Rope clamping method for enhancing stiffness of rope end, rope clamping assembly, U-shaped rope forming device and stringing machine

Abstract

The invention discloses a rope clamping method and a rope clamping assembly for enhancing the stiffness of a rope end, a U-shaped rope forming device and a stringing machine. The rope clamping method comprises the following steps: clamping the end part of a fixed-length braided rope by using a rope pressing clamp of the rope clamping assembly; and a clamping driving piece connected with the rope pressing clamp is used for driving the rope pressing clamp to execute a clamping action, and radial pressure is applied to the end part of the rope body, so that the rope body is deformed, and the stiffness of the rope body is enhanced. The rope clamping assembly comprises a rope pressing clamp used for clamping the end of a fixed-length braided rope; and the clamping driving piece is connected with the rope pressing clamp, drives the rope pressing clamp to execute clamping action, and deforms to enhance the stiffness of the rope body when radial pressure is applied to the end part of the rope body. According to the rope clamping method and the rope clamping assembly for enhancing the stiffness of the rope end, the U-shaped rope forming device and the stringing machine, the forming operation of the hollow paper rope and the U-shaped rope can be efficiently and reliably completed; and it is guaranteed that the follow-up stringing action is fast and accurate, automatic production is achieved, the production efficiency is remarkably improved, and the product cost is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of tote bag production, specifically a rope clamping method and rope clamping assembly for enhancing the stiffness of rope ends, a U-shaped rope forming device, and a rope threading machine. Background Technology

[0002] Tote bags, as a common packaging medium, are widely used in gifts, clothing, cultural and creative products, and commercial promotion due to their portability and display properties.

[0003] The load-bearing and lifting functions of a tote bag mainly rely on the handle. Currently, most common handles are made of synthetic fibers (such as nylon / polyester rope) or cotton rope. For ease of assembly, these ropes usually have rigid plastic or metal clips at both ends. However, this design has drawbacks: firstly, synthetic fibers and cotton materials are difficult to degrade in the natural environment, which is not in line with environmental protection trends; secondly, if recycling is required, the clips must be removed, increasing the process and cost.

[0004] In contrast, paper rope, especially hollow needle-punched paper rope made using a weaving process, is increasingly becoming the preferred choice for eco-friendly tote bags due to its advantages such as biodegradability, rustic texture, and rich colors. However, its application faces the following technical challenges: because the ends of the paper rope lack rigid clips, the rope ends are loose and frizzy, making it difficult to position and prone to loosening when threading it through the rope holes in the bag. Currently, this process mainly relies on manual labor, resulting in low efficiency and poor consistency, which seriously affects the automated production of eco-friendly paper rope tote bags.

[0005] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0006] To address the above-mentioned technical problems, this invention provides a rope clamping method, rope clamping assembly, U-shaped rope forming device, and rope threading machine to enhance the stiffness of the rope end. These methods can efficiently and reliably complete the U-shaped rope forming operation of hollow paper ropes, ensuring fast and precise subsequent rope threading, automated production, significantly improving production efficiency, and reducing product costs.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A rope clamping method to enhance the stiffness of hollow rope ends, wherein the end of a fixed-length braided rope is clamped by the rope clamping clamp of a rope clamping assembly;

[0009] The clamping drive connected to the clamping clamp is used to drive the clamping clamp to perform a clamping action, applying radial pressure to the end of the rope body to deform it and thus enhance its stiffness.

[0010] The clamping drive unit performs a clamping action on the rope clamp, which compresses and compacts the hollow part at the end of the braided rope, enhancing the stiffness of the rope end and ensuring that the rope end does not droop or loosen.

[0011] A rope clamping assembly for enhancing the end stiffness of a hollow rope, the rope clamping assembly comprising:

[0012] Rope clamps are used to hold the ends of fixed-length braided ropes.

[0013] A clamping drive unit, which is connected to the rope clamp, drives the rope clamp to perform a clamping action, and deforms the rope end when radial pressure is applied to it to enhance its stiffness.

