High-sealing-performance automatic cooling device for EPS (Expandable Polystyrene) foam box

By designing an automatic cooling device for EPS foam boxes with a grid metal plate and an irregularly shaped heat-conducting plate, the problem of internal stress caused by uneven cooling rate was solved, and uniform cooling of EPS foam boxes was achieved, thereby improving the strength and durability of the products.

CN223904373UActive Publication Date: 2026-02-13TAICANG DAZHONG PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202423061992.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2026-02-13
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

During the natural cooling process of EPS foam boxes, uneven cooling rates may lead to internal stress, causing cracks or brittleness in the products, affecting their strength and durability.

Method used

An automatic cooling device for EPS foam boxes with high sealing capacity is adopted, which includes a hollow concave mold component, with a grid metal plate and an irregular heat-conducting plate inside. Through the design of the heat-absorbing cavity and the heat-conducting cavity, heat management is carried out by metal heat-conducting pipes and fillers to achieve constant temperature cooling.

Benefits of technology

This achieves uniform cooling of EPS foam boxes, avoiding internal stress problems caused by uneven cooling rates, and improving the strength and durability of the products.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223904373U_ABST
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Abstract

The utility model discloses a high-leakproofness EPS foam box automatic cooling device, and particularly relates to foam product production, the high-leakproofness EPS foam box automatic cooling device comprises a female die piece with the inner wall of a hollow structure, and the hollow structure is divided into vertical cavities arranged oppositely and a transverse cavity enabling the ends of the two vertical cavities to be communicated according to the structure; a grid metal plate is arranged in the transverse cavity; the two ends of the grid metal plate are provided with special-shaped heat conduction plates extending into the vertical cavity respectively, the vertical cavity is divided into a culvert temperature cavity and a heat absorption cavity with the special-shaped heat conduction plates as boundaries, and the heat absorption cavity is communicated with a cavity body between the grid metal plate and the top of the transverse cavity. According to the utility model, the purpose of constant-temperature cooling of the high-sealing EPS foam box product in the female die piece is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to foamed product production, concretely relates to a high sealing EPS foamed box automatic cooling device. BACKGROUND

[0002] The high sealing EPS foamed box is produced by the process of die casting, the liquid high sealing EPS foamed liquid is injected into the die, and after cooling, setting and demolding, the independent high sealing EPS foamed box is formed.

[0003] In the demolding link, the natural cooling mode is adopted because the die is made of metal, and the natural cooling can be realized. However, in the natural cooling process, if the cooling rate is uneven, internal stress may be caused, and then the product may crack or be fragile, which may affect the strength and durability in the subsequent use. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a high sealing EPS foamed box automatic cooling device to solve the above problems.

[0005] In order to realize the above purpose, the utility model provides the following technical scheme:

[0006] A high sealing EPS foamed box automatic cooling device, comprising a female die member with a hollow structure of inner wall, and the hollow structure is divided into a vertical cavity and a horizontal cavity according to the structure.

[0007] The horizontal cavity is provided with a grid metal plate.

[0008] Two ends of the grid metal plate are respectively provided with a special-shaped heat conduction plate extending into the vertical cavity, and the vertical cavity is divided into a temperature control cavity and a heat absorption cavity with the special-shaped heat conduction plate as the boundary line, and the heat absorption cavity is communicated with the cavity between the grid metal plate and the top of the horizontal cavity.

[0009] As a preferred, the temperature control cavity is provided with a metal heat conduction pipe, and the metal heat conduction pipe is divided into:

[0010] The first pipe body arranged below the grid metal plate;

[0011] The air guide pipe penetrating the temperature control cavity;

[0012] The air outlet pipe extending to the outside of the female die member;

[0013] Among them, the air outlet pipe and the air guide pipe are in vertical relationship, and the first pipe body and the air guide pipe are in vertical relationship.

[0014] As preferred, the first pipe outer wall is fixedly communicated with u-shaped pipes arranged in linear array, and the grid metal plate comprises horizontal rods and vertical rods arranged in linear array, and the horizontal rods every other one of which pass through the u-shaped pipes.

