Self-sealing bag processing and winding device

Abstract

The utility model discloses a ziplock bag processing and winding device which comprises a bottom plate, two first supports which are oppositely arranged in parallel are fixedly installed on the bottom plate, a driving roller is rotatably connected between the two first supports through bearings, two first cavities and a second cavity are formed in the driving roller respectively, and the first cavities and the second cavities are communicated with the first cavities. A telescopic mechanism is arranged on the driving roller, the telescopic mechanism comprises a rotating shaft rotationally connected to the interior of the driving roller through a bearing, the two ends of the rotating shaft extend into the two first cavities correspondingly and are fixedly connected with two relatively parallel main gears, and a servo motor is fixedly installed on the inner wall of one end of the second cavity. The supporting cylinder is driven by the servo motor to stretch out and draw back so as to flexibly adjust the winding diameter, adaptability is high, the arc-shaped supporting plate can slide on the supporting cylinder along with the thickness change of the self-sealing bags in the winding process, elastic supporting is provided by the elastic mechanism, and adaptability to the self-sealing bags with different thicknesses is good.

Description

Technical Field

[0001] The utility model relates to the technical field of ziplock bag processing, in particular to a ziplock bag processing and rolling device. Background Art

[0002] With the widespread application of plastic products, the demand for ziplock bags in daily life and industrial production is increasing. In the production process of ziplock bags, winding is an important link.

[0003] Traditional ziplock bag winding devices usually have a simple structure, and the diameter of the winding roller is fixed, which makes it difficult to adapt to the winding needs of ziplock bags of different sizes. Moreover, during the winding process, it has poor adaptability to changes in the thickness of the ziplock bags, which can easily lead to loose winding of the ziplock bags or excessive squeezing and damage to the ziplock bags. In addition, the traditional winding device is cumbersome to operate when adjusting the winding diameter, which is inefficient and cannot meet the requirements of modern efficient production.

[0004] Therefore, we propose a ziplock bag processing and winding device. Utility Model Content

[0005] The main purpose of the utility model is to provide a ziplock bag processing and winding device, in order to prevent the ziplock bags from being loosely wound, being damaged by excessive squeezing, and the cumbersome and inefficient operation of adjusting the winding diameter, thereby improving the quality and efficiency of the ziplock bag winding, meeting the requirements of modern efficient production, and effectively solving the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A ziplock bag processing and winding device, comprising a base plate, two relatively parallel first brackets are fixedly mounted on the base plate, a driving roller is rotatably connected between the two first brackets via a bearing, two first cavities and a second cavity are respectively defined in the driving roller, a telescopic mechanism is provided on the driving roller, the telescopic mechanism comprises a rotating shaft rotatably connected to the inside of the driving roller via a bearing, two ends of the rotating shaft respectively extend into the inside of the two first cavities and are fixedly connected to two relatively parallel main gears, a servo motor is fixedly mounted on the inner wall of one end of the second cavity, an output shaft of the servo motor extends into the inside of one of the first cavities and is fixedly connected to one end of the rotating shaft, a plurality of sub-gears are arranged in an annular array in the two first cavities, and the sub-gears are meshed with the main gears;

[0008] One end of the secondary gear is fixedly connected to a threaded rod, the other end of the threaded rod passes through the driving roller and is threadedly connected to a support cylinder, and the end of the support cylinder away from the driving roller is slidably connected to an arcuate support plate, an elastic mechanism is provided between the support cylinder and the arcuate support plate, the outer bottom of the support cylinder is fixedly connected to a limiting block, and the driving roller is fixedly connected to a limiting frame near the outer wall of the support cylinder, and a sliding groove for installing the limiting block is provided inside the limiting frame.

