Seamless quilt and gluing roller for manufacturing seamless quilt

Abstract

The utility model discloses a seamless quilt and a gluing roller for manufacturing the seamless quilt. The seamless quilt comprises an upper surface layer, a lower surface layer and a core material wrapped between the upper surface layer and the lower surface layer. The upper surface layer and the lower surface layer are provided with a plurality of corresponding preset areas, and the upper surface layer and the lower surface layer penetrate through the core material in the preset areas to be connected and fixed. According to the seamless quilt, aiming at the product form of the seamless quilt, the preset area is arranged, and the upper surface layer and the lower surface layer of the quilt penetrate through the inner core material in the preset area to be connected and fixed, so that the core material is limited, and the core material is prevented from moving; the method is particularly suitable for prefabricating integrated core materials and is not prone to moving.

Description

TECHNICAL FIELD

[0001] The application discloses a seamless quilt and a glue coating roller for manufacturing the seamless quilt, and relates to the technical field of household products. BACKGROUND

[0002] Quilts are common household products. Conventional quilts use sewing threads to fix quilt materials and internal core materials such as fillers, and it is inevitable that the sewing thread holes will expand and cause the fillers to leak or enter dust after long-term use.

[0003] In order to improve the use experience and service life, the industry has developed a product form of seamless quilts. The quilt materials and internal core materials are fixed by means of gluing, welding, ultrasonic welding and other seamless methods to form a quilt. Due to the need for seamless fixing, the middle part of the quilt, the upper layer and the lower layer of the quilt can only be fixed to the fillers. For example, the seamless quilt provided in Chinese Patent No. CN202775408U, Patent Name "Wireless Trace Hot Flower Quilt". This results in a lack of positioning for the remaining fillers that are not fixed to the upper layer and the lower layer, and the fillers are prone to move. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the present application is the problem of seamless quilt processing and internal core material positioning.

[0005] In order to solve the above technical problem, the technical solution of the present application provides a seamless quilt, which comprises an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer. The upper layer and the lower layer are provided with a plurality of corresponding predetermined areas, and the upper layer and the lower layer are connected and fixed through the core material at the predetermined areas.

[0006] Preferably, the edges of the upper layer and the lower layer are fixedly connected to enclose and wrap the core material.

[0007] Preferably, the core material is a prefabricated integrated core material.

[0008] Further, the core material is provided with perforations corresponding to the predetermined areas, and the upper layer and the lower layer are connected and fixed through the perforations at the predetermined areas to form a connecting part, and the connecting part is used for positioning the core material.

[0009] Further, the quilt comprises a plurality of composite layers, and the plurality of composite layers are made of materials with different elasticity, different air permeability, different warmth retention ability or different loftiness.

[0010] Optionally, the inner side of the lower layer facing the upper layer is provided with glue at the predetermined areas, and the upper layer and the lower layer are adhesively connected and fixed at the predetermined areas.

[0011] The technical scheme of the present application also provides a glue coating roller for manufacturing seamless quilt, the seamless quilt comprising an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer; the upper layer and the lower layer are provided with corresponding predetermined areas, the lower layer is coated with glue by the glue coating roller at the predetermined areas, and the upper layer and the lower layer are fixedly bonded by passing through the core material at the predetermined areas; the glue coating roller is internally provided with a glue storage cavity, and a plurality of glue outlet areas are formed on the outer circumferential surface of the glue coating roller; the development length of the outer circumferential surface of the glue coating roller matches the specification of the lower layer, and the distribution of the glue outlet areas relative to the outer circumferential surface of the glue coating roller matches the distribution of the predetermined areas relative to the lower layer; the glue coating roller rotates around its main shaft, and the lower layer is conveyed from the edge of the glue coating roller.

[0012] Preferably, the glue coating roller is internally provided with a glue pressing roller, the glue pressing roller is eccentrically arranged relative to the glue coating roller, and the outer wall of the glue pressing roller is attached to the inner wall of the glue coating roller at the position where the glue coating roller contacts the lower layer.

[0013] Preferably, the glue coating roller is provided in a sleeve structure, comprising an outer rotating cylinder and an inner fixed cylinder, the outer rotating cylinder is connected to a driving main shaft at one end of the glue coating roller, and the inner fixed cylinder is connected to a fixed frame at the other end of the glue coating roller; the inner fixed cylinder is provided in a C-shaped cross section, and the C-shaped opening faces the direction where the glue coating roller contacts the lower layer; the inner fixed cylinder is provided with closed end faces at both ends, the closed end faces, the inner fixed cylinder and the outer rotating cylinder define a closed glue storage cavity, the closed end face close to the fixed frame is provided with a positive pressure connecting port, and the positive pressure connecting port is connected to a positive pressure device to provide positive pressure for the glue storage cavity.

