A mold release agent supply device

Abstract

A kind of release agent supply device, including storage tank body, cover is provided on the storage tank body, pneumatic motor is provided on the cover, rotating shaft is provided on the lower end of the pneumatic motor, stirring vane is provided on the rotating shaft, helical blade is provided on the rotating shaft, connecting block is provided on the both sides of the cover, supporting block is provided on the both sides of the storage tank body, cylinder is provided on the connecting block, mixing barrel is provided on the cover, material hole is provided on the mixing barrel;Release agent in storage tank body can be mixed in all directions by the rotation of stirring vane and helical blade driven by pneumatic motor and the up-and-down movement of mixing barrel driven by cylinder, effectively prevent release agent from liquid layering phenomenon, avoid raw material accumulation, ensure that release agent performance is stable, improve release effect;Change the unstable pressure caused by the gravity of release agent itself in the past, make the sprayed release agent more uniform, help to ensure product quality.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing, and in particular to a mold release agent supply device. Background Technology

[0002] Car seats and backrests are made of polyurethane. The foam production process involves mixing polyether, isocyanate, water, and additives, reacting the mixture, and then using a mold to inflate the foam into the desired shape. After being allowed to mature freely (typically 8-24 hours) until its hardness stabilizes, it is then sent to the assembly plant for encapsulation, ultimately forming the car seat. Polyurethane has excellent adhesion to other materials, a property that is disadvantageous in foam molding. In the production of molded polyurethane foam, cast polyurethane elastomers, and the rapidly developing reaction injection molding (RIM) products, release agents are necessary to quickly and smoothly remove the product from the mold. In the process following polyurethane foam mixing and casting, release agents are mainly used for demolding after casting, providing good release properties for most polyurethane moldings. Their function is to enable the polyurethane foam to be easily separated from the mold, allowing for quick and smooth removal of the foamed product.

[0003] However, when the release agent is left for a long time, liquid separation will occur in the release agent in the supply tank, which will reduce the effect of the release agent and affect the demolding effect of the foam and the mold. At the same time, since the existing release agent is used by the pressure provided by the pressure of the release agent itself, the pressure will be unstable and cannot be adjusted after liquid separation, resulting in uneven spraying of the release agent and failing to guarantee product quality. To solve the above problems, a release agent supply device is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problems of liquid stratification in release agents, which leads to reduced release agent effectiveness and uneven spraying of release agent.

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

[0006] A mold release agent feeding device includes a storage tank, a cover on the storage tank, a pneumatic motor on the cover, a rotating shaft at the lower end of the pneumatic motor, stirring blades on the rotating shaft, a spiral blade on the rotating shaft, connecting blocks on both sides of the cover, support blocks on both sides of the storage tank, cylinders on the connecting blocks, a mixing cylinder on the cover, and a material passage hole on the mixing cylinder.

[0007] Furthermore, support blocks are fixedly provided on both sides of the storage tank, and the connecting block is provided correspondingly to the support blocks. A cylinder is provided at the upper end of the connecting block, and the lower end of the cylinder passes through the connecting block and abuts against the support block.

[0008] Furthermore, a mixing cylinder is fixedly installed on the lower surface of the cover, the output end of the pneumatic motor is connected to the rotating shaft, a number of stirring blades are provided in the middle of the rotating shaft, the stirring blades are located inside the mixing cylinder, the rotating shaft extends out of the mixing cylinder, and a spiral blade is provided at the lower end of the rotating shaft.

[0009] Furthermore, the surface of the mixing cylinder has several material passage holes, and the cylinder wall between the material passage holes at the bottom of the mixing cylinder forms a mixing section for mixing materials;

[0010] Furthermore, the cover has a feed inlet, the lower surface of the storage tank is arc-shaped, the bottom of the storage tank is provided with a discharge outlet, the spiral blade is located at the discharge outlet, a control valve is provided on the discharge outlet, the control valve is located below the spiral blade, and a booster pump is provided on the discharge outlet to control the pressure of the release agent at the discharge outlet.

[0011] The beneficial effects of this utility model are:

[0012] By using a pneumatic motor to drive the stirring blades and spiral blades to rotate, and a cylinder to move the mixing cylinder up and down, the release agent in the storage tank can be stirred and mixed in all directions, effectively preventing liquid stratification of the release agent, avoiding raw material accumulation, ensuring the stability of the release agent's performance, and improving the release effect.

[0013] The booster pump installed at the discharge port can precisely control the pressure of the release agent in the discharge pipe according to actual needs, which changes the previous situation of unstable pressure caused by relying on the release agent's own gravity for pressure supply, making the sprayed release agent more uniform and helping to ensure product quality.

[0014] The mixing cylinder works in conjunction with the stirring blades and the spiral blades to improve mixing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a mold release agent supply device according to a utility model.

[0016] Figure 2 This is a schematic diagram of the usage structure of a mold release agent supply device according to a utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a mold release agent supply device according to a utility model.

[0018] Figure 4 This is a partial structural schematic diagram of a mold release agent supply device according to a utility model.

[0019] In the diagram: 1. Storage tank; 2. Cover; 3. Pneumatic motor; 4. Rotating shaft; 5. Stirring blades; 6. Cylinder; 7. Support block; 8. Connecting block; 9. Mixing cylinder; 10. Material passage; 11. Inlet; 12. Outlet; 13. Booster pump; 14. Spiral blades; 15. Control valve. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1

[0024] This utility model provides a mold release agent feeding device, including a storage tank 1, a cover 2 on the storage tank 1, a pneumatic motor 3 on the cover 2, a rotating shaft 4 at the lower end of the pneumatic motor 3, a stirring blade 5 on the rotating shaft 4, a spiral blade 14 on the rotating shaft 4, connecting blocks 8 on both sides of the cover 2, support blocks 7 on both sides of the storage tank 1, a cylinder 6 on the connecting block 8, a mixing cylinder 9 on the cover 2, and a material passage hole 10 on the mixing cylinder 9.

