Preparation device of environment-friendly foam sound absorption board

By designing the drive cylinder and impact cylinder structure, and utilizing electric push rods and accumulator chambers to automatically remove air bubbles, the problem of air bubble gaps was solved, enabling efficient and stable preparation of foam sound-absorbing panels and improving product quality and production efficiency.

CN224391703UActive Publication Date: 2026-06-23BEIJING ZHONGYA KANGYUAN ENVIRONMENTAL PROTECTION PROJECT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGYA KANGYUAN ENVIRONMENTAL PROTECTION PROJECT CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing foam sound-absorbing board preparation equipment has difficulty in removing air bubbles from the liquid material inside the mold, resulting in air gaps in the formed sound-absorbing board, which affects the strength and sound absorption effect. In addition, demolding requires manual operation, which is unstable and affects production efficiency and quality.

Method used

The device employs a drive cylinder and impact cylinder structure. An electric push rod drives the slide plug and impact plate to vibrate and expel air bubbles. Combined with a pressure accumulator and a one-way valve, the molding plate is automatically ejected, achieving air bubble removal and stable demolding.

Benefits of technology

It effectively reduces the air bubbles in foam sound-absorbing panels, improves strength and sound absorption, reduces breakage, and enhances production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224391703U_ABST
    Figure CN224391703U_ABST
Patent Text Reader

Abstract

The utility model discloses a preparation device of environmental protection type foam sound absorption board belongs to foam board preparation technical field, a preparation device of environmental protection type foam sound absorption board, including the lower mould of fixed connection in support, support plate is fixedly connected on the support, the heating pressboard is slidably connected on the support plate, the heating pressboard is located the uppermost point of lower mould still includes: drive cylinder, fixed connection is in support, drive rod, slide connection is in drive cylinder, roof, fixed connection is in drive rod, with the roof is in lower mould, impact cylinder, fixed connection is in support, impact rod, slide connection is in impact cylinder, impact board, fixed connection is in impact rod, the utility model discloses through electric push rod drive second sliding plug reciprocating movement, make impact board hit support transmission vibration power, effectively shake out the bubble in lower mould liquid, reduce foam sound absorption board bubble gap production probability, guarantee sound absorption board overall strength and sound absorption effect, improve product quality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of foam board preparation technology, and in particular to an environmentally friendly foam sound-absorbing board preparation device. Background Technology

[0002] In the field of environmentally friendly foam sound-absorbing board production, the molding quality has a significant impact on its sound absorption performance and structural strength.

[0003] In existing preparation devices, during raw material processing, air bubbles in the liquid material inside the mold are often difficult to expel, which may result in air gaps in the formed sound-absorbing panels, weakening the overall strength and sound absorption effect. Furthermore, when demolding after molding, manual ejection is required, which may be inefficient. Uneven force during manual operation may lead to unstable ejection, easily causing damage to the sound-absorbing panels, thus affecting production efficiency and product quality. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art by providing an environmentally friendly foam sound-absorbing board preparation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An apparatus for preparing an environmentally friendly foam sound-absorbing board includes a lower mold fixedly connected to a support, a support plate fixedly connected to the support, a heating plate slidably connected to the support plate, the heating plate being located directly above the lower mold, and further includes:

[0007] The drive cylinder is fixedly connected to the bracket;

[0008] The drive rod is slidably connected to the drive cylinder;

[0009] The top plate is fixedly connected to the drive rod, and the top plate is placed in the lower mold;

[0010] The impact cylinder is fixedly connected to the bracket;

[0011] The impact rod is slidably connected to the impact cylinder;

[0012] The impact plate is fixedly connected to the impact rod.

[0013] Preferably, a partition plate is fixedly connected to the drive cylinder, and the drive cylinder is divided into a sliding cavity and a pressure accumulator cavity by the partition plate. A connecting pipe is fixedly connected to the partition plate, and the sliding cavity is connected to the pressure accumulator cavity through the connecting pipe. A first sliding plug is slidably connected to the sliding cavity, and the first sliding plug is fixedly connected to the drive rod.

[0014] Furthermore, a second sliding plug is slidably connected in the impact cylinder, the second sliding plug is fixedly connected to the impact rod, and an air supply pipe is fixedly connected to the side wall of the impact cylinder, with the end of the air supply pipe away from the impact cylinder connected to the accumulator chamber.

[0015] Furthermore, an electric push rod is fixedly connected to the bottom of the impact cylinder, and the drive end of the electric push rod is fixedly connected to the second sliding plug.

[0016] Furthermore, a first spring is fixedly connected to the first slide plug, and the end of the first spring away from the first slide plug is fixedly connected to the top wall of the slide cavity.

[0017] Furthermore, a second spring is fixedly connected to the second slide plug, and the end of the second spring away from the second slide plug is fixedly connected to the top wall inside the impact cylinder.

[0018] Preferably, a rubber pad is fixedly connected to the impact plate.

[0019] Furthermore, an air supply pipe is fixedly connected to the impact cylinder, and both the air supply pipe and the air delivery pipe are equipped with a one-way valve.

