Pre-expander with water vapor removal function
By introducing an exhaust hood, a blower, and a height adjustment mechanism into the pre-expansion machine, the problem of water vapor retention was solved, enabling rapid drying of foam particles and improved foaming efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHIYE MECHANICAL COMPONENTS CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-23
AI Technical Summary
The existing pre-expansion machine cannot discharge the water vapor generated during the foaming process in a timely manner, resulting in water vapor retention and affecting the rapid drying of foam particles.
A pre-evaporator with water vapor removal function was designed, including an exhaust hood, an exhaust fan, an exhaust pipe, and a height adjustment mechanism. Water vapor is drawn out of the pre-evaporator through the exhaust hood and the exhaust pipe. The height adjustment mechanism is used to adjust the distance between the exhaust hood and the water vapor outlet to control the suction intensity.
It enables rapid removal of water vapor, ensuring quick drying of foam particles, avoiding adhesion, and improving foaming efficiency.
Smart Images
Figure CN224389927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam particle pre-expansion machine technology, and more specifically, to a pre-expansion machine with water vapor removal function. Background Technology
[0002] Before casting, foam granules are used to create a foam model corresponding to the shape and size of the casting. The foam model is formed by bonding the foamed granules together. Currently, foaming of foam granules is achieved using a pre-expansion machine, which expands the foam granules to meet the requirements for creating the foam model. However, current pre-expansion machines generate a significant amount of water vapor during foaming. If this water vapor cannot be expelled from the machine in time, it will remain inside, affecting the rapid drying of the foam granules after foaming. To expel the water vapor, current pre-expansion machines are equipped with water vapor outlets. However, in the use of existing pre-expansion machines, when too much water vapor is generated during foaming, it remains inside, further hindering the rapid drying of the foam granules after foaming. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a pre-expanding machine with a water vapor removal function, which can quickly discharge excess water vapor from the pre-expanding machine body to ensure the rapid drying of foam particles after subsequent foaming.
[0004] This utility model provides a pre-expanding machine with water vapor removal function, including a pre-expanding machine body for foaming foam particles; the pre-expanding machine also includes an exhaust hood, an exhaust fan, an exhaust pipe, a corrugated telescopic pipe, and a height adjustment mechanism; the exhaust hood is located above the water vapor outlet of the pre-expanding machine body, the height adjustment mechanism is connected to the outer wall of the pre-expanding machine body, the exhaust hood is fixed to the adjustment end of the height adjustment mechanism, and the height adjustment mechanism is used to adjust the distance between the exhaust hood and the water vapor outlet; the exhaust pipe is suspended and fixed on the ceiling, one end of the corrugated telescopic pipe is connected to the air outlet located at the top of the exhaust hood, the other end of the corrugated telescopic pipe is connected to one end of the exhaust pipe, and the other end of the exhaust pipe extends to the outside and is connected to the exhaust fan.
[0005] By adopting the above-described structure, this invention, under the action of the exhaust hood, exhaust pipe, and induced draft fan, allows the exhaust hood to draw in water vapor discharged from the water vapor outlet on the pre-expanding machine body when the induced draft fan is working. It also attracts water vapor located inside the pre-expanding machine body, causing excess water vapor to be quickly discharged, thus ensuring rapid drying of the foam particles after subsequent foaming. Furthermore, the height adjustment mechanism allows for adjustment of the distance between the exhaust hood and the water vapor outlet, thereby adjusting the suction force of the exhaust hood on the water vapor. The suction intensity refers to the ability of the hood to draw water vapor. When the distance between the hood and the steam outlet decreases, the suction intensity increases. Conversely, when the distance increases, the suction intensity decreases. To control the suction intensity of water vapor in the pre-expanding machine, operators can flexibly adjust the amount of water vapor generated during foam particle foaming to ensure a reasonable water vapor content. This guarantees both normal foaming and rapid drying of the foam particles after foaming.
