A retraction mechanism

Abstract

The utility model discloses a kind of retraction mechanisms, comprising: support rack;No. inner fixed support plate, no. inner fixed support plate is installed in the inside of support rack, the beneficial effects of the utility model are: by being provided with second motor, adjusting screw and sliding block, the output end of second motor is driven adjusting screw to rotate, adjusting screw rotates and drives the sliding block of outside to move, sliding block moves and drives sliding support synchronous movement, between sliding support and gas expansion shaft disassembly, separation treatment, by the output end of third motor drive rotating support, fixed support to rotate, the rotating direction of gas expansion shaft is adjusted, it is convenient to set up the material cylinder of retraction on gas expansion shaft, by being provided with tensioning roller, first guide roller, realize the cooperation between tensioning roller and first guide roller, the material of digital ink-jet printer is adjusted and handled through the tension of first guide roller, tensioning roller when conveying, the stability of retraction is promoted.

Description

Technical Field

[0001] This utility model relates to the field of retracting and extending mechanisms, specifically a retracting and extending mechanism. Background Technology

[0002] A digital inkjet printer is a printing device that uses digital signals to control the ejection of ink through tiny nozzles onto a printing medium (such as paper, fabric, or plastic film) to form images or text. Its core principle is based on piezoelectric or thermal inkjet technology. Piezoelectric technology: In a piezoelectric inkjet printer, a piezoelectric crystal inside the printhead deforms upon receiving an electrical signal. This deformation generates pressure, forcing ink out of the nozzle and forming tiny droplets that are ejected onto the printing medium. By precisely controlling the degree and frequency of the piezoelectric crystal's deformation, the size of the droplets and the ejection speed can be controlled, thus achieving high-quality printing results. Thermal inkjet technology: Thermal inkjet printers use heating elements to heat the ink, causing it to vaporize instantly and create bubbles. The expansion of these bubbles forces ink out of the nozzle. After the bubbles burst, the ink refills the nozzle, ready for the next ejection. This technology can also adjust the size and ejection volume of ink droplets by controlling the intensity and time of heating. The take-up and take-up mechanism of a digital inkjet printer is a key component combination responsible for the delivery, tensioning and winding of the printing media. It ensures that the printing media can move smoothly and accurately during the printing process to ensure print quality. However, the existing take-up and take-up mechanism requires cumbersome operation steps and a lot of time when replacing and installing the printing media outside the air shaft. The replacement is troublesome and affects the take-up and take-up efficiency of the printer. Utility Model Content

[0003] The purpose of this utility model is to provide a take-up and retraction mechanism to solve the problem mentioned in the background art that the existing take-up and retraction mechanism requires cumbersome operation steps and a lot of time when replacing and installing the printing medium outside the air shaft, and the replacement is troublesome, which affects the take-up and retraction efficiency of the printer.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a retracting mechanism, comprising:

[0005] Support frame;

[0006] The No. 1 inner fixed support plate is installed on the inner side of the support frame. Fixed support boxes are installed inside the support frame and at the bottom of the No. 1 inner fixed support plate. Rotating brackets are rotatably mounted on the fixed support boxes.

[0007] Fixed bracket, which is mounted on the rotating bracket;

[0008] An adjusting screw is rotatably mounted inside a fixed support box. A sliding block is installed on the adjusting screw, and the sliding block is slidably connected to the fixed support box.

[0009] A sliding bracket is installed on one side of the sliding block;

[0010] An air expansion shaft is rotatably mounted between a fixed bracket and a sliding bracket.

[0011] The No. 2 internal fixed support plate is installed on the inner side of the support frame. The No. 1 cylinder is installed on the top of the No. 2 internal fixed support plate, and the output end of the No. 1 cylinder is fixedly connected to the No. 1 adjustment bracket.

[0012] The tensioning roller is rotatably mounted inside the first adjusting bracket.

[0013] As a preferred embodiment of this utility model: a second motor is installed on one side of the fixed support box, the output end of the second motor is fixedly connected to the adjusting screw, and a limit rod is symmetrically slidably arranged inside the sliding block, and the limit rod is fixedly connected to the fixed support box.

