A paper web tensioning assembly for pharmaceutical packaging printing

Abstract

The utility model relates to tensioning assembly technical field especially is a kind of paper roll tensioning assembly of medical packaging printing, including base plate, guide roller and paper roll body, base plate upper end fixedly connected with drive assembly and winding assembly, drive assembly includes support frame, support frame right side fixedly connected with servo motor, servo motor main shaft end fixedly connected with drive column, drive column rear end fixedly connected with convex ball, drive column outside and the accommodating groove inside gap cooperation that barrel shell is opened, barrel shell is fixedly connected with rubber sealing ring in the position close to left end, annular groove is set up in barrel shell inside, winding assembly includes winding drum, and the ball bearing is fixedly connected in winding drum inside by the accommodating groove set up, in the utility model, device is left with the time space of buffering in the rotational speed adjustment of servo motor main shaft when winding, significantly reduce the inertia impact, and the service life of servo motor bearing, gear is greatly extended, and maintenance cycle is doubled shortening.

Description

Technical Field

[0001] This utility model relates to the field of tensioning component technology, specifically a paper roll tensioning component for pharmaceutical packaging printing. Background Technology

[0002] Pharmaceutical packaging printing paper rolls refer to the printed rolls of paper used for packaging pharmaceutical products. They are usually printed with drug information, batch numbers, instructions for use, etc., and serve as raw materials for subsequent cutting, bag making, or labeling processes. After printing, pharmaceutical packaging must be rolled up to turn the long paper into a tight roll, protect the printed surface, facilitate storage and transportation, and prepare for subsequent slitting and bag making. The paper roll tensioning component for pharmaceutical packaging printing is a device used to roll up the pharmaceutical packaging paper after printing. By maintaining stable paper tension, it ensures neat and wrinkle-free winding and avoids deformation or damage to the printed pattern. In the paper roll winding process of pharmaceutical packaging printing, as time increases and the winding diameter gradually increases, the winding speed will gradually increase even if the roller speed remains unchanged. Although the angular velocity can be adjusted by a servo motor, as the weight of the roll gradually increases, the roller speed needs to be gradually controlled. As the roll diameter continues to increase, the paper roll diameter has become larger (inertia increases dramatically), but if the motor is still made to accelerate or stop suddenly, the inertial recoil force will directly hit the bearing tooth surface, which will easily cause fatigue of the bearing, gear and drive module of the servo motor. The speed will be significantly accelerated, and failures and maintenance will be more frequent. Therefore, a paper roll tensioning component for pharmaceutical packaging printing is proposed to address the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a paper roll tensioning component for pharmaceutical packaging printing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A paper roll tensioning assembly for pharmaceutical packaging printing includes a base plate, a guide roller, and a paper roll body. A drive assembly and a winding assembly are fixedly connected to the upper end of the base plate. The drive assembly includes a support frame, a servo motor is fixedly connected to the right side of the support frame, a drive column is fixedly connected to the end of the servo motor spindle, a convex ball is fixedly connected to the rear end of the drive column, the outer side of the drive column is clearance-fitted with the inner side of a receiving groove in the cylinder shell, a rubber sealing ring is fixedly connected to the cylinder shell near the left end, and an annular groove is formed on the inner side of the cylinder shell. The winding assembly includes a winding drum, a ball bearing is fixedly connected to the inner side of the winding drum through an air storage groove, an inner plate is fixedly connected to the air storage groove near the left end, an air vent is formed on the inner side of the inner plate, an extension column is fixedly connected to the left end of the inner plate, and the cylinder shell is slidably connected to the inner side of the winding drum through a guide block fixedly connected to the bottom end.

[0005] As a further optimization of this utility model, the number of support frames is two, each of the two support frames has a through hole on its inner side, each of the two support frames has a bearing fixedly connected to its inner side through the through hole, and the bottom of each of the two support frames is fixedly connected to the top of the substrate.

[0006] As a further optimization of this utility model, the inner side of the support frame at the left end is rotatably connected to the extension column via a bearing, and the inner side of the support frame at the right end is rotatably connected to the drive column via a bearing.

[0007] As a further optimization of this utility model, the bottom end of the guide roller is fixedly connected to the substrate, a paper roll body is attached to the outside of the guide roller, and the rear end of the paper roll body is wound around the outside of the winding drum.

[0008] As a further optimization of this utility model, the annular groove is an annular structure, the annular groove is an inclined structure, and the inner side of the annular groove is in contact with the outer side of the convex sphere.

[0009] As a further optimization of this utility model, the support frame is rotatably connected to the winding drum via ball bearings, and the drum shell is embedded inside the winding drum.