[0015] As preferred, the heat absorption cavity is filled with a filler in the cavity, and the filler comprises coarse sand and metal particles.

[0016] As preferred, the radius of the metal particles is 1mm-1.5mm.

[0017] As preferred, the special-shaped heat conduction plate is a continuous wavy metal hard thin plate.

[0018] As preferred, the air outlet pipe is connected with an external cold water or oil circulation system through a high-temperature-resistant rubber ring arranged at a port.

[0019] In the above technical solution, the heat absorption cavity is arranged near the inner part of the concave die part, thereby absorbing the heat inside, and then transferring to the special-shaped heat conduction plate and the grid metal plate, so that the temperature of the temperature containment cavity is reduced, and the heat absorption cavity is kept in a constant and stable range. The temperature containment cavity is arranged adjacent to the outer wall of the concave die part, and the temperature containment cavity is diffused to the outside through the concave die part, thereby realizing the purpose of constant temperature cooling of the high-sealing EPS foam box product in the concave die part on the basis of ensuring cooling. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Fig. 1 The overall structure schematic view provided by the embodiments of the present application is shown in the figure.

[0022] Fig. 2 The structure schematic view of the special-shaped heat conduction plate and the metal heat conduction pipe provided by the embodiments of the present application is shown in the figure.

[0023] Fig. 3 The structure schematic view of the vertical cavity and the horizontal cavity provided by the embodiments of the present application is shown in the figure.

[0024] Explanation of reference signs:

[0025] 1, the concave die; 11, vertical cavity; 12, horizontal cavity; 2, grid metal plate; 3, special-shaped heat-conducting plate; 31, temperature containment cavity; 32, heat absorption cavity; 4, metal heat-conducting pipe; 41, u-shaped pipe body; 7, high-temperature-resistant rubber ring; 8, filler. DETAILED DESCRIPTION

[0026] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0027] As shown in Figs. 1-3 A high-sealing EPS foam box automatic cooling device, comprising a concave die 1 with a hollow structure, and the hollow structure is divided into a vertical cavity 11 and a horizontal cavity 12 according to the structure, wherein the vertical cavity 11 is arranged opposite to each other, and the horizontal cavity 12 is arranged to communicate the end of the two vertical cavities 11.

[0028] The horizontal cavity 12 is provided with a grid metal plate 2.

[0029] Both ends of the grid metal plate 2 are provided with special-shaped heat-conducting plates 3 extending into the vertical cavity 11, and the vertical cavity 11 is divided into a temperature containment cavity 31 and a heat absorption cavity 32 by the special-shaped heat-conducting plates 3 as a boundary line, and the heat absorption cavity 32 is communicated with the cavity between the grid metal plate 2 and the top of the horizontal cavity 12.

[0030] Specifically, the grid metal plate 2 in the embodiment is arranged near the inner wall of the concave die 1 in the horizontal cavity 12.

[0031] Further, the special-shaped heat-conducting plate 3 is a continuous wave-shaped metal hard sheet.

[0032] In the above technology, the heat absorption cavity 32 is arranged near the inside of the concave die 1, thereby absorbing the heat inside, and then transferring to the special-shaped heat-conducting plate 3 and the grid metal plate 2, so that the temperature containment cavity 31 is attached to the temperature, thereby keeping the heat absorption cavity 32 in a constant stable range. The temperature containment cavity 31 is arranged adjacent to the outer wall of the concave die 1, and the temperature containment cavity 31 is diffused to the outside through the concave die 1, thereby realizing the purpose of constant temperature cooling of the high-sealing EPS foam box product in the concave die 1 on the basis of ensuring cooling.

[0033] As a further embodiment of the utility model, the temperature containment cavity 31 is provided with a metal heat-conducting pipe 4, which is divided into:

[0034] A first pipe body arranged below the grid metal plate 2;

[0035] An air guide pipe penetrating the temperature containment cavity 31;

[0036] An air outlet pipe extending to the outside of the concave die 1;

[0037] Among them, the air outlet pipe and the air guide pipe are in vertical relationship, and the first pipe body and the air guide pipe are in vertical relationship.