[0006] In one possible implementation, the height adjustment mechanism includes a sliding seat and a servo cylinder. The sliding seat is vertically slidably connected to the outer wall of the pre-launcher body. A bracket is fixed to the outer wall of the pre-launcher body, and the servo cylinder is fixed to the bracket. The upper end of the sliding seat is connected to the drive end of the servo cylinder, and the exhaust hood is welded to the sliding seat on the side facing the sliding seat. With this height adjustment mechanism, when the servo cylinder pushes the sliding seat downwards relative to the pre-launcher body, the sliding seat can drive the exhaust hood downwards. At this time, the corrugated telescopic pipe can extend, and the distance between the exhaust hood and the water vapor outlet on the pre-launcher body can decrease. When the servo cylinder drives the sliding seat upwards relative to the pre-launcher body, the sliding seat can drive the exhaust hood upwards. At this time, the corrugated telescopic pipe can retract, and the distance between the exhaust hood and the water vapor outlet on the pre-launcher body can increase. When the servo cylinder stops running, it can self-lock, i.e., the sliding seat can be locked. The system enables locking of the vertical position of the exhaust hood. The height adjustment mechanism allows for easy adjustment of the distance between the exhaust hood and the steam outlet on the pre-expanding machine. Furthermore, when the pre-expanding machine is foaming the foam particles, if a large amount of steam is generated during foaming, the distance between the exhaust hood and the steam outlet can be reduced to more effectively draw the steam out of the pre-expanding machine. Conversely, if less steam is generated, the distance can be increased to reduce the amount of steam drawn out. The exhaust hood, exhaust pipe, and blower are designed to efficiently extract the steam generated during foam particle foaming from the pre-expanding machine, maintaining the steam content within the required range. If a large amount of steam is generated during foam particle foaming and cannot be discharged in time, the foam particles will become difficult to dry after foaming, resulting in adhesion between the particles.
[0007] In one possible implementation, two slide rails are fixed on the outer side wall of the pre-launcher body, spaced apart from each other. Each slide rail extends vertically. A slider corresponding to each of the two slide rails is fixed on the inner side wall of the sliding seat. Each slider slides vertically and is engaged with the corresponding slide rail. With this structure, the sliding seat can be reliably vertically slidably connected to the outer side wall of the pre-launcher body under the cooperation of the slide rails and sliders.
[0008] In one possible implementation, a connecting rod is provided between the exhaust hood and the sliding seat. One end of the connecting rod is welded and fixed to the outer side wall of the upper part of the exhaust hood, and the other end of the connecting rod is welded and fixed to the outer side wall of the sliding seat. With this structure, the connecting rod can pull the exhaust hood and the sliding seat under the action of the connecting rod, so that the exhaust hood is more reliably fixed to the sliding seat, which can effectively prevent the exhaust hood from detaching from the sliding seat.
[0009] In one possible implementation, one end of the corrugated expansion tube is sleeved on the outside of the air outlet on the exhaust hood and circumferentially sealed to the air outlet. The other end of the corrugated expansion tube is tightly secured to the air outlet of the exhaust hood by a first clamp. With this structure, one end of the corrugated expansion tube can be reliably fastened to the air outlet on the exhaust hood and circumferentially sealed.
[0010] In one possible implementation, the other end of the corrugated expansion tube is sleeved on the outside of one end of the exhaust pipe and circumferentially sealed to the exhaust pipe. The other end of the corrugated expansion tube is tightly clamped to one end of the exhaust pipe by a second clamp. With this structure, the other end of the corrugated expansion tube can be reliably fastened to one end of the exhaust pipe and circumferentially sealed.
[0011] In one possible implementation, several lugs are fixed on the outer walls of both the front and rear sides of the exhaust duct, distributed at intervals along the extension direction of the exhaust duct. The pre-generator also includes a suspension rod that corresponds vertically to each of the lugs. The lower end of each suspension rod is fastened to the lug at the corresponding position by a nut assembly, and the upper end of each suspension rod is anchored to the ceiling. With this structure, the exhaust duct can be reliably suspended on the ceiling by the cooperation of the suspension rods and the lugs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of this utility model. Detailed Implementation
[0013] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0014] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0015] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0016] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] See Figure 1 As shown in the embodiment of this application, a pre-expanding machine with water vapor removal function is disclosed, including a pre-expanding machine body 1 for foaming foam particles; the pre-expanding machine also includes an exhaust hood 2, an exhaust fan 3, an exhaust pipe 4, a corrugated telescopic pipe 5, and a height adjustment mechanism; the exhaust hood 2 is located above the water vapor outlet of the pre-expanding machine body 1, the height adjustment mechanism is connected to the outer wall of the pre-expanding machine body 1, the exhaust hood 2 is fixed to the adjustment end of the height adjustment mechanism, and the height adjustment mechanism is used to adjust the distance between the exhaust hood 2 and the water vapor outlet 11; the exhaust pipe 4 is suspended and fixed on the ceiling, one end of the corrugated telescopic pipe 5 is connected to the air outlet located at the top of the exhaust hood 2, the other end of the corrugated telescopic pipe 5 is connected to one end of the exhaust pipe 4, and the other end of the exhaust pipe 4 extends to the outside and is connected to the exhaust fan 3.