[0009] By adopting the above technical solution, the servo motor is started, and the output shaft of the servo motor drives the rotating shaft to rotate inside the driving roller, and the main gear fixedly connected to the two ends of the rotating shaft in the two first cavities rotates accordingly. Since the main gear is engaged with multiple sub-gears, the rotation of the main gear drives the sub-gears to rotate, and the threaded rod fixed at one end of the sub-gear also rotates. The threaded rod is threadedly connected to the support tube. When the threaded rod rotates, the support tube moves along the axial direction of the threaded rod under the action of the thread. Since the limit block is installed in the slide groove of the limit frame, the cooperation of the limit block and the limit frame limits the rotation of the support tube so that it can only move along the axial direction, thereby realizing the action of the support tube extending outward or retracting inward from the driving roller;

[0010] When the support cylinder is extended to the appropriate position, the ziplock bag is put on the circumference composed of multiple arc-shaped support plates. The external driving device drives the driving roller to rotate. The rotation of the driving roller drives the support cylinder and the arc-shaped support plates to rotate together, thereby realizing the winding operation of the ziplock bag.

[0011] During the winding process, the elastic mechanism plays a role in buffering and adapting to ziplock bags of different thicknesses. When the thickness of the ziplock bags changes, the arc-shaped support plate can slide on the support tube and provide a certain elastic support through the elastic mechanism to ensure that the ziplock bags can be tightly wound on the circumference formed by the arc-shaped support plates, while avoiding excessive extrusion and damage to the ziplock bags.

[0012] Furthermore, the position and quantity of the limiting frame and the supporting tube correspond one to one, and the limiting block is slidably connected to the sliding groove.

[0013] By adopting this technical solution, during the telescopic adjustment phase, when the threaded rod rotates to cause the support tube to move, the one-to-one correspondence between the position and number of the limit racks and the support tubes, and the sliding connection between the limit blocks and the slide slots, ensures that each support tube has an independent limit structure. During operation of the winding device, the support tube can only move along the axial direction of the threaded rod, without rotation or other unstable movements. This directional movement is crucial for accurately adjusting the extension length of the support tube and maintaining a stable support structure during the winding process.

[0014] The sliding fit of the limit block in the slide groove provides additional support and guidance for the support cylinder. When the ziplock bag is rolled up, the tension of the ziplock bag and the rotational force of the drive roller may produce forces in various directions on the support cylinder. The combination of the limit frame and the limit block can effectively resist these forces and prevent the support cylinder from shaking, deflecting or misaligning, thereby enhancing the stability and reliability of the entire rolling device.

[0015] Furthermore, a third cavity is opened in the upper inner portion of the support tube, and the elastic mechanism includes a slider slidably connected to the inside of the third cavity, and a spring is provided between the slider and the inner wall of the third cavity.

[0016] If the ziplock bag becomes thinner, the elastic force of the spring will push the slider to move in the opposite direction, thereby pushing the arc support plate to move outward to adapt to the reduction in the thickness of the ziplock bag, thereby ensuring the stability and reliability of the rolling process.

[0017] Furthermore, a push rod is fixedly connected to the middle of the top end of the slider, and an end of the push rod away from the slider passes through one end of the support tube and is fixedly connected to one side of the arc-shaped support plate.

[0018] By adopting the above technical solution, when the thickness of the ziplock bag changes, the arc-shaped support plate will be correspondingly subjected to pressure or tension from the ziplock bag.

[0019] Furthermore, two relatively parallel second brackets and a third bracket are fixedly mounted on the top of the bottom plate, and the second bracket is located between the first bracket and the third bracket.

[0020] By adopting the above technical solution, the second bracket is located between the first bracket and the third bracket. This position arrangement helps to reasonably distribute the functions of various parts of the device.

[0021] Furthermore, a first auxiliary roller and a second auxiliary roller are rotatably connected between the two second brackets and the third bracket via bearings.