[0014] The rope clamping assembly that enhances the stiffness of the hollow rope end uses a clamping drive to drive the rope clamp to clamp the end of the braided rope and apply pressure to the end of the braided rope to enhance its stiffness. This effectively prevents the rope end from fraying and drooping, ensuring that the subsequent hollow paper rope threading operation can be completed efficiently and reliably.

[0015] In a further optimized design, the rope clamp includes a fixed clamp and a movable clamp. The fixed clamp has a groove that matches the shape of the braided rope, and the movable clamp has a protrusion that mates with the groove.

[0016] The movable clamp is connected to the clamping drive, which drives the movable clamp to move toward the fixed clamp, so that the protrusion presses the braided rope into and clamps it at the bottom of the groove.

[0017] The protrusions press the braided rope into the grooves to apply radial pressure and enhance its stiffness. The rope clamp, through the movement of the movable clamp and together with the fixed clamp, clamps the end of the braided rope. By matching the protrusions and grooves and applying pressure, the hollow part of the braided rope is compacted, that is, the two sides of the pressure surface are pressed tightly to enhance its stiffness, ensuring that it can pass smoothly through the rope hole without drooping or loosening.

[0018] A further optimized solution also includes a rotary drive component, wherein the clamping drive component and the rope clamp are mounted on the rotary drive component, and the rotary drive component is configured to drive the rope clamp and the end of the braided rope being clamped to rotate.

[0019] In a further optimized design, the groove has a trapezoidal cross-section with a flat bottom and widening outwards, while the protruding end has a semi-circular cross-section. The trapezoidal groove and the semi-circular protrusion ensure that pressure is evenly distributed during application, preventing damage to the rope and improving the reliability of the operation and the protection of the rope end.

[0020] A further optimized design includes a rotating arm; one end of the rotating arm is connected to the rotary drive component, and the other end is connected to the rope clamp and the clamping drive component; the rotary drive component rotates, thereby causing the rotating arm and the rope clamp to rotate together. The structure of the rotating arm allows the rotation axis of the rope clamp to be flexibly set, optimizing the overall mechanical layout and making the structure more compact and reasonable.

[0021] A U-shaped rope forming device for enhancing rope end stiffness includes two sets of rope clamping assemblies arranged in parallel as described in claim 1. The rotary drive components in the two sets of rope clamping assemblies are coordinated to drive the two rope clamps to rotate synchronously, thereby shaping the braided rope into a U-shape. The U-shaped braided rope is formed by rotation, resulting in a fast forming process.

[0022] The further optimized solution also includes two sets of left and right moving components, each corresponding to one set of the rope clamping components;

[0023] Each set of left and right moving components is configured to move the rope clamping component along the length extension direction of the braided rope so that the U-shaped end of the braided rope corresponds to the rope threading hole.

[0024] By adding a left-right moving component, the device is no longer limited to forming; it can also precisely move the formed U-shaped rope end left and right to align with the rope threading hole, thus preparing for the subsequent rope threading process and improving the integration and practicality of the device.

[0025] The scheme is further optimized so that each group of left and right moving components includes a translation drive component, a ball screw assembly, a guide rail assembly, and a timing belt assembly;

[0026] The extension direction of the guide rail assembly is parallel to the extension direction of the braided rope, and two sets of them are arranged side by side, with both sets of the rope clamping assemblies located on the guide rail assembly.

[0027] The ball screw assembly extends parallel to the length extension direction of the braided rope, and is connected to the rope clamping assembly.

[0028] The translation drive is connected to the ball screw assembly via the synchronous belt assembly and drives it to rotate, thereby moving the rope clamping assembly on the guide rail assembly.

[0029] The left and right moving components adopt a high-precision transmission scheme of ball screws, guide rails and synchronous belts, which ensures the accuracy, stability and repeatability of the rope end position movement, and realizes automated and reliable production.

[0030] A rope threading machine includes any of the above-described U-shaped rope forming devices for enhancing the stiffness of the rope ends.

[0031] The rope clamping method, rope clamping assembly, U-shaped rope forming device, and rope threading machine of the present invention, which enhance the stiffness of the rope end, have the following technical advantages compared with the prior art:

[0032] 1. Effectively solves the technical problem of hollow braided rope being difficult to thread: The specially designed rope clamp can apply radial pressure to the end of the hollow rope before threading, significantly enhancing its stiffness and solving the problem that paper rope without a card cannot be automatically threaded due to loose strands and drooping.

