An EPS pre-foaming machine

Abstract

This utility model discloses an EPS pre-foaming machine, belonging to the field of EPS processing technology. It solves the problem of easy heat loss inside existing pre-foaming machines. The pre-foaming machine includes an outer support, a pre-foaming machine tank, and a feeding end. The pre-foaming machine tank is installed on the outer support, and the feeding end is installed on one side of the top of the pre-foaming machine tank. A heating mechanism is installed on the outside of the pre-foaming machine tank. The heating mechanism inputs steam into the pre-foaming machine tank. The heating mechanism includes a gas supply pipe, an isolation zone, and an output pipe. In this utility model, by setting up a heating mechanism, the gas supply pipe and the separation pipe are used to input heated steam into the interior of the pre-foaming machine tank to heat the material inside the pre-foaming machine tank, causing the material to expand due to heat. After heating, the steam enters the isolation zone, forming a buffer between the internal space of the pre-foaming machine tank and the external environment, reducing heat loss.

Description

Technical Field

[0001] This utility model belongs to the field of EPS processing technology, specifically relating to an EPS pre-foaming machine. Background Technology

[0002] EPS is a plasticizer, a colorless or light yellow oily liquid with low toxicity. It is commonly used as a plasticizer and stabilizer for polyvinyl chloride (PVC). Currently, EPS processing involves multiple steps, including conveying, screening, pre-foaming, and curing. Pre-foaming of EPS is performed using specialized pre-foaming machines, which involve heating expandable beads containing a foaming agent to increase their volume. This process is primarily used in the molding of foamed plastic products. It employs steam or vacuum heating to expand the beads to 20-50 times their original volume.

[0003] Current pre-foaming machines process EPS by introducing steam into the machine, using heat conduction to cause expansion within the EPS. However, this method has certain problems in actual use. Specifically, after the steam is introduced into the pre-foaming machine, some of the heat from the steam is conducted to the machine's casing. Since the casing is in direct contact with the outside air, this leads to faster heat loss and affects the stability of the pre-foaming machine during operation. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0006] An EPS pre-foaming machine includes an outer support, a pre-foaming machine tank, and a feeding end. The pre-foaming machine tank is mounted on the outer support. The feeding end is installed on one side of the top of the pre-foaming machine tank. A heating mechanism is installed on the outside of the pre-foaming machine tank, which inputs steam into the pre-foaming machine tank. The heating mechanism includes a gas supply pipe, an isolation zone, and an output pipe. A gas supply pipe is installed on the side of the pre-foaming machine tank, and the end of the gas supply pipe is connected to the inner wall of the pre-foaming machine tank. An isolation zone is formed inside the pre-foaming machine tank. Multiple sets of connection holes are formed on the pre-foaming machine tank, and the connection holes communicate with the isolation zone. An output pipe is installed at the bottom of the pre-foaming machine tank, and the output pipe communicates with the isolation zone.

[0007] As a preferred technical solution of this utility model, the heating mechanism further includes a diversion pipe and a connecting end. The diversion pipe is installed on the gas supply pipe, and the end of the diversion pipe is connected to the pre-foaming machine tank. The connecting end is fixedly installed inside the pre-foaming machine tank and is connected to the diversion pipe.

[0008] As a preferred technical solution of this utility model, the connecting end is composed of a bonding seat and a flow guide end. The bonding seat is installed on the inner wall of the pre-foaming machine tank, the flow guide end is installed on the bonding seat, and a docking groove is provided between the bonding seat and the flow guide end.

[0009] As a preferred technical solution of this utility model, it also includes an adjustment mechanism, which includes a drive motor, a main connecting shaft and a spraying component. The drive motor is installed on the upper surface of the pre-foaming machine tank. The output end of the drive motor passes through the pre-foaming machine tank and enters the pre-foaming machine tank. The main connecting shaft is installed on the output end of the drive motor. Spraying components are installed at equal intervals outside the main connecting shaft.

[0010] As a preferred embodiment of this utility model, the main connecting shaft is a hollow tubular structure with an open bottom, and the main connecting shaft is slidably inserted into the docking groove.

[0011] As a preferred technical solution of this utility model, the spraying assembly includes a connecting pipe, a spraying end and a flow groove. The connecting pipe is symmetrically installed on the outside of the main connecting shaft, and the spraying end is installed at the end of the connecting pipe. The connecting pipe and the spraying end are both provided with a flow groove, which is connected to the main connecting shaft.

[0012] As a preferred embodiment of this utility model, the pre-foaming machine tank is provided with a discharge port at the bottom and a sealing cover at the top opening of the pre-foaming machine tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention incorporates a heating mechanism that uses a gas delivery pipe and a separation pipe to introduce heated steam into the pre-foaming machine tank. This heats the material inside the tank, causing it to expand. After heating, the steam enters an isolation zone, creating a buffer between the internal space of the pre-foaming machine tank and the external environment, reducing heat loss. Furthermore, the adjustment mechanism changes the position of the steam entering the pre-foaming machine tank, ensuring that the steam heats the material more evenly and comprehensively. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model.

