A heat-shrinking treatment device for suitcase oxford cloth

By combining the design of conveyor belts, sliding frames, and rotating rollers, the problem of high frictional resistance in the heat shrinking process of Oxford cloth rolls is solved, enabling smooth rotation and uniform heat shrinking of Oxford cloth rolls, thus providing high-quality bag materials.

CN224494633UActive Publication Date: 2026-07-14HANGZHOU XINWANG TEXTILE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU XINWANG TEXTILE CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing technologies, pulleys directly apply pressure to the Oxford cloth, resulting in high frictional resistance between the cloth roll and the conveyor belt, making it difficult to rotate smoothly and affecting the heat shrinking effect.

Method used

The design employs a combination of conveyor belt, sliding frame, upper rotating roller, and lower rotating roller. Through the movement of the sliding frame and the drive of the drive components, the Oxford cloth roll is clamped, limited, and rotated smoothly, while working with the heat shrinker for all-around uniform heat shrinking.

Benefits of technology

Ensure consistent heat shrinkability of Oxford cloth rolls, provide qualified bag processing materials, reduce frictional resistance, and improve equipment stability and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of cloth production and discloses a heat shrinkage treatment equipment for luggage oxford cloth, which comprises a base, a conveying belt, a vertical plate, a box body and a heat shrinker. The vertical plate is horizontally slidably provided with sliding frames. The two sliding frames are symmetrically arranged. Two L-shaped plates are horizontally and intervally arranged on one side of the conveying belt close to the sliding frames. The vertical sections of the two L-shaped plates are horizontally rotatably provided with upper rotating rollers at the top ends. One of the L-shaped plates is provided with a driving assembly for driving the upper rotating rollers to rotate. The horizontal sections of the two L-shaped plates are horizontally rotatably provided with lower rotating rollers at the ends away from the vertical sections. The two sliding frames move synchronously to the upper area of the middle part of the conveying belt. In the process, the two lower rotating rollers first contact the lower part of the oxford cloth roll, and the oxford cloth roll is extruded upward by the contact force, so that the oxford cloth roll is separated from the surface of the conveying belt. The sliding frames continue to move to the middle part until the upper rotating rollers also contact the surface of the oxford cloth roll, and the upper and lower rotating rollers clamp and limit the oxford cloth roll.
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Description

Technical Field

[0001] This utility model relates to the field of fabric production technology, and in particular to a heat shrink treatment device for Oxford cloth used in bags. Background Technology

[0002] Bags and luggage are a general term for various bags used to carry things. Bags and luggage are made from a variety of materials, with Oxford cloth being one of them. Oxford cloth is a cotton fabric, also known as Oxford weave, made from fine combed cotton yarn using a weft-heavy plain weave. It can also be made from a blend of polyester-cotton yarn and cotton yarn. It got its name from being popular in the Oxford region of England and later adopted by Oxford University as its uniform material.

[0003] Chinese utility model patent CN212862126U discloses a heat-shrinking device for Oxford cloth, including a base and a belt. A conveyor is mounted on the top of the base, and a main body is fixed to the bottom of the base. A control box is mounted on the bottom of the main body. A heat-shrinking groove is formed inside the main body near the conveyor. Protective pads are fixed to both ends of the heat-shrinking groove. A heat-shrinking device is mounted on the top of the heat-shrinking groove. Control grooves are formed on both sides of the heat-shrinking groove. A cylinder is installed inside the control groove. A fixing plate is fixed to one end of the cylinder. A first connecting rod and a pulley are provided on the fixing plate. The movement of the fixing plate drives the pulley to squeeze the Oxford cloth, and the rotation of the pulley drives the Oxford cloth to rotate.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the pulleys of the aforementioned devices directly apply pressure to the Oxford cloth, which cannot reduce the frictional resistance between the cloth roll and the conveyor belt. During the rotation of the cloth roll under force, the cloth roll is prone to being difficult to rotate. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a heat-shrinking treatment device for Oxford cloth used in bags.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heat shrinking treatment device for Oxford cloth in bags, comprising a base, a conveyor belt for conveying Oxford cloth rolls is embedded in the surface of the base, two vertical plates are spaced apart on the top surface of the base, a box is provided at the upper end of the two vertical plates, a heat shrinker is provided on the bottom surface of the box directly above the conveyor belt, a sliding frame is horizontally slidably arranged on the vertical plates, the two sliding frames are symmetrically arranged, two L-shaped plates are horizontally spaced apart on the side of the sliding frame near the conveyor belt, the vertical section of the L-shaped plate is located above the horizontal section, an upper rotating roller is horizontally rotatably arranged between the top ends of the vertical sections of the two L-shaped plates, a driving component for driving the upper rotating roller is provided on one of the L-shaped plates, and a lower rotating roller is horizontally rotatably arranged between the ends of the horizontal sections of the two L-shaped plates away from the vertical sections.