[0010] As a further optimization of this utility model, the outer side of the cylindrical shell is fitted with the inner side of the air storage groove opened on the winding drum with a clearance, the outer side of the rubber sealing ring is fitted with the inner side of the air storage groove opened on the winding drum, and a gap is provided between the left end of the cylindrical shell and the right end of the inner plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, through the configured drive and winding components, the device utilizes constant air resistance tension, and automatically reduces speed without changing speed throughout the winding process. This eliminates the need for the servo motor to instantly accelerate or stop, providing a buffer space for the servo motor's start and stop. This significantly reduces inertial impact, which leads to a substantial increase in the lifespan of the servo motor's bearings and gears, and a significant reduction in maintenance cycles. At the same time, it ensures that the paper roll is tight and neat, and that the printed surface is free from stretching deformation, thus significantly improving the quality of pharmaceutical packaging material rolls and the continuous operation efficiency of the production line. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drive component structure of this utility model; Figure 3 This is a schematic diagram of the support frame structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the winding assembly of this utility model; Figure 5 This utility model Figure 4A schematic diagram of the structure at point A; Figure 6 This is a schematic diagram of the cylindrical shell structure of this utility model.

[0013] In the diagram: 1. Substrate; 2. Guide roller; 3. Paper roll body; 4. Drive assembly; 41. Support frame; 42. Servo motor; 43. Drive column; 44. Convex ball; 45. Cylinder shell; 46. Receiving groove; 47. Rubber sealing ring; 48. Annular groove; 49. Guide block; 5. Rewinding assembly; 51. Rewinding drum; 52. Ball bearing; 53. Air reservoir; 54. Internal plate; 55. Vent; 56. Extension column. Detailed Implementation

[0014] 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.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-6 This utility model provides a technical solution: A paper roll tensioning assembly for pharmaceutical packaging printing includes a base plate 1, a guide roller 2, and a paper roll body 3. A drive assembly 4 and a winding assembly 5 are fixedly connected to the upper end of the base plate 1. The drive assembly 4 includes a support frame 41, a servo motor 42 is fixedly connected to the right side of the support frame 41, a drive column 43 is fixedly connected to the end of the main shaft of the servo motor 42, a convex ball 44 is fixedly connected to the rear end of the drive column 43, and the outer side of the drive column 43 is clearance-fitted with the inner side of a receiving groove 46 opened in the cylindrical shell 45. The cylindrical shell 45 is located near the left end. A rubber sealing ring 47 is fixedly connected to the position. An annular groove 48 is opened on the inner side of the cylinder shell 45. The winding assembly 5 includes a winding drum 51. A ball bearing 52 is fixedly connected to the inner side of the winding drum 51 through an air storage groove 53. An inner plate 54 is fixedly connected to the air storage groove 53 near the left end. An air vent 55 is opened on the inner side of the inner plate 54. An extension column 56 is fixedly connected to the left end of the inner plate 54. The cylinder shell 45 is slidably connected to the inner side of the winding drum 51 through a guide block 49 fixedly connected to the bottom end.

[0017] As a further implementation of this solution, there are two support frames 41. Both support frames 41 have through holes on their inner sides, and bearings are fixedly connected to the inner sides of both support frames 41 through the through holes. The bottom ends of both support frames 41 are fixedly connected to the top end of the substrate 1. The inner side of the left support frame 41 is rotatably connected to the extension column 56 through the bearing, and the inner side of the right support frame 41 is rotatably connected to the drive column 43 through the bearing. Through the above arrangement, the drive assembly 4 and the winding assembly 5 are supported, while ensuring the stability of the rotation of the drive assembly 4 and the winding assembly 5 and reducing the resistance to rotation. As a further implementation of this solution, the bottom end of the guide roller 2 is fixedly connected to the base plate 1, and the outer side of the guide roller 2 is attached to the paper roll body 3. The rear end of the paper roll body 3 is wound around the outer side of the winding drum 51. Through the above arrangement, it plays the role of guiding the paper roll of pharmaceutical packaging printing when it is wound up. As a further implementation of this solution, the annular groove 48 is an annular structure and an inclined structure. The inner side of the annular groove 48 fits against the outer side of the convex ball 44. With the above arrangement, when the drive column 43 rotates, the control cylinder shell 45 can slide inside the winding drum 51, providing a basis for gas resistance. As a further implementation of this solution, the support frame 41 is rotatably connected to the take-up drum 51 via ball bearing 52. The drum shell 45 is embedded inside the take-up drum 51. The outer side of the drum shell 45 is clearance-fitted with the inner side of the air storage groove 53 opened in the take-up drum 51. The outer side of the rubber sealing ring 47 is in contact with the inner side of the air storage groove 53 opened in the take-up drum 51. A gap is provided between the left end of the drum shell 45 and the right end of the inner plate 54. Through the above settings, the rotation speed of the take-up drum 51 is controlled by the reverse tension. In the initial stage, this tension is controlled within the acceptable range of paper roll tension by the rotation speed of the main shaft of the support frame 41, thereby preventing the support frame 41 from being damaged due to the failure to adjust the rotation speed of the main shaft of the support frame 41 in time.

