Foam forming equipment

By using a floating plate and connecting plate structure in the foam forming equipment, combined with the design of cylinders and springs, the problem of inconsistent material top height was solved, achieving flat forming of the material, reducing waste, improving operating efficiency and reducing costs.

CN224240181UActive Publication Date: 2026-05-15DONGGUAN FUZENG FOAM PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN FUZENG FOAM PLASTIC CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the mold cavity of foam molding equipment, it is difficult to keep the height of the material top consistent, resulting in unevenness after demolding, which affects the operation efficiency and generates waste of excess material.

Method used

The system employs a floating plate and connecting plate structure. The height of the connecting plate and floating plate is adjusted by a cylinder, and the elasticity of the spring is used to press the material, ensuring that the top of the material is flat. The position of the floating plate is precisely controlled by a pressure sensor.

Benefits of technology

This achieves a flat top after material forming, reducing subsequent cutting waste, improving operational efficiency, and saving costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses foam forming equipment. The foam forming equipment comprises a mounting seat, a forming barrel, a fixing frame, a barrel cover, a connecting plate and a floating plate, the forming barrel is placed in the mounting seat; the fixing frame is fixedly connected to the top end of the mounting base, a first lifting cylinder and a second lifting cylinder are mounted in the fixing frame, the first lifting cylinder is downwards connected with a first output shaft towards the forming barrel, and the second lifting cylinder is downwards connected with a second output shaft; the barrel cover is connected to the tail end of the first output shaft; the connecting plate is connected to the tail end of the second output shaft, and the second output shaft penetrates through the barrel cover, so that the connecting plate is arranged below the barrel cover in parallel; the floating plate is connected below the connecting plate in a lifting mode through a connecting rod penetrating through the connecting plate, the connecting rod is sleeved with a spring, and the spring is clamped between the floating plate and the connecting plate, so that the floating plate can float at the top end of a material in the forming barrel and tightly press the material under the elastic action of the spring, and the top end can be kept flat after the material is formed. Excess materials cut by foam cutting equipment subsequently are reduced, and the cost is saved.
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Description

Technical Field

[0001] This utility model relates to the field of foam processing technology, and in particular to a foam forming equipment. Background Technology

[0002] Foam is a material made by foaming plastic particles. Due to its advantages such as elasticity, light weight, quick pressure-sensitive fixing, ease of use, flexibility, ultra-thin thickness, and reliable performance, it can be widely used in industries such as sofas, mattresses, clothing, and soft packaging.

[0003] Driven by conservation and environmental protection requirements, some manufacturers collect substandard materials and defective products from foam production. This collected foam is then crushed, mixed with adhesive, and molded again using molding equipment to produce compliant foam, thus achieving recycling. However, the expansion of the material within the mold cavity of the molding equipment often results in inconsistent heights at the top. After demolding, the uneven material requires further cutting at the top, impacting efficiency and generating additional waste. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a foam forming device to solve the above problems.

[0005] The present invention adopts the following technical solution:

[0006] This utility model first provides a foam forming equipment, which includes a mounting base, a forming barrel, a fixing frame, a barrel cover, a connecting plate and a floating plate.

[0007] The forming barrel is placed inside the mounting base; the fixing frame is fixedly connected to the top of the mounting base, and a first lifting cylinder and a second lifting cylinder are installed inside the fixing frame. The first lifting cylinder is connected to a first output shaft facing downward toward the forming barrel, and the second lifting cylinder is connected to a second output shaft facing downward; the barrel lid is connected to the end of the first output shaft and is used to seal the forming barrel; the connecting plate is connected to the end of the second output shaft, and the second output shaft passes through the barrel lid, so that the connecting plate is arranged parallel to the bottom of the barrel lid; the float plate is vertically connected to the bottom of the connecting plate through a connecting rod that penetrates the connecting plate, and a spring is sleeved on the connecting rod, so that the spring is clamped between the float plate and the connecting plate.

[0008] Preferably, the number of connecting rods is four, and the four connecting rods are symmetrically arranged around the center of the float.

[0009] Preferably, a pressure sensor is provided on the float plate.

[0010] Preferably, the connecting plate and the float plate are of equal size, and the connecting plate and the float plate are circular plates smaller than the area of ​​the bucket lid.

[0011] Preferably, the outer periphery of the bucket lid is provided with an elastic washer, and the connecting plate is provided with a through hole.

