A printing roller adjustment device for a printing apparatus

Abstract

The utility model discloses a printing roller adjusting device for printing equipment relates to printing equipment technical field, and the utility model discloses a base is fixedly connected with vertical board on the top of base, and the lateral wall of vertical board is fixedly connected with the transverse board, and the top of transverse board is fixedly connected with the casing, and the inside of casing is provided with motor, and the output shaft end of motor is fixedly connected with worm, and the top middle part of transverse board is inserted and is rotatably connected with vertical shaft, and the bottom of vertical shaft is fixedly connected with screw rod, and the lateral wall of vertical shaft is fixedly connected with worm wheel, and worm and worm wheel correspond and are engaged, and the just below of transverse board is provided with concave board of liftable and down, and the concave mouth of concave board is inserted and is rotatably connected with printing roller body, and the top middle part of concave board is fixedly connected with the thread barrel, and the barrel mouth of screw rod and thread barrel corresponds and is connected with screw thread, the utility model discloses, and the transmission is stable, and the adjustment precision is high, and the printing quality is high, and has the self -locking anti -retrogression performance to simplify the structure, and save the cost.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to a printing roller adjustment device for printing equipment. Background Technology

[0002] In printing equipment, the printing roller is one of the core components. Existing printing roller adjustment devices mostly adopt a simple screw adjustment structure, which changes the position of the printing roller by rotating the screw to push the bearing seats at both ends of the printing roller. For example, a printing roller adjustment device for printing equipment with publication number "CN222178978U" includes two lifting frames and a support frame. A sleeve is fixedly connected to the outer surface of the support frame, and a sliding sleeve is slidably connected to the inner wall of the sleeve. A spring is installed inside the sliding sleeve. A first chuck is fixedly connected to one end of the sliding sleeve outside the sleeve. A second chuck slides in contact with the outer surface of the first chuck, and the inner wall of the second chuck is fixedly connected to the outer surface of the rotating shaft.

[0003] Although the printing roller adjusting device for printing equipment disclosed in CN222178978U utilizes the cooperation between a sliding sleeve, a spring, a first chuck, and a second chuck, with the spring providing support to the sliding sleeve, allowing the sliding sleeve to consistently support the first chuck and the second chuck in contact, thus limiting the rotation of the second chuck and maintaining the stability of the rotating shaft, preventing it from rotating without external force, and thus increasing the stability of the rotating shaft and improving the printing quality, some shortcomings still exist in practical use. It relies on a single drive source to drive screws on both sides to adjust the printing roller. While theoretically a single drive shaft can ensure synchronous rotation of the lead screws on both sides of the printing roller body for height adjustment, in reality, unavoidable manufacturing errors, assembly gaps, and uneven wear from long-term operation can lead to the printing roller not rising and falling synchronously at both ends. This results in uneven distribution of printing pressure along the entire length of the printing roller, which can cause "ink streaks," local blurring, or local ghosting in the printed matter, affecting printing quality. Furthermore, a locking device is required to maintain stability during use, making the structure complex. To address these issues, the inventor proposes a printing roller adjustment device for printing equipment to solve the aforementioned problems. Utility Model Content

[0004] In order to solve the problem that the printing roller adjustment device currently used in printing equipment cannot raise and lower the two ends of the printing roller synchronously, resulting in poor printing quality, the purpose of this utility model is to provide a printing roller adjustment device for printing equipment.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a printing roller adjustment device for printing equipment, comprising a base, a vertical plate fixedly connected to the top surface of the base, a horizontal plate fixedly connected to the side wall of the vertical plate, a housing fixedly connected to the top surface of the horizontal plate, a motor disposed inside the housing, a worm gear fixedly connected to the output shaft end of the motor, a vertical shaft rotatably connected to the center of the top surface of the horizontal plate, a screw fixedly connected to the bottom end of the vertical shaft, a worm wheel fixedly connected to the side wall of the vertical shaft, the worm gear and the worm wheel corresponding to and meshing with each other, a concave plate vertically and rotatably disposed directly below the horizontal plate, a printing roller body rotatably connected to the concave opening of the concave plate, a threaded cylinder fixedly connected to the center of the top surface of the concave plate, and a screw threadedly connected to the opening of the threaded cylinder corresponding to and threadedly connected to the opening of the threaded cylinder.

[0006] Preferably, the motor has a base on its side wall, which is fixedly connected to the top surface of the horizontal plate. The worm gear is located inside the housing, and the side wall of the housing has heat dissipation holes that correspond to the motor. The motor is mounted on the base. When the motor is started, the worm rotates under the action of the motor output shaft. Through the meshing of the worm and the worm wheel, the vertical shaft can rotate, which in turn allows the screw to rotate. The heat dissipation holes allow air to circulate inside and outside the housing. Guide rods are fixedly connected to both sides of the top surface of the concave plate. The top end of the guide rod passes through the horizontal plate and is slidably connected to the horizontal plate. A limit plate is fixedly connected to the top end of the guide rod, which is located above the horizontal plate. When the screw rotates under the drive of the vertical shaft, through the meshing of the screw and the threaded cylinder, and under the limit of the guide rod and the horizontal plate, the concave plate can move vertically and smoothly. The limit plate is provided to prevent the guide rod from easily detaching from the horizontal plate.

