Down laying cover for paper diaper production

By designing a velvet cover for diaper production, the separation of the cutting channel and polymer cutting pipe is used to achieve accurate spread of raw materials and polymer materials, the problem of difficulty in achieving accurate spread of traditional velvet covers is solved, and resource utilization and production efficiency are improved.

CN222788008UActive Publication Date: 2025-04-25FUJIAN DENUOWEI MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202421210918.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-04-25
Estimated Expiration
2034-05-30

AI Technical Summary

Technical Problem

Traditional velvet covers are difficult to accurately spread raw materials and polymer materials, resulting in the inability to concentrate on the required areas of the fabric and waste resources.

Method used

A velvet cover for diaper production was designed, and the mixing and precise spread of raw materials and polymer materials were achieved through the separation of the cutting channel and polymer material through the separation of the cutting channel and the polymer material. The device includes a frame, a feeding channel, a cotton box, a polymer feeding pipe, a molded negative pressure chamber, a compacted negative pressure chamber and a conveying negative pressure chamber. The negative pressure chamber and a pipeline interface are used to achieve the forming, compacting and adsorption transmission of raw materials.

Benefits of technology

By accurately positioning and sowing polymer materials, the amount of polymer materials is saved, and the recycle of the cotton return channel is increased to supplement the cotton core, improving production efficiency and resource utilization.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222788008U_ABST
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Abstract

The utility model discloses a velvet laying cover for paper diaper production. The velvet laying cover comprises a rack, a discharging channel, a lower cotton box and a macromolecule discharging pipe. The blanking channel is designed, the lower cotton box and the macromolecule blanking pipe are arranged in a split mode, raw materials are put in from the top end of the lower cotton box, macromolecule materials are put in from the macromolecule blanking pipe, the raw materials and the macromolecule materials can be mixed at the blanking channel, and therefore the macromolecule materials can be precisely positioned and sown according to requirements. High polymer materials can be concentrated in required areas of the fabric, the dosage of the high polymer materials is saved, then mixed raw materials sequentially pass through the forming negative pressure bin, the compacting negative pressure bin and the conveying negative pressure bin, the forming negative pressure bin can be used for forming the raw materials, the compacting negative pressure bin can compact the formed fabric, and the conveying negative pressure bin is used for conveying the raw materials. The conveying negative pressure bin is used for adsorbing and conveying the fabric, redundant raw materials return to the discharging channel again through the cotton returning channel, and supplement of the cotton core amount of the middle protruding part is increased through circulation of residual materials.
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Description

Technical Field

[0001] The utility model relates to the relevant field of cotton core manufacturing, in particular to a fleece cover for diaper production. Background Art

[0002] The absorbent core layer made of wood pulp fiber and polymer absorbent resin by heat sealing or gluing is now widely used in the production of sanitary napkin absorbents and diapers to achieve better liquid absorption function. The absorbent core layer containing polymer particles can be obtained by the following method: the wood pulp paper is crushed by the wood pulp crushing structure to obtain wood pulp fiber, the wood pulp fiber and polymer particles (provided by the polymer supply structure) are mixed in a proportion in the velvet cover, and a wood pulp layer is formed on the cotton collecting drum, and the wood pulp layer is transferred to the absorbent paper by the negative pressure transfer structure. The absorbent paper is output by the absorbent paper supply structure and sprayed with glue on its upper side by the glue spraying structure, and the wood pulp layer adheres to the absorbent paper. Later, the two sides of the absorbent paper (extending outward relative to the wood pulp layer) can be folded upward to cover the upper side of the wood pulp layer as needed.

[0003] Traditional pile hoods can only realize the molding of fabrics, but existing pile hoods usually pour raw materials and polymer materials simultaneously from the feed inlet, which can only realize mixed spreading of the entire fabric, and it is difficult to accurately spread the fabric to the required area. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a fleece cover for producing diapers.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a velvet cover for diaper production, including a frame, a feeding channel, a cotton feeding box, a polymer feeding pipe, a forming negative pressure bin, a compacting negative pressure bin, a conveying negative pressure bin, a main negative pressure pipeline interface, a secondary negative pressure pipeline interface, a cotton balancing brush, a cotton return channel, a cotton return negative pressure air supply port 1 and a cotton return negative pressure air supply port 2, the feeding channel is vertically connected to the right side of the top of the frame, a cotton feeding box is arranged at the top of the feeding channel, a polymer feeding pipe is obliquely connected to the middle end of the right side of the feeding channel, and the molding negative pressure bin, the compacting negative pressure bin and the conveying negative pressure bin are sequentially connected inside the frame from right to left. The molding negative pressure bin has a main negative pressure pipeline interface connected to its front end, and the molding negative pressure bin is communicated with the main negative pressure pipeline interface, the conveying negative pressure bin has a secondary negative pressure pipeline interface connected to its front end, and the secondary negative pressure pipeline interface is respectively communicated with the compacting negative pressure bin and the conveying negative pressure bin, a cotton evenly distributed brush is arranged on the left side of the top of the frame, the middle part of the top of the frame is connected with the left side of the return cotton channel, and the right side of the return cotton channel is connected with the unloading channel, a return cotton negative pressure air supply port 1 is arranged on the upper end of the left side of the frame, a return cotton negative pressure air supply port 2 is arranged on the middle end of the left side of the frame, and the return cotton negative pressure air supply port 1 and the return cotton negative pressure air supply port 2 are both communicated with the return cotton channel.

