Jig for webbing cutting and webbing cutting apparatus

Abstract

The utility model discloses a kind of for harness cutting's fixture and harness cutting equipment, the fixture includes: feeding mechanism, for conveying harness;Connecting mechanism, for penetrating and opening harness;Discharge mechanism, through the connecting mechanism and feeding mechanism butt joint, for receiving and positioning harness;The front end of the connecting mechanism is provided with end separation part for stretching into and opening harness port when cutting, and its rear end is provided with fixed part for being engaged with the feeding mechanism to prevent the connecting mechanism from being pulled forward by harness;Cutting station is opened at the hollow part on the discharge mechanism corresponding the end separation part, for cutting equipment down and cutting the harness supported by the end separation part and opened.

Description

Technical Field

[0001] This utility model belongs to the field of webbing cutting technology, specifically relating to a jig and webbing cutting equipment for webbing cutting. Background Technology

[0002] Webbing, especially hollow closed-loop webbing, is a basic auxiliary material widely used in many industries such as textiles, clothing, bags, and outdoor products. In the production process of the final product, continuous lengths of webbing usually need to be cut into specific segments for use.

[0003] Currently, the main methods for cutting webbing on the market include mechanical cutting (such as using scissors or cutters) and heat-sealing cutting. However, both of these mainstream methods have significant technical drawbacks: Mechanical cutting issues: When using scissors or mechanical blades to cold cut webbing, since the webbing itself is woven from warp and weft yarns, direct cutting will cause the yarns to unravel from the cut, resulting in frayed edges and loose threads. This not only affects the appearance quality of the product, but the unraveled threads may also affect subsequent processing steps, such as sewing or bonding, and may even cause the entire product to be considered defective.

[0004] Hot-melt cutting problem: To solve the problem of fraying edges, hot-melt cutting equipment (such as hot cutters) is widely used. The principle is to instantly melt the synthetic fiber material at the cut edge of the webbing at high temperatures, sealing the edge and preventing the yarn from fraying. However, this method introduces a new and more challenging problem when processing hollow webbing: while the high temperature melts the webbing, it also melts the inner surfaces of the upper and lower layers. When the cutter applies pressure downwards, the molten fabric layers easily stick together, forming a hard, difficult-to-separate knot after cooling. This severely damages the shape and function of the webbing end, requiring customers to perform additional peeling operations before subsequent use, which is time-consuming, labor-intensive, and prone to damaging the webbing, reducing production efficiency and product yield.

[0005] In summary, existing technologies either suffer from quality issues such as frayed edges and loose threads, or are trapped in the functional dilemma of end adhesion. The market urgently needs an innovative solution that can effectively prevent the upper and lower layers of hollow webbing from adhering during the cutting process, especially during hot cutting, while ensuring a smooth and aesthetically pleasing cut, thereby achieving high-quality, high-efficiency automated production. Utility Model Content

[0006] In view of this, the main objective of this utility model is to provide a jig and a webbing cutting device for webbing cutting. To achieve the above objectives, the technical solution of this utility model is implemented as follows: A jig for cutting webbing, comprising: The feeding mechanism is used to convey the webbing. A connecting mechanism for inserting and spreading the webbing; The discharge mechanism, connected to the feeding mechanism via the connecting mechanism, is used to receive and position the webbing; The front end of the connecting mechanism is provided with an end separation part for extending into and opening the webbing port during cutting, and the rear end is provided with a fixing part for engaging with the feeding mechanism to prevent the connecting mechanism from being pulled forward by the webbing. The material discharge mechanism has a cutout at the cutting station corresponding to the end separation part, which is used for the cutting equipment to descend and cut the webbing supported and spread by the end separation part.

[0007] Preferably, the fixing part includes at least one engaging structure formed by a protrusion, and the feeding mechanism is correspondingly provided with an engaging part for accommodating and locking the engaging structure, so as to realize the axial positioning of the connecting mechanism.

[0008] Preferably, the engaging structure is a spherical protrusion symmetrically arranged on both sides of the fixing part, and the engaging part is a slot or hole that matches the shape of the spherical protrusion.

[0009] Preferably, the connecting mechanism further includes a conveying guide connected between the end separating part and the fixing part.

[0010] Preferably, the conveying guide is a slender rod-shaped structure with a rectangular cross-section, used to reduce the contact area with the inner wall of the webbing to avoid material blockage during conveying.

