Slidable rope adjusting pull tab assembly and production method thereof

Abstract

The invention relates to a slidable rope adjusting pull tab assembly, which solves the problem that the usability of the existing long pull rope pull tab structure is reduced, and comprises a pull rope, a pull rod, a pull rod and a pull rod, the fixed pull piece body is provided with a base part located in the center and wing parts extending from the base part to the two sides, and the first rope end and the second rope end are embedded and fixed in the wing parts at the two ends respectively, so that a rope ring part is formed by the pull rope between the first rope end and the second rope end; the movable pull piece body is of a hollow structure with a through channel, and the rope ring part is arranged in the through channel in a penetrating mode so that the movable pull piece body can be movably arranged on the rope ring part in a sleeving mode; the rope ring part is divided into a handle ring part between the fixed pull piece body and the movable pull piece body and a connecting ring part located at the free end of the rope ring part. The zipper pull accessory is applied to zipper pull accessory products of zippers and related production.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of zipper accessories, in particular to a slidable rope adjusting puller assembly and a production method thereof. BACKGROUND

[0002] The plastic puller with a pull rope on the zipper is a combination of functional design and practicality, commonly used in clothing, luggage or outdoor equipment. It includes a plastic puller body and a pull rope. The plastic puller body is usually made of lightweight plastics such as polypropylene (PP), polyethylene (PE) or ABS, which has the characteristics of corrosion resistance, wear resistance and low cost. The shape is usually flat, oval or ring-shaped, and the surface may have texture or brand logo to enhance grip. The connection method is to fix it directly on the top of the zipper slider (puller) through injection molding process to ensure synchronous movement with the slider during operation. The pull rope is usually made of nylon rope, polyester fiber or elastic rope, which has high strength and tensile resistance. This structure has the advantages of easy use, anti-slip, improved decoration and durability, and is widely used in clothing, luggage, outdoor equipment and industrial products.

[0003] The basic structure is shown in the technical solution of the authorized announcement No. CN 103476291 B, which proposes a single-piece zipper puller, including: a molded elastic puller body; a molded tether defining a loop integrally formed with the puller body, the tether having a length extending from the puller body.

[0004] In the current structure, the puller body and pull rope design need to consider factors such as ease of use, and when the pull rope is designed to be longer, it will cause problems such as difficulty for consumers to grasp, the puller body to be easily floating, and inconvenience in arranging. SUMMARY

[0005] Therefore, the present application provides a slidable rope adjusting puller assembly and shows its production method, which solves the problem of the current long pull rope puller structure with reduced ease of use.

[0006] To achieve the above purpose, the present application is realized by the following technical solutions:

[0007] A slidable rope adjusting puller assembly, comprising:

[0008] a pull rope with a first rope end and a second rope end;

[0009] a fixed puller body having a central base and wing portions extending from the base to both sides, the first rope end and the second rope end are respectively embedded and fixed in the two end wing portions, so that the pull rope between the first rope end and the second rope end forms a rope loop portion;

[0010] The movable pull-tab body is a hollow structure with a through channel, the rope ring part is arranged in the through channel, so that the movable pull-tab body can be movably sleeved on the rope ring part, so that the rope ring part is divided into a handle ring part between the fixed pull-tab body and the movable pull-tab body and a connecting ring part at the free end of the rope ring part.

[0011] Preferably, the movable pull-tab body is provided with a plurality of through grooves in communication with the through channel, and the rope ring part can be shown at each of the through grooves.

[0012] Preferably, the two side wings are symmetrically distributed structures inclined towards one side of the movable pull-tab body.

[0013] Preferably, the movable pull-tab body is a rectangular block structure, and the through channel extends along the long end thereof.

[0014] Preferably, the base surface is provided with an anti-skid protrusion.