[0022] By adopting the above technical solution, when the ziplock bag is output from the production line and enters the winding device, the first auxiliary roller and the second auxiliary roller play the role of guiding and assisting transmission. The ziplock bag can bypass the first auxiliary roller and the second auxiliary roller in sequence, so that the ziplock bag can enter the driving roller for winding operation in a more stable state. The rotation of the first auxiliary roller and the second auxiliary roller helps to reduce the friction of the ziplock bag during the transmission process and prevent the ziplock bag from wrinkling, twisting and other adverse conditions; at the same time, they can also play a certain tensioning role on the ziplock bag, ensuring that the ziplock bag maintains appropriate tension during the winding process, thereby improving the quality and effect of winding.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The utility model provides a self-sealing bag processing and winding device, which drives the rotating shaft to rotate through a servo motor, drives the main gear and the sub-gear to engage and transmit, and causes the threaded rod to rotate, thereby realizing the movement of the support cylinder extending outward or retracting inward from the driving roller. In this way, the winding diameter can be flexibly adjusted according to the self-sealing bags of different sizes and specifications, and the adaptability is strong.

[0025] (2) The utility model provides a self-sealing bag processing and winding device. During the winding process, when the thickness of the self-sealing bag changes, the arc-shaped support plate can slide on the support tube and provide a certain elastic support through the elastic mechanism, so as to ensure that the self-sealing bag can be tightly wound on the circumference formed by the arc-shaped support plate, while avoiding excessive extrusion damage to the self-sealing bag, and has good adaptability to self-sealing bags of different thicknesses.

[0026] (3) The utility model provides a self-sealing bag processing and winding device. The cooperation of the limit block and the limit frame limits the rotation of the support tube so that it can only move along the axial direction, thereby ensuring the stability and accuracy of the movement of the support tube, thereby being able to accurately adjust the extended length of the support tube, maintain a stable support structure during the winding process, and improve the winding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a ziplock bag processing and rolling device of the utility model.

[0028] Figure 2 This is a cross-sectional view of a driving roller of a ziplock bag processing and winding device of the utility model.

[0029] Figure 3 This is a schematic diagram of the elastic mechanism structure of a ziplock bag processing and winding device of the utility model.

[0030] Figure 4 This is a schematic diagram of the transmission structure of the main gear and sub-gear of a ziplock bag processing and winding device of the utility model.

[0031] In the figure: 1. bottom plate; 2. first bracket; 3. driving roller; 4. telescopic mechanism; 5. rotating shaft; 6. first cavity; 7. main gear; 8. second cavity; 9. servo motor; 10. sub-gear; 11. threaded rod; 12. supporting cylinder; 13. limit block; 14. limit frame; 15. slide groove; 16. elastic mechanism; 17. third cavity; 18. slider; 19. spring; 20. push rod; 21. arc-shaped support plate; 22. second bracket; 23. first auxiliary roller; 24. third bracket; 25. second auxiliary roller. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] In order to prevent the problems of loose rewinding of ziplock bags, damage to ziplock bags due to excessive squeezing, cumbersome and inefficient operation of adjusting rewinding diameter, etc., the quality and efficiency of ziplock bag rewinding can be improved to meet the requirements of modern efficient production, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, a ziplock bag processing and winding device comprises a base plate 1, on which two relatively parallel first brackets 2 are fixedly mounted, a driving roller 3 is rotatably connected between the two first brackets 2 via bearings, two first cavities 6 and a second cavity 8 are respectively provided in the driving roller 3, a telescopic mechanism 4 is provided on the driving roller 3, the telescopic mechanism 4 comprises a rotating shaft 5 rotatably connected to the inside of the driving roller 3 via bearings, both ends of the rotating shaft 5 extend into the inside of the two first cavities 6 respectively, and are fixedly connected to two relatively parallel main gears 7, a servo motor 9 is fixedly mounted on the inner wall of one end of the second cavity 8, the output shaft of the servo motor 9 extends into the inside of one of the first cavities 6 and is fixedly connected to one end of the rotating shaft 5, a plurality of sub-gears 10 are arranged in an annular array in the two first cavities 6, and the sub-gears 10 are meshed with the main gear 7;

[0034] One end of the sub-gear 10 is fixedly connected to a threaded rod 11, and the other end of the threaded rod 11 passes through the driving roller 3 and is threadedly connected to a support tube 12. The end of the support tube 12 away from the driving roller 3 is slidably connected to an arc-shaped support plate 21, and an elastic mechanism 16 is provided between the support tube 12 and the arc-shaped support plate 21. The outer bottom of the support tube 12 is fixedly connected to a limiting block 13, and the driving roller 3 is fixedly connected to a limiting frame 14 near the outer wall of the support tube 12, and a slide groove 15 for installing the limiting block 13 is provided inside the limiting frame 14.