[0038] And the first pipe body outer wall fixed communication has u-shaped pipe body 41 arranged in linear array, and the grid metal plate 2 includes horizontal bar and vertical bar arranged in linear array, and the horizontal bar passes through the u-shaped pipe body 41 every interval.

[0039] Specifically, the bottom temperature of the mold member 1 after pouring is the highest, the u-shaped pipe body 41 in the embodiment is arranged in the inner wall of the horizontal cavity 12, so as to absorb heat and transfer to the first pipe body, and the air duct is vertically arranged, and the temperature in the first pipe body is necessarily greater than the air duct, and the temperature difference forms air flow, and the vertically arranged air duct forms a chimney effect, sucking the high temperature in the first pipe body, and discharging from the air outlet pipe, so as to realize rapid cooling of the temperature control cavity 31 and the space between the grid metal plate 2 and the bottom of the horizontal cavity 12.

[0040] As further provided in another embodiment of the utility model, the heat absorbing cavity 32 is filled with filler 8 in the cavity, the filler 8 includes coarse sand and metal particles, and is mixed in a ratio of 1:1. The radius of the metal particles is 1mm-1.5mm.

[0041] Specifically, the filler 8 can absorb the temperature in the mold member 1 and keep warm, so as to optimize the constant temperature effect of the heat absorbing cavity 32 and avoid the uneven cooling rate caused by temperature difference.

[0042] As further provided in another embodiment of the utility model, in order to accelerate the cooling, the high-temperature-resistant rubber ring 7 provided at the air outlet pipe port is connected with the external cold water or cold oil circulation system. The cold water or cold oil circulation system connection belongs to the prior art, and is not disclosed in detail. The cold water or cold oil flows in the metal heat conducting pipe 4, so as to realize the cooling of the heat absorbing cavity 32.

[0043] The above only describes some exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the above description and drawings are illustrative in nature and should not be construed as limiting the scope of protection of the utility model claims.

Claims

1. An automatic cooling device for high-sealing EPS foam box, characterized in that, The concave die member (1) comprises a hollow structure, and the hollow structure is divided into opposite vertical cavities (11) and horizontal cavities (12) connecting the ends of the vertical cavities (11) according to the structure. A grid metal plate (2) is arranged in the horizontal cavity (12). Two ends of the grid metal plate (2) are respectively provided with special-shaped heat-conducting plates (3) extending into the vertical cavities (11), and the vertical cavities (11) are divided into temperature control cavities (31) and heat absorption cavities (32) by the special-shaped heat-conducting plates (3) as a boundary line, and the heat absorption cavities (32) are in communication with the cavities between the grid metal plate (2) and the top of the horizontal cavity (12).

2. The automatic cooling device for high sealing EPS foam box according to claim 1, characterized in that, The temperature control cavities (31) are provided with metal heat-conducting pipes (4), and the metal heat-conducting pipes (4) are divided into: A first pipe body arranged below the grid metal plate (2); An air guide pipe arranged in the temperature control cavity (31); An air outlet pipe extending to the outside of the concave die member (1); Wherein, the air outlet pipe and the air guide pipe are in a vertical relationship, and the first pipe body and the air guide pipe are in a vertical relationship.

3. The high-seal EPS foam box automatic cooling device according to claim 2, characterized in that, The outer wall of the first pipe body is fixedly connected with u-shaped pipe bodies (41) arranged in a linear array, and the grid metal plate (2) comprises horizontal rods and vertical rods arranged in a linear array, and every other horizontal rod passes through the u-shaped pipe body (41).

4. The high-seal EPS foam box automatic cooling device according to claim 1, wherein, The heat absorption cavities (32) and the cavities are filled with fillers (8).

5. The high-seal EPS foam box automatic cooling device according to claim 4, characterized in that, The filler (8) comprises metal particles with a radius of 1mm-1.5mm.

6. The high-seal EPS foam box automatic cooling device according to claim 1, wherein, The special-shaped heat-conducting plate (3) is a continuous wave-shaped metal hard sheet.

7. The high-seal EPS foam box automatic cooling device according to claim 2, characterized in that, The air outlet pipe is connected with an external cold water or cold oil circulation system through a high-temperature-resistant rubber ring (7) arranged at the port.