[0015] A production method of a slidable rope adjusting pull-tab assembly, comprising the following steps:

[0016] a. Taking a continuously conveyed pull rope, conveying along X1, and fixing the end of the continuously conveyed pull rope;

[0017] b. Setting a pulling-out mechanism, setting a cutting mechanism at the input end of the pulling-out mechanism, pulling out the pull rope along Y and cutting the pull rope by the cutting mechanism to form a single rope body with a first rope end, a second rope end and a rope ring part, Y being the vertical direction of X1; the continuously conveyed pull rope that is cut continues to be conveyed, and the cut end is fixed after reaching a predetermined position, and the next cycle is entered;

[0018] c. Setting a forming mold at the output end of the pulling-out mechanism, the forming mold sequentially sets forming cavities one and two respectively for injection molding of the fixed pull-tab body and the movable pull-tab body, and the forming cavity one is provided with a guide flange for guiding the first rope end and the second rope end, and the pulling-out mechanism pulls the single rope body so that the first rope end and the second rope end of the single rope body fall into the forming cavity one of the mold;

[0019] d. The mold one performs injection to form the fixed pull-tab body, so that it is combined with the first rope end and the second rope end; the mold two performs injection to form the movable pull-tab body;

[0020] e. Setting a rope threading mechanism on one side of the forming mold, grabbing and pulling the rope ring part of the single rope body through the movable pull-tab body to obtain the combined module pull-tab.

[0021] f. Repeat the above steps b, c, d, e to realize continuous production of the pull-tab.

[0022] Preferably, the rope threading mechanism comprises a hook member with a hook structure at the end, a guide assembly for guiding the hook member, and a driving member for driving the hook member to reciprocate.

[0023] The hook member is driven by the driving member, passes through the through channel of the movable pull tab body, hooks the rope ring part, and resets to complete the rope threading action of the rope ring part and the movable pull tab body.

[0024] Preferably, the first rope end and the second rope end are embedded in the first forming cavity with a size of 1 / 3-1 times the length of the wing part.

[0025] Preferably, the pulling mechanism comprises a telescopic rod, a driving motor and a transmission assembly matched with the telescopic rod, and a mechanical claw at the end of the telescopic rod for grabbing the pulling rope.

[0026] Preferably, the cutting mechanism comprises a cutter cylinder with a vertical output direction and a high-temperature cutter installed at the output end of the cutter cylinder.

[0027] By adopting the foregoing technical solutions, the present application has the following beneficial effects:

[0028] The slidable rope adjusting pull tab assembly provided by the present application realizes multiple technical advantages through the cooperative design of the fixed pull tab body and the movable pull tab body. The fixed pull tab body adopts a symmetrical structure of a central base and two side wings, the first rope end and the second rope end are respectively embedded in the wings, the rigid connection between the wings and the base is used to disperse the pulling rope stress and avoid local stress concentration, the load bearing strength of the handle ring part is significantly improved, and the structure has high stability. The movable pull tab body is sleeved on the rope ring part through the through channel, and the length ratio of the handle ring part and the connecting ring part can be freely adjusted through sliding adjustment. The structure can adapt to the requirements of different use scenarios (such as hand carrying, hanging or binding) for the size of the ring body, and can realize rapid positioning through the relative position of the fixed pull tab body and the movable pull tab body, and has outstanding flexibility. The rope ring part is directly formed by embedding the two ends of the pulling rope, without additional connecting parts, which simplifies the assembly process and reduces the failure rate, and the handle ring part and the connecting ring part are continuous structures of the same rope, which avoids the strength loss caused by the traditional sewing or knotting process.

[0029] In production, multiple technical advantages are realized through process design and mold integration. A pipeline mode of continuous conveying, cutting-off-circulating injection-roping is adopted, each step seamlessly connects (such as automatically entering the next cycle after cutting-off, injection and roping are performed synchronously), the production cycle of a single pull-tab is shortened to less than 1 / 3 of the traditional process, and the production capacity is significantly improved. The cutting-off, rope positioning, injection and roping actions are automatically completed by mechanical mechanisms, reducing manual intervention, reducing operation errors and labor costs. The fixed pull-tab body and the movable pull-tab body are successively injected through the molding cavity one and the molding cavity two of the same molding mold, share the injection system such as feeding and pouring, avoid repeated clamping and alignment, and the injection efficiency is improved by about 40%. The guide flange of the mold precisely guides the first rope end and the second rope end to fall into the molding cavity one, ensures that the rope end embedding depth and angle meet the preset, and avoids injection defects such as overflow, uneven exposure of the rope end and the like caused by position deviation. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic diagram of the pull-tab of the embodiment of the present application.

[0031] Figure 2 It is a product appearance schematic diagram of the pull-tab of the embodiment of the present application.

