Special-shaped polyurethane foam foaming mold

Abstract

The utility model provides a special-shaped polyurethane foam foaming mould, which relates to the technical field of polyurethane foam, and comprises a lower mould, a mounting block is arranged on one side of the lower mould, a connecting component is arranged in the mounting block, a rotating shaft is arranged at the top of the connecting component, an upper mould is arranged on one side of the rotating shaft, an air cylinder is arranged in the lower mould, and the air cylinder is arranged in the lower mould. An ejection assembly is arranged on the top of the air cylinder. The device solves the problems that after an existing common special-shaped polyurethane foam foaming mold is formed, the foaming mold is possibly influenced by directly opening an upper mold, and the efficiency of manually taking out the mold is low.

Description

Technical Field

[0001] This utility model belongs to the field of polyurethane foam technology, and more specifically, it relates to a mold for foaming irregularly shaped polyurethane foam. Background Technology

[0002] Polyurethane foam is a foam-like material made of polyurethane (PU), characterized by its lightweight and porous structure. It is widely used in various industries, such as furniture, automotive, construction, packaging, electronics, and medical fields. Polyurethane foam can be manufactured into products with different densities, hardness, and elasticity to meet specific application requirements.

[0003] Based on the above, the inventors have discovered the following problems: In ordinary irregular polyurethane foam foaming molds, after molding, the upper and lower molds are hinged. Directly opening the mold may affect the mold after molding, and the staff has to manually remove the mold after opening, which is inefficient.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a special-shaped polyurethane foam foaming mold in order to achieve a more practical purpose. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a special-shaped polyurethane foam foaming mold, which solves the problem that in current ordinary special-shaped polyurethane foam foaming molds, opening the upper mold directly after molding may affect the foaming mold, and manually removing the mold is inefficient.

[0006] The purpose and effect of this utility model's irregular polyurethane foam foaming mold are achieved by the following specific technical means:

[0007] A mold for expanding polyurethane foam includes a lower mold, a mounting block on one side of the lower mold, a connecting component inside the mounting block, a rotating shaft on the top of the connecting component, an upper mold on one side of the rotating shaft, and a cylinder inside the lower mold, with an ejection component on the top of the cylinder.

[0008] Furthermore, the connecting assembly includes a chamber formed inside the mounting block, a limiting plate is provided inside the chamber, a movable plate is provided on the top of the limiting plate, and the top of the movable plate is connected to the rotating shaft.

[0009] Furthermore, the dimensions of the movable plate are matched with the internal dimensions of the cavity.

[0010] Furthermore, the ejection assembly includes a movable plate connected to a cylinder, a horizontal plate above the movable plate, a plurality of through holes on the surface of the horizontal plate, a sleeve inside the through holes, the other end of the sleeve being connected to the top of the movable plate, and a spring 1 inside the sleeve, a limiting plate 2 at the top of the spring 1, a push rod at the top of the limiting plate 2, and a push block at the top of the push rod.

[0011] Furthermore, the lower mold has a groove inside, and a special-shaped mold body is provided in the groove, with the bottom and top block of the special-shaped mold body fitting together.

[0012] Furthermore, the lower mold is provided with a limiting groove, and the two ends of the movable plate are installed in the limiting groove.

[0013] Furthermore, a second spring is provided on the top of the movable plate, and the other end of the second spring is attached to the horizontal plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By coordinating the mounting block, limit plate, movable plate, rotating shaft and upper mold, the movable plate is first moved upward from the cavity, and then the upper mold is rotated to facilitate demolding and avoid the upper mold affecting the irregular mold body during demolding, thus improving the quality of the irregular mold body.

[0016] 2. Through the cooperation of cylinder, moving plate, horizontal plate, through hole, sleeve, spring one, limit plate two, spring two, ejector rod and ejector block, the cylinder is started, which drives the moving plate to move along the limit groove, so that the moving plate moves upward, which drives the sleeve to move. The ejector block is made of rubber, which can fit more closely to the bottom of the irregular mold body. With the help of spring one and spring two, the upward force of the cylinder is buffered twice, so that the ejector block gently pushes the irregular mold body upward, improving demolding efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a non-standard polyurethane foam foaming mold according to this utility model.

[0018] Figure 2 This utility model relates to a special-shaped polyurethane foam foaming mold. Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 3 This is a cross-sectional schematic diagram of a connecting component for a non-standard polyurethane foam foaming mold according to this utility model.

[0020] Figure 4 This is a side view of a non-standard polyurethane foam foaming mold according to the present invention.

[0021] Figure 5This utility model relates to a special-shaped polyurethane foam foaming mold. Figure 4 Enlarged diagram of point B in the middle.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Lower mold; 2. Mounting block; 3. Rotating shaft; 4. Upper mold; 5. Cylinder; 6. Limiting plate one; 7. Movable plate; 8. Moving plate; 9. Horizontal plate; 10. Through hole; 11. Sleeve; 12. Spring one; 13. Limiting plate two; 14. Ejector rod; 15. Ejector block; 16. Irregular mold body; 17. Limiting groove; 18. Spring two. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] This utility model provides a mold for making irregular polyurethane foam, including a lower mold 1, a mounting block 2 on one side of the lower mold 1, a connecting component inside the mounting block 2, a rotating shaft 3 on the top of the connecting component, an upper mold 4 on one side of the rotating shaft 3, and a cylinder 5 inside the lower mold 1, with an ejection component on the top of the cylinder 5.

