Production process of fully-wrapped plant fiber elastic module and obtained elastic module

Abstract

The invention discloses a full-wrapping plant fiber elastic module production process and an obtained elastic module, and belongs to the field of plant fiber furniture, plant fiber filaments are adopted for manufacturing plant fiber elastic sheets, the plant fiber elastic sheets are cut according to the design size to obtain wrapping sheets, filling sheets and bottom surface sheets, the wrapping sheets are spread on a mold, and the bottom surface sheets are placed on the mold; the size of the periphery of the wrapping sheet is larger than the depth of the mold, the filling sheet is arranged in the wrapping sheet, the mold is started to compress and mold the filling sheet, then the part, left outside the periphery of the mold, of the wrapping sheet is folded towards the interior of the mold and covered with the bottom sheet, the mold is started again to compress and shape the wrapping sheet and the bottom sheet, and the elastic module is obtained. The mattress has the advantages of being good in breathability and elasticity, the elastic module is completely wrapped by the wrapping sheet, the surface is smooth, the comfort is better, the size of the filling sheet in the elastic module is adjusted according to the shape of the elastic module, and the density of plant fibers in the elastic module is uniform.

Description

Technical Field

[0001] The invention relates to the technical field of plant fiber furniture, in particular to a production process of a fully wrapped plant fiber elastic module and the obtained elastic module. Background Art

[0002] In the prior art, when making mattresses from mountain palm, it is necessary to steam, roll, open, separate fibers, throw, dry, screen, make ropes, and bundle palm ropes. After the palm ropes are untied, curled plant fiber filaments are obtained, and then plant fiber sheets are prepared, sprayed with glue, and the plant fiber sheets are stacked, hot pressed, and vulcanized to obtain plant fiber mattresses. However, there are few related technologies for pillows made of plant fibers. Chinese patent CN202619121U discloses a plant fiber health pillow, including: a plant fiber pillow core, which is composed of plant fibers arranged in a disordered three-dimensional network structure; a pillowcase, which is detachably wrapped on the outer surface of the plant fiber pillow core. The plant fiber health pillow is elastic and breathable, can effectively evacuate excess heat from the head, and maintain a dry feeling. The production process of this pillow will leave a rough edge. Since the plant fiber filaments are relatively hard, even if the pillowcase is put on, it will affect the comfort. In addition, when making an ergonomic pillow, the plant fibers in the pillow are unevenly distributed, affecting the support effect. Summary of the invention

[0003] The purpose of the present invention is to provide a production process of a fully wrapped plant fiber elastic module and the obtained elastic module. The elastic module has a smooth surface, uniform distribution of plant fibers inside, and better force-bearing effect.

[0004] The technical solution of the present invention is: a production process for a fully wrapped plant fiber elastic module, which adopts plant fiber filaments to make plant fiber elastic sheets, cuts the plant fiber elastic sheets according to the designed size to obtain wrapping sheets, filling sheets and bottom sheets, spreads the wrapping sheets on a mold, the four sides of the wrapping sheets are larger than the depth of the mold, puts the filling sheets into the wrapping sheets, starts the mold to compress the filling sheets in the wrapping sheets into shape, fills the inside of the wrapping sheets, then folds the part of the wrapping sheets outside the four sides of the mold into the mold, covers the bottom sheet, starts the mold again to compress the wrapping sheets and the bottom sheet into shape, and obtains an elastic module.

[0005] The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides.

[0006] Hot air is introduced into the mold.

[0007] The hot air is 80-150°C.

[0008] When the elastic module is designed to be in a curved shape, when the filling sheet is loaded, the filling sheet in the inwardly concave part of the elastic module is reduced, and the filling sheet in the outwardly convex part of the elastic module is increased to maintain a uniform density of plant fibers in the elastic module.