[0032] Figure 3 It is a molding equipment schematic diagram of the embodiment of the present application.

[0033] Figure 4 It is a structure schematic diagram of the rope guiding process of the embodiment of the present application (top view direction).

[0034] Figure 5 It is a structure schematic diagram of the rope guiding process of the embodiment of the present application (top view direction).

[0035] The drawings show: 100, rope; 101, first rope end; 102, second rope end; 103, rope ring part; 103a, handle ring part; 103b, connecting ring part; 200, fixed pull-tab body; 200a, base; 200b, wing part; 201, anti-skid convex part; 300, movable pull-tab body; 301, through channel; 302, through slot; 1, pulling-out mechanism; 11, telescopic rod; 12, driving motor; 13, mechanical claw; 2, cutting-off mechanism; 3, molding mold; 31, molding cavity one; 311, guide flange; 311a, inner edge; 311b, outer edge; 32, molding cavity two; 4, rope threading mechanism; 41, pulling hook piece; 411, guide groove; 42, fixed guide block; 43, movable guide block; 431, guide protrusion; 44, slide rail assembly. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with specific examples, so that how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0037] Embodiments

[0038] Reference Figure 1 and Figure 2 A slidable rope adjusting pull-tab assembly comprises:

[0039] A pull rope 100 with a first rope end 101 and a second rope end 102;

[0040] A fixed pull-tab body 200 with a central base 200a and wing portions 200b extending from the base 200a to both sides, the first rope end 101 and the second rope end 102 are respectively embedded and fixed in the wing portions 200b at both ends, so that the pull rope 100 between the first rope end 101 and the second rope end 102 forms a rope loop portion 103; in this embodiment, the wing portions 200b on both sides are symmetrically distributed structures inclined towards one side of the movable pull-tab body 300, which is more in line with ergonomic design, the inclined wing portions 200b form a natural finger wrapping space, and when grabbing, the fingers can naturally fit the inclined surface of the wing portions 200b, avoiding rope slipping and improving the stability of grabbing; the symmetrically distributed wing portions 200b make the pulling force evenly dispersed to both ends of the pull rope 100, reducing the risk of rope twisting or deformation of the fixed pull-tab body 200 caused by unilateral stress, so that the pull-tab stress is uniform;

[0041] The movable pull tab body 300 is a hollow structure with a through channel 301, and the rope ring part 103 is arranged in the through channel 301, so that the movable pull tab body 300 can be movably sleeved on the rope ring part 103, so that the rope ring part 103 is divided into a handle ring part 103a between the fixed pull tab body 200 and the movable pull tab body 300 and a connecting ring part 103b at the free end of the rope ring part 103. The movable pull tab body 300 is a rectangular block structure, and the through channel 301 extends along the long end thereof; wherein the long end of the movable pull tab body 300 is designed to be 10%-25% of the circumference of the rope ring part 103, so as to ensure that the through channel 301 and the rope ring part 103 have sufficient contact area, while retaining sufficient adjustment space. This proportion avoids the sliding out of control of the movable pull tab body 300 due to too short coverage, and prevents the coverage from being too long to limit the adjustment range of the handle ring part 103a, achieving a precise balance between "adjustability" and "stability"; at the same time, the block structure can increase the self-weight, combined with the frictional resistance of the through channel 301 and the rope ring part 103, so that the movable pull tab body 300 generates greater static friction force when the handle ring part 103a is stressed. Even under external force, the movable pull tab body 300 can still maintain a relatively fixed position, avoiding accidental changes in the size of the ring body due to sliding, and significantly improving the reliability of use.

[0042] The slidable rope adjusting pull tab assembly provided by the technical solution realizes multiple technical advantages through the cooperative design of the fixed pull tab body 200 and the movable pull tab body 300. The fixed pull tab body 200 adopts a symmetrical structure of a central base 200a and two side wings 200b, and the first rope end 101 and the second rope end 102 are respectively embedded in the wings 200b, and the rigid connection of the wings 200b and the base 200a is used to disperse the stress of the pulling rope 100, avoid local stress concentration, significantly improve the carrying capacity of the handle ring part 103a, and have high structural stability. The movable pull tab body 300 is sleeved on the rope ring part 103 through the through channel 301, and the length ratio of the handle ring part 103a and the connecting ring part 103b can be freely adjusted through sliding adjustment, which can not only adapt to the demand for the size of the ring body in different use scenarios (such as hand carrying, hanging or binding), but also can realize rapid positioning through the relative position of the fixed pull tab body 200 and the movable pull tab body 300, and has outstanding flexibility; the rope ring part 103 is directly formed by embedding the two ends of the pulling rope 100, without the need for additional connecting parts, which simplifies the assembly process and reduces the failure rate, and the handle ring part 103a and the connecting ring part 103b are continuous structures of the same rope, avoiding the strength loss caused by the traditional sewing or knotting process.

