Molding system

Abstract

The embodiment of the utility model provides a forming system which comprises a smashing device and a forming assembly, the smashing device is used for smashing fiber raw materials and forming absorptive materials, and the smashing device comprises an air supplementing opening and an airflow entering area corresponding to the air supplementing opening; the forming assembly comprises a forming box and a forming belt, the forming box comprises a scattering opening, and the forming belt comprises an endless annular flexible base body and a plurality of forming holes formed in the flexible base body. The forming assembly is configured to fill the forming holes with the absorptive material through the dispersing openings to form a network-shaped structure body corresponding to the forming holes in shape, and at least one part of the forming belt is located in the airflow entering area, so that when the forming holes pass through the airflow entering area, the forming holes are not prone to falling off when passing through the airflow entering area. The air flow entering the crushing cavity cleans the forming hole, and meanwhile, the absorptive material separated from the interior of the forming hole enters the crushing device through the air supplementing opening, so that the absorptive material is reused, and the material is saved.

Description

Technical Field

[0001] The utility model relates to a molding system, in particular to a molding system for a core of a disposable sanitary product. Background Art

[0002] In disposable sanitary products, the core is the main absorption carrier of liquid. Usually, the core is formed by entangled accumulation of dispersed fluff pulp fibers. Usually, the core needs to be in the form of an independent sheet so as to be combined with the surface layer and the bottom layer to form an independent product.

[0003] In order to make the core body in the form of an independent sheet, the current common method is: a molding device includes a molding component, a demoulding cylinder connected to a negative pressure, and a transfer roller for transferring the core body from the demoulding cylinder to the substrate, a mold with a structure corresponding to the core body shape is fixed on the demoulding cylinder, and the fluff pulp fibers are spread on the mold through the molding component to form a core body, and an independent sheet body is formed after demoulding. There are two problems with this conventional method. One is that the molding net is easy to adhere to the fluff pulp and cause poor molding. The other is that the mold is a rigid structure, which makes it inconvenient to manufacture, install and use. For this reason, the application number is CN202110330155.1, and the name is "Device and method for forming the core body of disposable sanitary products". A new method is proposed. That is, a flexible movable demolding component is used between the molding component and the adsorption component. When the flexible substrate with molding holes moves to between the spreading port and the adsorption area, the molding component fills the absorbent material into the molding holes through the spreading port to form a network structure corresponding to the shape of the molding holes. On the one hand, the demolding component is no longer a rigid structure, which greatly reduces the difficulty of manufacturing and remodeling. On the other hand, the molding holes are on the moving flexible substrate, and the core body does not need to be transferred by a transfer roller after molding, which avoids the phenomenon of residual absorbent material during the secondary transfer of the transfer roller. In practical applications, it is found that a small amount of absorbent material may still adhere to the molding holes. On the one hand, a cleaning device needs to be set downstream, and on the other hand, it may cause waste of absorbent material. Utility Model Content

[0004] Therefore, the utility model provides a molding device to solve the above technical problems.

[0005] A molding system, comprising a pulverizing device and a molding assembly, wherein the pulverizing device is used to pulverize fiber raw materials and form absorbent materials, and comprises an air supply port and an air flow inlet area corresponding to the air supply port;

[0006] A molding component includes a molding box and a molding belt, wherein the molding box includes a spreading port, and the molding belt includes a flexible substrate in an endless ring and a plurality of molding holes arranged on the flexible substrate. The molding component is configured to fill the absorbent material into the molding holes through the spreading port to form a network structure corresponding to the shape of the molding holes, and at least a portion of the molding belt is located in the airflow entry area.

[0007] Among them, the distribution port and the air supply port are in opposite directions, the crushing device includes a crushing chamber, in the air flow entry area, the air flows from the outside of the crushing device to the crushing chamber, and flows into the crushing chamber through the air supply port, and the forming box includes a forming cavity, at the distribution port, the air flow flows from the inside of the forming box to the outside of the forming box.

[0008] Wherein, the flexible substrate comprises a pair of side strips and a connection area connecting the pair of side strips, and the adjacent connection area and the pair of side strips define an accommodation space, and the accommodation space is the forming hole.

[0009] The molding belt comprises a first section passing through the airflow inlet zone and a second section passing through the diffusion port, and both the first section and the second section are in a straight state.