[0033] 2. Achieve efficient and integrated automated processes: Integrate the originally separate manual steps of molding, positioning, and threading into continuous automated actions of a single device, greatly improving production efficiency.

[0034] 3. Ensure precise operation and reliable production: High repeatability of rope end forming angle, movement positioning and lifting rope threading is guaranteed, ensuring the stability of automated production and product consistency.

[0035] 4. Promote the large-scale application of environmentally friendly materials: It reduces the production cost of environmentally friendly paper rope tote bags and provides key equipment support for their replacement of non-environmentally friendly chemical fiber ropes and cotton ropes (which require clips), thus having both environmental and commercial value. Attached Figure Description

[0036] Figure 1 This is a perspective view of a specific embodiment of the U-shaped rope forming device for enhancing rope end stiffness according to the present invention;

[0037] Figure 2 yes Figure 1 A stereoscopic view from another perspective;

[0038] Figure 3 yes Figure 1 3D view of the middle clamping rope assembly;

[0039] Figure 4 yes Figure 3 A stereoscopic view from another perspective;

[0040] Figure 5 yes Figure 1 A three-dimensional diagram of the medium-pressure rope clamp in its vertical position after rotating 90°, i.e., a diagram of the U-shaped rope.

[0041] In the figure: rope clamping assembly 10, rope pressing clamp 11, fixed clamp 11a, moving clamp 11b, groove 11c, protrusion 11d, clamping drive 12, rotation drive 13, rotating arm 14, left and right moving assembly 20, translation drive 21, ball screw assembly 22, guide rail assembly 23, timing belt assembly 24, braided rope A. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0043] like Figures 1 to 5 As shown, this invention provides a specific embodiment of the U-shaped rope forming device for enhancing rope end stiffness.

[0044] like Figure 3 and Figure 4As shown, a rope clamping method for enhancing the stiffness of hollow rope ends involves using a rope clamping clamp 11 of a rope clamping assembly 10 to clamp the end of a fixed-length braided rope; and using a clamping drive 12 connected to the rope clamp 11 to drive the rope clamp 11 to perform a clamping action, applying radial pressure to the end of the rope body to cause deformation and thereby enhance its stiffness.

[0045] The clamping drive 12 clamps the rope clamp 11, compressing the hollow part at the end of the braided rope, which enhances the stiffness of the rope end and ensures that the rope end does not droop or loosen.

[0046] like Figure 1 As shown, the U-shaped rope forming device for enhancing rope end stiffness in this embodiment includes two sets of rope clamping assemblies 10 arranged in parallel. Each set of rope clamping assemblies 10 includes a rope pressing clamp 11, a clamping drive member 12, and a rotation drive member 13. The rope pressing clamp 11 is used to clamp the end of a fixed-length braided rope A; the clamping drive member 12 is connected to the rope pressing clamp 11 and is configured to drive the rope pressing clamp 11 to perform a clamping action and apply radial pressure to the end of the rope body to enhance its stiffness; the clamping drive member 12 and the rope pressing clamp 11 are mounted on the rotation drive member 13, and the rotation drive member 13 is configured to drive the rope pressing clamp 11 and the clamped end of the braided rope A to rotate.

[0047] Preferably, the clamping drive component 12 is a cylinder; the cylinder can achieve rapid clamping and fast action. The rotation drive component 13 is a servo motor; the servo motor can achieve precise rotation angle control.

[0048] like Figure 5 As shown, the rotary drive 13 in the two sets of rope clamping assemblies 10 are configured in a coordinated manner to drive the two rope clamps 11 to rotate synchronously, thereby shaping the braided rope A into a U-shape.

[0049] The U-shaped rope forming device that enhances the stiffness of the rope end drives the rope clamp 11 to clamp the end of the braided rope A through the clamping drive component 12, and applies pressure to the end of the braided rope A to enhance its stiffness, effectively avoiding the situation of rope end fraying and drooping, and ensuring that the subsequent hollow paper rope threading operation is completed efficiently and reliably; the braided rope A is formed into a U-shape by rotation, and the forming action is fast.