[0020] Compared with the prior art, this utility model provides an environmentally friendly foam sound-absorbing board preparation device, which has the following beneficial effects:

[0021] 1. This utility model uses an electric push rod to drive the second slide block to move back and forth, so that the impact plate hits the bracket and transmits vibration force, effectively shaking out air bubbles in the lower mold liquid, reducing the probability of air bubble gaps in the foam sound-absorbing board, ensuring the overall strength and sound absorption effect of the sound-absorbing board, and improving product quality.

[0022] 2. By storing gas in the accumulator chamber and opening the one-way solenoid valve, the gas pushes the first slide plug and drive rod upward, causing the top plate to stably push out the molded foam sound-absorbing board. This eliminates the need for manual assistance in pushing out the foam board, reduces damage to the sound-absorbing board, and effectively improves production efficiency. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the preparation device for an environmentally friendly foam sound-absorbing board proposed in this utility model. Figure 1 ;

[0024] Figure 2 A schematic diagram of the structure of the preparation device for an environmentally friendly foam sound-absorbing board proposed in this utility model. Figure 2 ;

[0025] Figure 3 This is a cross-sectional view of the apparatus for preparing an environmentally friendly foam sound-absorbing board according to this utility model;

[0026] Figure 4This utility model proposes an environmentally friendly foam sound-absorbing board preparation device. Figure 3 Enlarged view of section A in the middle;

[0027] Figure 5 This utility model proposes an environmentally friendly foam sound-absorbing board preparation device. Figure 4 Enlarged view of section B.

[0028] In the diagram: 1. Bracket; 101. Lower mold; 2. Support plate; 3. Cylinder; 301. Heating pressure plate; 4. Top plate; 401. Drive rod; 5. Drive cylinder; 501. First spring; 502. First sliding plug; 503. Divider plate; 5031. Connecting pipe; 504. Sliding cavity; 505. Accumulation chamber; 6. Impact cylinder; 601. L-shaped plate; 602. Second sliding plug; 603. Air supply pipe; 604. Air replenishment pipe; 605. Second spring; 7. Electric push rod; 8. Impact rod; 801. Impact plate; 802. Rubber pad; 9. One-way valve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1:

[0031] Reference Figures 1-5 An apparatus for preparing an environmentally friendly foam sound-absorbing board includes a lower mold 101 fixedly connected to a support 1, a support plate 2 fixedly connected to the support 1, a heating plate 301 slidably connected to the support plate 2, the heating plate 301 being located directly above the lower mold 101, and further includes:

[0032] The drive cylinder 5 is fixedly connected to the bracket 1;

[0033] Drive rod 401 is slidably connected to drive cylinder 5;

[0034] The top plate 4 is fixedly connected to the drive rod 401, and the top plate 4 is placed in the lower mold 101;

[0035] The impact cylinder 6 is fixedly connected to the bracket 1;

[0036] Impact rod 8 is slidably connected to impact cylinder 6;

[0037] Impact plate 801 is fixedly connected to impact rod 8.

[0038] A cylinder 3 is fixedly connected to the support plate 2, and the driving end of the cylinder 3 is fixedly connected to the heating pressure plate 301.

[0039] A partition plate 503 is fixedly connected in the drive cylinder 5. The drive cylinder 5 is divided into a sliding cavity 504 and a pressure accumulator 505 through the partition plate 503. A connecting pipe 5031 is fixedly connected on the partition plate 503. The sliding cavity 504 is connected to the pressure accumulator 505 through the connecting pipe 5031. A first sliding plug 502 is slidably connected in the sliding cavity 504. The first sliding plug 502 is fixedly connected to the drive rod 401.

[0040] A second sliding plug 602 is slidably connected in the impact cylinder 6. The second sliding plug 602 is fixedly connected to the impact rod 8. An air supply pipe 603 is fixedly connected to the side wall of the impact cylinder 6. The end of the air supply pipe 603 away from the impact cylinder 6 is connected to the accumulator chamber 505.

[0041] Reference Figure 2 , Figure 4 An L-shaped plate 601 is fixedly connected to the bottom of the bracket 1. The L-shaped plate 601 is fixedly connected to the impact cylinder 6 and is used to support the impact cylinder 6.

[0042] An electric push rod 7 is fixedly connected to the bottom of the impact cylinder 6, and the drive end of the electric push rod 7 is fixedly connected to the second slide plug 602.

[0043] Reference Figures 1-5 When in use, the staff pours the raw material to be processed into the lower mold 101 and starts the cylinder 3. The cylinder 3 pushes the heating plate 301 down to be in contact with the lower mold 101. At this time, the heating plate 301 closes and heats the raw material to be processed, and the raw material to be processed can expand into a foam sound-absorbing board.

[0044] Before the heating platen 301 moves down, the staff also activates the electric push rod 7. At this time, the electric push rod 7 will drive the second slide block 602 to move up and down repeatedly. The reciprocating movement of the second slide block 602 will push the impact rod 8 and the impact plate 801 to move. When the impact plate 801 moves up a certain distance, the impact plate 801 will hit the bottom wall of the bracket 1. At this time, the vibration force of the impact will be transmitted to the lower mold 101. The vibration will shake out the air bubbles in the liquid material of the lower mold 101, thereby reducing the possibility of air bubbles in the subsequent foam sound-absorbing board and ensuring the overall strength and sound absorption effect of the sound-absorbing board.