[0011] Preferably, the cross-section of the end separation portion is trapezoidal, and its width gradually increases from front to back, for smooth introduction and gradual opening of the webbing port.

[0012] Preferably, the maximum width of the end separation portion is adapted to the width of the webbing opening to ensure that the webbing can be effectively stretched open throughout the entire end to prevent sticking.

[0013] Preferably, the size of the hollowed-out portion of the discharge mechanism is larger than the size of the end separation portion, so as to ensure that the cutting equipment has sufficient operating space and will not damage the connecting mechanism.

[0014] A webbing cutting device includes the aforementioned jig for webbing cutting.

[0015] Preferably, it also includes a hot cutting blade disposed above the material discharge mechanism, the downward path of the hot cutting blade corresponding to the position of the hollowed-out portion.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: When this invention is used, when the webbing is conveyed to the cutting station of the discharge mechanism, the end separation part can be pre-extended and physically opened up the webbing port, thereby directly solving the problem of port adhesion caused by the melting of the contact surface of the upper and lower layers of webbing during hot cutting; at the same time, the fixing part at the rear end of the connecting mechanism engages with the feeding mechanism, which can effectively counteract the forward traction force generated by the webbing on the connecting mechanism during continuous conveying, thereby ensuring the stability of the position of the connecting mechanism and its end separation part at the moment of cutting, and avoiding inaccurate cutting or failure of opening due to fixture displacement; in addition, the corresponding hollow part on the discharge mechanism provides unobstructed operating space for the cutting equipment, so that the cutting action can be accurately applied to the opened webbing, and cooperate with the supporting role of the end separation part, ultimately achieving high-quality cutting as a whole (flat port, no adhesion, no loose threads, and ensuring the continuity and reliability of the production process). Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this invention, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This invention provides a schematic diagram of the structure of a jig for cutting webbing, as shown in the embodiment of the present invention. Figure 2 for Figure 1 A bottom view; Figure 3 for Figure 1 The right view. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, 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, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0021] This utility model embodiment provides a fixture for cutting webbing, such as... Figure 1-3 As shown, it includes: a feeding mechanism 1 for conveying webbing; a connecting mechanism 2 for inserting and spreading the webbing; and a discharging mechanism 3, which connects to the feeding mechanism 1 via the connecting mechanism 2, for receiving and positioning the webbing. The front end of the connecting mechanism 2 is provided with an end separation part 21 for extending into and spreading the webbing port during cutting, and its rear end is provided with a fixing part 22 for engaging with the feeding mechanism 1 to prevent the connecting mechanism 2 from being pulled forward by the webbing. The discharging mechanism 3 has a hollow part 31 at the cutting position corresponding to the end separation part 21, for the cutting equipment to descend and cut the webbing supported and spread by the end separation part 21.

[0022] When this invention is used, when the webbing is conveyed to the cutting station of the discharge mechanism 3, the end separation part 21 can be pre-extended and physically opened up the webbing port, thereby directly solving the problem of port adhesion caused by the melting of the contact surface of the upper and lower layers of webbing during hot cutting; at the same time, the fixing part 22 at the rear end of the connecting mechanism 2 engages with the feeding mechanism 1, which can effectively counteract the forward traction force generated by the webbing on the connecting mechanism 2 during continuous conveying, thereby ensuring the stability of the position of the connecting mechanism 2 and its end separation part 21 at the moment of cutting, and avoiding inaccurate cutting or failure of opening due to fixture displacement; in addition, the corresponding hollow part 31 on the discharge mechanism 3 provides unobstructed operating space for the cutting equipment, so that the cutting action can be accurately applied to the opened webbing, and cooperate with the supporting role of the end separation part 21, ultimately achieving high-quality cutting as a whole (flat port, no adhesion, no loose threads, and ensuring the continuity and reliability of the production process).

[0023] In some embodiments, the fixing part 22 includes at least one protruding engagement structure, and the feeding mechanism 1 is provided with a corresponding engagement part 11 for accommodating and locking the engagement structure, so as to achieve axial positioning of the connecting mechanism 2.

[0024] The engaging structure consists of spherical protrusions symmetrically arranged on both sides of the fixing part 22, and the engaging part 11 is a slot or hole that matches the shape of the spherical protrusions.

[0025] The engaging structure is preferably made of a wear-resistant and rigid material (such as hard plastic or metal), and its shape is not limited to a sphere, but can also be a hemispherical, cylindrical or other protruding shape that can achieve the engaging function.