[0035] When in use, the servo motor 9 is started, and the output shaft of the servo motor 9 drives the rotating shaft 5 to rotate inside the driving roller 3, and the main gear 7 fixedly connected to the parts at both ends of the rotating shaft 5 located in the two first cavities 6 rotates accordingly. Since the main gear 7 is engaged with multiple sub-gears 10, the rotation of the main gear 7 drives the sub-gears 10 to rotate, and the threaded rod 11 fixed at one end of the sub-gear 10 also rotates. The threaded rod 11 is threadedly connected to the support tube 12. When the threaded rod 11 rotates, the support tube 12 moves along the axial direction of the threaded rod 11 under the action of the thread. Since the limit block 13 is installed in the slide groove 15 of the limit frame 14, the cooperation of the limit block 13 and the limit frame 14 limits the rotation of the support tube 12, so that it can only move along the axial direction, thereby realizing the action of the support tube 12 extending outward or retracting inward from the driving roller 3;

[0036] When the support cylinder 12 is extended to a suitable position, the ziplock bag is placed on the circumference formed by the multiple arc-shaped support plates 21. The external driving device drives the driving roller 3 to rotate. The rotation of the driving roller 3 drives the support cylinder 12 and the arc-shaped support plates 21 to rotate together, thereby realizing the winding operation of the ziplock bag.

[0037] During the winding process, the elastic mechanism 16 plays a role in buffering and adapting to ziplock bags of different thicknesses. When the thickness of the ziplock bag changes, the arc-shaped support plate 21 can slide on the support tube 12 and provide a certain elastic support through the elastic mechanism 16 to ensure that the ziplock bag can be tightly wound on the circumference formed by the arc-shaped support plate 21, while avoiding excessive extrusion and damage to the ziplock bag.

[0038] For example, Figure 3 、 Figure 4 As shown, the present invention further includes that the position and quantity of the limiting frame 14 correspond to the support tube 12 one by one, and the limiting block 13 is slidably connected to the slide groove 15.

[0039] During operation, when the threaded rod 11 rotates to cause the support tubes 12 to move during the telescopic adjustment phase, the position and number of the limit frames 14 correspond to the support tubes 12, and the limit blocks 13 are slidably connected to the slide slots 15, ensuring that each support tube 12 has an independent limit structure. During operation of the winding device, the support tubes 12 can only move along the axial direction of the threaded rod 11, without rotating or other unstable movements. This directional movement is crucial for accurately adjusting the extension length of the support tubes 12 and maintaining a stable support structure during the winding process.

[0040] The sliding fit of the limit block 13 in the slide groove 15 provides additional support and guidance for the support cylinder 12. When the ziplock bag is rolled up, the tension of the ziplock bag and the rotational force of the drive roller 3 may produce forces in various directions on the support cylinder 12, and the combination of the limit frame 14 and the limit block 13 can effectively resist these forces, preventing the support cylinder 12 from shaking, deflecting or misaligning, thereby enhancing the stability and reliability of the entire rolling device.

[0041] For example, Figure 3 As shown, the present invention further includes a third cavity 17 formed in the upper inner portion of the support tube 12 , the elastic mechanism 16 includes a slider 18 slidably connected to the inside of the third cavity 17 , and a spring 19 is provided between the slider 18 and the inner wall of the third cavity 17 .

