A manufacturing process for straight-strip injection-molded hook and loop fasteners

Abstract

This invention discloses a manufacturing process for a straight-line injection-molded hook-and-loop fastener, comprising a loop and a braided layer. One end of the loop has a braided layer and a protective layer. One side of the protective layer has several openings corresponding to the hook body. The other side of the protective layer has a magnetically conductive layer and a wear-resistant layer. A connecting post and a hook body are provided on a substrate. The connecting post and hook body are engaged with the openings in the protective layer, thereby connecting the braided layer and the protective layer. The protective layer has a magnetically conductive layer, allowing it to adhere to magnetic objects. Furthermore, the loops on the braided layer can be used to adhere the hooked object, achieving a connection between plastic and metal. The braided layer and adhesive layer inside the overall structure provide cushioning. Moreover, the hook body on one of the connecting posts, after entering the openings in the protective layer, engages with the protective layer, greatly increasing the stability of the installation connection and effectively preventing the protective layer and magnetically conductive layer from detaching.

Description

Technical Field

[0001] This invention patent relates to the field of fastener technology, specifically a production process for a straight strip injection-molded hook and loop fastener. Background Technology

[0002] Currently, many domestic car seat manufacturers are gradually abandoning the traditional method of installing seat covers by binding them with wire.

[0003] The technology has shifted towards a more widespread use of injection-molded hooks and fabric-bonded installation methods. Injection-molded hooks are widely used by major automotive seat manufacturers.

[0004] The company's favor and praise. However, the injection-molded hooks used in car seats are usually produced by spraying foam and...

[0005] The car seat foam is secured. Since the hook and loop fasteners primarily function to secure the seat cover, they will be used when subjected to a certain amount of traction.

[0006] It is prone to detachment and separation, resulting in poor connection between the hook and loop fasteners and the seat foam.

[0007] The purpose of this invention is to provide a manufacturing process for straight-strip injection-molded hook and loop fasteners, in order to solve the problems mentioned in the background art.

[0008] The questions raised.

[0009] To achieve the above objectives, this invention provides the following technical solution:

[0010] A manufacturing process for straight-line injection-molded hook and loop fasteners, comprising loops and a protective layer, wherein the loops...

[0011] One end is provided with a braided layer, an adhesive layer, a substrate, and a hook in sequence, and one side of the protective layer is provided with a plurality of openings.

[0012] Corresponding to the hook body, the other side of the protective layer is provided with a magnetic conductive layer and a wear-resistant layer;

[0013] Production process steps:

[0014] S1. Determine the width of the item to be knitted, then cast on stitches according to this width using the long tail cast-on method, placing the yarn on one...

[0015] Wrap the yarn around a needle once, then insert the needle into the loop and pull the yarn out to form a new stitch. Repeat this process.

[0016] Continue casting on until the required number of stitches is reached. After casting on, evenly distribute the loops on two or three needles.

[0017] Then, circular weaving is performed to achieve the processing technology of the woven layer and the loop;

[0018] S2, Select hot melt adhesive. Preheat the hot melt adhesive and place it in an insulated container to melt it.

[0019] Apply hot melt adhesive to the surface of the braided layer, and then evenly coat the braided layer with hot melt adhesive around one side of the braided layer.

[0020] And draw a circle in the middle of the woven layer with hot melt adhesive;

[0021] S3, the substrate material is quickly bonded to the braided layer with the hot melt adhesive mentioned above, and the two are quickly bonded together. A certain pressure is applied to make the hot melt adhesive fully contact and cure.

[0022] S4, Place a portion of the material into the injection molding machine, and then use the injection molding machine to transfer this material into the mold. The mold moves up and down...

[0023] After mold closing, the hollow area is designed with hook-shaped grooves and cylindrical grooves. The material is extruded and formed into a hooked cylinder.

[0024] One end of the body plane is thermally fused to the substrate;

[0025] S5, another portion of the material is introduced into another mold, where the mold closing position is set with a hook-shaped protrusion.

[0026] After the material is formed, this part of the material surface is a template with a protective layer of hook-shaped grooves, and the hook-shaped grooves of the template can interact with...

[0027] The hook-shaped protrusions on the substrate are interlocked;

[0028] S6, a portion of the synthetic material is mixed with magnetic metal powder and placed in a mixer to synthesize a magnetic material, which is...

[0029] Magnetic materials are malleable;

[0030] S7, the magnetic material is fed into the flattening and forming machine to process the magnetic material into a magnetic flexible sheet, through...

[0031] The hot melt adhesive bonds with the template of the protective layer;

[0032] S8, finally, by uniformly adding an adhesive substance to a wear-resistant layer, the adhesive side of the wear-resistant layer is bonded to the protective layer.

[0033] The magnetic flexible boards are bonded together.

[0034] As a further aspect of this invention patent:

[0035] The magnetic material is mixed with non-magnetic material inside the mixer during the mixing process.