[0007] By employing the above technical solution, a conveyor belt, heat shrinker, and sliding frames are installed. The conveyor belt transports the Oxford cloth roll to be processed to the working area between two sliding frames. Subsequently, the two sliding frames move synchronously towards the upper center of the conveyor belt. During this process, the two lower rotating rollers first contact the lower part of the Oxford cloth roll, using the contact force to squeeze the Oxford cloth roll upwards, causing it to detach from the conveyor belt surface. The sliding frames continue to move towards the center until the upper rotating roller also contacts the surface of the Oxford cloth roll, forming a clamping and limiting position for the Oxford cloth roll by the upper and lower rotating rollers. Afterwards, the drive assembly drives the upper rotating roller to rotate, and the friction between the upper rotating roller and the Oxford cloth roll causes the Oxford cloth roll to rotate synchronously without contacting the conveyor belt, ensuring smooth rotation. The heat shrinker on the bottom of the case performs all-round and uniform heat shrinking treatment on the rotating Oxford cloth roll, ensuring consistent heat shrinking effect and providing qualified Oxford cloth material for subsequent bag processing.

[0008] Furthermore, an extension plate is provided on the side of the horizontal section of the L-shaped plate away from the vertical section, and a buffer roller is rotatably provided between the two extension plates.

[0009] Furthermore, the bottom of the buffer roller is flush with the bottom of the lower rotating roller, and the diameter of the buffer roller is smaller than the diameter of the lower rotating roller.

[0010] By adopting the above technical solution, when the sliding frame slides towards the upper middle area of ​​the conveyor belt, the buffer roller is positioned lower and can contact the lower part of the Oxford cloth roll before the lower rotating roller. The lower contact position creates a better force angle, which makes it easier to squeeze the Oxford cloth roll upward and allow it to leave the conveyor belt surface in advance. This provides convenience for the subsequent lower rotating roller to further clamp and limit the movement, resulting in a more efficient and stable squeezing effect.

[0011] Furthermore, the lower rotating roller is adjacent to the upper surface of the conveyor belt, and the lower side of the upper rotating roller is higher than the center line of the Oxford cloth roll.

[0012] By adopting the above technical solution, the lower side of the upper rotating roller is higher than the center line of the Oxford cloth roll. This position setting allows the upper rotating roller to form a more reasonable clamping angle when it contacts the Oxford cloth roll, ensuring stable clamping.

[0013] Furthermore, the upright plate has four rectangular arrayed sliding holes, the sliding frame includes sliding rods slidably disposed in the sliding holes, and the four sliding rods are located at one end of the inner side of the upright plate and share a movable plate, the L-shaped plate being disposed on the movable plate.

[0014] Furthermore, each of the two upright plates is horizontally equipped with a drive cylinder on a side away from each other, and the piston rod of the drive cylinder passes through the upright plate and is connected to the corresponding moving plate.

