Spray head device and release agent spraying system thereof

Abstract

The utility model discloses a spray head device and a release agent spraying system thereof. The spray head device comprises a spray nozzle, a mixing joint and an agent conveying valve body, the mixing joint comprises an air inlet end, an agent inlet end and a spraying end, the nozzle is connected to the spraying end, and an air inlet joint is connected to the air inlet end of the mixing joint; the agent conveying valve body is connected with an agent inlet connector and an agent outlet connector, and the agent inlet end of the mixing connector is connected with the agent conveying valve body through the agent outlet connector. The whole nozzle device is formed by combining the nozzle, the mixing connector and the agent conveying valve body, the agent conveying valve body is used for controlling on-off of the release agent in the nozzle, the mixing connector is used for mixing gas and the release agent, the nozzle is only responsible for spraying the mixed release agent, and the nozzle is only responsible for spraying out the mixed release agent. Therefore, when the nozzle is blocked, only the nozzle needs to be taken down and replaced, the cost is lower, and the ejection shape and area of the release agent can be adjusted by replacing different types of nozzles.

Description

Technical Field

[0001] The utility model relates to the field of spraying systems, in particular to a spray head device and a release agent spraying system thereof. Background Art

[0002] In the field of compression molding of various materials, there is a process of spraying release agent on the mold surface. The main function of this process is to make the demoulding operation easy and prevent damage to the product caused by forced removal. The isolation of the release agent depends on its surface properties. Its notable feature is that the critical surface tension is small and it is difficult to be wetted by liquid. Because of this, the demoulding effect can be achieved.

[0003] In the above process, it is indispensable to use a spraying system to realize the spraying of the release agent. There are many types of spraying systems for release agents on the market, but their main structures are a source for supplying release agent, a gas source for supplying gas, and a nozzle for mixing the release agent and gas and spraying them. The components of a system that can realize the spraying of release agent cannot escape the above three.

[0004] However, there is a problem with the spraying system of the release agent in the prior art, that is, after each use of the spraying system, there will inevitably be some release agent residue left at the nozzle, which will easily lead to the clogging of the nozzle over time. The existing nozzles on the market have a gas-liquid mixing part and a nozzle part for spraying, so when the nozzle is blocked, the entire nozzle must be replaced, which will lead to excessively high maintenance costs of the release agent. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art that the mold release agent spraying system needs to frequently replace the spray head and the replacement cost is relatively high, the utility model provides a spray head device and a mold release agent spraying system thereof.

[0006] The utility model solves the technical problem by providing a nozzle device comprising:

[0007] nozzle;

[0008] A mixing joint, comprising an air inlet end, a feed end and an ejection end, wherein the nozzle is connected to the ejection end, and the air inlet end of the mixing joint is connected to an air inlet joint;

[0009] The infusion valve body is connected with an inlet connector and an outlet connector, and the inlet end of the mixing connector is connected to the infusion valve body through the outlet connector.

[0010] Furthermore, the infusion valve body is an air-controlled valve, and an air-controlled connector is also connected to the infusion valve body.

[0011] Furthermore, the infusion valve body is a three-way air-controlled valve, and a cleaning connector is also connected to the infusion valve body.

[0012] The utility model also includes a release agent spraying system, which includes the spray head device described in any one of the above items;

[0013] Also included are:

[0014] A reagent supply component, comprising a reagent source for supplying a release agent and a reagent tank for storing the release agent, wherein the reagent source is in communication with the reagent tank for supplying the release agent;

[0015] A gas supply assembly, comprising a gas source for supplying gas;

[0016] The agent supply connection is formed between the agent tank and the nozzle through the first pipeline, and the agent delivery valve body is located on the first pipeline and is used to control the opening and closing of the first pipeline;

[0017] The gas source and the nozzle are connected to each other through a second pipeline to form a gas supply connection.

[0018] Furthermore, a third pipeline is included; the gas source and the delivery valve body are connected to each other through the third pipeline, so that the residual release agent in the delivery valve body is cleaned by the gas provided by the third pipeline;

[0019] The third pipeline is provided with a self-cleaning valve body, and the opening and closing of the third pipeline is controlled by opening and closing the self-cleaning valve body.

[0020] Furthermore, a fourth pipeline is included; the gas source and the delivery valve body are connected to each other through the fourth pipeline, so that the opening and closing of the delivery valve body are pneumatically controlled by the gas provided by the fourth pipeline;

[0021] The fourth pipeline is also provided with a control valve body, and the on-off of the fourth pipeline is controlled by opening and closing the control valve body.

