CN217117987U

CN217117987U - Loop type net pull belt

Info

Publication number: CN217117987U
Application number: CN202221017835.4U
Authority: CN
Inventors: 王加清
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-05
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a time type net stretching strap, including representing the warp and the plastic film of product length of weft, the at least more than two of product width, warp is arranged in the coplanar parallel, weft is an incessant line body, weft and warp are perpendicular and make a round trip to weave in warp and form time type net, plastic film is fixed in with warp parallel arrangement time type both sides edge that the net is relative returns. The utility model discloses can bear great pulling force, all be difficult for under the uneven circumstances of atress to draw the silk and warp, prolong the life of inflating the product, keep the pleasing to the eye of outward appearance, greatly reduced the cost of product.

Description

Loop type net pull belt

Technical Field

The utility model belongs to the technical field of aerify the product technique and specifically relates to indicate a be applied to and aerify inside type net stretching strap of returning of product.

Background

The inflatable products have the characteristics of light weight, easy collection and portability, are applied to outdoor articles or toys, and increasingly enter the household field along with the continuous progress of the process technology, such as common inflatable beds, inflatable sofas and the like. The inflatable product, if it is to be provided in a predetermined shape, must be realized by means of the structure inside it. For example, the existing inflatable bed has a drawstring type inflatable bed, or is called as a wave type, straight bar type or I-shaped; there are also column type air beds, or cross-cellular, cylindrical, whose name is derived from their internal construction, and if there is no drawstring structure inside, the air bed is likely to become an irregular balloon. In order to keep the inflatable bed as a cuboid, the upper surface and the lower surface of the inflatable bed are required to be tightened by using pull straps or air columns inside the inflatable bed, the bed body can be regular and flat after inflation, and the length and the number of the pull straps arranged inside the inflatable bed are determined according to the structure of a product.

Most of the existing inflatable products use plastic film drawstrings or linear drawstrings to enhance the structural strength, as shown in figure 1, the prior wire drawstring is in a complete sheet shape and is formed by a plurality of wires 1 ' which are arranged in parallel at uniform intervals in a plane, a plurality of plastic films 2 ' are vertically distributed along the length direction of the wires 1 ', thermally synthesizing and molding a plurality of plastic film sheets 2 ' and a plurality of thread bodies 1 ' into a whole by high frequency (also called as "high frequency"), and cutting the plastic film sheets 2 ' in parallel to form a finished product of the thread pulling belt, as shown in FIG. 2, because the thread pulling belt is mainly made of PVC, TPU and other sheet membrane materials through high-frequency thermal synthesis, when the sheet membrane materials are welded with a plurality of thread bodies, molecules between the sheet membrane materials and the thread bodies are not really polarized and then are molded together, therefore, the yarn can be easily taken off or drawn under the condition of unequal stress, because the line bodies perpendicular to the plastic sheets are independent from each other after cutting. The traditional drawstring is made by punching PVC, PE, PU, TPU and other film materials through a mold, so that the traditional drawstring has the following defects: 1. the weight is too heavy, and the wider the stretching strap, the heavier the total weight of the product is, and the product is inconvenient to carry. 2. The film body is easy to extend after being stressed, so that the product is easy to deform after being used for a long time. 3. The cost is high, and the ratio of the drawstring with the same area size to the wire drawstring is at least three times higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a return type net stretching strap can bear great pulling force, and difficult drawing warp, has prolonged the life of aerifing the product, has kept the pleasing to the eye of outward appearance.

In order to achieve the above purpose, the technical solution of the present invention is: the utility model provides a type net stretching strap returns, includes the weft that represents the product width, represents the warp and the plastic film of product length, more than two at least warp parallel arrangement is in the coplanar, weft is an incessant line, weft is perpendicular to warp and makes a round trip to weave and forms the type net returns, plastic film and warp parallel arrangement are fixed in the opposite both sides edge of type net returns.

Furthermore, the longitude lines are symmetrically distributed on two sides of the vertical plane by taking the vertical plane of the plane as a center.

Further, the weft and the warp are thread bodies or threads with the same color or different colors.

Further, the wire body or the thread is made of nylon or twisted yarn.

Further, the weft is a continuous and uninterrupted nylon wire body or twisted yarn.

Furthermore, the warp is a continuous uninterrupted nylon wire body or twisted yarn.

Furthermore, the plastic sheet film is welded or bonded at the two opposite side edges of the loop-shaped net in a high-frequency heat seal or adhesive mode.

