special shape of the wedge block 14 and the design of the spring 16, the wedge block 14 can switch the telescopic state of the insertion rod 15 at any time, thereby clamping the position of the clamping ring 6. The top end of the support block 12 is fixedly connected with a fixed block 17, and the two ends of the spring 16 are respectively fixedly connected to the fixed block 17 and one end of the wedge block 14. The bottom end of the threaded rod 801 is movably connected to the top of the support block 12, and the outer wall of the threaded rod 801 is movably connected to the inside of the sleeve 803.

[0036] See also Figure 1 , Figure 5 and Figure 6The tensioning mechanism 9 includes a moving block 901, a slide bar 902, a second spring 903, and a pressing block 904. It should be noted that the bottom end of the pressing block 904 is in close contact with the paper tape body 5, providing a stable fixing point for the paper tape body 5, thereby preventing the paper tape body 5 from sliding or twisting during the transmission process. The bottom end of the moving block 901 is fixedly connected to the top end of the slide bar 902, and the bottom end of the slide bar 902 is fixedly connected to the top end of the pressing block 904. One end of the second spring 903 is fixedly connected to the bottom end of the moving block 901. The two ends are fixedly connected. It should be further explained that the spring 2 903 can, through its own elastic pressure, press the retaining ring 6 against the paper tape body 5 according to the width of the paper tape body 5. The outer wall of the slide bar 902 is movably connected to the inside of the mounting block 13, and the slide bar 902 is located on the opposite sides of the two spring 2 903. The top of the moving block 901 is fixedly connected to the cylinder 18, and one side of the cylinder 18 is fixedly connected to the inside of the mounting block 13. The bottom end of the pressing block 904 is tightly attached to the outer surface of the paper tape body 5.

[0037] The implementation principle of the embodiment of the utility model is as follows: first, the paper tape body 5 is sleeved on the transmission wheel 4. After the paper tape body 5 is wound around the initial transmission wheel 4 for multiple times, the clamp ring 6 is then moved to one side of the paper tape body 5 so that the clamp ring 6 is attached to the paper tape body 5. Secondly, the threaded rod 801 is rotated so that the threaded rod 801 drives the threaded block 802 and the sleeve 803 to move downward. At the same time, the two connecting rods 804 on the outer wall of the sleeve 803 drive the two rollers 805 to slide downward on the surface of the wedge block 14 so that the two wedge blocks 14 are separated from each other. In this process, the wedge The shape block 14 drives the insertion rod 15 to move synchronously, and drives the spring 16 to perform telescopic movement, so that the insertion rod 15 enters the interior of the transmission wheel 4, thereby fixing the position of the paper tape body 5. Finally, if the paper tape body 5 is too loose during the transmission process, the cylinder 18 is started by the controller, so that the cylinder 18 drives the moving block 901 to move downward. At the same time, the spring 2 903 performs telescopic movement. During this process, the moving block 901 drives the pressing block 904 to move downward through the sliding rod 902, and the pressing block 904 appropriately tightens the paper tape body 5.

[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A paper tape feeding device for a barcode printer, comprising a housing (1), characterized in that: The top of the chassis (1) is movably connected to a cover (2) via a rotating shaft, and a support plate (3) is fixedly connected to the inside of the chassis (1), and two transmission wheels (4) are movably connected to the inside of the support plate (3), and the outer walls of the transmission wheels (4) are sleeved with a paper tape body (5), and the outer walls of the transmission wheels (4) are movably connected with a clamping ring (6), and the outer walls of the transmission wheels (4) are provided with a movable groove (7), and the inside of the movable groove (7) is fixedly connected with a telescopic rod (10), and the outer wall of the telescopic rod (10) is sleeved with a spring three (11), one side of the clamping ring (6) is fixedly connected to a support block (12), and one side of the support block (12) is movably connected to a limiting mechanism (8), one side of the support plate (3) is fixedly connected to a mounting block (13), and the inside of the mounting block (13) is movably connected with a tensioning mechanism (9).

2. The paper tape feeding device of a barcode printer according to claim 1, characterized in that: The limiting mechanism (8) comprises a threaded rod (801), a threaded block (802), a sleeve (803), a connecting rod (804) and a roller (805); the outer wall of the threaded rod (801) is rotatably connected to the inside of the threaded block (802) through a thread, and the bottom end of the threaded block (802) is fixedly connected to the top end of the sleeve (803); the outer wall of the sleeve (803) is respectively fixedly connected to one end of two connecting rods (804), and one end of the connecting rod (804) is movably connected to the inside of the roller (805) through a rotating shaft.

3. The paper tape feeding device of a barcode printer according to claim 2, characterized in that: One end of the threaded block (802) is slidably connected to one side of the support block (12), and the bottom end of the support block (12) is slidably connected to a wedge block (14), and the roller (805) is slidably connected to one side of the wedge block (14).

4. The paper tape feeding device of a barcode printer according to claim 3, characterized in that: A plug rod (15) is fixedly connected to one side of the wedge block (14), and a spring (16) is sleeved on the outer wall of the plug rod (15). A fixed block (17) is fixedly connected to the top end of the support block (12).

5. The paper tape feeding device of a barcode printer according to claim 4, characterized in that: The two ends of the spring 1 (16) are respectively fixedly connected to one end of the fixed block (17) and the wedge block (14), the bottom end of the threaded rod (801) is movably connected to the top end of the support block (12), and the outer wall of the threaded rod (801) is movably connected to the inside of the sleeve (803).

6. The paper tape feeding device of a barcode printer according to claim 1, characterized in that: The tensioning mechanism (9) comprises a moving block (901), a sliding rod (902), a second spring (903), and a pressing block (904); the bottom end of the moving block (901) is fixedly connected to the top end of the sliding rod (902), and the bottom end of the sliding rod (902) is fixedly connected to the top end of the pressing block (904); and one end of the second spring (903) is fixedly connected to the bottom end of the moving block (901).

7. The paper tape feeding device of a barcode printer according to claim 6, characterized in that: The outer wall of the slide bar (902) is movably connected to the inside of the mounting block (13), and the slide bar (902) is located on the opposite side of the two springs (903). The top end of the moving block (901) is fixedly connected to the cylinder (18).

8. The paper tape feeding device of a barcode printer according to claim 7, characterized in that: One side of the cylinder (18) is fixedly connected to the inside of the mounting block (13), and the bottom end of the pressing block (904) is tightly attached to the outer surface of the paper tape body (5).

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