[0022] Furthermore, a fifth pipeline is included; the gas source is connected to the pressurizing port of the filling tank through the fifth pipeline to form a gas supply connection;

[0023] The agent supply assembly also includes an agent circuit pressure regulating valve and a hydraulic switch, and the agent circuit pressure regulating valve and the hydraulic switch are both arranged on the fifth passage;

[0024] The opening and closing of the hydraulic switch is used to control the connection or interruption of the fifth pipeline, and the pressure of the gas input into the agent tank is controlled by the agent circuit pressure regulating valve.

[0025] Furthermore, the dosage assembly further comprises a filter and a dosage switch, and the filter and the dosage switch are both located on the passage between the dosage source and the dosage tank;

[0026] The opening and closing of the dosing switch is used to control the connection or interruption of the passage between the agent source and the agent filling tank, and the filter is used to filter the release agent input into the agent filling tank.

[0027] Furthermore, the gas supply component also includes an air circuit pressure regulating valve, which is arranged on all pipelines connected to the gas source, and the air circuit pressure regulating valve controls the air pressure input from the gas source to each pipeline.

[0028] Furthermore, a gas delivery valve body is provided on the second pipeline, and the on-off of the second pipeline is controlled by opening and closing the gas delivery valve body.

[0029] The spraying process and self-cleaning process of the utility model:

[0030] Before spraying, first turn on the dosing switch, so that the mold release agent at the source flows into the liquid tank after being filtered by the filter, and then turn off the dosing switch after the mold release agent in the liquid tank is added. Then turn on the hydraulic switch, and after adjusting the gas pressure provided by the gas source through the agent line pressure regulating valve, the gas is filled into the liquid tank through the fifth pipeline. The mold release agent in the liquid tank will flow toward the nozzle through the first pipeline under the action of the pressurized gas and be blocked at the agent delivery valve body;

[0031] During spraying, the control valve body and the gas delivery valve body are opened, the second pipeline and the fourth pipeline are connected, and the gas provided by the gas source is passed to the agent delivery valve body and the mixing joint. The agent delivery valve body will switch its state under the action of the gas to make the first pipeline pass through, and the release agent blocked at the agent delivery valve body can flow into the mixing joint and mix with the gas input into the mixing joint, and finally sprayed out through the nozzle;

[0032] After spraying is completed, first close the control valve body, so that the agent delivery valve body returns to its original state to block the first pipeline, ensuring that the release agent cannot reach the mixing joint, and then close the gas delivery valve body to interrupt the second pipeline, ensuring that the gas cannot reach the mixing joint;

[0033] During self-cleaning, the self-cleaning valve body is opened, and the gas provided by the gas source is input into the agent delivery valve body through the third pipeline, then enters the mixing joint from the agent delivery valve body, and finally sprayed out from the nozzle, thereby relying on the gas to discharge the residual release agent in the pipeline, agent delivery valve body, mixing joint and nozzle.

[0034] The beneficial effects of the utility model are:

[0035] 1. The entire nozzle device is composed of a nozzle, a mixing joint and a delivery valve body. The delivery valve body controls the on-off of the release agent in the nozzle, and the mixing joint completes the mixing of gas and release agent. The nozzle is only responsible for spraying the mixed release agent. Therefore, when the nozzle is blocked, you only need to remove the nozzle and replace it, which is more cost-effective. In addition, the shape and area of ​​the release agent spray can be adjusted by replacing different types of nozzles.

[0036] 2. A cleaning joint is provided on the delivery valve body. By connecting the cleaning joint with the air source, the nozzle device can add a self-cleaning function to cope with the use of certain release agents with high adhesion. If the self-cleaning function is not needed, the cleaning joint can be blocked;

[0037] 3. The infusion valve body is set as a gas-controlled valve, which uses gas to control its opening and closing, making the entire system easier to control and reducing some unnecessary operating steps;

[0038] 4. Provide a spraying system using a nozzle device, so that the nozzle device can be better integrated into the release agent spraying system;

[0039] 5. A third pipeline and a self-cleaning valve body are provided for self-cleaning in the spraying system, so that after each use of the system, the residual release agent in the pipeline, valve body and nozzle of the system can be discharged and cleaned to prevent the system from being blocked after long-term use, which can effectively reduce the use and maintenance costs of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of the nozzle device in the first embodiment of the utility model.

[0041] Figure 2 It is an exploded schematic diagram of the nozzle device in the first embodiment of the utility model.

