Dyeing device for production of round macromolecular polyethylene lifting belt

By adjusting and rotating the component design, efficient dyeing of high molecular weight polyethylene circular lifting slings was achieved, solving the problems of poor dyeing effect and low efficiency in existing devices, and improving the coloring effect and operation efficiency of lifting slings.

CN224092159UActive Publication Date: 2026-04-07TAIZHOU AOBANNI WEAVING CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing dyeing equipment for circular lifting slings made of high molecular weight polyethylene has problems with poor dyeing effect and low operating efficiency.

Method used

The system uses an adjustment component and a rotation component together. A servo motor drives a rotating pull rod and an electric push rod to position and press the lifting belt. Combined with the drive motor driving the rotation of the ring frame and the rotating frame, the lifting belt can jump up and down and vibrate in the dyeing box, thereby improving dyeing efficiency.

Benefits of technology

It improves the dyeing efficiency and effect of high molecular weight polyethylene circular lifting slings, ensures uniform contact of the lifting slings in the dye solution, avoids slippage and wear, and improves the overall dyeing quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224092159U_ABST
    Figure CN224092159U_ABST
Patent Text Reader

Abstract

The utility model relates to a dyeing device for producing a round macromolecular polyethylene lifting belt, which belongs to the technical field of lifting belt dyeing and comprises a dyeing box, adjusting components for adjusting the position of the lifting belt are arranged on the left side and the right side of the dyeing box, and a rotating component for pressing the lifting belt is arranged at the top of the dyeing box. The adjusting assembly comprises a servo motor fixed to the side wall of the dyeing box, and a rotating pull rod is fixed to the side face of an output shaft of the servo motor. According to the dyeing device for production of the round macromolecular polyethylene lifting belt, the round lifting belt needing to be dyed on the front face is pulled into the dyeing box through the adjusting assembly, and the rotating assembly drives an annular frame to continuously drive the rotating frame to conduct high-end change in the continuous rotating process; the annular frame is driven by the driving fluted disc to rotate, so that the belt pressing roller continuously pushes the lifting belt to jump up and down in the dyeing box in the rotating process, and therefore the coloring efficiency and the dyeing effect of the lifting belt are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of dyeing technology for lifting slings, specifically a dyeing device for producing circular lifting slings made of high molecular weight polyethylene. Background Technology

[0002] High-molecular-weight polyethylene (UHMWPE) round lifting slings are high-performance lifting tools made of UHMWPE fiber as the core material. They have significant advantages such as lightweight, high strength, and resistance to extreme environments. They are widely used in industrial lifting, port logistics, wind power equipment installation and other fields. Industrial lifting slings are usually dyed to distinguish load levels, facilitate identification, or meet the needs of specific environments, such as UV resistance.

[0003] Chinese Patent No. CN222730119U discloses a universal environmentally friendly and energy-saving dyeing machine with electrical sling, relating to the field of dyeing machine technology. This utility model includes a support frame, a first connecting roller evenly rotatably inserted on one side of the support frame, a dyeing box fixedly connected to the bottom of the support frame, a rotating roller rotatably inserted on the inner wall of the dyeing box, a second connecting roller rotatably inserted on the inner wall of the support frame, a heating box at the bottom of the support frame, a limit roller rotatably installed inside the heating box, and a third connecting roller rotatably inserted on the inner wall of one side of the support frame.

[0004] This utility model restricts the lifting belt to the middle of the first connecting roller, preventing the lifting belt from contacting the support frame and affecting its movement. Although this structure ensures the efficiency of the lifting belt movement, the lifting belt passes straight through the dyeing box, which can easily lead to poor dyeing effect and fail to achieve the expected purpose. Therefore, a dyeing device for producing high molecular weight polyethylene circular lifting belts is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dyeing device for the production of circular lifting slings made of high molecular weight polyethylene (HMWPE), which has the advantages of high dyeing efficiency and good coloring effect, and solves the problems of poor coloring effect and low work efficiency in the dyeing process of circular lifting slings made of HMWPE.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dyeing device for producing circular lifting belts of high molecular weight polyethylene, including a dyeing box, wherein adjustment components for adjusting the position of the lifting belt are provided on both the left and right sides of the dyeing box, and a rotating component for pressing the lifting belt is provided on the top of the dyeing box.

[0007] The adjustment assembly includes a servo motor fixed to the side wall of the dyeing box, a rotating pull rod fixed to the side of the output shaft of the servo motor, a support spring fixed to the inner side of the rotating pull rod, a limit slider fixed to the top of the support spring, and electric push rods fixed to both ends of the back of the dyeing box, with a limit pressure plate fixed to the top side of the electric push rod.