[0014] Further, the glue coating roller is connected to a glue conveying pipe, the glue conveying pipe is externally connected to a glue injection device and extends inwardly to the glue storage cavity, and the part of the glue conveying pipe located inside the glue coating roller is provided with a glue injection port.

[0015] Further, the glue injection port is arrayed along the length direction of the glue coating roller.

[0016] Preferably, the glue outlet area is covered with a silk screen structure.

[0017] Preferably, a fixed glue scraping plate is further attached to the outer wall of the glue coating roller, and the glue scraping plate is located in the latter half of the rotation direction of the glue coating roller, with the position where the glue coating roller contacts the lower layer as the starting point.

[0018] The technical scheme of the present application also provides a manufacturing process for seamless quilt, the seamless quilt to be manufactured comprising an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer, the upper layer and the lower layer are provided with corresponding predetermined areas, the lower layer is coated with glue at the predetermined areas, and the upper layer and the lower layer are fixedly bonded by passing through the core material at the predetermined areas;

[0019] comprising the following steps:

[0020] S1, gluing the predetermined area of the lower layer by a glue roller, the glue roller is internally provided with a glue storage cavity, and a plurality of glue discharge areas are formed on the outer peripheral surface of the glue roller; the development length of the outer peripheral surface of the glue roller matches the specification of the lower layer, and the distribution of the glue discharge areas relative to the outer peripheral surface of the glue roller matches the distribution of the predetermined area relative to the lower layer; the glue roller rotates around its main shaft, and the lower layer is conveyed from the edge of the glue roller, and the glue roller rolls on the lower layer for one round to glue all the predetermined areas;

[0021] S2, placing the core material on the non-predetermined area of the lower layer;

[0022] S3, covering the upper layer on the core material and the lower layer, and pressing the upper layer to bond and fix the upper layer and the lower layer at the predetermined area through the core material.

[0023] Preferably, the raw materials of the upper layer and the lower layer are continuous fabrics, which are stored in the form of rolls, and the upper layer and the lower layer are continuously fed through a conveyor belt or a conveyor roller when fed; the lower layer is glued by passing under the glue roller, and the glued lower layer continues to be conveyed forward; the core material is an integrated core material, and the raw material is a continuous fabric; after the glue roller station, the integrated core material is aligned and stacked with the lower layer through positioning; the upper layer is also aligned and covered on the surface of the integrated core material to form synchronous conveying of three layers.

[0024] The technical scheme of the present application also provides another seamless quilt manufacturing process, the seamless quilt to be manufactured comprises an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer, the upper layer and the lower layer are provided with a plurality of corresponding predetermined areas, the lower layer is glued at the predetermined areas, and the upper layer and the lower layer are bonded and fixed at the predetermined areas through the core material.

[0025] comprising the following steps:

[0026] S1, gluing the predetermined area of the lower layer by a glue roller, the glue roller is internally provided with a glue storage cavity, and a plurality of glue discharge areas are formed on the outer peripheral surface of the glue roller; the development length of the outer peripheral surface of the glue roller matches the specification of the lower layer, and the distribution of the glue discharge areas relative to the outer peripheral surface of the glue roller matches the distribution of the predetermined area relative to the lower layer; the glue roller rotates around its main shaft, and the lower layer is conveyed from the edge of the glue roller, and the glue roller rolls on the lower layer for one round to glue all the predetermined areas;

[0027] S2, covering the upper layer on the lower layer at the edge-pre-reserved filling opening, pressing the upper layer to make the upper layer and the lower layer fixed and bonded at the predetermined area, while avoiding the upper layer and the lower layer at the filling opening position from being fixed and bonded, thereby reserving the filling opening;

[0028] S3, filling from the filling opening between the upper layer and the lower layer;

[0029] S4, closing the filling opening after filling.

