Load crease device for easily foldable umbrella cloth

Abstract

The present invention provides a preparation process for easily foldable umbrella fabric, belonging to the technical field of fabrics. It solves the problem of poor stability existing in the prior art. The preparation process for the easily foldable umbrella fabric includes the following steps: A. Preparation: Select 30D / 24F polyester drawn textured yarn as the warp yarn, and select 30D polyester monofilament or 30D / 48 polyester drawn textured yarn as the weft yarn; B. Weaving: Carry out plain weaving on a loom according to a warp density of 860 threads / 10 cm and a weft density of 600 threads / 10 cm to obtain a raw umbrella fabric; C. Pre-shrinking: Carry out pre-shrinking treatment on the raw umbrella fabric through a pre-shrinking machine to obtain a semi-finished umbrella fabric after pre-shrinking, and then make the semi-finished umbrella fabric after pre-shrinking enter an overflow dyeing machine and sequentially carry out refining and degreasing, water washing and pre-shrinking and swelling; D. Heat setting; E. Loading creases. The preparation process for the easily foldable umbrella fabric has high stability.

Description

Technical Field

[0001] The invention belongs to the technical field of fabrics and relates to a preparation process of an easily foldable umbrella cloth. Background Art

[0002] The fabric used on umbrellas needs to be folded when the umbrella is stored.

[0003] Existing umbrella fabrics are either too hard or too soft. When the umbrella fabric is too hard, the fabric is not easy to fold, and the fabric of the umbrella after being folded has bulging parts, resulting in a non-compact structure.

[0004] When the umbrella fabric is too soft, the umbrella fabric cannot be folded at the set folding position, which also causes the problem of not being compact when stored.

[0005] In other words, if the umbrella fabric is too hard or too soft, it will be unstable when folded and will be difficult to fold.

[0006] Chinese patent publication number CN111329199A provides a novel umbrella fabric, relating to the textile field, specifically a novel folding umbrella fabric. The fabric comprises a base layer, a first adhesive layer, fragrance-storing capsules, a pattern layer, a second adhesive layer, and a protective layer. The base layer and the pattern layer are connected by the first adhesive layer, a number of fragrance-storing capsules are evenly distributed within the base layer, and the pattern layer and the protective layer are connected by the second adhesive layer.

[0007] The aforementioned patent effectively combines waterproofing and UV protection, quickly drying water from the fabric while waterproofing, and providing a refreshing minty scent that provides a cooling effect for the user, reducing user costs and improving the user experience. However, it still does not address the issue of making the umbrella fabric easier to fold and store flatly. Summary of the Invention

[0008] The first object of the present invention is to address the above-mentioned problems existing in the prior art and to provide a process for preparing an easily foldable umbrella cloth that can be easily and smoothly folded when the umbrella is stored.

[0009] The second object of the present invention is to provide a load crease device used in the above preparation process.

[0010] The first object of the present invention can be achieved by the following technical solutions:

[0011] A preparation process for an easily foldable umbrella cloth, comprising the following steps:

[0012] A. Preparation: Use 30D / 24F polyester stretch interwoven yarn as the warp yarn, and 30D polyester monofilament or 30D / 48 polyester stretch interwoven yarn as the weft yarn;

[0013] B. Weaving: According to the warp density of 860 threads / 10 cm and the weft density of 600 threads / 10 cm, a plain weave is performed using a loom to obtain a raw umbrella cloth blank.

[0014] C. Pre-shrinking: The raw umbrella cloth blank is pre-shrunk through a pre-shrinking machine to obtain a semi-finished umbrella cloth after pre-shrinking. Then, the semi-finished umbrella cloth after pre-shrinking is fed into an overflow dyeing machine and undergoes refining and degreasing, water washing, and pre-shrinking and puffing in sequence.

[0015] D. Heat setting: The semi-finished umbrella cloth after pre-shrinking is impregnated with a setting aid and heat-set at a temperature of 140 - 150 °C to obtain a finished umbrella cloth.

[0016] E. Loading creases: The umbrella cloth is fed to a loading crease device, and corresponding creases are folded on the umbrella cloth through the loading crease device.

[0017] In the above preparation process of the easily foldable umbrella cloth, the reed count of the easily foldable umbrella cloth is 230 / 10 cm, the number of warp threads inserted is 3, and the number of harness frames is 6.

