Automatic roll changing device for packaging bag production

By employing an automatic roll-changing device with servo motor-driven take-up rollers and electric push rod cutting blades in packaging bag production, the problem of poor roll-changing effect after packaging bag take-up has been solved, realizing fast and automated packaging bag roll changing and conveying, and improving production efficiency.

CN223865993UActive Publication Date: 2026-02-03ZHEJIANG XINFENGJING PLASTIC CO LTD
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Patent Information

Application Number
CN202520537382.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-03
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

In current packaging bag production, the roll-changing effect after winding is poor, it is impossible to quickly move the wound packaging bags, and there is a lack of auxiliary operations during the winding process, resulting in limitations in the overall operation.

Method used

An automatic roll-changing device for packaging bag production was designed. It uses a servo motor to drive the take-up roller, and combines an electric push rod and a cutting blade to achieve automatic roll changing. The device also uses a limit frame and limit post to limit the packaging bag and adjust its tightness to ensure smooth delivery.

Benefits of technology

It enables a fast and efficient packaging bag roll changing process, improves roll changing efficiency and the degree of automation of operation, reduces manual intervention, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging bag production, in particular to an automatic roll changing device for packaging bag production, which comprises a support plate, the front surface of the support plate is fixedly connected with a control panel, the top surface of the support plate is fixedly connected with a side frame, and the front surface of the side frame is provided with a rotating disc. A mounting motor is mounted on the back face of the rotating disc and penetrates through the interior of the side frame, and a servo motor is arranged in the rotating disc. A driving motor drives a limiting roller to rotate by 90 degrees, at the moment, a cutting blade faces downwards, then a first electric push rod is started to drive the cutting blade to move downwards, and therefore a packaging bag on the surface of a winding roller can be cut through the cutting blade, and then a servo motor slides from the surface of the winding roller; and then an installation motor is started to rotate by 180 degrees easily, and therefore the next set of winding rollers can continue to conduct winding operation.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, specifically to an automatic roll changing device for packaging bag production. Background Technology

[0002] Packaging bags generally refer to bags used for packaging various items. They are commonly used in daily life and industrial production and can be categorized into woven plastic bags, plastic film bags, and composite packaging bags.

[0003] For example, patent document CN216736718U discloses a roll-changing device for plastic packaging bags, belonging to the field of packaging bag manufacturing technology. It includes a base with a roll-up structure and a cutting structure. The roll-up structure includes a motor housing, a dual-head motor, a support column, a support frame, a turntable, a winding roller, an electric slide rail, a slider, a linear motor, a support frame, and a blocking block. The motor housing is fixedly mounted on the base. In this invention, by adding an electric slide rail and a slider, the rolled-up packaging bag can be automatically detached, greatly improving the automation and efficiency of the entire device. By adding a dual-head motor and a winding roller, multiple packaging bags can be rolled up, thereby improving the rolling efficiency and saving time. By adding a fixing plate, a lead screw slide rail, and a laser cutting head, the end of the packaging bag can be cut without manual intervention after rolling.

[0004] However, in actual use, the overall roll-changing effect is poor after the packaging bag is rolled up. It is not possible to quickly move the rolled packaging bag out. At the same time, it is not possible to perform auxiliary operations during the rolling process of the packaging bag. The overall operation is limited. Therefore, it is urgent to design an automatic roll-changing device for packaging bag production to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic roll changing device for packaging bag production, so as to solve the problems mentioned in the background art, that the overall roll changing effect is poor after the packaging bag is rolled up, the rolled packaging bag cannot be moved out quickly, and the auxiliary operation cannot be performed during the rolling process, resulting in limited overall operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic roll changing device for packaging bag production, comprising a support plate, a control panel fixedly connected to the front surface of the support plate, a side frame fixedly connected to the top surface of the support plate, a rotating disk mounted on the front surface of the side frame, an installation motor mounted on the back of the rotating disk through the interior of the side frame, and two sets of servo motors arranged inside the rotating disk.

[0007] Preferably, a take-up roller is installed at the output end of the servo motor, and an mounting sleeve is fitted onto the outer surface of the take-up roller.

[0008] Preferably, the upper and lower ends of the rotating disk are fixedly connected to support bases, and the front surface of the support base is fixedly connected to a top plate.

[0009] Preferably, a first electric push rod is fixedly connected to the lower surface of the top plate, and a base is installed at the lower end of the first electric push rod.

[0010] Preferably, a motor housing is mounted on the front surface of the base, and a drive motor is disposed inside the motor housing.

[0011] Preferably, a limiting roller is installed at the output end of the drive motor through the front surface of the base, and a cutting blade is installed on the outer surface of the limiting roller.