[0030] Preferably, the upper layer and the lower layer are made of continuous fabric and stored in roll form, and the upper layer and the lower layer are continuously fed by a conveying belt or a conveying roller when fed; the lower layer is conveyed under the glue applying roller to apply glue, and the glued lower layer continues to be conveyed, and after the glue applying roller station, the upper layer is aligned and stacked with the lower layer by positioning to form synchronous conveying, and then a pressing roller is used to press the upper layer to make the upper layer and the lower layer fixed and bonded at the predetermined area through the core material, and a filling opening is reserved.

[0031] The present application is directed to a seamless quilt, which is connected and fixed at a predetermined area through the internal core material to limit the movement of the core material, especially suitable for a prefabricated integrated core material. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A schematic diagram of the hierarchical structure of the seamless quilt provided in the embodiments of the present application;

[0033] Figure 2 A schematic diagram of the core material of the seamless quilt provided in the embodiments of the present application through the connection part limiting;

[0034] Figure 3 A schematic diagram of the array distribution of the connection part of the seamless quilt provided in the embodiments of the present application;

[0035] Figure 4 A schematic diagram of the glue applying distribution of the seamless quilt provided in the embodiments of the present application;

[0036] Figure 5 A schematic diagram of the integrated core material composite structure provided in the embodiments of the present application;

[0037] Figure 6 A schematic diagram of the integrated core material partitioned heterogeneous structure provided in the embodiments of the present application Figure 1 ;

[0038] Figure 7 A schematic diagram of the integrated core material partitioned heterogeneous structure provided in the embodiments of the present application Figure 2 ;

[0039] Figure 8 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0040] Figure 9 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0041] Figure 10 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0042] Figure 11 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0043] Figure 12 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0044] Figure 13 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0045] Figure 14 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0046] Figure 15 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0047] Figure 16 The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application;

[0048] The following is a schematic diagram of the glue application process for the lower layer provided in the embodiments of the present application; DETAILED DESCRIPTION

[0049] In order to make the present application more apparent, below will introduce various example embodiments. These examples are non-limiting, and it should be understood that they are used to illustrate the broader application of the apparatus, system and method. These embodiments can be changed in various ways, and can be replaced by equivalents without departing from the essential content and scope of the present application. In addition, various changes can be made to adapt to special circumstances, materials, substance components, processing types, processing actions or steps to adapt to the purpose, content or scope of the present application. All these changes will be within the scope of protection of the present application.

[0050] For any material, size, number introduced in the summary or detailed description, they will be examples only, and not limit the subject matter of the present application. Moreover, various implementations of the embodiments described herein will complement each other, rather than purely alternative, unless so stated. In other words, the implementation from one embodiment can be freely combined with the implementation of other embodiments, as the person of ordinary skill in the art would readily know, unless it is stated that the implementation is only used for replacement.

[0051] In the description of the present application, it should be noted that the terms "inner", "outer", "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is normally placed, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Embodiment 1

[0054] The present application provides a seamless quilt, referring to Figure 1 , comprising an upper layer 100, a lower layer 200 and a core material 300 wrapped between the upper layer and the lower layer, by providing a plurality of predetermined areas 400 on the upper layer and the lower layer, the upper layer 100 and the lower layer 200 are connected and fixed through the core material in the predetermined areas, forming a three-layer structure quilt.

[0055] Wherein, the upper layer and the lower layer define the core material placement space, and the upper layer and the lower layer can be two independent quilted materials, which are arranged on the upper and lower sides of the core material to wrap the core material; or the upper layer and the lower layer can be a whole quilted material which is folded to form the upper layer and the lower layer wrapping the core material.

[0056] For example, the core material 300 can be a warm-keeping medium filled between the upper layer and the lower layer, such as common down, silk, wool, cotton, and fiber; or can be a whole core material pre-prepared by a warm-keeping medium, such as a latex sheet, a polyester fiber sheet, or a mixed material sheet. For a non-integrated core material, the edges of the upper layer and the lower layer should be fixedly connected to close the wrapping of the core material; and for an integrated core material, the edges of the upper layer and the lower layer can be intermittently fixedly connected to wrap the core material.

[0057] In further embodiments, the predetermined areas include arrayed predetermined areas in the middle of the quilted surface, which can be circular, annular, dot-shaped, strip-shaped, or petal-shaped. In the predetermined areas, the core material should be avoided, i.e., the core material corresponding to the predetermined areas should be left empty, so that the upper layer and the lower layer can be connected and fixed through the left empty areas to form the connecting part 500, as shown in Figure 2 The connecting part can be used to limit the core material, and the predetermined areas can be arrayed, as shown in Figure 3 so as to form a plurality of arrayed connecting parts 500 to limit the core material. For a post-filled core material, the predetermined areas are naturally left empty, and the connecting part can be formed first, and then the core material is filled; for an integrated core material, the integrated core material should be pre-punched in the predetermined areas, and then the upper layer and the lower layer are connected with the predetermined areas to form the connecting part, so that the limiting and fixing effect is better, and the integrated core material is less likely to move.