[0018] Since the warp yarn is 30D / 24F polyester drawn texturized yarn and the weft yarn is 30D polyester monofilament or 30D / 48 polyester drawn texturized yarn. The hardness of the raw umbrella cloth material obtained after plain weaving with the above warp and weft yarns is moderate.

[0019] After pre-shrinking treatment, the overall physical properties of the raw umbrella cloth can be improved, and its physical properties can be maintained after heat setting. After the loading crease treatment, the umbrella cloth can be stably and neatly stored along its creases.

[0020] The second object of the present invention can be achieved by the following technical solutions:

[0021] A loading crease device for an easily foldable umbrella cloth, characterized in that the device includes a lower die body and an upper die body. The lower die body includes a chassis in the shape of a disc, and a tubular connecting pipe is provided at the center of the chassis. A plurality of crease pieces are circumferentially and evenly distributed on the side of the connecting pipe. The connecting pipe and the crease pieces form a crease portion for folding the umbrella cloth above the chassis. The interior of the upper die body is a cavity with an open lower end, and the inner cavity of the upper die body is a forming cavity matching the crease portion. An interface pipe for connecting to a steam source is further provided at the upper part of the upper die body, and the interface pipe is communicated with the forming cavity.

[0022] The loading crease device of the present easily foldable umbrella cloth creatively performs crease treatment on the umbrella cloth through the upper die body and the lower die body.

[0023] Specifically, the umbrella part to be creased is placed on the lower die body.

[0024] To ensure the stability of the crease, the umbrella part can be roughly fitted onto the crease piece during placement. After the upper die body and the lower die body are buckled, the umbrella part is pressed and creased into a trace matching the crease.

[0025] During the creasing process, steam is introduced into the interface pipe. Under the action of the steam, the umbrella part located between the upper die body and the lower die body can be more easily formed into a crease.

[0026] Of course, after the creasing process is completed, the upper die body is removed. At this time, the creased umbrella part can be conveniently taken out from the lower die body.

[0027] In the above-mentioned load crease device for easily foldable umbrella cloth, the middle part of the upper die body has a protruding bearing plate, and further includes a plurality of disc-shaped counterweight discs. The center of the counterweight disc has a through sleeve hole and the counterweight disc is sleeved on the interface pipe, and the lower end of the counterweight disc abuts against the bearing plate.

[0028] The interface pipe has two functions:

[0029] One is to introduce steam between the upper die body and the lower die body;

[0030] The other is to position the counterweight disc.

[0031] Of course, the lower end of the counterweight disc abuts against the bearing plate, and finally the counterweight disc can be stably connected to the upper die body.

[0032] The number of counterweight discs is selected according to the actual situation, which can improve the applicability of the device.

[0033] In the above-mentioned load crease device for easily foldable umbrella cloth, the inner side of the crease piece is fixedly connected to the connecting pipe, the lower end of the crease piece is fixedly connected to the chassis, and the outer side of the crease piece smoothly extends from the outer side of the connecting pipe to the edge of the chassis.

[0034] Such a structure can make the crease of the umbrella part arc-shaped, ensure that the umbrella cloth can match the arc-shaped support structure of the umbrella, and the umbrella part is arc-shaped when the umbrella is opened.

[0035] In the above-mentioned load crease device for easily foldable umbrella cloth, the connecting pipe has a through exhaust notch.

[0036] The setting of the exhaust notch can enable the steam entering from the interface pipe to smoothly enter between the upper die body and the lower die body, ensuring that the umbrella part can be more stably formed into a crease under the action of the steam.

[0037] In the above-mentioned load crease device for easily foldable umbrella cloth, the upper end of the connecting pipe extends out of the upper part of the crease piece.

[0038] There is a central hole in the umbrella cloth. After the umbrella cloth is sleeved on the connecting pipe, it can form a preliminary positioning for the umbrella part.

[0039] Of course, during the subsequent umbrella manufacturing process, the above-mentioned openings can be connected to the umbrella pole of the umbrella.

[0040] In the above-mentioned load crease device for the easily foldable umbrella cloth, after the upper die body is buckled on the lower die body, the crease part is embedded in the forming cavity and the lower end of the upper die body abuts against the chassis of the lower die body.

[0041] In the above-mentioned load crease device for the easily foldable umbrella cloth, several protruding bumps are provided at the lower port of the upper die body. After the upper die body and the lower die body are buckled, the above-mentioned bumps abut against the chassis of the lower die body.

