Novel forming bin

By setting up a multi-channel structure and an inverted trapezoidal transition part in the molding chamber, the problem of uneven distribution of cotton pulp and high molecular water-absorbent resin particles in the molding chamber is solved, the uniformity and stability of the cotton core are achieved, and the product quality is improved.

CN223317000UActive Publication Date: 2025-09-09QUANZHOU HANWEI MACHINERY MFG
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Patent Information

Application Number
CN202422229255.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2025-09-09
Estimated Expiration
2034-09-11

AI Technical Summary

Technical Problem

In the production of disposable sanitary products, the accumulation of cotton pulp in the molding bin causes the cotton core to be of varying thickness and the high-molecular-weight water-absorbing resin particles to be unevenly distributed, affecting product quality.

Method used

A new molding chamber is designed, in which the cavity is divided into multiple flow channels by partitions, and cotton pulp and polymer absorbent resin particles are transported separately. An inverted trapezoidal transition structure is used to accelerate the flow rate and promote uniform distribution.

Benefits of technology

The cotton pulp and high molecular water-absorbent resin particles are evenly distributed in layers, which reduces the risk of clogging and improves molding stability and product quality.

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Abstract

The utility model relates to the field of disposable hygienic product production equipment, in particular to a novel forming bin, which aims at the uniformity and stability of a strip cotton core forming process and comprises a rack, a supporting seat, a feeding hopper and a forming bin body, the forming bin body is fixedly arranged on the rack through the supporting seat, and a feeding port is formed in the upper end of the forming bin body. The feeding hopper is arranged at the upper end of the forming bin body, the feeding hopper is provided with cotton pulp feeding ports distributed in the upper end and cotton pulp discharging ports distributed in the lower end, and the cotton pulp discharging ports communicate with the feeding ports, so that a cavity is formed in the feeding hopper and the forming bin body, and a first partition plate and a second partition plate are arranged in the cavity. The cavity is divided into a first flow channel, a second flow channel and a third flow channel through the first partition plate and the second partition plate, a first macromolecule water-absorbent resin feeding pipe and a second macromolecule water-absorbent resin feeding pipe are arranged on the feeding hopper, the first macromolecule water-absorbent resin feeding pipe is communicated with the second flow channel, and the second macromolecule water-absorbent resin feeding pipe is communicated with the third flow channel.
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Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary product production equipment, in particular to a new type of molding bin. Background Art

[0002] In the production of disposable sanitary products, particularly diapers, sanitary napkins, and mattresses, the core forming process often involves cotton pulp being defibrated in a pulverizer before being transported by a forming chamber to a die wheel where it is absorbed and filled into the mold cavity, resulting in an ideal core. However, once the pulp is crushed and enters the forming chamber, it tends to accumulate inside the chamber, where it eventually peels off and falls into the die wheel cavity. This results in uneven thickness of the resulting core and poorly even distribution of the added polymer absorbent resin particles. Utility Model Content

[0003] Therefore, in order to solve the above problems, the present invention provides a new type of forming chamber, which aims to improve the uniformity and stability of the strip cotton core forming process.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A new type of molding bin, including a frame, a support base, a feed hopper and a molding bin body, the molding bin body is fixed to the frame through the support base, the upper end of the molding bin body has a feed port, the feed hopper is arranged at the upper end of the molding bin body, the feed hopper has a cotton pulp feed port distributed at the upper end and a cotton pulp discharge port distributed at the lower end, the cotton pulp discharge port is connected with the feed port, so that a cavity is formed in the feed hopper and the molding bin body, a first partition and a second partition are provided in the cavity, and the cavity is divided into a first flow channel, a second flow channel and a third flow channel by the first partition and the second partition, a first polymer water-absorbent resin feed pipe and a second polymer water-absorbent resin feed pipe are provided on the feed hopper, the first polymer water-absorbent resin feed pipe is connected with the second flow channel, and the second polymer water-absorbent resin feed pipe is connected with the third flow channel.

[0006] Furthermore, the first polymer water-absorbing resin feeding pipe is distributed on the upper side of the second polymer water-absorbing resin feeding pipe.

[0007] Furthermore, the forming bin body has a transition portion near the feed port, and the transition portion of the forming bin body is recessed inwardly, so that the cross-section of the cavity at the transition portion is in the shape of an inverted trapezoid.

[0008] Furthermore, the cotton pulp feed port and the cotton pulp discharge port of the feed hopper are coaxially arranged, and the opening of the cotton pulp feed port is larger than the opening of the cotton pulp discharge port.

[0009] Furthermore, a first observation window is provided on the molding chamber body.

[0010] Furthermore, a second observation window is provided on the feed hopper.