[0018] Workflow: When winding up the paper roll for pharmaceutical packaging printing, the rear end of the paper roll body 3 is first guided backward, passing through the upper part of the front guide roller 2, then through the lower part of the rear guide roller 2, and then fixed to the outside of the winding drum 51. The servo motor 42 is started to drive the drive column 43 and the convex ball 44 to rotate. The drive column 43 rotates inside the support frame 41, and the support frame 41 is rotatably connected to the inside of the winding drum 51. The convex ball 44 slides inside the annular groove 48 opened in the drum shell 45. Under the action of the shape of the annular groove 48, through the cooperation of the convex ball 44 and the annular groove 48, the drum shell 45 slides inside the winding drum 51 through the guide block 49. At this time, the drum shell 45 begins to move left and right. The drive column 43 moves inside the receiving groove 46. During the left and right movement of the drum shell 45, the rubber sealing ring 47 seals the receiving groove 46 and the winding drum 51. When the drum shell 45 moves to the left, the storage can be... Air inside the air trough 53 is pushed out through the vent 55. When the cylinder shell 45 moves to the right, external air enters the air storage trough 53 through the vent 55. Since the diameters of the multiple vents 55 are relatively narrow, the speed at which air flows through the vents 55 can be controlled, thereby achieving a certain resistance effect. This gas resistance will drive the winding drum 51 and the extension column 56 to rotate, thus achieving the effect of tensioning the paper roll during winding. As the diameter of the paper roll increases, since the gas resistance and tension force are the same, the rotational speed of the winding drum 51 will gradually decrease with the diameter of the paper roll under the pulling action of the tension force. This pulling force is within the tension range of the paper roll, which can achieve the winding of the paper roll. This provides a buffer space in terms of time for the servo motor 42 to adjust the speed, thereby significantly reducing the phenomenon of damage to the servo motor 42 due to inertia and reducing the frequency of maintenance.

[0019] 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 paper roll tensioning assembly for pharmaceutical packaging printing, comprising a substrate (1), a guide roller (2), and a paper roll body (3), characterized in that: The upper end of the substrate (1) is fixedly connected to a drive assembly (4) and a winding assembly (5). The drive assembly (4) includes a support frame (41), a servo motor (42) is fixedly connected to the right side of the support frame (41), a drive column (43) is fixedly connected to the end of the main shaft of the servo motor (42), a convex ball (44) is fixedly connected to the rear end of the drive column (43), the outer side of the drive column (43) is clearance-fitted with the inner side of the receiving groove (46) opened in the cylindrical shell (45), a rubber sealing ring (47) is fixedly connected to the position near the left end of the cylindrical shell (45), and an annular groove (48) is opened on the inner side of the cylindrical shell (45). The winding assembly (5) includes a winding drum (51), a ball bearing (52) is fixedly connected to the inner side of the winding drum (51) through an air storage groove (53), an inner plate (54) is fixedly connected to the air storage groove (53) near the left end, an air vent (55) is provided on the inner side of the inner plate (54), and an extension column (56) is fixedly connected to the left end of the inner plate (54). The shell (45) is slidably connected to the inside of the winding drum (51) via a guide block (49) fixedly connected to the bottom end.

2. The paper roll tensioning assembly for pharmaceutical packaging printing according to claim 1, characterized in that: There are two support frames (41). Both support frames (41) have through holes on their inner sides. Both support frames (41) have bearings fixedly connected to their inner sides through the through holes. The bottom ends of both support frames (41) are fixedly connected to the top end of the base plate (1).

3. The paper roll tensioning assembly for pharmaceutical packaging printing according to claim 1, characterized in that: The inner side of the support frame (41) at the left end is rotatably connected to the extension column (56) via a bearing, and the inner side of the support frame (41) at the right end is rotatably connected to the drive column (43) via a bearing.

4. The paper roll tensioning assembly for pharmaceutical packaging printing according to claim 1, characterized in that: The bottom end of the guide roller (2) is fixedly connected to the substrate (1), and the outer side of the guide roller (2) is attached to the paper roll body (3), and the rear end of the paper roll body (3) is wound around the outer side of the winding drum (51).

5. The paper roll tensioning assembly for pharmaceutical packaging printing according to claim 1, characterized in that: The annular groove (48) is an annular structure and the annular groove (48) is an inclined structure. The inner side of the annular groove (48) is in contact with the outer side of the convex ball (44).

6. The paper roll tensioning assembly for pharmaceutical packaging printing according to claim 1, characterized in that: The support frame (41) is rotatably connected to the take-up drum (51) via ball bearings (52), and the drum shell (45) is embedded inside the take-up drum (51).

7. The paper roll tensioning assembly for pharmaceutical packaging printing according to claim 1, characterized in that: The outer side of the cylindrical shell (45) is fitted with the inner side of the air storage groove (53) opened in the winding drum (51) with a clearance. The outer side of the rubber sealing ring (47) is attached to the inner side of the air storage groove (53) opened in the winding drum (51). A gap is provided between the left end of the cylindrical shell (45) and the right end of the inner plate (54).

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