[0043] In this embodiment, the active pull-tab body 300 is provided with four matrix-arranged through grooves 302 connected with the through channel 301, and the rope loop part 103 can be shown at each through groove 302. The through groove 302 structure has a dual optimization effect, one is friction enhancement, the through groove 302 is connected with the through channel 301, the rope loop part 103 is partially exposed, the contact when pulling the pull-tab by fingers is increased, the friction resistance when sliding adjustment is improved, and the operation slip is prevented; the other is tactile feedback, the user can directly perceive the position change of the rope loop part 103 through the through groove 302, and combined with the sliding resistance of the active pull-tab body 300, an explicit operation tactile feedback is formed, and the adjustment amplitude is conveniently and accurately controlled.

[0044] In this embodiment, the surface of the base 200a is provided with an anti-skid convex part 201. The anti-skid convex part 201 increases the contact friction force between the fingers and the fixed pull-tab body 200, especially in the wet and slippery or fast operation scene, the risk of hand slip is significantly reduced, and the anti-skid effect is achieved; at the same time, the anti-skid convex part 201 can be designed as a brand LOGO, a functional symbol or a decorative line, which not only improves the product recognition, but also enhances the visual level through the three-dimensional structure, and takes into account the practicability and the aesthetics.

[0045] In summary, through structural innovation and detail optimization, the assembly realizes efficient balance among strength, adjustability, operation feeling and aesthetics, and is suitable for rope adjustment requirements in many fields such as luggage, sports equipment and pet products.

[0046] In production, referring to Figures 3 to 5 , a continuous automatic production form is adopted, specifically a production method of a slidable rope adjustment pull-tab assembly, comprising the following steps:

[0047] a. Take a continuously conveyed pull rope 100, convey it along X1, and fix the end of the continuously conveyed pull rope 100;

[0048] b. Set a pulling-out mechanism 1, set a cutting mechanism 2 at the input end of the pulling-out mechanism 1, pull out the pull rope 100 along Y and cut the pull rope 100 by the cutting mechanism 2 to form a single rope body with a first rope end 101, a second rope end 102 and a rope loop part 103, Y is the vertical direction of X1; the cut continuously conveyed pull rope 100 continues to convey, and its cut end is fixed after reaching the predetermined position, and waits for the next cycle action;

[0049] c. A forming mold 3 is arranged at the output end of the pulling mechanism 1. The forming mold 3 is sequentially provided with a forming cavity one 31 and a forming cavity two 32 for fixing the pull tab body 200 and the movable pull tab body 300 for injection molding, respectively. The side of the forming cavity one 31 is provided with a guide flange 311 for guiding the first rope end 101 and the second rope end 102. The pulling mechanism 1 pulls the single rope body so that the first rope end 101 and the second rope end 102 of the single rope body fall into the forming cavity one 31 of the mold. The guide flange 311 is as a whole as shown in Figure 4 , which is divided into an inner edge 311a inside the pull rope 100 and an outer edge 311b outside. The two edges cooperate to guide the pull rope 100 to the desired distribution. The guide flange 311 is a lifting structure to avoid the pulling path of the pulling mechanism 1 during the guiding process. After the pulling mechanism passes through the forming cavity one 31, the pull rope 100 is sequentially lifted and clamped. After the cutting mechanism 2 operates, the pulling mechanism 1 continues to pull so that the first rope end 101 and the second rope end 102 are in a predetermined position.

