Bubble film tension adjustment mechanism

Abstract

The utility model relates to bubble film processing technical field provides a bubble film tension adjusting mechanism, including mounting panel and moving frame, the mounting panel upper end outer wall is equipped with the mounting seat, is connected with the two -way screw through bearing in the mounting seat, the mounting panel upper end outer wall fixedly connected with the mounting frame, the mounting frame one side outer wall fixedly connected with the rotating motor, the output shaft of rotating motor and the rotating center fixed connection of two -way screw one end, both ends of two -way screw are equipped with moving frame, the mounting panel upper end outer wall is equipped with a plurality of first guide rail, the moving frame lower extreme is located in the first guide rail.

Description

Technical Field

[0001] This utility model relates to the field of bubble film processing technology, and in particular to a bubble film tension adjustment mechanism. Background Technology

[0002] In the bubble wrap processing industry, tension control is crucial to product quality, directly affecting the precision of subsequent cutting and laminating processes. Existing tension adjustment devices mostly employ a single-direction stretching structure, requiring multiple drive components to control the lateral and longitudinal tension separately. This not only results in complex structures and high energy consumption but also leads to uneven stress on the bubble wrap due to asynchronous adjustments, easily causing defects such as wrinkles and breakage. Furthermore, traditional devices suffer from poor linkage between the clamping and resetting mechanisms, requiring manual adjustment of component positions after stretching, reducing production efficiency and failing to meet the continuous operation requirements of automated production lines. Therefore, there is an urgent need for a tension adjustment mechanism that can achieve multi-directional synchronous adjustment, has a simplified structure, and a high degree of automation to overcome the shortcomings of existing technologies.

[0003] To address this, patent CN215248531U discloses a tensioning device for bubble wrap production, comprising a base plate, two fixed plates, an upper limit wheel, a lower limit wheel, and an adjusting wheel. Both ends of the bottom sides of the base plate are movably connected to traveling wheels, and both ends of the top sides of the base plate are fixedly connected to electric telescopic columns. The top of each electric telescopic column is fixedly connected to one side of the bottom of the fixed plate. A connecting rod is fixedly connected to the top left side of the fixed plate, and the other end of the connecting rod is movably connected to the middle of one end of a pressure roller. Another connecting rod is movably connected to the middle of the other end of the pressure roller. This tensioning device for bubble wrap production, through the use of two motors, can change the height of the adjusting wheel. The control system within the device dynamically adjusts the movement distance of the bubble wrap based on the pressure sensed by the pressure sensor, indirectly controlling the tension of the bubble wrap and facilitating its winding.

[0004] The existing technical solutions mentioned above have the following drawbacks: the existing devices lack multi-directional coordinated adjustment capabilities and efficient integrated drive design. Utility Model Content

[0005] The purpose of this invention is to provide a bubble film tension adjustment mechanism to address the shortcomings of existing bubble film tension adjustment mechanisms.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bubble film tension adjustment mechanism, including a mounting plate and a movable frame. The upper outer wall of the mounting plate is provided with a mounting seat, and the mounting seat is connected to a bidirectional lead screw through a bearing. A mounting frame is fixedly connected to the upper outer wall of the mounting plate. A rotary motor is fixedly connected to one side of the outer wall of the mounting frame. The output shaft of the rotary motor is fixedly connected to the rotation center of one end of the bidirectional lead screw. Movable frames are provided at both ends of the bidirectional lead screw. The upper outer wall of the mounting plate is provided with multiple first guide rails. The lower end of the movable frame is located in the first guide rail. The upper end of the movable frame is provided with two symmetrical mounting grooves. A first movable block is provided in the mounting groove. A third guide rail is provided in the mounting groove. The first movable block is located in the third guide rail. Driving the rotary motor can simultaneously make the two movable frames move towards each other or away from each other.

[0007] Preferably, a linear motor is fixedly connected to the upper outer wall of the first movable block, the output shaft of the linear motor is fixedly connected to the upper end of the connecting rod, and the lower end of the connecting rod is fixedly connected to the upper outer wall of the pressure block. The linear motor can adjust the height of the pressure block.

[0008] Preferably, one side of the outer wall of the first movable block is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly connected to one side of the outer wall of the mounting groove. The first spring provides a thrust for the reset of the first movable block.

[0009] Preferably, the movable frame is provided with a second guide rail, and the second guide rail is provided with a second movable block. The second movable block is located directly below the corresponding pressure block, and the second movable block and the pressure block clamp and fix the bubble film by friction.

[0010] Preferably, one side of the outer wall of the second movable block is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly connected to one side of the outer wall of the second guide rail. The second spring can apply a pushing force to reset the second movable block to directly below the pressure block.

[0011] Preferably, the upper outer wall of the mounting plate is provided with multiple fixing brackets, the upper end of the fixing brackets is located above the second guide rail and on one side of the second moving block, and the second moving block is pushed away during the inclined edge fitting process.