[0042] In the above-mentioned load crease device for the easily foldable umbrella cloth, the bumps are hemispherical and several bumps are circumferentially and evenly distributed at the lower end of the upper die body.

[0043] The arrangement of the bumps can make a gap between the upper die body and the chassis, and such a structure can enable steam to flow smoothly between the upper die body and the lower die body.

[0044] Compared with the prior art, since the warp and weft yarns with corresponding material properties are selected in the manufacturing process of the present easily foldable umbrella cloth, therefore, the material of the umbrella part after plain weaving will not be too soft or too hard. When used as the umbrella cloth after subsequent load creases, the umbrella part will be stably and flatly stored along its crease part during the umbrella storage process, and its stability is relatively high.

[0045] At the same time, the present load crease device can process multiple creases on the umbrella cloth at one time, with high crease efficiency and high practical value. Brief Description of the Drawings

[0046] Figure 1 is a cross-sectional structural schematic diagram of the load crease device for the present easily foldable umbrella cloth.

[0047] Figure 2 is a top view structural schematic diagram of the lower die body in the load crease device for the present easily foldable umbrella cloth.

[0048] Figure 3 is a front view structural schematic diagram of the lower die body in the load crease device for the present easily foldable umbrella cloth.

[0049] Figure 4 is a structural schematic diagram of the weaving of the present umbrella part.

[0050] In the figure, 1. upper die body; 1a. interface pipe; 1b. bearing plate; 2. lower die body; 2a. chassis; 2b. connecting pipe; 2b1. exhaust notch; 2c. crease piece; 3. counterweight plate. Detailed Embodiments

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0052] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there can also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0054] The preparation process of the easily foldable umbrella cloth includes the following steps:

[0055] A. Preparation: Select 30D / 24F polyester drawn textured yarn as the warp yarn, and select 30D polyester monofilament or 30D / 48 polyester drawn textured yarn as the weft yarn;

[0056] B. Weaving: Perform plain weaving on a loom according to a warp density of 860 ends / 10 cm and a weft density of 600 picks / 10 cm to obtain the umbrella cloth blank;

[0057] C. Pre-shrinking: Perform pre-shrinking treatment on the umbrella cloth blank through a pre-shrinking machine to obtain the semi-finished umbrella cloth after pre-shrinking, and then feed the semi-finished umbrella cloth after pre-shrinking into an overflow dyeing machine and perform degreasing, water washing and pre-shrinking expansion in sequence;

[0058] D. Heat setting: Immerse the semi-finished umbrella cloth after pre-shrinking in a setting assistant and perform heat setting treatment at a temperature of 140 - 150 °C to obtain the finished umbrella cloth;

[0059] E. Loading creases: Feed the umbrella cloth to the loading crease device, and fold the corresponding creases on the umbrella cloth through the loading crease device.

[0060] Such as Figure 4As shown, the reed count of the easily foldable umbrella fabric is 230 / 10 cm, the insertion number is 3, and the number of harness frames is 6.

[0061] As Figure 1 and Figure 2 and Figure 3 As shown, the load crease device of the easily foldable umbrella fabric includes a lower die body 2 and an upper die body 1. The lower die body 2 includes a chassis 2a in the shape of a disc. A tubular connecting pipe 2b is provided at the center of the chassis 2a. A plurality of crease pieces 2c are circumferentially and evenly distributed on the side of the connecting pipe 2b. The connecting pipe 2b and the crease pieces 2c form a crease part for folding the umbrella fabric above the chassis 2a. The inside of the upper die body 1 is a cavity with an opening at the lower end. The inner cavity of the upper die body 1 is a forming cavity matching the crease part. An interface pipe 1a for connecting to a steam source is further provided at the upper part of the upper die body 1, and the interface pipe 1a communicates with the forming cavity.

[0062] A protruding bearing plate 1b is provided in the middle of the upper die body 1. The load crease device further includes a plurality of disc-shaped counterweight discs 3. The center of the counterweight disc 3 has a through sleeve hole and the counterweight disc 3 is sleeved on the interface pipe 1a. The lower end of the counterweight disc 3 abuts against the bearing plate 1b.

[0063] The inner side of the crease piece 2c is fixedly connected to the connecting pipe 2b, the lower end of the crease piece 2c is fixedly connected to the chassis 2a, and the outer side of the crease piece 2c smoothly extends from the outer side of the connecting pipe 2b to the edge of the chassis 2a. That is to say, the outer edge of the crease piece 2c is arc-shaped.

