Bandage end winding and folding mechanism
By combining the clamping part and the rotary drive device, the problem of inconsistent folding at the end of the strap is solved, realizing automated and precise folding and a ring structure at the end of the strap, thus improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520592560.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-01
AI Technical Summary
In the existing technology, the folding and forming of the end of the strap relies on manual operation, which is inefficient and inconsistent. Mechanical folding mechanisms are complex in structure and lack precision, resulting in the strap being twisted or not folded properly, which affects product quality and service life.
The clamping part and the rotary drive device work together to achieve precise folding and ring forming of the end of the strap. The clamping part holds the strap of a predetermined length and the rotary drive device controls the folding angle and number of turns. With the help of the auxiliary strap winding device and the Y-axis drive module, the end of the strap is stably wound into a ring structure.
It achieves a uniform and tight ring structure at the end of the strap, improving production efficiency and product quality, reducing labor costs and mechanical failure rate, and is suitable for mass production.
Smart Images
Figure CN223891260U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hand strap processing equipment, and in particular to a strap end winding and folding mechanism. Background Technology
[0002] Hand-operated straps (also known as binding straps or tensioners) are tools widely used in logistics, transportation, and warehousing. They are used to bind and secure goods using straps. During the manufacturing process of hand-operated straps, the ends of the straps are usually processed into a loop structure so that they can be subsequently fixed by sewing or other methods to form a strong closed loop, facilitating operation and use.
[0003] Currently, the folding and shaping of the ends of the straps mainly relies on manual operation or simple mechanical assistance. Manual folding is inefficient and makes it difficult to ensure the consistency of folded length and shape, affecting product quality. On the other hand, existing mechanical folding mechanisms are complex in structure and lack sufficient folding precision, which can easily cause the straps to twist or not fold properly, leading to difficulties in subsequent sewing and even affecting the strength and service life of the straps.
[0004] Furthermore, traditional folding mechanisms lack stable clamping and rotation control during the strap winding process, which can easily lead to strap misalignment or loosening, making it difficult to form a uniform and tight ring structure. Therefore, there is an urgent need for an automated mechanism that is simple in structure, stable in operation, and capable of efficiently completing the winding and folding of the strap ends, in order to improve the production efficiency and forming quality of hand-operated straps. Utility Model Content
[0005] The purpose of this application is to provide a strap end winding and folding mechanism, which, through the cooperation of a clamping part and a rotary drive device, achieves precise folding and ring forming of the strap end, providing a stable and reliable pre-treatment structure for subsequent sewing processing.
[0006] To achieve the above objectives, this application provides the following technical solution:
[0007] A strap end winding and folding mechanism includes a clamping part and a rotary drive device. The clamping part is mounted on the rotary drive device and is used to clamp a predetermined length segment of the strap. The rotary drive device drives the clamping part to rotate, so that the strap end segment of the predetermined length segment is folded around the strap body to form a ring structure.
[0008] Furthermore, the clamping part includes a first clamping drive device and a first clamping plate part. The first clamping plate part is respectively disposed on the first clamping drive device with the first clamping drive device facing each other. The first clamping drive device is used to drive the first clamping plate part to perform clamping movement.
[0009] Furthermore, the first clamping plate portion includes a first left clamping plate and a first right clamping plate, and a first clearance portion is provided between the first left clamping plate and the first right clamping plate. The first clearance portion is used to avoid the clamping area of the second pull belt mechanism. The first clearance portion corresponds to the position of the annular structure, ensuring that the second pull belt mechanism can clamp the annular structure and transfer it to the working area of the sewing machine.
[0010] Furthermore, the strap end winding and folding mechanism also includes an auxiliary strap winding device, which includes a clamping roller and a clamping plate. The clamping roller is rotatably disposed on one side of the clamping part, with its axis perpendicular to the strap conveying direction. The clamping plate is disposed opposite to the clamping roller, and forms an adjustable clamping gap with the clamping roller through a driving device. When the clamping part rotates and folds the strap, the clamping roller and the clamping plate cooperate to clamp the non-winding section of the strap, and constrain the swing of the strap through friction, ensuring that the tail end of the strap of the predetermined length is stably wound into a loop.
[0011] Furthermore, the clamping plate is provided with a second clearance portion, which is a rectangular notch opened on the right side of the clamping plate.
[0012] Furthermore, the strap end winding and folding mechanism also includes a Y-axis drive module, which is used to drive the strap end winding and folding mechanism to move along the Y-axis direction.