[0058] Of course, the connecting and fixing mode of the upper layer and the lower layer includes but is not limited to gluing, welding, and ultrasonic welding. Taking gluing as an example, as shown in Figure 4 The inner side of the lower layer 200 facing the upper layer is provided with a first glue coating 210 in the predetermined areas, and the upper layer and the lower layer are glued and fixedly connected in the predetermined areas.

[0059] For example, the upper layer and the lower layer are conventional cloth, quilted material, and fabric, and the edges of the upper layer and the lower layer are seamlessly connected, as shown in Figure 4 The edge of the lower layer is provided with a second glue coating 220 on the inner side facing the upper layer, and the edge of the upper layer and the edge of the lower layer are glued and fixedly connected. The fixed position of the edges of the upper layer and the lower layer is not limited to being close to the edges, and can be fixed near the edges.

[0060] In further embodiments, as shown in Figure 5The integrated core material 300 is a preform and has a composite structure, including a double-layer composite, one layer being a weak elastic layer 300-1 and the other layer being an elastic layer 300-2. The weak elastic layer 300-1 has a smaller elasticity than the elastic layer 300-2. The composite integrated core material is used in a seamless quilt. When a user sleeps, the user can freely select a direction in which one side faces the user because the two sides have different sleeping feelings. In addition to elasticity, the layers can have different ventilation degrees, different warmth-keeping abilities, and different bulkinesses, thereby providing different sleeping feelings for the user. Similarly, the layers can be made of materials having different elasticities, different ventilation degrees, different warmth-keeping abilities, or different bulkinesses.

[0061] In another embodiment, referring to Figure 6 The integrated core material 300 is a preform and has a composite structure, including a double-layer composite, one layer being a weak elastic layer 300-1 and the other layer being an elastic layer 300-2. The weak elastic layer 300-1 has a smaller elasticity than the elastic layer 300-2. The composite integrated core material is used in a seamless quilt. When a user sleeps, the user can freely select a direction in which one side faces the user because the two sides have different sleeping feelings. In addition to elasticity, the layers can have different ventilation degrees, different warmth-keeping abilities, and different bulkinesses, thereby providing different sleeping feelings for the user. Similarly, the layers can be made of materials having different elasticities, different ventilation degrees, different warmth-keeping abilities, or different bulkinesses.

[0062] Further, referring to Figure 7 The integrated core material 300 is a preform and has a composite structure, including a double-layer composite, one layer being a weak elastic layer 300-1 and the other layer being an elastic layer 300-2. The weak elastic layer 300-1 has a smaller elasticity than the elastic layer 300-2. The composite integrated core material is used in a seamless quilt. When a user sleeps, the user can freely select a direction in which one side faces the user because the two sides have different sleeping feelings. In addition to elasticity, the layers can have different ventilation degrees, different warmth-keeping abilities, and different bulkinesses, thereby providing different sleeping feelings for the user. Similarly, the layers can be made of materials having different elasticities, different ventilation degrees, different warmth-keeping abilities, or different bulkinesses.

[0063] Embodiment 2

[0064] The application also provides a gluing roller for manufacturing a seamless quilt. The lower layer of the seamless quilt is glued by the gluing roller 600 at a predetermined area 400, referring to Figure 8The inside of the glue applying roller 600 is provided with a glue storage cavity for storing glue, and a plurality of glue discharge areas 601 are formed on the outer circumferential surface of the glue applying roller for discharging glue. The distribution of the glue discharge areas 601 corresponds to the distribution of the predetermined areas 400, and the distribution of the glue discharge areas 601 determines the glue applying position (i.e. the predetermined areas 400). Taking the expanded state of the outer circumferential surface of the glue applying roller 600 as an example, the expanded length of the outer circumferential surface of the glue applying roller 600 matches the specification of the lower layer 200 (for different specifications, such as 2m, 2.2m seamless sheets, the corresponding specification of the glue applying roller should be used when applying glue to the lower layer), and the distribution of the glue discharge areas 601 relative to the expanded surface of the outer circumferential surface of the glue applying roller corresponds to the distribution of the predetermined areas 400 relative to the lower layer 200, so that the glue applying roller 600 is rolled relative to the lower layer 200 for one turn to apply glue to all the predetermined areas 400.