[0014] As a preferred embodiment of this utility model: a No. 3 motor is installed inside the fixed support box, the output end of the No. 3 motor is fixedly connected to the rotating bracket, a No. 4 motor is installed on one side of the rotating bracket, and the output end of the No. 4 motor is fixedly connected to the air expansion shaft.

[0015] As a preferred embodiment of this utility model: a fixed frame is installed inside the support frame, a second guide roller is rotatably arranged on the inner side of the fixed frame, a fifth motor is installed on one side of the fixed frame, and the output end of the fifth motor is fixedly connected to the second guide roller.

[0016] As a preferred embodiment of this utility model: a second cylinder is installed on the top of the fixed frame, and a second adjusting bracket is fixedly connected to the output end of the second cylinder. A first guide roller is rotatably arranged on the inner side of the second adjusting bracket. A first motor is installed on one side of the second adjusting bracket by bolts. The output end of the first motor is fixedly connected to the first guide roller. A second limiting slide rod is symmetrically fixed to the top of the second adjusting bracket, and the second limiting slide rod is slidably connected to the fixed frame.

[0017] As a preferred embodiment of this utility model: a first guide roller is symmetrically rotatably arranged on the inner side of the support frame; a plurality of first limit slide rods are symmetrically fixed to the top of the first adjustment bracket; the first limit slide rods are slidably connected to the second inner fixed support plate; and a second guide roller is rotatably arranged on the inner side of the support frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a second motor, an adjusting screw, and a sliding block, enables the output end of the second motor to drive the adjusting screw to rotate. When the adjusting screw rotates, it drives the outer sliding block to move. When the sliding block moves, it drives the sliding bracket to move synchronously, thus disassembling and separating the sliding bracket from the air shaft. The output end of the third motor drives the rotating bracket and the fixed bracket to rotate, thereby adjusting the rotation direction of the air shaft. This facilitates the mounting of the take-up and release cylinder on the air shaft. By setting a tension roller and a first guide roller, the tension roller and the first guide roller cooperate with each other. The tension of the material in the digital inkjet printer is adjusted during conveying through the first guide roller and the tension roller, thereby improving the stability of take-up and release. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a rear view of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the support frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixed support box structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the adjusting screw structure of this utility model.

[0024] In the diagram: 1. Support frame; 2. No. 1 inner fixed support plate; 3. No. 2 inner fixed support plate; 4. No. 1 guide roller; 5. No. 1 cylinder; 6. No. 1 adjusting bracket; 7. No. 1 limit slide rod; 8. Fixed frame; 9. No. 2 cylinder; 10. No. 2 adjusting bracket; 11. No. 1 guide roller; 12. No. 1 motor; 13. No. 2 guide roller; 14. No. 2 limit slide rod; 15. Rotating bracket; 16. Fixed bracket; 17. Sliding bracket; 18. Air shaft; 19. Sliding block; 20. Adjusting screw; 21. Limit rod; 22. No. 2 motor; 23. No. 3 motor; 24. No. 4 motor; 25. Tension roller; 26. No. 5 motor; 27. No. 2 guide roller; 28. Fixed support box. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: a retracting mechanism, comprising: a support frame 1; a first inner fixed support plate 2 bolted to the inner side of the support frame 1, and fixed support boxes 28 bolted to both the inside of the support frame 1 and the bottom of the first inner fixed support plate 2, with a rotating bracket 15 rotatably mounted on the fixed support box 28; a fixed bracket 16 bolted to the rotating bracket 15; an adjusting screw 20 rotatably mounted inside the fixed support box 28, with a sliding block 19 mounted on the adjusting screw 20, and the sliding block 19 slidably connected to the fixed support box 28; a sliding bracket 17 bolted to one side of the sliding block 19; an air shaft 18 rotatably mounted between the fixed bracket 16 and the sliding bracket 17; a second inner fixed support plate 3 bolted to the inner side of the support frame 1, with a first cylinder 5 bolted to the top of the second inner fixed support plate 3, and a first adjusting bracket 6 fixedly connected to the output end of the first cylinder 5; and a tension roller 25 rotatably mounted inside the first adjusting bracket 6.