[0036] As a further aspect of this invention patent:

[0037] During the flattening process of the magnetic material, the surfaces of the flattening machine that come into contact with the material are all non-magnetic.

[0038] Compared with the prior art, the beneficial effects of this invention patent are:

[0039] In use, this invention patent divides the hook and loop fastener into one or two parts, one of which is woven.

[0040] The layer securely holds the adhesive layer, substrate, and loops together. Connecting posts and hooks are provided on the substrate to facilitate connection.

[0041] The connecting post and hook are inserted into the opening in the protective layer, thus connecting the braided layer and the protective layer. The protective layer is equipped with...

[0042] It has a magnetic layer that allows it to adhere to magnetic objects. In addition, loops are incorporated into the woven layer, which can be used to attach hooks.

[0043] This structure connects plastic and metal, incorporating a braided layer and an adhesive layer within the overall structure to provide cushioning for the connected objects.

[0044] The device has an impact effect, and a hook is provided on a connecting column. After entering the opening of the protective layer, the hook engages with the protective layer.

[0045] This greatly increases the protective stability of the installation connection and effectively prevents the protective layer and magnetic conductive layer from falling off. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of a cross-section of the present invention.

[0047] In the diagram: 1. Loop; 2. Braided layer; 3. Adhesive layer; 4. Base plate; 5. Connecting post; 6. Hook; 7. Protective layer; 8.

[0048] Magnetic conductive layer. Detailed Implementation

[0049] The technical solutions in the embodiments of the present invention will now be explained in conjunction with the accompanying drawings.

[0050] Clearly, the described embodiments are only a part of the embodiments of this invention patent, and not all of them.

[0051] Examples. Based on the examples in this patent, those skilled in the art can, without inventive effort, learn how to implement them.

[0052] All other embodiments obtained are within the scope of protection of this invention.

[0053] Please refer to Figure 1, which illustrates a manufacturing process for a straight-line injection-molded hook and loop fastener. The straight-line injection-molded hook and loop fastener includes a loop 1 and a protective layer.

[0054] 7. One end of the loop 1 is sequentially provided with a braided layer 2, an adhesive layer 3, a base plate 4, and a hook 6, and one side of the protective layer 7 is provided with several

[0055] The opening is dry and several openings correspond to the hook body 6. The other side of the protective layer 7 is provided with a magnetic conductive layer 8 and a wear-resistant layer.

[0056] Production process steps:

[0057] S1. Determine the width of the item to be knitted, then cast on stitches according to this width using the long tail cast-on method, placing the yarn on one...

[0058] Wrap the yarn around a needle once, then insert the needle into the loop and pull the yarn out to form a new stitch. Repeat this process.

[0059] Continue casting on until the required number of stitches is reached. After casting on, evenly distribute the loops on two or three needles.

[0060] Then, circular weaving is performed to achieve the processing technology of the woven layer and the loop;

[0061] S2, Select hot melt adhesive. Preheat the hot melt adhesive and place it in an insulated container to melt it.

[0062] Apply hot melt adhesive to the surface of the braided layer, and then evenly coat the braided layer with hot melt adhesive around one side of the braided layer.

[0063] And draw a circle in the middle of the woven layer with hot melt adhesive;

[0064] S3, the substrate material is quickly bonded to the braided layer using the aforementioned hot melt adhesive, rapidly bonding the two together.

[0065] Apply a certain amount of pressure to ensure the hot melt adhesive fully contacts and cures;

[0066] S4, Place a portion of the material into the injection molding machine, and then use the injection molding machine to transfer this material into the mold. The mold moves up and down...

[0067] After mold closing, the hollow area is designed with hook-shaped grooves and cylindrical grooves. The material is extruded and formed into a hooked cylinder.

[0068] One end of the body plane is thermally fused to the substrate; S5, another part of the material is introduced into another mold, and the mold closing position in the other mold is set with a hook-shaped protrusion.

[0069] After the material is formed, this part of the material surface is a template with a protective layer of hook-shaped grooves, and the hook-shaped grooves of the template can interact with...

[0070] The hook-shaped protrusions on the substrate are interlocked;

[0071] S6, a portion of the synthetic material is mixed with magnetic metal powder and placed in a mixer to synthesize a magnetic material, which is...

[0072] Magnetic materials are malleable;

[0073] S7, the magnetic material is fed into the flattening and forming machine to process the magnetic material into a magnetic flexible sheet, through...

[0074] The hot melt adhesive bonds with the template of the protective layer;

[0075] S8, finally, by uniformly adding an adhesive substance to a wear-resistant layer, the adhesive side of the wear-resistant layer is bonded to the protective layer.

[0076] The magnetic flexible boards are bonded together.

[0077] In the above steps, a braiding method is used to incorporate loops into the braided layer, which facilitates connection with coils from any other device.

[0078] The layers are bonded together, and hot melt adhesive is applied to the center and around the perimeter of the braided layer to form adhesive layer 3. When the braided layer is bonded...