[0012] Preferably, the top end of the connecting rod extends outward, and the top end is larger than the size of the through hole through the connecting plate.

[0013] Preferably, the mounting base is provided with a lifting slide rail, a drive motor for driving the lifting slide rail, and a lifting platform connected to the lifting slide rail, and the forming barrel is placed on the lifting platform.

[0014] The technical effects achieved by this utility model include:

[0015] Based on the above-mentioned foam forming equipment, the float plate can float on top of the material in the forming barrel and press the material under the elastic action of the spring between it and the connecting plate. The second lifting cylinder can drive the connecting plate through the second output shaft, thereby adjusting the overall height of the connecting plate and the float plate, ensuring that the float plate is located at the top of the material and can press the material by compressing the spring. This allows the top of the material to remain flat after forming, reducing the amount of leftover material after subsequent cutting by the foam cutting equipment, saving costs, eliminating the need for secondary recycling of the leftover material after forming and cutting, saving processes, and improving work efficiency.

[0016] This foam forming equipment has a simple structure and low overall cost, making it suitable for many small foam processing enterprises. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the foam forming equipment provided in this embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the mounting base and its underlying structure in the foam forming equipment.

[0019] Figure 3 This is a side view of the bucket lid and float plate in the foam forming equipment.

[0020] The reference numerals in the above figures are as follows:

[0021] Mounting base 1, lifting slide rail 11, drive motor 12, lifting platform 13;

[0022] Molding bucket 2;

[0023] Fixed frame 3, first lifting cylinder 31, second lifting cylinder 32;

[0024] Bucket lid 4, elastic washer 41;

[0025] Connecting plate 5;

[0026] Float 6, connecting rod 61, top rod head 611, spring 62, pressure sensor 63. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0028] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related are omitted.

[0029] like Figure 1 and Figure 2 As shown in the figure, this utility model embodiment provides a foam forming device, which includes a mounting base 1, a forming barrel 2, a fixing frame 3, a barrel cover 4, a connecting plate 5, and a floating plate 6.

[0030] The molding barrel 2 is placed inside the mounting base 1; the fixing frame 3 is fixedly connected to the top of the mounting base 1, and a first lifting cylinder 31 and a second lifting cylinder 32 are installed inside the fixing frame 3. The first lifting cylinder 31 is connected to a first output shaft facing downward toward the molding barrel 1, and the second lifting cylinder 32 is connected to a second output shaft facing downward; the barrel cover 4 is connected to the end of the first output shaft and is used to cover the molding barrel 2; the connecting plate 5 is connected to the end of the second output shaft, and the second output shaft passes through the barrel cover 4, so that the connecting plate 5 is arranged parallel to the bottom of the barrel cover 4; the float 6 is movably connected to the bottom of the connecting plate 5 through the connecting rod 61 that penetrates the connecting plate 5, and a spring 62 is sleeved on the connecting rod 61, so that the spring 62 is clamped between the float 6 and the connecting plate 5.

[0031] When using the above-mentioned foam forming equipment, the first output shaft of the first lifting cylinder 31 drives the barrel cover 4 to move upward, and the second output shaft of the second lifting cylinder 32 drives the connecting plate 5 and the float 6 to move upward, making room for the opening of the forming barrel 2. The foam material to be formed, which has been fully mixed with the adhesive, is then put into the forming barrel 2. Then, the second lifting cylinder 32 drives the connecting plate 5 to move downward through the second output shaft, thereby adjusting the overall height of the connecting plate 5 and the float 6 so that the float 6 contacts the top of the material. Then, the first output shaft of the first lifting cylinder 31 drives the barrel cover 4 to move downward to seal the opening of the forming barrel 2 and wait for forming. Since the float 6 remains floating on the top of the material and can be pressed down by the elastic reaction of the spring 62, the top of the material can remain flat after forming, reducing the excess material after subsequent cutting by the foam cutting equipment and saving costs.

[0032] After the foam is formed, the first output shaft of the first lifting cylinder 31 drives the barrel cover 4 to move upward again, and the second output shaft of the second lifting cylinder 32 drives the connecting plate 5 and the floating plate 6 to move upward, so as to expose the barrel opening of the forming barrel 2, and the formed foam in the forming barrel 2 can be demolded and discharged.