[0009] The specific steps are as follows: S1, making plant fiber yarn into ropes, untying them to obtain curled plant fiber yarns, making them into sheets and spraying glue to obtain plant fiber elastic sheets, cutting the plant fiber elastic sheets according to designed sizes to obtain wrapping sheets, filling sheets and bottom sheets; S2, spreading the wrapping sheet on the lower mold of the mold, with the four sides of the wrapping sheet extending outside the lower mold, pressing the upper mold of the mold down to the lower mold to initially press the wrapping sheet into shape, and then retracting the upper mold to load the filling sheet into the wrapping sheet; S3. Fold the part of the wrapping sheet remaining outside the lower mold into the lower mold, and cut off the four corners of the wrapping sheet. Let hot air into the lower mold, press the upper mold down to the lower mold again, shape the wrapping sheet and the filling sheet inside, then retract the upper mold, cover the filling sheet and the wrapping sheet with the bottom sheet, wrap the filling sheet in the wrapping sheet and the bottom sheet, let hot air into the lower mold, press the upper mold down again to press the wrapping sheet and the bottom sheet together, and shape them again to obtain the elastic module.

[0010] In S2 and S3, when the elastic module is designed to be in a curved shape, the size and position of the filling sheet are adjusted, the filling sheet in the inwardly recessed part of the elastic module is reduced, and the filling sheet in the outwardly protruding part of the elastic module is increased, so that the density of the plant fiber in the elastic module is uniform; two upper molds are used at the same time, one is a curved mold consistent with the internal curved shape of the lower mold, and the other is a flat mold; the curved mold is used for the initial pressing and forming of the wrapping sheet, and the flat mold is used for the primary and secondary shaping.

[0011] The compression molding time is 2-60 minutes.

[0012] The elastic module obtained by the production process of the fully wrapped plant fiber elastic module is composed of a wrapping sheet, a bottom sheet and an internal filling sheet. The wrapping sheet wraps the top and four sides of the elastic module, and the extended part of the wrapping sheet is bonded to the bottom sheet at the bottom.

[0013] The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides.

[0014] Beneficial effects of the present invention: The elastic module of the present invention not only has the advantages of air permeability and good elasticity, but also the wrapping sheet completely wraps the elastic module, with a smooth surface and better comfort. The size of the filling sheet inside the elastic module is adjusted according to the shape of the elastic module, so that the density of the plant fibers in the elastic module is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A side view of a certain elastic module product of the present invention; Figure 2 A schematic diagram of the wrapping sheet of the present invention being spread on a mold; Figure 3 A schematic diagram of the folding process of the wrapping sheet of the present invention; Figure 4 This is a schematic diagram of the present invention being compressed and shaped after being covered with a bottom sheet; Figure 5 Schematic diagram of adjusting the size and position of the filling sheet according to the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the embodiments, but they are not intended to limit the present invention.

[0017] Embodiment 1. A production process for a fully wrapped plant fiber elastic module, comprising: making a plant fiber elastic sheet from plant fiber filaments, cutting the plant fiber elastic sheet according to a designed size to obtain a wrapping sheet, a filling sheet and a bottom sheet, spreading the wrapping sheet on a mold, wherein the dimensions of the wrapping sheet are larger than the depth of the mold, loading the filling sheet into the wrapping sheet, starting the mold to compress and shape the filling sheet in the wrapping sheet, filling the inside of the wrapping sheet, and then folding the portion of the wrapping sheet outside the mold into the mold, covering it with a bottom sheet, and starting the mold again to compress and shape the wrapping sheet and the bottom sheet to obtain an elastic module.

[0018] The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides.

[0019] Hot air is introduced into the mold.

[0020] The hot air is 80-150°C.

[0021] like Figure 1 As shown, when the elastic module is designed to be in a curved shape, when the filling sheet is loaded, the filling sheet in the inwardly concave portion of the elastic module is reduced, and the filling sheet in the outwardly convex portion of the elastic module is increased to maintain a uniform density of plant fibers in the elastic module.

[0022] The specific steps are as follows: S1, making plant fiber yarn into ropes, untying them to obtain curled plant fiber yarns, making them into sheets and spraying glue to obtain plant fiber elastic sheets, cutting the plant fiber elastic sheets according to designed sizes to obtain wrapping sheets, filling sheets and bottom sheets; S2, spreading the wrapping sheet on the lower mold of the mold, with the four sides of the wrapping sheet extending outside the lower mold, pressing the upper mold of the mold down to the lower mold to initially press the wrapping sheet into shape, and then retracting the upper mold to load the filling sheet into the wrapping sheet; S3, fold the part of the wrapping sheet left outside the lower mold into the lower mold, cut off the four corners of the wrapping sheet, let hot air into the lower mold, press the upper mold down to the lower mold again, shape the wrapping sheet and the filling sheet inside, then retract the upper mold, cover the filling sheet and the wrapping sheet with the bottom sheet, wrap the filling sheet in the wrapping sheet and the bottom sheet, let hot air into the lower mold, press the upper mold down again to press the wrapping sheet and the bottom sheet together, and shape them again to obtain an elastic module, such as Figure 3 and 4 shown.