[0079] When bonding to the substrate, the hot melt adhesive is pressed between the substrate and the braided layer, which is a more efficient method than uniform application.

[0080] By squeezing, the gap between the two layers will be smaller, and excess adhesive will be squeezed inward, preventing the adhesive from sticking to the substrate and the braided layer.

[0081] In addition, the hook surface and hook groove are extruded and formed by molding, and then attached to the base surface and the protective layer. At the same time, on the other side of the protective layer...

[0082] Equipped with a magnetic panel, it can be attached to a magnetizable surface for fixation and support by directly applying magnetic powder to the plastic material.

[0083] The combination of materials increases overall flexibility, resulting in a more aesthetically pleasing overall appearance compared to attaching magnetic strips to the panel, and it is less likely to break easily.

[0084] To prevent magnetic powder from adsorbing inside the mixer during the mixing process, thus reducing its magnetism, and to avoid damaging the mixer...

[0085] The work will not be affected; secondly, during the flattening process, the magnetic powder will not concentrate upwards or downwards due to magnetic adsorption.

[0086] The magnetism is more uniform.

[0087] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and

[0088] Without departing from the spirit or essential characteristics of this invention patent, the invention patent can be implemented in other specific forms.

[0089] Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the present invention...

[0090] The scope of the patent is defined by the appended claims rather than the foregoing description, and is therefore intended to cover the equivalent elements falling under the claims.

[0091] All variations in the meaning and scope of this invention are included within the scope of this patent, and no reference numerals in the claims should be construed as...

[0092] Limitations apply to the claims involved.

[0093] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment includes only [specific embodiments].

[0094] This is an independent technical solution; the way it is described in the specification is merely for clarity. Those skilled in the art should understand that...

[0095] As a whole, the technical solutions in the various embodiments of this specification can also be appropriately combined to form a system that can be understood by those skilled in the art.

[0096] Other implementation methods are understood.

Claims

1. A manufacturing process for straight-strip injection-molded hook and loop fasteners, characterized in that, Straight-line injection hook and loop fasteners, including terry loops (1) And protective layer (7), one end of the loop (1) is sequentially provided with braided layer (2), adhesive layer (3) and substrate (4). And the hook body (6), the protective layer (7) has a plurality of openings on one side and the plurality of openings correspond to the hook body (6). The other side of the protective layer (7) is provided with a magnetic conductive layer (8) and a wear-resistant layer; Production process steps: S1. Determine the width of the item to be knitted, then cast on stitches according to this width using the long tail cast-on method, placing the yarn on one... Wrap the yarn around a needle once, then insert the needle into the loop and pull the yarn out to form a new stitch. Repeat this process. Continue casting on until the required number of stitches is reached. After casting on, evenly distribute the loops on two or three needles. Then, circular weaving is performed to achieve the processing technology of the woven layer and the loop; S2, Select hot melt adhesive. Preheat the hot melt adhesive and place it in an insulated container to melt it. Apply hot melt adhesive to the surface of the braided layer, and then evenly coat the braided layer with hot melt adhesive around one side of the braided layer. And draw a circle in the middle of the woven layer with hot melt adhesive; S3, the substrate material is quickly bonded to the braided layer using the aforementioned hot melt adhesive, rapidly bonding the two together. Apply a certain amount of pressure to ensure the hot melt adhesive fully contacts and cures; S4, Place a portion of the material into the injection molding machine, and then use the injection molding machine to transfer this material into the mold. The mold moves up and down... After mold closing, the hollow area is designed with hook-shaped grooves and cylindrical grooves. The material is extruded and formed into a hooked cylinder. One end of the body plane is thermally fused to the substrate; S5, another portion of the material is introduced into another mold, where the mold closing position is set with a hook-shaped protrusion. After the material is formed, this part of the material surface is a template with a protective layer of hook-shaped grooves, and the hook-shaped grooves of the template can interact with... The hook-shaped protrusions on the substrate are interlocked; S6, a portion of the synthetic material is mixed with magnetic metal powder and placed in a mixer to synthesize a magnetic material, which is... Magnetic materials are malleable; S7, the magnetic material is fed into the flattening and forming machine to process the magnetic material into a magnetic flexible sheet, through... The hot melt adhesive bonds with the template of the protective layer; S8. Finally, by uniformly adding an adhesive substance to a wear-resistant layer, the adhesive side of the wear-resistant layer is bonded to the magnetic flexible board of the protective layer.

2. The manufacturing process of a straight-strip injection-molded hook and loop fastener according to claim 1, characterized in that, The magnetic During the mixing process, the interior of the mixer is made of non-magnetic materials.

3. The manufacturing process of a straight-strip injection-molded hook and loop fastener according to claim 2, characterized in that, The magnetic During the flattening process of the material, the surfaces of the flattening machine that come into contact with the material are all non-magnetic.

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