[0025] Furthermore, support blocks 7 are fixedly installed on both sides of the storage tank 1, and connecting blocks 8 are correspondingly installed with support blocks 7. A cylinder 6 is installed at the upper end of the connecting block 8, and the lower end of the cylinder 6 passes through the connecting block 8 and abuts against the support block 7.

[0026] Furthermore, a mixing cylinder 9 is fixedly installed on the lower surface of the cover 2, the output end of the pneumatic motor 3 is connected to the rotating shaft 4, a number of stirring blades 5 are provided in the middle of the rotating shaft 4, the stirring blades 5 are located inside the mixing cylinder 9, the rotating shaft 4 passes through the mixing cylinder 9, and a spiral blade 14 is provided at the lower end of the rotating shaft 4.

[0027] Furthermore, the surface of the mixing cylinder 9 has several material passage holes 10, and the barrel wall between the material passage holes 10 at the bottom of the mixing cylinder 9 forms a mixing section for mixing materials.

[0028] Furthermore, the cover 2 has a feed inlet 11, the lower surface of the storage tank 1 is arc-shaped, the storage tank 1 has a discharge port 12 at the bottom, the spiral blade 14 is located at the discharge port 12, the discharge port 12 is equipped with a control valve 15 located below the spiral blade 14, and the discharge port 12 is equipped with a booster pump 13 to control the pressure of the release agent at the discharge port 12.

[0029] Working principle:

[0030] During use, the release agent is drawn from the raw material barrel into the release agent storage tank 1 through the feed port 11. The storage tank 1 serves to store the release agent. When the release agent is stored for a long time, liquid stratification will occur in the release agent in the feed barrel. Heavier raw materials will accumulate at the discharge port 12 and the arc-shaped bottom of the storage tank 1. The control cylinder 6 shortens, driving the connecting block 8 and the cover 2 to move downward on the support block 7, thereby driving the mixing cylinder 9 to contact the release agent downward. During the descent, the stratified release agent in the storage tank 1 enters the mixing cylinder 9 through the feed hole 10, which has the effect of breaking down the wall and mixing the release agent. At the same time, the control pneumatic motor 3 drives the rotating shaft 4 and the stirring blades 5 to move inside the storage tank 1. The layered release agent is stirred to further achieve the mixing effect. The spiral blades 14 of the rotating shaft 4 extend into the discharge port 12. The spiral blades 14 carry the heavier raw material accumulated at the discharge port 12 into the storage tank 1, enhancing the mixing effect. The cylinder 6 is controlled to repeatedly extend and retract. The mixing section between the material passage holes 10 at the bottom of the mixing cylinder 9 allows the release agents of different layers to fully blend. After the release agent is evenly mixed, the control valve 15 is opened, and the booster pump 13 at the discharge port 12 is turned on. The pressure is adjusted according to the actual use requirements, and the release agent is delivered from the discharge port 12 to the circulation pipeline with stable pressure and flow rate, providing pressurized raw material to the release agent spray gun for the demolding process of polyurethane products.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold release agent feeding device, characterized in that, The system includes a storage tank (1), a cover (2) on the storage tank (1), a pneumatic motor (3) on the cover (2), a rotating shaft (4) at the lower end of the pneumatic motor (3), stirring blades (5) on the rotating shaft (4), a spiral blade (14) on the rotating shaft (4), connecting blocks (8) on both sides of the cover (2), support blocks (7) on both sides of the storage tank (1), a cylinder (6) on the connecting block (8), a mixing cylinder (9) on the cover (2), and a material passage hole (10) on the mixing cylinder (9).

2. The mold release agent feeding device according to claim 1, characterized in that, The storage tank (1) is fixedly provided with support blocks (7) on both sides. The connecting block (8) is provided in correspondence with the support block (7). The upper end of the connecting block (8) is provided with a cylinder (6). The lower end of the cylinder (6) passes through the connecting block (8) and abuts against the support block (7).

3. The mold release agent feeding device according to claim 2, characterized in that, A mixing cylinder (9) is fixedly installed on the lower surface of the cover (2). The output end of the pneumatic motor (3) is connected to the rotating shaft (4). Several sets of stirring blades (5) are provided in the middle of the rotating shaft (4). The stirring blades (5) are located inside the mixing cylinder (9). The rotating shaft (4) extends out of the mixing cylinder (9). A spiral blade (14) is provided at the lower end of the rotating shaft (4).

4. The mold release agent feeding device according to claim 3, characterized in that, The surface of the mixing cylinder (9) has several material passage holes (10), and the barrel wall between the material passage holes (10) at the bottom of the mixing cylinder (9) forms a mixing section for mixing materials.

5. A mold release agent feeding device according to claim 4, characterized in that, The cover (2) has a feed inlet (11), the lower surface of the storage tank (1) is arc-shaped, the storage tank (1) has a discharge port (12) at the bottom, the spiral blade (14) is located at the discharge port (12), the discharge port (12) is equipped with a control valve (15), the control valve (15) is located below the spiral blade (14), and the discharge port (12) is equipped with a booster pump (13) to control the pressure of the release agent at the discharge port (12).

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