[0012] Preferably, a mounting block is fixedly connected to the right side surface of the side frame, a stabilizing plate is fixedly connected to the front surface of the mounting block, a second electric push rod is installed inside the stabilizing plate, a limit frame is installed on the top surface of the second electric push rod, and a limit post is installed inside the limit frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This automatic roll-changing device for packaging bag production comprises a side frame, a rotating disc, a mounting motor, a servo motor, a take-up roller, a mounting sleeve, a support base, a top plate, a first electric push rod, a base, a motor housing, and a limit roller. In operation, the take-up roller first winds up the packaging bag. Then, activating the servo motor rotates the take-up roller, thus winding the packaging bag. During winding, the support base and top plate securely hold the first electric push rod. Activating the first electric push rod causes the base to move downwards, causing the limit roller to contact the top of the winding packaging bag, thus completing the winding process. The packaging bag has a limiting effect during winding. After winding is completed, the first electric push rod rises, and then the drive motor inside the motor housing is activated. The drive motor drives the limiting roller to rotate 90 degrees, at which point the cutting blade faces downward. Then, the first electric push rod is activated again, driving the cutting blade downward, thereby cutting the packaging bag on the surface of the winding roller. Then, the servo motor slides off the surface of the winding roller, thereby unloading the packaged bag from the surface of the winding roller. Then, the mounting motor is activated and rotates 180 degrees, allowing the next set of winding rollers to continue the winding operation. Thus, the roll changing effect of this design is good, demonstrating the practicality of the design.

[0015] This automatic roll-changing device for packaging bag production, through the installation block, stabilizing plate, second electric push rod, limiting frame, and limiting post, firstly, the stabilizing plate is fixed and supported by the installation block. Then, when the packaging bag is conveyed, it will adhere to the upper surface of the limiting post. The conveying of the packaging bag is limited by the limiting frame and the top plate. Then, the tightness of the packaging bag during conveying can be adjusted by controlling the raising and lowering of the limiting frame by the second electric push rod. The overall performance is good. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the rotating disk structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the top plate and base structure of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the stabilizing plate and limiting frame structure of this utility model.

[0020] In the diagram: 1. Support plate; 2. Control panel; 3. Side frame; 4. Rotary disk; 5. Mounting motor; 6. Servo motor; 7. Take-up roller; 8. Mounting sleeve; 9. Support base; 10. Top plate; 11. First electric push rod; 12. Base; 13. Motor housing; 14. Limiting roller; 15. Cutting blade; 16. Mounting block; 17. Stabilizing plate; 18. Second electric push rod; 19. Limiting frame; 20. Limiting post. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 One embodiment provided by this utility model:

[0023] An automatic roll-changing device for packaging bag production is disclosed in this application. The control panel 2, mounting motor 5, servo motor 6, first electric push rod 11, and second electric push rod 18 used in this application are commercially available products. Their principles and connection methods are existing technologies well-known to those skilled in the art. The device includes a support plate 1, with the control panel 2 fixedly connected to the front surface of the support plate 1. A side frame 3 is fixedly connected to the top surface of the support plate 1. A rotating disk 4 is mounted on the front surface of the side frame 3. The mounting motor 5 is installed through the back of the rotating disk 4 and inside the side frame 3. A servo motor 6 is installed inside the rotating disk 4. Two sets of servo motors 6 are provided. A take-up roller 7 is mounted at the output end of the servo motor 6. A mounting sleeve 8 is fitted onto the outer surface of the take-up roller 7. Both the upper and lower ends of the rotating disk 4 are... A support base 9 is fixedly connected. A top plate 10 is fixedly connected to the front surface of the support base 9. A first electric push rod 11 is fixedly connected to the lower surface of the top plate 10. A base 12 is installed at the lower end of the first electric push rod 11. A motor housing 13 is installed on the front surface of the base 12. A drive motor is installed inside the motor housing 13. A limit roller 14 is installed through the front surface of the drive motor. A cutting blade 15 is installed on the outer surface of the limit roller 14. A mounting block 16 is fixedly connected to the right side surface of the side frame 3. A stabilizing plate 17 is fixedly connected to the front surface of the mounting block 16. A second electric push rod 18 is installed inside the stabilizing plate 17. A limit frame 19 is installed on the top surface of the second electric push rod 18. A limit post 20 is installed inside the limit frame 19. The winding roller 7 can wind up the packaging bag. Then, by starting the servo motor 6, the winding roller 7 can be rotated, thus winding up the packaging bag. During the winding process, the support base 9 and the top plate 10 can fix and support the first electric push rod 11. Then, by starting the first electric push rod 11, the base 12 moves downward, causing the limiting roller 14 to fit against the top of the winding packaging bag, providing a limiting effect during winding. After winding is complete, the first electric push rod 11 rises, and then the drive motor inside the motor housing 13 is started. The drive motor drives the limiting roller 14 to rotate 90 degrees, at which point the cutting blade 15 faces downward. Then, the first electric push rod is started again. 11 drives the cutting blade 15 downward, thereby cutting the packaging bag on the surface of the winding roller 7. Then, the servo motor 6 slides off the surface of the winding roller 7, thereby unloading the packaging bag from the surface of the winding roller 7. Then, the mounting motor 5 is started to rotate 180 degrees, so that the next set of winding rollers 7 can continue to perform the winding operation. Thus, the roll changing effect of this design is good. The mounting block 16 can fix and support the stabilizing plate 17. When the packaging bag is conveyed, the packaging bag will adhere to the upper surface of the limiting post 20. The conveying of the packaging bag is limited by the limiting frame 19 and the top plate 10. Then, the tension of the packaging bag during conveying can be adjusted by controlling the lifting and lowering of the limiting frame 19 through the second electric push rod 18.