[0033] Combination Figure 2 and Figure 3 As shown, in this embodiment, there are four connecting rods 61. The four connecting rods 61 are symmetrically arranged around the center of the float 6. The arrangement of the four connecting rods 61 enables the float 6 to maintain balance on the horizontal plane and obtain sufficient support from the springs 62. Selecting an appropriate number of connecting rods 61 and their springs 62 helps to simplify the structure of the foam forming equipment.

[0034] Furthermore, a pressure sensor 63 is provided on the float plate 6. The operator can more accurately determine the current height position of the float plate 6 based on the reading of the pressure sensor 63, so that the spring 62 is compressed and the float plate 6 floats stably on the top of the material, ensuring that the top of the material is pressed tightly by the float plate 6.

[0035] To prevent the float plate 6 and the connecting plate 5 from blocking the airflow inside the forming barrel 2, the connecting plate 5 and the float plate 6 are of equal size, and the connecting plate 5 and the float plate 6 are circular plates with an area smaller than that of the barrel cover 4.

[0036] Before the foam forming equipment is put into operation, the barrel cover 4 needs to be pressed against the top feed port of the forming barrel 2 under the drive of the first lifting cylinder 31. An elastic washer 41 is provided on the outer periphery of the barrel cover 4, and a perforation is provided on the connecting plate 5 so that airflow can pass through the perforation.

[0037] As another embodiment of the spring 62, one end of the spring 62 can be connected to the bottom surface of the connecting plate 5 and the other end of the spring 62 can be connected to the top surface of the float 6. The connecting rod 61 plays the role of restricting the vertical movement of the float 6. Specifically, the top end 611 of the connecting rod 61 extends outward and the top end 611 is larger than the size of the through hole through the connecting plate 5. When the connecting rod 61 moves down to the bottom, the top end 611 abuts against the top surface of the float 6, preventing the connecting rod 61 from coming off the connecting plate 5.

[0038] The mounting base 1 is provided with a lifting slide rail 11, a drive motor 12 that drives the lifting slide rail 11, and a lifting platform 13 connected to the lifting slide rail 11. The forming barrel 2 is placed on the lifting platform 13, and the lifting platform 13 can drive the forming barrel 2 to move up and down, so that the forming barrel 2 and the material can be moved from the mounting base 1 to the position of the barrel cover 4 by a transport vehicle.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A foam forming equipment, characterized in that, include: Mounting base (1); A molding barrel (2) is placed inside the mounting base (1); A fixed frame (3) is fixedly connected to the top of the mounting base (1). A first lifting cylinder (31) and a second lifting cylinder (32) are installed inside the fixed frame (3). The first lifting cylinder (31) is connected to the first output shaft facing downward toward the forming barrel (2), and the second lifting cylinder (32) is connected to the second output shaft facing downward. A bucket lid (4) is connected to the end of the first output shaft and is used to seal the molded bucket (2); A connecting plate (5) is connected to the end of a second output shaft, which passes through a bucket lid (4), so that the connecting plate (5) is arranged parallel to the bottom of the bucket lid (4). A float (6) is connected to the bottom of the connecting plate (5) in a lifting manner via a connecting rod (61) that penetrates the connecting plate (5). A spring (62) is sleeved on the connecting rod (61) so that the spring (62) is sandwiched between the float (6) and the connecting plate (5).

2. The foam forming equipment according to claim 1, characterized in that, The number of connecting rods (61) is four, and the four connecting rods (61) are symmetrically arranged around the center of the float (6).

3. The foam forming equipment according to claim 1, characterized in that, A pressure sensor (63) is installed on the float (6).

4. The foam forming equipment according to claim 1, characterized in that, The connecting plate (5) and the float plate (6) are of equal size, and the connecting plate (5) and the float plate (6) are circular plates with an area smaller than that of the bucket lid (4).

5. The foam forming equipment according to claim 1, characterized in that, An elastic washer (41) is provided on the outer periphery of the bucket lid (4), and a through hole is provided on the connecting plate (5).

6. The foam forming equipment according to claim 1, characterized in that, The top end (611) of the connecting rod (61) extends outward, and the top end (611) is larger than the size of the through hole through the connecting plate (5) of the connecting rod.

7. The foam forming equipment according to claim 1, characterized in that, The mounting base (1) is provided with a lifting slide rail (11), a drive motor (12) for driving the lifting slide rail (11), and a lifting platform (13) connected to the lifting slide rail (11). The forming barrel (2) is placed on the lifting platform (13).