[0012] Preferably, the upper end of the second movable block is at the same height as the upper end of the fixed frame. Both the second movable block and the fixed frame are provided with inclined sides, and the inclined sides of the two are in contact. The fixed frame is at the same height as the second movable block, which can ensure that the fixed frame can contact the second movable block and apply thrust in alignment.

[0013] Preferably, multiple legs are fixedly connected to the lower outer wall of the mounting plate, which increases the stability of the device.

[0014] The bubble film tension adjustment mechanism provided by this utility model has the following advantages:

[0015] By using a drive mechanism equipped with a bidirectional lead screw and a rotating motor, two moving frames can be driven simultaneously by a single power source to move towards or away from each other, thereby achieving lateral synchronous stretching of the bubble film. This simplifies the drive structure and improves adjustment efficiency.

[0016] By setting a structure in which the fixed frame and the inclined side of the second moving block cooperate, the second moving block can be automatically driven to move longitudinally during the lateral movement of the moving frame, so that the stretching in four directions in the lateral and longitudinal directions can be completed simultaneously under the drive of a single motor, realizing the coordinated linkage of multi-directional tension adjustment;

[0017] By incorporating a first and second spring structure, the moving parts can be automatically reset after the stretching action is completed, facilitating the next tension adjustment operation and improving the automation level and ease of use of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 1 An enlarged schematic diagram of structure A in the middle.

[0022] Explanation of the reference numerals in the figure:

[0023] 1. Two-way lead screw; 2. Mounting base; 3. First guide rail; 4. Moving frame; 5. Mounting plate; 6. Leg; 7. First spring; 8. Linear motor; 9. First moving block; 10. Rotary motor; 11. Second spring; 12. Second moving block; 13. Fixed frame; 14. Pressure block; 15. Second guide rail; 16. Connecting rod; 17. Third guide rail; 18. Mounting slot; 19. Mounting bracket. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please seeFigures 1-4 This utility model provides a bubble film tension adjustment mechanism, including a mounting plate 5 and a movable frame 4. The upper outer wall of the mounting plate 5 is provided with a mounting seat 2, which is connected to a bidirectional lead screw 1 through a bearing. A mounting bracket 19 is fixedly connected to the upper outer wall of the mounting plate 5. A rotating motor 10 is fixedly connected to one side of the outer wall of the mounting bracket 19. The output shaft of the rotating motor 10 is fixedly connected to the rotation center of one end of the bidirectional lead screw 1. Movable frames 4 are provided at both ends of the bidirectional lead screw 1. Multiple first guide rails 3 are provided on the upper outer wall of the mounting plate 5. The lower end of the movable frame 4 is located in the first guide rail 3. Two symmetrical mounting grooves 18 are provided on the upper end of the movable frame 4. A first moving block 9 is provided in the mounting groove 18. A third guide rail 17 is provided in the mounting groove 18. The first moving block 9 is located in the third guide rail 17.

[0027] In this embodiment, the drive motor 10 can drive the bidirectional lead screw 1 to rotate. Since the threads at both ends of the bidirectional lead screw 1 are opposite, the two moving frames 4 will move towards or away from each other along the first guide rail 3 at the same time, thereby adjusting the distance between the two moving frames 4. The first moving block 9 can slide along the third guide rail 17 in the mounting groove 18 to provide moving space for subsequent clamping actions.

[0028] Example 2

[0029] This embodiment also includes: a linear motor 8 is fixedly connected to the upper outer wall of the first moving block 9, the output shaft of the linear motor 8 is fixedly connected to the upper end of the connecting rod 16, and the lower end of the connecting rod 16 is fixedly connected to the upper outer wall of the pressure block 14.

[0030] One side of the outer wall of the first movable block 9 is fixedly connected to one end of the first spring 7, and the other end of the first spring 7 is fixedly connected to one side of the outer wall of the mounting groove 18.

[0031] The movable frame 4 is provided with a second guide rail 15, and the second guide rail 15 is provided with a second movable block 12, which is located directly below the corresponding pressure block 14.

[0032] The outer wall of one side of the second moving block 12 is fixedly connected to one end of the second spring 11, and the other end of the second spring 11 is fixedly connected to the outer wall of one side of the second guide rail 15.

[0033] In this embodiment, the linear motor 8 drives the output shaft to extend and retract, transmitting power through the connecting rod 16 to move the pressure block 14 up and down, thereby adjusting the distance between the pressure block 14 and the lower second moving block 12, facilitating the clamping or releasing of the bubble film. When the first moving block 9 moves along the third guide rail 17, the first spring 7 deforms, generating an elastic force. This elastic force provides a push for the first moving block 9 to return to its initial position when no other external force is applied. The second moving block 12 can move along the second guide rail 15. When the pressure block 14 moves downward, the pressure block 14 and the second moving block 12 cooperate, using the friction between them to clamp and fix the corresponding position of the bubble film, preventing the bubble film from falling off during stretching. When the second moving block 12 moves along the second guide rail 15, the second spring 11 deforms, generating an elastic force. When the external force causing the second moving block 12 to move disappears, the elastic force of the second spring 11 can push the second moving block 12 back to directly below the pressure block 14 for the next clamping operation.