[0026] Accordingly, the feeding mechanism 1 is precisely machined with a locking part 11 for accommodating and locking the locking structure. The shape of the locking part 11 is adapted to the locking structure, and its size design allows the locking structure to be pressed in or out at a specific angle, but it can form a tight fit under normal working conditions, realizing precise axial positioning of the connecting mechanism 2, preventing it from axially moving under the friction of the webbing conveyor, and allowing disassembly when maintenance or replacement is required, reflecting the unity of reliability and convenience.

[0027] For example, the engaging structure is designed as spherical protrusions symmetrically arranged on both sides of the fixing part 22. The spherical protrusions have the advantage of being non-directional, which facilitates engaging operations from any radial angle.

[0028] The engaging part 11 on the feeding mechanism 1 is a slot or hole that matches the shape of the spherical protrusion. It not only provides reliable radial and axial limiting and ensures the stability of the connecting mechanism 2 during operation, but also effectively avoids uneven wear and stress concentration caused by unilateral engagement, thus extending the service life of the fixture.

[0029] In some embodiments, the connecting mechanism 2 further includes a conveying guide 23 connected between the end separation portion 21 and the fixing portion 22.

[0030] The conveying guide 23 serves as the main body of the connecting mechanism 2. Its length is determined according to the distance between the feeding mechanism 1 and the discharging mechanism 3 in actual production. It is used to ensure that the end separation part 21 can accurately reach the predetermined cutting position on the discharging mechanism 3.

[0031] In some embodiments, the conveying guide 23 is a slender rod-shaped structure with a rectangular cross-section, used to reduce the contact area with the inner wall of the webbing to avoid material blockage during conveying.

[0032] The conveying guide 23 is designed as a slender rod-shaped structure with a rectangular cross-section. Compared to a circular cross-section, the rectangular cross-section allows for surface contact between the top and bottom wide surfaces and the inner wall of the webbing, providing better support stability. Meanwhile, the narrow sides greatly reduce the contact area with the side walls of the webbing, significantly reducing the resistance generated by friction between the webbing and the fixture during conveying. This effectively avoids the risk of the webbing twisting, piling up, or even clogging on the fixture, ensuring a smooth and continuous production process.

[0033] In some embodiments, the cross-section of the end separation portion 21 is trapezoidal, and its width gradually increases from front to back, for smooth introduction and gradual opening of the webbing port.

[0034] The cross-section of the end separation part 21 is trapezoidal, forming a guiding slope that can easily and smoothly guide the webbing end that may not be fully stretched. As the fixture goes deeper or the webbing moves forward, the upper and lower layers of the webbing are gradually and gently separated, avoiding damage to the warp and weft threads of the webbing or jamming of the fixture that may be caused by forcibly stretching it.

[0035] In some embodiments, the maximum width of the end separation portion 21 is adapted to the width of the webbing opening to ensure that it can effectively and continuously open the webbing port, providing a stable separation cutting environment for subsequent hot cutting, and fundamentally preventing the high-temperature cutter head from causing the upper and lower layers of molten material to re-adhere together.

[0036] In some embodiments, the size of the hollow portion 31 of the discharge mechanism 3 is larger than the size of the end separation portion 21, ensuring that the downward path of the cutting device (such as a hot cutter) has sufficient operating margin, and its cutting head can completely pass through the webbing and have a certain amount of room for movement in the hollow portion, thereby completing a clean and neat cut. At the same time, it also ensures that the cutting head will not come into contact or collide with the end separation portion 21 of the connecting mechanism 2, which serves as a support, under any circumstances, thus protecting the cutting device and preventing damage to the fixture itself.

[0037] The working process of this utility model: The operator or automated equipment first inserts the head of the connecting mechanism 2, namely the end separation part 21, into the port of the hollow webbing from its trapezoidal tip. Since the end separation part 21 is a gradually expanding trapezoidal design, it can smoothly guide and initially open the webbing.

[0038] Next, the webbing is guided past the conveyor guide 23. The slender, rectangular rod-like structure of this part reduces friction with the inside of the webbing, allowing the webbing to easily fit onto the entire connecting mechanism 2.

[0039] Place the connecting mechanism 2, which has been threaded with webbing, into the working position. Align the spherical protrusion on the fixing part 22 at its rear end with and engage it into the engaging part 11 (e.g., the locking hole) on the feeding mechanism 1.