[0027] It should be noted that in this embodiment, the device is controlled by an external controller. The device is powered on via an external power supply. The output of motor 22 drives the adjusting screw 20 to rotate. When the adjusting screw 20 rotates, it moves the outer sliding block 19, which in turn moves the top sliding bracket 17. The sliding bracket 17 is then disassembled from the air shaft 18. The output of motor 23 drives the rotating bracket 15, the fixed bracket 16, and the air shaft 18 to rotate, facilitating the placement of the digital inkjet printer's printing media on the outside of one air shaft 18 and the take-up drum on the outside of the other air shaft 18. Then, motor 23 drives the rotating bracket 15 to reset, and the output of motor 22 drives the adjusting screw 20 to reset. The adjusting screw 20 then moves the outer sliding block 19 and the sliding bracket 17 back to their original positions, completing the repositioning of the air shaft 18. The support system uses the output of motor 24 to drive the air shaft 18 to rotate. The released printing media passes between guide roller 11 and guide roller 13. The output of cylinder 9 drives the adjustment bracket 10 and guide roller 11 to move downwards. The output of motor 26 drives guide roller 13 to rotate, and the output of motor 12 drives guide roller 11 to rotate. The printing media is guided and conveyed by guide rollers 11 and 13, and guided by guide roller 27. Then, it is printed by an external digital inkjet printer. After that, it is guided by guide roller 4 and tension roller 25 to another air shaft 18. The output of cylinder 5 drives adjustment bracket 6 and tension roller 25 to adjust the height position. The tension roller 25 adjusts the tension to improve the stability during winding.

[0028] In one embodiment, such as Figures 1 to 5 As shown, a second motor 22 is installed on one side of the fixed support box 28. The output end of the second motor 22 is fixedly connected to the adjusting screw 20. A limit rod 21 is symmetrically slidably arranged inside the sliding block 19. The limit rod 21 is fixedly connected to the fixed support box 28.

[0029] It should be noted that in this embodiment, the output end of the second motor 22 drives the adjusting screw 20 to rotate. When the adjusting screw 20 rotates, it drives the outer sliding block 19 to move. The sliding block 19 drives the sliding bracket 17 to move and adjust synchronously.

[0030] In one embodiment, such as Figures 1 to 5 As shown, a No. 3 motor 23 is installed inside the fixed support box 28. The output end of the No. 3 motor 23 is fixedly connected to the rotating bracket 15. A No. 4 motor 24 is installed on one side of the rotating bracket 15. The output end of the No. 4 motor 24 is fixedly connected to the air expansion shaft 18.

[0031] It should be noted that in this embodiment, the output end of motor 23 drives the rotating bracket 15 and the fixed bracket 16 to adjust the angle, thereby adjusting the angle of the air shaft 18. The output end of motor 24 drives the air shaft 18 to rotate.

[0032] In one embodiment, such as Figures 1 to 5 As shown, a fixing frame 8 is installed inside by bolts. A second guide roller 13 is rotatably installed on the inner side of the fixing frame 8. A fifth motor 26 is installed on one side of the fixing frame 8. The output end of the fifth motor 26 is fixedly connected to the second guide roller 13.

[0033] It should be noted that in this embodiment, the output end of motor 26 drives guide roller 13 to rotate, and guide roller 13 is used to transport the printing medium.

[0034] In one embodiment, such as Figures 1 to 5 As shown, a second cylinder 9 is installed on the top of the fixed frame 8. The output end of the second cylinder 9 is fixedly connected to a second adjusting bracket 10. A first guide roller 11 is rotatably arranged on the inner side of the second adjusting bracket 10. A first motor 12 is installed on one side of the second adjusting bracket 10 by bolts. The output end of the first motor 12 is fixedly connected to the first guide roller 11. A second limiting slide rod 14 is symmetrically fixed to the top of the second adjusting bracket 10. The second limiting slide rod 14 is slidably connected to the fixed frame 8.