[0065] Specifically, the glue applying roller 600 rotates around its main shaft, and the lower layer 200 is conveyed from the edge of the glue applying roller. For example, the conveying can be achieved by using a conveying belt or a conveying roller 700 as shown. Figure 9

[0066] Specifically, the glue discharge areas 601 are provided with a screen structure to cover the openings, so that the glue slowly seeps out and avoids excessive leakage of glue.

[0067] In further embodiments, referring to Figure 10 The glue applying roller 600 is provided with a glue pressing roller 602, which is eccentrically arranged relative to the glue applying roller 600. The outer wall of the glue pressing roller 602 is attached to the inner wall of the glue applying roller 600 at the position where the glue applying roller 600 contacts the lower layer 200 (the bottom position in the figure). The glue inside the glue applying roller 600 is generally high in viscosity, and gravity alone cannot guarantee the seepage effect. To improve the stability of glue discharge, the glue pressing roller 602 is used to press the glue relative to the glue applying roller 600, so that the glue applying roller 600 discharges glue uniformly when applying glue at the bottom. At the position where the glue pressing roller 602 contacts the glue applying roller 600, the linear speed of the glue pressing roller 602 is greater than that of the glue applying roller 600. It can be understood that, to avoid structural interference, one end of the glue applying roller 600 is closed and the other end is open. The power shaft 600-1 of the glue applying roller 600 and the power shaft 602-1 of the glue pressing roller 602 are arranged at the two ends in different directions. For example, the power shaft 602-1 of the glue pressing roller 602 is visible in the figure, the power shaft 600-1 of the glue applying roller 600 is at the closed end, and the power shaft 602-1 of the glue pressing roller 602 extends from the open end to connect the driving device (motor, pulley, track, etc.).

[0068] In further embodiments, referring to Figure 11 ​The glue coating roller 600 is connected with a glue conveying pipe 603. The glue conveying pipe 603 is externally connected with a glue injection device and extends from an open end to the glue storage cavity. The part of the glue conveying pipe 603 located inside the glue coating roller is provided with a glue injection opening. Further, the glue injection openings are arrayed along the length direction of the glue coating roller.

[0069] In further embodiments, referring to Figure 12 The outer wall of the glue coating roller is further provided with a fixed glue scraping plate 604. The glue scraping plate 604 is located at the rear half of the rotation direction of the glue coating roller and starts from the position where the glue coating roller contacts the underlying layer. Before the glue coating roller contacts the underlying layer, the glue scraping plate 604 is used to scrape off the residual glue on the outer surface of the glue coating roller, so that the glue coating roller only coats glue on the glue outlet area 601 when contacting the underlying layer.

[0070] Example 3

[0071] The embodiments of the present application also provide a glue coating roller for manufacturing a seamless quilt. The difference between the glue coating roller provided in the present example 3 and the glue coating roller provided in the example 2 is the internal structure of the glue coating roller 600. Referring to Figure 13 The glue coating roller 600 is a sleeve structure, which comprises an outer rotating cylinder 600-2 (see Figure 14 ) and an inner fixed cylinder 600-3 (see Figure 15 ). The inner fixed cylinder 600-3 is arranged in the inner part of the outer rotating cylinder 600-2. One end of the outer rotating cylinder 600-2 is open, and the other end is connected with a power shaft 600-1 to rotate outside the inner fixed cylinder 600-3. The inner fixed cylinder 600-3 is fixed by a fixed frame 600-4 connected with the open end. Referring to Figure 15 and Figure 16 The inner fixed cylinder 600-3 has a C-shaped cross section, and the C-shaped opening is directed to the direction where the glue coating roller contacts the underlying layer (downward in the drawings). The two ends of the inner fixed cylinder 600-3 are closed end plates. The closed end plates, the inner fixed cylinder 600-3 and the outer rotating cylinder 600-2 define a closed glue storage cavity. The glue liquid 800 is located at the lower part of the glue storage cavity under the action of gravity. The closed end plate located at the open end is provided with a positive pressure connection opening 600-5. The positive pressure connection opening 600-5 is connected with a positive pressure device to provide positive pressure for the glue storage cavity. The C-shaped opening of the inner fixed cylinder 600-3 is directed to the direction where the glue coating roller contacts the underlying layer. Only the glue outlet area 601 in this direction is subjected to the action of positive pressure, so that the glue can be stably coated from the glue outlet area 601 to the underlying layer.