[0045] Reference Figures 3-5 During the sliding process of the second slide plug 602, the second slide plug 602 will input the gas in the impact cylinder 6 into the accumulator 505 through the gas supply pipe 603 for storage and backup.

[0046] Reference Figure 4 A pressure relief valve is fixedly connected to the drive cylinder 5, and the pressure relief valve is connected to the slide cavity 504.

[0047] It should be noted that the pressure relief valve is a commercially available solenoid valve.

[0048] It should also be noted that the connecting pipe 5031 has a commercially available one-way solenoid valve built in.

[0049] Reference Figures 1-5 After heating is completed, the one-way solenoid valve in the connecting pipe 5031 is opened, and the gas in the accumulator 505 is evenly blown into the sliding cavity 504 through the connecting pipe 5031. At this time, the first sliding plug 502 will be pushed upward, and the upward sliding of the first sliding plug 502 will push the drive rod 401 upward, and the upward sliding of the drive rod 401 will push the top plate 4 upward, thereby stably pushing out the molded foam sound-absorbing board.

[0050] In practice, a release agent is applied to the lower mold 101 to facilitate the demolding of the foam sound-absorbing board.

[0051] It should be noted that the heating plate 301 is an electric heating plate that can be purchased on the market.

[0052] A first spring 501 is fixedly connected to the first slide plug 502, and the end of the first spring 501 away from the first slide plug 502 is fixedly connected to the top wall of the inner cavity 504.

[0053] Reference Figure 4 The first spring 501 provided on the first slide 502 enables the first slide 502 to be quickly reset.

[0054] A second spring 605 is fixedly connected to the second slide plug 602, and the end of the second spring 605 away from the second slide plug 602 is fixedly connected to the top wall inside the impact cylinder 6.

[0055] Reference Figure 4 , Figure 5 The second spring 605 provided on the second slide 602 enables the second slide 602 to be quickly reset.

[0056] Reference Figure 4 , Figure 5 In practice, a rubber pad 802 is fixedly connected to the impact plate 801.

[0057] The rubber pad 802 provided on the impact plate 801 can effectively prevent the impact plate 801 from rigidly impacting the bracket 1, thereby reducing the possibility of the bracket 1 being dented due to repeated impacts.

[0058] An air supply pipe 604 is fixedly connected to the impact cylinder 6, and a one-way valve 9 is installed on both the air supply pipe 604 and the air delivery pipe 603.

[0059] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0060] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for preparing an environmentally friendly foam sound-absorbing board, comprising a lower mold (101) fixedly connected to a support (1), a support plate (2) fixedly connected to the support (1), a heating plate (301) slidably connected to the support plate (2), the heating plate (301) being located directly above the lower mold (101), characterized in that, Also includes: The drive cylinder (5) is fixedly connected to the bracket (1); The drive rod (401) is slidably connected to the drive cylinder (5); The top plate (4) is fixedly connected to the drive rod (401), and the top plate (4) is placed in the lower mold (101); The impact cylinder (6) is fixedly connected to the bracket (1); The impact rod (8) is slidably connected to the impact cylinder (6); The impact plate (801) is fixedly connected to the impact rod (8).

2. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 1, characterized in that, A partition plate (503) is fixedly connected in the drive cylinder (5). The drive cylinder (5) is divided into a sliding cavity (504) and a pressure accumulator (505) by the partition plate (503). A connecting pipe (5031) is fixedly connected on the partition plate (503). The sliding cavity (504) is connected to the pressure accumulator (505) through the connecting pipe (5031). A first sliding plug (502) is slidably connected in the sliding cavity (504). The first sliding plug (502) is fixedly connected to the drive rod (401).

3. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 2, characterized in that, A second sliding plug (602) is slidably connected in the impact cylinder (6), and the second sliding plug (602) is fixedly connected to the impact rod (8). An air supply pipe (603) is fixedly connected to the side wall of the impact cylinder (6), and the end of the air supply pipe (603) away from the impact cylinder (6) is connected to the pressure accumulator (505).

4. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 3, characterized in that, An electric push rod (7) is fixedly connected to the bottom of the impact cylinder (6), and the driving end of the electric push rod (7) is fixedly connected to the second slide plug (602).

5. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 2, characterized in that, A first spring (501) is fixedly connected to the first slide (502), and the end of the first spring (501) away from the first slide (502) is fixedly connected to the top wall of the slide cavity (504).

6. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 3, characterized in that, A second spring (605) is fixedly connected to the second slide (602), and the end of the second spring (605) away from the second slide (602) is fixedly connected to the inner top wall of the impact cylinder (6).

7. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 1, characterized in that, A rubber pad (802) is fixedly connected to the impact plate (801).

8. The apparatus for preparing an environmentally friendly foam sound-absorbing board according to claim 3, characterized in that, An air supply pipe (604) is fixedly connected to the impact cylinder (6), and a one-way valve (9) is provided on both the air supply pipe (604) and the air delivery pipe (603).