[0050] In this embodiment, the first rope end 101 and the second rope end 102 embedded in the forming cavity one 31 have a size of 1 / 3-1 times the length of the wing part 200b. The design of the rope end embedding size achieves a balance between structural strength and appearance. When the embedding length is greater than or equal to 1 / 3 of the length of the wing part 200b, the contact area between the pull rope 100 and the fixed pull tab body 200 is sufficient to be wrapped by the injection molding material to form effective anchoring. Through the tension test verification, it can withstand ≥50N tension without falling out, providing a lower limit guarantee. When the embedding length is less than or equal to the length of the wing part 200b, the material accumulation in the center area of the wing part 200b caused by the excessive length of the rope end is avoided (shrinkage hole is easy to produce during injection molding). At the same time, the rope end is also prevented from being eccentric to the wing part 200b due to the excessive length, which affects the appearance and weight distribution, thereby ensuring the flat appearance and uniform weight distribution of the product. The size of the rope end embedded in the forming cavity one 31 is strictly limited by the mold guide flange 311, which not only ensures the bonding strength between the pull rope 100 and the fixed pull tab body 200 (to avoid the risk of pulling out caused by embedding too shallow), but also ensures the symmetry of the wing part 200b and the absence of exposed burrs on the rope end, thereby improving the consistency of the product appearance.

[0051] d. The mold one is used for injection molding to form the fixed pull tab body 200, which is combined with the first rope end 101 and the second rope end 102; and the mold two is used for injection molding to form the movable pull tab body 300.

[0052] e. A rope threading mechanism 4 is arranged on one side of the forming mold 3 to grab and pull the rope ring part 103 of the single rope body through the movable pull tab body 300, thereby obtaining the combined module pull tab.

[0053] f. The steps b, c, d, and e are repeated to realize the continuous production of the pull tab.

[0054] Wherein, the rope threading mechanism 4 includes a draw hook piece 41 with a hook structure at the end, a guide assembly for guiding the draw hook piece 41, a driving piece for driving the draw hook piece to reciprocate, which can be a linear driving mechanism such as a cylinder and related other similar components, here taking the cylinder as an example; the draw hook piece 41 is driven by the driving piece, passes through the through channel 301 of the movable pull tab body 300, hooks the rope ring part 103, and after resetting, completes the rope threading action of the rope ring part 103 and the movable pull tab body 300. During the whole process, the specific action adopted by the embodiment is the action flow of lifting-up, hooking-down, retreating-resetting, and lifting-up-releasing of the draw hook piece 41, so the guide structure in the action process of the draw hook piece 41 needs to be designed on the corresponding guide assembly to complete the action; specifically, the guide assembly includes a fixed guide block 42, a movable guide block 43, and a slide rail assembly 44 arranged at the bottom of the movable guide block 43, the movable guide block 43 has a guide protrusion 431, and the draw hook piece 41 is provided with a guide groove 411 structure matched with the guide protrusion 431; during this process, the draw hook piece 41 is stretched out from the surface of the fixed guide block 42, is lifted up when passing through the guide protrusion 431 of the movable guide block 43, and avoids the rope ring part 103;

[0055] Then continues to stretch out to make the guide groove 411 cooperate with the guide protrusion 431, at this time the draw hook piece 41 falls down, and the hook structure falls into the rope ring part 103, and the draw hook piece 41 can hook the rope ring part 103 during the resetting process;

[0056] During the resetting process of the draw hook piece 41, the movable guide block 43 slides on the slide rail assembly 44 under the pulling of the guide protrusion 431, and the draw hook piece 41 always maintains the state of hooking the rope ring part 103 during this process;

[0057] Continues to reset to complete the rope threading action;

[0058] After that, the movable guide block 43 contacts with the fixed guide block 42 and is limited by the fixed guide block 42 and cannot continue to slide, at this time the guide groove 411 on the draw hook piece 41 separates from the guide protrusion 431, the draw hook piece 41 is lifted up, and the rope ring part 103 is released, completing the rope releasing action after the rope threading. The draw hook piece 41 is driven by the driving piece, passes through the through channel 301 of the movable pull tab body 300, hooks the rope ring part 103, and after resetting, completes the rope threading action of the rope ring part 103 and the movable pull tab body 300.