[0010] Wherein, the crushing device is arranged just above the forming box.

[0011] Wherein, the pulverizing device comprises a discharge port, the forming box comprises an inlet, and a connecting pipe is arranged between the discharge port and the inlet, and the connecting pipe is in a vertical state.

[0012] Wherein, the side strip is a synchronous belt.

[0013] Wherein, the forming component is further provided with a supporting net below the spreading port, and the supporting net is provided with a plurality of mesh holes for air flow to pass through.

[0014] Wherein, an adsorption box is arranged below the diffusion port, the adsorption box comprises an adsorption chamber connected to the negative pressure system, and the adsorption chamber comprises an adsorption port arranged at intervals corresponding to the diffusion port.

[0015] Wherein, the molding assembly further comprises a driving device, and the driving device comprises a plurality of supporting wheels, and the molding belt is wound around the plurality of supporting wheels for driving the molding belt to move continuously.

[0016] Beneficial effect: The embodiment of the utility model provides a molding system, including a pulverizing device and a molding component, wherein the pulverizing device is used to pulverize fiber raw materials and form absorbent materials, including an air supply port and an air flow inlet area corresponding to the air supply port; the molding component includes a molding box and a molding belt, wherein the molding box includes a distribution port, and the molding belt includes a flexible substrate in an endless ring and a plurality of molding holes arranged on the flexible substrate, and the molding component is configured to fill the absorbent material into the molding hole through the distribution port to form a network structure corresponding to the shape of the molding hole, and at least a part of the molding belt is located in the air flow inlet area. In this way, when the molding hole passes through the air flow inlet area, the molding hole is cleaned by the air flow entering the pulverizing chamber, and at the same time, the absorbent material detached from the molding hole will enter the pulverizing device through the air supply port, so that it can be reused to save materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a molding system according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 Left view of;

[0019] Figure 3 for Figure 1 A top view of

[0020] Figure 4 is a schematic diagram of a flexible substrate;

[0021] Component Description:

[0022] Forming box 11; spreading port 111; inlet 112; adsorption box 12; supporting net 13; flexible base 14; side strip 141; connecting area 142; forming hole 143; crushing device 15; air supply port 151; air flow inlet area 152; web 16; laying device 161; supporting wheel 17; supporting area 171. DETAILED DESCRIPTION

[0023] Please refer to Figure 1-Figure 4 , the present application will be further described below with reference to these drawings.

[0024] The molding system provided in the embodiment of the utility model comprises a frame, a crushing device 15 and a molding assembly arranged on the frame.

[0025] The crushing device 15 is used to crush the fiber raw material and form an absorbent material. The fiber raw material is a fluff pulp board or a fluff pulp sheet. The crushing device 15 includes a toothed roller. The toothed roller breaks up the fluff pulp board or the fluff pulp sheet and separates it into discrete absorbent materials during high-speed rotation. It can be understood that the fluff pulp board or the fluff pulp sheet includes fibers, and the fibers can be wood fibers or bamboo fibers, which are not limited here.

[0026] The pulverizing device 15 includes a shell and a pulverizing chamber surrounded by the shell, the tooth roller is arranged in the pulverizing chamber, and a feed port, a discharge port and an air supply port 151 are opened on the shell, wherein the fiber raw material enters the pulverizing chamber from the feed port, and the absorbent material formed by pulverization is discharged from the pulverizing chamber through the discharge port, wherein the absorbent material is discharged from the pulverizing chamber in the form of air flow conveying, and the air supply port 151 is used for outside air to enter the pulverizing chamber during the process of pulverizing and air flow conveying the absorbent material. It can be understood that, adjacent to the air supply port 151, the pulverizing device 15 also includes an air flow entry area 152, in which air flows from the outside of the pulverizing device 15 to the pulverizing chamber, and flows into the pulverizing chamber through the air supply port 151.

[0027] The molding assembly includes a molding box 11 and a molding belt. The molding box 11 includes an inlet 112 , a molding cavity and a spreading port 111 , and is used to spread the absorbent material through the spreading port 111 .