[0015] By adopting the above technical solution, the movement of the moving plate can be controlled by the extension and retraction of the driving cylinder, so that the two sliding frames can move synchronously to the upper part of the conveyor belt or reset synchronously to both sides, ensuring that the clamping force of the upper and lower rotating rollers on the Oxford cloth roll is uniform and stable.

[0016] Furthermore, the drive assembly includes a drive motor horizontally mounted on the L-shaped plate, the output shaft of the drive motor passing through the L-shaped plate and having a drive sprocket mounted thereon, one end of the upper rotating roller passing through the L-shaped plate and having a driven sprocket mounted thereon, the driven sprocket and the drive sprocket being connected by a chain.

[0017] By adopting the above technical solution, a drive sprocket, a driven sprocket, and a chain are set up. The power provided by the drive motor is converted into the rotational power of the upper rotating roller through the sequential transmission of the drive sprocket, chain, and driven sprocket.

[0018] Furthermore, the drive motor is located at the corner of the L-shaped plate.

[0019] In summary, this utility model has the following beneficial effects: In this application, a conveyor belt, a heat shrinker, and sliding frames are provided. The conveyor belt transports the Oxford cloth roll to be processed to the working area between two sliding frames. Subsequently, the two sliding frames move synchronously towards the upper part of the conveyor belt. During this process, the two lower rotating rollers first contact the lower part of the Oxford cloth roll, using the contact force to squeeze the Oxford cloth roll upwards, causing it to detach from the conveyor belt surface. The sliding frames continue to move towards the center until the upper rotating roller also contacts the surface of the Oxford cloth roll, forming a clamping and limiting effect between the upper and lower rotating rollers on the Oxford cloth roll. Afterwards, the drive assembly drives the upper rotating roller to rotate, and the friction between the upper rotating roller and the Oxford cloth roll drives the Oxford cloth roll to rotate synchronously, ensuring smooth rotation without contact with the conveyor belt. Combined with the heat shrinker on the bottom of the case, the rotating Oxford cloth roll undergoes comprehensive and uniform heat shrinking treatment, ensuring consistent heat shrinkage and providing qualified Oxford cloth material for subsequent bag processing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the Oxford cloth roll and the conveyor belt in an embodiment of this utility model when they are not in contact;

[0021] Figure 2 This is a schematic diagram of the structure of the Oxford cloth roll in contact with the conveyor belt according to an embodiment of the present invention;

[0022] Figure 3 This is a structural schematic diagram of the sliding frame and drive assembly according to an embodiment of the present invention.