[0059] The hook structure of the hook member 41 is matched in size with the rope ring part 103, and in combination with the movement track of the guide assembly, the rope ring part 103 can be accurately positioned and hooked, avoiding the problems of low efficiency and high cost of subsequent manual rope threading; the driving member drives the hook member 41 to reciprocate, and the single threading action takes less than 2 seconds, and can be synchronized with the injection molding process, greatly shortening the production rhythm; the hook structure can be adapted to different rope diameters and the size of the through channel 301 of the movable pull tab body 300, and by adjusting the stroke of the guide assembly, multiple product production models can be compatible.

[0060] In the embodiment, the pulling mechanism 1 includes a telescopic rod 11, a driving motor 12 and a transmission assembly matched with the telescopic rod 11, and a mechanical claw 13 arranged at the end of the telescopic rod 11 to grab the pull rope 100. The telescopic rod 11 cooperates with the mechanical claw 13 to control the pulling length (error ≤0.5mm) through the driving motor 12, to ensure that the length of the single rope body after cutting meets the design requirements; after the mechanical claw 13 grabs the pull rope 100, the telescopic rod 11 is pulled out along the Y direction to the cutting mechanism 2, and is matched with the X1 continuous conveying of the conveying belt, to realize the three-axis linkage of “conveying-pulling-cutting” of the pull rope 100, with high positioning accuracy; compared with manual pulling and cutting, the grabbing action of the mechanical claw 13 is accurate, and the grabbing speed is improved by more than 3 times, which can adapt to high-speed production rhythm.

[0061] In the embodiment, the cutting mechanism 2 includes a cutter cylinder with a vertical output direction and a high-temperature cutter installed at the output end of the cutter cylinder. In the production process, the pull rope 100 (such as nylon, polyester fiber) is instantaneously melted and broken by the high-temperature cutter, and the fiber end is fused and bonded, avoiding the problems of loose fiber and exposed burr caused by traditional cold knife cutting; the cutter cylinder drives the high-temperature cutter to vertically press down, the flatness of the cutting surface is ≤0.2mm, and the end is in the form of a molten hemisphere, without the need for secondary trimming to directly enter the injection molding process, improving the product appearance quality and the end strength of the pull rope 100.

[0062] In the production, the technical scheme realizes multiple technical advantages through process design and mold integration. The continuous conveying, circulation cutting-injection-molding-roping-through pipeline mode is adopted, and each step is seamlessly connected (such as automatically entering the next cycle after cutting, and injection molding and rope threading are performed synchronously). The production cycle of a single pull-tab is shortened to less than 1 / 3 of the traditional process, and the production capacity is significantly improved. The cutting, rope positioning, injection molding, and rope threading actions are automatically completed by mechanical mechanisms, reducing manual intervention and reducing operation errors and labor costs. The fixed pull-tab body 200 and the movable pull-tab body 300 are sequentially injection molded through the molding cavity one 31 and the molding cavity two 32 of the same molding mold 3, share the injection molding system such as feeding and pouring, avoid repeated clamping and alignment, and improve the injection molding efficiency by about 40%. The guide flange 311 of the mold precisely guides the first rope end 101 and the second rope end 102 to fall into the molding cavity one 31, ensures that the rope end embedding depth and angle meet the preset, and avoids injection molding defects such as overflow, uneven rope end exposure, and the like caused by position deviation.

[0063] In summary, the production method integrates automatic equipment, optimizes the mold, and precisely controls the process parameters, which improves the production efficiency while ensuring the reliability of the product structure, the consistency of the appearance, and the stability of the production process, and is suitable for large-scale industrial production scenarios.

[0064] The basic structure of the injection mold is not described in detail in the technical scheme, and its content is well known to those skilled in the art, and can also be found in the applicant's prior application. This is not the improvement direction of the technical scheme, and will not be described here.

[0065] Although the present application is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present application without departing from the spirit and scope of the present application as defined in the appended claims, and all such changes are within the protection scope of the present application.

Claims

1. A slidable cord adjustment pull tab assembly, comprising: The utility model relates to a kind of pull rope and its forming device, including: Pull rope (100), the pull rope (100) with first rope end (101), second rope end (102); Fixed pull tab body (200), the fixed pull tab body (200) with centrally located base (200a) and the wing portion (200b) extended to both sides by base (200a), the first rope end (101) and second rope end (102) are respectively embedded fixed in two end wing portion (200b), so that the pull rope (100) between the first rope end (101) and second rope end (102) forms rope loop portion (103); Movable pull tab body (300), the movable pull tab body (300) is hollow structure with through channel (301), the rope loop portion (103) is arranged in the through channel (301) to make the movable pull tab body (300) can be moved and set on the rope loop portion (103), so that the rope loop portion (103) is divided into the handle loop portion (103a) between the fixed pull tab body (200) and the movable pull tab body (300) and the connecting loop portion (103b) at the free end of rope loop portion (103).