[0040] The spherical protrusion and the engaging part 11 form a tight fit, firmly fixing the connecting mechanism 2 axially to the feeding mechanism 1, preventing it from being dragged forward during the conveying of the webbing. At this time, the end separation part 21 at the front end of the connecting mechanism 2 extends directly below the hollow part 31 of the discharging mechanism 3.

[0041] The equipment starts up, and the feeding mechanism 1 begins to continuously and smoothly convey the webbing. The webbing, while being fitted onto the connecting mechanism 2, is pushed towards the discharging mechanism 3.

[0042] During the conveying process, the connecting mechanism 2 remains stationary because its rear end is fixed. The inside of the webbing moves relative to the stationary connecting mechanism 2 until the part of the webbing to be cut is sent to the cutting station of the discharge mechanism 3.

[0043] When the predetermined cutting point on the webbing reaches above the cutout portion 31 of the discharge mechanism 3, the conveying stops. At this time, the end separation portion 21 at the front end of the connecting mechanism 2 is located directly below this cutting point, and because its maximum width is adapted to the webbing opening, it has fully opened the webbing end, forming a physically isolated gap between the upper and lower webbing layers.

[0044] The hot cutting blade, positioned above the discharge mechanism 3, descends rapidly, its path precisely aligned with the cutout section 31.

[0045] The hot-cutting blade first contacts and expands the upper layer of the webbing, instantly melting the fabric at high temperature; it then continues downward, passing through the lower layer of the webbing. Due to the support of the end separation section 21, the upper and lower layers of webbing remain separated at the moment of cutting, and the cutter will never damage the connecting mechanism 2 below. After cutting, the hot-cutting blade immediately returns to its original position.

[0046] This utility model embodiment also provides a webbing cutting device, including the jig for webbing cutting described in the above embodiment.

[0047] In some embodiments, a hot cutting blade is also included, which is disposed above the discharge mechanism 3, and the downward path of the hot cutting blade corresponds to the position of the cutout portion 31.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A jig for webbing cutting, characterized by, include: The feeding mechanism is used to convey the webbing; A connecting mechanism for inserting and spreading the webbing; The discharge mechanism, connected to the feeding mechanism via the connecting mechanism, is used to receive and position the webbing; The front end of the connecting mechanism is provided with an end separation part for extending into and opening the webbing port during cutting, and the rear end is provided with a fixing part for engaging with the feeding mechanism to prevent the connecting mechanism from being pulled forward by the webbing. The material discharge mechanism has a cutout at the cutting station corresponding to the end separation part, which is used for the cutting equipment to descend and cut the webbing supported and spread by the end separation part.

2. The jig for webbing cutting according to claim 1, wherein The fixing part includes at least one engaging structure formed by a protrusion, and the feeding mechanism is correspondingly provided with an engaging part for accommodating and locking the engaging structure, so as to realize the axial positioning of the connecting mechanism.

3. The apparatus for cutting a webbing according to claim 2, wherein: The engaging structure consists of spherical protrusions symmetrically arranged on both sides of the fixing part, and the engaging part consists of a slot or hole that matches the shape of the spherical protrusions.

4. The apparatus for cutting a webbing according to claim 1, wherein: The connecting mechanism also includes a conveying guide connected between the end separation part and the fixing part.

5. The apparatus for cutting a webbing according to claim 4, wherein: The conveying guide is a slender rod-shaped structure with a rectangular cross-section, used to reduce the contact area with the inner wall of the webbing to avoid material blockage during conveying.

6. The jig for cutting webbing according to claim 4, characterized in that: The cross-section of the end separation part is trapezoidal, and its width gradually increases from front to back, which is used to smoothly introduce and gradually open the webbing port.

7. The apparatus for cutting a webbing according to claim 6, wherein: The maximum width of the end separation portion is adapted to the width of the webbing opening to ensure that the webbing can be effectively stretched throughout the entire end to prevent sticking.

8. The apparatus for cutting a webbing according to claim 1, wherein: The size of the hollowed-out portion of the discharge mechanism is larger than the size of the end separation portion to ensure that the cutting equipment has sufficient operating space and will not damage the connecting mechanism.

9. A webbing cutting apparatus characterized by comprising: Includes the jig for webbing cutting as described in any one of claims 1 to 8.

10. The webbing cutting apparatus according to claim 9, wherein It also includes a hot cutting blade disposed above the material discharge mechanism, the downward path of which corresponds to the position of the cutout portion.

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