[0024] Working principle: In use, the winding roller 7 first winds up the packaging bag. Then, the servo motor 6 is started to rotate the winding roller 7, thereby winding up the packaging bag. During the winding process, the support base 9 and the top plate 10 fix and support the first electric push rod 11. Then, by starting the first electric push rod 11, the base 12 moves downward, so that the limiting roller 14 fits against the top of the winding packaging bag, so that the packaging bag has a limiting effect during winding. When the winding is completed, the first electric push rod 11 rises, and then the drive motor inside the motor housing 13 is started. The drive motor drives the limiting roller 14 to rotate 90 degrees. At this time, the cutting blade 15 faces downward. Then, the first... The electric push rod 11 drives the cutting blade 15 to move downward, thereby cutting the packaging bag on the surface of the winding roller 7. Then, the servo motor 6 slides off the surface of the winding roller 7, thereby unloading the packaging bag from the surface of the winding roller 7. Then, the mounting motor 5 is started to rotate 180 degrees, so that the next set of winding rollers 7 can continue the winding operation. The mounting block 16 can fix and support the stabilizing plate 17. When the packaging bag is conveyed, the packaging bag will adhere to the upper surface of the limiting post 20. The conveying of the packaging bag is limited by the limiting frame 19 and the top plate 10. Then, the tension of the packaging bag during conveying can be adjusted by controlling the raising and lowering of the limiting frame 19 through the second electric push rod 18. The above is the entire working principle of this utility model.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic roll-changing device for packaging bag production, comprising a support plate (1), wherein a control panel (2) is fixedly connected to the front surface of the support plate (1), and a side frame (3) is fixedly connected to the top surface of the support plate (1), characterized in that: A rotating disk (4) is mounted on the front surface of the side frame (3). A motor (5) is mounted on the back of the rotating disk (4) through the interior of the side frame (3). A servo motor (6) is installed inside the rotating disk (4), and two sets of servo motors (6) are provided.

2. The automatic roll changing device for packaging bag production according to claim 1, characterized in that: The output end of the servo motor (6) is equipped with a take-up roller (7), and an mounting sleeve (8) is fitted on the outer surface of the take-up roller (7).

3. The automatic roll changing device for packaging bag production according to claim 1, characterized in that: The upper and lower ends of the rotating disk (4) are fixedly connected to support bases (9), and the front surface of the support base (9) is fixedly connected to a top plate (10).

4. The automatic roll changing device for packaging bag production according to claim 3, characterized in that: The lower surface of the top plate (10) is fixedly connected to a first electric push rod (11), and a base (12) is installed at the lower end of the first electric push rod (11).

5. The automatic roll changing device for packaging bag production according to claim 4, characterized in that: The front surface of the base (12) is fitted with a motor housing (13), and a drive motor is disposed inside the motor housing (13).

6. The automatic roll changing device for packaging bag production according to claim 5, characterized in that: A limiting roller (14) is installed on the front surface of the base (12) through the output end of the drive motor, and a cutting blade (15) is installed on the outer surface of the limiting roller (14).

7. The automatic roll changing device for packaging bag production according to claim 1, characterized in that: A mounting block (16) is fixedly connected to the right side surface of the side frame (3), and a stabilizing plate (17) is fixedly connected to the front surface of the mounting block (16). A second electric push rod (18) is installed inside the stabilizing plate (17), and a limit frame (19) is installed on the top surface of the second electric push rod (18). A limit post (20) is installed inside the limit frame (19).