[0007] Preferably, a driver is provided on the outer side of the concave plate. The printing roller body includes a roller shaft that passes through the concave plate and is rotatably connected to it. The output shaft of the driver is fixedly connected to the end of the roller shaft of the printing roller body. The housing of the driver is fixedly connected to the outer wall of the concave plate. Activating the driver allows the printing roller body to rotate. The printing roller body in this device has the same structure and working principle as the printing roller in publication number "CN222178978U", and will not be described in detail here. In actual use, to ensure the stability of the rotation of the printing roller body, a bearing seat can be embedded in the side wall of the concave plate. The roller shaft of the printing roller body is supported and rotated by the bearing seat to improve the stability during rotation. A slider is fixedly connected to the side wall of the concave plate, and a slide rail is fixedly connected to the side wall of the upright plate. The slider and the slide rail are corresponding and slidably connected. When the concave plate moves vertically, the cooperation between the slider and the slide rail further improves the stability of the vertical movement of the concave plate.

[0008] Compared with the prior art, the advantages of this utility model are: stable transmission, high adjustment accuracy, high printing quality, and self-locking anti-reverse performance. By using worm gear transmission as the core of adjustment, it has the characteristics of large transmission ratio and smooth movement. At the same time, by utilizing its natural self-locking property, it effectively prevents slippage and can maintain positional stability without additional locking devices, thereby simplifying the structure and saving costs. Furthermore, by using a single screw and threaded cylinder in conjunction with a guide rod, slider and slide rail, the stability can be improved when the printing roller body moves vertically, thereby avoiding the inability of the two ends of the printing roller body to rise and fall synchronously. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is another structural schematic diagram of the present utility model.

[0012] Figure 3 This is a schematic diagram of the concave plate structure of this utility model.

[0013] Figure 4 This is an enlarged view of section A of this utility model.

[0014] In the diagram: 1. Base; 2. Vertical plate; 3. Horizontal plate; 4. Housing; 5. Vertical shaft; 6. Worm gear; 7. Motor; 8. Base; 9. Worm; 10. Screw; 11. Concave plate; 12. Threaded cylinder; 13. Guide rod; 14. Limiting plate; 15. Printing roller body; 16. Driver; 17. Slider; 18. Slide rail. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-4As shown, this utility model provides a printing roller adjustment device for printing equipment, including a base 1, a vertical plate 2 fixedly connected to the top surface of the base 1, a horizontal plate 3 fixedly connected to the side wall of the vertical plate 2, a housing 4 fixedly connected to the top surface of the horizontal plate 3, a motor 7 disposed inside the housing 4, a worm gear 9 fixedly connected to the output shaft end of the motor 7, a vertical shaft 5 rotatably connected to the middle of the top surface of the horizontal plate 3, a screw 10 fixedly connected to the bottom end of the vertical shaft 5, a worm wheel 6 fixedly connected to the side wall of the vertical shaft 5, the worm gear 9 and the worm wheel 6 corresponding to and meshing with each other, a concave plate 11 is vertically and vertically arranged directly below the horizontal plate 3, a printing roller body 15 is rotatably connected to the concave opening of the concave plate 11, a threaded cylinder 12 is fixedly connected to the middle of the top surface of the concave plate 11, and the screw 10 and the opening of the threaded cylinder 12 are corresponding to and threadedly connected.

[0017] The motor 7 has a base 8 on its side wall, which is fixedly connected to the top surface of the horizontal plate 3. The worm gear 6 is located inside the housing 4. The side wall of the housing 4 has heat dissipation holes that are corresponding to the motor 7.

[0018] By adopting the above technical solution, the motor 7 is installed on the base 8. When the motor 7 is started, the worm 9 rotates under the action of the output shaft of the motor 7. Through the meshing of the worm 9 and the worm wheel 6, the vertical shaft 5 can be rotated, which in turn can make the screw 10 rotate. The heat dissipation holes are used to allow air to circulate inside and outside the housing 4.

[0019] Guide rods 13 are fixedly connected to both sides of the top surface of the concave plate 11. The top end of the guide rod 13 passes through the horizontal plate 3 and is slidably connected to the horizontal plate 3. A limiting plate 14 is fixedly connected to the top end of the guide rod 13 and is located above the horizontal plate 3.

[0020] By adopting the above technical solution, when the screw 10 rotates under the drive of the vertical shaft 5, the screw 10 and the threaded cylinder 12 mesh with each other, and under the limitation of the guide rod 13 and the horizontal plate 3, the concave plate 11 can move vertically and smoothly. The limiting plate 14 is set to prevent the guide rod 13 from easily disengaging from the horizontal plate 3.