Furthermore, the plastic film is of a double-layer structure, and the loop-shaped net is clamped between the double-layer plastic film.

Furthermore, the number of the plastic film is four.

Furthermore, the plastic sheet film is made of PVC or PE or PU or TPU.

Further, the loop-type net pulling belt is cut along the direction parallel to the weft, and a single finished product of the loop-type net pulling belt can be obtained.

After the scheme is adopted, the utility model discloses a gain effect lies in: compared with the prior thread drawing belt, the utility model discloses a weft that is incessant makes a round trip to weave on warp and is back type net to with the type net clamp that returns between double-deck plastic film, make the stretching belt can bear great pulling force, because of the stretching belt belongs to special weaving back type net, so the weft of atress can not take out and takes off, can effectual extension aerify the life of product and keep the pleasing to the eye of outward appearance.

Additionally, the utility model discloses during with aerify the product assembly butt fusion, when having overcome and having made the stretching strap butt fusion with plastic film membrane material, be difficult to the problem of placing because of the mould interval is little and plastic film membrane material is bulky.

The utility model discloses saved one stretching strap punching process, reduced the use of piece membrane raw and other materials by a wide margin, greatly reduced manufacturing cost, and the finished product light in weight who makes easily carries.

Drawings

FIG. 1 is a schematic view of a prior art string pull for an inflatable product;

FIG. 2 is a schematic view of the slit tape of FIG. 1 after being cut to form a single finished product;

FIG. 3 is a schematic structural view of the present invention forming a ribbon-line pull tape before cutting;

FIG. 4 is a schematic illustration of the structure of the strip-line draw tape of FIG. 3 after cutting to form a unitary finished product;

FIG. 5 is a production process diagram of the middle-sized paper-back net of the present invention;

FIG. 6 is a schematic structural view of a middle-back net according to the present invention;

FIG. 7 is a schematic structural view of the plastic film of the present invention;

fig. 8 is an exploded view of an embodiment of the present invention.

Description of the reference symbols: 1. a weft; 2. warp threads; 3. returning to the net; 4. a plastic sheet film; 5. a wire clamping tool; 51. moving the plate A up and down by the warp; 511. a first chute; 512. a first through hole; 52. moving the board B up and down by the warp; 521. a second chute; 522. a second through hole; 53. fixing the warp yarns; 54. and (4) a material rolling wheel.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

A looped mesh draw tape comprises a weft 1 representing the width of a product, at least more than two warps 2 representing the length of the product and a plastic sheet film 4, wherein the warps 2 are continuous and uninterrupted lines, the more than two warps 2 are arranged in parallel in the same plane and are symmetrically distributed on two sides of the vertical plane by taking the vertical plane of the plane as the center, the weft 1 is an uninterrupted nylon line or twisted yarn, the weft 1 is perpendicular to the warps 2 and woven back and forth to form a looped mesh 3, and the plastic sheet film 4 is parallel to the warps 2 and is vertically fixed on the edges of two opposite sides of the looped mesh 3 together with the weft 1.

Specifically, the plastic sheet films 4 are of a double-layer structure and are welded or bonded to the two opposite side edges of the loop-shaped net 3 in a high-frequency heat seal or adhesive mode, and the loop-shaped net 3 is clamped between the double-layer plastic sheet films 4; the plastic sheet film 4 is made of PVC or PE or PU or TPU.

The manufacturing method of the utility model is as follows:

s1, the clip net is made by a full-automatic net-weaving machine (not shown). Providing more than two warps 2 and one weft 1 for a full-automatic netting machine, continuously conveying the warps 2 out of a parallel arrangement in a plane through a yarn clamping tool 5, as shown in fig. 5, enabling the wefts 1 and the warps 2 to be perpendicular to each other, and performing shuttle weaving on the warps 2 back and forth to form a returning net 3, as shown in fig. 6, and fixing the space (not shown in the figure) between the wefts 1 by a conveying belt; the weft 1 and the warp 2 are nylon threads or twisted yarns with the same color or different colors;

s2, arranging hot-melt welding equipment (not shown in the figure) in front of the wire clamping tool 5, and respectively feeding four plastic film sheets 4 with the lengths matched with the lengths of warp threads between an upper die flat plate and a lower die flat plate of high-frequency equipment;

s3, pressing down the upper welding mould to fixedly connect the four plastic sheet films 4 with the returning net 3, wherein the returning net 3 is clamped between the plastic sheet films 4, and the upper and lower plastic sheet films 4 are parallel to the warp 2 and are welded on the two opposite side edges of the returning net 3, as shown in figure 3;

s4, winding the clip 3 fixed with the plastic film 4 into a branch shape by the material winding wheel 54, and then manufacturing a clip pull belt;

and S5, finally, cutting the inflatable products according to the required lengths by an automatic cutting machine, namely cutting the inflatable products along the direction of the loop-shaped net 3 parallel to the weft 1 to obtain finished products, namely loop-shaped net pull tapes, which are shown in detail in figure 4.