[0013] The beneficial effects of this application are as follows:
[0014] (1) This application uses a clamping part to precisely clamp a predetermined length of the strap, and a rotary drive device to control the folding angle and number of turns, ensuring that the end of the strap is wound into a uniform and tight ring structure, avoiding dimensional deviations or loose folding caused by manual operation, and improving product yield.
[0015] (2) The automated rotation and folding method replaces the traditional manual operation or complex mechanical assistance, which greatly shortens the processing time of a single piece, is suitable for mass production, and effectively reduces labor costs and production cycle.
[0016] (3) The folding action can be completed with the cooperation of only the clamping part and the rotary drive device. The mechanism is compact, easy to integrate into the existing production line, and has a low mechanical failure rate and low maintenance cost. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a strap end winding and folding mechanism provided in an embodiment of this application;
[0018] Figure 2 A schematic diagram of the strap end winding and folding mechanism provided in one embodiment of this application from another perspective;
[0019] Figure 3 A top view of a strap end winding and folding mechanism and a second strap pulling mechanism provided in an embodiment of this application;
[0020] Explanation of reference numerals in the attached figures:
[0021] 310. Clamping part; 320. Rotation drive device;
[0022] 311. First clamping drive device; 312. First left clamping plate; 313. First right clamping plate; 314. First clearance part;
[0023] 710 Clamping roller; 720 Clamping plate; 730 Second clearance part; Detailed Implementation
[0024] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0026] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0028] like Figure 1 and Figure 2 As shown, a strap end winding and folding mechanism includes a clamping part 310 and a rotary drive device 320. The clamping part 310 is mounted on the rotary drive device 320 and is used to clamp a predetermined length of strap. The rotary drive device 320 drives the clamping part 310 to rotate, so that the strap end of the predetermined length is folded around the strap body to form a ring structure.
[0029] The rotary drive device 320 is used to drive the clamping part 310 to rotate. The drive type is a servo motor or a stepper motor, with a reducer (if torque needs to be increased).
[0030] In one embodiment, the clamping part 310 includes a first clamping drive device 311 and a first clamping plate part. The first clamping plate part is respectively disposed on the first clamping drive device 311 with the first clamping drive device 311 facing each other. The first clamping drive device 311 is used to drive the first clamping plate part to perform clamping movement.
[0031] The first clamping drive device 311 is used to clamp the end of the strap. Its drive type can be a cylinder, an electric push rod, or a servo motor + lead screw module.
[0032] like Figure 3 As shown, in one embodiment, the first clamping plate includes a first left clamping plate 312 and a first right clamping plate 313. A first clearance portion 314 is provided between the first left clamping plate 312 and the first right clamping plate 313. The first clearance portion 314 is used to avoid the clamping area of the second pull belt mechanism. The first clearance portion 314 corresponds to the position of the ring structure, ensuring that the second pull belt mechanism can clamp the ring structure and move it to the working area of the sewing machine.
[0033] like Figure 1 and Figure 2As shown, in one embodiment, the strap end winding and folding mechanism further includes an auxiliary strap winding device. This auxiliary strap winding device includes a clamping roller 710 and a clamping plate 720. The clamping roller 710 is rotatably disposed on one side of the clamping portion 310, with its axis perpendicular to the strap conveying direction. The clamping plate 720 is disposed opposite to the clamping roller 710, forming an adjustable clamping gap with the clamping roller 710 via a driving device. When the clamping portion 310 rotates and folds the strap, the clamping roller 710 and the clamping plate 720 cooperate to clamp the non-wound section of the strap, constraining the strap's sway through friction, ensuring that the strap end of a predetermined length is stably wound into a loop. The adjustable clamping gap formed by the clamping roller 710 and the clamping plate 720 applies uniform friction to the non-wound section of the strap, preventing lateral slippage or twisting of the strap during rotation and folding. This ensures that the strap end is always wound along a predetermined path, preventing the loop structure from loosening or misaligning due to swaying. It is especially suitable for straps with high tension or smooth surfaces (such as nylon straps and polyester straps), and solves the problem of slippage caused by traditional unrestrained folding.
[0034] The drive unit 740 of the auxiliary strap winding device is used to adjust the gap between the clamping roller 710 and the clamping plate 720. The drive type is: small cylinder, linear motor or manual adjustment screw.
[0035] In one embodiment, the clamping plate 720 is provided with a second clearance portion 730, which is a rectangular notch formed on the right side of the clamping plate 720. The rectangular notch of the second clearance portion 730 provides precise operating space for the second strap pulling mechanism (such as a mechanical gripper), enabling it to grip the end of the strap that has been wound into a loop without obstruction.