[0050] like Figure 3 and Figure 4 As shown, the rope clamp 11 includes a fixed clamp 11a and a movable clamp 11b. The fixed clamp 11a has a groove 11c that matches the shape of the braided rope A, and the movable clamp 11b has a protrusion 11d that mates with the groove 11c. The movable clamp 11b is connected to a clamping drive member 12. The clamping drive member 12 drives the movable clamp 11b to move toward the fixed clamp 11a, so that the protrusion 11d presses the braided rope A into and clamps it at the bottom of the groove 11c, thereby applying radial pressure to the braided rope A to enhance its stiffness.

[0051] The rope clamp 11 clamps the end of the braided rope A together with the fixed clamp 11a by moving the movable clamp 11b. The hollow part of the braided rope A is compacted and strengthened by matching the protrusion 11d with the groove 11c and applying pressure, so as to ensure that it can pass smoothly through the rope hole without drooping or loosening.

[0052] like Figure 4 As shown, the cross-section of the groove 11c is a trapezoidal structure with a flat bottom and an outward expansion, and the end cross-section of the protrusion 11d is semi-circular. The trapezoidal groove 11c and the semi-circular protrusion 11d ensure that pressure is evenly distributed when pressure is applied, avoids cutting the rope, and improves the reliability of the operation and the protection of the end of the braided rope A.

[0053] like Figure 1 and Figure 3 As shown, the rope clamping assembly 10 also includes a rotating arm 14; one end of the rotating arm 14 is connected to a rotating drive 13, and the other end is connected to a rope clamp 11 and a clamping drive 12; the rotating drive 13 rotates, thereby driving the rotating arm 14 and the rope clamp 11 to rotate together. The structure of the rotating arm 14 allows the rotation axis of the rope clamp 11 to be flexibly set, optimizing the overall mechanical layout and making the structure more compact and reasonable.

[0054] like Figure 1 and Figure 2 As shown, the U-shaped rope forming device for enhancing the stiffness of the rope end also includes two sets of left and right moving components 20, which are respectively connected to a set of rope clamping components 10; each set of left and right moving components 20 is configured to move the rope clamping and rotating component 10 along the length extension direction of the braided rope A so that the U-shaped end of the braided rope A corresponds to the rope threading hole.

[0055] The addition of the left-right moving component 20 enables the device to not only be limited to forming, but also to accurately move the formed U-shaped rope end left and right to the position aligned with the rope threading hole, thus preparing for the subsequent rope threading process and improving the integration and practicality of the device.

[0056] like Figure 2 As shown, each set of left and right moving components 20 includes a translation drive 21, a ball screw assembly 22, a guide rail assembly 23, and a timing belt assembly 24. The extension direction of the guide rail assembly 23 is parallel to the length extension direction of the braided rope A, and two sets are arranged side by side, with both sets of rope clamping assemblies 10 located on the guide rail assembly 23. The extension direction of the ball screw assembly 22 is parallel to the length extension direction of the braided rope A, and it is connected to the rope clamping assembly 10. The translation drive 21 is connected to the ball screw assembly 22 via the timing belt assembly 24 and drives it to rotate, thereby moving the rope clamping rotation assembly 10 on the guide rail assembly 23. Preferably, the translation drive 21 is a servo motor, which ensures the accuracy of the movement.

[0057] The left and right moving component 20 adopts a high-precision transmission scheme of ball screw, guide rail and synchronous belt, which ensures the accuracy, stability and repeatability of the rope end position movement, and realizes automated and reliable production.

[0058] The present invention also discloses a rope threading machine, including the above-mentioned U-shaped rope forming device for enhancing the stiffness of the rope ends.

[0059] The rope clamping method, rope clamping assembly, U-shaped rope forming device, and rope threading machine that enhance the stiffness of the rope end can efficiently and reliably complete the U-shaped rope forming operation of hollow paper rope; ensure that the subsequent rope threading action is fast, precise, and automated, significantly improving production efficiency and reducing product costs.