[0023] In the diagram: 1. Oxford cloth roll; 10. Base; 11. Conveyor belt; 12. Vertical plate; 13. Box; 14. Heat shrinker; 15. Drive cylinder; 20. Sliding frame; 21. Slide rod; 22. Moving plate; 30. L-shaped plate; 31. Upper rotating roller; 32. Lower rotating roller; 40. Drive assembly; 41. Drive motor; 42. Drive sprocket; 43. Driven sprocket; 44. Chain; 50. Extension plate; 51. Buffer roller. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-3As shown in the illustration, this application discloses a heat-shrinking device for Oxford cloth in bags, including a base 10, a heat shrinker 14, and a drive assembly 40. A conveyor belt 11 for transporting Oxford cloth rolls 1 is embedded in the surface of the base 10. Two upright plates 12 are spaced apart on the top surface of the base 10, and a housing 13 is shared at the top of the two upright plates 12. The heat shrinker 14 is located on the bottom surface of the housing 13, directly above the conveyor belt 11. The heat shrinker 14 generates heat to shrink the cloth roll below it. The conveyor belt 11 and the heat shrinker 14 are existing technologies and will not be described in detail here. Sliding frames 20 are horizontally slidably mounted on the upright plates 12, with two sliding frames 20 arranged symmetrically. The conveyor belt 11 transports the Oxford cloth roll 1 to be processed to the working area between the two sliding frames 20. Two L-shaped plates 30 are horizontally spaced near the conveyor belt side of the sliding frame 20. The vertical section of the L-shaped plate 30 is located above the horizontal section. An upper rotating roller 31 is horizontally rotatably mounted between the top ends of the vertical sections of the two L-shaped plates 30. A drive assembly 40 is mounted on one of the L-shaped plates 30 to drive the upper rotating roller 31 to rotate. A lower rotating roller 32 is horizontally rotatably mounted between the ends of the horizontal sections of the two L-shaped plates 30 away from the vertical sections. The two sliding frames 20 move synchronously towards the upper part of the middle of the conveyor belt 11. During this process, the two lower rotating rollers 32 first contact the lower part of the Oxford cloth roll 1, and use the contact force to squeeze the Oxford cloth roll 1 upward, causing the Oxford cloth roll 1 to detach from the surface of the conveyor belt 11. The sliding frames 20 continue to move towards the middle until the upper rotating roller 31 also contacts the surface of the Oxford cloth roll 1, forming a clamping and limiting position of the Oxford cloth roll 1 by the upper and lower rotating rollers 32. Subsequently, the drive assembly 40 drives the upper rotating roller 31 to rotate. The friction between the upper rotating roller 31 and the Oxford cloth roll 1 causes the Oxford cloth roll 1 to rotate synchronously. The Oxford cloth roll 1 does not contact the conveyor belt 11, and the rotation is smooth. In conjunction with the heat shrinker 14 on the bottom surface of the box 13, the rotating Oxford cloth roll 1 is subjected to all-round and uniform heat shrinking treatment to ensure that the heat shrinking effect of the Oxford cloth roll 1 is consistent, providing qualified Oxford cloth material for subsequent bag processing.

[0026] Specifically, the upright plate 12 has four rectangular arrayed sliding holes. The sliding frame 20 includes sliding rods 21 slidably disposed within the sliding holes. A movable plate 22 is connected to one end of the four sliding rods 21 on the inner side of the upright plate 12. An L-shaped plate 30 is disposed on the movable plate 22. The four rectangular array of sliding holes ensures that the sliding rods 21 maintain horizontal movement during sliding, preventing the sliding frame 20 from tilting or shifting. This ensures that the movable plate 22 drives the L-shaped plate 30, the upper rotating roller 31, and the lower rotating roller 32 to move towards the upper part of the conveyor belt 11, ensuring that the upper rotating roller 31 and the lower rotating roller 32 accurately contact the Oxford cloth roll 1. Simultaneously, the design of the four sliding rods 21 connecting to the movable plate 22 ensures that the movable plate 22 is subjected to uniform force, improving the overall structural stability and load-bearing capacity of the sliding frame 20. This better copes with the forces generated when clamping the Oxford cloth roll 1, extending the service life of the equipment. Two vertical plates 12 are each horizontally mounted on a side away from each other, with a drive cylinder 15. The piston rod of the drive cylinder 15 passes through the vertical plate 12 and connects to the corresponding moving plate 22. By extending or retracting the drive cylinder 15, the movement of the moving plate 22 can be controlled, so that the two sliding frames 20 can move synchronously to the upper part of the middle of the conveyor belt 11 or synchronously reset to both sides, ensuring that the clamping force of the upper rotating roller 31 and the lower rotating roller 32 on the Oxford cloth roll 1 is uniform and stable.