[0023] In S2 and S3, when the elastic module is designed to be in a curved shape, the size and position of the filling sheet are adjusted, the filling sheet in the inwardly recessed part of the elastic module is reduced, and the filling sheet in the outwardly protruding part of the elastic module is increased, so that the density of the plant fiber in the elastic module is uniform; two upper molds are used at the same time, one is a curved mold consistent with the internal curved shape of the lower mold, and the other is a flat mold; the curved mold is used for the initial pressing and forming of the wrapping sheet, and the flat mold is used for the primary and secondary shaping.

[0024] The compression molding time is 2-60 minutes.

[0025] The elastic module obtained by the production process of the fully wrapped plant fiber elastic module is composed of a wrapping sheet, a bottom sheet and an internal filling sheet. The wrapping sheet wraps the top and four sides of the elastic module, and the extended part of the wrapping sheet is bonded to the bottom sheet at the bottom.

[0026] The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides.

[0027] Example 2. A production process for a fully wrapped plant fiber elastic module, S1, making plant fiber yarn into ropes, untying them to obtain curled plant fiber yarns, making them into sheets and spraying glue to obtain plant fiber elastic sheets, cutting the plant fiber elastic sheets according to designed sizes to obtain wrapping sheets, filling sheets and bottom sheets; S2, spread the wrapping sheet on the lower mold of the mold, such as Figure 2 As shown, the wrapping sheet is extended around the outside of the lower mold, the upper mold of the mold is pressed down to the lower mold to initially press the wrapping sheet into shape, and then the upper mold is retracted to load the filling sheet into the wrapping sheet; S3, fold the part of the wrapping sheet left outside the lower mold into the lower mold, cut off the four corners of the wrapping sheet, press the upper mold down to the lower mold again, let hot air into the lower mold, shape the wrapping sheet and the filling sheet inside, then retract the upper mold, cover the filling sheet and the wrapping sheet with the bottom sheet, wrap the filling sheet in the wrapping sheet and the bottom sheet, press the upper mold down again to press the wrapping sheet and the bottom sheet together, let hot air into the lower mold, and shape the elastic module for the second time. It can be used for the production of ordinary rectangular pillows.

[0028] The time for each compression molding is 5-45 minutes.

[0029] The elastic module obtained by this process is composed of a wrapping sheet, a bottom sheet and an internal filling sheet. The wrapping sheet wraps the top and surrounding of the elastic module, and the extended part of the wrapping sheet is bonded to the bottom sheet at the bottom.

[0030] The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides, and each side is preferably 3-5 cm beyond.

[0031] Example 3. A production process for a fully wrapped plant fiber elastic module, S1, making plant fiber yarn into ropes, untying them to obtain curled plant fiber yarns, making them into sheets and spraying glue to obtain plant fiber elastic sheets, cutting the plant fiber elastic sheets according to designed sizes to obtain wrapping sheets, filling sheets and bottom sheets; S2, spread the wrapping sheet on the lower mold of the mold, such as Figure 2 As shown, the wrapping sheet extends around the outside of the lower mold, the upper mold of the mold is pressed down to the lower mold to initially press the wrapping sheet into shape, and then the upper mold is retracted to load the filling sheet into the wrapping sheet, and the upper mold of the mold is started to compress the filling sheet into shape; S3. Fold the part of the wrapping sheet remaining outside the lower mold into the lower mold, and cut off the four corners of the wrapping sheet. Press the upper mold down to the lower mold again, let hot air into the lower mold, shape the wrapping sheet and the filling sheet inside, then retract the upper mold, cover the filling sheet and the wrapping sheet with the bottom sheet, wrap the filling sheet in the wrapping sheet and the bottom sheet, let hot air into the lower mold, and press the upper mold down again to press the wrapping sheet and the bottom sheet together, and shape them again to obtain the elastic module.