[0036] In one embodiment, the strap end winding and folding mechanism further includes a Y-axis drive module 330, which drives the strap end winding and folding mechanism to move along the Y-axis direction. The Y-axis drive module can be a servo motor + ball screw module or a linear motor.
[0037] The working principle of this application is as follows:
[0038] The strap end winding and folding mechanism of this application is mainly used for the automated processing of hand-operated straps, precisely folding the strap end into a ring structure for subsequent sewing and fixing. Its working principle can be divided into the following steps:
[0039] 1. Strap positioning and clamping
[0040] The strap enters the processing area along the conveying direction and is clamped by the clamping part 310 (including the first left clamping plate 312 and the first right clamping plate 313) for a predetermined length (i.e. the part that needs to be folded). The first clamping drive device 311 drives the first left clamping plate 312 and the first right clamping plate 313 to close, ensuring that the strap is stably clamped. At the same time, the first clearance part 314 (located between the two clamping plates) reserves space for the clamping of the subsequent second strap pulling mechanism.
[0041] 2. Auxiliary restraint strap non-winding section
[0042] The auxiliary strap winding device (including clamping roller 710 and clamping plate 720) operates before the strap is folded:
[0043] The clamping roller 710 and the clamping plate 720 cooperate to form an adjustable clamping gap, clamping the non-wound section A3 of the strap (i.e., the main body of the strap). Friction constrains the strap, preventing it from swaying or shifting during folding and ensuring stable winding. The second clearance portion 730 (a rectangular notch on the clamping plate 720) avoids interference with the operation of the second strap pulling mechanism.
[0044] 3. Rotate the drive strap to fold the end into a loop.
[0045] The rotary drive device 320 drives the clamping part 310 (along with the clamped end of the strap) to rotate, causing the end of the strap to wrap around the main body of the strap once, forming a ring structure. Since the auxiliary strap winding device has fixed the main body of the strap, the folding process will not cause the strap to shift as a whole, ensuring the tightness and consistency of the ring structure.
[0046] 4. Transfer to sewing machine for processing
[0047] After folding, the second strapping mechanism 400 (such as a robotic arm or gripper) holds the annular structure through the first clearance part 314 and moves it to the working area of the sewing machine for sewing and fixing. The Y-axis drive module can adjust the position of the entire mechanism to adapt to the processing requirements of straps of different specifications.
[0048] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0049] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.
[0050] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “may include” and “have,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A strap end winding and folding mechanism, characterized in that: It includes a clamping part and a rotary drive device. The clamping part is mounted on the rotary drive device and is used to clamp a predetermined length of strap. The rotary drive device drives the clamping part to rotate, so that the end of the strap of the predetermined length is folded around the strap body to form a ring structure.
2. The strap end winding and folding mechanism according to claim 1, characterized in that: The clamping part includes a first clamping drive device and a first clamping plate part. The first clamping plate part is respectively disposed on the first clamping drive device with the first clamping drive device facing each other. The first clamping drive device is used to drive the first clamping plate part to perform clamping movement.
3. The strap end winding and folding mechanism according to claim 2, characterized in that: The first clamping plate includes a first left clamping plate and a first right clamping plate. A first clearance portion is provided between the first left clamping plate and the first right clamping plate. The first clearance portion is used to avoid the clamping area of the second pull belt mechanism. The first clearance portion corresponds to the position of the ring structure, ensuring that the second pull belt mechanism can clamp the ring structure and move it to the working area of the sewing machine.
4. The strap end winding and folding mechanism according to claim 1, characterized in that: The strap end winding and folding mechanism further includes an auxiliary strap winding device, which includes a clamping roller and a clamping plate. The clamping roller is rotatably disposed on one side of the clamping part, with its axis perpendicular to the strap conveying direction. The clamping plate is disposed opposite to the clamping roller, and forms an adjustable clamping gap with the clamping roller through a driving device. When the clamping part rotates and folds the strap, the clamping roller and the clamping plate cooperate to clamp the non-winding section of the strap, and constrain the swing of the strap through friction, ensuring that the tail end of the strap of the predetermined length is stably wound into a loop.
5. The strap end winding and folding mechanism according to claim 4, characterized in that: The clamping plate is provided with a second clearance portion, which is a rectangular notch opened on the right side of the clamping plate.
6. The strap end winding and folding mechanism according to claim 1, characterized in that: The strap end winding and folding mechanism also includes a Y-axis drive module, which is used to drive the strap end winding and folding mechanism to move along the Y-axis direction.