[0006] Preferably, the lower cotton box is wider at the top and narrower at the bottom as a whole, and the interior of the lower cotton box is smooth.

[0007] Preferably, an arc-shaped channel is provided between the frame and the forming negative pressure bin, the compacting negative pressure bin and the conveying negative pressure bin.

[0008] Preferably, the cotton recycling channel is in an arch shape as a whole, and is wider on the left and narrower on the right.

[0009] Preferably, the forming negative pressure bin, the compacting negative pressure bin and the conveying negative pressure bin form a fan shape, and an arc-shaped material guide plate is provided on the right side of the bottom end of the frame.

[0010] Beneficial effects of the utility model:

[0011] This utility model is adopted.

[0012] The utility model designs a material discharge channel, and the cotton discharge box and the polymer discharge pipe are separately arranged. The raw materials are put in from the top of the cotton discharge box, and the polymer material is put in from the polymer discharge pipe. The raw materials and the polymer material can be mixed in the material discharge channel, so that the polymer material can be accurately positioned and sown according to demand, and the polymer material can be concentrated in the required area of ​​the fabric, saving the amount of the polymer material. Then the mixed raw materials pass through the molding negative pressure bin, the compacting negative pressure bin and the conveying negative pressure bin in sequence. The molding negative pressure bin can be used to realize the molding of the raw materials, the compacting negative pressure bin can compact the formed fabric, and the conveying negative pressure bin is used for the adsorption and transmission of the fabric. The excess raw materials return to the material discharge channel through the cotton return channel, and the circulation of the residual material is used to increase the replenishment of the cotton core amount of the convex part. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0016] Among them: frame-1, unloading channel-2, cotton unloading box-3, polymer unloading pipe-4, molding negative pressure bin-5, compacting negative pressure bin-6, conveying negative pressure bin-7, main negative pressure pipeline interface-8, secondary negative pressure pipeline interface-9, cotton balancing brush-10, return cotton channel-11, return cotton negative pressure air supply port 1-12, return cotton negative pressure air supply port 2-13. DETAILED DESCRIPTION

[0017] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0018] See also Figure 1-3The utility model provides a velvet cover for diaper production, including a frame 1, a feeding channel 2, a cotton feeding box 3, a polymer feeding pipe 4, a forming negative pressure bin 5, a compacting negative pressure bin 6, a conveying negative pressure bin 7, a main negative pressure pipeline interface 8, a secondary negative pressure pipeline interface 9, a cotton balancing brush 10, a return cotton channel 11, a return cotton negative pressure air supply port 12 and a return cotton negative pressure air supply port 2 13. The feeding channel 2 is vertically connected to the right side of the top of the frame 1, and the cotton feeding box 3 is bolted to the top of the feeding channel 2. The cotton box 3 is wide at the top and narrow at the bottom as a whole, and the interior of the cotton box 3 is smooth, which is convenient for the entry of raw materials. The polymer feeding pipe 4 is obliquely connected to the middle end of the right side of the feeding channel 2 for adding polymer materials. The molding negative pressure bin 5, the compacting negative pressure bin 6 and the conveying negative pressure bin 7 are connected to the inside of the frame 1 from right to left. The front end of the molding negative pressure bin 5 A main negative pressure pipeline interface 8 is connected, and the forming negative pressure bin 5 is connected to the main negative pressure pipeline interface 8. A secondary negative pressure pipeline interface 9 is connected to the front end of the conveying negative pressure bin 7, and the secondary negative pressure pipeline interface 9 is respectively connected to the compacting negative pressure bin 6 and the conveying negative pressure bin 7. A cotton brush 10 is arranged on the left side of the top of the frame 1 to facilitate the flattening of the surface fiber. The middle part of the top of the frame 1 is connected to the left side of the return cotton channel 11, and the right side of the return cotton channel 11 is connected to the unloading channel 2. The return cotton channel 11 is arched as a whole, and is wide on the left and narrow on the right, so as to realize the recycling of residual raw materials. A return cotton negative pressure air supply port 1 12 is arranged on the upper end of the left side of the frame 1, and a return cotton negative pressure air supply port 2 13 is arranged on the middle end of the left side of the frame 1, and the return cotton negative pressure air supply port 1 12 and the return cotton negative pressure air supply port 2 13 are both connected to the return cotton channel 11.