[0042] Figure 3 It is a cross-sectional view of the nozzle in the first embodiment of the present utility model.

[0043] Figure 4 It is a structural schematic diagram of the release agent spraying system in the second embodiment of the present utility model.

[0044] Figure 5 It is a structural schematic diagram of the release agent spraying system in the third embodiment of the present utility model.

[0045] Numbers in the figure: 1, nozzle; 2, mixing joint; 3, air inlet section; 4, feed end; 5, discharge end; 6, air inlet joint; 7, delivery valve body; 8, feed joint; 9, discharge joint; 10, air control joint; 11, cleaning joint; 12, feed channel; 13, air inlet channel; 14, discharge channel; 15, connecting channel;

[0046] 101. agent source; 102. agent tank; 103. gas source; 104. first pipeline; 105. second pipeline; 106. third pipeline; 107. self-cleaning valve body; 108. fourth pipeline; 109. control valve body; 110. fifth pipeline; 111. agent circuit pressure regulating valve; 112. hydraulic switch; 113. filter; 114. agent adding switch; 115. gas circuit pressure regulating valve; 116. gas transmission valve body; 117. waste discharge switch; 118. throttle valve. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0049] Embodiment 1

[0050] Combination Figures 1 to 3 A nozzle device is shown, comprising a nozzle 1, a mixing joint 2 and a delivery valve body 7; the mixing joint 2 comprises an air inlet end, a delivery end 4 and a discharge end 5, the nozzle 1 is connected to the discharge end 5, the air inlet end of the mixing joint 2 is connected to an air inlet joint 6; the delivery valve body 7 is connected to an delivery joint 8 and a delivery joint 9, the delivery end 4 of the mixing joint 2 is connected to the delivery valve body 7 via the delivery joint 9.

[0051] In this embodiment, the drug delivery valve body 7 is a gas-controlled valve, and a gas-controlled connector 10 is also connected to the drug delivery valve body 7 .

[0052] In this embodiment, the drug delivery valve body 7 is a three-way air-controlled valve, and a cleaning connector 11 is also connected to the drug delivery valve body 7 .

[0053] In this embodiment, the mixing joint 2 is provided with an air inlet channel 13 at the air inlet end, a feed channel 12 at the feed end 4, and an ejection channel 14 at the ejection end 5, wherein the air inlet channel 13 is connected to the ejection channel 14, and the feed channel 12 is connected to the air inlet channel 13 through a connecting channel 15.

[0054] The advantage of this embodiment is that it provides a spray head device, the nozzle part of which is easy to replace and disassemble, and can effectively reduce the maintenance cost of the spray head device.

[0055] Embodiment 2

[0056] Combination Figure 4 A release agent spraying system is shown, which includes the nozzle device described in the above-mentioned embodiment 1; it also includes a supply component and an air supply component; the supply component includes a source 101 for supplying a release agent and a filling tank 102 for storing the release agent, and the source 101 forms a supply connection with the filling tank 102; the air supply component includes an air source 103 for supplying gas; the filling tank 102 and the nozzle 1 form a supply connection through a first pipeline 104, and the delivery valve body 7 is located on the first pipeline 104 and is used to control the opening and closing of the first pipeline 104; the air source 103 and the nozzle 1 form an air supply connection through a second pipeline 105.

[0057] In this embodiment, when the nozzle device described in the first embodiment is used, the cleaning connector 11 of the delivery valve body 7 can be blocked, or the three-way air-controlled valve serving as the delivery valve body 7 in the nozzle device can be replaced with a two-way air-controlled valve.

[0058] In this embodiment, a fourth pipeline 108 is further included; the gas source 103 and the delivery valve body 7 are connected to each other through the fourth pipeline 108 to form a gas supply connection, so that the opening and closing of the delivery valve body 7 is pneumatically controlled by the gas provided by the fourth pipeline 108; a control valve body 109 is also provided on the fourth pipeline 108, and the opening and closing of the fourth pipeline 108 is controlled by opening and closing the control valve body 109.

[0059] In this embodiment, a fifth pipeline 110 is also included; the gas source 103 is connected to the pressurized port of the agent tank 102 through the fifth pipeline 110 to form an air supply; the agent supply component also includes a agent circuit pressure regulating valve 111 and a hydraulic switch 112, and the agent circuit pressure regulating valve 111 and the hydraulic switch 112 are both arranged on the fifth passage; the connection or interruption of the fifth pipeline 110 is controlled by opening and closing the hydraulic switch 112, and the pressure of the gas input into the agent tank 102 is controlled by the agent circuit pressure regulating valve 111.

