Release agent application system

Abstract

According to the release agent applying system provided by the utility model, the release agent is pushed into the internal mold chamber of the mold with the temperature higher than the room temperature by taking gas as a propellant, so that the release agent is gasified under the action of heat energy of the mold, and a release component in the release agent is attached to the chamber wall of the mold chamber to form a release layer; therefore, the problem existing in traditional manual spraying is solved, and especially the uniformity of the coating is improved.

Description

Technical Field

[0001] The utility model relates to molding processing technology, in particular to a release agent application system. Background Art

[0002] During the molding process, a release agent is usually applied to the mold surface to prevent adhesion between the product and the mold, so as to help the product in the mold to be more easily removed from the mold and ensure that both the product surface and the mold are intact. There are many types of release agents, such as water-based release agents or oil-based release agents.

[0003] However, traditionally, the release agent is applied manually by spraying, which may cause the following problems:

[0004] 1. Uneven coating: The quality of manual spraying technology depends on the experience of the operator. For example, the concentration of the release agent, the viscosity of the release agent is too high or too low, the angle of the spray gun and the distance between the spray gun and the mold surface, the speed of the spray gun, the pressure adjustment of the spray gun, etc., may lead to uneven coating of the release agent, that is, the coating in some areas is too thick or too thin, thus affecting the demolding effect of the product in production from the mold.

[0005] 2. Production costs and health risks: During the spraying process, operators need to rely on their vision and experience to adjust the details of the current application. However, any carelessness or distraction may lead to overspraying, which will not only cause waste of release agent, increase production costs and reduce efficiency, but also excessive release agent may spread into the surrounding environment. The release agent may contain chemicals that are harmful to the environment or health, leading to concerns about health risks.

[0006] Therefore, although manual spraying of release agents is a common operation method, it has some obvious problems, including uneven coating, waste of costs, and environmental and health risks. Therefore, relevant practitioners are still waiting to find alternative methods to improve the above problems. Utility Model Content

[0007] The main purpose of the utility model is to provide a release agent application system, which improves the problems existing in traditional manual spraying, especially the aspect of coating uniformity.

[0008] Therefore, in order to achieve the above-mentioned purpose, the release agent application system provided by the utility model includes a release agent source, a conveying part and a driving part, wherein the release agent source provides a release agent; the conveying part is a bridge between the release agent source and a mold, and the release agent source is connected to a mold chamber inside the mold through the conveying part; the driving part is connected to the conveying part to provide a gas propellant to push the release agent into the mold chamber, so that the release agent is vaporized by the heat energy of the mold, so that the release component in the release agent adheres to the wall of the mold chamber to form a release layer.

[0009] In one embodiment, the release agent application system is coupled to a gas channel on the mold, and the release agent is injected into the inner cavity of the mold through the gas channel.

[0010] In one embodiment, the release agent application system further includes a metering unit connected to the conveying unit for measuring and controlling a predetermined volume of the release agent injected into the mold chamber; and a control unit for controlling the operation of the metering unit and the driving unit, respectively.

[0011] In order to ensure the quality, integrity and production efficiency of the product, after the release layer is formed, the solvent components of the release agent and the propellant remaining in the mold chamber are discharged out of the mold to avoid obstruction or contamination by residues when the raw materials are filled into the mold.

[0012] Specifically, the mold is placed in an independent space, the mold chamber is connected to the independent space, and the gas in the independent space is evacuated to form a vacuum, thereby discharging the residual solvent component and the propellant.

[0013] Furthermore, the residual solvent component and the propellant are discharged outwardly through a channel formed by opening the mold to connect the mold chamber with the independent space.

[0014] On the other hand, the residual solvent component and the propellant are discharged to the outside through a gas channel preset in the mold and connected to the mold chamber.

[0015] In order to achieve the best coating effect with a small amount of release agent, the mold is in a closed state when the release agent is pushed into the mold chamber by the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a manufacturing flow chart of the first embodiment of the utility model.

[0017] Figure 2 It is a system block diagram of the release agent application system in the first embodiment of the present invention.