[0019] There are arc-shaped channels between the frame 1 and the forming negative pressure bin 5, the compacting negative pressure bin 6 and the conveying negative pressure bin 7 to facilitate the transmission of raw materials.

[0020] Among them, the forming negative pressure bin 5, the compacting negative pressure bin 6 and the conveying negative pressure bin 7 form a fan shape, and an arc-shaped material guide plate is arranged on the right side of the bottom end of the frame 1 to guide the raw materials.

[0021] Specifically, the die wheel is first installed inside the frame 1, and then the raw material is put in from the top of the lower cotton box 3, and the polymer material can be put in from the polymer discharge pipe 4. The raw material and the polymer material can be mixed in the discharge channel 2, and then fall into the arc channel inside the frame 1. The die wheel can first push the raw material, and pass through the forming negative pressure bin 5, the compacting negative pressure bin 6 and the conveying negative pressure bin 7 in sequence. The main negative pressure pipeline interface 8 can make the forming negative pressure bin 5 generate negative pressure to realize the molding of the raw material, and the secondary negative pressure pipeline interface 9 can make the compacting negative pressure bin 6 and the conveying negative pressure bin 7 generate negative pressure. The negative pressure bin 6 can compact the formed fabrics, and the negative pressure bin 7 is used for the adsorption and transmission of the fabrics. The negative pressure air inlet 12 for the returned cotton and the negative pressure air inlet 2 for the returned cotton 13 can generate negative pressure inside the returned cotton channel 11, so that the excess raw materials can return to the unloading channel 2 through the returned cotton channel 11, and the circulation of the residual materials can be used to increase the replenishment of the cotton core in the convex part. The unloading cotton box 3 and the polymer unloading pipe 4 are separately arranged, so that the polymer material can be accurately positioned and sown according to the needs, and the polymer material can be concentrated in the required area of ​​the fabric, saving the amount of polymer material.

[0022] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fleece cover for diaper production, characterized in that: The invention comprises a frame (1), a material discharge channel (2), a cotton discharge box (3), a polymer material discharge pipe (4), a molding negative pressure bin (5), a compacting negative pressure bin (6), a conveying negative pressure bin (7), a main negative pressure pipeline interface (8), a secondary negative pressure pipeline interface (9), a cotton balancing brush (10), a return cotton channel (11), a return cotton negative pressure air supply port 1 (12) and a return cotton negative pressure air supply port 2 (13), wherein the top right side of the frame (1) is vertically connected with the material discharge channel (2), the top of the material discharge channel (2) is provided with a cotton discharge box (3), the middle right side of the material discharge channel (2) is obliquely connected with the polymer material discharge pipe (4), the molding negative pressure bin (5), the compacting negative pressure bin (6) and the conveying negative pressure bin (7) are sequentially connected inside the frame (1) from right to left, the front end of the molding negative pressure bin (5) is connected with the main A negative pressure pipeline interface (8) is provided, and the forming negative pressure bin (5) is connected to the main negative pressure pipeline interface (8); the front end of the conveying negative pressure bin (7) is connected to a secondary negative pressure pipeline interface (9), and the secondary negative pressure pipeline interface (9) is respectively connected to the compacting negative pressure bin (6) and the conveying negative pressure bin (7); a cotton balancing brush (10) is provided on the left side of the top of the frame (1); the middle of the top of the frame (1) is connected to the left side of the return cotton channel (11), and the right side of the return cotton channel (11) is connected to the unloading channel (2); a return cotton negative pressure air supply port 1 (12) is provided on the upper left end of the frame (1); a return cotton negative pressure air supply port 2 (13) is provided on the middle left end of the frame (1); and the return cotton negative pressure air supply port 1 (12) and the return cotton negative pressure air supply port 2 (13) are both connected to the return cotton channel (11).

2. A fleece cover for diaper production according to claim 1, characterized in that: The lower cotton box (3) is generally wide at the top and narrow at the bottom, and the interior of the lower cotton box (3) is smooth.

3. The fleece cover for diaper production according to claim 1, characterized in that: An arc-shaped channel is provided between the frame (1) and the forming negative pressure bin (5), the compacting negative pressure bin (6) and the conveying negative pressure bin (7).

4. The fleece cover for diaper production according to claim 1, characterized in that: The cotton return channel (11) is in an overall arch shape, and is wider on the left and narrower on the right.

5. The fleece cover for diaper production according to claim 1, characterized in that: The forming negative pressure bin (5), the compacting negative pressure bin (6) and the conveying negative pressure bin (7) form a fan shape, and an arc-shaped material guide plate is arranged on the right side of the bottom end of the frame (1).