[0027] In this configuration, the lower rotating roller 32 is positioned near the upper surface of the conveyor belt 11 but does not contact it. The lower side of the upper rotating roller 31 is higher than the centerline of the Oxford cloth roll 1. This prevents friction and wear caused by the lower rotating roller 32 contacting the surface of the conveyor belt 11, extending the service life of both the conveyor belt 11 and the lower rotating roller 32, while also preventing them from contacting each other and affecting the normal conveying speed of the conveyor belt 11. The lower side of the upper rotating roller 31 being higher than the centerline of the Oxford cloth roll 1 allows for a more reasonable clamping angle when it contacts the Oxford cloth roll 1, ensuring stable clamping. An extension plate 50 is provided on the horizontal section of the L-shaped plate 30 away from the vertical section, and a buffer roller 51 is rotatably positioned between the two extension plates 50. The bottom of the buffer roller 51 is flush with the bottom of the lower rotating roller 32, and the diameter of the buffer roller 51 is smaller than the diameter of the lower rotating roller 32. When the sliding frame 20 slides towards the upper part of the middle of the conveyor belt 11, because the buffer roller 51 is lower, it can contact the lower part of the Oxford cloth roll 1 before the lower rotating roller 32. With the help of the lower contact position, a better force angle is formed, which can more easily squeeze the Oxford cloth roll 1 upward and let the Oxford cloth roll 1 leave the surface of the conveyor belt 11 in advance. This provides convenience for the lower rotating roller 32 to further clamp and limit it, and the squeezing effect is more efficient and stable.

[0028] In its specific configuration, the drive assembly 40 includes a drive motor 41 horizontally mounted on the L-shaped plate 30. The output shaft of the drive motor 41 passes through the L-shaped plate 30 and is fitted with a drive sprocket 42. One end of the upper rotating roller 31 passes through the L-shaped plate 30 and is fitted with a driven sprocket 43. The driven sprocket 43 and the drive sprocket 42 are connected by a chain 44. The power provided by the drive motor 41 is converted into the rotational power of the upper rotating roller 31 through the sequential transmission of the drive sprocket 42, chain 44, and driven sprocket 43. The chain 44 transmission features high transmission efficiency, accurate transmission ratio, and strong load-bearing capacity, ensuring stable speed and sufficient power when the upper rotating roller 31 drives the Oxford cloth roll 1, avoiding slippage and speed fluctuations, and ensuring uniform rotation of the Oxford cloth roll 1, thereby enabling the heat shrinker 14 to uniformly heat and shrink the Oxford cloth roll 1. The drive motor 41 is located at the corner of the L-shaped plate 30. The drive motor 41 is a high-temperature resistant motor. Furthermore, positioning the drive motor 41 at the corner of the L-shaped plate 30, which is relatively low, effectively reduces the impact of the heat generated by the heat shrinker 14 during operation on the drive motor 41. The heat shrinker 14 releases a significant amount of heat during the heat shrinking process of the Oxford cloth roll 1. Since the drive motor 41 is installed at the lower corner of the L-shaped plate 30, away from the high-temperature area above the heat shrinker 14, the ambient temperature around the drive motor 41 is reduced. This prevents the drive motor 41 from aging prematurely, experiencing performance degradation, or malfunctioning due to prolonged exposure to high temperatures, thus extending its service life and ensuring the stable operation of the drive assembly 40. This, in turn, ensures that the upper rotating roller 31 can continuously and stably drive the Oxford cloth roll 1, without affecting the normal operation of the entire heat shrinking process.