[0008] The rotating assembly includes two support frames fixed to the top of the front and rear ends of the dyeing box. A drive motor is fixed to the back of the rear support frame. A ring frame is fixed to the side of the output shaft of the drive motor. Three rotating frames are rotatably connected to the front of the ring frame. Four pressure rollers for dynamically pressing the lifting belt are fixed to the front of the rotating frame. A connecting rod is provided between the two support frames. A drive gear is fixed to the outside of the connecting rod.

[0009] Furthermore, the front of the dyeing box is provided with a U-shaped opening groove for the hoisting belt to enter. The limiting pressure plate is located inside the opening groove. The bottom of the limiting pressure plate and the bottom wall surface of the opening groove are provided with several arc-shaped slots to limit the hoisting belt.

[0010] Furthermore, the rotating pull rod has an L-shaped structure and an internal limiting groove that extends through both the front and rear sides. The bottom of the support spring is fixedly installed to the bottom wall of the limiting groove.

[0011] Furthermore, the limiting slider is longitudinally embedded inside the limiting groove and slidably connected to the rotating pull rod, and the top of the limiting slider is provided with an inclined surface for sliding with the hoisting belt.

[0012] Furthermore, the output shaft of the drive motor passes through the support frame at the rear of the dyeing box to the opposite side of the two support frames, and the annular frame is located on the front of the rear support frame, and the front of the annular frame is rotatably connected to the connecting rod.

[0013] Furthermore, the rotating frame has a cross-shaped structure and a rotating shaft that is inserted into the ring frame is fixed on its back. A driven gear for driving the rotating frame to rotate is fixed on the outside of the rotating shaft.

[0014] Furthermore, the end of the pressure roller away from the rotating frame is provided with an intercepting diagonal bar for preventing the lifting belt from entering the inner side of the pressure roller, and the connecting rod is fixedly installed with the support frame on the left side.

[0015] Furthermore, the drive gear is located outside the connecting rod between the rotating frame and the ring frame, and the drive gear meshes with the driven gear.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. This dyeing device for producing circular lifting slings of high molecular weight polyethylene uses an adjusting component to pull the circular lifting sling to be dyed from the front into the dyeing box. As the rotating component rotates continuously, it drives the ring frame to change its position. At the same time, the ring frame rotates under the drive of the drive toothed disc, causing the pressure roller to continuously push the lifting sling to jump up and down in the dyeing box during the rotation, thereby improving the dyeing efficiency and dyeing effect of the lifting sling.

[0018] 2. The dyeing device for producing high molecular weight polyethylene circular hoisting belts uses a servo motor to drive a rotating pull rod to pull the hoisting belt being conveyed into the opening slot of the dyeing box. The electric push rod retracts, driving the limiting pressure plate to push the hoisting belt brought in by the rotating pull rod into the arc-shaped slot inside the opening slot, so that the hoisting belt continues to be conveyed along a predetermined path inside the dyeing box. Attached Figure Description

[0019] Figure 1 This is a front perspective view of the present utility model;

[0020] Figure 2 This is a perspective view of the adjustment components of the present invention, including the servo motor and the rotating rod.

[0021] Figure 3 This is a side perspective view of the present invention;

[0022] Figure 4 This is a perspective view of the rotating frame, pressure roller, and driven gear of this utility model.

[0023] In the diagram: 1. Dyeing box; 11. Opening slot; 2. Adjustment component; 21. Servo motor; 22. Rotating pull rod; 221. Limiting slide; 23. Support spring; 24. Limiting slider; 25. Electric push rod; 26. Limiting pressure plate; 3. Rotating component; 31. Support frame; 32. Drive motor; 33. Ring frame; 34. Rotating frame; 35. Pressure roller; 36. Connecting rod; 37. Drive gear; 38. Driven gear. 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] Please see Figure 1The dyeing device for producing a circular lifting belt of high molecular weight polyethylene in this embodiment includes a dyeing box 1. Adjustment components 2 for adjusting the position of the lifting belt are provided on both the left and right sides of the dyeing box 1, and a rotating component 3 for pressing the lifting belt is provided on the top of the dyeing box 1.

[0026] Please see Figures 1 to 3 In this embodiment, the adjustment component 2 includes a servo motor 21 fixed to the side wall of the dyeing box 1. A rotating pull rod 22 is fixed to the side of the output shaft of the servo motor 21. A support spring 23 is fixed to the inner side of the rotating pull rod 22. A limit slider 24 is fixed to the top of the support spring 23. Electric push rods 25 are fixed to both ends of the back of the dyeing box 1. A limit pressure plate 26 is fixed to the top side of the electric push rod 25.

[0027] In this embodiment, the front of the dyeing box 1 is provided with a U-shaped opening groove 11 for the hoisting belt to enter. The limiting pressure plate 26 is located inside the opening groove 11. The bottom of the limiting pressure plate 26 and the bottom wall surface of the opening groove 11 are provided with a number of arc-shaped slots to limit the hoisting belt. The hoisting belt is limited by the arc-shaped slots to prevent the hoisting belt from sliding during the dyeing process and interfering with each other.