[0018] Figure 3 It is a manufacturing flow chart of the third embodiment of the present utility model. DETAILED DESCRIPTION

[0019] A preferred embodiment of the present invention is now further described with reference to the accompanying drawings.

[0020] First, if Figure 1 As shown, the "mold 10" described in the present invention is briefly illustrated, which includes a mold body 11, a mold chamber 12, a gas channel 13 and an injection channel 14, wherein the mold body 11 has a first mold part 111 and a second mold part 112. The mold chamber 12 is located between the first mold part 111 and the second mold part 112. The gas channel 13 is provided on the mold body 11 and connects the mold chamber 12 with the outside of the mold body 11. The injection channel 14 is provided on the first mold part 111 and connects with the mold chamber 12. However, such an example is only for illustrative purposes and is not intended to limit other embodiments of the mold 10.

[0021] Next, continue to refer to Figure 1 and Figure 2 The release agent application system disclosed in the first embodiment of the present invention is connected to the gas channel 13 on the mold 10, and a release agent is injected into the internal mold chamber 12 of the mold 10 through the gas channel 13.

[0022] Specifically, the release agent supply unit 20 includes a release agent source 21 , a conveying unit 22 , a driving unit 23 , a measuring unit 24 , and a control unit 25 .

[0023] The release agent source 21 has a first container (not shown) for storing the release agent. The release agent is classified into water-based release agent and oil-based release agent based on different solvents (i.e., water or organic solvent), and the release agent is diluted to any desired concentration, which will be easily understood by those skilled in the art, so it will not be described in detail.

[0024] The conveying portion 22 has a pipeline and a flow control element (not shown), wherein the pipeline is bridged between the release agent source 21 and the gas channel 13 of the mold 10. Specifically, one end of the pipeline is normally connected to the release agent source 21, while the other end of the pipeline is selectively connected to the gas channel 13, and the portion where the pipeline is connected to the gas channel 13 is tightly joined to prevent the release agent from leaking out.

[0025] The flow control element is a check valve, which is disposed on the pipeline near the mold 10 to prevent the release agent from flowing back into the pipeline from the mold chamber 12. In other possible implementations, the flow control element can also be a solenoid valve, which is controlled by the control unit 25 to open and close.

[0026] The metering section 24 has a second container (not shown) and a power source (not shown), and has a metering space of a preset volume. The second container is arranged on the pipeline to be filled with the release agent from the release agent source 21, so as to measure and control the predetermined volume of the release agent injected into the mold chamber 12. The power source is a pump, which provides a pressure difference to allow the release agent to enter the second container from the release agent source 21. The measured predetermined volume is related to the surface area of ​​the wall of the mold chamber 12. In other possible implementations, the metering section 24 may also include an adjusting component, such as a piston, a screw, etc., to change the volume of the metering space to cope with molds 10 of different specifications or different mold chamber 12 shapes.

[0027] The driving unit 23 is an air compressor connected to the conveying unit 22 and can compress air into high-pressure gas as a propellant to drive the release agent to be conveyed into the mold chamber 12 of the mold 10 .

[0028] The control unit 25 has a central processing unit to execute a preset instruction to control the operation of the metering unit 24 and the driving unit 23 respectively.

[0029] Through the above structure description, please refer to Figure 1 As shown, the specific steps of the release agent application system of the utility model are as follows:

[0030] Step 301: Figure 1 In (A), the mold 10 is in a mold-closing state, and the pipeline is connected to the gas channel 13. The mold 10 is preheated to a predetermined temperature higher than room temperature, the predetermined temperature is between 100°C and 250°C, preferably 170°C.

[0031] Step 302: Figure 1 In (B), the release agent in the metering space is pushed into the mold chamber 12 inside the mold 10 through the pipeline and the gas channel 13 using gas as a propellant, and the release agent is vaporized by the heat energy of the mold 10, so that the release component in the release agent adheres to the wall of the mold chamber 12 to form a release layer 30. The thickness of the release layer 30 is often adjusted depending on the raw material 40 of the product, the process requirements, and the required surface characteristics, and the thickness of the release layer 30 is usually between 10μm and 100μm.