[0018] The height adjustment mechanism includes a sliding seat 61 and a servo cylinder 62. The sliding seat 61 is vertically slidably connected to the outer wall of the pre-launcher body 1. A bracket 63 is fixed to the outer wall of the pre-launcher body 1, and the servo cylinder 62 is fixed to the bracket 63. The upper end of the sliding seat 61 is connected to the drive end of the servo cylinder 62. The exhaust hood 2 is welded to the sliding seat 61 on the side facing it. With this height adjustment mechanism, when the servo cylinder pushes the sliding seat downward relative to the pre-launcher body, the sliding seat can drive the exhaust hood downward. At this time, the corrugated expansion tube can extend, and the distance between the exhaust hood and the water vapor outlet on the pre-launcher body can decrease. When the servo cylinder drives the sliding seat upward relative to the pre-launcher body, the sliding seat can drive the exhaust hood upward. At this time, the corrugated expansion tube can retract, and the distance between the exhaust hood and the water vapor outlet on the pre-launcher body can increase. When the servo cylinder stops running, it can self-lock, meaning the sliding seat can be locked. The vertical position of the exhaust hood can be locked by a locking mechanism. The height adjustment mechanism allows for easy adjustment of the distance between the exhaust hood and the steam outlet on the pre-expanding machine. Furthermore, when the pre-expanding machine is foaming the foam particles, if a large amount of steam is generated during foaming, the distance between the exhaust hood and the steam outlet can be reduced to more effectively draw the steam out of the pre-expanding machine. Conversely, if less steam is generated, the distance can be increased to reduce the amount of steam drawn out. The exhaust hood, exhaust pipe, and fan are designed to efficiently extract the steam generated during foam particle foaming from the pre-expanding machine, maintaining the steam content within the required range. If a large amount of steam is generated during foam particle foaming and cannot be discharged in time, the foam particles will be difficult to dry after foaming, resulting in adhesion between the particles.
[0019] Two slide rails 64 are fixed on the outer side wall of the pre-launcher body 1, which are spaced apart from each other. Each slide rail 64 extends vertically. A slider 65 corresponding to each of the two slide rails 64 is fixed on the inner side wall of the sliding seat 61. Each slider 65 slides vertically and engages with the corresponding slide rail 64. With this structure, the sliding seat can be reliably vertically slidably connected to the outer side wall of the pre-launcher body under the cooperation of the slide rails and sliders.
[0020] A connecting rod 66 is also provided between the exhaust hood 2 and the sliding seat 61. One end of the connecting rod 66 is welded and fixed to the outer wall of the upper part of the exhaust hood 2, and the other end of the connecting rod 66 is welded and fixed to the outer wall of the sliding seat 61. With this structure, the connecting rod can pull the exhaust hood and the sliding seat under the action of the connecting rod, so that the exhaust hood is more reliably fixed to the sliding seat, which can effectively prevent the exhaust hood from detaching from the sliding seat.
[0021] One end of the corrugated expansion tube 5 is sleeved on the outside of the air outlet of the exhaust hood 2 and is circumferentially sealed to the air outlet. One end of the corrugated expansion tube 5 is tightly held to the air outlet of the exhaust hood 2 by the first clamp 51. With this structure, one end of the corrugated expansion tube can be reliably fastened to the air outlet of the exhaust hood and circumferentially sealed.
[0022] The other end of the corrugated expansion tube 5 is sleeved on the outside of one end of the exhaust pipe 4 and is circumferentially sealed to the exhaust pipe 4. The other end of the corrugated expansion tube 5 is tightly clamped to one end of the exhaust pipe 4 by the second clamp 52. With this structure, the other end of the corrugated expansion tube can be reliably fastened to one end of the exhaust pipe and circumferentially sealed.