[0072] The other structures not involved can refer to the example 2. Similarly, the glue conveying pipe passes through the closed end plate located at the open end to enter the glue storage cavity.

[0073] Example 4

[0074] The application also provides a process for manufacturing a seamless quilt by using the glue coating roller, wherein the seamless quilt to be manufactured comprises an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer, the upper layer and the lower layer are provided with a plurality of predetermined areas corresponding to each other, the lower layer is coated with glue at the predetermined areas, and the upper layer and the lower layer are bonded and fixed by passing through the core material at the predetermined areas.

[0075] The process comprises the following steps:

[0076] S1, coating glue on the predetermined areas of the lower layer by using a glue coating roller, wherein the glue coating roller is internally provided with a glue storage cavity, a plurality of glue outlet areas are formed on the outer circumferential surface of the glue coating roller, the spreading length of the outer circumferential surface of the glue coating roller matches the specifications of the lower layer, the distribution of the glue outlet areas on the outer circumferential surface of the glue coating roller is consistent with the distribution of the predetermined areas on the lower layer, the glue coating roller rotates around its main shaft, and the lower layer is conveyed from the edge of the glue coating roller, so that the glue coating roller is relatively rolled on the lower layer for one round to coat all the predetermined areas with glue;

[0077] S2, placing the core material on the non-predetermined areas of the lower layer;

[0078] S3, covering the upper layer on the core material and the lower layer, and bonding and fixing the upper layer and the lower layer by passing through the core material at the predetermined areas.

[0079] It should be noted that in step S2, the core material generally refers to a prefabricated integrated core material, i.e., a sheet-shaped core material, and the prefabricated integrated core material is pre-holed at the predetermined areas.

[0080] In further embodiments, the raw materials of the lower layer and the upper layer are continuous fabrics, which are stored in the form of rolls, and are continuously fed by a conveying belt or a conveying roller when needed. The lower layer is conveyed and coated with glue below the glue coating roller, and the lower layer coated with glue is continuously conveyed forward. The raw material of the integrated core material is also a continuous fabric, which is aligned and stacked with the lower layer after the glue coating roller station through positioning. Then, the upper layer is also aligned and covered on the surface of the integrated core material to form three-layer synchronous conveying. Then, the upper layer and the lower layer are bonded and fixed by passing through the core material at the predetermined areas by using a pressing roller to press the upper layer.

[0081] Example 5

[0082] For the filling core material, the process for manufacturing a seamless quilt by using the glue coating roller is different: the upper layer and the lower layer are first glued and fixed, and a filling opening is reserved at the quilt edge, and the filling core material is injected from the filling opening. The process comprises the following steps:

[0083] S1, glue the predetermined area of the lower layer by a glue roller, the glue roller is internally provided with a glue storage cavity, and a plurality of glue discharge areas are formed on the outer circumferential surface of the glue roller; the development length of the outer circumferential surface of the glue roller matches the specification of the lower layer, the distribution of the glue discharge areas relative to the outer circumferential surface of the glue roller is consistent with the distribution of the predetermined area relative to the lower layer; the glue roller rotates around its main shaft, and the lower layer is conveyed from the edge of the glue roller, and the glue roller is relatively rolled on the lower layer for one turn to glue all the predetermined areas;

[0084] S2, cover the upper layer on the lower layer by reserving a filling opening at the edge, set a barrier at the edge, press the upper layer to bond and fix the upper layer and the lower layer at the predetermined area, avoid bonding and fixing at the position of the barrier, and remove the barrier to reserve the filling opening;

[0085] S3, fill the upper layer and the lower layer from the filling opening;

[0086] S4, glue and bond the filling opening after filling.

[0087] In further embodiments, the raw materials of the lower layer and the upper layer are continuous fabrics, which are stored in the form of rolls, and are continuously fed by a conveying belt or a conveying roller when needed. The lower layer is conveyed and glued below the glue roller, and the glued lower layer continues to be conveyed forward. After the glue roller station, the upper layer is aligned and stacked with the lower layer by positioning, forming synchronous conveying, and then the upper layer is pressed by a pressing roller to bond and fix the upper layer and the lower layer at the predetermined area through the core material, and a filling opening is reserved.