[0042] During use, when the ziplock bag is rolled up on the rolling device, the thickness of the ziplock bag may change continuously with the rolling process. At this time, the arc-shaped support plate 21 will be subjected to the pressure caused by the thickness change of the ziplock bag. If the ziplock bag becomes thicker, the arc-shaped support plate 21 will move toward the inside of the support tube 12, and the arc-shaped support plate 21 will push the slider 18 to slide in the third cavity 17 at the upper part of the support tube 12. While the slider 18 slides, the spring 19 is compressed, and the spring 19 generates an elastic reaction force after being compressed. This reaction force is generated by The slider 18 transmits the force to the arc-shaped support plate 21, so that the arc-shaped support plate 21 can adapt to the thickness change of the ziplock bag, always maintain a certain supporting force on the ziplock bag, ensure that the ziplock bag can be tightly wound on the circumference formed by the arc-shaped support plate 21, and avoid damage to the ziplock bag due to excessive squeezing; if the ziplock bag becomes thinner, the elastic force of the spring 19 will push the slider 18 to move in the opposite direction, and then push the arc-shaped support plate 21 to move outward to adapt to the reduction in the thickness of the ziplock bag, thereby ensuring the stability and reliability of the winding process.

[0043] For example, Figure 3 As shown, the present invention also includes a push rod 20 fixedly connected to the middle of the top of the slider 18, and the end of the push rod 20 away from the slider 18 passes through one end of the support tube 12 and is fixedly connected to one side of the arc-shaped support plate 21.

[0044] During use, when the thickness of the ziplock bag changes, the arc-shaped support plate 21 will be subjected to pressure or tension from the ziplock bag accordingly.

[0045] For example, Figure 1 As shown, the present invention further includes that two relatively parallel second brackets 22 and third brackets 24 are fixedly mounted on the top of the base plate 1 , and the second bracket 22 is located between the first bracket 2 and the third bracket 24 .

[0046] When in use, the second bracket 22 is located between the first bracket 2 and the third bracket 24. This position arrangement helps to reasonably distribute the functions of various parts of the device.

[0047] For example, Figure 1 As shown, the present invention further includes a first auxiliary roller 23 and a second auxiliary roller 25 rotatably connected between the two second brackets 22 and the third bracket 24 via bearings.

[0048] During use, when the ziplock bag is output from the production line and enters the winding device, the first auxiliary roller 23 and the second auxiliary roller 25 play a role of guiding and assisting transmission. The ziplock bag can pass around the first auxiliary roller 23 and the second auxiliary roller 25 in turn, so that the ziplock bag can enter the driving roller 3 for winding operation in a more stable state. The rotation of the first auxiliary roller 23 and the second auxiliary roller 25 helps to reduce the friction of the ziplock bag during transmission and prevent the ziplock bag from wrinkling, twisting and other adverse conditions; at the same time, they can also play a certain tensioning role on the ziplock bag, ensuring that the ziplock bag maintains appropriate tension during the winding process, thereby improving the quality and effect of winding.

[0049] It should be noted that the present invention is a ziplock bag processing and winding device. When the servo motor 9 is started, the output shaft of the servo motor 9 drives the rotating shaft 5 to rotate inside the driving roller 3. The main gears 7 at both ends of the rotating shaft 5 rotate accordingly, driving the sub-gear 10 meshing therewith to rotate, thereby causing the threaded rod 11 fixed at one end of the sub-gear 10 to rotate. Since the threaded rod 11 is threadedly connected to the support tube 12, and the limit block 13 is installed in the slide groove 15 of the limit frame 14, the support tube 12 moves along the axial direction of the threaded rod 11 under the action of the thread. According to the size of the ziplock bag and the winding requirements, the support tube 12 is adjusted to extend to a suitable position.