[0011] By adopting the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: in the new molding bin, cotton pulp enters from the cotton pulp feed port of the feed hopper, and is transported respectively through the first flow channel, the second flow channel and the third flow channel formed by the first partition and the second partition, and at the same time, the polymer water-absorbent resin particles enter the second flow channel and the third flow channel respectively through the first polymer water-absorbent resin feed pipe and the second polymer water-absorbent resin feed pipe, so that the cotton pulp and the polymer water-absorbent resin particles in the molded core form a layered distribution and form good uniformity, and most of the cotton pulp is preferentially laid on the bottom layer through the first flow channel, and then the polymer water-absorbent resin particles entering through the second channel and the third channel are laid thereon, which can reduce the risk of the polymer water-absorbent resin particles clogging the adsorption holes of the molding die wheel and improve the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view structural diagram of an embodiment of the utility model;

[0013] Figure 2 It is a left-side structural schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION

[0014] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0015] The embodiments of the present utility model are:

[0016] refer to Figure 1 and Figure 2 As shown, a new type of molding bin includes a frame 1, a support base 2, a feed hopper 3 and a molding bin body 4. The molding bin body 4 is fixed on the frame 1 through the support base 2. The upper end of the molding bin body 4 has a feed port 41. The feed hopper 3 is arranged at the upper end of the molding bin body. The feed hopper 3 has a cotton pulp feed port 31 distributed at the upper end and a cotton pulp discharge port 32 distributed at the lower end. The cotton pulp discharge port 31 is connected to the feed port 41, so that a cavity is formed in the feed hopper 3 and the molding bin body 4. A first partition 5 and a second partition 6 are provided in the cavity. The first partition 5 and the second partition 6 are provided. 5 and the second partition plate 6 divide the cavity into a first flow channel 11, a second flow channel 12 and a third flow channel 13. The feed hopper 3 is provided with a first polymer water-absorbent resin feed pipe 7 and a second polymer water-absorbent resin feed pipe 8. The first polymer water-absorbent resin feed pipe 7 is connected to the second flow channel 12, and the second polymer water-absorbent resin feed pipe 8 is connected to the third flow channel 13. The first polymer water-absorbent resin feed pipe 7 is distributed on the upper side of the second polymer water-absorbent resin feed pipe 8. A first observation window 21 is provided on the molding bin body 4, and a second observation window 22 is provided on the feed hopper.

[0017] In this new molding bin, cotton pulp enters through the cotton pulp feed port 31 of the feed hopper 3, and is transported respectively through the first flow channel 11, the second flow channel 12 and the third flow channel 13 formed by the first partition 7 and the second partition 8. At the same time, the polymer water-absorbent resin particles enter the second flow channel 12 and the third flow channel 13 through the first polymer water-absorbent resin feed pipe 7 and the second polymer water-absorbent resin feed pipe 8 respectively, so that the cotton pulp and the polymer water-absorbent resin particles in the molded core form a layered distribution and form good uniformity. Moreover, most of the cotton pulp is preferentially laid on the bottom layer through the first flow channel 11, and then the polymer water-absorbent resin particles entering through the second channel 12 and the third channel 13 are laid thereon, which can reduce the risk of the polymer water-absorbent resin particles clogging the adsorption holes of the molding die wheel and improve the stability of use.

[0018] In addition, there is a transition portion 9 near the feed port 41 in the molding bin body 4. The transition portion 9 of the molding bin body 4 is recessed inward, so that the cross-section of the cavity at the transition portion 9 is an inverted trapezoid. The cotton pulp feed port 31 of the feed hopper 3 is coaxially arranged with the cotton pulp discharge port 32. The opening of the cotton pulp feed port 31 is larger than the opening of the cotton pulp discharge port 32. The transition portion 9 with an inverted trapezoidal structure is arranged to accelerate the flow rate of the cotton pulp and the polymer water-absorbent resin particles, thereby promoting the uniformity of the cotton pulp and the polymer water-absorbent resin particles in the molding bin body 4, and helping to reduce the accumulation and aggregation of the cotton pulp and the polymer water-absorbent resin particles.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0020] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0021] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0022] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A new type of molding chamber, characterized by: It includes a frame, a support base, a feed hopper and a molding bin body, the molding bin body is fixed on the frame through the support base, the upper end of the molding bin body has a feed port, the feed hopper is arranged at the upper end of the molding bin body, the feed hopper has a cotton pulp feed port distributed at the upper end and a cotton pulp discharge port distributed at the lower end, the cotton pulp discharge port is connected with the feed port, so that a cavity is formed in the feed hopper and the molding bin body, a first partition and a second partition are provided in the cavity, the cavity is divided into a first flow channel, a second flow channel and a third flow channel by the first partition and the second partition, a first polymer water-absorbent resin feed pipe and a second polymer water-absorbent resin feed pipe are provided on the feed hopper, the first polymer water-absorbent resin feed pipe is connected with the second flow channel, and the second polymer water-absorbent resin feed pipe is connected with the third flow channel.

2. The novel molding chamber according to claim 1 is characterized in that: The first polymer water-absorbing resin feeding pipe is distributed on the upper side of the second polymer water-absorbing resin feeding pipe.

3. The novel molding chamber according to claim 1 or 2, characterized in that: The transition portion is located near the feed port in the molding bin body. The transition portion of the molding bin body is recessed inwardly, so that the cross section of the cavity at the transition portion is in an inverted trapezoidal shape.

4. The novel molding chamber according to claim 3 is characterized in that: The cotton pulp feed port and the cotton pulp discharge port of the feed hopper are coaxially arranged, and the opening of the cotton pulp feed port is larger than the opening of the cotton pulp discharge port.

5. The novel molding chamber according to claim 4 is characterized in that: A first observation window is provided on the molding bin body.

6. The novel molding chamber according to claim 5 is characterized in that: A second observation window is provided on the feed hopper.