[0016] Figure 2 This is a plan view of the heating mechanism structure of this utility model.

[0017] Figure 3 This is a perspective view of the heating mechanism structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the adjustment mechanism in this utility model.

[0019] Figure 5 This is a schematic diagram of the spraying component in this utility model.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] 1. External support; 2. Pre-foaming machine tank; 3. Feeding end; 4. Heating mechanism; 41. Gas supply pipe; 42. Isolation zone; 43. Output pipe; 44. Diverter pipe; 45. Connecting end; 5. Adjustment mechanism; 51. Drive motor; 52. Main connecting shaft; 53. Spraying assembly; 531. Connecting pipe; 532. Spraying end; 533. Flow channel. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0025] like Figure 1 As shown, this is a structural schematic diagram of the EPS pre-foaming machine in this embodiment. The pre-foaming machine includes an outer support 1, a pre-foaming machine tank 2, and a feeding end 3. The pre-foaming machine tank 2 is installed on the outer support 1. The feeding end 3 is installed on one side of the top of the pre-foaming machine tank 2. The discharge port is installed at the bottom of the pre-foaming machine tank 2. A sealing cover is installed at the top opening of the pre-foaming machine tank 2. A heating mechanism 4 is installed on the outside of the pre-foaming machine tank 2. The heating mechanism 4 inputs steam into the pre-foaming machine tank 2.

[0026] The material to be pre-foamed is directly fed into the pre-foaming machine tank 2 through the feed end 3. Then, through the use of the heating mechanism 4, steam is introduced into the pre-foaming machine tank 2. The heat carried by the steam is used to stably heat the material in the pre-foaming machine tank 2, causing the material to expand due to the heat, thus achieving the purpose of pre-foaming treatment of the material.

[0027] As attached Figure 2 and Figure 3 As shown, this is a schematic diagram of the heating mechanism 4 in this embodiment. The heating mechanism 4 includes a gas supply pipe 41, an isolation zone 42, and an output pipe 43. A gas supply pipe 41 is installed on the side of the pre-foaming machine tank 2. The end of the gas supply pipe 41 is connected to the inner wall of the pre-foaming machine tank 2. An isolation zone 42 is provided inside the pre-foaming machine tank 2. Multiple sets of connection holes are provided on the pre-foaming machine tank 2. The connection holes are connected to the isolation zone 42. An output pipe 43 is installed at the bottom of the pre-foaming machine tank 2. The output pipe 43 is connected to the isolation zone 42. A diversion pipe 44 is installed on the gas supply pipe 41. The end of the diversion pipe 44 is connected to the pre-foaming machine tank 2. A connection end 45 is fixedly installed inside the pre-foaming machine tank 2. The connection end 45 is connected to the diversion pipe 44. The connection end 45 consists of a fitting seat and a guide end. A fitting seat is installed on the inner wall of the pre-foaming machine tank 2. A guide end is installed on the fitting seat, and a docking groove is provided between the fitting seat and the guide end.

[0028] In use, by connecting the end of the gas supply pipe 41 to the pump body, steam carrying heat is directly input into the pre-foaming machine tank 2 through the inner wall of the gas supply pipe 41 under the operation of the pump body. The steam entering the pre-foaming machine tank 2 will heat the material inside the pre-foaming machine tank 2. The heated steam will enter the isolation zone 42 through the connection hole. At this time, the steam that has lost most of its heat will enter the isolation zone 42, and the residual heat in the steam will be used to heat the entire pre-foaming machine tank 2. A buffer zone is formed between the external environment, the shell of the pre-foaming machine tank 2 itself and the material inside the pre-foaming machine tank 2, reducing the loss of heat inside the pre-foaming machine tank 2.

[0029] In this embodiment, a diversion valve body is installed on the outside of the gas supply pipe 41. Part of the steam is input into the connection end 45 through the diversion pipe 44. The connection end 45 is connected to other components, so that the steam heats the material from multiple directions.

[0030] As attached Figure 4As shown, this is a schematic diagram of the structure of the adjustment mechanism 5 in this embodiment. The adjustment mechanism 5 includes a drive motor 51, a main connecting shaft 52, and a spraying assembly 53. The drive motor 51 is installed on the upper surface of the pre-foaming machine tank 2. The output end of the drive motor 51 passes through the pre-foaming machine tank 2 and enters the pre-foaming machine tank 2. The main connecting shaft 52 is installed on the output end of the drive motor 51. The main connecting shaft 52 is a hollow tubular structure with an open bottom. The main connecting shaft 52 is slidably inserted into the docking groove. The spraying assembly 53 is installed at equal intervals on the outside of the main connecting shaft 52.