[0060] In summary, as described in the specification and figures, this invention has been manufactured into actual samples and tested multiple times. The test results demonstrate that the invention achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of the invention. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this invention without departing from the scope of the technical features and similar features of this invention, based on partial modifications or alterations, are within the protection scope of this invention.

Claims

1. A method for clamping a hollow rope to enhance its end stiffness, characterized in that, The end of the fixed-length braided rope is clamped by the rope clamp (11) of the rope clamping assembly (10); The clamping drive (12) connected to the clamping clamp (11) drives the clamping clamp (11) to perform a clamping action, applying radial pressure to the end of the rope body to deform it and thus enhance its stiffness.

2. A rope clamping assembly for enhancing the stiffness of hollow rope ends, characterized in that, The rope clamping assembly (10) includes: Rope clamp (11) is used to clamp the end of a fixed-length braided rope; The clamping drive (12) is connected to the rope clamp (11) and drives the rope clamp (11) to perform a clamping action. When radial pressure is applied to the end of the rope, it deforms and enhances its stiffness.

3. The rope clamping assembly for enhancing rope end stiffness according to claim 2, characterized in that, The rope clamp (11) includes a fixed clamp (11a) and a movable clamp (11b). The fixed clamp (11a) is provided with a groove (11c) that matches the shape of the braided rope, and the movable clamp (11b) is provided with a protrusion (11d) that cooperates with the groove (11c). The movable clamp (11b) is connected to the clamping drive (12), and the clamping drive (12) drives the movable clamp (11b) to move toward the fixed clamp (11a), so that the protrusion (11d) presses the braided rope into and clamps it at the bottom of the groove (11c).

4. The rope clamping assembly for enhancing rope end stiffness according to claim 2, characterized in that, It also includes a rotary drive (13), on which the clamping drive (12) and the rope clamp (11) are mounted, and the rotary drive (13) is configured to drive the rope clamp (11) and the end of the braided rope held therein to rotate.

5. The rope clamping assembly for enhancing rope end stiffness according to claim 2, characterized in that, The groove (11c) has a trapezoidal structure with a flat bottom and expanding outwards, and the end section of the protrusion (11d) has a semi-circular shape.

6. The rope clamping assembly for enhancing rope end stiffness according to claim 4, characterized in that, It also includes a rotating arm (14); one end of the rotating arm (14) is connected to the rotating drive (13), and the other end is connected to the rope clamp (11) and the clamping drive (12); the rotating drive (13) rotates, thereby driving the rotating arm (14) and the rope clamp (11) to rotate together.

7. A U-shaped rope forming device for enhancing rope end stiffness, characterized in that, The system includes two sets of rope clamping assemblies (10) arranged in parallel as described in claim 4. The rotation drive (13) in the two sets of rope clamping assemblies (10) is configured to drive the two rope clamps (11) to rotate synchronously, thereby shaping the braided rope into a U-shape.

8. The U-shaped rope forming device for enhancing rope end stiffness according to claim 7, characterized in that, It also includes two sets of left and right moving components (20), which are respectively connected to one set of the rope clamping components (10); Each set of left and right moving components (20) is configured to move the rope clamping component (10) along the length extension direction of the braided rope so that the U-shaped end of the braided rope corresponds to the rope threading hole.

9. The U-shaped rope forming device for enhancing rope end stiffness according to claim 8, characterized in that, Each of the left and right moving components (20) includes a translation drive (21), a ball screw assembly (22), a guide rail assembly (23), and a timing belt assembly (24). The extension direction of the guide rail assembly (23) is parallel to the extension direction of the braided rope, and two sets of them are arranged side by side. Both sets of the rope clamping assemblies (10) are located on the guide rail assembly (23). The ball screw assembly (22) extends parallel to the length extension direction of the braided rope and is connected to the rope clamping assembly (10). The translation drive (21) is connected to the ball screw assembly (22) via the synchronous belt assembly (24) and drives it to rotate, thereby causing the rope clamping assembly (10) to move on the guide rail assembly (23).

10. A rope threading machine, characterized in that: The U-shaped rope forming device for enhancing rope end stiffness as described in any one of claims 7 to 9.

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