[0023] Several lugs 41 are fixed on the outer walls of the front and rear sides of the exhaust pipe 4, which are spaced apart along the extension direction of the exhaust pipe 4. The preheating machine also includes a hanging rod 7 that corresponds vertically to each lug 41. The lower end of each hanging rod 7 is fastened to the lug 41 at the corresponding position by a nut assembly 71, and the upper end of each hanging rod 7 is anchored to the ceiling. With this structure, the exhaust pipe can be reliably suspended on the ceiling by the cooperation of the hanging rod and the lugs.
[0024] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A pre-expander having a water vapor removal function, comprising a pre-expander body (1) for performing a foaming process on foam particles; characterized by: The pre-generator also includes an exhaust hood (2), an exhaust fan (3), an exhaust pipe (4), a corrugated telescopic pipe (5), and a height adjustment mechanism; the exhaust hood (2) is located above the water vapor outlet (1) of the pre-generator body (1), the height adjustment mechanism is connected to the outer wall of the pre-generator body (1), the exhaust hood (2) is fixed on the adjustment end of the height adjustment mechanism, and the height adjustment mechanism is used to adjust the distance between the exhaust hood (2) and the water vapor outlet (11); the exhaust pipe (4) is suspended and fixed on the ceiling, one end of the corrugated telescopic pipe (5) is connected to the air outlet located at the top of the exhaust hood (2), the other end of the corrugated telescopic pipe (5) is connected to one end of the exhaust pipe (4), and the other end of the exhaust pipe (4) extends to the outside and is connected to the exhaust fan (3).
2. The pre-expander with a water vapor removal function according to claim 1, characterized in that: The height adjustment mechanism includes a sliding seat (61) and a servo cylinder (62); the sliding seat (61) is vertically slidably connected to the outer side wall of the pre-launcher body (1), a bracket (63) is fixed on the outer side wall of the pre-launcher body (1), the servo cylinder (62) is fixed on the bracket (63), the upper end of the sliding seat (61) is connected to the drive end of the servo cylinder (62), and the exhaust hood (2) is welded and fixed to the sliding seat (61) on the side facing the sliding seat (61).
3. The pre-evaporator with water vapor removal function according to claim 2, characterized in that: Two slide rails (64) are fixed on the outer side wall of the pre-launcher body (1) and are spaced apart. Each slide rail (64) extends vertically. A slider (65) is fixed on the inner side wall of the sliding seat (61) and corresponds one-to-one with the two slide rails (64). Each slider (65) slides vertically and engages with the corresponding slide rail (64).
4. The pre-evaporator with water vapor removal function according to claim 2 or 3, characterized in that: A connecting rod (66) is also provided between the exhaust hood (2) and the sliding seat (61). One end of the connecting rod (66) is welded and fixed to the outer wall of the upper part of the exhaust hood (2), and the other end of the connecting rod (66) is welded and fixed to the outer wall of the sliding seat (61).
5. The pre-evaporator with water vapor removal function according to claim 1, characterized in that: One end of the corrugated telescopic tube (5) is sleeved on the outside of the air outlet of the exhaust hood (2) and sealed circumferentially with the air outlet. One end of the corrugated telescopic tube (5) is tightly held on the air outlet of the exhaust hood (2) by the first clamp (51).
6. The pre-evaporator with water vapor removal function according to claim 1, characterized in that: The other end of the corrugated expansion tube (5) is sleeved on the outside of one end of the exhaust pipe (4) and is circumferentially sealed to the exhaust pipe (4). The other end of the corrugated expansion tube (5) is tightly held on one end of the exhaust pipe (4) by the second clamp (52).
7. The pre-evaporator with water vapor removal function according to claim 1, characterized in that: The exhaust pipe (4) has several lugs (41) fixed on its front and rear outer walls, which are spaced apart along the extension direction of the exhaust pipe (4). The pre-firing machine also includes a hanging rod (7) that is vertically corresponding to each of the lugs (41). The lower end of each hanging rod (7) is fastened to the lug (41) at the corresponding position by a nut assembly (71), and the upper end of each hanging rod (7) is anchored to the ceiling.