[0028] It should be noted that rollers are installed inside the arc-shaped groove to reduce the resistance of the lifting sling as it moves within the groove, while also preventing wear on the surface of the lifting sling and thus reducing the dyeing quality.

[0029] The rotating pull rod 22 has an L-shaped structure and an internal limiting groove 221 that runs through both the front and rear sides. The bottom of the support spring 23 is fixedly installed to the inner bottom wall of the limiting groove 221. The support spring 23 supports the limiting slider 24, so that the limiting slider 24 and the rotating pull rod 22 form a clamping structure, clamping the lifting belt and sending it into the opening slot 11. The longitudinal direction of the limiting slider 24 is embedded in the limiting groove 221 and is slidably connected to the rotating pull rod 22. The top of the limiting slider 24 is provided with an inclined surface for the sliding of the lifting belt. When the electric push rod 25 drives the limiting pressure plate 26 to fall, it squeezes the lifting belt and the limiting slider 24 to move downward. Because the top of the limiting slider 24 is provided with an inclined surface, the lifting belt slides smoothly down the inclined surface into the arc-shaped groove at the bottom of the opening slot 11 under the squeezing action.

[0030] It should be noted that when using this device to dye the lifting belt, a lifting belt conveyor device must be used in conjunction. The conveyor device stretches both ends of the lifting belt being dyed, and the rotation of the rotating rod 22 hooks the lifting belt being conveyed into the opening slot 11 of the dyeing box 1, without affecting the continuous conveying of the lifting belt.

[0031] Please see Figures 3 to 4In this embodiment, the rotating component 3 includes two support frames 31 fixed to the top of the front and rear ends of the dyeing box 1. A drive motor 32 is fixed to the back of the rear support frame 31. A ring frame 33 is fixed to the side of the output shaft of the drive motor 32. Three rotating frames 34 are rotatably connected to the front of the ring frame 33. Four pressure rollers 35 for dynamically pressing the lifting belt are fixed to the front of the rotating frame 34. A connecting rod 36 is provided between the two support frames 31. A drive gear plate 37 is fixed to the outside of the connecting rod 36.

[0032] The output shaft of the drive motor 32 passes through the support frame 31 on the rear side of the dyeing box 1 to the opposite side of the two support frames 31. The ring frame 33 is located on the front side of the rear support frame 31, and the front side of the ring frame 33 is rotatably connected to the connecting rod 36.

[0033] The rotating frame 34 has a cross-shaped structure and a rotating shaft that is inserted into the ring frame 33 is fixed on its back. A driven gear 38 for driving the rotating frame 34 to rotate is fixed on the outside of the rotating shaft.

[0034] The end of the pressure roller 35 away from the rotating frame 34 is provided with an intercepting diagonal bar for intercepting the hoisting belt from entering the inner side of the pressure roller 35. By setting the intercepting diagonal bar, it is prevented that when the hoisting belt enters the inside of the dyeing box 1, it enters the gap between the same pressure roller 35 and interferes with the rotation of the rotating frame 34 and the pressure roller 35.

[0035] The connecting rod 36 is fixedly installed with the support frame 31 on the left side. The drive gear 37 is located outside the connecting rod 36 between the rotating frame 34 and the ring frame 33, and the drive gear 37 meshes with the driven gear 38.

[0036] It should be noted that during the rotation of the rotating frame 34, different pressure rollers 35 will be driven into the dye liquor. During the rotation of the ring frame 33, at least one pressure roller 35 of the rotating frame 34 will always be below the surface of the dye liquor, so that although the height of the lifting belt will change during the movement, the lowest position of the lifting belt will always be submerged in the dye liquor.

[0037] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0038] The working principle of the above embodiments is as follows:

[0039] By activating the servo motors 21 inside the two sets of adjustment components 2 to rotate clockwise synchronously, the rotating pull rod 22 pulls the conveying hoisting belt on the front of the device into the opening slot 11. As the hoisting belt enters the opening slot 11, it encounters the pressure roller 35 at its lowest position. The intercepting diagonal bar on the side of the pressure roller 35 pushes the moving hoisting belt into the dye solution. When the rotating pull rod 22 rotates to a specified angle, the hoisting belt inside the opening slot 11 is positioned above a certain arc-shaped groove. By controlling the electric push rod 25 to retract, the height of the limiting pressure plate 26 is lowered. The limiting pressure plate 26 squeezes the hoisting belt and the limiting slider 24 to fall. When the hoisting belt is embedded in the arc-shaped groove at the bottom of the opening slot 11, the servo motor 21 is controlled to rotate in the opposite direction, thereby causing the rotating pull rod 22 to flip, thus successfully keeping the hoisting belt in the arc. The conveyor continues to transport materials inside the shaped groove, and then the drive motor 32 is started to rotate, driving the ring frame 33 to rotate synchronously. The rotation of the ring frame 33 causes the rotating frame 34 to rotate. Since the connecting rod 36 and the support frame 31 at the front end of the dyeing box 1 are fixed, the drive gear 37 cannot rotate. The meshing of the driven gear 38 and the drive gear 37 causes the rotating frame 34 to rotate synchronously, thereby continuously driving the pressure roller 35 to push the lifting belt repeatedly into the dye liquor for dyeing. As the height of the pressure roller 35 changes continuously during rotation, the depth to which the pressure roller 35 pushes the lifting belt into the dye liquor also varies. This causes the lifting belt to vibrate continuously during the dyeing process, and the contact with the dye liquor varies, improving the dyeing efficiency. This solves the problems of poor dyeing effect and low work efficiency in the dyeing process of high molecular weight polyethylene round lifting belts.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dyeing device for producing circular lifting slings of high molecular weight polyethylene, comprising a dyeing box (1), characterized in that: The dyeing box (1) is provided with adjustment components (2) on both the left and right sides for adjusting the position of the lifting strap, and the top of the dyeing box (1) is provided with a rotating component (3) for pressing the lifting strap. The adjustment assembly (2) includes a servo motor (21) fixed to the side wall of the dyeing box (1). A rotating pull rod (22) is fixed to the side of the output shaft of the servo motor (21). A support spring (23) is fixed to the inner side of the rotating pull rod (22). A limit slider (24) is fixed to the top of the support spring (23). Electric push rods (25) are fixed to both ends of the back of the dyeing box (1). A limit pressure plate (26) is fixed to the top side of the electric push rod (25). The rotating assembly (3) includes two support frames (31) fixed at the top of the front and rear ends of the dyeing box (1). A drive motor (32) is fixed to the back of the rear support frame (31). A ring frame (33) is fixed to the side of the output shaft of the drive motor (32). Three rotating frames (34) are rotatably connected to the front of the ring frame (33). Four pressure rollers (35) for dynamically pressing the lifting belt are fixed to the front of the rotating frame (34). A connecting rod (36) is provided between the two support frames (31). A drive gear plate (37) is fixed to the outside of the connecting rod (36).

2. The dyeing device for producing circular polyethylene hoisting slings according to claim 1, characterized in that: The front of the dyeing box (1) is provided with a U-shaped opening groove (11) for the hoisting belt to enter. The limiting pressure plate (26) is located inside the opening groove (11). The bottom of the limiting pressure plate (26) and the bottom wall surface of the opening groove (11) are provided with a number of arc-shaped slots for limiting the hoisting belt.

3. The dyeing device for producing circular polyethylene hoisting slings according to claim 1, characterized in that: The rotating pull rod (22) has an L-shaped structure and a limiting groove (221) that runs through the front and rear sides. The bottom of the support spring (23) is fixedly installed to the bottom wall of the limiting groove (221).

4. The dyeing device for producing circular polyethylene hoisting slings according to claim 3, characterized in that: The limiting slider (24) is longitudinally embedded inside the limiting groove (221) and slidably connected to the rotating pull rod (22). The top of the limiting slider (24) is provided with an inclined surface for sliding with the hoisting belt.

5. The dyeing device for producing circular polyethylene hoisting slings according to claim 1, characterized in that: The output shaft of the drive motor (32) passes through the support frame (31) on the rear side of the dyeing box (1) to the opposite side of the two support frames (31). The ring frame (33) is located on the front of the rear support frame (31), and the front of the ring frame (33) is rotatably connected to the connecting rod (36).

6. The dyeing device for producing circular polyethylene hoisting slings according to claim 1, characterized in that: The rotating frame (34) has a cross-shaped structure and a rotating shaft that is inserted into the ring frame (33) is fixed on its back. A driven gear (38) for driving the rotating frame (34) to rotate is fixed on the outside of the rotating shaft.

7. The dyeing device for producing circular polyethylene hoisting slings according to claim 1, characterized in that: The end of the pressure roller (35) away from the rotating frame (34) is provided with an intercepting diagonal bar for intercepting the hoisting belt from entering the inner side of the pressure roller (35), and the connecting rod (36) is fixedly installed with the support frame (31) on the left side.

8. The dyeing device for producing circular polyethylene hoisting slings according to claim 6, characterized in that: The drive gear (37) is located outside the connecting rod (36) between the rotating frame (34) and the ring frame (33), and the drive gear (37) meshes with the driven gear (38).

Citation Information

Patent Citations

  • A kind of electrical universal environmental protection energy-saving dyeing machine for lifting belt

    CN222730119U