[0034] Example 3

[0035] This embodiment also includes: a plurality of fixing brackets 13 are provided on the upper outer wall of the mounting plate 5, and the upper end of the fixing bracket 13 is located above the second guide rail 15 and on one side of the second moving block 12.

[0036] The upper height of the second movable block 12 is the same as the upper height of the fixed frame 13. Both the second movable block 12 and the fixed frame 13 are provided with inclined sides, and the inclined sides of the two are in contact.

[0037] Multiple legs 6 are fixedly connected to the lower outer wall of the mounting plate 5.

[0038] In this embodiment, when the moving frame 4 moves away from the center of the bidirectional lead screw 1, the second moving block 12 will gradually approach the fixed frame 13. During the process of the two sides being in contact, the fixed frame 13 will exert a pushing force on the second moving block 12, pushing the second moving block 12 away along the second guide rail 15. The upper ends of the second moving block 12 and the fixed frame 13 are at the same height and their sides are in contact, ensuring smooth contact between the two. During the movement of the moving frame 4, the fixed frame 13 can apply a stable pushing force to the second moving block 12 through its sides, so that the second moving block 12 can move smoothly along the second guide rail 15, thereby achieving longitudinal stretching of the bubble film.

[0039] Instructions for use: When using this device, place the bubble wrap above the second moving block 12, drive the linear motor 8 to press down the pressure block 14, and the pressure block 14 cooperates with the second moving block 12 to clamp and fix the four corners of the bubble wrap; drive the rotary motor 10 to make the moving frame 4 on the bidirectional lead screw 1 move backward simultaneously, stretching the bubble wrap laterally; when the second moving block 12 inside the moving frame 4 cooperates with the upper end of the fixed frame 13, the moving block is squeezed outward under the action of the inclined sides of the two, at which time the bubble wrap is stretched longitudinally; this device simultaneously completes the stretching of the bubble wrap in four directions under the drive of a single rotary motor 10; multiple legs 6 jointly support the mounting plate 5 and the entire device, so that the device can be stably placed on the working plane, avoiding tipping or displacement due to vibration or other reasons during operation, and ensuring the stability and safety of the device operation.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bubble film tension adjustment mechanism, comprising a mounting plate (5) and a movable frame (4), characterized in that: The mounting plate (5) has a mounting base (2) on its upper outer wall. The mounting base (2) is connected to the bidirectional lead screw (1) through a bearing. The mounting plate (5) has a mounting frame (19) fixedly connected to its upper outer wall. The mounting frame (19) has a rotating motor (10) fixedly connected to one side of its outer wall. The output shaft of the rotating motor (10) is fixedly connected to the rotation center of one end of the bidirectional lead screw (1). The bidirectional lead screw (1) has a moving frame (4) at both ends. The mounting plate (5) has multiple first guide rails (3) on its upper outer wall. The lower end of the moving frame (4) is located in the first guide rail (3). The moving frame (4) has two symmetrical mounting slots (18) on its upper end. The mounting slot (18) has a first moving block (9) in it. The mounting slot (18) has a third guide rail (17) in it. The first moving block (9) is located in the third guide rail (17).

2. The bubble film tension adjusting mechanism according to claim 1, characterized in that: A linear motor (8) is fixedly connected to the upper outer wall of the first moving block (9). The output shaft of the linear motor (8) is fixedly connected to the upper end of the connecting rod (16), and the lower end of the connecting rod (16) is fixedly connected to the upper outer wall of the pressure block (14).

3. The bubble film tension adjusting mechanism according to claim 2, characterized in that: The outer wall of one side of the first movable block (9) is fixedly connected to one end of the first spring (7), and the other end of the first spring (7) is fixedly connected to the outer wall of one side of the mounting groove (18).

4. The bubble film tension adjusting mechanism according to claim 1, characterized in that: The movable frame (4) is provided with a second guide rail (15), and the second guide rail (15) is provided with a second movable block (12), which is located directly below the corresponding pressure block (14).

5. The bubble film tension adjusting mechanism according to claim 4, characterized in that: The outer wall of one side of the second moving block (12) is fixedly connected to one end of the second spring (11), and the other end of the second spring (11) is fixedly connected to the outer wall of one side of the second guide rail (15).

6. The bubble film tension adjusting mechanism according to claim 1, characterized in that: The upper outer wall of the mounting plate (5) is provided with multiple fixing brackets (13), the upper end of the fixing brackets (13) is located above the second guide rail (15) and on one side of the second moving block (12).

7. The bubble film tension adjusting mechanism according to claim 5, characterized in that: The upper height of the second movable block (12) is the same as the upper height of the fixed frame (13). Both the second movable block (12) and the fixed frame (13) are provided with inclined sides, and the inclined sides of the two are in contact.

8. The bubble film tension adjusting mechanism according to claim 1, characterized in that: Multiple legs (6) are fixedly connected to the lower outer wall of the mounting plate (5).

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