[0050] When the support tube 12 is extended to the appropriate position, the ziplock bag is put on the circumference formed by the multiple arc-shaped support plates 21, and the external driving device is started to drive the driving roller 3 to rotate. The rotation of the driving roller 3 drives the support tube 12 and the arc-shaped support plate 21 to rotate together, and the ziplock bag starts to be rolled up. During the rolling process, the thickness of the ziplock bag may change; when the ziplock bag becomes thicker, the arc-shaped support plate 21 will move toward the inside of the support tube 12, pushing the slider 18 to slide in the third cavity 17 and compressing the spring 19. The elastic reaction force generated by the spring 19 is transmitted to the arc-shaped support plate 21 through the slider 18 and the push rod 20, so that it adapts to the thickness change of the ziplock bag and maintains the supporting force on the ziplock bag; when the ziplock bag becomes thinner, the elastic force of the spring 19 will push the slider 18 to move in the opposite direction, and then push the arc-shaped support plate 21 to move outward to adapt to the decrease in the thickness of the ziplock bag;

[0051] After the ziplock bag is output from the production line, it passes around the first auxiliary roller 23 and the second auxiliary roller 25 in sequence. The first auxiliary roller 23 and the second auxiliary roller 25 play the role of guiding and assisting transmission, reducing the friction of the ziplock bag during transmission, preventing wrinkles, twisting and other undesirable conditions, and playing a certain tensioning role on the ziplock bag to ensure that the ziplock bag maintains appropriate tension during the winding process.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A ziplock bag processing and winding device, comprising a bottom plate (1), characterized in that: Two relatively parallel first brackets (2) are fixedly mounted on the bottom plate (1), a driving roller (3) is rotatably connected between the two first brackets (2) via bearings, two first cavities (6) and a second cavity (8) are respectively provided in the driving roller (3), a telescopic mechanism (4) is provided on the driving roller (3), the telescopic mechanism (4) comprises a rotating shaft (5) rotatably connected to the inside of the driving roller (3) via bearings, two ends of the rotating shaft (5) respectively extend into the inside of the two first cavities (6), and are fixedly connected to two relatively parallel main gears (7), a servo motor (9) is fixedly mounted on the inner wall of one end of the second cavity (8), the output shaft of the servo motor (9) extends into the inside of one of the first cavities (6) and is fixedly connected to one end of the rotating shaft (5), a plurality of sub-gears (10) are arranged in an annular array in the two first cavities (6), and the sub-gears (10) are meshed with the main gear (7); One end of the secondary gear (10) is fixedly connected to a threaded rod (11), the other end of the threaded rod (11) passes through the driving roller (3) and is threadedly connected to a support tube (12), the end of the support tube (12) away from the driving roller (3) is slidably connected to an arc-shaped support plate (21), an elastic mechanism (16) is provided between the support tube (12) and the arc-shaped support plate (21), the outer bottom of the support tube (12) is fixedly connected to a limiting block (13), the driving roller (3) is fixedly connected to a limiting frame (14) near the outer wall of the support tube (12), and a sliding groove (15) for installing the limiting block (13) is provided inside the limiting frame (14).

2. The ziplock bag processing and winding device according to claim 1, characterized in that: The position and quantity of the limiting frame (14) and the supporting tube (12) correspond one to one, and the limiting block (13) is slidably connected to the sliding groove (15).

3. The ziplock bag processing and winding device according to claim 1, characterized in that: A third cavity (17) is provided in the upper inner portion of the support tube (12); the elastic mechanism (16) comprises a slider (18) slidably connected to the interior of the third cavity (17); a spring (19) is provided between the slider (18) and the inner wall of the third cavity (17).

4. The ziplock bag processing and winding device according to claim 3, characterized in that: A push rod (20) is fixedly connected to the middle of the top of the slider (18), and the end of the push rod (20) away from the slider (18) passes through one end of the support tube (12) and is fixedly connected to one side of the arc-shaped support plate (21).

5. The ziplock bag processing and winding device according to claim 1, characterized in that: Two second brackets (22) and a third bracket (24) arranged relatively parallel to each other are fixedly mounted on the top of the bottom plate (1), and the second bracket (22) is located between the first bracket (2) and the third bracket (24).

6. The ziplock bag processing and winding device according to claim 5, characterized in that: A first auxiliary roller (23) and a second auxiliary roller (25) are rotatably connected between the two second brackets (22) and the third bracket (24) via bearings.

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