[0028] The molding cavity described in the present embodiment is a terraced space for receiving and accommodating absorbent materials. It is understandable that the shape of the space can be arranged according to actual needs and is not limited here. Of course, in some other embodiments, the molding cavity can also be provided with, for example, a dispersion device, etc., for further dispersing the absorbent material and evenly dispersing the absorbent material through the dispersion port 111. It is understandable that in order to allow the absorbent material to be evenly dispersed in the molding cavity and dispersed through the dispersion port 111, the molding cavity is also connected to a wind conveying device. It is understandable that the molding cavity is in a positive pressure state through the wind conveying device.

[0029] The molding belt comprises an endless ring-shaped flexible substrate 14 and a plurality of molding holes 143 arranged on the flexible substrate 14 . The molding assembly is configured to fill the absorbent material into the molding holes 143 through the spreading port 111 to form a network structure corresponding to the shape of the molding holes 143 .

[0030] In this embodiment, the flexible substrate 14 includes a pair of side strips 141 and a connecting area 142 connecting the pair of side strips 141. The adjacent connecting area 142 and the side strips 141 define a accommodating space. It can be understood that the accommodating space is the forming hole 143. When the absorbent material is filled in the forming hole 143, a core is formed.

[0031] Furthermore, there are a plurality of forming holes 143 equidistantly distributed along the length direction of the flexible substrate 14 . When the forming holes 143 continuously pass through the distributing opening 111 , the absorbent material is continuously filled into the forming holes 143 to continuously form a core in a discrete state.

[0032] In this embodiment, the forming hole 143 is rectangular. It can be understood that other shapes, such as circular, elliptical, heart-shaped, etc., are also feasible.

[0033] It can be understood that the pair of side strips 141 are also in an endless ring shape, and the pair of side strips 141 are equal in length and have a thickness, and the thickness of the core body is equal to the thickness of the side strips 141.

[0034] In addition, at least a portion of the molding belt is located in the air flow entry area 152, so that when the molding hole 143 passes through the air flow entry area 152, the molding hole 143 is cleaned by the air flow entering the crushing chamber. It can be understood that in this case, the absorbent material detached from the molding hole 143 will enter the crushing chamber through the air supply port 151, so as to be reused.

[0035] Furthermore, the air supply port 151 is a straight port. If the forming belt passing through the air flow entry area 152 is defined as the first section, the first section is in a straight state.

[0036] It can be understood that the molding assembly also includes a driving device, which includes a plurality of supporting wheels 17. The molding belt is wound around the plurality of supporting wheels 17 to drive the molding belt to move continuously, thereby realizing continuous formation of core bodies in the molding holes 143. It can be understood that these core bodies are isolated by the connecting area 142.

[0037] At least one pair of supporting rollers 17 is disposed on both sides of the air supply port 151 , so that the molding belt wound around the pair of supporting rollers 17 is in a straight state on the one hand, and can stably and continuously pass through the air flow inlet area 152 on the other hand.

[0038] Furthermore, the air supply port 151 includes an end surface, and the first section is parallel to the end surface.

[0039] It can be understood that at least one pair of supporting wheels 17 is arranged on both sides of the spreading port 111, so that the forming belt wound around the pair of supporting wheels 17 passes through the spreading port 111 in a straight state, and the forming belt passing through the spreading port 111 is defined as the second section.

[0040] Furthermore, the supporting wheel 17 includes a supporting area 171 . There is a pair of supporting areas 171 , and a recessed area is provided between the pair of supporting areas 171 . The side strips 141 are provided corresponding to the supporting areas 171 .

[0041] Furthermore, at least one supporting wheel 17 is connected to the power device to drive the forming belt to move.

[0042] Furthermore, the side strip 141 is a synchronous belt including a plurality of first teeth, and the support area 171 is provided with a plurality of second teeth, and the first teeth mesh with the second teeth to drive the side strip 141 to move more stably.

[0043] Furthermore, the pulverizing device 15 is arranged directly above the forming box 11, so that the forming belt can pass through the distribution port 111 and the air flow inlet area 152 in a straight state without turning.

[0044] Furthermore, a connecting pipe is provided between the discharge port and the inlet 112, and the connecting pipe is in a vertical state.

[0045] Furthermore, the distribution port 111 and the air supply port 151 are in opposite directions.