[0035] It should be noted that in this embodiment, the output end of the second cylinder 9 drives the second adjusting bracket 10 and the first guide roller 11 to adjust their height position, and the output end of the first motor 12 drives the first guide roller 11 to rotate. The first guide roller 11 and the second guide roller 13 guide and transport the printing medium.

[0036] In one embodiment, such as Figures 1 to 5 As shown, a first guide roller 4 is symmetrically rotated on the inner side of the support frame 1, and multiple first limit slide rods 7 are symmetrically fixed to the top of the first adjustment bracket 6. The first limit slide rods 7 are slidably connected to the second inner fixed support plate 3, and a second guide roller 27 is rotatably rotated on the inner side of the support frame 1.

[0037] It should be noted that in this embodiment, the conveying medium is guided by the first guide roller 4 and the tension roller 25, and the tension of the printing medium is adjusted by the tension roller 25.

[0038] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable mechanism, characterized in that, include: Support frame (1); The No. 1 inner fixed support plate (2) is installed on the inner side of the support frame (1). The support frame (1) and the bottom of the No. 1 inner fixed support plate (2) are both equipped with fixed support boxes (28). A rotating bracket (15) is rotatably installed on the fixed support box (28). Fixed bracket (16) is mounted on rotating bracket (15); An adjusting screw (20) is rotatably mounted inside a fixed support box (28). A sliding block (19) is installed on the adjusting screw (20), and the sliding block (19) is slidably connected to the fixed support box (28). A sliding bracket (17) is installed on one side of the sliding block (19); An air shaft (18) is rotatably mounted between a fixed bracket (16) and a sliding bracket (17); The second internal fixed support plate (3) is installed on the inner side of the support frame (1). The top of the second internal fixed support plate (3) is equipped with a first cylinder (5). The output end of the first cylinder (5) is fixedly connected to a first adjusting bracket (6). Tensioning roller (25) is rotatably set inside the first adjusting bracket (6).

2. The retracting mechanism according to claim 1, characterized in that: A second motor (22) is installed on one side of the fixed support box (28). The output end of the second motor (22) is fixedly connected to the adjusting screw (20). A limit rod (21) is symmetrically slidably arranged inside the sliding block (19). The limit rod (21) is fixedly connected to the fixed support box (28).

3. The retracting mechanism according to claim 1, characterized in that: The fixed support box (28) is equipped with a No. 3 motor (23), the output end of which is fixedly connected to the rotating bracket (15). A No. 4 motor (24) is installed on one side of the rotating bracket (15), and the output end of which is fixedly connected to the air shaft (18).

4. The retracting mechanism according to claim 1, characterized in that: The support frame (1) is equipped with a fixed frame (8) inside. A second guide roller (13) is rotatably arranged on the inner side of the fixed frame (8). A fifth motor (26) is installed on one side of the fixed frame (8). The output end of the fifth motor (26) is fixedly connected to the second guide roller (13).

5. The retracting mechanism according to claim 4, characterized in that: A second cylinder (9) is installed on the top of the fixed frame (8). The output end of the second cylinder (9) is fixedly connected to a second adjusting bracket (10). A first guide roller (11) is rotatably arranged on the inner side of the second adjusting bracket (10). A first motor (12) is installed on one side of the second adjusting bracket (10) by bolts. The output end of the first motor (12) is fixedly connected to the first guide roller (11). A second limiting slide rod (14) is symmetrically fixed on the top of the second adjusting bracket (10). The second limiting slide rod (14) is slidably connected to the fixed frame (8).

6. The retracting mechanism according to claim 1, characterized in that: The inner side of the support frame (1) is symmetrically rotated with a first guide roller (4), and the top of the first adjustment bracket (6) is symmetrically fixed with multiple first limit slide rods (7). The first limit slide rods (7) are slidably connected to the second inner fixed support plate (3), and the inner side of the support frame (1) is rotatably rotated with a second guide roller (27).

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