[0060] In this embodiment, a waste outlet is further provided on the agent tank 102, and a waste outlet switch 117 is further provided at the waste outlet. After the waste outlet switch 117 is turned on, the waste agent remaining in the agent tank 102 can be discharged through the waste outlet.

[0061] In this embodiment, the agent supply component also includes a filter 113 and a dosing switch 114, and the filter 113 and the dosing switch 114 are both located on the passage between the agent source 101 and the agent tank 102; the connection or interruption of the passage between the agent source 101 and the agent tank 102 is controlled by opening and closing the dosing switch 114, and the release agent input into the agent tank 102 is filtered through the filter 113.

[0062] In this embodiment, a throttle valve 118 is further provided on the first pipeline 104 , and the flow rate of the release agent flowing through the first pipeline 104 to the agent delivery valve body 7 can be adjusted by the throttle valve 118 .

[0063] In this embodiment, the gas supply component also includes an air circuit pressure regulating valve 115, which is arranged on all pipelines connected to the gas source 103, and the air circuit pressure regulating valve 115 controls the air pressure input from the gas source 103 to each pipeline.

[0064] In this embodiment, a gas delivery valve body 116 is disposed on the second pipeline 105 , and the on-off of the second pipeline 105 is controlled by opening and closing the gas delivery valve body 116 .

[0065] The spraying process of this embodiment:

[0066] Before spraying, the dosing switch 114 is first turned on, so that the mold release agent at the agent source 101 flows into the liquid tank after being filtered by the filter 113, and then the dosing switch 114 is closed after the mold release agent is added to the liquid tank. Then, the hydraulic switch 112 is turned on, and after the gas pressure provided by the gas source 103 is adjusted by the agent circuit pressure regulating valve 111, the gas is filled into the liquid tank through the fifth pipeline 110. The mold release agent in the liquid tank will flow toward the nozzle 1 through the first pipeline 104 under the action of the pressurized gas and be blocked at the agent delivery valve body 7;

[0067] During spraying, the control valve body 109 and the gas delivery valve body 116 are opened, the second pipeline 105 and the fourth pipeline 108 are connected, and the gas provided by the gas source 103 is passed to the agent delivery valve body 7 and the mixing joint 2. The agent delivery valve body 7 switches its state under the action of the gas to make the first pipeline 104 pass through, and the release agent blocked at the agent delivery valve body 7 can flow into the mixing joint 2 and mix with the gas input into the mixing joint 2, and finally sprayed out through the nozzle 1;

[0068] After spraying is completed, first close the control valve body 109 so that the agent delivery valve body 7 returns to its original state to block the first pipeline 104, ensuring that the release agent cannot reach the mixing joint 2, and then close the gas delivery valve body 116 to interrupt the second pipeline 105 to ensure that the gas cannot reach the mixing joint 2.

[0069] The advantage of this embodiment is that it provides a release agent spraying system that can perfectly apply the nozzle device mentioned in the first embodiment, while reducing the overall maintenance cost of the system and making the system easier to operate.

[0070] Embodiment 3

[0071] Combination Figure 5 The main difference between the release agent spraying system shown in the embodiment 2 and the release agent spraying system described in the embodiment 2 is that:

[0072] In this embodiment, a third pipeline 106 is further included; the gas source 103 and the delivery valve body 7 are connected to each other through the third pipeline 106 to form an air supply connection, so that the gas provided by the third pipeline 106 can be used to clean the residual release agent in the delivery valve body 7; a self-cleaning valve body 107 is provided on the third pipeline 106, and the opening and closing of the third pipeline 106 is controlled by opening and closing the self-cleaning valve body 107.

[0073] In this embodiment, when the nozzle device in the first embodiment is used, the fourth pipeline 108 can be connected to the cleaning connector 11 of the infusion valve body 7 .

[0074] The self-cleaning process of this embodiment:

[0075] During self-cleaning, the self-cleaning valve body 107 is opened, and the gas provided by the gas source 103 is input into the agent delivery valve body 7 through the third pipeline 106, and then enters the mixing joint 2 from the agent delivery valve body 7, and finally is ejected from the nozzle 1, thereby relying on the gas to discharge the residual release agent in the pipeline, the agent delivery valve body 7, the mixing joint 2 and the nozzle 1.

[0076] The remaining structures and methods of this embodiment are consistent with those of the above-mentioned embodiment 1 and will not be described in detail here.