[0088] The above is only a preferred embodiment of the present application, and is not a limitation on the form and substance of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and supplements can be made without departing from the present application, and these improvements and supplements should be considered as the protection scope of the present application. For those skilled in the art, some minor changes, modifications and equivalent changes made by utilizing the disclosed technical content without departing from the content and scope of the present application are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above-mentioned embodiments according to the essential technology of the present application are still within the scope of the technical solutions of the present application.

Claims

1. A seamless diaper characterized by, The seamless blanket comprises an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer; the upper layer and the lower layer are provided with corresponding predetermined areas, and the upper layer and the lower layer are connected and fixed through the core material at the predetermined areas.

2. A seamless cover according to claim 1, wherein, The edges of the upper layer and the lower layer are fixedly connected to enclose and wrap the core material.

3. A seamless cover according to claim 1, wherein, The core material is a prefabricated integrated core material.

4. A seamless bag according to claim 3, wherein, The core material is provided with perforations corresponding to the predetermined areas, and the upper layer and the lower layer are connected and fixed through the perforations at the predetermined areas to form connecting portions for limiting the core material.

5. A seamless bag according to claim 3, wherein, The integrated core material is provided with a composite structure comprising multiple composite layers; the multiple composite layers are made of materials with different elasticity, different air permeability, different warmth retention capacity or different loftiness.

6. A seamless cover according to any one of claims 1-5, characterized in that The inner side of the lower layer facing the upper layer is provided with glue at the predetermined areas, and the upper layer and the lower layer are adhesively connected and fixed at the predetermined areas.

7. A glue applicator roll for making a seamless quilt, characterized by The seamless blanket comprises an upper layer, a lower layer and a core material wrapped between the upper layer and the lower layer; the upper layer and the lower layer are provided with corresponding predetermined areas, and the lower layer is glued at the predetermined areas by a glue applying roller, and the upper layer and the lower layer are adhesively connected and fixed through the core material at the predetermined areas; the glue applying roller is internally provided with a glue storage cavity, and a plurality of glue discharging areas are formed on the outer periphery of the glue applying roller; the expansion length of the outer periphery of the glue applying roller matches the specifications of the lower layer, the distribution of the glue discharging areas on the outer periphery of the glue applying roller matches the distribution of the predetermined areas on the lower layer, and the lower layer is conveyed from the edge of the glue applying roller.

8. The glue roller for making a seamless quilt according to claim 7, wherein The glue applying roller is internally provided with a glue pressing roller, which is eccentrically arranged relative to the glue applying roller and has an outer wall that is in contact with the inner wall of the glue applying roller at the position where the glue applying roller contacts the lower layer.

9. The glue roller for making a seamless quilt according to claim 7, wherein The glue applying roller is provided with a sleeve structure comprising an outer rotating cylinder and an inner fixed cylinder; the outer rotating cylinder is connected to a driving main shaft at one end of the glue applying roller, and the inner fixed cylinder is connected to a fixed frame at the other end of the glue applying roller; the inner fixed cylinder is provided with a C-shaped cross section, and the C-shaped opening faces the direction where the glue applying roller contacts the lower layer; the inner fixed cylinder is provided with closed end faces at both ends, and the closed end faces, the inner fixed cylinder and the outer rotating cylinder define a closed glue storage cavity; the closed end face close to the fixed frame is provided with a positive pressure connecting port, and the positive pressure connecting port is connected to a positive pressure device to provide positive pressure for the glue storage cavity.

10. A glue roller for making a seamless quilt according to any one of claims 8-9, characterized in that, The glue applying roller is connected to a glue conveying pipe, which is externally connected to a glue injection device and internally extends to the glue storage cavity; the part of the glue conveying pipe located inside the glue applying roller is provided with glue injection ports.

11. The glue roller for making a seamless quilt according to claim 10, wherein The glue injection ports are arrayed along the length direction of the glue applying roller.

12. The glue roller for making a seamless quilt according to claim 7, wherein The glue discharging areas are covered with a wire mesh structure.

13. The glue roller for making a seamless quilt according to claim 7, wherein A fixed glue scraping plate is arranged on the outer wall of the glue applying roller; the glue scraping plate is located in the second half of the rotation direction of the glue applying roller, and the starting point is the position where the glue applying roller contacts the lower layer.

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