[0028] The connecting assembly includes a chamber inside the mounting block 2, a limiting plate 6 is provided inside the chamber, a movable plate 7 is provided on the top of the limiting plate 6, and the top of the movable plate 7 is connected to the rotating shaft 3.

[0029] The size of the movable plate 7 matches the internal size of the cavity. Through the cooperation between the mounting block 2, the limiting plate 6, the movable plate 7, the rotating shaft 3 and the upper mold 4, the movable plate 7 is first moved upward from the cavity, and then the upper mold 4 is rotated to facilitate demolding and avoid the upper mold 4 affecting the irregular mold body 16 during demolding, thereby improving the quality of the irregular mold body 16.

[0030] The ejection assembly includes a movable plate 8 connected to a cylinder 5. A horizontal plate 9 is provided above the movable plate 8. The surface of the horizontal plate 9 is provided with several through holes 10. A sleeve 11 is provided in the through holes 10. The other end of the sleeve 11 is connected to the top of the movable plate 8. A spring 12 is provided in the sleeve 11. A limiting plate 13 is provided on the top of the spring 12. A push rod 14 is provided on the top of the limiting plate 13. A push block 15 is provided on the top of the push rod 14.

[0031] The lower mold 1 has a groove inside, and a special-shaped mold body 16 is provided in the groove. The bottom of the special-shaped mold body 16 is in contact with the top block 15.

[0032] The lower mold 1 is provided with a limiting groove 17 inside, and the two ends of the moving plate 8 are installed in the limiting groove 17.

[0033] The top of the movable plate 8 is provided with a second spring 18, the other end of which is in contact with the horizontal plate 9. Through the cooperation of the cylinder 5, the movable plate 8, the horizontal plate 9, the through hole 10, the sleeve 11, the first spring 12, the second limiting plate 13, the second spring 18, the push rod 14 and the push block 15, the cylinder 5 is activated, which drives the movable plate 8 to move along the limiting groove 17, so that the movable plate 8 moves upward, driving the sleeve 11 to move. The push block 15 is made of rubber, which can fit more closely to the bottom of the irregular mold body 16. With the help of the first spring 12 and the second spring 18, the upward force of the cylinder 5 is buffered for a second time, so that the push block 15 gently pushes the irregular mold body 16 upward, improving the demolding efficiency.

[0034] The specific usage and function of this embodiment are as follows:

[0035] First, check the integrity of the device. Then, put the device into actual use. After foam is applied to the lower mold 1, close the upper mold 4 to perform the normal foaming process. After foaming is completed, through the cooperation between the mounting block 2, the limiting plate 6, the movable plate 7, the rotating shaft 3, and the upper mold 4, the movable plate 7 is moved upward from the cavity. Then, the upper mold 4 is rotated to facilitate demolding and prevent the upper mold 4 from affecting the irregular mold body 16 during demolding, thus improving the quality of the irregular mold body 16. Then, through the cylinder 5 and the moving plate 8... The cooperation of the horizontal plate 9, through hole 10, sleeve 11, spring 12, limit plate 13, spring 18, ejector rod 14 and ejector block 15 activates the cylinder 5, which drives the moving plate 8 to move along the limit groove 17, causing the moving plate 8 to move upward, which in turn drives the sleeve 11 to move. The ejector block 15 is made of rubber, which can better fit the bottom of the irregular mold body 16. With the help of spring 12 and spring 18, the upward force of the cylinder 5 is buffered for a second time, so that the ejector block 15 gently pushes the irregular mold body 16 upward, improving the demolding efficiency.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A mold for expanding irregularly shaped polyurethane foam, comprising a lower mold (1), characterized in that: The lower mold (1) has an installation block (2) on one side, a connecting component inside the installation block (2), a rotating shaft (3) on the top of the connecting component, an upper mold (4) on one side of the rotating shaft (3), and a cylinder (5) inside the lower mold (1), with an ejection component on the top of the cylinder (5).

2. The irregular polyurethane foam foaming mold as described in claim 1, characterized in that: The connecting assembly includes a chamber opened inside the mounting block (2), a limiting plate (6) is provided in the chamber, and a movable plate (7) is provided on the top of the limiting plate (6), and the top of the movable plate (7) is connected to the rotating shaft (3).

3. The irregular polyurethane foam foaming mold as described in claim 2, characterized in that: The dimensions of the movable plate (7) are matched with the internal dimensions of the cavity.

4. The irregular polyurethane foam foaming mold as described in claim 3, characterized in that: The ejection assembly includes a movable plate (8) connected to a cylinder (5). A horizontal plate (9) is provided above the movable plate (8). A plurality of through holes (10) are provided on the surface of the horizontal plate (9). A sleeve (11) is provided in the through holes (10). The other end of the sleeve (11) is connected to the top of the movable plate (8). A spring (12) is provided in the sleeve (11). A limiting plate (13) is provided at the top of the spring (12). A push rod (14) is provided at the top of the limiting plate (13). A push block (15) is provided at the top of the push rod (14).

5. The irregular polyurethane foam foaming mold as described in claim 4, characterized in that: The lower mold (1) has a groove inside, and a special mold body (16) is provided in the groove, and the bottom of the special mold body (16) and the top block (15) are in contact.

6. The irregular polyurethane foam foaming mold as described in claim 5, characterized in that: The lower mold (1) is provided with a limiting groove (17) inside, and the two ends of the moving plate (8) are installed in the limiting groove (17).

7. The irregular polyurethane foam foaming mold as described in claim 6, characterized in that: The top of the movable plate (8) is provided with a second spring (18), and the other end of the second spring (18) is attached to the horizontal plate (9).

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