Specifically, the loop-shaped net 3 is not limited to be integrated with the plastic sheet film 4 through hot melting by high-frequency equipment, and can also be adhered to the two opposite side edges of the loop-shaped net 3 by adopting an adhesive manner, so that the hot melting welding equipment in the step S2 can be replaced by an adhesive machine, and the fixing effect of the loop-shaped net 3 and the plastic sheet film 4 can also be realized.

In S1, as shown in fig. 5, the yarn clamping tool 5 includes a warp vertical moving plate a51, a warp vertical moving plate B52, a plurality of warp fixing posts 53 and a material rolling wheel 54, the warp vertical moving plate a51 and the warp vertical moving plate B52 are respectively provided with a plurality of first sliding grooves 511 and a plurality of second sliding grooves 521 for allowing the warp 2 to slide vertically, the warp vertical moving plate a51 is provided with a first through hole 512 and a second through hole 522 respectively at a bottom end side of the first sliding groove 511 and a top end side of the sliding groove of the warp vertical moving plate B52, the first through hole 512 and the second through hole 522 are respectively disposed at two sides of the first sliding groove 511 and the second sliding groove 521, the first through hole 512 and the second sliding groove 521 are disposed opposite to each other, the warp 2 provided by the full-automatic weaving machine is wound around the warp fixing posts 53, one end of the warp 2 sequentially passes through the first sliding groove 511 and the warp vertical moving plate a51 and the warp vertical moving plate B52 The second through hole 522 at the top end is connected to the coiling wheel 54, the other end of the warp 2 passes through the first through hole 512 at the bottom end of the warp up-and-down moving plate A51 and the second sliding groove 521 on the warp up-and-down moving plate B52 at a time and then is connected to the coiling wheel 54, and the weft 1 can better shuttle back and forth in the warp 2 by moving the warp up-and-down moving plate A, B, so that the looped-type net 3 can be woven quickly. In this embodiment, the warp fixing columns correspond to the number of warps.

In the method, when the return net 3 and the plastic sheet film 4 are welded and fixed, the return net 3 is fixed by oppositely clamping the upper plastic sheet film 4 and the lower plastic sheet film 4, as shown in fig. 8, namely the plastic sheet film 4 is of a double-layer structure, the welding surface and the length are more flexible, the strength is good, the traction function of the internal structure of the inflatable product is met, and the weight is greatly reduced compared with the existing sheet film drawstring.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present application, and all equivalent changes made according to the design key of the present application fall within the protection scope of the present application.

Claims

1. The shape of returning net stretching strap, its characterized in that: the warp yarns are arranged in parallel in the same plane, the weft yarns are uninterrupted line bodies, the weft yarns are perpendicular to the warp yarns and shuttle back and forth with the warp yarns to form a loop type net, and the plastic sheet film and the warp yarns are arranged in parallel and fixed on the edges of two opposite sides of the loop type net.

2. The loop type net draw tape of claim 1, wherein: the longitude lines are symmetrically distributed on two sides of the vertical plane by taking the vertical plane of the plane as a center.

3. The loop type net draw tape of claim 1, wherein: the weft and the warp are thread bodies or threads with the same or different colors.

4. The loop tape of claim 3, wherein: the wire body or the thread is made of nylon or twisted yarn.

5. The loop tape of claim 4, wherein: the warp and the weft are continuous uninterrupted nylon thread or twisted yarn.

6. The loop type net draw tape of claim 1, wherein: the plastic sheet film is welded or bonded at the two opposite side edges of the returning net in a high-frequency heat seal or adhesive mode.

7. The loop type net draw tape of claim 6, wherein: the clip net pulling belt is cut along the direction parallel to the weft, and then a single finished product is obtained.

8. The loop type net draw tape of claim 6, wherein: the plastic film is of a double-layer structure, and the loop-shaped net is clamped between the double-layer plastic film.

9. The loop type net draw tape of claim 1, wherein: the number of the plastic film is four.

10. The loop type net draw tape of claim 1, wherein: the plastic sheet film is made of PVC or PE or PU or TPU.