[0077] The advantage of this embodiment is that compared with the solution in the second embodiment, a third pipeline for self-cleaning of the nozzle device is added in this embodiment, so that the system can also be used for spraying certain release agents with strong adhesion, thereby improving the applicability of the spraying system.

[0078] The above specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A nozzle device, characterized in that: Included are: Nozzle (1); A mixing joint (2), comprising an air inlet end (3), an inlet end (4) and an outlet end (5), wherein the nozzle (1) is connected to the outlet end (5), and an air inlet joint (6) is connected to the air inlet end (3) of the mixing joint (2); The drug delivery valve body (7) is connected to a drug inlet connector (8) and a drug outlet connector (9), and the drug inlet end (4) of the mixing connector (2) is connected to the drug delivery valve body (7) via the drug outlet connector (9).

2. A nozzle device according to claim 1, characterized in that: The drug delivery valve body (7) is a gas-controlled valve, and a gas-controlled connector (10) is also connected to the drug delivery valve body (7).

3. A nozzle device according to claim 2, characterized in that: The drug delivery valve body (7) is a three-way air-controlled valve, and a cleaning connector (11) is also connected to the drug delivery valve body (7).

4. A release agent spraying system, characterized in that: A nozzle device comprising any one of claims 1 to 3; Also included are: A reagent supply component, comprising a reagent source (101) for supplying a release agent and a reagent tank (102) for storing the release agent, wherein the reagent source (101) and the reagent tank (102) are in communication with each other for supplying the release agent; A gas supply assembly, comprising a gas source (103) for supplying gas; The agent supplying tank (102) and the nozzle (1) are connected to each other via a first pipeline (104); the agent delivery valve body (7) is located on the first pipeline (104) and is used to control the opening and closing of the first pipeline (104); The gas source (103) and the nozzle (1) are connected to each other through a second pipeline (105) to form a gas supply connection.

5. A release agent spraying system according to claim 4, characterized in that: The device further comprises a third pipeline (106); the gas source (103) and the delivery valve body (7) are connected to each other through the third pipeline (106) to form a gas supply connection, so that the gas provided by the third pipeline (106) can be used to clean the mold release agent remaining in the delivery valve body (7); The third pipeline (106) is provided with a self-cleaning valve body (107), and the opening and closing of the third pipeline (106) is controlled by opening and closing the self-cleaning valve body (107).

6. A release agent spraying system according to claim 4, characterized in that: It also includes a fourth pipeline (108); the gas source (103) and the drug delivery valve body (7) are connected to each other through the fourth pipeline (108) to form a gas supply connection, so that the gas provided by the fourth pipeline (108) can realize the pneumatic control of the opening and closing of the drug delivery valve body (7); The fourth pipeline (108) is also provided with a control valve body (109), and the opening and closing of the fourth pipeline (108) is controlled by opening and closing the control valve body (109).

7. A release agent spraying system according to claim 4, characterized in that: It also includes a fifth pipeline (110); the gas source (103) is connected to the pressurizing port of the filling tank (102) through the fifth pipeline (110) to form a gas supply connection; The drug supply assembly further comprises a drug circuit pressure regulating valve (111) and a hydraulic switch (112), wherein the drug circuit pressure regulating valve (111) and the hydraulic switch (112) are both arranged on the fifth passage; The opening and closing of the hydraulic switch (112) is used to control the connection or interruption of the fifth pipeline (110), and the pressure of the gas input into the filling tank (102) is controlled by the agent circuit pressure regulating valve (111).

8. A release agent spraying system according to claim 4, characterized in that: The dosage supply assembly further comprises a filter (113) and a dosage switch (114), wherein the filter (113) and the dosage switch (114) are both located on the passage between the dosage source (101) and the dosage tank (102); The opening and closing of the dosing switch (114) is used to control the connection or interruption of the passage between the agent source (101) and the agent filling tank (102), and the filter (113) is used to filter the release agent input into the agent filling tank (102).

9. A release agent spraying system according to claim 4, characterized in that: The gas supply assembly also includes an air circuit pressure regulating valve (115), which is arranged on all pipelines connected to the gas source (103). The air circuit pressure regulating valve (115) controls the air pressure input from the gas source (103) to each pipeline.

10. A release agent spraying system according to claim 4, characterized in that: The second pipeline (105) is provided with a gas delivery valve body (116), and the opening and closing of the second pipeline (105) is controlled by opening and closing the gas delivery valve body (116).

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