[0064] A through exhaust notch 2b1 is provided on the connecting pipe 2b.

[0065] The upper end of the connecting pipe 2b extends out of the upper part of the crease piece 2c.

[0066] After the upper die body 1 is buckled on the lower die body 2, the crease part is embedded in the forming cavity and the lower end of the upper die body 1 abuts against the chassis 2a of the lower die body 2.

[0067] In this embodiment, a plurality of protruding convex heads are provided at the lower port of the upper die body 1. After the upper die body 1 is buckled on the lower die body 2, the convex heads abut against the chassis of the lower die body. Such a structure can make there be a gap for steam discharge between the upper die body 1 and the chassis 2a after the upper die body 1 is buckled on the lower die body 2.

[0068] The convex heads are hemispherical and a plurality of convex heads are circumferentially and evenly distributed at the lower end of the upper die body 1.

[0069] Since the warp yarn is 30D / 24F polyester textured network yarn and the weft yarn is 30D polyester monofilament or 30D / 48 polyester textured network yarn. The hardness of the umbrella fabric blank material obtained by plain weaving with the above warp and weft yarns is moderate.

[0070] After the umbrella cloth blank is pre-shrunk, its overall physical properties can be improved, and after heat setting, its physical properties can be maintained. After load creasing treatment, the umbrella cloth can be stably and neatly stored along its creases.

[0071] The load creasing device of this easily foldable umbrella cloth creatively performs creasing treatment on the umbrella cloth through an upper die body and a lower die body.

[0072] Specifically, the umbrella part that needs to be creased is placed on the lower die body.

[0073] To ensure crease stability, when placing, the umbrella part can be roughly fitted on the crease piece first. After the upper die body and the lower die body are buckled, the umbrella part is pressed into a crease matching the crease.

[0074] During the creasing process, steam is introduced into the interface pipe. Under the action of the steam, it is easier for the umbrella part located between the upper die body and the lower die body to be formed into a crease.

[0075] Of course, after the creasing treatment is completed, the upper die body is removed. At this time, the umbrella part with the formed crease can be conveniently taken out from the lower die body.

[0076] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0077] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as it is within the scope of the essential spirit of the present invention, appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present invention.

Claims

1. A load crease device for an easily foldable umbrella cloth, characterized in that, The device includes a lower die body and an upper die body. The lower die body includes a chassis in the shape of a disc, and a tubular connecting pipe is provided at the center of the chassis. A number of crease pieces are circumferentially and evenly distributed on the side of the connecting pipe. The connecting pipe and the crease pieces form a crease part for folding the umbrella cloth above the chassis. The interior of the upper die body is a cavity with an opening at the lower end, and the inner cavity of the upper die body is a forming cavity matching the crease part. An interface pipe for connecting to a steam source is further provided at the upper part of the upper die body, and the interface pipe communicates with the forming cavity.

2. The load crease device of the easily foldable umbrella cloth according to claim 1, characterized in that, A protruding bearing plate is provided in the middle of the upper die body, and it further includes a number of disc-shaped counterweight discs. The center of the counterweight disc has a through sleeve hole and the counterweight disc is sleeved on the interface pipe, and the lower end of the counterweight disc abuts against the bearing plate.

3. The load crease device of the easily foldable umbrella cloth according to claim 2, characterized in that, The inner side of the crease piece is fixedly connected to the connecting pipe, the lower end of the crease piece is fixedly connected to the chassis, and the outer side of the crease piece smoothly extends from the outer side of the connecting pipe to the edge of the chassis.

4. The load crease device for easily foldable umbrella cloth according to claim 3, wherein, The connecting pipe has a through exhaust notch on the side.

5. The load crease device for easily foldable umbrella cloth according to claim 4, characterized in that, The upper end of the connecting pipe extends out of the upper part of the crease piece.

6. The load crease device for easily foldable umbrella cloth according to claim 5, characterized in that, After the upper die body is buckled on the lower die body, the crease part is embedded in the forming cavity and the lower end of the upper die body abuts against the chassis of the lower die body.

7. The load crease device of the easily foldable umbrella cloth according to claim 6, characterized in that, A number of protruding convex heads are provided at the lower port of the upper die body. After the upper die body and the lower die body are buckled, the convex heads abut against the chassis of the lower die body.

8. The load crease device for easily foldable umbrella cloth according to claim 7, characterized in that, The convex heads are hemispherical and a number of convex heads are circumferentially and evenly distributed at the lower end of the upper die body.

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