[0031] Steam input into the connection end 45 enters the main connecting shaft 52 directly through the docking groove. At this time, the steam flows into the spraying component 53 along the inner wall of the main connecting shaft 52. The steam is directly sprayed out through the spraying component 53 to heat the material inside the pre-foaming machine tank 2 from multiple directions. Furthermore, through the operation of the drive motor 51, the main connecting shaft 52 and the spraying component 53 can be driven to rotate inside the pre-foaming machine tank 2, adjusting the spraying angle of the spraying component 53 itself.

[0032] As attached Figure 5 As shown, it is a schematic diagram of the structure of the spraying assembly 53 in this embodiment. The spraying assembly 53 includes a connecting pipe 531, a spraying end 532 and a flow groove 533. The connecting pipe 531 is symmetrically installed on the outside of the main connecting shaft 52. The spraying end 532 is installed at the end of the connecting pipe 531. The flow groove 533 is opened in the interior of the connecting pipe 531 and the spraying end 532. The flow groove 533 is connected to the main connecting shaft 52.

[0033] Steam enters the main connecting shaft 52 through the docking groove, and flows into the spray end 532 through the flow groove 533. The steam is directly sprayed out through the spray end 532 to heat the material inside the pre-foaming machine tank 2 from multiple directions. The connecting pipe 531, in cooperation with the main connecting shaft 52 and the drive motor 51, is stirred inside the pre-foaming machine tank 2 to agitate the material and improve the stability of the pre-foaming machine.

[0034] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An EPS pre-foaming machine, comprising an outer support (1), a pre-foaming machine tank (2), and a feeding end (3), wherein the pre-foaming machine tank (2) is mounted on the outer support (1), and the feeding end (3) is mounted on one side of the top of the pre-foaming machine tank (2), characterized in that: A heating mechanism (4) is installed on the outside of the pre-foaming machine tank (2). The heating mechanism (4) inputs steam into the pre-foaming machine tank (2). The heating mechanism (4) includes a gas supply pipe (41), an isolation zone (42), and an output pipe (43). A gas supply pipe (41) is installed on the side of the pre-foaming machine tank (2). The end of the gas supply pipe (41) is connected to the inner wall of the pre-foaming machine tank (2). An isolation zone (42) is opened inside the pre-foaming machine tank (2). Multiple sets of connection holes are opened on the pre-foaming machine tank (2). The connection holes are connected to the isolation zone (42). An output pipe (43) is installed at the bottom of the pre-foaming machine tank (2). The output pipe (43) is connected to the isolation zone (42).

2. The EPS pre-foaming machine according to claim 1, characterized in that: The heating mechanism (4) also includes a diversion pipe (44) and a connecting end (45). The diversion pipe (44) is installed on the gas supply pipe (41). The end of the diversion pipe (44) is connected to the pre-foaming machine tank (2). The connecting end (45) is fixedly installed inside the pre-foaming machine tank (2). The connecting end (45) is connected to the diversion pipe (44).

3. The EPS pre-foaming machine according to claim 2, characterized in that: The connecting end (45) consists of a bonding seat and a guide end. The inner wall of the pre-foaming machine tank (2) is fitted with a bonding seat, and a guide end is installed on the bonding seat. A docking groove is provided between the bonding seat and the guide end.

4. The EPS pre-foaming machine according to claim 1, characterized in that: It also includes an adjustment mechanism (5), which includes a drive motor (51), a main connecting shaft (52) and a spraying assembly (53). The drive motor (51) is installed on the upper surface of the pre-foaming machine tank (2). The output end of the drive motor (51) passes through the pre-foaming machine tank (2) and enters the pre-foaming machine tank (2). The output end of the drive motor (51) is installed with a main connecting shaft (52). Spraying assemblies (53) are installed at equal intervals outside the main connecting shaft (52).

5. The EPS pre-foaming machine according to claim 4, characterized in that: The main connecting shaft (52) is a hollow tubular structure with an open bottom, and the main connecting shaft (52) is slidably inserted into the docking groove.

6. The EPS pre-foaming machine according to claim 4, characterized in that: The spraying assembly (53) includes a connecting pipe (531), a spraying end (532), and a flow channel (533). The connecting pipe (531) is symmetrically installed on the outside of the main connecting shaft (52). The spraying end (532) is installed at the end of the connecting pipe (531). The flow channel (533) is opened inside the connecting pipe (531) and the spraying end (532). The flow channel (533) is connected to the main connecting shaft (52).

7. The EPS pre-foaming machine according to claim 6, characterized in that: The pre-foaming machine tank (2) has a discharge port at the bottom and a sealing cover at the top opening of the pre-foaming machine tank (2).

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