[0046] Furthermore, the molding component is further provided with a supporting net 13 below the spreading port 111, and the supporting net 13 is provided with a plurality of mesh holes for air flow to pass through, so that when the absorbent material moves along with the air flow, the air flow passes through the mesh holes, and the absorbent material is intercepted by the supporting net 13, thereby being entangled and stacked on the supporting net 13 to form a network-like structure. It can be understood that the network-like structure is the core body. For the convenience of description, the core body refers to the network-like structure. In addition, the aperture of the mesh hole matches the size of the absorbent material to reduce the amount of absorbent material lost through the mesh hole, thereby improving the efficiency of forming the core body.

[0047] Furthermore, the spreading opening 111 is a plane, and the area of ​​the supporting net 13 corresponding to the spreading opening 111 is also a plane.

[0048] Furthermore, an adsorption box 12 is provided below the diffusion port 111 to help the air flow to pass through the supporting net 13. The general adsorption box 12 includes an adsorption chamber connected to the negative pressure system, and the adsorption chamber includes adsorption ports arranged at intervals corresponding to the diffusion port 111. When the negative pressure system forms a negative pressure in the adsorption chamber, an adsorption zone with negative pressure is formed in the area adjacent to the adsorption port, so that the air flow direction in the area between the adsorption zone and the diffusion port 111 is from the diffusion port 111 to the adsorption zone, and when there is absorbent material in the air flow, the absorbent material moves from the diffusion port 111 to the adsorption zone along with the air flow.

[0049] Furthermore, the forming assembly also includes a laying device 161, which lays the web 16 and allows the web 16 to pass through the area between the spreading port 111 and the adsorption port, so that the core is directly formed on the web 16, thereby avoiding the transfer of the core and further improving the efficiency. The web 16 can be a porous flexible material, such as toilet paper, non-woven fabric, etc.

[0050] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A molding system, comprising a crushing device and a molding assembly, characterized in that: The pulverizing device is used to pulverize the fiber raw material and form the absorbent material, and includes an air supply port and an air flow inlet area corresponding to the air supply port; A molding component includes a molding box and a molding belt, wherein the molding box includes a spreading port, and the molding belt includes a flexible substrate in an endless ring and a plurality of molding holes arranged on the flexible substrate. The molding component is configured to fill the absorbent material into the molding holes through the spreading port to form a network structure corresponding to the shape of the molding holes, and at least a portion of the molding belt is located in the airflow entry area.

2. The molding system according to claim 1, characterized in that The distribution port and the air supply port are in opposite directions. The pulverizing device includes a pulverizing chamber. In the air flow entry area, air flows from the outside of the pulverizing device to the pulverizing chamber and flows into the pulverizing chamber through the air supply port. The forming box includes a forming chamber. At the distribution port, the air flow flows from the inside of the forming box to the outside of the forming box.

3. The molding system according to claim 2, characterized in that The flexible substrate comprises a pair of side strips and a connection area connecting the pair of side strips. The adjacent connection area and the pair of side strips define an accommodation space, and the accommodation space is the forming hole.

4. The molding system according to claim 3, characterized in that The molding belt comprises a first section passing through the airflow inlet zone and a second section passing through the dispersing port, and both the first section and the second section are in a straight state.

5. The molding system according to claim 3, characterized in that The crushing device is arranged just above the forming box.

6. The molding system according to claim 5, characterized in that The pulverizing device comprises a discharge port, the forming box comprises an inlet, and a connecting pipe is arranged between the discharge port and the inlet, and the connecting pipe is in a vertical state.

7. The molding system according to claim 3, characterized in that The side strip is a synchronous belt.

8. The molding system according to claim 3, characterized in that The forming component is also provided with a supporting net below the spreading port, and the supporting net is provided with a plurality of mesh holes for air flow to pass through.

9. The molding system according to claim 8, characterized in that An adsorption box is arranged below the diffusion port, wherein the adsorption box comprises an adsorption cavity connected to the negative pressure system, and the adsorption cavity comprises an adsorption port arranged at intervals corresponding to the diffusion port.

10. The molding system according to claim 9, characterized in that The molding assembly also includes a driving device, which includes a plurality of supporting wheels. The molding belt is wound around the plurality of supporting wheels and is used to drive the molding belt to move continuously.

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