[0021] A driver 16 is provided on the outer side of the concave plate 11. The printing roller body 15 includes a roller shaft that passes through the concave plate 11 and is rotatably connected to the concave plate 11. The output shaft of the driver 16 is fixedly connected to the end of the roller shaft of the printing roller body 15.

[0022] By adopting the above technical solution, the housing of the driver 16 is fixedly connected to the outer wall of the concave plate 11. Starting the driver 16 can make the printing roller body 15 rotate. The printing roller body 15 in this device has the same structure and working principle as the printing roller in the publication number "CN222178978U", and will not be described in detail here. In actual use, in order to ensure the stability of the rotation of the printing roller body 15, a bearing seat can be embedded in the side wall of the concave plate 11. The roller shaft of the printing roller body 15 is supported and rotated by the bearing seat to improve the stability during rotation.

[0023] The side wall of the concave plate 11 is fixedly connected to a slider 17, and the side wall of the vertical plate 2 is fixedly connected to a slide rail 18. The slider 17 corresponds to and is slidably connected to the slide rail 18.

[0024] By adopting the above technical solution, when the concave plate 11 moves vertically, the cooperation between the slider 17 and the slide rail 18 further improves the stability of the vertical movement of the concave plate 11.

[0025] Working principle: When this utility model is in use, during the preparation of printing equipment operation, when it is necessary to adjust the position of the printing roller body 15 according to the thickness of the workpiece to be printed, the motor 7 can be started. The worm 9 rotates under the action of the output shaft of the motor 7. Through the mutual meshing of the worm 9 and the worm wheel 6, the vertical shaft 5 can be rotated, which in turn can make the screw 10 rotate.

[0026] When the screw 10 rotates under the drive of the vertical shaft 5, the screw 10 and the threaded cylinder 12 mesh with each other, and the guide rod 13 and the horizontal plate 3 limit the movement of the concave plate 11, thereby enabling the concave plate 11 to move vertically smoothly. Furthermore, the cooperation between the slider 17 and the slide rail 18 further improves the stability of the vertical movement of the concave plate 11, which in turn drives the printing roller body 15 to adjust its vertical position, thereby adjusting the distance between the printing roller body 15 and the support area of ​​the machine base 1 to adapt to the thickness of the workpiece to be printed.

[0027] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A printing roller adjusting device for printing equipment, comprising a base (1), characterized in that: A vertical plate (2) is fixedly connected to the top surface of the base (1), a horizontal plate (3) is fixedly connected to the side wall of the vertical plate (2), a housing (4) is fixedly connected to the top surface of the horizontal plate (3), a motor (7) is installed inside the housing (4), a worm gear (9) is fixedly connected to the output shaft end of the motor (7), a vertical shaft (5) is rotatably connected to the middle of the top surface of the horizontal plate (3), and a screw (10) is fixedly connected to the bottom end of the vertical shaft (5). A worm gear (6) is fixedly connected to the side wall of the vertical shaft (5). The worm (9) corresponds to and meshes with the worm gear (6). A concave plate (11) is provided below the horizontal plate (3) and can be raised and lowered. The concave opening of the concave plate (11) is rotatably connected to the printing roller body (15). A threaded cylinder (12) is fixedly connected to the middle of the top surface of the concave plate (11). The screw (10) corresponds to the opening of the threaded cylinder (12) and is threadedly connected.

2. The printing roller adjustment device for printing equipment as described in claim 1, characterized in that, The motor (7) has a base (8) on its side wall, and the base (8) is fixedly connected to the top surface of the horizontal plate (3).

3. The printing roller adjusting device for printing equipment as described in claim 1, characterized in that, The worm gear (6) is located inside the housing (4), and the side wall of the housing (4) is provided with heat dissipation holes, which correspond to the motor (7).

4. The printing roller adjusting device for printing equipment as described in claim 1, characterized in that, Guide rods (13) are fixedly connected to both sides of the top surface of the concave plate (11). The top end of the guide rod (13) passes through the horizontal plate (3) and the guide rod (13) is slidably connected to the horizontal plate (3).

5. A printing roller adjusting device for a printing equipment as described in claim 4, characterized in that, The top end of the guide rod (13) is fixedly connected to a limiting plate (14), which is located above the horizontal plate (3).

6. A printing roller adjusting device for printing equipment as described in claim 1, characterized in that, A driver (16) is provided on the outer side of the concave plate (11). The printing roller body (15) includes a roller shaft that passes through the concave plate (11) and is rotatably connected to the concave plate (11). The output shaft of the driver (16) is fixedly connected to the end of the roller shaft of the printing roller body (15).

7. A printing roller adjusting device for a printing equipment as described in claim 1, characterized in that, The concave plate (11) has a slider (17) fixedly connected to its side wall, and the vertical plate (2) has a slide rail (18) fixedly connected to its side wall. The slider (17) corresponds to and is slidably connected to the slide rail (18).

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