[0029] The operating principle of the heat shrinking equipment for Oxford cloth in this embodiment is as follows: The operator starts the conveyor belt 11 to transport the Oxford cloth roll 1 between two sliding frames 20. Subsequently, two drive cylinders 15 extend and retract synchronously, pushing the moving plate 22 towards the upper part of the middle of the conveyor belt 11. During this process, the buffer roller 51 first contacts the lower part of the Oxford cloth roll 1, using the contact force to squeeze the Oxford cloth roll 1 upwards and detach it from the surface of the conveyor belt 11. The sliding frame 20 continues to move until the lower rotating roller 32 on the two L-shaped plates 30 contacts the lower part of the Oxford cloth roll 1, and the upper rotating roller 31 contacts the upper part of the Oxford cloth roll 1, forming a clamping and limiting position on the Oxford cloth roll 1. Next, the drive motor 41 is started, and its power is transmitted to the upper rotating roller 31 via the drive sprocket 42, chain 44, and driven sprocket 43, causing the upper rotating roller 31 to rotate. The upper rotating roller 31 drives the Oxford cloth roll 1 to rotate synchronously and smoothly through the friction between itself and the Oxford cloth roll 1. Finally, the heat shrinker 14 is activated. The heat shrinker 14 generates heat to perform all-round uniform heat shrinking on the rotating Oxford cloth roll 1. After the heat shrinking is completed, the drive cylinder 15 drives the sliding frame 20 to reset to both sides, releasing the clamp on the Oxford cloth roll 1. The conveyor belt 11 transports the processed Oxford cloth roll 1 backward.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A heat-shrinking treatment apparatus for Oxford cloth used in bags, comprising a base (10), characterized in that: The base (10) has a conveyor belt (11) embedded in its surface for conveying Oxford cloth rolls (1). Two upright plates (12) are spaced apart on the top surface of the base (10). A housing (13) is shared at the top of the two upright plates (12). A heat shrinker (14) is positioned on the bottom surface of the housing (13) directly above the conveyor belt (11). Sliding frames (20) are horizontally slidably mounted on the upright plates (12). The two sliding frames (20) are arranged symmetrically. Two L-shaped plates (30) are horizontally spaced on the side of the frame (20) near the transmission belt. The vertical section of the L-shaped plate (30) is located above the horizontal section. An upper rotating roller (31) is horizontally rotatably arranged between the top ends of the vertical sections of the two L-shaped plates (30). A driving assembly (40) for driving the upper rotating roller (31) is provided on one of the L-shaped plates (30). A lower rotating roller (32) is horizontally rotatably arranged between the ends of the horizontal sections of the two L-shaped plates (30) away from the vertical sections.

2. The heat shrink treatment equipment for Oxford cloth in bags according to claim 1, characterized in that: An extension plate (50) is provided on the side of the horizontal section of the L-shaped plate (30) away from the vertical section, and a buffer roller (51) is rotatably provided between the two extension plates (50).

3. The heat shrink treatment equipment for Oxford cloth in bags according to claim 2, characterized in that: The bottom of the buffer roller (51) is flush with the bottom of the lower rotating roller (32), and the diameter of the buffer roller (51) is smaller than the diameter of the lower rotating roller (32).

4. The heat shrink treatment equipment for Oxford cloth in bags according to claim 1, characterized in that: The lower rotating roller (32) is adjacent to the upper surface of the conveyor belt (11), and the lower side of the upper rotating roller (31) is higher than the center line of the Oxford cloth roll (1).

5. The heat shrink treatment equipment for Oxford cloth in bags according to claim 1, characterized in that: The upright plate (12) has four rectangular arrayed sliding holes. The sliding frame (20) includes sliding rods (21) that are slidably disposed in the sliding holes. The four sliding rods (21) are located at one end of the inner side of the upright plate (12) and share a moving plate (22). The L-shaped plate (30) is disposed on the moving plate (22).

6. The heat shrink treatment equipment for Oxford cloth in bags according to claim 5, characterized in that: Two vertical plates (12) are each horizontally provided with a driving cylinder (15) on one side away from each other. The piston rod of the driving cylinder (15) passes through the vertical plate (12) and is connected to the corresponding moving plate (22).

7. The heat shrink treatment equipment for Oxford cloth in bags according to claim 1, characterized in that: The drive assembly (40) includes a drive motor (41) horizontally mounted on an L-shaped plate (30). The output shaft of the drive motor (41) passes through the L-shaped plate (30) and is equipped with a drive sprocket (42). One end of the upper rotating roller (31) passes through the L-shaped plate (30) and is fitted with a driven sprocket (43). The driven sprocket (43) and the drive sprocket (42) are connected by a chain (44).

8. The heat shrink treatment equipment for Oxford cloth in bags according to claim 7, characterized in that: The drive motor (41) is located at the corner of the L-shaped plate (30).