[0032] Step 303: Figure 1 In (C), after the pipeline is separated from the gas channel 13, the solvent component of the release agent and the propellant remaining in the mold chamber 12 are discharged to the outside through the gas channel 13.

[0033] Step 304: Figure 1In (D), an injection process is performed to inject a raw material 40 into the mold chamber 12 through the injection channel 14 .

[0034] Accordingly, the release agent application system provided by the present invention can inject a fixed amount of release agent into the mold chamber 12 and evenly distribute a release layer 30 on the wall of the mold chamber 12, thereby improving the problems existing in traditional manual spraying.

[0035] Furthermore, the main difference between the second embodiment of the present invention and the first embodiment is that the metering unit 24 is omitted, and only the conveying unit 22 is used to inject the release agent into the mold chamber 12 in batches.

[0036] In addition, if Figure 3 FIG. 2 is a third embodiment of the present invention, which has two main differences from the first embodiment. First, the mold 10 is located in an independent space 50 defined by a vacuum cover (not shown), and when the mold 10 is in a mold-closing state, the mold chamber 12 is not connected to the independent space 50.

[0037] The second one is that in step 303, Figure 3 (B) to Figure 3 As shown in FIG. 5C , the mold 10 is changed from the mold closing state to the mold opening state, and the mold chamber 12 is connected to the independent space 50. Then, a vacuum device (not shown) connected to the vacuum cover is used to evacuate the gas in the mold chamber 12 and the independent space 50 that have been isolated from the atmosphere, so that the mold chamber 12 and the independent space 50 become vacuum, and at the same time, the residual solvent component and the propellant are discharged.

[0038] In addition, the aforementioned vacuum operation can also be performed before the mold 10 is opened, which can also achieve the effect of extracting the residual solvent component and the propellant.

[0039] Finally, if Figure 3 (D) to Figure 3 As shown in (E), the mold 10 returns to the mold closing state to perform the injection process.

[0040] The above are the preferred embodiments of the utility model and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the utility model, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the utility model shall fall within the protection scope of the utility model.

Claims

1. A release agent application system, characterized in that: include: A release agent source provides a release agent; A conveying portion is provided as a bridge between the release agent source and a mold, and the release agent source is connected to a mold chamber inside the mold through the conveying portion; A driving part is connected to the conveying part to provide a gas propellant to push the release agent into the mold chamber so that the release agent is vaporized by the heat energy of the mold, thereby making the release component in the release agent adhere to the wall of the mold chamber to form a release layer.

2. The release agent application system according to claim 1, characterized in that: The conveying part is connected with a gas channel preset in the mold and communicated with the mold chamber, and the release agent is injected into the mold chamber through the gas channel.

3. The release agent application system according to claim 1 or 2, characterized in that: It also includes: a metering portion connected to the conveying portion, for measuring and controlling a predetermined volume of the release agent injected into the mold chamber; A control unit controls the operation of the metering unit and the driving unit respectively.

4. The release agent application system according to claim 1, characterized in that: After the release layer is formed, the solvent component of the release agent and the propellant remaining in the mold chamber are discharged out of the mold.

5. The release agent application system according to claim 4, characterized in that: The method comprises placing the mold in an independent space, connecting the mold chamber with the independent space, and then extracting the gas in the independent space to form a vacuum, thereby discharging the residual solvent component and the propellant.

6. The release agent application system according to claim 5, characterized in that: When the release agent is pushed into the mold chamber by the gas, the mold is in a mold-closing state.

7. The release agent application system according to claim 5 or 6, characterized in that: The residual solvent component and the propellant are discharged outwardly through a channel formed by opening the mold to connect the mold chamber with the independent space.

8. The release agent application system according to claim 4, characterized in that: The residual solvent component and the propellant are discharged outwardly through a gas passage preset in the mold and connected to the mold chamber.

Images