2. A slidable cord adjustment pull piece assembly according to claim 1, wherein: The movable pull tab body (300) is provided with a plurality of through grooves (302) communicated with the through channel (301), and the rope loop portion (103) can be shown at each through groove (302).

3. A slidable cord adjustment pull piece assembly according to claim 1, wherein: Two side wing portions (200b) are symmetrically distributed structures inclined to one side of the movable pull tab body (300).

4. A slidable cord adjustment pull piece assembly according to claim 1, wherein: The movable pull tab body (300) is rectangular block structure, and the through channel (301) extends along the long end thereof.

5. A slidable cord adjustment pull piece assembly according to claim 1, wherein: The surface of the base (200a) is provided with anti-skid convex parts (201).

6. A method of producing a slidable cord adjustment pull tab assembly according to claim 1, wherein, The utility model relates to a kind of pull rope and its forming device, including: a, take a continuous conveying pull rope (100), along X1 is conveyed, and the end of continuous conveying pull rope (100) is fixed; B, set up a pulling mechanism (1), the input end of pulling mechanism (1) is provided with cutting mechanism (2), and the pull rope (100) is pulled out along Y and is cut by cutting mechanism (2) to form a single rope body with first rope end (101), second rope end (102) and rope loop portion (103), Y is the vertical direction of X1;The cut continuous conveying pull rope (100) continues to convey, and the cut end is fixed after reaching the predetermined position, and the next cycle action is entered; C, forming die (3) is arranged at the output end of the pulling mechanism (1), and the forming die (3) is sequentially provided with forming cavity one (31) and forming cavity two (32) for fixed pull tab body (200) and movable pull tab body (300) injection molding respectively, and the circumference of the forming cavity one (31) is provided with guide flange (311) for guiding the first rope end (101) and second rope end (102), and the pulling mechanism (1) pulls the single rope body, so that the first rope end (101) and second rope end (102) of the single rope body fall into the forming cavity one (31) of the mold. d. The first mold is used to form the fixed pull-tab body (200) by injection molding, and the fixed pull-tab body (200) is combined with the first rope end (101) and the second rope end (102); the second mold is used to form the movable pull-tab body (300) by injection molding; e. A rope threading mechanism (4) is arranged on one side of the forming mold (3), the rope loop part (103) of the single rope is grabbed and pulled to pass through the movable pull-tab body (300), and the combined module pull-tab is obtained. f. The steps b, c, d and e are repeated to realize continuous production of the pull-tab.

7. A method of producing a slidable cord adjustment pull tab assembly according to claim 6, wherein: The rope threading mechanism (4) comprises a hook member (41) with a hook structure at the end, a guide assembly for guiding the hook member (41), and a driving member for driving the hook member to reciprocate. The hook member (41) is driven by the driving member, hooks the rope loop part (103) after passing through the through channel (301) of the movable pull-tab body (300), and completes the rope threading action of the rope loop part (103) and the movable pull-tab body (300) after resetting.

8. A method of producing a slidable cord adjustment pull tab assembly according to claim 6, wherein: The first rope end (101) and the second rope end (102) are embedded in the forming cavity one (31), and the size of the forming cavity one (31) is 1 / 3-1 times of the length of the wing part (200b).

9. A method of producing a slidable cord adjustment pull tab assembly according to claim 6, wherein: The pulling-out mechanism (1) comprises a telescopic rod (11), a driving motor (12) and a transmission assembly matched with the telescopic rod (11), and a mechanical claw (13) arranged at the end of the telescopic rod (11) to grab the pull rope (100).

10. A method of producing a slidable cord adjustment pull tab assembly according to claim 6, wherein: The cutting mechanism (2) comprises a cutter cylinder with a vertical output direction and a high-temperature cutter installed at the output end of the cutter cylinder.

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