[0032] The time for each compression molding is 20-30 minutes, and the time is adjusted according to the size of the elastic module and the thickness of the filling sheet.

Claims

1. A production process of a fully wrapped plant fiber elastic module, characterized in that: Plant fiber elastic sheets are made of plant fiber filaments, and the plant fiber elastic sheets are cut according to the designed size to obtain wrapping sheets, filling sheets and bottom sheets. The wrapping sheets are spread on a mold, and the dimensions of the wrapping sheets on all sides are larger than the depth of the mold. The filling sheets are loaded into the wrapping sheets, and the mold is started to compress the filling sheets in the wrapping sheets into shape, and the inside of the wrapping sheets is filled. Then, the part of the wrapping sheets left outside the mold is folded into the mold, and the bottom sheet is covered. The mold is started again to compress the wrapping sheets and the bottom sheet into shape, and an elastic module is obtained.

2. The production process of the fully wrapped plant fiber elastic module according to claim 1, characterized in that: The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides.

3. The production process of the fully wrapped plant fiber elastic module according to claim 1 is characterized in that: Hot air is introduced into the mold.

4. The production process of the fully wrapped plant fiber elastic module according to claim 3 is characterized in that: The hot air is 80-150°C.

5. The production process of the fully wrapped plant fiber elastic module according to claim 1 is characterized in that: When the elastic module is designed to be in a curved shape, when the filling sheet is loaded, the filling sheet in the inwardly concave part of the elastic module is reduced, and the filling sheet in the outwardly convex part of the elastic module is increased to maintain a uniform density of plant fibers in the elastic module.

6. The production process of the fully wrapped plant fiber elastic module according to claim 1, characterized in that: The specific steps are as follows: S1, making plant fiber yarn into ropes, untying them to obtain curled plant fiber yarns, making them into sheets and spraying glue to obtain plant fiber elastic sheets, cutting the plant fiber elastic sheets according to designed sizes to obtain wrapping sheets, filling sheets and bottom sheets; S2, spreading the wrapping sheet on the lower mold of the mold, with the four sides of the wrapping sheet extending outside the lower mold, pressing the upper mold of the mold down to the lower mold to initially press the wrapping sheet into shape, and then retracting the upper mold to load the filling sheet into the wrapping sheet; S3. Fold the part of the wrapping sheet remaining outside the lower mold into the lower mold, and cut off the four corners of the wrapping sheet. Let hot air into the lower mold, press the upper mold down to the lower mold again, shape the wrapping sheet and the filling sheet inside, then retract the upper mold, cover the filling sheet and the wrapping sheet with the bottom sheet, wrap the filling sheet in the wrapping sheet and the bottom sheet, let hot air into the lower mold, press the upper mold down again to press the wrapping sheet and the bottom sheet together, and shape them again to obtain the elastic module.

7. The production process of the fully wrapped plant fiber elastic module according to claim 6, characterized in that: In S2 and S3, when the elastic module is designed to be in a curved shape, the size and position of the filling sheet are adjusted, the filling sheet in the inwardly recessed part of the elastic module is reduced, and the filling sheet in the outwardly protruding part of the elastic module is increased, so that the density of the plant fiber in the elastic module is uniform; two upper molds are used at the same time, one is a curved mold consistent with the internal curved shape of the lower mold, and the other is a flat mold; the curved mold is used for the initial pressing and forming of the wrapping sheet, and the flat mold is used for the primary and secondary shaping.

8. The production process of the fully wrapped plant fiber elastic module according to claim 1, characterized in that: The compression molding time is 2-60 minutes.

9. An elastic module obtained by the production process of a fully wrapped plant fiber elastic module according to any one of claims 1 to 8, characterized in that: It consists of a wrapping sheet, a bottom sheet and an inner filling sheet. The wrapping sheet wraps the top and surrounding of the elastic module, and the extended part of the wrapping sheet is bonded to the bottom sheet at the bottom.

10. The elastic module according to claim 9, characterized in that: The length and width of the wrapping sheet are greater than the sum of the length and width of the top of the elastic module and the height of the four sides.

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